55results about How to "Little change in characteristics" patented technology

The invention relates to a drive and temperature control circuit of a quantum cascade laser, which belongs to the technical field of electrons. The drive and temperature control circuit is used for supplying accurate and adjustable pulse width modulation (PWM) drive voltage to the quantum cascade laser and for precisely controlling the working environment temperature of the quantum cascade laser. The drive and temperature control circuit comprises a single chip microprocessor, an adjustable voltage stabilizing source, a temperature control module, a PWM control module and a load protection module. The drive and temperature control circuit is simple in design and convenient to use; the work status of the laser load can be comprehensively monitored, an over-current protection function is realized, high-voltage breakdown is prevented, the pulse width adjustability is good, the pulse width can be minimized to ns grade, adjustable pulse width and adjustable working frequency can be realized, stable working temperature is achieved, and laser generated by the quantum cascade laser which is sensitive to the ambient temperature can be maintained at constant optical wavelength.

An electrophotographic photoreceptor of high durability capable of providing stable excellent electrical characteristics over a prolonged period of time, which electrophotographic photoreceptor excels in mechanical strength. Photosensitive layer (14) of electrophotographic photoreceptor (1) comprises a polyarylate resin having structural units, for example, those of aforementioned formula (1-3) and an enamine compound represented by, for example, aforementioned formula (2-1). By virtue of these, electrophotographic photoreceptor (1) of excellent mechanical strength and favorable electrical characteristics can be realized.

An annular magnetic core that comprises an iron-based nanocrystalline soft-magnetic alloy, some of the iron in which is substituted with nickel and / or cobalt. Said annular magnetic core exhibits a relative AC permeability (μr100k(50)) of at least 4,000 at a frequency of 100 kHz in a 50 A / m applied DC magnetic field, a relative AC permeability (μr100k(150)) of at least 2,500 at a frequency of 100 kHz in a 150 A / m applied DC magnetic field, a maximum permeability (μMax) of at most 8,000 in a 400 A / m applied DC magnetic field, and a magnetic flux density (B400) of at least 1.3 T.

Disclosed is an adhesive composition (I) characterized by containing a polyurethane polyurea resin (A) having a weight average molecular weight of 80,000-250,000 and an acid number of 3-25 mgKOH / g and an epoxy resin (B). The polyurethane polyurea resin (A) is obtained by reacting a urethane prepolymer (d) having an isocyanate group, a polyamino compound (e) and a monoamino compound (f) under the conditions stated below. The urethane prepolymer (d) having an isocyanate group is obtained by reacting a polyol compound (a), an organic diisocyanate (b) and a diol compound (c) having a carboxyl group. (i) The ratio between isocyanate groups of the urethane prepolymer (d) having an isocyanate group and amino groups of the polyamino compound (e) and the monoamino compound (f), namely amino groups / isocyanate groups is from 0.8 / 1 to 0.999 / 1 (molar ratio). (ii) The ratio of amino groups of the polyamino compound (e) in the 100 mol% of the total of the amino groups of the polyamide compound (e) and the amino groups of the monoamino compound (f) is 90.0-97.0 mol%.

PROBLEM TO BE SOLVED: To provide a method for implanting ions into a semiconductor board which method compensates a threshold voltage gap between the central portion and the peripheral portion of the board created, as a result of uniformly implanting ions into the entire surface of the board, and to provide a manufacturing method for a semiconductor element which the manufacturing method improves the nonuniformity of transistor characteristics in the board.

The invention discloses a polymer electrolyte which comprises, as the main component, a block / graft copolymer comprising, as constituent components, polymer blocks (A), (B) and (C) which cause phase-separation from one another, wherein the polymer block (A) comprises a vinyl compound unit as the main repeating unit and has an ion-conductive group, the polymer block (B) comprises a vinyl compound unit capable of forming a flexible phase as the main repeating unit and forms a flexible phase, and the polymer block (C) comprises a styrene derivative unit carrying an alicyclic hydrocarbon group having a polycyclic structure as the main repeating unit and forms a restrained phase; a membrane; a membrane-electrode assembly; and a solid polymer fuel cell. The polymer electrolyte has excellent durability and heat resistance, and shows little change in properties, such as the change in dimension between a dried state and a wet state, the change in mechanical properties and the change in methanolcross-over before and after the immersion in a methanol solution. The polymer electrolyte can be used stably in a solid polymer fuel cell during the long-term operation of the solid polymer fuel celland enables excellent start-up performance of the solid polymer fuel cell.

