433results about How to "Improve electrical stability" patented technology

A dynamic stochastic optimal power flow (DSOPF) control system is described for performing multi-objective optimal control capability in complex electrical power systems. The DSOPF system and method replaces the traditional adaptive critic designs (ACDs) and secondary voltage control, and provides a coordinated AC power flow control solution to the smart grid operation in an environment with high short-term uncertainty and variability. The DSOPF system and method is used to provide nonlinear optimal control, where the control objective is explicitly formulated to incorporate power system economy, stability and security considerations. The system and method dynamically drives a power system to its optimal operating point by continuously adjusting the steady-state set points sent by a traditional optimal power flow algorithm.

Incorporating organophilic clay into hot melt adhesive compositions, particularly those comprising semi-crystalline, thermoplastic polymers, greatly improves the adhesive properties in many respects. Some of these improvements are particularly beneficial to the specific use of hot melt adhesives filled with electrically conductive particles for use as electrically conductive adhesives.

The invention is directed to a foldable electric bicycle with power assist having a front portion attached to a rear portion via a central pivot post. The front portion maintains a steering column, handle bar system and a front wheel assembly having a front wheel and an electric power train. The rear portion includes a rear connecting arm to maintain the rear wheel. The central pivot post includes a first end that connects with the front portion and a second end which connects with the rear portion. A peddle assembly connects below the central pivot post and communicates with the rear wheel through a drive chain. A rechargeable battery capable of providing electricity to the electric power train is shaped to fit within a cavity and is located within the central pivot post. The rechargeable battery is positioned proximate the user so as to vertically align with the user's girth.

The present invention is related to an imidazole ring-containing compound and an organic electroluminescence (EL) display device using the same. In particular, the imidazole ring-containing compound has strong blue luminescence and hole transporting characteristics and may be used as a blue luminescent material and as a host of phosphorescent and fluorescent dopants in various colors such as red, green, blue, and white. In addition, an organic EL display device may be manufactured using the imidazole ring-containing compound of the present invention, which has high-efficiency luminescence characteristics and consumes less power.

A light-emitting device including a semiconductor nanocrystal layer and a method for producing the light-emitting device are provided. The light-emitting device includes a semiconductor nanocrystal layer whose voids are filled with a filling material. According to the light-emitting device, since voids formed between nanocrystal particles of the semiconductor nanocrystal layer are filled with a filling material, the occurrence of a current leakage through the voids is minimized, which enables the device to have extended service life, high luminescence efficiency, and improved stability.

The present invention is related to an imidazole ring-containing compound and an organic electroluminescence (EL) display device using the same. In particular, the imidazole ring-containing compound may be used alone or in combination with a dopant as a material for organic films such as an electroluminescent layer. The organic EL display device using an organic film made of the imidazole ring-containing compound has improved characteristics such as luminance, efficiency, driving voltage, and color purity.

The invention discloses a preparation method of carbon nanotubes / nano ATO (antimony tin oxide) / polypropylene electroconductive fibers. The preparation method comprises the following steps of: (1) mixing nano ATO and carbon nanotubes, placing in an organic solvent together with a dispersant, and carrying out surface treatment to obtain a double-component nano electroconductive agent; (2) mixing the double-component nano electroconductive agent with polypropylene slices, and carrying out melt blending and strip preparation and granulation with a screw extruder to obtain double-component nano electroconductive agent / polypropylene composite electroconductive slices; (3) carrying out melt spinning on the composite electroconductive slices to obtain carbon nanotubes / nano ATO / polypropylene nascent electroconductive fibers; and (4) stretching and shaping the carbon nanotubes / nano ATO / polypropylene nascent electroconductive fibers to obtain the carbon nanotubes / nano ATO / polypropylene electroconductive fibers. By using the preparation method, the filling factor of a filler is increased, the content of an electroconductive filler in the material is reduced, the electric conductivity of the material is improved, and the electric performance stability of the material is simultaneously improved; and the preparation method has low price and no special requirement on equipment, has a economicand simple process route, and is suitable for industrial production.

An electrode substrate comprising; an electrode comprising a compound containing an In atom and a substrate body, wherein a half band width ratio [In3d5 / 2]h / [In3d5 / 2]n is from 0.9 to 1.2 wherein [In3d5 / 2]h is a half band width of a 3d5 / 2 orbit spectral peak of an In atom in the surface of the electrode, and [In3d5 / 2]n is a half band width of a 3d5 / 2 orbit spectral peak of an In atom in the interior of the electrode, the spectral peaks being measured by X-ray photoelectron spectroscopy: and the method for the production thereof.

