1. Introduction Acyclic compounds are important intermediates in the synthesis of many pharmaceuticals, and the synthesis of acyclic compounds is a very important part of organic synthesis. They are generally prepared by several methods: 1. Dehydration of amides 2. Reaction of aliphatic halides or sulfonate esters 3. Cyanation of aromatic halides 4. Other conversions from … Read more
A abd┃abdominal 腹部的 ABK┃aphakic bullous keratopathy 无晶体性大泡性角膜病变 abn┃abnormal 异常 ac┃before meals 餐前 AC┃anterior chamber 前房 ACC┃accommodation 调节 ACG┃angle-closure glaucoma 闭角青光眼 ACIOL┃anterior chamber intraocular lens 前房型眼内晶体 add┃adduction or reading additional power 内收；阅读另加屈光力 ad lib┃as desired 当需要时 adv┃advanced 高度 AIBSE┃acute idiopathic blind spot enlargement 急性特发性盲点扩大综合征 AIDS┃acquired immunodeficiency syndrome 艾滋病 AION┃arteritic ischemic optic neuropathy 动脉缺血性视神经病变 ┃anterior ischemic optic … Read more
Due to WeChat’s changes to subscription account push rules, many friends cannot quickly find us, but we are actually pushing every day!You can set Organic Synthesis as a star (click the upper right “…” to set it as a star), so you can quickly find us in the WeChat subscription account and check the daily … Read more
About the Youth Robotics Technology Level Examination Levels 3-6 Explanation of Software Programming Languages Level 3 and Level 4 1. Programming Language # Level 3: Graphical programming, it is recommended to use Mixly software, version Mixly 0.997 or above, with Mixly 0.999 being preferred. # Level 4: Standard use of Arduino C code programming, it … Read more
To further standardize the youth robotics technology level examination, the software requirements for the practical part of levels three to six are explained as follows. All examination service points must fully distribute this explanation to all candidates and parents participating in the exam, ensuring that all candidates’ computers are configured as required. 1. Computer for … Read more
Today, I will share with you how to make an ESP8266 drone and its working principle (Note: This drone can climb walls). We all know what the function of a drone is, which is to fly. But if I told you that this drone can also climb up walls or dive underwater like a submarine, … Read more
After more than 40 days of preparation, over 20 days of literature search, translation, reading, and organization, and 14 consecutive days and nights of writing without rest, the first draft of the literature review “Progress of Phyphox in Secondary Physics Experimentation” has been freshly produced with the careful guidance of several professors from Nanjing Normal … Read more
Abstract In the process of core drilling with wireline, real-time measurement of temperature and pressure at the bottom of the well helps to improve the core sampling process and increase the core recovery rate. Meanwhile, the in-situ measurement data of the core at the bottom of the well is of great significance for understanding the … Read more
About the Youth Robot Technology Level Examination Levels 3-6 Explanation of Software Programming Languages Levels 3 and 4 1. Programming Language # Level 3: Graphical programming, it is recommended to use Mixly software, version Mixly 0.997 or above, preferably Mixly 0.999. # Level 4: Uniformly use Arduino C code programming, it is recommended to use … Read more
[Author] Chen Zhexu [Institution] Jinhua Binhong Primary School [Project Idea] To enhance the quality of modern life, many families plant or pot green plants and flowers at home or in their yards. However, we often encounter the awkward situation of leaving our plants unattended while traveling for business or vacation. For drought-resistant flowers, sometimes not … Read more