The invention relates to a characteristic variable dynaic vibration absorber and a characteristic value variable vibration isolator.To solve a problem, for example, in which holding a movable mass becomes difficult because the spring characteristics of a rubber constituting a basis are set low in order to set the characteristic value at a low value. In a first dynamic vibration absorber (10A) including a movable mass that is coupled to a vibration damping target member (12) via an MRE as a first elastic member (18A) having elastic characteristics variable with a magnetic field, and being capable of varying a vibration characteristic value of the movable mass by controlling the magnetic field, the dynamic vibration absorber (10A) has a second elastic member (18B) different from the MRE, and the vibration damping target member and the movable mass are elastically-coupled to each other via the second elastic member(18B).

The embodiment of the invention discloses a feature selection method and device which can select measured target object features in spectral nondestructive testing, and have good robustness and stability. The method comprises: S1, acquiring a spectral data set of a sample; S2, performing a first quantity of sampling on the spectral data set to obtain a first quantity of sample spaces, constructinga partial least square quantitative analysis model by using each sample space, and ranking the features corresponding to the sample space in order of importance based on the partial least square quantitative analysis model; S3, ranking the features corresponding to the first quantity of sample spaces according to an importance ranking result of the features corresponding to the first quantity ofsample spaces to obtain a feature ranking result, determining a feature selection quantity based on the feature ranking result, and using the first feature selection quantity of features as the targetfeatures according to the feature ranking result.

The invention discloses a cloud dust-removal device for a metal mine roadway, including a steel frame structure, ultrasonic atomization nozzles, an inclined strut, a steel bottom plate, a water drainage diverter arranged on the steel bottom plate, a precise water filtering device, an air pressure gauge and a regulating valve thereof, a water flowmeter and a regulating valve thereof, and an air exhaust diverter. The steel frame structure is fixedly connected to the steel bottom plate. One end of the inclined strut is fixedly connected with the steel frame structure, and the other end is fixedlyconnected with the steel bottom plate. The steel frame structure is a gantry frame and is made of U-shaped steel, the opening direction of the U-shaped steel is the same as the air flow direction, the ultrasonic atomization nozzles are fixed to the front side and the left side and the right side of the U-shaped steel, the spraying angle is 80 degrees, the ultrasonic atomization nozzles on the front side directly face the air flow direction for spraying, and the ultrasonic atomization nozzles on the left side and the right side are staggered. By arranging the ultrasonic atomization nozzles with the spraying angle of 80 degrees, the whole roadway section can be filled with dry fog, the contact area between the dry fog and dust particles is fully increased, the dust removal effect is good, and the service life is long.

The present invention provides a driving circuit of a liquid crystal display device, which improves the Vgoff characteristics of the driving circuit composed of 4 thin film transistors and 2 capacitors, and makes the characteristic change of the thin film transistor caused by the DC stress of the driving circuit composed of 6 thin film transistors minimum, so that the operating characteristics are stable. The drive circuit of the liquid crystal display device includes: the first and second transistors are connected in series between the output stage of the n-1 circuit and the Vss stage; the third transistor is driven by a clock signal; the fourth transistor is connected to the drain To the source of the third transistor; the fifth and sixth transistors are connected in series between the VDD terminal and the Vss terminal; the seventh transistor is driven by the output signal of the n+1 circuit; the eighth transistor is driven by the n+ The output signal of the circuit 1 is driven; the first capacitor is formed before the gate of the third transistor; and the second capacitor is formed between the gate and drain of the sixth transistor.

