Tunable Laser

A tunable laser includes an optical cavity comprising a first and second mirror. A gain medium is positioned in the optical cavity that generates stimulated emission in the optical cavity when biased. A thermally tunable optical filter is positioned in the optical cavity that is heated to a temperature that selects a desired optical mode of the optical cavity. A thermally tunable optical phase retarder is positioned in the optical cavity that is heated to a temperature which changes an optical path length in the optical cavity by an amount corresponding to a resonant frequency of the tunable optical filter so that a phase-matching condition of the optical cavity is shifted to the desired optical mode of the optical cavity selected by the thermally tunable optical filter. 1. A tunable laser comprising:a. an optical cavity comprising a first and second mirror;b. a gain medium positioned in the optical cavity, the gain medium generating stimulated emission in the optical cavity when biased;c. a thermally tunable optical filter positioned in the optical cavity, the thermally tunable optical filter being heated to a temperature that selects a desired optical mode of the optical cavity; andd. a thermally tunable optical phase retarder positioned in the optical cavity, the thermally tunable optical phase retarder being heated to a temperature that changes an optical path length in the optical cavity by an amount corresponding to a resonant frequency of the tunable optical filter so that a phase-matching condition of the optical cavity is shifted to the desired optical mode of the optical cavity selected by the thermally tunable optical filter.2. The tunable laser of wherein the gain medium positioned in the optical cavity comprises a semiconductor gain medium.3. The tunable laser of wherein the thermally tunable filter comprises a thermally tunable Fabry-Perot optical filter.4. The tunable laser of wherein the thermally tunable filter comprise a tunable Fabry-Perot optical ...

WIRELESS COMMUNICATION DEVICE AND PORTABLE ELECTRONIC DEVICE

A wireless communication device for a portable electronic device includes a plurality of wireless communication modules for processing a wireless signal according to a plurality of communication protocols, an antenna module for transmitting and receiving the wireless signal, and a radio-frequency switch circuit for determining which one of the plurality of wireless communication modules is electrically connected to the antenna module according to a switching signal. A transmission frequency band of the antenna module and an operation frequency band of the radio-frequency switch circuit cover a plurality of transmission frequency bands of the plurality of wireless communication modules. 2. The wireless communication device of claim 1 , wherein the radio-frequency switch circuit is implemented with a Printed Circuit Board (PCB).3. The wireless communication device of claim 2 , wherein the radio-frequency switch circuit is coupled to the plurality of wireless communication modules and the antenna module via PCB claim 2 , coaxial cables claim 2 , or Flexible Printed Circuit (FPC) cables.4. The wireless communication device of claim 1 , wherein the plurality of wireless communication modules comprise a Long Term Evolution (LTE) communication module claim 1 , a Worldwide Interoperability for Microwave Access (WIMAX) communication module claim 1 , and a Global Positioning System (GPS) communication module.5. The wireless communication device of claim 1 , wherein the antenna module comprises:a primary antenna, coupled to the radio-frequency switch circuit; andan auxiliary antenna, coupled to the radio-frequency switch circuit.6. The wireless communication device of claim 5 , wherein the radio-frequency switch circuit comprises: a first decoder, for decoding the switching signal to generate a plurality of first gate control signals; and', 'a plurality of first switches, each first switch coupled to a wireless communication module of the plurality of wireless communication ...

CONNECTOR FOR CONNECTING A COAXIAL CABLE AND A CIRCUIT BOARD AND RELATED TRANSMISSION INTERFACE AS WELL AS ASSEMBLY METHOD THEREWITH

A connector for connecting a coaxial cable and a circuit board is disclosed. The connector includes a main body, a first holding portion, a second holding portion and a fixing structure. The first holding portion extends from a first end portion of the main body for holding a first insulation layer of the coaxial cable. The second holding portion extends from the main body in a position located between a second end portion opposite to the first end portion and the first holding portion for holding a braid layer of the coaxial cable. The fixing structure extends from the second end portion of the main body in a direction away from the second holding portion for disposing through at least one hole on the circuit board, so as to fix the coaxial cable on the circuit board. 1. A connector for connecting a coaxial cable and a circuit board , comprising:a main body;a first holding portion extending from a first end portion of the main body for holding a first insulation layer of the coaxial cable;a second holding portion extending from the main body in a position located between a second end portion opposite to the first end portion and the first holding portion for holding a braid layer of the coaxial cable; anda fixing structure extending from the second end portion of the main body in a direction away from the second holding portion for disposing through at least one hole on the circuit board, so as to fix the coaxial cable on the circuit board.2. The connector of claim 1 , wherein the fixing structure comprises:a first pin extending in the direction away from the second holding portion and located on a side of the main body; anda second pin extending in the direction away from the second holding portion and located on another side of the main body, the at least one hole on the circuit board comprising a first through hole and a second through hole, and the first pin and the second pin being respectively disposed through the first through hole and the second through ...

