Researchers discover hundreds of new gut bacteria February 20, 2019 Source: Xinhua Author: Guo Yang The Hudson Medical Institute of Australia recently published a press release saying that the researchers and the British and Canadian counterparts have discovered more than 100 new intestinal bacteria in the human body, and it is expected to develop diseases such as gastrointestinal disorders and gastrointestinal infections. New treatment methods. There are a large number of bacteria living in the human intestine, which play an important role in metabolism, immunity and cardiovascular function. The researchers collected fecal samples from 20 volunteers from the UK and Canada. On this basis, 737 bacterial strains were successfully developed and DNA (deoxyribonucleic acid) sequencing was performed. The analysis showed that the flora consisted of 273 species of bacteria, of which 105 were new species. In addition, the first time in this study, the genetic sequence of 173 bacteria was detected, increasing the number of known human intestinal bacterial genomes by 37%. Research papers have been published in the British journal Nature Biotechnology. Samuel Foster, the first author of the paper and the Hudson Medical Institute, said: "This study created the largest and most comprehensive public database of intestinal bacteria, and the intestinal flora has an important impact on health and disease. "" Trevor Laurie of the Sanger Institute at the Welkom Foundation in the UK said: "This resource will make microbial flora analysis faster, cheaper and more accurate, and will help further study their biological characteristics and Features."
What is DVR Mini Camera
Dvr, which is called DigitalVideoRecorder in full, is a digital video recorder. Compared with traditional analog video recorders, dvr uses hard disk for recording, so it is often called hard disk recorder, also called DVR. It is a set of computer system for image computing, storage and processing. It has the functions of long-time video recording, recording, remote monitoring and control of images/voice and dynamic frames. DVR integrates five functions, including video recorder, picture splitter, PTZ lens control, alarm control, and network transmission. One device can replace a large number of devices in the analog monitoring system, Moreover, it has gradually gained advantages and popularity in terms of price.
The function of DVR, with the increase of various voltage sensitive loads in the distribution network, puts forward higher requirements for power quality. However, due to system accidents in the power system, the voltage flicker, drop and other disturbances caused by the startup and shutdown of large equipment, lightning stroke and other principles are unavoidable. Moreover, in the current power grid, the ability to quickly restore power supply after power interruption is far from meeting the requirements of many sensitive loads. Therefore, it is necessary to provide users with stable and uninterrupted high-quality power when interference occurs. Dynamic voltage recovery (DVR) is the choice to solve the above problems today. DVR is connected in series to the feeder line that requires high-quality power to realize dynamic real-time voltage compensation for the line, so that the load end can get the desired high-quality power, and ensure the normal and uninterrupted operation of sensitive user equipment.
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The "digitalization" of DVR means that compression and storage technology is aimed at digital signals, rather than directly transmitting digitally encoded video images. Therefore, DVR must be deployed near the analog camera.