The invention relates to polymer electrolyte membrane, and membrane electrode assembly employing the membrane and solid polymer type fuel cell. A polymer electrolyte membrane comprising as a main ingredient a block copolymer which comprises, as its constituents, a polymer block (A) having as a main unit an aromatic vinyl compound unit and a polymer block (B) forming a flexible phase, and has ion-conducting groups on the polymer block (A), said aromatic vinyl compound unit being such that the hydrogen atom bonded to the alpha-carbon atom is replaced with an alkyl group or an aryl group optionally having substituent(s), and at least one of hydrogen atoms directly bonded to the aromatic ring is replaced with an alkyl group; and a membrane electrode assembly and a polymer electrolyte fuel cell both of which uses it. The polymer block (A) can further have a restraining phase, and / or can be cross-linked. The electrolyte membrane is mild to the environment, has a high ion conductivity and good bonding properties to electrodes, is excellent in moldability, and is not easily influenced by methanol; and displays excellent performance in polymer electrolyte fuel cells, particularly direct methanol fuel cells.

The invention is applied to, for example, a liquid crystal display device with which a driver circuit is integrally formed on an insulating substrate. A reference current II is used to charge a sampling capacitor C3. A gate-to-source voltage Vgs of a transistor Q14 generated by that reference current II is set to the sampling capacitor C3. Thereafter, the voltage Vgs of the sampling capacitor C3 is used to drive and cause the transistor Q14 to function as a constant current circuit.

The invention relates to a toner, a development agent, a toner container, and an image forming apparatus for electrophotography. Provided is a toner that is endurable to an external force, does not disengage with, move or bury an external additive, has excellent heat preservation and fixation performance, can inhibit changes in characteristics such as charge amount, mobility, agglutination degree and inhibit image quality degradation, a development agent using the toner, a development agent container, and an image forming apparatus. The toner is composed of a mother toner particle containing a binder resin and a coloring agent, and an external additive to cover the mother toner particle, wherein the external additive contains a resin particle which has an outer shell layer formed of silica or modified silica; the resin particle has a non-spherical form with a shape factor (SF) of 1.20 or greater as calculated by the following formula (I): Shape factor(SF)=[(Absolute maximum length of particle)2 / Projected area of particle)]([pi] / 4).

A semiconductor device has a semiconductor substrate with a semiconductor layer, a first element region formed on the semiconductor layer and on which are formed first semiconductor elements sensitive to stress, and a second element region formed on the semiconductor layer and on which are formed second semiconductor elements less sensitive to stress than the first semiconductor elements. The first and second element regions are formed in the semiconductor layer at preselected depths from a surface of the semiconductor layer. A buffer region for suppressing stress generated in the first element region is formed of a trench filled with a filler material and extending into the semiconductor layer so that a depth of the trench from the surface of the semiconductor layer is greater than the preselected depths, and so that a portion of the semiconductor layer exists under the filled trench of the buffer region.

A plasma-processing device comprises a constituent member which performs plasma- processing of a noble metal material and a ferroelectric material on a substrate to be processed and is exposed to plasma while being heated. The constituent member is made of an aluminum alloy having an aluminum purity of 99% or higher.

When a semiconductor film is irradiated with conventional pulsed laser light, unevenness, which is called as ridge, is caused on the surface of the semiconductor film. In the case of a top-gate type TFT, element characteristics are changed depending on the ridge. In particular, there is a problem in that variation in the plural thin film transistors electrically connected in parallel with one another. According to the present invention, in manufacturing a circuit including plural thin film transistors, the width LP of a region (not including a microcrystal region) that is melted by irradiating a semiconductor film with light of a continuous wave laser is enlarged, and active layers of a plurality of thin film transistors (that are electrically connected in parallel with one another) are arranged in one region.

A piezoelectric electroacoustic transducer includes a piezoelectric diaphragm having a substantially rectangular shape which vibrates in the thickness direction when an alternating current is applied between electrodes of the piezoelectric diaphragm, a housing which stores the piezoelectric diaphragm, and a pair of terminals formed in the housing by insert molding. One end of each terminal is inserted inside the housing and includes a body portion fixed to the housing and wing portions which extend from both sides of the body portion toward the corners of the housing. The wing portions are not fixed to the housing, and stress-relieving portions are disposed between the body portion and the wing portions so that the wing portions are able to move toward the inside of the housing. Each electrode of the piezoelectric diaphragm is connected to at least one of the wing portions of the terminals by a conductive adhesive.

