60results about How to "Save experimental space" patented technology

The invention discloses a multi-specification heat preservation centrifugal pipe support for cell culture. The centrifuge pipe support comprises a centrifuge pipe cavity, a reagent bottle cavity and asupporting heat preservation part, the top of the centrifuge pipe cavity and the top of the reagent bottle cavity are open, the lower portion of the opening is of a solid side wall structure, the centrifuge pipe cavity has three specifications, and 1.5 ml, 15 ml and 50 ml of commonly-used centrifuge pipes can be placed in the centrifuge pipe cavity respectively. 500 ml of reagent bottles with cuboid bottoms can be placed in the reagent bottle cavity, the outer wall of the supporting heat preservation part is in a cuboid shape, the side wall of the combined centrifuge pipe cavity and the sidewall of the reagent bottle cavity are of an integrated structure, the middle is in a vacuum state, and four supporting legs are arranged at the bottom of the supporting heat preservation part. Centrifugal pipes of multiple specifications can be placed, reagent bottles can also be placed, the experiment space is saved, and experimenters can conveniently and orderly complete experiment operation. Inaddition, the number of placed supports is reduced, sterilization is more sufficient, and the possibility of pollution is reduced. And secondly, the transparent material enables an experimenter to well control the height of the liquid level of the reagent in the operation process.

The invention provides a multimedia teaching instrument. The instrument comprises a base plate, and a first magnet and a second magnet respectively correspondingly arranged on the base plate, and a display board, wherein the first magnet and the second magnet have different polarities, a cutting component is also arranged on the base plate, and the cutting component is arranged between the first magnet and the second magnet, the display board comprises 4 induction lamps, and high precision photosensitive sensors and hot sensitive layers corresponding respectively to the 4 induction lamps. The teaching instrument can achieve intuitive and fast displaying of movement results of the magnetic induction cutting, saves the experiment space and improves the efficiency.

A cell cryopreservation device applied to a space station belongs to the field of space biological cell cryopreservation. The present invention solves the problem that the existing space station cannot realize long-term cell cryopreservation and is not suitable for cell transfer. In the present invention, the cells that have been frozen and stored in the internal laboratory of the space station through the program cooling process are packaged and transported to the drive carrier for frozen storage outside the space station through the special cell door of the space station, and are automatically adjusted to the back side according to the different positions of the space station to achieve long-term stability. Freeze. The present invention drives the carrier for cryopreservation with controllable rotation, and freezes different cells to a set position through a conveying mechanism, makes full use of the cryopreservation space, and can realize the cryopreservation of multiple batches and types of cells at the same time, reducing the size of the space station. Internal experiment space, reducing internal power loss and redundant internal heat sources. The invention is applicable to the use of cryopreserved cells in space stations.

The invention discloses a method for evaluating the cerebral cortex motor representative area of ​​the trunk muscle and its application. The method monitors the contraction degree of the trunk muscle of the subject through a biological pressure feedback instrument, and simultaneously uses the transcranial magnetic stimulation technology to stimulate the cerebral cortex motor representative area. In the area, the amplitude and latency of the motor evoked potential of the trunk muscles were recorded, and finally the data was processed by Python3.7 software to obtain a three-dimensional image of the trunk muscles in the motor representative area of ​​the cerebral cortex. The method of the invention improves the large and bulky surface electromyography equipment into an easy-to-carry, convenient and compact biological pressure feedback instrument, simplifies the experimental equipment, saves the experimental site, makes the experimental process smoother, and has wider applicability. At the same time, using the programming software to effectively process the experimental results and generate three-dimensional images makes the experimental results more clear and vivid, which is of great significance for a better understanding of the relationship between pain-brain-muscle.

An extrusion experiment apparatus for flexible pipe cables in ocean engineering is characterized in that the apparatus comprises a ring gear and a driving device for driving the ring gear to rotate; the end face at one side of the ring gear is engraved with vortex-shaped lines; the ring gear is outside provided with a shell, the shell possesses a hole through which a pipe cable passes, the hole is concentric with the ring gear; and the shell is provided with multiple hold-down devices uniformly distributed by taking the circle center of the hole as the center, and under working condition, the engraved vortex-shaped line drives the multiple hold-down devices to moves along the radial direction of the hole synchronously. The designed clamping system is capable of achieving synchronous movement of multiple crawler shoes through a single actuator, achieving linkage of slide blocks moving along the radial direction through the engraved vortex-shaped lines, and accordingly realizing synchronous extrusion of the crawler shoes towards the section center of the pipe cable while guaranteeing the extrusion precision, and avoids error caused by coordination control of a conventional experiment apparatus.

The invention discloses that the invention discloses a mobile measuring device for a high-voltage power frequency AC withstand voltage system, which includes a current-limiting resistor and a measuring mechanism. One end of the current-limiting resistor is provided with a conductive column in contact with the test transformer, and the other end is provided with a connecting seat. , the top of the measuring mechanism is provided with a conductive contact seat in contact with the connecting seat, the current limiting resistor is supported by a supporting platform, and the supporting platform is fixed on the mobile base through a lifting mechanism, and the bottom of the measuring mechanism is The end is fixed on the lateral movement mechanism, and the lateral movement mechanism is installed on the mobile base. The current-limiting resistor and capacitor voltage divider of the system are installed on the electric vehicle frame to form a platform. The height of the platform can be adjusted, which can realize electric movement conveniently and quickly. The forward and backward operation is simple and convenient, realizing the mobility of the system. The space has been optimized to the greatest extent; at the same time, the platform can realize the fast and accurate positioning of the connection part of the current limiting resistor and the connection part of the test transformer, saving a lot of manpower.