meth

Method and apparatus for initializing an RFID tag via an optical display

A method and apparatus for initializing a radio frequency identification tag are disclosed. For example, the method receives an optical signal having a unique identifier and an encryption key from a display by a radio frequency identification repeater associated with the radio frequency identification tag, wherein the radio frequency identification repeater comprises an optical reader. The method then transmits a communication comprising radio frequency identification information associated with the radio frequency identification tag and the unique identifier via the radio frequency identification repeater to a wireless access point, wherein the communication is encrypted using the encryption key.




meth

Method and system to automatically establish NFC link between NFC enabled electronic devices based on proximate distance

Presented is a near field communication system and method to automatically establish an interconnection between two electronic devices. The system includes a first electronic device including an NFC chip communicatively coupled to a passive NFC tag, where the NFC tag having an integrated circuit with a predefined information content, a second device including an active NFC reader configured to read the predefined information content from the NFC tag based on an identification of a proximate distance therebetween, and where the NFC tag is capable of transmitting an activation signal to the NFC chip to enable transition of the NFC chip from a first state to a second state such as to establish a near field wireless communication link between the two devices to enable exchange of digital content therebetween.




meth

Method, system, and apparatus having near field communication (NFC) chip with configurable memory that is updatable via a host processor

A wireless media player and a related system and methodology are disclosed. One aspect of the wireless media player system pertains to a virtual connector system, apparatus, and method for the automatic establishment of wireless connectivity with other electronic devices. In one embodiment, the media player device employs the use of integrated Radio Frequency Identification (RFID) technology to exchange communication settings, media capability, and other parameters with an external device that also has integrated RFID technology. The automatic exchange of settings and other information via a proximity-based RFID data exchange allows a media player to quickly establish a secure communication link with another device via a commonly supported wireless protocol such as Ultra Wideband (UWB) or Bluetooth. Another aspect of the media player system pertains to a method of using the captured media capability of the connecting device to customize certain menu options and software parameters in the media player.




meth

Method and system for locating a wireless access device in a wireless network

A wireless access device in a wireless network, whether a known or unknown entity, can be located using a geolocation system according to the present invention. A signal strength is determined by a wireless intrusion detection system (WIDS) node in a wireless network for each wireless access device that it detects. Based on the signal strength, an approximate distance from the node is determined, which, in one embodiment corresponds to a radius of a circle around the node. To account for error, an approximation band of the circle is calculated that will allow a user to determine the approximate location of the device within the wireless network.




meth

Method of determining a turbulent condition in an aircraft

A method of determining a turbulent condition in an aircraft with a handheld device where the handheld device has at least one of a gyroscope, seismometer, and an accelerometer where the method includes receiving an output from the at least one of the gyroscope, seismometer, and accelerometer while the handheld device is located within the aircraft and providing an indication of a turbulent condition.




meth

Method and device for activating and deactivating a valet parking function

A method and device for activating and deactivating a valet parking function for a motor vehicle is provided. An activated valet parking function prevents access to one or more lockable areas in the motor vehicle. The method including the steps of checking whether a freely operable control element has been actuated. If the actuation of a control element has been detected, the valet parking function is activated to prevent exclusively the access to the lockable area in the motor vehicle, particularly to a trunk.




meth

Method and apparatus for performing quick search of path display terminal

A method and apparatus for performing a quick search of a path display terminal are provided. The quick search device of a path display terminal comprises: a vehicle position display unit for displaying a position of a vehicle on a map generated based on map data; a quick search display unit for displaying a quick search area for inputting a search word in a portion of the map; a search unit for searching for a destination corresponding to the search word; and a path display unit for generating and displaying a path from the vehicle position to the destination.




meth

Configurable light timer and method of receiving data to control the operation of a configurable light timer

A configurable light timer adapted to receive data to control the operation of the configurable light timer is disclosed. The configurable light timer comprises a control circuit; an input portion coupled to receive a portable memory device by way of a connector on the configurable light timer, wherein the portable memory device stores data to be used by the configurable light timer and is adapted to be removed after the data is downloaded; and a memory coupled to receive the data stored on the portable memory device; wherein control circuit accesses the data from the memory after the data is downloaded and the portable memory device is removed. A method of receiving data to control the operation of the configurable light timer is also disclosed.




