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35results about How to "Increased means of control" patented technology

High density methods for producing diode-pumped micro lasers

A miniaturized laser package is provided comprising a standard semiconductor laser package modified to accept a solid state microchip assembly pumped by the diode laser. Standard packages described in the invention include TO and HHL packages all of which are characterized by small dimensions, well sealed housing, robust mounting features, known characterized materials and economical production and assembly techniques characteristic of the semiconductor processing industry. In particular, the microchip lasers are produced using high density techniques that lend themselves to mass production, resulting in very low unit costs. At the same time, the compact laser devices provide a solution to the problem of providing laser radiation at high beam quality and good reliability features with a variety of wavelengths and operational characteristics and low noise features not available from diode lasers yet relying primarily on standardized designs, materials and techniques common to diode laser manufacturing. The devices constructed according to methods taught by the invention can therefore be readily integrated into numerous applications where power, reliability and performance are at a premium but low cost is essential, eventually replacing diode lasers in many existing systems but also enabling many new commercial, biomedical, scientific and military systems.
Owner:SNAKE CREEK LASERS

Methods and devices for controlling active power flow in a three-phase modular multilevel converter

InactiveUS20160139578A1Reducing active power flowEliminating active power flowMechanical power/torque controlActive power filteringActive power filterEngineering
The invention relates to methods and devices for controlling unbalanced active power flow in a three-phase modular multilevel converter 20. The converter 20 comprises a first and second converter 4, 5 both comprising three phase legs arranged in a wye-connection. The first and second converters 4, 5 are interconnected in a double-wye connection, and their neutral paths are independently floating. The method 200 comprises: detecting an active power flow in the phase legs; determining a zero-sequence voltage, the determination providing magnitude and phase of the zero-sequence voltage; re-computing the magnitude of the zero-sequence voltage while keeping the phase of the zero-sequence voltage fixed, the magnitude being re-computed with the requirement that the resulting voltage over the phase legs is smaller than or equal to a maximum allowed leg voltage, the re-computed magnitude and the phase giving a re-computed zero-sequence voltage; imposing the re-computed zero-sequence voltage on the neutral point of the first and second converters, thereby reducing the active power flow determining remaining active power based on the re-computed magnitude of the zero-sequence voltage; determining a DC current giving a product with a DC voltage of the first and second converters 4, 5 that will counteract remaining active power; and imposing the DC current on the phase legs.
Owner:ABB (SCHWEIZ) AG

CO shift process matched with synthesis of methanol

The invention relates to a CO shift process matched with synthesis of methanol. The CO shift process is characterized by comprising the following steps: raw gas firstly enters a low-pressure steam generator for cooling and is subjected to liquid separation to adjust water-gas ratio; the raw gas subjected to liquid separation is divided into two paths, wherein one path accounts for 45 to 55 percentto serve as non-transforming gas, and the rest is used as a second path, is subjected to temperature improvement and detoxification in sequence, is divided again and then enters a gas-cooled converter and an isothermal transformation furnace which are arranged in parallel for isothermal transformation respectively; heat is recovered, subsequently the transformed gas is mixed with the first path of non-transforming gas to serve as synthesis gas; the mole ratio of H2 to CO in the synthesis gas is controlled at 2.1 to 2.3. According to the CO shift process disclosed by the invention, byproductsof medium pressure saturated steam and low pressure overheat stream are generated; the gas-cooled converter uses the transforming gas as a refrigerant; by multiple times of dividing conversions, the CO shift process has the advantages of short flow, small size of the converter, no over-temperature risk, adjustable heat exchange area of the used isothermal transformation furnace, small pressure fluctuation of the byproduct medium pressure steam and more stable system operation.
Owner:SINOPEC NINGBO ENG +2

Iron ore tunnel kiln magnetizing roasting layering material distributing reduction method

ActiveCN105274324APrevent overreductionIncreased means of controlPush outIronstone
The invention discloses an iron ore tunnel kiln magnetizing roasting layering material distributing reduction method. Iron ore is divided into different granularity degrees according to the granularity range; the reduction coal is flatly laid in the bottom of a tunnel kiln car according to the proportion that the reduction coal accounts for 4-6% of the total weight of iron ore; the iron ore of various granularity degrees is laid at the upper portion of the reduction coal of the tunnel kiln car, and the granularity range of each layer of iron ore is gradually increased from the bottom layer to the top layer in a layer-by-layer manner; facing materials are flatly laid at the upper portion of iron ore of various granularity degrees of the tunnel kiln car; the tunnel kiln car loaded with materials is pushed into a tunnel kiln for magnetizing roasting; and after magnetizing roasting is finished, the tunnel kiln car loaded with the materials is pushed out of the tunnel kiln. According to the method, over reduction of iron ore can be effectively prevented, the control means of iron ore magnetizing roasting is improved, and the surplus carbon recycling and utilizing cost is low. In addition, the mixing technology of iron ore and a reducing agent before magnetizing roasting of the iron ore tunnel kiln is reduced or eliminated, and the production cost of the roasted ore is reduced.
Owner:GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD

