126 results about "Tunnelling effect" patented technology

A hearing aid eartip coupler system and method is disclosed which permits interfacing existing hearing aids with a variety of high performance hearing aid eartips for use by patients with mild to moderate hearing loss. Conventional hearing aid earmolds connected to over-the-ear hearing aids suffer from a high degree of feedback and “tunnel effect” associated with blockage of the ear canal by the earmold, as well as unsightly large eartip tubes. The present invention permits cost-effective over-the-ear hearing aids to be retrofitted with a variety of vented hearing aid eartips and smaller eartip tubes to improve the performance and appearance of the overall hearing aid system for use with patients having mild to moderate hearing loss. Additionally, the use of the disclosed coupler system and method permits replacement and/or resizing of the hearing aid eartip should this portion of the system be deemed unsuitable for use by the patient.

A data line and an amorphous silicon pattern are formed on a substrate. The first electrode pattern is extended from the data line and overlaps an edge of the amorphous silicon pattern. The second electrode pattern is made of the same metal as the first electrode pattern and overlaps the edge of the amorphous silicon pattern at an opposite side of the first electrode pattern. Edges of the first and the second electrode patterns are sharply formed so that a tunneling effect easily occurs through the amorphous silicon pattern. An indium-tin-oxide pattern for a capacitor is formed at the end of the second electrode pattern. The capacitor is formed between the ITO pattern and a common electrode.

An increased area of an element transistor to be evaluated causes an increased leakage current due to a tunnel effect, leading to a reduced accuracy in predicting a TDDB lifetime. A test element group (TEG) 1 is a pattern for evaluating electric characteristics, comprising a plurality of unit transistors T11, T12, T13, T21, T22, T23, T31, T32, T33, which are arranged so as to form a lattice-shaped pattern. Each of the unit transistors comprises a gate dielectric serving as an object to be evaluated, and source region and drain region, which are a short-circuited.

A device and method are provided for producing negatively charged nanoparticles. The device comprises a power supply, an electron supermicroemitter and a controller, the power supply connects with the electron supermicroemitter and the controller respectively. The potential of the electron supermicroemitter to the ground is controlled in the range of −2 kV to −29 kV by the power supply and the controller in accordance with the shape, size and different application of the materials of the emitter, so as to form field electron emitting of tunneling effect. The energy of electrons with high current density produced by the emitter can be adjusted during the electrons' colliding with particles in aerosol such that the electrons are attached to the nanoparticles of different size with wider energy band to form negatively charged nanoparticles.

The invention is a nonvolatile memory cell circuit implemented by standard CMOS process, comprising tunnel transistor, control transistor and readout transistor, where the tunnel transistor and control transistor are both connected in a MOS capacitor form, and both their grids are connected to form a floating grid. And it has a bidirectional Fowler-Nordheim tunneling effect by voltage generation at two ends of the capacitor of the tunnel transistor, thus realizing charge injection and erasion, and obtains the data in the memory cell by reading out the current of the readout transistor controlled by the floating grid.

The invention discloses a method for preparing degradable waterborne polyurethane paint. The method comprises the steps that waterborne polyurethane is modified by nano titanium dioxide, wherein the water resistance, the mechanical property and the like of waterborne polyurethane can be improved through the special characters such as the surface and interface effect, the quantum size effect and the macroscopic quantum tunneling effect of the titanium dioxide particles, and meanwhile attachment of microorganisms to the surface of a coating can be effectively reduced through the antibacterial property of nano titanium dioxide; polylactic acid is connected to the surface of nano titanium dioxide, and then the waterborne polyurethane coating with the biodegradablity is prepared. According to the method, a -NCO terminal is prepared through the connection function of a toluene diisocynate functional group -NCO to be connected with a titanium dioxide-polylactic acid composite coating, the purpose of modifying waterborne polyurethane is achieved, polylactic acid is soft in main chain and can be easily catabolized by microorganisms in the natural world, a decomposition product is free of pollution, and the microorganisms attached to the surface are effectively removed; nano titanium dioxide has the excellent antibacterial and bactericidal characteristics, attachment of fouling organisms is greatly reduced, and the surface cleanliness of the coating is kept.

The invention relates to a multibeam depth measuring sonar multi-subarray wave beam sharpening method. The method comprises the following steps: carrying out orthogonal transformation on original signals received by a transducer array to obtain needed parsing signals; by use of a subarray divider, carrying out subarray division on the obtained parsing signals to divide the signals into four subarrays overlapped in space and divide the subarrays into two sub wave beam groups; carrying out routine wave beam formation on each subarray, and respectively carrying out first-order sharpening wave beam formation on a sub wave beam group A formed by the first subarray and the fourth subarray and a sub wave beam group B formed by the second subarray and the third subarray; and taking output generated after sharpening wave beam formation of the sub wave beam group A and the sub wave beam group B as input of next-order sharpening wave beam formation, carrying out a second-order sharpening wave beam formation, and taking output after the second-order sharpening wave beam formation as sharpening multibeam output. According to the invention, a tunnel effect can be inhibited under the condition of a quite small computation amount.