meth

Life management apparatus and life management method

A fatigue degree input unit inputs a fatigue degree of a user through use of a processing device, and writes an input value of the fatigue degree into a storage device. A recommended duration calculation unit reads the input value of the fatigue degree written by the fatigue degree input unit from the storage device. In accordance with the input value of the fatigue degree read from the storage device, the recommended duration calculation unit calculates a bath duration to be recommended to the user, as a recommended duration, through use of the processing device. A recommended duration informing unit informs the user of the recommended duration calculated by the recommended duration calculation unit, through an output device.




meth

RFID system and method for tracking environmental data

A method and system for tracking a body's bio-readings and environmental information in which such bio-readings are generated is disclosed. Conventional bio-reading sensor technology may be used in combination with technology for receiving information from electronic tags associated with items in a body's environment. Such technology may include RFID smart tags associated with items in an environment. Such smart tags store information describing the item associated with the smart tag. An RFID smart tag reader may be provided for retrieving item description information stored in such smart tags. The combination of bio-reading data and environmental data provide a power tool in evaluating behavioral and environmental variables that affect a body's bio-readings.




meth

Method for operating an automated sample workcell

A method of operating the automated sample workcell for processing one or more biological samples is presented. The method comprises receiving one or more biological samples. Each biological sample is contained in a sample tube. Each sample tube is a tube type. If a test order was received for at least one of the biological samples, the test order being indicative of one or more first processing steps, the workcell can automatically execute the one or more first processing steps. If the test order was not received, one or more second processing steps can be determined based on the tube type of the sample tube that contains the at least one biological sample and the one or more second processing steps can then be executed.




meth

Method for determining the content of hydrogen sulfide in crude and residual oils

The subject of the invention is a method for determining the H2S content arising during the warm storage of sulfur-containing crude and residual oils and mineral distillates containing sulfur-containing crude and/or residual oils, in which a sample of the sulfur-containing mineral oil is dissolved in a solvent or solvent mixture that boils at more than 200° C. and a carrier gas is caused to flow through the solution of the sulfur-containing mineral oil at temperatures above 80° C., and the quantity of hydrogen sulfide carried out with the carrier gas is analyzed quantitatively.




meth

Apparatus and method for dating a body or body sample

A method and apparatus for dating a body sample, such as blood, includes taking at least one spectroscopic measurement of the sample at at least two predetermined positions in the spectrum having spectral characteristics corresponding to at least two predetermined substances present in the sample that have a time varying relationship with each other. A measured relative concentration of each of the predetermined substances is then determined from the measurement, and the measured relative concentrations of the two predetermined substances is compared with a known variation of the relative concentrations of the two predetermined substances over time. A good fit of the measured relative concentrations to the known variation of the relative concentrations is then determined, so as to provide an indication of the age of the sample. Alternatively, instead of measuring the relative concentrations of each of the predetermined substances, the rate of change of the relative concentrations is determined.




meth

Methods and systems for determining the presence or amount of testosterone in a sample

Disclosed are methods and systems for the analysis of testosterone in a sample using supported liquid extraction and liquid chromatography-mass spectrometry.




meth

Method for generation of automated denaturation graphs

A system and method for creating a plurality of denaturation curves is disclosed. In accordance with certain embodiments, one variable, such as salt content, pH or another parameter, is varied to create a plurality of different buffer solutions. Each is then used to create a denaturation graph. The plurality of denaturation graphs allows analysis of the effect of that variable on protein stability.




meth

Analytical methods for analyzing and determining impurities in dianhydrogalactitol

An improved analytical method for analysis of dianhydrogalactitol preparations provides a method for determining the purity of dianhydrogalactitol and detecting impurities in preparations of dianhydrogalactitol, as well as identifying any such impurities. The method employs high performance liquid chromatography (HPLC), in particular, HPLC with evaporative light scattering detection (ELSD); the HPLC can be followed by tandem mass spectroscopy. The method can further comprise the step of performing preparative HPLC collection of at least one specific substance peak present in a preparation of dianhydrogalactitol.




meth

System and method for the analysis of DNA sequences in biological fluids

A method for detecting electromagnetic waves derived from bacterial DNA, comprising extracting and purifying nucleic acids from a sample; diluting the extracted purified nucleic acids in an aqueous solvent; measuring a low frequency electromagnetic emission over time from the diluted extracted purified nucleic acids in an aqueous solvent; performing a signal analysis of the low frequency electromagnetic emission over time; and producing an output, based on the signal analysis, in dependence on the DNA in the sample. The DNA may be extracted from at least one of blood, feces, urine, saliva, tears, seminal fluid, sweat, seminal and vaginal fluids of a patient, or water to determine, e.g., potability. The samples may be frozen. The extracting and purifying may comprise diluting the sample with an aqueous buffer and mixing; degrading proteins in the diluted sample; precipitating DNA from the buffer solution; and resuspending the precipitated DNA in an aqueous solution.




