Strengthen construction and solve the phenomenon of mess. Since the implementation of rural biogas construction in Lhasa City, the rural household biogas has been widely used as a practical matter for the private sector. The publicity and guidance work for all counties (districts) has been done to promote biogas construction; meetings have been held, posters have been posted, manuals have been issued, etc. Form, to widely publicize the preferential policies and benefits of the construction of biogas digesters, guide farmers to take the road of circular economy; do a good job of demonstrative effects, let village cadres take the lead in building, do it for villagers, and guide them with actual effects, typical effects and diffusion effects. The general public actively participated in the construction of biogas.
Provide protection and do a good job of building pool services. The biogas pool is small, but its technical content is relatively high. The city of Lhasa has always maintained strict quality and service. At the same time, it prompts the masses to comprehensively use biogas residue and biogas slurry to develop green agriculture. The Lhasa City implemented a biogas project to promote the cleanliness of the village and make the livestock manure into the pool as far as possible, thereby realizing the recycling of livestock manure and forage and miscellaneous materials.
Unify thinking and firmly establish the concept of safety first. The Lhasa City has established a sound and long-term mechanism for the safety management of biogas, and has effectively strengthened its leadership in the safe production of biogas. Effective measures have been adopted to further strengthen the work safety management of rural biogas and prevent the occurrence of safety incidents. The city of Lhasa has also taken the rural biogas training and large-scale return visits as a regular task. Through large visits to eliminate and solve the hidden dangers of farmers in the use of biogas, make full use of various forms of public health gas production safety management knowledge; to strengthen awareness of the safety of production of biogas maintenance workers education. Before the Spring Festival, all biogas service stations in Lhasa carried out a comprehensive biogas production safety management self-inspection and key inspection.
Strengthen management and strengthen service network construction. In order to promote the management of biogas tanks and ensure the normal use of biogas digesters, the Lhasa City Bureau of Agriculture and Animal Husbandry actively sought funding, built a rural biogas service network covering the city, and provided services for biogas users in the city.
Strengthen training and improve service personnel. In order to cultivate more rural biogas maintenance and management technicians and create a group of “local experts†that are close to farmers, Lhasa City Bureau of Agriculture and Animal Husbandry has repeatedly invited technical experts to provide skills training for some biogas service outlet technicians and biogas users. Training experts, through on-the-spot maintenance of cooking appliances in rural households, teach practical techniques such as equipment installation and use, fault detection and maintenance to the trainees, so that technicians can continuously improve service skills, solve practical problems encountered by biogas users, and increase the enthusiasm and self-entrepreneurship of the farmers. Maintenance ability.
At present, in the process of isolation and preparation of various stem cells from various tissue sources, Centrifuge Tubes with a volume of 15ml and 50ml are used.
It is one of the low-value consumables with high usage rate. It is generally installed on a dry foam rack with the package or in bulk. When used, it is taken out by the operator and placed on the plastic centrifuge tube rack in the ultra-clean workbench. The common centrifuge tube rack can only make the centrifuge tube stand upright. When transferring liquid or needing centrifugation, the operator should hold the centrifuge tube in the left and the night gun or aspirator in the right. If it is necessary to transfer a large amount of liquid reagents or perform gradient centrifugation operations, such as density gradient centrifugation to separate mononuclear cells, the operator needs to hold the centrifuge tube with the right hand for a long time and tilt the centrifuge tube, which often causes the operator's wrist joint pain. At the same time, it will also affect the liquid superposition effect, which will easily lead to the mixing of liquids of different densities, resulting in the failure of the experiment.
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