242results about How to "Shorten induction time" patented technology

The invention is a medical implantable device which is coated by the method according to the invention. The surface of the substrate used for the implantable device, in the raw condition, following a cleaning regime and physiochemical pretreatments, is coated using a biomimetic process in a supersaturated calcium phosphate solution (SCPS) to obtain the desired coating coverage and morphology maintaining a ratio of calcium to phosphorus pH, as well as solution temperature plays a major role in yielding precipitation of the proper phase of CaP so that composition, morphologies, crystal structures, and solubility characteristics are optimal for the deposition process. The biomimetic coating adds the attribute of osteoconductivity to the implant device. To maximize bone growth, the implant must also induce bone growth, or possess the attribute of osteoinductivity. This attribute is acquired by the use of therapeutic agents, i.e. bone morphogenic proteins (BMP), growth factors, stem cells, etc. The preparation of the SCPS solution is slightly altered so that during the immersion of the implant in the SCPS, the therapeutic agents are co-precipitated and bonded with the CaP directly on the underlying surface of the implant device. A final dipping process into a BMP solution provides an initial burst of cellular activity. For delivering stem and / or progenitor cell, after drying the dipped solution of BMP, the cells are cultured on the surface of the implant.

An organic light emitting display includes a display panel including a plurality of pixels, each of the plurality of pixels including an organic light emitting diode (OLED) and a driving thin film transistor (TFT) to control an emission amount of the OLED, the plurality of pixels connected to respective sensing lines; and at least one sensing unit connected to a corresponding one of the pixels through the respective sensing line, the at least one sensing unit configured to sense an amount of carriers accumulated in a parasitic capacitor of the OLED of the corresponding one of the pixels when a driving current flows in the OLED, the at least one sensing unit thereby sensing a degradation of the OLED.

A sensing apparatus and a scan driving method thereof are provided. The sensing apparatus includes first and second electrodes, a sensing element array, first and second electrode scan driving circuits and a control circuit. The sensing element array outputs at least one first inductive voltage after being touched. The first electrode scan driving circuit sequentially scans and drives the first electrodes, wherein the driven first electrode is set to a high level output state and the first electrode not being driven is set to a low level output state or a grounding state. The second electrode scan driving circuit sequentially scans and drives the second electrodes, wherein the driven second electrode is set to high impedance (input) state, and the second electrode not being driven is set to a low level output state or the grounding state. The control circuit controls the first and second electrode scan driving circuits.

A pixel circuit according to example embodiments includes a scan switch connected between a data line and a first node, a storage capacitor, an organic light emitting diode, a driving transistor connected to a first power voltage and configured to generate a driving current, a first control switch connected between the driving transistor and a second node and configured to be turned on during a first sensing period based on a first control signal, a second control switch connected between the second node and an anode of the organic light emitting diode and configured to be turned on during a second sensing period based on a second control signal, and a sensing switch connected between the data line and the second node and configured to be turned on based on a sensing control signal.

A process for polymerizing polyethylene with chromium-based catalysts wherein one or more supported chromium-based catalysts is mixed with mineral oil to form a slurry and the slurry is then introduced into a polymerization reactor, especially a gas-phase polymerization reactor.

The invention discloses a visual gas hydrate experimental device. The visual gas hydrate experimental device comprises a reactor, a constant-current gas supply system, a constant-current liquid supply system, a temperature control system, a constant-pressure gas exhaust system, a sampling analysis system and a data acquisition and processing system, wherein the reactor is divided into a plurality of sections; each section is provided with a window; a water jacket is arranged on an external wall without the window; a feeding hole is formed at the bottom; the constant-current gas supply system and the constant-current liquid supply system supply gas and a solution to the reactor respectively at a constant speed; the temperature control system controls the gas and the solution which are to be supplied to the reactor and controls a temperature of each water jacket; the constant-pressure gas exhaust system is used for exhausting the gas from the reactor and controlling a pressure in the reactor to be constant; the sampling analysis system takes samples from the interior of the reactor and carries out component analysis; and the data acquisition and processing system acquires the data of the constant-current gas supply system, the constant-current liquid supply system, the reactor and the temperature control system and carries out analysis. By adoption of the scheme, fast and efficient generation of a gas hydrate can be realized, on-line real-time observation of the crystal structure and the appearance of the hydrate in the process of hydrate composition / decomposition can be also realized, and the crystal structure and the appearance of the hydrate are analyzed by image processing software.