Industry-user-oriented mobile communication network privacy protection method and system

ActiveCN111385794AAddress the need for privacy protectionAvoid the barrel effectSecurity arrangementData transmissionPrivacy protection
The invention relates to the technical field of wireless communication, and discloses an industry-user-oriented mobile communication network privacy protection method and an industry-user-oriented mobile communication network privacy protection system. According to the industry-user-oriented mobile communication network privacy protection method, information of users is classified, thus, omnibearing privacy protection enhancement is carried out on industry applications from three aspects of management, control and users; the management layer protects a user network identity and resource configuration, a control layer protects related processes of user network access authentication; and the user layer protects a user data communication address, a data transmission channel and data network storage; privacy protection of management information, control information and user data information of industry users is realized; and a privacy protection framework and a systematic process for industry application are provided to prevent harm and risks, unified privacy protection is carried out, wooden barrel effect or fragile points are avoided, and privacy and sensitive data cannot be leaked or utilized when a mobile communication network is used in the vertical industry.
Owner:NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP +2

Method for controlling precipitates and impurities in twin-roll thin-strip casting process of non-oriented silicon steel

ActiveCN104226954AAvoid complex precipitationRealize flexible controlCooling chamberGrain growth
The invention belongs to the technical field of metallurgy, aims at the problem of not having a proper method for controlling precipitates and impurities in the process of producing non-oriented silicon steel in a twin-roll thin-strip casting manner, and provides a method for controlling the precipitates and impurities in the twin-roll strip casting process of non-oriented silicon steel. The method comprises the following steps of solidifying and forming molten non-oriented silicon steel by a twin-roll thin-strip casting machine so as to obtain cast strips with a thickness of 2.0-2.6 mm; taking the cast strips out of rolls, feeding the cast strips in a secondary cooling zone after casting, and slowly cooling the cast strips in a slow cooling chamber; feeding the cast strips into a tertiary cooling zone for fast cooling; cooling and coiling the cast strips which are subjected to the fast cooling by the tertiary cooling zone, and then obtaining non-oriented silicon steel cast strips. By utilization of the method, AlN precipitates in the cast strips reach a level of 0.5-2.0 microns, and the precipitation of MnS is obviously inhibited, so that the influence of the AlN and MnS precipitates on recrystallized grain growth and magnetic domain-wall movement is essentially eliminated, and a basis is laid for developing high-quality non-oriented silicon steel.
Owner:NORTHEASTERN UNIV

Surface temperature measuring device for electron beam fuse wire additive manufacturing part and measuring method of surface temperature measuring device

The invention discloses a surface temperature measuring device for an electron beam fuse wire additive manufacturing part and a measuring method of the surface temperature measuring device. The surface temperature of the formed part can be detected more simply and conveniently, so that the measuring operation is prevented from being influenced by splashing, stacking height and the movement of a workbench during a surface temperature measuring process. The measuring method is contact type temperature measurement, and the temperature of the forming surface can be measured; a metal steam protection baffle can prevent metal steam from polluting a temperature measuring couple and prevent metal steam from polluting a baffle hinge, so that the device can be effective for a long time; a spring anda pressure-sensitive element are fed into the temperature measuring couple, so that hard collision between a thermocouple and a formed base body is effectively prevented, the service life is prolonged, and control means are increased; and the device can control a forming temperature field to tend to be consistent together with a machining program, so that the forming process is more stable, and the forming appearance quality and the internal structure and performance are greatly improved.
Owner:浙江智熔增材制造技术有限公司

Method and system for remote control of electronic equipment, mobile terminal, and electronic equipment

The invention is suitable for the technical field of communication, and provides a method and a system for remotely controlling electronic equipment, a mobile terminal and the electronic equipment. The method comprises the following steps that the mobile terminal generates a control message for remotely controlling the electronic equipment according to user operation; the mobile terminal encrypts the control message by a remote control key stored in a local terminal; the mobile terminal encapsulates the encrypted control message in an MQTT (Message Queuing Telemetry Transport) message; and the mobile terminal sends the MQTT message including the control message to an information push server, wherein the control message carries an ID (identification) of the electronic equipment, so that the information push server transfers the control message to the electronic equipment corresponding to the ID according to the ID of the electronic equipment. By aid of the MQTT frame, the complexity of the system frame is reduced, and the development cycle is shortened; and by using the message PUSH mechanism, the server expense is reduced, the bandwidth is saved, the terminal power consumption is reduced, and the remote control function is conveniently expanded.
Owner:TCL CORPORATION

A method for iron ore tunnel kiln magnetization roasting layered distribution reduction method

