 |
According to an article in the Scientific Times, 10,000 mu of peanuts in Dashawan Village, Zhaogu Township, Huixian County, Henan Province, arrived at harvest time, yielding 500 kilos per acre and lacking any chemical residue. , making their "green peanuts" famous and in short supply. This is the effect of the villagers' continuous use of solar physical pest control.
Most people are familiar with solar water heaters, solar power plants, but did not expect solar energy can actually eliminate insects. How is solar energy disinfested?
“The solar energy disinfestation is mainly the use of solar insect killer lamps, which store the radiant energy of sunlight during the day, convert it into electricity, store it through batteries, provide power for insecticidal lamps in the evening, attract pests to attach to them, and release electric energy. Killed.†Shen Yanbo, deputy director of the Wind Energy Solar Resource Assessment Center of the China Meteorological Administration, explained to reporters.
Insects generally have phototaxis, and the visible light region is biased towards short-wavelength light. Most insects with phototaxis prefer wavelengths of around 3300 nm. Ray Chung-jen, a researcher at the Institute of Plant Protection of the Chinese Academy of Agricultural Sciences, said that the solar black light developed based on this feature can effectively trap beetles, scorpions, and tigers.
Using the principle of physical disinsection of solar energy, scientific disinsection can not only reduce the use of pesticides, protect the ecological environment, but also make full use of solar energy resources and save conventional energy.
Shen Yanbo said that China’s solar energy resources are abundant. For example, in Beijing, it is about 5,000 megajoules per square meter per year. If it is converted into electricity, it can generate nearly 1,400 degrees, and can be used continuously for a household electric appliance with a power of 1 kW (such as a refrigerator). 1400 hour.
The major crops in China are rice, wheat, corn, and cotton, and there are countless losses due to pests and diseases every year. Although spraying pesticides can suppress pests and diseases, it has a certain impact on the growth of crops.
Solar pest control lamp has the characteristics of all-weather work, no fear of rain, high temperature, corrosion protection, safety and environmental protection. At present, Henan, Shaanxi, Anhui and other provinces have promoted the use of solar physical pest control lamps.
“The solar energy pest control lamp is one of the promising non-pollution pest control technologies. The effective collection and use of solar energy resources is the key to this technology.†Shen Yanbo said that the China National Weather Service’s wind energy solar energy resource assessment center is a national Professional departments will further address the needs of the country and society, continue to strengthen the evaluation of solar energy resources, and further provide services for the development and utilization of solar energy.
1) Sharp cutting and processing;
(2) Diamond cutting pieces have high rigidity, high strength and long service life;
(3) The ultra-thin diamond cutting piece has high precision, which can be used for slotting machine cutting, and the incision is smooth without collapse;
(4) The continuous cutting of Valin diamond slices does not slip and does not appear the phenomenon of blade passivation;
(5) The diamond cutting slot is narrow, which can greatly improve the utilization rate of precious raw materials.
Application materials of ultra-thin diamond cutting pieces:
Grinding materials: refractory materials, ultra-fine whetstone, whetstone, whetstone cutting;
Ceramic materials: alumina, zirconia, silicon carbide, peng carbide, boron nitride, ceramic lining brick, piezoelectric ceramics, black ceramics, glass products;
Semiconductor materials: silicon carbide, silicon wafer, monocrystalline silicon, polysilicon, solar cell, circuit board (PCB);
Magnetic materials: magnetic core, magnetic sheet, magnetic ring, permanent magnet ferrite, rare earth Ndfeb;
Glass materials: all kinds of glass tube, glass spout, tea leakage, high borosilicate glass (e-cigarette tube), rice beads, capillary glass tube, optical glass, quartz glass, microcrystalline glass, sapphire, crystal, jade;
Brittle metal materials: YG series hard alloy, tungsten steel round rod;
Optical materials: LED, LCD, quartz photovoltaic, quartz crucible;
Alloy materials: high speed steel, die steel, alloy steel, stainless steel;
Other materials: carbon fiber material, valve rod, brake pad
Abrasive Blade,Angle Grinder Cutoff Disc,1 Inch Cut Off Wheel,Aluminum Oxide Thin Cutting Wheels
Henan Kemei Abrasives Co.,LTD , https://www.kmgrindingwheels.com