35results about How to "Increase the number of electrons" patented technology

The present invention generally relates to methods and apparatus for the synthesis or preparation of boron-doped single-walled carbon nanotubes (B-SWCNTs). The invention provides a high yield, single step method for producing large quantities of continuous macroscopic carbon fiber from single-wall carbon nanotubes using inexpensive carbon feedstocks wherein the carbon nanotubes are produced by in situ boron substitutional doping. In one embodiment, the nanotubes disclosed are used, singularly or in multiples, in power transmission cables, in solar cells, in batteries, as antennas, as molecular electronics, as probes and manipulators, and in composites. It is another object of this invention to provide macroscopic carbon fiber made by such a method.

An electron beam inspection device observes a sample by irradiating the sample set on a stage with electron beams and detecting the electron beams from the sample. The electron beam inspection device has one electron column which irradiates the sample with the electron beams, and detects the electron beams from the sample. In this one electron column, a plurality of electron beam irradiation detecting systems are formed which each form electron beam paths in which the electron beams with which the sample is irradiated and the electron beams from the sample pass. The electron beam inspection device inspects the sample by simultaneously using a plurality of electron beam irradiation detecting systems and simultaneously irradiating the sample with the plurality of electron beams.

This invention relates to working voltage outer electrode fluorescence light tube, which comprises the following parts: light shell with two sealed ends; fluorescence powder layer located on the inner wall of light shell; outer electrode located on the outer surface of the light tube; discharging gas filled in light tube shell; high second electron eradiation materials medium layer located on both ends of light tube shell. The process method comprises the following steps: taking the tube shell and two covers of both ends; processing high second electron eradiation materials medium layer on the other opening terminal inner surface; sealing the two ends of covers and light tubes; processing the outer electrode on both ends of the light tube shell.

The invention belongs to the technical field of gas sensors, and relates to a gas sensor based on a nickel sulfide nano composite material and a preparation method of the gas sensor. The outer surfaceof a Al2O3 insulating ceramic tube of the sensor and an annular gold electrode are coated with a NiS nano composite material film. The preparation process of the sensor comprises the steps that firstly, Ni(NO3)2 is prepared into NiS nanofibers through a method combining an electrospinning technology and hydrogen sulfide calcination, then a metal compound is prepared into semiconductor metal oxidenanofibers through the electrospinning technology, then NiS and a semiconductor metal oxide nano composite material are mixed, calcined and subjected to solid grinding to prepare a NiS nano compositematerial, finally, the NiS nano composite material is grinded to prepare pasty air-sensitive paste, and the air-sensitive paste is applied on the gas sensor to prepare the gas sensor made from the nickel sulfide nano composite material. The gas sensor has good response performance to ethyl alcohol, high sensitivity, good selectivity, high response and recovery rate and good long-term stability.

The invention relates to a flat-panel display with side-elevation square grid-controlled inverted round table type cathode structure and a manufacturing process thereof, wherein the flat-panel display comprises a sealed vacuum chamber, a side-elevation square grid-controlled inverted round table type cathode structure, an isolated wall, a getter, an anode conducting layer, an anode lead layer, an anode isolated layer and a fluorescent powder layer, wherein the sealed vacuum chamber comprises a cathode panel, an anode panel and a glass frame; the side-elevation square grid-controlled inverted round table type cathode structure is arranged on the cathode panel; the isolated wall and the getter are positioned between the anode panel and the cathode panel; the anode conducting layer, the anode lead layer and the anode isolated layer are arranged on the anode panel, and the fluorescent powder layer is prepared on the upper surface of the anode conducting layer. The flat-panel display has the advantages of low cost, simple manufacturing process and stable and reliable manufacturing process.

The invention relates to an anode catalyst of a direct borohydride fuel cell, a preparation method of the anode catalyst, the direct borohydride fuel cell and the anode catalyst of the direct borohydride fuel cell, the anode catalyst of the direct borohydride fuel cell is LaMgNi series A2B7 type hydrogen storage alloy, the molecular formula of the hydrogen storage alloy is (Mm<1-x>Mgx)Ni2.485Co0.525Mn0.28Al0.21, wherein x=0.1-0.5, and Mm is misch metal which is composed of, by weight, 63.1%of La, 26.0% of Ce, 2.7% of Pr and 8.2% of Nd. The anode catalyst is a La-Mg-Ni series A2B7 type hydrogenstorage alloy, which not only has direct catalytic capability, but also can adsorb (or store) generated hydrogen and release the hydrogen in an electric energy form; the fuel utilization rate is improved through dual action, and the problems that in the prior art, precious metal serving as the anode catalyst is high in price and high in cost performance are solved; and a common hydrogen storage alloy is poor in catalytic activity.

The invention provides a scramjet engine combustion enhancing device based on dielectric barrier discharge. According to the scramjet engine combustion enhancing device based on dielectric barrier discharge, the dielectric barrier discharge is combined with a concave cavity of a scramjet engine, and surface dielectric barrier discharge is achieved by means of a concave cavity step or a metal bottom wall. Partial ionization of a flow field is promoted through dielectric barrier discharge to form plasma, the action area of the plasma and airflow in a combustion chamber is increased, mixing of fuel and the air is hopefully enhanced, the number of active particles in the concave cavity is increased, the chemical reaction path is changed, combustion is effectively enhanced, the combustion efficiency is improved, and the flame stability is improved.

