33results about How to "Unaffected by external conditions" patented technology

The invention discloses a method for cultivating and producing dragon's blood using dragon dracaena tissue, which comprises using dracaena cladium apical growing point as explant, culturing for inducement production of callus on the culture medium of the inducement callus, inducing and differentiating callus to form cluster seedling, subjecting the cluster seedling to subculture proliferation, charging auxin into enrichment culture medium to induce the production of dragon's blood, excreting into culture medium, and using culture medium directly for separating and extracting dragon's blood.

The invention provides an air conditioner, a cooling system and a cooling method for a frequency converter of a centrifugal unit in the air conditioner. The cooling system includes: a condenser (3), which is provided with a cooling water flow path; a frequency converter (1), which is provided with a cooling flow path, and the cooling flow path passes through the water inlet flow path (5) and the water outlet flow path (6) and the condensation The cooling water flow path in the device (3) is connected. In the cooling system of the present invention, the condenser is directly connected to the frequency converter, the structure is simple, the water flow pipeline is shortened, the cost is saved, and the overall structure of the unit is not affected in any way; the expansion valve is used to control the cooling water consumption according to the actual temperature of the frequency converter, The cooling effect is stable and reliable, not affected by external conditions, ensuring the normal operation of the entire unit, and at the same time, saving cooling water; using the cooling system of the present invention for cooling, under the premise of normal and stable operation of the frequency converter, effectively guarantees normal operation of the air conditioner.

A myocardial cell detection method based on hydrogel of an inverse opal structure, and applications thereof. The method comprises the following steps: (1) preparing hydrogel of an inverse opal structure, having biocompatibility; (2) culturing myocardial cells, based on the hydrogel of an inverse opal structure; (3) detecting the myocardial cells; and (4) analyzing data. The hydrogel of an inverse opal structure has good biocompatibility, cells have high activity and phenotype when growing on the surface of the hydrogel, the hydrogel of an inverse opal structure provides a carrier for the growth of the myocardial cells, and more importantly, provides stable optical sensing signals for detecting the shrinking force and the beat frequency of the myocardial cells. The detection method does not need a complicated detection system, and has the advantages of intuitiveness, high sensitivity and high efficiency and is not affected by external conditions; the method can be used for screening and evaluating heart drugs and can screen the drugs by means of the variation of the shrinking force and the beat frequency of the myocardial cells after the drugs are added.

The method comprises: using FPGA or CPLD to control the A / D sampling; setting up synchronous sampling control signals; the synchronous sampling signals are outputted from the channel decoder; the sampling signals are attached with the synchronous control signals by the channel encoder, and then are sent to the decode at opposite side to realize the restore of synchronous signals and the data decode. For a system with a master / slave structure, the master machine side periodically makes sampling, and the slave machine side is controlled by the master machine side and returns the sampling data; the data sampling and the channel encode approach of data transmission use synchronous and two-way transmission, and the transmission pulse of the channel encoder has the output synchronous signals; the slave machine uses said signals to start the data sampling and the data transmission.

The invention discloses a waterproof and vibration-isolating microporous elastomer material and its structure for high-speed railway foundation, and relates to the field of building materials and application. Microcellular elastomer material, raw materials are in parts by mass: 23-32 parts of waste rubber powder with a particle size of 12 mesh to 200 mesh, 34-40 parts of polyurethane binder A component whose main component is polyol, and main component is polyisocyanate 30-35 parts of the B component of the polyurethane binder and 0.6-1.0 parts of the polyurethane defoamer. The microporous elastomer material of the invention has high modulus, good mechanical properties and vibration damping and vibration isolation properties. Subgrade waterproofing and vibration isolation structure, when used for railway subgrade, includes soil foundation, subgrade bottom layer, subgrade surface layer, microporous elastomer waterproof vibration isolation layer, asphalt or cement concrete support layer and superstructure, which are laid in sequence from bottom to top. The layout method when the vibration isolation layer is used for on-site pouring: set the mold; shear and stir to configure the mixture; pour the waterproof vibration isolation layer. It is used for high-speed railway foundation, which makes the subgrade have good waterproof and vibration isolation performance, and can effectively slow down the degradation of the subgrade.

