184results about How to "Short build time" patented technology

A radiant heating for heating the building material in a laser sintering device and a laser sintering device having such a radiant heating are described. The radiant heating has a sheet-like heat radiating element (113, 213, 313), which is characterized in that it is made of a material, that has a low thermal inertia with a thermal diffusivity of preferably more than 1.5·10⁻⁴ m²/s and preferably has a thickness of 2 mm or less.

The invention discloses a full-firing-direction autonomous reentry guidance method based on a three-dimensional reentry trajectory analytical solution. The full-firing-direction autonomous reentry guidance method comprises the following steps of 1, building of a kinematical equation and a dynamical equation, 2, summarizing of the reentry guidance method, 3, descent stage guidance strategies, 4, steady gliding stage guidance strategies and 5 height-adjustment stage guidance strategies. The full-firing-direction autonomous reentry guidance method has the advantages that reentry guidance of an aircraft with the large lift-drag ratio can be guided effectively, low-damping and long-period trajectory oscillation caused by the high lift-drag ratio can be restrained effectively, the peak value ofthe heat flux density is reduced, and tracking of a reference track is facilitated; inertia force caused by earth rotation and actual aerodynamic force are combined into equivalent aerodynamic force,an equivalent aerodynamic section is planned through the analytical solution, and thus the aircraft has the omni-directional reentry task processing capability; and an equivalent aerodynamic section fitting formula based on the inverse proportional function is put forward, the reentry trajectory analytical solution based on the complex equivalent aerodynamic section form is further deduced, and thus high precision, all-dimensional applicability and high robustness are achieved.

An interconnect as a switch module (“ICAS” module) comprising n port groups, each port group comprising n−1 interfaces, and an interconnecting network implementing a full mesh topology where each port group comprising a plurality of interfaces each connects an interface of one of the other port groups, respectively. The ICAS module may be optically or electrically implemented. According to the embodiments, the ICAS module may be used to construct a stackable switching device and a multi-unit switching device, to replace a data center fabric switch, and to build a new, high-efficient, and cost-effective data center.

The invention discloses a system and a method for testing the reliability of an electric spindle in a machining center. The method comprises the following steps of: 1, establishing the system for testing the reliability of the electric spindle in the machining center; 2, determining test environment and test time; 3, performing a function test on the electric spindle to remove early failures; 4, acquiring the performance parameter of the electric spindle in a stable state and determining a failure criterion; and 5, circularly machining a typical workpiece, monitoring the state and performance parameter of the electric spindle and judging the failures. The system comprises a temperature sensor, a noise sensor, a force sensor, an eddy current displacement sensor, a vibration sensor, and a control unit connected with the parts. The system has the advantages of simple and compact structure, low cost, simple principle, convenience of operation, high test accuracy and the like.

The invention discloses an SIP (Session Initiation Protocol)-based regional ground-to-air radio station voice networking system which comprises a plurality of ground-to-air radio stations and also comprises a tandem scheduling server, an SIP (Session Initiation Protocol) radio station voice communication terminal and a networking node network element device, wherein the networking node network element device is connected between the tandem scheduling server and the SIP (Session Initiation Protocol) radio station voice communication terminal and connected with the ground-to-air radio stations.The SIP (Session Initiation Protocol)-based regional ground-to-air radio station voice networking system can realizes integration with a ground-to-air data link system and can realize goal-oriented ground-to-air voice command which is compatible and coordinated with ground-to-air data link system; and a commander can synchronously obtain the voice command control capacity when seeing a target. Moreover, a communication link for directly implementing the voice command control on first-line task aircrafts is provided for a remote high-level command center within shorter setup time and in more flexible setup mode so that commands of chief executives can reach the first-line aircrafts immediately and the effect that a link can be uses as long as set up is achieved.