Dielectric layer in material of high secondary electron emission is prepared on inner surface inside glass bulb of luminous tube. Luminescent powder layer is coated on inner wall of the glass bulb. Electrode is setup at two ends of the glass bulb and sealed. One end of the glass bulb is connected to exhaust pipe. After expelling out gas in tube, and filling in a discharge gas, the exhaust pipe is sealed. The disclosed technique is also applicable to gaseous discharge lamps such as hot-cathode fluorescent lamp, cold-cathode fluorescent lamp, energy-saving lamp, outer electrode fluorescent lamp, xenon lamp etc.

The high-efficiency low-voltage external electrode fluorescent lamp (EEFL) for LCD backlight source and illumination comprises: using a slim two-end-opening fluorescent glass tube (2) as main body with fluorescent powder (1) on inner surface and a ceramic tube (5) on inner surface of ends; filling discharge gas (3) in tube (2), setting a couple of metal discharge electrode membranes (4) on outer surface of tube (2) end. Wherein, when manufacturing the lamp, clearing and drying the EEFL, costing fluorescent powder 1 on inner surface, arranging ceramic tube such as alumina ceramic tube 5 on two ends of tube 2; then, sintering and sealing one opening of the tube.

The invention discloses a desulfurizing agent for steelmaking and a production process thereof. The desulfurizing agent is prepared from the following raw materials in parts by weight: 20-30 parts ofa component A, 10-15 parts of a component B, 1-3 parts of sodium dodecyl benzene sulfonate, and 50-80 parts of deionized water; herein, the component A increases the number of electrons in a ferric ion conduction band on the surface of the component A and increases the conductivity of the component A, so that the surface alkalinity of the component A is enhanced, the adsorption capacity of the component A to sulfide is further improved, and a large amount of cuprous chloride and ferric oxide are dispersed on the surface of the component B, so that the component B can well absorb carbon monoxide generated by steelmaking; therefore, the desulfurizing agent prepared by mixing and roasting the component A and the component B has a good desulfurizing effect and a carbon monoxide removing effect, can be used for multiple times, and greatly reduces the steelmaking waste gas treatment cost.

The invention discloses a shadow mask type plasma display panel which is characterized by comprising a front panel (1), a rear panel (3) and a shadow mask (2) clamped between the front panel (1) and the rear panel (3), wherein the front panel (1) comprises a front glass substrate (4), a first electrode (5) positioned at the lower surface of the front glass substrate (4), an insulating medium layer (6) covered on the first electrode (5) and a protecting layer (7) covered on the insulating medium layer (6); the shadow mask (2) is provided with holes, and hole walls are coated with fluorescent powder (8); and the rear panel (3) comprises a rear glass substrate (9), a second electrode (10) and an insulating medium layer (11) covered on the second electrode (10). In the shadow mask type plasmadisplay panel, the working voltage and the power consumption are reduced, and the brightness and the luminous efficiency are improved.

A LED based on dual trap system with charges unbalanced resonance tunnels includes the first and the second couplied traps, one being wide trap and another being active quantum trap. They are coupled via the potential barrier through which to electrons can pass but cavities can not.

The present invention discloses a high precision exposure lamp. The high precision exposure lamp includes an exposure lamp body, a discharge bulb disposed in the exposure lamp body, and a discharge tube disposed in the discharge bulb; solid mercury is encapsulated in the discharge bulb; the discharge bulb has a first lamp leg and a second lamp leg; the discharge tube has a first electrode and a second electrode, and the first electrode and the first electrode are electrically connected to the first lamp leg and the second lamp leg respectively through a mounting handle; and the discharge bulbis filled with helium gas. Through the above design, the high precision exposure lamp has a long service life and can be quickly started.

The invention relates to the technical field of infrared detection, and particularly discloses a photovoltaic mercury cadmium telluride infrared detector and a preparation method thereof. The detector comprises a substrate; a first absorption layer formed on the substrate; a second absorption layer formed on the first absorption layer; a photoelectric gain function layer formed on the second absorption layer; a passivation layer; an upper electrode which covers the upper electrode window; and a lower electrode which covers the lower electrode window. The detector comprises a photoelectric gain functional layer, photogenerated electrons are captured through interface traps, a coulomb field is generated, interface energy band bending is induced, tunneling injection of holes from an external circuit (namely quantum tunneling induced by the interface traps) is enhanced, the number of electrons flowing through the device in unit time is greatly increased, the photoelectric conversion efficiency (EQE) of the device is larger than 100%, and the device sensitivity of the photovoltaic mercury cadmium telluride infrared detector is improved.

The invention discloses an injection printer carbon powder packaging device which structurally comprises a packaging inlet, a working table, a carbon powder packaging device, a conveyor belt, a support frame, a control plate, a conveyor belt outlet and a device base. The working table is arranged at the left end of the packaging inlet; and the control plate is embedded into the front surface of the support frame and is fixedly connected with the support frame through welding. According to the injection printer carbon powder packaging device provided by the invention, a fur block is rotated andrubbed through insulation teeth, so that electrons in the insulation teeth are separated from a track through the external force and are separated from original atoms so as to intrude into other atoms, atoms in the insulation teeth are provided with positive electricity due to the reduction of the electron number, while atoms in the fur block are provided with negative electricity due to the increase of the electron number, the generated electric charge is transmitted to an electrostatic adsorption plate, the electrostatic adsorption plate produces static electricity so as to adsorb carbon dust, the dust is adsorbed and collected so as to be difficult to influence the surrounding environment, and the comfortable and healthy environment is built for the surrounding environment.