The invention is directed to a foldable electric bicycle with power assist having a front portion attached to a rear portion via a central pivot post. The front portion maintains a steering column, handle bar system and a front wheel assembly having a front wheel and an electric power train. The rear portion includes a rear connecting arm to maintain the rear wheel. The central pivot post includes a first end that connects with the front portion and a second end which connects with the rear portion. A peddle assembly connects below the central pivot post and communicates with the rear wheel through a drive chain. A rechargeable battery capable of providing electricity to the electric power train is shaped to fit within a cavity and is located within the central pivot post. The rechargeable battery is positioned proximate the user so as to vertically align with the user's girth.

The invention provides a flexible lithium ion battery. The flexible lithium ion battery comprises a flexible battery case and a main battery body arranged inside the flexible battery case, electrolyte is filled in the flexible battery case, and the main battery body comprises a positive electrode plate, a diaphragm and a negative electrode plate which are stacked in sequence. The negative electrode plate is made from one of zinc cobaltate / carbon cloth composite negative electrode material, zinc oxide, tin oxide, ferric oxide and nickel oxide, and the positive electrode plate is made from one of lithium cobaltate, lithium iron phosphate and lithium manganate. The invention also provides a method for preparing the battery. In the invention, the problems that lithium ion batteries in prior arts have poor flexibility, relatively low capacitance, unsatisfactory circularity and poor electric stability are solved. The packaging of the battery is relatively simple, efficient and quick, most raw materials are low in cost, and the battery is suitable for popularization and has high practicability.

When a diagnosis result of an ABS control system is normal, a determination is made as to whether or not to execute ABS control based on a slip ratio of a vehicle wheel, whereupon motor torque control is executed based on an operational state of an ABS. In other words, when ABS control is not executed, the motor-generator is controlled to a regenerative state, and when ABS control is executed, the motor-generator is controlled to a power running state. When the diagnosis result of the ABS control system is abnormal, on the other hand, regenerative braking by the motor-generator is prohibited immediately and the motor-generator is controlled to the power running state.

A subject for the invention is to provide an electrophotographic photoreceptor which has high durability in exposure to ozone, NOx, etc., is excellent in mechanical properties including printing durability, wearing resistance, scratch resistance, and slip properties in repetitions of use, and further has excellent electrophotographic properties. The invention relates to an electrophotographic photoreceptor comprising an electro conductive substrate and at least a photosensitive layer formed thereover, characterized in that the photosensitive layer contains at least a polyarylate resin and an amine compound represented by a specific structure.

Silanylamine-based compounds represented by Formula 1 are provided. Methods of preparing the compounds and organic light emitting devices including organic layers comprising the silanylamine-based compounds are also provided.The silanylamine-based compounds have excellent electrical stability and electron transporting capabilities. Thus, the silanylamine-based compounds may be effectively used for red, green, blue, and white fluorescent and phosphorescent materials used to form hole injection layers, hole transport layers, and emissive layers in organic light emitting devices. Organic light emitting devices using these compounds have high efficiency, low driving voltages, high luminance and long lifetimes.

The invention relates to a process for synthesizing an ionic metal complex represented by the general formula (1) or (5). This process includes reacting in an organic solvent a compound (corresponding to ligand of the complex) represented by the general formula (2) or (6) with a halogen-containing compound represented by the general formula (3) or (4), in the presence of a reaction aid containing an element selected from the group consisting of elements of groups 1-4 and 11-14 of the periodic table. It is possible by this process to easily and efficiently synthesize the ionic metal complex, which can be used as a supporting electrolyte for electrochemical devices, a polymerization catalyst of polyolefins and so forth, or a catalyst for organic synthesis.

A fabricating method of a touch screen panel, a transparent electrode layer and an insulating layer which are sequentially formed on a same surface of a transparent substrate. The transparent electrode layer and the insulating layer are co-patterned using a halftone mask to form a plurality of first sensing patterns connected along a first direction, a plurality of second sensing patterns having separated patterns between the first sensing patterns, and the insulating layer positioned on the first and second sensing patterns to expose regions of the second sensing patterns. A conductive layer is formed on the transparent substrate on which the first and second sensing patterns and the insulating layer are formed. The conductive layer is patterned to form second connection patterns allowing the second sensing patterns to be connected along a second direction through the exposed regions of the second sensing patterns.