The flow sensor serves to measure an electrically conductive fluid flowing in a pipe. It comprises a flow tube designed to be inserted into the pipe for conducting the fluid, the flow tube being electrically nonconductive at least on a fluid-contacting inner side, an electrode arrangement consisting of at least two measuring electrodes disposed on the flow tube for picking up a voltage induced in the fluid, and a magnetic field system likewise disposed on the flow tube. The magnetic field system comprises at least two saddle-shaped field coils for producing a magnetic field cutting the fluid during operation of the flow sensor, a respective ferromagnetic pole piece for each of the two field coils, as well as at least one ferromagnetic return path extending around the flow tube upstream of the two field coils and at least one ferromagnetic return path extending around the flow tube downstream of the two field coils for directing the magnetic field around the flow tube. The pole pieces are magnetically coupled to the return paths by means of ferromagnetic coupling elements. Each of the, preferably identically shaped, coupling elements has at least one essentially trough-shaped cover segment which receives a first winding section of the respective associated field coil, lying essentially on a first periphery of the flow tube, or a second winding section of the associated field coil, lying essentially on a second periphery of the flow tube.

First, a set of seed images that tally with each other are prepared (S101). Next, a set of threshold matrices are created from the set of seed images (S102) Next, a plurality of tally images are created from an input gray-scale image by using the set of threshold matrices (S103). The tally images are combined, whereby the confidential image is decoded.

The invention provides a resource reservation protocol-traffic engineering (RSVP-TE)-based resource reservation method capable of allocating priorities to services requiring connection and processing according to the priority, namely a priority-based inter-domain resource reservation method, which is applied to an all-optical network with a multi-layer multi-domain control sub-network. The technical key points are that different priorities are allocated to the services requiring connection, and a resource reservation process is completed by two steps of temporary reservation and definite reservation. The method has lower service blocking rate than a forward reservation protocol (FRP), has shorter service connection establishing time than a backward reservation protocol (BRP), greatly optimizes network performance, overcomes the defect that the conventional resource reservation methods cannot adapt to the multi-layer multi-domain optical network environment, and effectively establishesLSP in the multi-layer multi-domain network with wavelength conversion capacity. Meanwhile, service priority differentiation is supported, and the service with higher priority request the resource reservation in priority; and the method meets the requirement of development of future ASON networks.

The invention designs a method for loading nano-silver on active carbon fiber through an electrochemical deposition method. In the method, a silver ion is absorbed by the absorption capacity of active carbon fiber, and is reduced to silver element by a cathodic reduction method; and nano-silver is directly fixed on the surface of the active carbon fiber while the nano-silver is generated by controlling operation condition. The method is applicable to various conductive active carbon fiber materials with fast preparation speed; the obtained nano-silver is firmly combined with the active carbon fiber with even particle diameter; and the product can be used in drinking water purification, medical sanitation and other fields.

The invention relates to a method for the fast establishment of DSE and plant symbiotic culture system and the application of the method, in particular to a method for the fast establishment of dark septate endophytes and plant symbiotic culture system and the application of the method, belonging to the field of applied microbiology, plant nutrition and ecology. The invention is characterized in that, based on the biological characteristics of DSE of wide carbon utilization and aerobe, riversand with good air permeability is used as the solid substrate; improved MS culture medium is added as the nutrient solution, and early nutritional growth requirements for the formation of DSE-plant symbiotic system are satisfied; the invention utilizes plant seedlings and DSE as materials; by inoculating DSE and plant seedlings on an aseptic culture medium, symbiotic relationship is formed. The method of the invention has the advantages of short setup time of the DSE and plant symbiotic culture system, high efficiency and other excellences; the invention can be applied to the study of the relationship between DSE and plants, the study of DSE morphology, the initial detection of suspected DSE bacterial strains and the application of DSE inoculation.

The invention discloses a modern arch type bamboo bridge. The modern arch type bamboo bridge is characterized by comprising bamboo arch ribs, bamboo beams, diagonal bracings, bamboo panels and steel shoes, wherein the bamboo arch ribs, the bamboo beams, the diagonal bracings and the bamboo panels are made of reconsolidated bamboo materials; the steel shoes are made of steel materials. The invention further discloses a construction method of the modern arch type bamboo bridge. The construction method of the modern arch type bamboo bridge is characterized in that the bamboo arch ribs, the bamboo beams, the diagonal bracings, the bamboo panels and the steel shoes are prefabricated, installation of the steel shoes and a bridge abutment skewback is finished, then installation of the bamboo arch ribs and the steel shoes is finished, the bridge abutment skewback is poured, and finally the bamboo beams, the diagonal bracings and the bamboo panels are installed. The construction method of the modern arch type bamboo bridge has the advantages that the manufacturing process is simple, the cost is low, factorization and standardization of structural components are good, the assembly degree is high, the building time is short, the structural intensity is high, rigidity is large, ductility is good, and the seismic performance is good, and the obtained arch type bamboo bridge has the effects of being environmentally friendly and low in carbon.