ActiveCN105274324BPrevent restoreAvoid overreductionTunnel kilnIronstone
The invention discloses an iron ore tunnel kiln magnetizing roasting layering material distributing reduction method. Iron ore is divided into different granularity degrees according to the granularity range; the reduction coal is flatly laid in the bottom of a tunnel kiln car according to the proportion that the reduction coal accounts for 4-6% of the total weight of iron ore; the iron ore of various granularity degrees is laid at the upper portion of the reduction coal of the tunnel kiln car, and the granularity range of each layer of iron ore is gradually increased from the bottom layer to the top layer in a layer-by-layer manner; facing materials are flatly laid at the upper portion of iron ore of various granularity degrees of the tunnel kiln car; the tunnel kiln car loaded with materials is pushed into a tunnel kiln for magnetizing roasting; and after magnetizing roasting is finished, the tunnel kiln car loaded with the materials is pushed out of the tunnel kiln. According to the method, over reduction of iron ore can be effectively prevented, the control means of iron ore magnetizing roasting is improved, and the surplus carbon recycling and utilizing cost is low. In addition, the mixing technology of iron ore and a reducing agent before magnetizing roasting of the iron ore tunnel kiln is reduced or eliminated, and the production cost of the roasted ore is reduced.
Owner:GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD

Intelligent assembly and maintenance work vehicle for high-speed EMU

The invention discloses an intelligent assembly and maintenance operation vehicle for China railway high-speed. The intelligent assembly and maintenance operation vehicle comprises a vehicle body, wherein a roller shutter door is arranged at the upper part of the vehicle body; two fixed plates are symmetrically arranged on two sides of the roller shutter door; a guiding groove of the roller shutter door is formed in the inner side of each fixed plate; rollers are arranged on the inner side of each guiding groove; an alarm light is mounted outside the fixed plate on the right side; a foldable support is mounted on the platform of the vehicle body; a sleeve selector is arranged at the right side of the foldable support; a first threading hole is formed beside the sleeve selector; a digital display wrench, a constant-moment wrench and an electric wrench are arranged in front of the sleeve selector; a card reader is further arranged in the front of the foldable support; a keyboard and a mouse are placed in a drawer of the vehicle body; an uninterruptible power supply is mounted in the front half part of the interior of the vehicle body; and a second threading hole is formed below an electric switch. The intelligent assembly and maintenance operation vehicle has the error-proof, missing-proof and re-tightening-proof functions, relieves the labor intensity of workers, realizes real-time recording, inquiry and tracking of assembly data and improves the working efficiency and the assembly quality.
Owner:SHANGDONG TONGLIDA INTELLIGENT MACHINERY

Surface temperature measuring device and method for electronic beam fuse additive manufacturing parts

The surface temperature measuring device and its measuring method for electron beam fuse additive manufacturing parts described in the present invention can detect the surface temperature of formed parts more simply and conveniently, so as to avoid splashing and stacking height when measuring the surface temperature. , the influence of workbench movement; The measurement method of the present invention is contact temperature measurement, can measure the temperature of forming surface; Metal vapor protection baffle can prevent the pollution of metal vapor to thermocouple, prevent metal vapor from contaminating the baffle at the same time The pollution of the hinge makes the device effective for a long time; the thermocouple is fed with springs and pressure-sensitive components, which can effectively prevent the hard collision between the thermocouple and the forming substrate, prolong the service life and increase the control means; the device can be used together with the processing program to control the forming The temperature field tends to be consistent, making the forming process more stable, and greatly improving the appearance quality, internal structure and performance of the forming.
Owner:浙江智熔增材制造技术有限公司

Control method of precipitates and inclusions in twin-roll strip continuous casting of non-oriented silicon steel

ActiveCN104226954BAvoid complex precipitationRealize flexible controlCooling chamberSlow cooling
The invention belongs to the technical field of metallurgy, aims at the problem of not having a proper method for controlling precipitates and impurities in the process of producing non-oriented silicon steel in a twin-roll thin-strip casting manner, and provides a method for controlling the precipitates and impurities in the twin-roll strip casting process of non-oriented silicon steel. The method comprises the following steps of solidifying and forming molten non-oriented silicon steel by a twin-roll thin-strip casting machine so as to obtain cast strips with a thickness of 2.0-2.6 mm; taking the cast strips out of rolls, feeding the cast strips in a secondary cooling zone after casting, and slowly cooling the cast strips in a slow cooling chamber; feeding the cast strips into a tertiary cooling zone for fast cooling; cooling and coiling the cast strips which are subjected to the fast cooling by the tertiary cooling zone, and then obtaining non-oriented silicon steel cast strips. By utilization of the method, AlN precipitates in the cast strips reach a level of 0.5-2.0 microns, and the precipitation of MnS is obviously inhibited, so that the influence of the AlN and MnS precipitates on recrystallized grain growth and magnetic domain-wall movement is essentially eliminated, and a basis is laid for developing high-quality non-oriented silicon steel.
Owner:NORTHEASTERN UNIV LIAONING
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