meth

Method of identifying natural substances capable of complexation

The present invention relates to a method of identifying a natural substance that is capable of complexation with Ni2+, Cu2+ and/or Fe2+ ions, wherein an extract containing natural substances is led over a stationary phase loaded with Ni2+, Cu2+ and/or Fe2+ ions, which is suitable for immobilized metal affinity chromatography (IMAC).




meth

Protein renaturation microfluidic devices and methods of making and using the same

Microfluidic devices having a protein renaturation component and methods for using the same are provided. Aspects of the present disclosure include microfluidic devices that include a separation medium with a first flow path and a protein renaturation component in fluid communication with the separation medium and having a second flow path. Also provided are methods of using the devices as well as systems and kits that include the devices. The devices, systems and methods find use in a variety of different applications, including diagnostic and validation assays.




meth

Molecularly imprinted polymer for detecting the pentraxin, and method for preparing same

The present disclosure relates to a molecularly imprinted structure for detection of a pentraxin protein and a method for preparing the same by synthesizing a reactive group-pentraxin protein ligand complex specifically reacting with the pentraxin protein and being polymerizable with a crosslink agent to detect a pentraxin protein by using the complex. The present disclosure also provides a chip for detection of a C-reactive protein and a method for preparing the same, the chip including a molecularly imprinted layer having excellent sensitivity to a C-reactive protein and an improved binding force to a metal substrate by using click chemistry.




meth

Molecularly imprinted polymer sensor systems and related methods

A molecularly imprinted polymer (MIP) sensor including a substrate, two or more electrodes, a conductive layer applied to the substrate and a molecularly imprinted polymer layer applied to the conductive layer is disclosed herein The MIP sensor may form part of an MIP sensor system that can be used to detect and quantify target molecules.




meth

Diabetes-related biomarkers and methods of use thereof

The invention describes biomarkers which can be used to predict the likelihood that an individual will develop Diabetes. The biomarkers can also be used to screen large groups in order to identify individuals at risk of developing Diabetes.




meth

Method of detecting pancreatic disease and pancreas testing kit

A pancreatic disease is tested for with high sensitivity even with simple equipment and a simple procedure. Provided is a method of detecting pancreatic disease including detecting a concentration of S100P in at least one of a pancreatic juice and a body fluid containing pancreatic juice collected from a test subject by immunochromatography. Additionally provided is a pancreas testing kit including an immunochromatography device that holds an anti-S100P antibody and a collection vessel that retains a protease inhibitor that inhibits an activity of a protease contained in the pancreatic juice.




meth

Apparatus and method for measuring concentrations of scale-forming ions

This invention relates to methods and apparatus for determination of ion concentrations, particularly in downhole water from hydrocarbon wells, aquifers etc. It is useful in a wide range of applications, including predicting the formation of scale and fingerprinting waters from different sources. More particularly, the invention relates to the use of ligands whose electronic configuration is altered by the binding of the scaling ions within a water sample. These alterations are detected electrochemically by applying varying potential to electrodes and measuring current flow as potential is varied, from which is derived the concentration of scaling ions in the fluid.




meth

Method for analyzing the liquefied petroleum gas and device thereof

A method for analyzing the liquefied petroleum gas includes the following steps. Provide a sample of the liquefied petroleum gas, and one main component group of the liquefied petroleum gas includes at least one sub component group. Analyze the sample of the liquefied petroleum gas so as to obtain a first measured THC corresponding to the main component group and a second measured THC corresponding to the sub component group. Obtain a regressed THC according to the second measured THC and a predetermined relationship of THC. Obtain a result of THC according to the first measured THC, the regressed THC, and a predetermined range of THC. The predetermined range of THC corresponds to the main component group. The device for analyzing the liquefied petroleum gas includes an inlet, a multiposition valve, a first column, a second column, an analyzing apparatus, and a computing unit.