A construction method of dynamic interactive enterprise financial module based on complete information, build up basic information supporting system according to the beginning financial data, fixed ratio relationship and approximate operating constant of applicable enterprise; combined external predictive data with internal predictive data, use accounting principles , mathematical knowledge, logical thinking, function relation, time relation and operating constant factor to design form and content of corporation financing, main business, cost control, capital management and financial statements five sub-module. And it provides operating method of dynamic interactive enterprise financial module based on complete information. The invention is of short module construction time, simple in operation, a single operational level, can integrated with abstract means, rapidly,comprehensively and effectively simulate,plan and evaluate future specific business of enterprise.

A system for forming high quality silicon material, e.g., polysilicon. In a specific embodiment, the melted material comprises a silicon material and an impurity, e.g., phosphorous species. The system includes a crucible having an interior region. In a specific embodiment, the crucible is made of a suitable material such as a quartz material or others. The quartz material is capable of withstanding a temperature of at least 1400 Degrees Celsius for processing silicon. In a specific embodiment, the crucible is configured in an upright position and has an open region to expose a melted material. In a specific embodiment, the present system has an energy source. Such energy source may be an arc heater or other suitable heating device, including multiple heating devices, which may be the same or different. The arc heater is configured above the open region and spaced by a gap between the exposed melted material and a muzzle region of the arc heater to cause formation of a determined temperature profile within a vicinity of a center region of the exposed melted material while maintaining outer regions of the melted material at a temperature below a melting point of the quartz material of the crucible. In a specific embodiment, the system produces a melted material comprising a resulting phosphorous species of 0.1 ppm and less, which is purified silicon.

In described examples of a measurement circuit to measure a drain voltage of a drain terminal (106) of the high voltage transistor (M0) during switching, the measurement circuit includes an attenuatorcircuit (102) to generate an attenuator output signal (VDCLAMP) representing a voltage across the high voltage transistor (M0) when the high voltage transistor (M0) is turned on, and a differential amplifier (124) to provide an amplified sense voltage signal (VO) according to the attenuator output signal (VDCLAMP). The attenuator circuit (102) includes a clamp transistor (M1) coupled with the drain terminal (106) of the high voltage transistor (M0) to provide a sense signal (VSENSE) to a first internal node (110), a resistive voltage divider circuit (116) to provide the attenuator output signal (VDCLAMP) based on the sense signal (VSENSE), and a first clamp circuit (Z1) to limit the sense signal voltage (VSENSE) when the high voltage transistor (M0) is turned off.

The invention relates to a three-particle cooperative optimization method applied to speaker recognition, which is an optimization design method for a vector quantization speaker codebook model and comprises the following steps: dividing an initial population of six particles into two sub-populations, wherein each particle represents a codebook and each sub-population consists of three particles named three-particle; adopting different particle update parameters by two three-particles so as to realize global exploration and local exploration; executing updating of speed and position of PSO and operation of an LBG algorithm with an iteration number of three by the particles in each iteration; when the iterations reach mixing update times, mixing and dividing the particles into new three-particles to realize global information exchange and cooperative evolution; when a condition of the maximum iteration number of the initial population is met, selecting two particles from the two three-particles to continue searching until the maximum iteration number of the elite particles is achieved; and using the optimized one as the speaker codebook model. The three-particle cooperative optimization method applied to the speaker recognition better solves the problem that an initial codebook influences the optimization result, and obviously improves the performance of short-voice speaker recognition.