An electrical connector includes an insulating body, a plurality of terminals, a plurality of shielding layers, and a plurality of insulating layers. The insulating body has a plurality of terminal-receiving holes. The shielding layers are mounted on the terminal-receiving holes. The insulating layers are mounted on the shielding layers, and the terminals are disposed in the terminal-receiving holes. Thereby, the insulating layers prevent EMI between terminals and ensure the terminals do not contact the shielding layers.

There is provided a particulate conductive filler which comprises a conductive metal coating formed over a coarse carbon-based core such as graphite between 350 and 1000 microns in size. The conductive filler is used in conjunction with a polymer matrix such as an elastomer typified by silicone elastomer to form composite materials for conductive and electromagnetic interference shielding applications.

The invention relates to a novel method for preparing a polyaniline composite conductive fabric. The novel method for preparing a polyaniline composite conductive fabric is characterized in that a conductive fabric with good conductive properties is prepared from a chemical fiber fabric as a matrix material and polyaniline as a conductive material through an in-situ polymerization method (also known as an in-situ adsorption polymerization method). The novel method for preparing a polyaniline composite conductive fabric adopts an ultrasonic dipping treatment process as an auxiliary process of a base fabric dipping process adopting aniline. Therefore, the novel method for preparing a polyaniline composite conductive fabric has good surface modification effects on a base fabric, is beneficial for depositing a conductive material on fiber surfaces of the base fabric in polymerization and enabling the conductive material to permeate into fibers of the base fabric, and improves conductivity and conductive stability. A conductive fabric prepared by the novel method has high conductivity and good environmental stability, is easy for synthesis, and keeps physical and mechanical properties belonging to fabrics on the basis of acquirement of conductive properties, wherein surface resistance R of the conductive fabric is reduced to a value of 1 to 5 kilo-ohm.

The invention relates to an electrically-conducting paint, more specifically to a two-component aqueous polyurethane electrically-conducting paint and its preparation method. The electrically-conducting paint is prepared by the following steps of: firstly, preparing a polypyrrole / attapulgite nanometer conducting composite material; then, dispersing the obtained conducting composite material into an aqueous hydroxyl acrylic emulsion; and finally adding various auxiliary agents and hydrophilic modified polyisocyanates to obtain the two-component aqueous polyurethane electrically-conducting paint. The preparation method provided by the invention has a simple process; in addition, the product has high cost performance and is environmentally friendly.

A transformer and a method of manufacturing the same are disclosed. The transformer comprises a magnetic core, a winding coil with a primary winding coil and a secondary winding coil, a bobbin with a primary input port and a bobbin connecting member, and an insulating slipcase. The bobbin is mounted by the winding coil. The insulating slipcase includes a first opening to receive the magnetic core, the winding coil and the bobbin, and includes a first side wall, a second side wall with a slipcase connecting member which is engaged with the bobbin connecting member, and a secondary output port for dealing with the output of the transformer. The first side wall is opposite to the first opening and has a second opening for the output of the secondary winding coil.

There is provided a connector for an LED module board excellent in assembly, heat dissipation and insulation. The connector for an LED module board for holding and electrically connecting the LED module board includes: a lower cover member on which the LED module board is placed; and an upper cover member having a connection terminal brought into elastic contact with a power supply pad included in the LED module board, wherein at least a portion of the lower cover member at a position of a bottom face of the LED module board is made of a thermally-conductive and insulating material, the upper cover member is structured so that light emitted from the LED module board is directed outward, and the upper cover member is engaged with the lower cover member in a state in which the LED module board is placed on the lower cover member.

The deterioration of the signal characteristic of a differential transmission connector is improved. The connector connected electrically with a plurality of cables each including a pair of signal lines and a pair of drain lines includes a pair of adjacent signal contactors connected with the pair of signal lines of the cable, a ground contactor connected with at least one drain line of the cable, a carrier on which the pair of signal contactors and the ground contactor are alternately arranged on the same plane in a line in the width direction perpendicular to the axial direction of the cable, and a first metal shell covering at least a part of the ground contactor, a part of the signal contactors and a part of the carrier. The connector is characterized in that the first metal shell has at least one ground contactor and a first contact.

A light emitting device includes a light emitting structure including a support structure including a first bulk electrode a second bulk electrode disposed on and electrically connected to the first electrode and the second electrode, respectively. A substrate is disposed adjacent to the support structure, wherein each of the first and second bulk electrodes includes an upper region and a lower region with the upper regions of the first and second bulk electrodes being separated from each other by a first distance. The substrate includes a first interconnection portion and a second interconnection portion electrically connected to the first bulk electrode and the second bulk electrode, respectively, and separated from each other by a second distance. The second distance is greater than the first distance.