The invention relates to a natural gas hydrate, and particularly to an accelerant for strengthening the generation of a gas hydrate. The accelerant for generating the gas hydrate, provided by the invention, is prepared by compounding of a novel anion gemini surfactant and solid activated carbon particles with a strong heat transmission effect at a certain mass ratio; a liquid mixture is formed after the high-speed mechanical agitation and the ultrasonic dispersion are conducted on the reagent, and the essence is that solid particles with a high heat-conducting property are wrapped in the gemini surfactant, so that nanometer solid particles cannot be agglomerated easily, and the mixing solution with uniformly dispersed solutes is formed, and the mixing solution is free of sediment; the application temperature ranges from 0 DEG C to 10 DEG C, the pressure ranges from 0 MPa to 12 MPa, and the time of hydrate generation induction period ranges from 1 min to 3 min; compared with the pure water system, the generation speed rate of the hydrate is increased by 140%-200%.

A memory cell array is physically divided into an even number of sectors, with each pair of sectors sharing read circuitry. The outputs of the shared read circuitry are commonly connected to form data lines spanning the height of the array, which are input to global sense amplifiers. A two-stage sensing scheme is employed, with first stage and global sense amplifiers. The driving capability of the first stage sense amplifier can be used to decrease the time to charge or discharge the data lines, which reduces the total signal development time and consequently improves read performance. Granularity of the array can be adjusted by dividing groups and sub-groups of memory cells within a sector accordingly. In a read operation, the bit line in the opposite sector at the same column location is used as reference bit line, which greatly improves matching of bit line loading for the sensing.

The invention relates to a gas hydrate, in particular to a compound gas hydrate generation accelerant and a preparation method thereof. The accelerant is a mixed solution formed by dissolving nano dispersed particles and a gemini surfactant in water, wherein the nano dispersed particles are nano graphene particles, the purity degree (the mass fraction) of the nano dispersed particles is 99%, and the fineness of the nano dispersed particles ranges from 20 nm to 60 nm; the gemini surfactant adopts dimethylene-1,2-double (dodecyl dimethyl ammonium bromide)-C12-2-122Br-1; by taking the mixed solution as the total amount, in the prepared mixed solution, the concentration of the nano graphene particles is controlled from 0.08% to 1.2%, the concentration of the gemini surfactant is controlled from 0.03% to 0.1%, and the balance is water. The accelerant can be used to enhance the gas hydrate from the two processes of heat transmission and mass transfer in the generation process of the gas hydrate, reduces the induction time for gas hydrate generation, and improves generation efficiency of the gas hydrate; a nanofluid is more stable and has low possibility of coagulation under the compound condition of the nano dispersed particles and the gemini surfactant.

The disclosure provides a method and apparatus for forming gas hydrates from a two-phase mixture of water and a hydrate forming gas. The two-phase mixture is created in a mixing zone which may be wholly included within the body of a spray nozzle. The two-phase mixture is subsequently sprayed into a reaction zone, where the reaction zone is under pressure and temperature conditions suitable for formation of the gas hydrate. The reaction zone pressure is less than the mixing zone pressure so that expansion of the hydrate-forming gas in the mixture provides a degree of cooling by the Joule-Thompson effect and provides more intimate mixing between the water and the hydrate-forming gas. The result of the process is the formation of gas hydrates continuously and with a greatly reduced induction time. An apparatus for conduct of the method is further provided.