The invention relates to a bicycle fitness device with high durability comprising a rear wheel support device, a front wheel support device, a telescopic adjusting device and an intelligent motion device. The improvement of the specific arrangement of the various components makes it possible for the high-durability bicycle fitness device to be combined with various types of bicycles at any time to form efficient fitness equipment; the device can be folded when users do not need body building which occupies small area. The improvement of important vulnerable spring parts realizes high efficiency and high durability for the bicycle when the bicycle inclines left and right to complete intelligent training.

The invention discloses a test beam long-term loading system and method. The loading system comprises a lever, a tension bar, a distributive beam, a counterweight device, a hydraulic pressure weight adjusting device, a ground anchor and a force transmission and testing device; the design of a loading system is carried out using the lever principle, firstly based on the test requirements, the size of the applied load as required is set; after the determination of the size of the load, the length ratio of the short arm and the long arm of the lever is designed from the size of the test site, the size of the loading lever and other aspects, under the precondition that the weight of the lever is not taken into consideration; in theory, the larger is the length ratio of the short arm and the long arm of the lever, the larger is the weight applied to the force bearing point of the long arm, and the larger is the amplifying multiple of the load at the force bearing point of the lever, and the aim of applying relatively large load is further achieved by utilizing relatively small weight. The long-term loading system is easy to operate, the loading and unloading save time and labor, the performance is stable, and long-term testing is guaranteed. The long-term loading system in the later period does not require special maintenance, and basically is not affected by external conditions.

The invention relates to carton separation equipment used on conveying belts and a use method of the carton separation equipment, and belongs to the technical field of mechanical equipment. The carton separation equipment comprises a fixing board, a clip, a first spring, a second spring, a first spring upper fixing column, a first spring lower fixing column, a second spring upper fixing column, a second spring lower fixing column and a fixing shaft. In a word, the carton separation equipment used on the conveying belts is only installed between the two conveying belts, tightly attached cartons on the conveying belts can be separated accurately in time, the carton separation equipment is sensitive and reliable, the use environment is not affected by external conditions, and large-scale automatic production of an assembly line is facilitated. In addition, the carton separation equipment is reasonable in structural design and suitable for application and popularization.

The invention discloses a multi-node synchronous sampling and data transmission method in a ring communication network. The master node generates a synchronization pulse AD_CVT and a transmission trigger pulse TX_SYN consistent with the system sampling interval Ts, and at the same time the master node completes local real-time data under the control of AD_CVT Collect and complete data transmission under the trigger of the TX_SYN signal; at the same time, each control node divides the physical channel into real-time and non-real-time logical channels, classifies the real-time sampling data service into the real-time logical channel for transmission, and transmits the real-time sampling data through the interleaved Extract and send from two different directions of the ring network, classify non-real-time data into non-real-time logical channel transmission. The method of the invention realizes the synchronous sampling and synchronous data transmission of each control node in the ring network, and improves the efficiency of data sampling and the real-time performance of data transmission.

The invention discloses a myocardial cell detection method based on photonic crystal hydrogel fiber and application thereof; the method comprises the steps of 1) preparing biocompatible photonic crystal fiber; 2) using the photonic crystal hydrogel fiber to culture myocardial cells; 3) detecting the myocardial cells based on the photonic crystal hydrogel fiber; 4) analyzing data. The photonic crystal hydrogel fiber prepared herein has good biocompatibility; the photonic crystal hydrogel fiber has photonic band gap in photonic crystal, provides an optical sensing substrate for detection of myocardial cells, and contractibility and beat frequency of the myocardial cells are detected through changes in structural color or reflecting peak of the photonic crystal hydrogel fiber; the method of the invention is applicable to screening and evaluation of cardiac drugs, and screening is performed according to the changes in the contractibility and beat frequency of the myocardial cells after thedrugs are added. The method provided herein is simple to perform, low in cost, and convenient to apply to large-scale production.

The invention relates to an intelligent bicycle training device. The intelligent bicycle training device comprises a rear wheel supporting device, a front wheel supporting device, a retractable adjusting device and an intelligent moving device; and specific arrangement modes of the various components are modified, so that the intelligent bicycle training device can be combined to a bicycle with various models at any time to form efficient fitness equipment, when a user does not take exercises, the intelligent bicycle training device can be retracted, and the occupied area is quite small. Meanwhile, due to the intelligent moving device, a mode of riding in the outside can be simulated completely, and multiple effects of taking exercises and relieving the body and mind are achieved.