Method of Fabricating Indium-111 Radioactive Isotope

The present invention provides a method for fabricating an indium(In)-111 radioactive isotope. A target of cadmium(Cd)-112 is processed through steps of dissolving with heat, absorbing, washing, desorbing and drying for obtaining the In-111 radioactive isotope. Thus, chemical separation is coordinated with the target for fabricating the In-111 radioactive isotope with high efficiency and low cost for production procedure. 1. A method of fabricating an indium(In)-111 radioactive isotope , comprising steps of:(a) obtaining a heating plate in a bromic acid solution with a target having a surface of cadmium(Cd)-112 obtained on said heating plate and adding pressure on said target to be dissolved with heat coordinated with said heating plate to obtain a solution of In-111 and Cd-112;(b) extracting said solution of In-111 and Cd-112 to be put into a tube to process ion exchange to adsorb In-111 in said tube and drain a solution of Cd-112;(c) adding a bromic acid solution into said tube to wash out In-111 with a waste liquid drained;(d) adding a bromic acid solution into said tube to desorb In-111 with said bromic acid solution drained together to obtain an In-111 semi-product liquid; and(e) drying said In-111 semi-product liquid to obtain a product of In-111 radioactive isotope.2. The method according to claim 1 ,wherein, in step (a), said bromic acid solution, said heating plate and said target are obtained in a container and a pressing unit is used to add pressure to said target.3. The method according to claim 1 ,wherein, in step (a), said bromic acid solution has a mole concentration of 8N.4. The method according to claim 1 ,wherein said tube is a resin column.5. The method according to claim 1 ,wherein, in step (b), said solution of Cd-112 drained after processing ion exchange is held in a recycling tank.6. The method according to claim 1 ,wherein, in step (c), said bromic acid solution added into said tube has a mole concentration of 8N.7. The method according to ...

Through Silicon Via Layout Pattern

A semiconductor device comprises a substrate with a first side and a second side, wherein a plurality of active circuits are formed adjacent to the first side of the substrate and a plurality of through silicon vias arranged in a polygon shape and extending from the first side of to the second side, wherein the polygon shape has more than six sides, and wherein each through silicon via is placed at a corresponding apex of the polygon shape. 1. An apparatus comprising:a substrate with a first side and a second side, wherein a plurality of active circuits are formed adjacent to the first side of the substrate; anda plurality of through silicon vias arranged in a polygon shape and extending from the first side of to the second side, wherein the polygon shape has more than six sides, and wherein each through silicon via is placed at a corresponding apex of the polygon shape.2. The apparatus of claim 1 , wherein the through silicon via comprises:an opening filled with conductive materials; andsidewalls covered by a liner.3. The apparatus of claim 1 , wherein the polygon is a hexagon.4. The apparatus of claim 1 , wherein the polygon is an octagon.5. The apparatus of claim 1 , wherein the polygon is a dodecagon.6. The apparatus of claim 1 , wherein the polygon has more than eight sides and approximates to a circle.7. The apparatus of claim 1 , wherein:the through silicon via has a diameter in a range from about 1 um to about 30 um.8. The apparatus of claim 7 , wherein:a distance between two adjacent through silicon vias is in a range about 1.2 times the diameter of the through silicon via to about 6 times the diameter of the through silicon via.9. A system comprising:a substrate with a first side and a second side, wherein a plurality of active circuits are formed adjacent to the first side of the substrate;a first polygon formed by a plurality of first through silicon vias, wherein the first polygon has more than six sides; anda second polygon formed by a plurality of ...

PORTABLE LASER INDUCED BREAKDOWN SPECTROSCOPY SYSTEMS

An embodiment of a laser induced breakdown system is described that comprises a portable device that includes: a laser configured to produce a beam comprising a plurality of repeating pulses; a processor configured to open a data acquisition window after a delay period, wherein the delay period begins upon production of one of the pulses; one or more optical elements configured to direct the beam at a sample and collect emitted light from a plasma continuum; and an optical detector configured to produce a plurality of signal values from the emitted light from the plasma continuum collected during the data acquisition window, wherein the processor is configured to identify an element from the signal values. 1. A laser induced breakdown system , comprising: a laser configured to produce a beam comprising a plurality of repeating pulses;', 'a processor configured to open a data acquisition window after a delay period, wherein the delay period begins upon production of one of the pulses;', 'one or more optical elements configured to direct the beam at a sample and collect emitted light from a plasma continuum; and', 'an optical detector configured to produce a plurality of signal values from the emitted light from the plasma continuum collected during the data acquisition window, wherein the processor is configured to identify an element from the signal values., 'a portable device that comprises2. The laser induced breakdown system of claim 1 , further comprising:a second optical detector that detects a time point of an actual pulse from the laser.3. The laser induced breakdown system of claim 2 , wherein:the processor initiates the timing of the delay period using the time point of the actual pulse.4. The laser induced breakdown system of claim 1 , further comprising:a temperature detector that acquires a temperature measurement.5. The laser induced breakdown system of claim 4 , wherein:the temperature detector is positioned inside a housing of the portable device.6. ...

CORRECTING TIME

Methods, systems, and computer-readable storage mediums for correcting time in a nuclear magnetic resonance device are provided. In one aspect, a method includes obtaining respective transmission time delays of three gradient pulse signals that are generated by a three-dimensional gradient subsystem of the nuclear magnetic resonance device and include a slice-selection gradient signal, a phase-encoding gradient signal, and a frequency-encoding gradient signal, determining a time correction value according to the obtained respective transmission time delays of the three gradient pulse signals, and correcting a respective output time of each of the three gradient pulse signals, an output time of a radio-frequency (RF) pulse signal generated by a RF transmitting subsystem of the nuclear magnetic resonance device, and a reception time of a magnetic resonance signal received by a RF receiving subsystem in a scanning cycle according to the determined time correction value. 1. A method of correcting time in a nuclear magnetic resonance device , the method comprising:obtaining, by one or more processors in the nuclear magnetic resonance device, respective transmission time delays of three gradient pulse signals generated by a three-dimensional gradient subsystem of the nuclear magnetic resonance device, wherein the three gradient pulse signals comprise a slice-selection gradient signal, a phase-encoding gradient signal, and a frequency-encoding gradient signal;determining, by the one or more processors, a time correction value according to the obtained respective transmission time delays of the three gradient pulse signals; andcorrecting, by the one or more processors and according to the determined time correction value, a respective output time of each of the three gradient pulse signals, an output time of a radio-frequency (RF) pulse signal generated by a RF transmitting subsystem of the nuclear magnetic resonance device, and a reception time of a magnetic resonance ...