meth

Two step lateral flow assay methods and devices

A two step lateral flow assay method for identifying IgE antibodies in a sample comprises applying a sample to a sample port of a device, wherein the device is adapted to deliver the sample to a lateral flow matrix having a plurality of IgE antigen species immobilized at respective positions at a first location; allowing the sample to travel along the lateral flow matrix through the immobilized plurality of IgE antigen species to a second location downstream of the first location; and, after a predetermined period of time, applying liquid buffer to the lateral flow matrix to mobilize labeled reagent which is adapted to bind anti-IgE antibody and which is dried on the lateral flow matrix at a location upstream of the sample port delivery of the sample to the lateral flow matrix, and allowing labeled reagent mobilized by the liquid buffer to travel along the lateral flow matrix through the immobilized plurality of IgE antigen species and bind with any IgE antibody bound to the immobilized IgE antigen species, and to travel to a second location downstream of the first location where the mobilized labeled reagent causes a visible change to occur at the second location.




meth

Method for producing molecule immobilizing substrate, and molecule immobilizing substrate

There is disclosed a method for producing a molecule immobilizing substrate, comprising at least the steps of: forming, on a substrate, a monomolecular film including hydroxyl groups, cyano groups, or oxiranyl groups, which are oriented toward an outmost surface of the monomolecular film; andchemically modifying the hydroxyl groups, cyano groups, or oxiranyl groups of the monomolecular film to transform them into carboxyl groups, to thereby form, on the substrate, the monomolecular film including the carboxyl groups, which are oriented toward an outmost surface of the monomolecular film. There can be provided: a method for producing a molecule immobilizing substrate which is free of occurrence of an immobilized-molecule peeling problem in the case of conducting an assay by immobilizing molecules on the substrate.




meth

Method for disabling and re-enabling third-party ads

A method for disabling and re-enabling third-party advertisements is disclosed. An Internet accessible “virtual world” or interactive on-line community can have its advertisements disabled by the entering and subsequent validation of a registration code that is associated with a toy into a website, once validated, displaying a virtual representation of the toy on the website, providing virtual world content so that the virtual representation of the toy is caused to interact with the virtual world content and the toy virtual representations of other users, displaying advertisement on the website in a first mode and allowing customization of the virtual world content including the disabling of advertisements in a second mode. In a similar manner the third party advertisements can be re-enabled.




meth

Biomolecule fixing board and method of manufacturing the same

This invention provides a biomolecule modifying substrate comprising biomolecules selectively fixed to given regions thereon. The biomolecule modifying substrate comprises: a substrate at least comprising a first surface and a second surface; a first linker molecule comprising a hydrocarbon chain and a functional group capable of selectively binding to the first surface at one end of the hydrocarbon chain, which is bound to the first surface via such functional group; a second linker molecule comprising a reactive group capable of binding to the hydrocarbon chain of the first linker molecule, which is bound to the first linker molecule via a bond between the reactive group and the hydrocarbon chain; and a biomolecule bound thereto via the second linker molecule.




meth

Method of analysis for determining a specific protein in blood samples using fluorescence spectrometry

The invention encompasses analyzers and analyzer systems that include a single particle analyzer, methods of using the analyzers and analyzers systems to analyze samples, either for single particles, e.g., protein molecules, or for multiple particles (multiplexing), methods of doing business based on the use of the analyzers or analyzer systems of the system, and electronic media for storing parameters useful in the analyzers and analyzer systems of the invention.




meth

High-temperature furnace, use of a spinel ceramic and method for carrying out T(O)C measurements of samples

The present invention relates to a high-temperature furnace for T(O)C measurement of a sample, which has a furnace housing which bounds a vaporization space and has a sample opening for the dropwise introduction of the sample and at least one flushing opening for introduction of a flushing liquid. According to the invention, the furnace housing is lined with a spinel ceramic on an inner side facing the vaporization space. By means of the spinel ceramic, the vaporization space is lined with a material which allows particularly high temperatures within the vaporization space and thus very complete combustion and is at the same time very resistant to temperature changes. This allows cleaning with a flushing liquid at essentially the operating temperature of the vaporization space and removal of deposited salts, in particular recrystallized organic salts, from the vaporization space in the flushing liquid in dissolved or undissolved form. Aging of the high-temperature furnace by deposited salts can thereby be avoided or at least significantly retarded.




meth

Fluorescent pH detector system and related methods

Fluorescent pH detector and methods for measuring pH using the fluorescent pH detector.




meth

Binding layer and method for its preparation and uses thereof

The invention provides a binding layer comprising a polysaccharide substituted by carboxylic groups or derivatives thereof exhibiting high performance in the binding of ligand molecules and in the interaction thereof with analyte molecules. A method for the preparation of the binding layer and for the assaying of various analyte molecules is also provided.