A method for manufacturing an interposer substrate includes: forming a conductive portion on a first surface of a semiconductor substrate via a first insulating layer, the conductive portion being formed of a first metal; forming a through hole at a second surface side of the semiconductor substrate located on an opposite side to the first surface so as to expose the first insulating layer; forming a second insulating layer on at least an inner wall surface and a bottom surface of the through hole; exposing the conductive portion by removing portions of the first and second insulating layers using a dry etching method that uses an etching gas containing a fluorine gas, the portions of the first and second insulating layers being located on the bottom surface of the through hole; and forming a conductive layer on the second insulating layer and electrically connecting the conductive layer to the conductive portion, wherein when exposing the conductive portion, forming a tapered portion is performed.

A modifier for polyvinylidene fluoride (PVDF), which improves the adhesion of PVDF to a metal, a binder resin composition for battery and a battery using the PVDF modifier are provided. The modifier for polyvinylidene fluoride herein is a modifier in which the peeling strength of a specific cured film to an aluminium foil is 20 g / cm or more, and the specific cured film is obtained from a mixture of 6 parts by mass of the modifier for polyvinylidene fluoride and 14 parts by mass of a polyvinylidene fluoride composition. The modifier preferably contains a macromonomer copolymer (X), obtained by polymerizing both a macromonomer (A) having unsaturated double bonds and a vinyl monomer (B) having polar groups. The macromonomer (A) is preferably a methacrylic acid ester-based macromonomer (A-1). The vinyl monomer (B) is preferably a methacrylate, and a fluoroalkyl methacrylate.

A touch panel according to the embodiment includes a substrate; a first electrode formed on the substrate in a first direction and including a plurality of sensor parts and connection parts connecting the sensor parts with each other; and a second electrode formed in a second direction crossing the first direction while being insulated from the first electrode and including a plurality of sensor parts and connection parts connecting the sensor parts with each other. The sensor parts and the connection parts include transparent conductive materials, and the connection parts have resistance lower than resistance of the sensor parts in at least one of the first and second electrodes.

Disclosed are: an organic electroluminescent element compound represented by structural formula 1 or 2 below; and an organic electroluminescent element comprising same. In this way, it is possible to provide an organic electroluminescent element compound which can be used as a host, hole-transport material and electron-transport material that has outstanding electrical stability and electron- and hole-transporting ability, a high level of triplet state energy and is able to improve the light-emitting efficiency of phosphorescent light-emitting materials, and an organic electroluminescent element.

The present invention discloses an electronic block with magnetic connection, wherein end portions of the block are provided with cavities, the cavities are embedded with radially magnetized conductive circular magnets, and the circular magnets can freely rotate about their own axes within the cavities to adjust magnetic poles; the surfaces via which each end portion is attached to other end portions are cut with notches, and the circular magnets partially protrude from the notches; the end portion of one block can be attached to and electrically connected with the end portion of any other block via the circular magnets. By adopting radially magnetized and self-rotating magnets, the present invention can realize attachment and electrical connection of any multiple surfaces and multiple angles, not only ensuring close connection between blocks, but also realizing electrical connection of components in the blocks.

This invention relates to antimony-doped multi-elements oxide transparent conductive membrane. On the Zn-Sn-O membrance, antimony doping is proceeded, by using radio-frequency magnetic-control technique, under vacuum condition, to produce Zn-Sn-O:Sb transparent conductive membrane having multi-crystal structure. The ceramic target for sputtering use is composed of zinc oxide stannic oxide, antimony sesquioxide, the prepn. conditions are: argon pressure=0.5-5 Pa, oxygen pressure=0-6 mPa, sputtering power=50-200w, temp.=150-450 deg.C. This inventive complex transparent conductive membrane material has the property of stability in hydrogen plasma like ZnO, and has high electrical stability like SnO2. It has advantages of: no toxicity, broad application field, being substituted for ITO membrane, saving noble metal indium.

A light-emitting device including a semiconductor nanocrystal layer and a method for producing the light-emitting device are provided. The light-emitting device includes a semiconductor nanocrystal layer whose voids are filled with a filling material. According to the light-emitting device, since voids formed between nanocrystal particles of the semiconductor nanocrystal layer are filled with a filling material, the occurrence of a current leakage through the voids is minimized, which enables the device to have extended service life, high luminescence efficiency, and improved stability.