42results about How to "Meet the research requirements" patented technology

A giant six-legged polar research vehicle with tracked feet, including a platform, six legs arranged at six ends of the platform and six tracked feet arranged below the six legs. A monitoring device is arranged on a top cover. Six power compartments each having a steering device are arranged at six ends of a chassis in the platform. Each leg includes a main traveling device with an upper end and a lower end respectively connected to the steering device and a tracked foot, an auxiliary traveling device with an upper end and a lower end respectively connected to the chassis and the main traveling device, and a connecting device arranged on the main traveling device. The tracked foot includes a main flipping mechanism, an auxiliary flipping mechanism, a tracked foot slewing device, a crawler, a sliding plate and a suspension.

The invention discloses a circulating pipe network water quality integrative simulation test system. The system comprises a water supply subsystem and an independent circulating pipe network subsystem, wherein the water supply subsystem comprises a water supply water tank provided with a water inlet, a water outlet and a chemical filling hole; the independent circulating pipe network subsystem isa loop comprising a main circulating pump, an electromagnetic flowmeter and a high-level water replenishing and exhausting water tank which are connected in series by virtue of pipelines; the loop isconnected with a first pipeline branch for realizing closed circulation which can be switched to quasi closed circulation, a water replenishing system for replenishing water for the loop, an emptyingbranch for discharging the water in the loop and a water quality monitoring system; and meanwhile, chemical filling systems are also connected on the pipeline of the independent circulating pipe network subsystem. All the components of the system cooperate with each other and the system has the following advantages: the system has high simulation degree and is closer to the practical municipal water supply pipe network systems.

The invention provides dynamic simulation device and method thereof of a super and extra high voltage controllable magnetic control shunt reactor, wherein the dynamic simulation device is capable of accurately simulating magnetic control shunt reactors with different capacities in 500kV, 750kV and 1,000kV power transmission systems. A simulation body consists of three single-phase magnetic control reactors; each single-phase magnetic control reactor is in a three-column structure; two beside core columns are working iron cores; a main alternating current winding and a direct current control coil are wound on each working iron core; and main alternating current windings on the two iron core columns are connected in parallel and connected to a power grid. Control windings are separated fromthe main windings so as to ensure the safety and the reliability of the device during work. The main windings are provided with twelve turn-to-turn short circuit taps which can respectively simulate 1-25 percent of turn-to-turn short circuit faults from the high-voltage side and the neutral point side; and the control windings are provided with seven turn-to-turn short circuit taps which can simulate 1-25 percent of turn-to-turn short circuit faults from the neutral point side. The body of the device is provided with a current transformer and a voltage transformer on a primary side, which areused for meeting the requirement for protecting a reactor body in a dynamic simulation test.

A testing device for storing / releasing energy of a shaped phase change material disclosed in the present invention comprises a test container, the test container is respectively connected with a signal conditioning module and an industrial computer through wires, and an A / D conversion module is arranged between the signal conditioning module and the industrial computer , the industrial computer is respectively connected with a clock module, a display screen and a keyboard. The storage / release energy testing device for shaped phase change materials of the present invention has a wide range of applications, and the size of the sample to be tested can be large or small, which can meet the research requirements of relatively fine phase change materials, and is also suitable for the research and development of relatively coarse materials. Development; it can measure the temperature distribution inside the phase change energy storage material during the phase change process, and provide experimental data for the study of the phase change mechanism; it can measure multiple samples at the same time; by adjusting the internal temperature and volume of the constant temperature container, it can simulate different The application environment of the case. Compared with thermal analysis instruments such as DSC with a price of several million yuan, the test system proposed by the invention has low cost.

The invention discloses a cage structure microporous culture dish for forming three-dimensional microtissues of cells in vitro and a preparation method thereof. The cage structure microporous culture dish is composed of four basic parts, and the first basic part is a modified bottom surface. Petri dish, the second basic part is the modified polymer microwell array, the third basic part is the cell screen, and the fourth basic part is the cell culture medium storage pool; the cage structure microporous culture dish can realize cell Inoculation, long-term cell culture, three-dimensional micro-tissue formation, online detection, multi-cell three-dimensional co-culture. The process of the invention is simple, easy to control and low in cost. When the cage structure microporous culture dish of the present invention is used for biological experiments, reagents are saved, the throughput is high, the operation is easy, and the three-dimensional culture of cells in vitro has high efficiency and good quality.

The invention provides a preparation and regeneration method of pythium oligandrum protoplasts. The reparation and regeneration method comprises the following steps: a, preparing thallospore hybrids; b, preparing protoplasts; c, purifying the protoplasts; and d, regenerating the protoplasts. According to the method, a complex enzyme system containing lysing enzyme, cellulsase and lyticase is adopted for carrying out enzymolysis on the mycelia of pythium oligandrum, then the pythium oligandrum protoplasts are obtained, and the protoplasts are regenerated through liquid shaking culture adopting a regeneration culture medium taking mannitol as an osmotic pressure stabilizer. The number of the pythium oligandrum protoplasts prepared by adopting the method is large, the yield is high, and the activity is good; through the liquid culture regeneration path, relatively high regeneration rate can be obtained, and the regeneration rate can achievce 1.25%. The method is easy and convenient to operate and good in stability, the obtained pythium oligandrum protoplasts can completely satisfy the research and application such as late gene genetic transformation and cell fusion. The invention further provides composite enzymatic hydrolysate for preparing the pythium oligandrum protoplasts, the composite enzymatic hydrolysate is a key factor in the preparation process of the pythium oligandrum protoplasts, and the enzymatic hydrolysate is suitable for being further developed and applied.

The invention discloses a circulating pipe network water quality integrative simulation test system with visible pipe sections. The system comprises a water supply subsystem and independent circulating pipe network subsystems, wherein the water supply subsystem comprises a first water supply water tank and a second water supply water tank; the first water supply water tank is provided with a water inlet, a water outlet and a chemical filling hole; the second water supply water tank is communicated with the first water supply water tank by a pipeline with a second valve and is provided with a water inlet, a water outlet and a chemical filling hole; each independent circulating pipe network subsystem is a loop comprising a main circulating pump, a multichannel flow switching and calibratingdevice, a visible pipe section and a high-level water replenishing and exhausting water tank which are connected in series by virtue of pipelines; the loop is connected with a first pipeline branch for realizing closed circulation, a water replenishing system, an emptying branch, a water quality online monitoring system and a temperature control system; and meanwhile, chemical filling systems arealso connected on the pipeline of the independent circulating pipe network subsystem. All the components of the system cooperate with each other and the system has the advantages of high simulation degree and capability of simulating various working conditions of municipal water supply pipe network systems.