GENERATING GRADIENT WAVEFORM

Methods of generating a gradient waveform, gradient waveform generators and magnetic resonance imaging systems are provided. In one aspect, a first digital value is obtained by quantizing and coding spatial position information of a voxel of a subject according to the number of preset quantization bits, wherein the number of the quantization bits are more than the number of allowed input bits for a DAC; a second digital value is determined to be inputted into the DAC according to the first digital value and the number of the allowed input bits for the DAC; a quantization error is determined according to the first digital value and the second digital value; an error accumulating value is updated by accumulating the quantization error to the error accumulation value; the second digital value corrected according to the error accumulation value; and the corrected second digital value is inputted into the DAC. 1. A method of generating a gradient waveform , comprising:obtaining a first digital value by quantizing and coding spatial position information of a voxel of a subject according to the number of preset quantization bits, wherein the number of the quantization bits are more than the number of allowed input bits for a Digital to Analog Converter (DAC);determining a second digital value to be inputted into the DAC according to the first digital value and the number of the allowed input bits for the DAC;determining a quantization error according to the first digital value and the second digital value;updating an error accumulating value by accumulating the quantization error to the error accumulation value, wherein the error accumulating value indicates an error corresponding to voxels of the subject which have been processed;correcting the second digital value according to the error accumulation value; andinputting the corrected second digital value into the DAC in a way that the DAC outputs a gradient waveform according to the corrected second digital value inputted ...

Generating gradient signal

Methods of generating a gradient signal, gradient signal generators and magnetic resonance imaging systems are provided. In one aspect, a method includes obtaining a target amplitude and a target duration associated with a target precision corresponding to the gradient signal; generating a first actual amplitude by intercepting the target amplitude according to an actual precision of a DAC; generating a second actual amplitude according to the first actual amplitude, wherein a difference between the second actual amplitude and the first actual amplitude is 1; determining a first actual duration of outputting the first actual amplitude and a second actual duration of outputting the second actual amplitude according to the target amplitude, the target duration, the first actual amplitude and the second actual amplitude; controlling the DAC to output the first actual amplitude according to the first actual duration and output the second actual amplitude according to the second actual duration.

METHOD AND APPARATUS FOR MANAGING TIME SERIES DATABASE

A method for managing a time series database, includes: monitoring multiple operations that access the time series database, so as to identify types of the multiple operations, the types of the multiple operations comprising at least one of the query types or insert types; with respect to a storage mode among multiple storage modes, obtaining costs that the multiple operations access the time series database based on the types, respectively; selecting a storage mode with the minimum cost from the multiple storage modes; and during a predetermined time period, storing into the time series database data values that are collected from multiple measurement points according to the selected storage mode. In one embodiment, there is provided an apparatus for managing a time series database. By means of the method and apparatus of the present invention, the storage and query efficiency with respect to the time series database can be increased. 1. A method for managing a time series database , comprising:monitoring multiple operations that access the time series database, so as to identify types of the multiple operations, the types of the multiple operations comprising at least one of a query type and an insert type;with respect to a storage mode among multiple storage modes, obtaining costs that the multiple operations access the time series database based on the types, respectively;selecting a storage mode corresponding to the minimum cost from the multiple storage modes; andduring a predetermined time period, storing into the time series database data values that are collected from multiple measurement points according to the selected storage mode.2. The method according to claim 1 , further comprising:monitoring status information of a computer device running the time series database; andrevising the cost based on the status information.3. The method according to claim 2 , wherein the multiple storage modes at least comprise any of:a group storage mode: based on groups ...

ELECTRONIC DEVICE FOR CHECKING FASTENING STATE OF SCREWS

An electronic device for checking a fastening state of screws includes a receiving member, a cover, an electric screwdriver, a processor, and a warning unit. The receiving member receives a mountable device. The cover includes a number of screw guiding members, the screw guiding members guides the screws into screw holes on the mountable device. The electric screwdriver fastens the screws into the screw holes on the mountable device. The processor predefines an order of the electric screwdriver fastening the screws in response to operations of an operator; in a process of the electric screwdriver fastening the screws into the screw holes on the mountable device received in the receiving member, checks whether the fastening order is the same as the predefined order; and when the fastening order is not the same as the predefined order, controls the warning unit to output a warning message. 1. An electronic device for checking a fastening state of screws comprising:a receiving member configured to receive a mountable device to be mounted via screws;a cover covering the receiving member and comprising a plurality of screw guiding members, wherein the screw guiding members are used for guiding the screws into screw holes on the mountable device;an electric screwdriver configured to fasten the screws into the screw holes on the mountable device;a processor coupled to the electric screwdriver;a warning unit coupled to the processor; predefine an order of the electric screwdriver fastening the screws in response to operations of an operator;', 'check, in a process of the electric screwdriver fastening the screws into the screw holes on the mountable device received in the receiving member, whether the fastening order is the same as the predefined order; and', 'control, when the fastening order is not the same as the predefined order, the warning unit to output a warning message., 'a storage device coupled to the processor and storing a plurality of instructions for ...

Vibration optical path assembly and laser induced breakdown spectograph having same

The disclosure provides a vibration optical path assembly and a laser induced breakdown spectrograph have the same. The vibration optical path assembly includes an optical platform, a cantilever and an optical lens; the cantilever at least includes a vertical arm disposed at the optical platform and a cross arm disposed at the vertical arm, wherein at least one of the vertical arm and the cross arm is made of an elastic material; the vibration generating device, provided on the cantilever and configured to adjustably generate a first vibration; the optical lens, provided on the cantilever and configured for the light to pass through to form a light spot. The first vibration is transmitted to the optical lens through the cantilever to generate a second vibration, and the light is passed through the optical lens with vibrating to generate a light spot movement phenomenon.

