Concept Scientific notation is a method of counting numbers. Express a number in the form of multiplying a and 10 to the nth power (1≤|a|<10, a is not a fraction, n is an integer), this...

Overview Humans have separated the concept of "1" from the concept of "many", which is considered to be the concept of numbers that humans have made through the most difficult stage. The concept of...

Interpretation of words 1. Calculation. "Guanzi·Seven Laws": "Rigid and soft, light and heavy, large and small, real and virtual, far and near, and how many are counted." Yin Zhizhang's note: "All t...

Here we mainly introduce the binary notation. Binary In the famous Schlossbiliothke zu Gotha library (Schlossbiliothke zu Gotha) in Turingen, Germany, there is a precious manuscript with the title:...

Interpretation The counting method of live bacteria is also called the indirect counting method. The direct counting method measures the total number of dead and living cells, while the indirect cou...

Definition What is a network disk. Netdisk, also known as network hard disk and network U disk, is an online storage service based on the network. Netdisk provides users with file management functio...

Introduction This book is based on the latest relevant laws and regulations of my country and the GCP of developed countries or international organizations, mainly the WHO and ICH GCP guidelines. For...

Chapter One General PrinciplesThe first article is to ensure that the drug clinical trial process is standardized, the results are scientific and reliable, and the rights and interests of subjects are...

The situation in China Clinical trials in ChinaDue to the rapid growth of the Chinese pharmaceutical market, the availability of patients, and the relatively low cost of conducting trials, it is wel...

Development Baidu Netdisk (3 photos) At the Baidu World Conference in September 2012, Baidu released the "Development "Seven weapons", including personal cloud storage PCS, multi-screen Screen X tec...

Identification method Here we can only identify by the appearance of the disc and the workmanship of the dye coating. High-quality CDs are usually made of strong materials and have very good elastici...

Brief introduction The video file on the hard disk is burned to the disc with a CD burner, and then it can be played on an ordinary VCD or DVD player. Backing up important data on the hard disk to a...

Basic information Approval number30670551Project name td>Research on bio-disc sensor technologyProject categoryProject on the surfaceApplication codeC1005< /tr>Project leaderFeng YingTitle o...

Content summary The whole book focuses on science, knowledge and practicability. It is an advanced science reading that reflects the achievements of modern optical disc technology, and it is also a m...

Development History The Blu-ray Disc format was developed by the Blu-ray Disc Association (BDA), which is an organization composed of consumer electronics companies, computer companies and media dis...