The present disclosure is related to a touch sensing system and a display apparatus decreasing a sensing time and enabling an effective touch sensing, although a number of sensing electrodes increases according to an increase of an area of a touch panel.

A sensing apparatus and a scan driving method thereof are provided. The sensing apparatus includes first and second electrodes, a sensing element array, first and second electrode scan driving circuits and a control circuit. The sensing element array outputs at least one first inductive voltage after being touched. The first electrode scan driving circuit sequentially scans and drives the first electrodes, wherein the driven first electrode is set to a high level output state and the first electrode not being driven is set to a low level output state or a grounding state. The second electrode scan driving circuit sequentially scans and drives the second electrodes, wherein the driven second electrode is set to high impedance (input) state, and the second electrode not being driven is set to a low level output state or the grounding state. The control circuit controls the first and second electrode scan driving circuits.

A design of cognitive radio (CR) signal structure which based on the spectral correlation can be used for active sensing. In this signal structure, the known pilots used for the primary users (PUs) are duplicated and reallocated in the CR transmission signal properly. With this CR signal structure, the received signal of spectrum sensors will become correlated on the subcarriers when PU reoccupation occurs while the CR transmission is active, and thus PU activities can easily be detected by computing the spectral correlation function. As compare with the traditional cyclostationary feature detection scheme, this method can enhance the active sensing performance while remaining the service quality of the CR system, achieving better detection performance in the same detection time, reducing sensing time (about 1 / 10 of the traditional sensing time), and still reaching the satisfactory outcome even in the circumstances of low SNR and SINR.

The present invention generally relates to compositions, methods, and systems relating to controlled crystallization and / or nucleation of a molecular species. In some embodiments, the crystallization and / or nucleation of the molecular species may be controlled by tuning the surface chemistry and / or the morphology of a crystallization substrate. In some embodiments, the molecular species is a small organic molecule (e.g., pharmaceutically active agent).

An organic light emitting display and a method of compensating for a threshold voltage thereof are disclosed. The organic light emitting display includes a display panel including a plurality of pixels, a gate driving circuit generating first and second threshold voltage sensing gate pulses, a data driving circuit which supplies a threshold voltage sensing data voltage to the pixels in response to the first threshold voltage sensing gate pulse and detects a source voltage of a driving thin film transistor (TFT) of each pixel as a sensing voltage in response to the second threshold voltage sensing gate pulse, and a timing controller which modulates input digital video data for the image display based on a change in the sensing voltage and generates digital compensation data.

The present disclosure provides a display device. The display device may comprise a display panel including a plurality of pixels, a reference current source providing a reference current, and a source drive IC including sensing units for sampling a signal input from the pixel through a sensing line and an ADC connected to the sensing units and obtaining sensing data related to a driving of the pixel. The source drive IC may further comprise a switch array connecting the sensing lines and the sensing units, and the switch array in each sensing unit may comprise a first switch for connecting a corresponding sensing unit to a first sensing line corresponding to the corresponding sensing unit and a second switch for connecting the corresponding sensing unit to a second sensing line adjacent and previous to the first sensing line or the reference current source.

A sense amplifier circuit includes a current sense amplifier, a voltage sense amplifier, and an output stabilizing circuit. The current sense amplifier amplifies differential input currents to generate differential output voltages and provides the differential output voltages to a sense amplifier output line pair. The voltage sense amplifier is coupled to the sense amplifier output line pair to amplify the differential output voltages on the sense amplifier output line pair. The voltage sense amplifier is activated at the time later than a time of activation of the current sense amplifier. The output stabilizing circuit is coupled to the sense amplifier output line pair to stabilize the differential output voltages on the sense amplifier output line pair. The output stabilizing circuit has a positive input resistance. Accordingly, the sense amplifier circuit reduces power consumption and an occupied area on a semiconductor chip.