TOUCH DEVICE AND CONTROL METHOD THEREOF

A touch device and a control method thereof are provided. In the control method, a sensing signal generated by a sensor is received. When an operating object is present, a touch screen is configured for touchable regions and untouchable regions, wherein the untouchable regions cannot generate a response through a touch by the operating object. A gesture is received on the untouchable regions of the touch screen, a processor determines whether the gesture is conformed to a default gesture setting, and the processor decides whether or not to adjust part or all of the untouchable regions to the touchable regions according to the determining result. Accordingly, the touch device and the control method thereof of the embodiments of the invention can prevent or lower the occurrence of an accidental touch by a user and enhance the operating convenience of the user. 1. A control method of a touch device , wherein the touch device comprises a touch screen and at least one sensor , and the control method comprises:receiving a sensing signal from the at least one sensor to detect whether an operating object is present;when an operating object is present, the touch screen is configured for at least one touchable region and at least one untouchable region, wherein the at least one untouchable region cannot generate a response through a touch by the operating object; andreceiving a gesture on the at least one untouchable region, and determining whether the gesture is conformed to a default gesture setting to decide whether or not to adjust part or all of the at least one untouchable region to the at least one touchable region.2. The control method of claim 1 , wherein the default gesture setting comprises at least one default gesture and an execution time and an area of the at least one untouchable region touched by the operating object corresponding to each of the at least one default gesture claim 1 , and the step of determining whether the gesture is conformed to the default ...

CALIBRATING RADIO FREQUENCY POWER OF MAGNETIC RESONANCE IMAGING SYSTEM

A method of calibrating a RF power of a magnetic resonance imaging system is provided. With a fixed time-domain length of RF pulses, a RF pulse amplitude having a larger step size increment is selected to perform a traversal scanning to obtain FID signal values corresponding to different RF pulse amplitudes. In subsequent traversal scanning, the step size is continuously scaled down, and a start value and an end value are re-determined to continuously narrow a range for the subsequent traversal scanning, which may quickly and accurately determine a RF pulse amplitude corresponding to a 90° flip angle that can be obtained from a RF pulse amplitude corresponding to a maximum FID signal value in a last traversal scanning. A linear relationship between a flip angle and a RF pulse amplitude is obtained according to the 90° flip angle and its corresponding RF pulse amplitude for calibrating a RF power. 1. A method of calibrating a radio frequency (RF) power of a magnetic resonance imaging system , the method comprising:determining a first start value, a first end value and a first step size regarding amplitudes of RF pulses which are to be applied in a first traversal scanning;performing the first traversal scanning according to the first start value, the first end value and the first step size with a fixed time-domain length of the RF pulses, so as to obtain free induction decay (FID) signal values corresponding to different RF pulse amplitudes in the first traversal scanning, wherein the FID signal values obtained in the first traversal scanning constitute a first FID signal set having an uptrend segment and a downtrend segment;performing a traversal parameter setting for determining a n-th start value, a n-th end value and a n-th step size regarding amplitudes of RF pulses which are to be applied in a n-th traversal scanning, wherein n is a positive integer greater than or equal to 2, the n-th start value is a RF pulse amplitude corresponding to an FID signal value of ...

LASER INDUCED BREAKDOWN SPECTROSCOPY SAMPLE CHAMBER

Methods and apparatus for laser induced breakdown spectroscopy (LIBS) sample chamber. An apparatus includes a sample chamber, a laser source connected to an excitation optics assembly, the excitation optics assembly connected to a first port on the sample chamber, a collimator assembly connected to a spectrometer, the collimator assembly connected to a second port on the sample chamber, and a first lens tube positioned on the first port and a second lens tube positioned on the second port, the first lens tube protecting the first port connected to the excitation optics assembly and the second lens tube protecting the second port connected to the collimator assembly from particles emitted when a laser pulse from the laser source ablates a surface of a target sample and generates a plasma. 1. An apparatus comprising:a sample chamber;a laser source connected to an excitation optics assembly, the excitation optics assembly connected to a first port on the sample chamber;a collimator assembly connected to a spectrometer, the collimator assembly connected to a second port on the sample chamber; anda first lens tube positioned on the first port and a second lens tube positioned on the second port, the first lens tube protecting the first port connected to the excitation optics assembly and the second lens tube protecting the second port connected to the collimator assembly from particles emitted when a laser pulse from the laser source ablates a surface of a target sample and generates a plasma.2. The apparatus of wherein the target sample is positioned in the sample chamber.3. The apparatus of wherein the spectrometer is a laser induced breakdown spectrometer.4. The apparatus of wherein the first lens tube and the second lens tube are constructed of a transparent material.5. The apparatus of wherein the transparent material is glass.6. The apparatus of wherein the transparent material is plastic.7. The apparatus of wherein the transparent material is honeycombed.8. The ...

Screw disassembly device

A screw disassembly device includes a driving mechanism, an electric screwdriver, and a collecting mechanism. The driving mechanism is coupled to the electric screwdriver to drive the electric screwdriver to move. The electric screwdriver disassembles a screw and includes a head portion. The head portion adsorbs the screw. The collecting mechanism includes a stripping member, a transfer block, and a receiving box. The transfer block is mounted on the driving mechanism. The transfer block defines a transfer chamber. The head portion movably passes through the transfer block and the transfer chamber. The stripping member clamps the screw within the transfer chamber to remove the screw from the head portion. An inner chamber of the receiving box is coupled to the transfer chamber by the transfer tube. The receiving box generates a negative pressure to suck the screw through the transfer tube into the receiving box.

