Chinese Academy of Agricultural Sciences

Hosiden Corporation

Marine Biomedical Research Institute of Qingdao Co., Ltd.

Wei Wang

Yanting Li

Liang Yuan

Bingqiang Zhao

Zhian Lin

Shuiqin Zhang

Hideo Yuasa

Huashi Guan

Hidenori Motonaga

Katsunari Fujita

Shixin Wang

Pengli Li

Hongguang Wang

Xuan Xia

Chunxia Li

Xiaoshuang Zhang

The present invention relates to an organic nutrient-based dissolution accelerator for potassium sulfate and a preparation method therefor and the use thereof. The organic nutrient-based dissolution accelerator for potassium sulfate of the present invention consists of an organic acid mixture solution, tyrosine, leucine, threonine, alcohol amine, and the like. The organic nutrient-based dissolution accelerator for potassium sulfate of the present invention can not only substantially improve the dissolution speed of potassium sulfate by 6-120 times, but also provides organic nutrition for crops to achieve a synergy with inorganic nutrition to further improve the nutritional efficiency of potassium and sulfur elements.

Organic nutrient type potassium sulfate dissolution accelerator, preparation therefor and use thereof

The present invention relates to a method for preparing a humic acid-containing synergistic carrier for accelerating urea conversion. The preparation method includes steps of, for example, preparing an extractant for humic acid, preparing a humic acid extract and preparing a humic acid-containing synergistic carrier. Combination of the humic acid-containing synergistic carrier with urea can accelerate urea conversion, and the residual urea rate will be reduced by 22.7%-29.1% than a commercially available urea. The present invention provides a new idea for improving the utilization rate of nitrogen fertilizer in soil with low urease activity. Compared with a commercially available urea, the urea containing the humic acid-containing synergistic carrier of the present invention can increase the rice yield and the utilization rate of nitrogen fertilizer by 9.7% and 8.3%, respectively.

Preparation method for urea conversion-promoting humic acid synergistic

An application of alginate sulfate in the preparation of drugs and health care products for preventing and treating diseases caused by human papillomavirus. Alginate sulfate has a strong dose-dependent inhibitory effect on HPV infection through experiments, and alginate sulfate inhibited the expression of E6 and E7 genes and proteins in HPV-transformed Hela and Caski cells in a dose-dependent manner. The alginate sulfate can be developed into a drug or a health care product against human papillomavirus by systematic scientific experiments, which will have a good market application prospect.

Application of alginic acid sulfate in preparation of drugs and health care products for preventing and treating diseases caused by human papilloma viruses

An electroacoustic transducing device comprising: a magnetic circuit having a yoke, a magnet, and a pole piece; a vibration system having a diaphragm and a voice coil; and a frame which holds the magnetic circuit and the vibration system. The voice coil is placed in a magnetic gap, and has lead wires of the voice coil which are drawn out from the voice coil at positions which are remote from the diaphragm. Openings for air forming for forming slack portions in the lead wires are drawn out from the voice coil and are disposed in the frame. The lead wires are adequately subjected to the wire laying process, and the audio performance is prevented from being lowered.

Electroacoustic transducing device

Growing community of inventors

Shandong, China

Wei Wang