Biological lipids are generated from ketoacyl and isoprene (CH2=C(CH3)CH=CH2) groups and include glycerolipids, sphingolipids, fatty acids and polyketides. Lipids play roles in energy storage ...

Today will be mostly cloudy and breezy. Scattered showers will be around for most, though they will generally be light in nature. One or two glimmers of brightness are also occasionally possible ...

发酵黑蒜具有极高的营养价值，检验机构检测报告显示：鲜大蒜每100g含水分69.8g、糖7.2g、蛋白质5.2g、脂肪10.2g、钙10mg、磷12.5mg、铁1.3mg、维生素B10.29mg、维生素B20.06mg、尼克酸0.8mg、维生素C ...

This evening will be dry with clear spells. Turning cloudy overnight with rain moving in from the north after midnight, which will fall as snow over higher ground. Rain clearing to showers later ...

Students often focus on superficial features of the initial learning situations they encounter (e.g., examples, cases, and problems) without understanding or recognizing the general principle involved ...

Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, ...

双脉冲测试是一种行业标准技术，用于在被测器件 (DUT)的开启、关闭以及反向恢复过程中测量一系列重要参数。基本测试设置如图2所示。假设高侧和低侧使用相同的晶体管器件，高侧晶体管可以保持关闭状态，从而可以测量开关损耗和反向恢复损耗。为了确定电路中的DPT开关参数，需要观察低侧器件的 ...