A resistance sensing mechanism including a resistance adjusting unit including a holder frame, a locating sleeve disposed above the holder frame, an adjustment screw rod rotatably inserted through the locating sleeve and a screw nut threaded onto the adjustment screw rod and pivotally connected to the holder frame, and a sensor unit including a first linkage pivotally connected with one end to the screw nut, a second linkage having one end pivotally connected to an opposite end of the first linkage and an opposite end pivotally connected to the locating sleeve, a sensor mounted at one of the first and second linkages and a sensible member mounted at the other of the first and second linkages to face toward the sensor. Subject to the linkage relationship between the first and second linkages, the distance between the sensor and the sensible member can be changed, thereby generating a relative sensing signal.

The invention provides a preparation method of a degradable gas hydrate efficient accelerant. The accelerant is prepared by three substances including rhamnolipid, sodium carbonate (NaCO3) and sodium chloride (NaCl) according to a certain ratio. The using mass concentration of the accelerant is 0.05-2%. The preparation method can be applied to generation acceleration research of the gas hydrate, greenhouse gas collection such as CO2 by a hydration method and fields such as gas hydrate separation technology. The preparation method is processed in a high-pressure reactor; the gas is provided by a high-pressure gas cylinder; the gas is introduced into the reactor by a pneumatic booster pump; the temperature and the pressure are displayed by a transmitter; and the reaction situation is recorded in real time by a data acquisition system through a camera. As a degradable biological surfactant used for the accelerant is very environment-friendly, the accelerant does not influence the environment and is low in cost, low in dosage, good in the acceleration effect, and beneficial to hydrate industrial production.

A process for polymerizing polyethylene with chromium-based catalysts wherein one or more supported chromium-based catalysts is mixed with mineral oil to form a slurry and the slurry is then introduced into a polymerization reactor, especially a gas-phase polymerization reactor.

The invention relates to a continuous preparation method for spray strengthening hydrate. Some water is compensated in reactor so that decompressed steam enters into the reactor and water is atomized and enters into the reactor after water is compressed. The temperature in hydrate preparation process is controlled in the combination of inner cooling and outer cooling. The continuous preparation device for spray strengthening hydrate comprises air supply system, water flow atomization system and refrigeration system, reactor with partition cooling channel and chilled water circulating system. Air source is connected with buffering tank, filter, decompressed controlling valve, pressure gauge and air inlet on the reactor by valve. A vacuum pump is set between the controlling valve and the air inlet. Water source is connected with pressing pump, outer cooler, pressure gauge, thermometer and atomizing nozzle. The outer cooler is connected with the refrigeration system. Refrigerant compensation and refrigeration system and refrigerant circulating pump are connected with chilled water inlet on the reactor. The system can realize continuous and quick preparation for hydrate and shorten induction time for hydration reaction.

The invention relates to a preparation method of a zeolite molecular sieve monolith with a composite pore structure, which mainly solves the problem that a composite-pore molecular sieve which has both mesopores (or macropores) and a zeolite pore wall is difficult to obtain in the prior art. The zeolite molecular sieve monolith with bicontinuous macropores and three-dimensional communicated mesoporous paths is prepared from a macroporous silicagel monolith used as a substrate by using a method of in-situ carbonizing protection or secondary carbon addition by using carbon sources and then vapor-phase crystallization. The molecular sieve with excellent diffusivity has important application prospect in fields of catalysis, absorption, separation and the like.

A tissue culture method for quickly reproducing the red cactus includes such steps as disinfecting the tender leaf of red cactus, pretreating in the pretreating liquid containing BA and 2,4-D, cutting to become blocks, inductive culture in the improved MS culture medium to induce calli, differentiating adventitious buds in the improved diferential culture medium, culturing the rooted aseptic seedlings in the improved reproductive culture medium, naturalizing, and transplanting them in pots.