DETERMINING ACCESS PERMISSION

An access permission level for a first individual may be calculated by utilizing repositories of social network databases. The facial image of a first individual may be captured and compared with a repository of pre-categorized individuals. In response to the facial image of the first individual being absent from the repository of pre-categorized individuals, the repositories of social network databases may be crawled to collect facial images of non-categorized individuals. The first facial image may be compared with the facial images of non-categorized individuals, and a second individual may be identified. In response to identifying, categorization data associated with the second individual may be collected. Utilizing the categorization data, the second individual may be sorted into one of a plurality of categories. Based upon an image match score and the category which the second individual is sorted into, an access permission level may be determined and provided to a user. 1. A computer-implemented method for utilizing repositories of social network databases for calculating an access permission level for a first individual , comprising:receiving a first facial image of the first individual captured through a monitoring device at a computerized locking mechanism;comparing, in response to the receiving, the first facial image with facial images of pre-categorized individuals stored in a repository of pre-categorized individuals, wherein each pre-categorized individual is sorted into a category within a group of categories including at least a first category, a second category, and a third category;comparing, in response to the first facial image being absent from the repository of pre-categorized individuals, the first facial image with facial images of non-categorized individuals stored in a repository of non-categorized individuals;identifying, based on the comparing, a facial image of a second individual that has an image match score with the first facial ...

PORTABLE LASER INDUCED BREAKDOWN SPECTROSCOPY SYSTEMS

An embodiment of a laser induced breakdown system is described that comprises a portable device that includes: a laser configured to produce a beam comprising a plurality of repeating pulses; a processor configured to open a data acquisition window after a delay period, wherein the delay period begins upon production of one of the pulses; one or more optical elements configured to direct the beam at a sample and collect emitted light from a plasma continuum; and an optical detector configured to produce a plurality of signal values from the emitted light from the plasma continuum collected during the data acquisition window, wherein the processor is configured to identify an element from the signal values. 1. A laser induced breakdown system , comprising: a laser configured to produce a beam comprising a plurality of repeating pulses;', 'a detector that detects a time point of an actual pulse from the laser;', 'a processor configured to open a data acquisition window after a delay period, wherein the delay period begins at the time point of the actual pulse;', 'one or more optical elements configured to direct the beam at a sample and collect emitted light from a plasma continuum; and', 'a second optical detector configured to produce a plurality of signal values from the emitted light from the plasma continuum collected during the data acquisition window, wherein the processor is configured to identify an element from the signal values., 'a portable device that comprises23.-. (canceled)4. The laser induced breakdown system of claim 1 , further comprising:a temperature detector that acquires a temperature measurement.5. The laser induced breakdown system of claim 4 , wherein:the temperature detector is positioned inside a housing of the portable device.6. The laser induced breakdown system of claim 4 , wherein:the temperature measurement is acquired at substantially the same time as when the laser produces the beam.7. The laser induced breakdown system of claim 6 , ...

PORTABLE LASER INDUCED BREAKDOWN SPECTROSCOPY SYSTEMS

An embodiment of a laser induced breakdown system is described that comprises a portable device that includes: a laser configured to produce a beam comprising a plurality of repeating pulses; a processor configured to open a data acquisition window after a delay period, wherein the delay period begins upon production of one of the pulses; one or more optical elements configured to direct the beam at a sample and collect emitted light from a plasma continuum; and an optical detector configured to produce a plurality of signal values from the emitted light from the plasma continuum collected during the data acquisition window, wherein the processor is configured to identify an element from the signal values. 1. A laser induced breakdown system , comprising: a laser configured to produce a beam comprising a plurality of repeating pulses;', 'one or more optical elements configured to direct the beam at a sample and collect emitted light from a plasma continuum;', 'an optical detector configured to produce a plurality of signal values from the emitted light from the plasma continuum; and', a) open a first data acquisition window after a first delay period and a second data acquisition window after a second delay period, wherein the first delay period begins upon production of one of the pulses;', 'b) obtain the plurality of signal values from the first data acquisition window and a plurality of signal values from the second data acquisition window;', 'c) calculate a differential value between one or more of the signal values from the first data acquisition window and the corresponding signal values from the second data acquisition window;', 'd) select one of the first or second data acquisition windows based on the differential value; and', 'e) identify a material from the signal values of the selected data acquisition window., 'a processor configured to], 'a portable device that comprises2. The laser induced breakdown system of claim 1 , further comprising:a second ...

A sodium-free complex silicon salt electrolyte for a storage battery

The present invention relates to a sodium-free complex silicon salt electrolyte for a storage battery. The electrolyte is composed of (A) 1 share of inorganic acid at a specific gravity of 1.2-1.8 and (B) 0.5-2 shares of organic silicon compound at a specific gravity of 0.7-1.2° Be', and the electrolyte may further contain (C) surfactant at a specific gravity of 1.1-1.6. The volume percent ratio of (C) to (A+B+C) is 0.5-2 %. The electrolyte according to the present invention is applicable to a conventional lead-plate storage battery or battery made of other electrode material. There is an advantage in preventing the electrolyte from polluting environment in the process of manufacturing, using and disposing the battery. The battery has a good characteristic of large current discharge and meets the need for powered storage battery. The quantity of electricity can remain for one year without the battery being charged.

Compositely structured insulation adhesive film and preparation method thereof

The insulation adhesive film material is composed of a three-layer structure, its insulation polymer composite is supported by a thin film material, and a surface of the insulation polymer composite is covered with a layer of protective film. A release force of a support film is 25-60 μN/mm, and a release force of the protective film is 2-60 μN/mm. A thickness of the insulation polymer composite is 1-300 μm. The insulation adhesive film material is prepared as follows: after a high molecular polymer, an inorganic filler, a high molecular polymer curing agent, a molding auxiliary agent, and a solvent are mixed, dispersion technologies such as ball milling, sand milling, ultrasound are conducted to prepare an electronic paste of the insulation polymer composite, and the electronic paste is then applied to a surface of a support film material, and bonded with the protective film to form the insulation adhesive film material.