meth

Antibody-nanoparticle conjugates and methods for making and using such conjugates

Disclosed herein are antibody-nanoparticle conjugates that include two or more nanoparticles (such as gold, palladium, platinum, silver, copper, nickel, cobalt, iridium, or an alloy of two or more thereof) directly linked to an antibody or fragment thereof through a metal-thiol bond. Methods of making the antibody-nanoparticle conjugates disclosed herein include reacting an arylphosphine-nanoparticle composite with a reduced antibody to produce an antibody-nanoparticle conjugate. Also disclosed herein are methods for detecting a target molecule in a sample that include using an antibody-nanoparticle conjugate (such as the antibody-nanoparticle conjugates described herein) and kits for detecting target molecules utilizing the methods disclosed herein.




meth

Method for liberating and detecting nitric oxide from nitrosothiols and iron nitrosyls in blood

Amount of combined nitric oxide or nitric oxide present as iron nitrosyls in a blood sample is determined by directing a low power electromagnetic radiation beam at a blood sample to liberate nitric oxide gas, dissolving the liberated nitric oxide gas and electrochemically detecting amount of dissolved nitric oxide gas.




meth

Method of manufacturing surgical staples

One exemplary process for manufacturing a surgical apparatus may include providing a flat, generally-planar strip of biocompatible material; cutting the strip to produce a feeder belt with at least one lateral edge, and staples affixed to the feeder belt in proximity to at least one lateral edge, where the staples and feeder belt are substantially aligned along a first plane; and bending at least one staple out of the first plane, while the feeder belt remains in the first plane. Another exemplary process for manufacturing a surgical apparatus may include providing a flat, generally-planar strip of biocompatible material; cutting that strip to produce a feeder belt with edges, and staples affixed to different edges of the feeder belt; and coining at least one staple after the cutting.




meth

System and method for manufacturing semiconductor device

According to one embodiment, a system for manufacturing a semiconductor device includes a spontaneous joining unit and a deformative joining unit. The spontaneous joining unit overlaps a first substrate and a second substrate and spontaneously joins mutual center portions of respective joint faces of the first substrate and the second substrate. The deformative joining unit deforms at least one peripheral portion of the respective joint faces of the first substrate and second substrate joined by the spontaneous joining unit toward the other peripheral portion and joins the mutual peripheral portions of the respective joint faces.




meth

Device and method for controlling compression of tissue

A method and device for controlling the compression of tissue include clamping tissue between a first clamping member and a second clamping member by driving at least one of the clamping members with an electric motor toward a predetermined tissue gap between the clamping members and, during the clamping, monitoring a parameter of the electric motor indicative of a clamping force exerted to the tissue by the clamping members. The method and device include, during the clamping, controlling the electric motor, based on the monitored parameter, to limit the clamping force to a predetermined maximum limit.




meth

Device and method for delivering shape-memory staples

An apparatus comprising a plurality of chambers for receiving an associated plurality of staples, each formed with a shape memory that allows the staple to adopt a straightened configuration, when placed in a stapler, and a deployed configuration for suturing when released from the stapler; and a sleeve moveable relative to the chambers between a first position, in which the staples are trapped by the sleeve within the chambers in the straightened configuration, and a second position, whereby the staples are freed to adopt the deployed configuration, wherein the sleeve is adapted to move between the first and second positions by rotating relative to the chambers.




meth

Methods and apparatus having bowstring-like staple delivery to a target tissue

Devices for attaching a sheet-like implant to a target tissue include a sheath and a staple push rod. The sheath has a distal end configured to be pressed against the target tissue. The staple push rod is disposed within at least a portion of the sheath and is slidable relative thereto. The staple push rod includes a pair of stakes. Each stake is dimensioned to abut a surface of a staple to apply pushing forces thereto. The stakes are biased to assume a bow-like shape such that an intermediate portion of a staple extends tautly between the first stake and the second stake when the stakes are extending beyond the distal end of the tubular member. Methods for attaching a sheet-like implant to a target tissue are also disclosed.




meth

Methods and apparatus for fixing sheet-like materials to a target tissue

A device for attaching a sheet-like implant to a target tissue. The device includes a fastener push rod including a first portion, a second portion and a force limiting mechanism operably coupled between the first portion and the second portion. A fastener is carried by the second portion of the fastener push rod. The force limiting mechanism transmits longitudinal movement of the first portion to the second portion while the forces applied to the fastener by the fastener push rod are less than a predetermined value such that longitudinal movement of the first portion of the fastener push rod causes substantially equivalent longitudinal movement of the second portion. The force limiting mechanism allows relative longitudinal motion between the first and second portions while the forces applied to the fastener are equal to or greater than the predetermined value such that the application of undue forces to the fastener is prevented.




