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Showing posts from September, 2022

Animal and Plant Anatomy

Animal and Plant Anatomy Anatomy is a branch of biology that involves the structure and organization of living bodies, and can be divided into animal anatomy and plant anatomy. The main branches of anatomy are comparative anatomy, histology and human anatomy. In anatomical research, dissection is often used to study large organs, and microscopes are used to observe tissues, cells and organelles. Anatomy science is a branch of biology classification animal anatomy and plant anatomy related figures medical scientist Galen research direction human anatomy and physiology the smallest unit cell. Table of Contents 1. Basic introduction 2. Medical Value     ▪ Related works     ▪ Ancient Anatomy 3. A brief history of development     ▪ Early     ▪ Asia     ▪ Western     ▪ Modern     ▪ Introduction to Global Development       Basic Introduction to Plant and Animal Anatomy Anatomy Innovation: Plant and Animal Anatomy is on

How many Types of Toxicology Testing is done?

  Toxicological testing plays an important role in ensuring the safety of food, cosmetics and chemical products.  Toxicology is the applied medicine that studies the harmful effects of chemicals, including pharmaceuticals, environmental pollutants, and industrial chemicals. It is a science that studies the toxicity, severity, frequency and mechanism of toxic effects of chemical substances on organisms, as well as qualitative and quantitative evaluation of toxic effects. It is a discipline that predicts its harm to the human body and the ecological environment, and provides a scientific basis for determining the safety limit and taking preventive measures.  Through animal experiments and human observations, the toxicity of a chemical and its potential hazards are elucidated, in order to evaluate the safety of human use of these chemical substances, and to provide a theoretical basis for the formulation of preventive measures, especially health standards.   What services do toxicology

Cigarette Tar Wastewater Treatment by Zero Valent Iron Reduction

  Treatment of Cigarette Tar Wastewater by Zero Valent Iron Reduction   1. Introduction With the rapid development of my country's economy, the tobacco industry has developed rapidly. The wastewater produced in the cigarette production process contains a large amount of high-concentration harmful substances, which will cause serious environmental pollution if it is directly discharged into nature.  According to the survey and statistics of wastewater discharge status of cigarette factories in my country, the wastewater discharge volume of cigarette factories is 0.35-0.60m3 per box of cigarettes.  The most difficult to treat in tobacco wastewater is tar wastewater, which contains a large amount of organic matter, high COD and chromaticity, and poor biodegradability. At present, the treatment methods adopted by domestic cigarette factories in sewage treatment mainly include physicochemical treatment, biochemical treatment and the combination of the two.  In this study, zero-val