A sodium-free complex silicon salt electrolyte for a storage battery

Silica filler, surface treatment method for silica filler and epoxy resin composite material

【課題】本発明は、シリカをコアとし、重合体で構成される被覆層をシェルとするシェル−コア構造を有するシリカ充填材に関する。【解決手段】本発明のシリカ充填材は、具体的に、シリカの表面に重合体で構成される被覆層を被覆し、該被覆層によって、シリカ充填材とエポキシ樹脂の適合性及び界面結合力を向上させて、エポキシ樹脂複合材の粘度及び熱膨張係数を低下させることができる。【選択図】なし

Calibrating radio frequency power of magnetic resonance imaging system

A method of calibrating a RF power of a magnetic resonance imaging system is provided. With a fixed time-domain length of RF pulses, a RF pulse amplitude having a larger step size increment is selected to perform a traversal scanning to obtain FID signal values corresponding to different RF pulse amplitudes. In subsequent traversal scanning, the step size is continuously scaled down, and a start value and an end value are re-determined to continuously narrow a range for the subsequent traversal scanning, which may quickly and accurately determine a RF pulse amplitude corresponding to a 90° flip angle that can be obtained from a RF pulse amplitude corresponding to a maximum FID signal value in a last traversal scanning. A linear relationship between a flip angle and a RF pulse amplitude is obtained according to the 90° flip angle and its corresponding RF pulse amplitude for calibrating a RF power.

Conserved t-cell receptor sequences

Four unique transcripts have been isolated from the .beta. chain of the T-cell receptor in T-cells in the synovial tissue of a patient with rheumatoid arthritis. Two of these transcripts were isolated from fresh synovial tissue and two were isolated from a T-cell line derived from the synovial tissue The sequences of the four transcripts are highly homologous, with a conserved amino acid sequence of IGO N in the highly diverse V-D junction. The .alpha. chain and the antigenic specificity of the T-cell line derived transcripts has also been characterized.

Radioisotope t1-201 production process

A radioisotope Tl-201 is produced. The process includes electroplating, irradiating, dissolving precipitating, ion exchanging, decaying and filtering. The Tl-201 obtained is a liquid having a high purity.

Through silicon via layout pattern

A semiconductor device comprises a substrate with a first side and a second side, wherein a plurality of active circuits are formed adjacent to the first side of the substrate and a plurality of through silicon vias arranged in a polygon shape and extending from the first side of to the second side, wherein the polygon shape has more than six sides, and wherein each through silicon via is placed at a corresponding apex of the polygon shape.

Method of fabricating radioactive isotope of indium-111

Method and apparatus for managing time series database

A method for managing a time series database, includes: monitoring multiple operations that access the time series database, so as to identify types of the multiple operations, the types of the multiple operations comprising at least one of the query types or insert types; with respect to a storage mode among multiple storage modes, obtaining costs that the multiple operations access the time series database based on the types, respectively; selecting a storage mode with the minimum cost from the multiple storage modes; and during a predetermined time period, storing into the time series database data values that are collected from multiple measurement points according to the selected storage mode. In one embodiment, there is provided an apparatus for managing a time series database. By means of the method and apparatus of the present invention, the storage and query efficiency with respect to the time series database can be increased.

Device and method for detecting defects of high-voltage cable cross-bonded grounding system

Disclosed are a device and method for detecting defects of a high-voltage cable cross-bonded grounding system. The method comprises: selecting a protective grounding box of a cross-bonded grounding system, respectively connecting a signal excitation coupler to A-phase, B-phase and C-phase coaxial cables of the protective grounding box, selecting a stable signal with a frequency different from a power frequency or a field interference frequency, and testing effective current values and phases responded by the A-phase, B-phase and C-phase coaxial cables when the stable signal with the frequency F1 is injected into the A-phase, B-phase and C-phase coaxial cables of the protective grounding box in a coupled manner; and obtaining resistances and inductances of branch circuits of the cable cross-bonded grounding system by calculation according to measurement data, and determining if the cable cross-bonded grounding system has a connection defect.

comprises the steps of preparing a circuit board, forming holes, disposing hole-wall metal layers, increasing the thickness of the metal layers, etching the metal layers, and separating a power LED stand unit

Vegetation Restoration Method for Hydropower Development Area in Dry-hot Valley of Plateau

The present invention discloses a vegetation restoration method for hydropower development area in dry-hot valley of plateau. Based on gravelly ecological conditions in dry-hot valley of southeast Tibet with arid climate, artificial grassland planting and economic fruit forest planting are proposed for vegetation restoration. A combination of Medicago sativa L. and Avena sativa L. is selected for the artificial grassland planting of the present invention, and survival rates of the two plants are high, and current coverage rates are over 90%; Juglans regia L. is selected for the economic fruit forest planting, and the survival rate is above 90%; and a whole pilot area is basically covered with vegetation, and the control effect is good, thus accelerating the vegetation restorations of hydropower station residue fields in ecologically fragile areas.

一种用于建筑工程的桩基钢筋笼防滚架

本实用新型公开了一种用于建筑工程的桩基钢筋笼防滚架，包括底板和电动推杆，所述底板的内部安装有丝杆，且丝杆的中间位置设置有第一弹簧，同时第一弹簧的端头处连接有第一套板，所述第一套板的上表面通过第一转轴连接有支撑杆的一端，且支撑杆的另一端与置物板的底部相互连接，所述丝杆的端头处安装有第二套板，且第二套板的上表面通过连接板连接有挤压件，所述挤压板的表面设置有第二转轴，且挤压板的端头处固定有限位板，所述挤压件的内部设置有置物件，且置物件的内部安装有第二弹簧。该用于建筑工程的桩基钢筋笼防滚架，便于对不同大小的钢筋笼进行固定，并且便于将钢筋笼向外拿取，降低了装置的使用难度。

Ein Verfahren zur Wiederherstellung der Vegetation in einer hochgelegenen Region zur Wasserkraftentwicklung