Disclosed is a polyimide metal laminate wherein a copper foil and a stainless steel foil are formed on respective sides of a polyimide resin, or a stainless steel foil is formed on both sides of the polyimide resin. This polyimide metal laminate is characterized in that the peel strength between the stainless steel foil or copper foil and the polyimide resin is not less than 1.0 kN / m, the peel strength between the stainless steel foil or copper foil and the polyimide resin after thermally treating the polyimide metal laminate at 350 DEG C for 60 minutes is not less than 1.0 kN / m, and no swelling or deformation occurs in the polyimide metal laminate after the 60-minute heat treatment at 350 DEG C.

A columnar vibrator (2) that performs open-ended bending vibration is mounted on one main surface of the mounting substrate (12), and a drive detection circuit is mounted across the abdomen centerline (n2) of the bending vibration caused by the resonance of the mounting substrate (12). Use part (13). In addition, the self-resonant frequency of the flexural vibration of the mounting substrate (12) is lower than that of the vibrator (2), and the self-resonant frequency of the flexural vibration after the vibrator (2) and the drive detection circuit parts (13) are mounted is lower than that of the vibrator (2). The self-resonance frequency of the bending vibration of the monomer is high, and is inconsistent with the bending vibration frequency of the vibrator (2). The present invention provides a vibrating top and an electronic device using the vibrating gyroscope with little change in characteristics between the time of characteristic adjustment before cover mounting and the completion time after cover mounting, although it has a thin mounting substrate and can be reduced in height.

According to the present invention, a surface-coated AlN filler for obtaining a heat-resistant heat dissipation material that is suppressed in deterioration of characteristics such as thermal conductivity due to hydrolysis of the AlN filler surface is obtained, said heat dissipation material being able to be used in a heat dissipation member that requires high thermal conduction characteristics. Asilicone-based hybrid polymer-coated AlN filler according to the present invention is mainly composed of aluminum nitride; and the surface of this filler is coated with a silicone-based hybrid polymer. If 5 g of this filler, which has an average particle diameter of 20-40 [mu]m, is added into 50 mL of an ion exchange water, the electrical conductivity of the water after being held at 121DEG C under saturated water vapor pressure for 50 hours is 350 [mu]S / cm or less.

The invention relates to a thin film preparation technology, in particular to an infrared optical thin film protective film and a preparation method thereof. The infrared optical thin film protective film is characterized in that the protective film is plated on the outer layer of an infrared optical thin film and is organic silicide containing one non-hydrolysis group and one hydrolyzable group at a minimum; in film-plated equipment, the multilayer infrared optical thin film is prepared on a substrate through an electronic gun or an evaporation blocking method, in the same film-plated equipment, the protective film is prepared on the outer layer of the multilayer infrared optical thin film through the evaporation blocking method. The infrared optical thin film protective film and the preparation method thereof have the advantages that the infrared optical thin film can be effectively protected, hardness is high, friction resistance is good, and meanwhile characteristics of the infrared optical thin film are changed slightly; the preparation method is compatible with a preparation method of a conventional infrared optical thin film, the process matching property is good, the film plating temperature is low, and cost is correspondingly lowered.

The invention relates to the technical field of kinetics environment and discloses an all-metal impacting isolation gasket. The all-metal impacting isolation gasket comprises an S-shaped steel belt, and an upper space and a lower space of the S-shaped steel belt are filled with metal rubber rings. Through installation holes each of which is formed in a top-bottom alignment manner are sequentially formed in the S-shaped steel belt. The internal circular gaps of the metal rubber rings correspondingly communicate with the installation holes. The all-metal impacting isolation gasket adopts the composite structure of the S-shaped steel belt and metal rubber to reduce the impacting level, the composite structure is a pure metal product and is suitable for adverse using conditions, the single impacting isolation gasket is small in mass and meanwhile large in structural rigidity, and after being used, the all-metal impacting isolation gasket changes the character of an aircraft little and is good in effect of damping impacting.