The invention discloses a cultivating method of the isolated microspores of brassica napus, which aims to solve the drawback of embryo index unavailable in prior art that, the production of microspore embryos can not be judged in the early stage. The invention is characterized in that, a whole filtered and sterilized NLN-13 hormone-free liquid culture medium comprising 45 to 55 mg / L colchicine is added to the prepared isolated microspores of brassica napus; the microspores are cultured in dark under a high temperature raging from 30 deg C to 35 deg C for two days; the materials having the microspore swell ratio large than 50% are chosen for subsequent induction culture. The cultivating method has the advantages that, the microspores having the microspore swell ratio large than 50% are chosen for subsequent induction culture, so the early rejection of the microspores that cannot produce embryos is facilitated; the workload is greatly reduced; the induction efficiency is improved, and the waste of time and resources is avoided.

The invention concerns aspergillus niger 9891 CGMCC NOú‘0991, which produces alantin endonuclease, and clones alantin endonuclease gene. The result of target gene fragment sequence analysis indicates that open reading frame of gene not containing signal peptide is 1485bp, and codes 509 amino acid, the said protein molecular weight is 55.9KD. The homolog of said gene with counterpart of aspergillus niger (Ohtak.et alú¼ 1998)and Aspergillus ficuum(Uhmú¼t.ú¼et alú¼1998) are respectively 92úÑ and 95úÑ. The alantin endonuclease gene is inserted into Pichia pastoris expression vector, thus recombinant of transformed Pichia pastoris is obtained. The said gene expresses in Pichia pastoris, and expressed product has its function. The expression amount of good recombinant I3-50 is 84 times higher than alantin endonuclease of initial strain. Recombinant yeast is induced and fermented. The analysis about recombinant enzyme shows that its optimum PH is 5.5ú¼ and optimum reaction temperature is 55íµ..

A method for forming a semiconductor device includes forming a plurality of drain contact holes in a first interlayer insulating layer provided over a semiconductor substrate. First metal material having a predetermined thickness is formed over the first interlayer insulating layer, the first metal material filling the drain contact holes. A first metal layer is formed by patterning the first metal material, the first metal layer having a plurality of lines of a first type and a plurality of landing pads. A second interlayer insulating layer is formed over the patterned first metal material. A plurality of trenches is formed in the second interlayer insulating layer, the trenches exposing the landing pads. A second metal layer is formed by providing second metal material over the second interlayer insulating layer and filling the trenches, the second metal layer including a plurality of lines of a second type defined within the trenches, the lines of the second type contacting the landing pads. The first and second metal layers define a first metal level of the semiconductor device. The lines of the first type define odd-number lines of the first metal level, and the lines of the second type define even-number lines of the first metal level.

A semiconductor memory device is capable of swiftly sensing data loaded on local I / O lines and transferring the sensed data to a global I / O line, thereby reducing an operating time of a sense amplifier by increasing the sensing and amplifying speed. The semiconductor memory device includes a sense amplifying unit, a precharging unit, a charge sharing unit, and a driving unit. The sense amplifying unit amplifies data applied to a first data line in response to an I / O strobe signal. The precharging unit precharges an output unit of the sense amplifying unit in response to a precharge signal. The charge sharing unit performs a charge sharing operation between the first data line and the output unit before a sense amplifying operation of the sense amplifying unit. The driving unit drives a second data line in response to an output signal of the sense amplifying unit.

The invention provides a method for promoting growth of a gas hydrate. According to the method, a gas is blown into a gas hydrate promoter solution; and at the temperature of 0-20 DEG C and at the pressure of 0-15 MPa, stirring is carried out at the rotating speed of 400-600r / min so as to obtain a gas hydrate, wherein the gas hydrate promoter solution is an aqueous solution of an amphoteric perfluoroalkyl ether betaine surfactant with the concentration being 100-1,000 ppm. By the method for promoting growth of the gas hydrate, nucleation and clustering of the gas hydrate can effectively be promoted, and induction time is shortened. In addition, surface tension of the gas hydrate is reduced remarkably, reaction time is shortened, production cost is low, and the promotion effect is more excellent.