Fengquan·Magnetic valve selection essentials Solenoid valve selection should first follow the four principles of safety, reliability, applicability and economy, followed by six aspects of field conditions (ie pipeline parameters, fluid parameters, pressure parameters, ......
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Release date: 2009-04-21 Recently, researchers at the Massachusetts Institute of Technology's Perceptual Communication Group have developed a haptic device that translates sound waves into shocks that the skin can feel by “transducing†the subtleties of speaking, thus overcoming ......
Ambient temperature and light time are important environmental factors that affect rabbit reproduction. According to authoritative data, in March, male rabbits have the largest amount of ejaculates, the highest sperm density, and the highest sperm motility. In summer (especially in July), the test ......
Effect of Pyripridone Suspension in Controlling Whitebacked Planthopper in Field Cheng Jinsheng Jiangxi Province Xinjian County Plant Protection & Phytosanitary Inspection Station Wu Wei Jiangsu Kesheng Group Co., Ltd. Abstract: Kesheng 25% pymetrozine was used to control whitebacked plantho ......
Release date: 2009-03-31 On March 30th, Chinese researchers explored the protection of heart for more than 6 hours of ischemia and the effect of such heart transplantation. The investigators selected 26 cases of cardiac ischemia for more than 6 hours due to objective reasons, reaching (401 ± ......
Release date: 2009-03-30 A few days ago, the latest issue of Science reported that the spinal cord electronic devices developed by American scientists could help rats with Parkinson's disease to become more active. The device is expected to treat Parkinson's disease in a less invasive w ......
With a slight application of subtotals, grapes will be sweet under the conditions of market economy, and only high-quality fruits will be competitive. As a high-quality grape production, we should pay attention to the color and sweetness of the fruit. However, due to the soil and cultivation method ......
We said watermelon "empty" is not a watermelon watermelon but watermelon plants did not sit out of watermelon, watermelon "empty" is not a species problem, the reasons for the following aspects: First, bad weather factors. Watermelon is a thermophilic crop, its growth and devel ......
Carrot tablets are a new type of vegetable processing products that has risen in the domestic market in recent years. Because of its rich nutrition, bright color, and fresh taste, it is welcomed by consumers. The production method is now described as follows: 1. Fresh raw materials radish tuber, s ......
After the cotton is topping, the plant organs compete for nutrient intensively. If the supply of nutrients is insufficient, the middle and lower parts of the plant will reduce or have no bell in the upper part, or the cotton bolls will have premature decay, leaves fall off and the boll weight will ......