A piezoelectric electroacoustic transducer includes a piezoelectric diaphragm having a substantially rectangular shape which vibrates in the thickness direction when an alternating current is applied between electrodes of the piezoelectric diaphragm, a housing which stores the piezoelectric diaphragm, and a pair of terminals formed in the housing by insert molding. One end of each terminal is inserted inside the housing and includes a body portion fixed to the housing and wing portions which extend from both sides of the body portion toward the corners of the housing. The wing portions are not fixed to the housing, and stress-relieving portions are disposed between the body portion and the wing portions so that the wing portions are able to move toward the inside of the housing. Each electrode of the piezoelectric diaphragm is connected to at least one of the wing portions of the terminals by a conductive adhesive.

The invention provides a method, a system and a lens for improving imaging resolution by using a square hole type liquid crystal lens. The system comprises a camera, a glass main lens, the square hole type liquid crystal lens, a polarizing film and a target object, the method comprises the following steps: (1) acquiring an image sequence by utilizing the optical axis movement of the square hole type liquid crystal lens; and (2) obtaining a high-resolution image by using an image reconstruction algorithm based on the image sequence. Compared with the prior art, the super-resolution sampling of the object is realized on the basis of no mechanical movement, the complexity of the system is reduced, the reliability is improved, and the cost is saved. According to the method, the step of image registration is omitted, and the image calculation efficiency is improved while the image reconstruction effect is ensured. Compared with a previous round hole type optical axis movable lens, the square hole type liquid crystal lens used in the invention is more stable, and the characteristic change of the lens is smaller after the optical axis is moved, so that the obtained image sequence is clearer, and the subsequent resolution improvement effect is better.

The invention relates to a fiber cutting machine used for producing staple fibers. In the production of staple fibers, a tow of a plurality of polymeric filaments is cut into short staple fibers in the fiber cutting machine. In the known fiber cutting machines, knives of which have horizontally arranged knife edges, the knife flanks of the knives are arranged parallel to a knife rest axis. When the fiber cutting machine is used, the knife often fractures. The object of the present invention is to provide a fiber cutting machine with a horizontally arranged knife edge, which has a low risk of knife fracture without affecting the performance and the cutting power. This fiber cutting machine is achieved by oblique arrangement of the knife. The knife flank of the knife has a knife angle relative to the knife rest axis. By means of the fiber cutting machine according to the invention, particularly economic production of staple fibers can be realized.

When a semiconductor film is irradiated with conventional pulsed laser light, unevenness called ridges is caused on the surface of the semiconductor film. In the case of a top gate type TFT, the characteristics of the element vary depending on the ridge, specifically, there is a problem of variation among a plurality of thin film transistors electrically connected in parallel with each other. According to the present invention, when manufacturing a circuit including a plurality of thin film transistors, the width LP of the region (excluding the microcrystalline region) melted by irradiating the semiconductor film with continuous wave laser light is increased, and a plurality of thin film transistors ( active layers electrically connected in parallel with each other).

Disclosed is an adhesive composition (I) characterized by containing a polyurethane polyurea resin (A) having a weight average molecular weight of 80,000-250,000 and an acid number of 3-25 mgKOH / g and an epoxy resin (B). The polyurethane polyurea resin (A) is obtained by reacting a urethane prepolymer (d) having an isocyanate group, a polyamino compound (e) and a monoamino compound (f) under the conditions stated below. The urethane prepolymer (d) having an isocyanate group is obtained by reacting a polyol compound (a), an organic diisocyanate (b) and a diol compound (c) having a carboxyl group. (i) The ratio between isocyanate groups of the urethane prepolymer (d) having an isocyanate group and amino groups of the polyamino compound (e) and the monoamino compound (f), namely amino groups / isocyanate groups is from 0.8 / 1 to 0.999 / 1 (molar ratio). (ii) The ratio of amino groups of the polyamino compound (e) in the 100 mol% of the total of the amino groups of the polyamide compound (e) and the amino groups of the monoamino compound (f) is 90.0-97.0 mol%.