Die vorliegende Erfindung offenbart ein Verfahren zur Wiederherstellung der Vegetation in hochgelegenen Wasserkraftentwicklungsgebieten, basierend auf den ökologischen Bedingungen der trockenen und warmen Flusstäler in Südosttibet mit vielen Kieselsteinen und trockenem Klima. Sie schlägt eine Technologie zur Anpflanzung von künstlichem Grasland und wirtschaftlichem Fruchtwald für das Schlackenfeld, eine Technologie zur Wiederherstellung der künstlichen Vegetation von Gras-Stauch-Wald in subalpiner Halde und eine Technologie der Grasnarbenverpflanzung sowie der Pflanzung vom künstlichen Grasland in alpiner Kippe. Die vorliegende Erfindung kartiert den aktuellen Zustand natürlicher Umweltelemente, simuliert Bauszenarien, überwacht die dynamischen Veränderungsmerkmale regionaler Umweltelemente, erforscht die Wiederherstellung der Vegetation in hochalpinen Schluchten unter dem Einfluss der Wasserkraftentwicklung, integriert Überwachung und Szenariosimulation und entwickelt gezielte und wissenschaftliche Wiederherstellungstechniken sowie -modelle, um die Lücken in diesem Bereich in alpinen Regionen zu schließen.

Tablet personal computer and antenna module thereof

Wireless communication device and portable electronic device

Coupled moving device of wiper and lamp

Combined platform for testing fireproof materials for cables

A combined platform for testing fireproof materials for cables includes a main frame for providing operating space; an air circulation system including a fresh air supply unit for supplying fresh air into the operating space and an exhaust gas treatment unit for treating the gas in the operating space under set conditions; an open flame system for providing an open flame for testing cables; a water circulation system for supplying water at least to the exhaust gas treatment unit and the operating space; and a control system for collecting at least the temperature and gas concentration in the operating space, and performing process control based on the collected results. The actual working conditions of scenarios such as fire-resistant cable tunnels and fire-resistant cable trenches can be simulated, and multiple tests such as combustion performance test and physical and chemical performance test can be carried out under various working conditions.

Method for making carrier-free radioactive isotopic gallium-67

薄膜トランジスタ、薄膜トランジスタのアクティブ層の製造方法、および表示装置

【課題】金属触媒の拡散を利用してシリコン層を多結晶半導体層に形成しても、金属触媒の濃度差によって多結晶半導体層の半導体特性が低下することを最少化する薄膜トランジスタ、薄膜トランジスタのアクティブ層の製造方法、および表示装置を提供する。 【解決手段】薄膜トランジスタは、基板上に位置する第１多結晶半導体層と、第１多結晶半導体層上に位置する第２多結晶半導体層と、第１多結晶半導体層と隣接して互いに所定の間隔で離隔している金属触媒とを含む。 【選択図】図３

Laser induced breakdown spectrograph having assembly for vibration light path

Laser induced breakdown spectrograph having assembly for vibration light path

非晶質シリコン膜の結晶化方法、また薄膜トランジスタおよびその製造方法

【課題】本発明は非晶質シリコン膜の結晶化方法、またこれを適用した薄膜トランジスタの製造方法およびこれによって製造された薄膜トランジスタに関する。 【解決手段】本発明の実施形態に係る結晶化方法は、非晶質シリコン膜を形成する段階と、非晶質シリコン膜上に互いに離隔するように結晶化触媒粒子を位置させる段階と、非晶質シリコン膜で結晶化触媒粒子を選択的に除去する段階と、非晶質シリコン膜を熱処理によって結晶化する段階とを含む。 【選択図】図１

Electronic device for checking fastening state of screws

An electronic device for checking a fastening state of screws includes a receiving member, a cover, an electric screwdriver, a processor, and a warning unit. The receiving member receives a mountable device. The cover includes a number of screw guiding members, the screw guiding members guides the screws into screw holes on the mountable device. The electric screwdriver fastens the screws into the screw holes on the mountable device. The processor predefines an order of the electric screwdriver fastening the screws in response to operations of an operator; in a process of the electric screwdriver fastening the screws into the screw holes on the mountable device received in the receiving member, checks whether the fastening order is the same as the predefined order; and when the fastening order is not the same as the predefined order, controls the warning unit to output a warning message.

Method for turf transplantation and artificial granssland planting in alpine area soil material field

The present invention discloses a method for turf transplantation and artificial grassland planting in an alpine area soil material field, the method for turf transplantation in the alpine area soil material field includes the following operations: turf stripping, turf stacking, turf stacking maintenance, turf replanting and turf replanting maintenance. According to the present invention, a longest side of a cutting area is not greater than 50 cm, and a shortest side is not less than 25 cm, so as to prevent the turf from dying caused by plant roots cutting due to too small blocks; the stacking space satisfies requirements of no overlapping stacking of turf blocks; and in addition, when transplanting and stacking, it is necessary to completely contact a bottom of the turf with the soil, and the turf can completely turn green and survive after exercise in winter.

Control structure for massage seat of vehicle

Assembly for vibration light path and laser induced breakdown spectrograph having same

Generating gradient signal

Methods of generating a gradient signal, gradient signal generators and magnetic resonance imaging systems are provided. In one aspect, a method includes obtaining a target amplitude and a target duration associated with a target precision corresponding to the gradient signal; generating a first actual amplitude by intercepting the target amplitude according to an actual precision of a DAC; generating a second actual amplitude according to the first actual amplitude, wherein a difference between the second actual amplitude and the first actual amplitude is 1; determining a first actual duration of outputting the first actual amplitude and a second actual duration of outputting the second actual amplitude according to the target amplitude, the target duration, the first actual amplitude and the second actual amplitude; controlling the DAC to output the first actual amplitude according to the first actual duration and output the second actual amplitude according to the second actual duration.