The invention belongs to the technical field of semiconductor photoelectric detection, and particularly relates to a tunneling photoelectric detector based on a Van der Waals heterojunction and a preparation method of the tunneling photoelectric detector. A metal type two-dimensional material is used as a carrier transport layer; an insulating type two-dimensional material is used as a barrier layer and a tunneling layer; and a semiconductor type two-dimensional material is used as a photoelectric conversion material. The device structure sequentially comprises a substrate (1), a metal type two-dimensional material layer (2), an insulating type two-dimensional material tunneling layer (3), a semiconductor type two-dimensional material light absorption layer (4) and a metal electrode (5) from bottom to top. When the device works, the insulating type two-dimensional material plays a role of the barrier layer in the dark, which improves the potential barrier to prevent electron transmission, and effectively reduces the dark current of the device; under light irradiation, bias voltage is applied to enable the insulating type two-dimensional material layer to generate a tunneling effect, a conduction step of photon-generated carriers is formed, a carrier multiplication effect is generated, and the photocurrent of the device is effectively improved. The device has the characteristicsof high response rate, high detection rate, high optical switch ratio, quick response and the like.

The invention relates to nano carbon selenium-rich composite or mixture fertilizer. The nano carbon selenium-rich composite or mixture fertilizer is prepared from nano carbon, selenium-containing low-valent salt, carbonate nitrogen fertilizer and the like. In order to increase the quantity of selenium-containing low-valent salt absorbed by crops from the soil, unsaturated fatty acid is selected as a mixing agent. In order to increase the absorption amount of the crops for the nitrogen fertilizer, an ammonium stabilizer is added. The weight of the nano carbon is controlled to be less than 100 nanometers, so that the nano carbon has a small-size effect, a large-surface-area effect and a tunnel effect. The nano carbon has a conducting and magnetizing function in the water, the conductivity can be increased by 30 to 50 percent, the ionization of ions of the selenium-containing low-valent salt can be promoted, the activation, absorption and conversion of the selenium-containing low-valent salt ions in the soil can be promoted, and food rich in organic selenium can be produced by virtue of the absorption of plant roots. For example, the selenium content of paddy rice is increased by 3.5 times, the selenium content of wheat is increased by 52 times, the selenium content of soybeans is increased by 37 times, and the selenium content of the corns is increased by 134 times.

The invention relates to a lithium-sulfur cell anode composite material and a preparation method thereof. The lithium-sulfur cell anode composite material is a shell-core structure comprising a Si-O bond-containing conducting polymer as a shell and sulfur in the shell, and the sulfur content is in a range of 10-90wt%. Through the Si-O bond having reception bag functions, the lithium-sulfur cell anode composite material has a strong capability of adsorption and release of lithium polysulfide produced by in cell charging and discharging, can effectively inhibit tunneling effects of lithium polysulfide and can improve cell cycling stability and coulombic efficiency.

The invention discloses a preparation method of a textile waterproofing agent, and belongs to the field of textile waterproofing materials. Nano-silica is modified by coupling agents, owing to small size effects and macroscopic quantum tunneling effects of the nano-silica, fiber breakage can be effectively prevented, the abrasion resistance of a serous membrane is improved, the dispersibility of the nano-silica can be improved, and mallow bark extracting solution is adsorbed by the adsorption performance of the nano-silica. As extracting solution molecules contain much -OH and enter a weave structure of a silk fabric, fibers generate good cohesiveness, and the tensile property and the ultraviolet resistance of the fabric are improved. The preparation method solves the problems of low tensile property and fiber breakage of fabrics due to the fact that waterproofing agents in the present market cannot effectively prevent water.

The invention provides a nonvolatile storage cell array operating method, applied to operating NAND storage cell array, where each storage cell has a charge immersing layer. When operating the array, it uses F-N tunneling effect to erase the whole storage cell array and uses thermal electric hole-injecting effect to code a single bit in a single storage cell. With the F-N tunneling effect, its electron injecting efficiency is high, thus able to reduce the current of the storage cell when erasing and at the same time enhance operating speed. Moreover, the current consumption is low, able to effectively reduce the power loss of the whole chip.

The invention relates to a cluster wind tunnel power tower which is a wind power generation device. According to the device, a static wind area is expanded to form a wind dam to lead natural wind to be clustered into wind tunnel airflow which ascends vertically through the narrow tunnel effect, and kinetic energy of the ascending airflow is accelerated through the chimney tube effect to drive a generator to rotate. The cluster wind tunnel power tower is arranged on the end of a bucket barrel of a cluster dam by a power tower base, and is in a shape of a tower integrally. The power tower is integrated by important components, such as a turbine wheel, a generator, a turbofan centrifugal wheel, a machine barrel and an automatic wind adjusting valve, and the cluster dam is integrated by important components, such as the bucket barrel, a chimney tube, a floating plate and a set wind wall. In a figure, 1 is the turbine wheel, 2 is the generator, 3 is the turbofan centrifugal wheel, 4 is the machine barrel, 5 is the automatic wind adjusting valve, 6 is the bucket barrel, 7 is the chimney tube, 8 is the floating plate, 9 is the set wind wall, 10 is a supporting cylinder, and 11 is a basal body.