The dynamic interaction-type enterprise financial module constitution method based public information includes: constitute a basic information support system according to the financial data suitable to enterprise opening to the public, fixed ratio relation and approximate operation constant; constitute an external prediction and budget information system according to relative information of external personnel and organizations of the enterprise; design the form and content of main form of the enterprise financial module by using accounting principle, mathematics general knowledge, logic thinking, function relation, ratio relation, time relation and approximate operation constant, determine the formula relationship of all data of the form itself and between one another to form a dynamic inter-action type enterprise financial module. The method for operating the module is also disclosed. Advantage: short constitution time, simple and independent operation.

The invention relates to a pharmacy picking device (1) comprising a housing (10) with a plurality of shelf bases (11) disposed one above the other, at least one operating device (12), a conveyor device (14), a housing-coupling interface (15), and a universal supply-and-control module (20). This universal supply-and-control module (20) comprises a feed device (21), an identification and measurement device (22), operator input/output devices (23), an electronic controller (24) and a voltage supply assembly (25), as well as a housing-coupling interface (15) and an electrical interface (27), said supply-and-control module (20) being arranged adjacent to the housing (10) such that a mechanical coupling is produced by said housing-coupling interface (15) and module-coupling interface (26), in such a manner that drug packages in or on the supply-and-control module (20), which are to be deposited, are delivered to a position on the conveyor device (14) which is known to the electronic controller.

The invention relates to a mine anti-explosion trapezoidal sealing wall and a construction method thereof. The mine anti-explosion trapezoidal sealing wall is suitable for the situation that when heat power disasters such as an explosion and a fire occur in a roadway, a traditional sealing wall is too late to be built or a mine with large gas emission quantity. A top plate and a bottom late of the roadway are at the top end and the bottom end correspondingly, and the roadway wall is on the two sides; metal anchor nets are arranged on surrounding rock through expansion bolts, the two metal anchor nets are mutually connected through iron wires; sealing cloths are arranged on the inner sides of the metal anchor nets and connected with the metal anchor nets through iron wires; filling body materials are injected into a cavity formed by the sealing cloths and the surrounding rock through a grouting hole, and the sealing wall is formed after filling; the grouting hole is connected with a filling device through a grouting pipe; and a pouring pipe made of a fire preventing and extinguishing material and penetrating through the wall is reserved in the middle of the sealing wall, and a water draining pipe penetrating through the wall is reserved at the bottom of the sealing wall.

The invention provides a CMOS (Complementary Metal-Oxide-Semiconductor) operation amplifier with great direct-current open-loop voltage gain. The CMOS operation amplifier comprises a first transistor M0, a second transistor M1, a third transistor M2, a fifth transistor M5, a sixth transistor M6, a seventh transistor M7, an eighth transistor M8, a ninth transistor M9, a tenth transistor M10, an eleventh transistor M11, a twelfth transistor M12, a thirteenth transistor M13, a fourteenth transistor M14, a fifteenth transistor M15, a sixteenth transistor M16, a seventeenth transistor M17 and an eighteenth transistor M18. A feedback loop is formed by the operation amplifier through the transistors M13-M18. Compared with a traditional folding common-source and common-gate amplifier, the CMOS operation amplifier has the advantages of high DC open-loop voltage gain, wide unit gain band width, short built-up time and less power consumption.

The invention discloses a full-integration UHF-RFID reader-writer radio frequency reception front end circuit working in 860-960MHz, consisting of four-input cross coupled difference low noise amplifier LNA, an I path lower mixer DM1, a Q path lower mixer DM2, a I path low-pass filter LPF1, a Q path low-pass filter LPF2 and an orthogonal upper mixer, wherein the orthogonal upper mixer comprises an I path upper mixer UM1, a Q path upper mixer UM2 and a summator ADDER. The invention mixes carrier leakage and label signals downwardly to low frequency, and the label signals are removed through the low-pass filter to maintain direct current; the direct current is converted to a carrier frequency band through the upper mixer; the carrier frequency band and the label signal containing the carrier leakage go through the difference low noise amplifier, and the carrier leakage signal is offset and the label signal is amplified. In the 10 dBm carrier leakage situation, the conversion gain in the working frequency band of 860-960MHz is higher than 26dB, the noise coefficient is smaller than 24dB, the sensitivity is superior to -86dBm, the time consumed by the carrier for offset is smaller than 15Mus, and all requirements for communication speed of the UHF RFID are satisfied.