可攜式防入侵警示系統及其方法

本發明係有關於一種可攜式防入侵警示系統及其方法，其係將複數組警示回報裝置設置在環境區域內的複數位置。警示回報裝置包括偵測模組、無線通訊模組、訊號處理模組及供電單元。當有入侵者時，偵測模組產生感測訊號，經訊號處理模組解讀而輸出異常訊號，透過無線通訊模組將異常訊號及識別碼傳輸出去。監控裝置接收異常訊號及識別碼，並依據識別碼而判斷出環境區域被入侵的位置，並由資訊輸出模組輸出入侵位置的資訊或影像。

プラズマ援用加工方法及びプラズマ援用加工装置

【課題】スラリーを用いないドライ研磨法でありながら、ドレッシングしなくても「目つぶれ」や「目詰まり」による研磨速度の低下を防止することができ、加工能率の向上及びコストの低減が可能となる研磨加工方法を提供せんとする。【解決手段】フッ素ラジカル又は酸素ラジカルを加工材料表面に作用させてフッ化又は酸化し、表面改質層を形成する表面改質プロセスと、ビトリファイドボンド砥石又はレジンボンド砥石からなる研磨加工具を用い、表面改質層を除去する研磨プロセスとを有し、表面改質プロセスと研磨プロセスを交互に繰り返し、或いは同時に進行させる過程で、研磨加工具にもフッ素ラジカル又は酸素ラジカルを作用させ、該研磨加工具のボンド材をエッチングして砥粒を露出させつつ、加工材料の表面を加工する。【選択図】図１

可攜式防入侵警示系統及其方法

Structure of foot mat

Method of preparing high thermal-conductivity basis element and high thermal-conductivity basis element

Micro-power wind-solar hybrid energy harvesting and power generating device, and energy harvesting method

A micro-power wind-solar hybrid energy harvesting and power generating device including a solar power generation module, a wind power generation module, a control module, an energy storage module, and an accessory structure are provided. The solar power generation module is mainly composed of a solar thin film cell and a corresponding interface control circuit, and the wind power generation module includes a wind-induced vibration structure, a cantilever beam structure, a piezoelectric element, and a corresponding interface control circuit. The solar thin film cell is mounted at a top of the wind-induced vibration structure, and interface control circuits, the energy storage module, etc. are all arranged inside the wind-induced vibration structure. The control module is configured to handle an energy harvesting and power generating algorithm of the wind-solar hybrid power generating device to maximize the power generation quality and the power generation efficiency of the device.

Generating gradient waveform

Methods of generating a gradient waveform, gradient waveform generators and magnetic resonance imaging systems are provided. In one aspect, a first digital value is obtained by quantizing and coding spatial position information of a voxel of a subject according to the number of preset quantization bits, wherein the number of the quantization bits are more than the number of allowed input bits for a DAC; a second digital value is determined to be inputted into the DAC according to the first digital value and the number of the allowed input bits for the DAC; a quantization error is determined according to the first digital value and the second digital value; an error accumulating value is updated by accumulating the quantization error to the error accumulation value; the second digital value corrected according to the error accumulation value; and the corrected second digital value is inputted into the DAC.

Mobile communication device and radiated power adjusting method thereof

A mobile communication device and a radiated power adjusting method thereof are provided. The mobile communication device includes an antenna, a signal measurement module, a proximity sensing module and a controlling module. The antenna receives a radio-frequency signal, and the signal measurement module is coupled to the antenna and measures a signal parameter of the radio-frequency signal. The proximity sensing module is switched between an activation mode and an original detection mode according to existence of an object, wherein a sensing conductor is configured adjacent to an adjusted antenna. The controlling module is coupled to the signal measurement module and the proximity sensing module, and the controlling module adjusts the radiated power of the adjusted antenna. When the signal parameter decreases more than a threshold value and the proximity sensing module is in the activation mode, the controlling module reduces the radiated power of the adjusted antenna.

Laser induced breakdown spectroscopy sample chamber

Methods and apparatus for laser induced breakdown spectroscopy (LIBS) sample chamber. An apparatus includes a sample chamber, a laser source connected to an excitation optics assembly, the excitation optics assembly connected to a first port on the sample chamber, a collimator assembly connected to a spectrometer, the collimator assembly connected to a second port on the sample chamber, and a first lens tube positioned on the first port and a second lens tube positioned on the second port, the first lens tube protecting the first port connected to the excitation optics assembly and the second lens tube protecting the second port connected to the collimator assembly from particles emitted when a laser pulse from the laser source ablates a surface of a target sample and generates a plasma.

Touch device and control method thereof

A touch device and a control method thereof are provided. In the control method, a sensing signal generated by a sensor is received. When an operating object is present, a touch screen is configured for touchable regions and untouchable regions, wherein the untouchable regions cannot generate a response through a touch by the operating object. A gesture is received on the untouchable regions of the touch screen, a processor determines whether the gesture is conformed to a default gesture setting, and the processor decides whether or not to adjust part or all of the untouchable regions to the touchable regions according to the determining result. Accordingly, the touch device and the control method thereof of the embodiments of the invention can prevent or lower the occurrence of an accidental touch by a user and enhance the operating convenience of the user.

Determining access permission

An access permission level for a first individual may be calculated by utilizing repositories of social network databases. The facial image of a first individual may be captured and compared with a repository of pre-categorized individuals. In response to the facial image of the first individual being absent from the repository of pre-categorized individuals, the repositories of social network databases may be crawled to collect facial images of non-categorized individuals. The first facial image may be compared with the facial images of non-categorized individuals, and a second individual may be identified. In response to identifying, categorization data associated with the second individual may be collected. Utilizing the categorization data, the second individual may be sorted into one of a plurality of categories. Based upon an image match score and the category which the second individual is sorted into, an access permission level may be determined and provided to a user.