meth

Devices and methods for endoluminal plication

Devices and methods are provided for forming and securing a tissue plication. More particularly, the devices and methods of the present invention can be used to create multiple tissue folds on an anterior and posterior wall of a stomach cavity to reduce the volume thereof. In one aspect, a method of acquiring and fixating tissue is disclosed that includes inserting a surgical device having first and second jaws and a tissue acquisition member into a body lumen, positioning the device in a first position in which the jaws extend substantially parallel to a tissue surface, drawing tissue through the jaws by moving the tissue acquisition member away from the jaws, and driving at least one fastener through the tissue disposed between the jaws.




meth

Process for the synthesis of 1-(3,5-bis(trifluoromethyl)phenyl)ethan-1-one

The present invention is concerned with a novel process for the preparation of 1-(3,5-bis(trifluoromethyl)phenyl)ethan-1-one (CAS 30071-93-3). This compound is useful as an intermediate in the synthesis of therapeutic agents.




meth

Chemically-modified peptides, compositions, and methods of production and use

Compositions and methods for inhibiting and controlling the growth of microbes are disclosed. The composition comprises at least one chemically-modified peptide with antimicrobial activity and at least one carrier. The method comprises of administering an amount, effective for the prevention, inhibition and termination of microbial growth for industrial, pharmaceutical, household and personal care use.




meth

Process for preparing methyllithium

Methyllithium is prepared by reacting chloromethane with a dispersion lithium metal in an aromatic organic solvent with methyltetrahydrofuran.




meth

Method for producing Grignard compounds

The invention relates to a process for preparing Grignard compounds of the formula I. The invention additionally relates to compounds of the formula I and to polymer-bound compounds of the formula Ia. The invention further relates to the use of the process for preparing substance libraries and to the use of the compounds of the formulae I and Ia in chemical synthesis.




meth

Fiber-reinforced material composed, at least in a surface region, of a metal/ceramic composite, molding composed of the fiber-reinforced material and method of producing the fiber-reinforced material

A method is provided for producing a fiber-reinforced material which is composed, at least in a region of a surface layer, of a ceramic composite and has carbon-containing fibers reaction-bonded to a matrix containing the elements Si and C. In particular a method of producing fiber-reinforced silicon carbide is provided in which a structure of a matrix contains cracks and/or pores, at least at ambient temperature, because of a high thermal expansion coefficient compared with that of the fibers. Metals are selectively electrodeposited in the open pores and cracks of the matrix and, in particular, in a region of the electrically conductive reinforcing fibers. As a result, the open pores and cracks are filled and, in addition, metallic top layers are optionally formed that are firmly keyed to the ceramic composite and that may serve as an interlayer for glass top layers or ceramic top layers. A fiber-reinforced composite material, as well as moldings, in particular brake discs, brake linings or clutch plates, composed of such a composite material, are also provided.




meth

Method for the production of alkyl lithium compounds by using reduced pressure

Disclosed is a method for producing Alkyllithium compounds by reacting metallic lithium with an Alkyl halide in a solvent. The reaction is performed at a reduced pressure at the boiling point of the solvent.




meth

Alkylborazine compound and production method for the same

In the process of synthesizing alkylborazine compound represented by the chemical formula 2, by a reaction of a halogenated borazine compound represented by the chemical formula 1 with a Grignard reagent, thus synthesized alkylborazine compound is washed with water, or subjected to sublimation purification or distillation purification at least three times, and/or subjected to distillation purification at least twice. In the formulas, R1 independently represents alkyl group; R2 independently represents alkyl group; and X represents halogen atom.




meth

Mask for crystallizing polysilicon and a method for forming thin film transistor using the mask

A mask for forming polysilicon has a first slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width, a second slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width, a third slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width, and a fourth slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width. The slit patterns arranged at the first to fourth slit regions are sequentially enlarged in width in the horizontal direction in multiple proportion to the width d of the slit pattern at the first slit region. The centers of the slit patterns arranged at the first to fourth slit regions in the horizontal direction are placed at the same line. The slit patterns arranged at the respective slit regions in the vertical direction are spaced from each other with a distance of 8*d. Alternatively, the first to fourth slit regions may be arranged in reverse order, or in the vertical direction.