The invention provides a low-melting glass powder of crystalline silicon solar energy battery front side silver paste, and the powder is processed from the following substances in percentage by weight: 30-60% of PbO, 10-30% of B2O3, 5-30% of ZnO, 5-14% of SiO2, 0.5-2% of Li2O, 0.5-2% of Ag2O, 1-5% of MgO and 1-10% of ZrO. The preparation method comprises the following steps: 1. weighing materials, and uniformly mixing the materials in a ceramic mortar; 2. pouring the mixed powder into a corundum crucible, covering the crucible with a cover, and placing the crucible into a muffle furnace for fusion at an assigned furnace temperature; 3. carrying out water quenching of the fused glass liquid; 4. carrying out a drying; 5. milling and crushing the glass material after water quenching. The prepared glass powder has a suitable softening temperature, and has a good wetting capability for silver and silicon, simultaneously the glass contains silver oxide, and thereby better conveying and precipitating silver crystal grains in the sintering process, obtaining more contact points, improving the generation probability of tunnel effect, and reducing the contact resistor. Because the lead content is low, corrosion to silicon is reduced and possibility for breakdown of PN junction is effectively decreased, and thereby improving photoelectric conversion efficiency and life of solar energy battery in the prerequisite for guarantying the contact resistor.

The present invention provides a DC/DC communication switch power supply including an EMC restraint loop, a self-start control loop, a +5 voltage main switch loop, a +5 voltage PWM loop, a -5 voltage regulation filtering loop, a +5 voltage filtering loop, a +5 voltage feedback loop, an auxiliary power supply, a protection loop, a -42 voltage PWM loop, a -42 voltage feedback loop, a -42 voltage switch loop and a -42 voltage filtering loop which are positioned on the printed plate; the +5 voltage PWM loop and the -42 voltage PWM loop adopt the automatic control DC/DC converting circuit of the single-terminal normal-shock PWM integrated circuit chip. Said printed plate adopts copper foil lead having a thickness of 0.7MM, and more than 90% of the whole board is covered with the copper foil. Each circuit includes a switch transformer and the heating elements including MOS tube are all positioned on the top of the printed plate; the radiators and transformers of each circuit are distributed in parallel with gap therebetween to generate air flow tunnel effect. The DC/DC communication switch power supply has a high transforming efficiency and a low heat self-productivity.

The invention discloses a solar cell taking a fluorinated graphene film as a high-resistance layer. In the solar cell, the cell structure successively comprises a metal film layer as a back electrode, a back contact layer, an absorbing layer, a window layer, a fluorinated graphene high-resistance layer and a transparent conductive film layer from bottom to top. A fluorinated graphene film the thickness of which is 0.34nm to 20nm replaces a native oxide and is taken as the novel high-resistance layer, atom diffusion between different films can be reduced, the interface property is improved, a cell short circuit caused by a pinhole effect of the window layer film can be prevented, and cell efficiency is further improved. Compared with a traditional high-resistance layer, the thinner fluorinated graphene film is more conductive to a tunneling effect of electrons and transfer and collection of the electrons.

The invention discloses a laser sound conducting method and device, belonging to the technical field of photoelectricity. The invention, based on intra-cavity laser enhancement technique and an optical tunnelling effect, provides a laser sound conducting method and device, wherein the device mainly comprises a high reflectivity mirror, a total reflection prism, a optical gain medium and a pumping source, a flexible deformation body, an photoelectric detector and a signal processing circuit. The method and the device have the advantages of high sensitivity, stable performance and strong environmental adaptability, are expected to be widely applied to the field of traditional sound conducting devices and other fields needing high-sensitivity sound wave measurement.

The present invention relates to a color filter capable of preventing production of current tunneling effect. It is characterized by that its main structure includes a transmission base plate; a black matrix placed on particle upper surface of said black matrix; several color light barries which are fixedly placed on the transmission base plate surface on which the black material is not placed and at least an isolating channel is cut on the black matrix which is not covered with said color light barrier; and a protective layer for covering the periphery of said black materix and said color light barrier.

The invention discloses a free space light beam splitter adjustable in splitting ratio and belongs to the technical field of traditional optics. The free space light beam splitter is composed of four parts: a total-reflection prism a pendulum sheet, a light guiding prism and push-pull devices. A total-reflection surface of the total-reflection prism and the pendulum sheet are utilized to form an optical tunnel effect, light to be split is divided into transmitted light and reflected light based on the light guiding prism, and the push-pull devices control the distance of the optical tunnel so as to realize dynamic adjustment of the splitting ratio between the transmitted light and the reflected light. The free space light beam splitter is simple in principle, large in dynamic adjustment range, easy to realize, and low in dependency on light wave length and polarization state, so that the free space light beam splitter is expected to be widely applied in important fields of traditional optics such as optical detection and optical metering.