Search results for keyword: believed
occupational cataract
Age-Related Cataract
Cataract is the leading cause of vision loss worldwide, especially in people aged 50 and older. Age-Related Cataract (ARCat) is the most common form of cataract, accounting for over half of all cases. It is an age-related condition that causes clouding of the eye’s natural le......
1026 
Sophie
Pressure Vessel Explosion Accident
Explosions of pressure vessels
Pressure vessels are closed containers designed to hold fluids or gas at a pressure that is much higher than the atmospheric pressure. They are widely used in numerous industries including chemical, petrochemical and pharmaceutical industries, as well as in many ene......
GB17266—1998 Dissolved acetylene gas cylinder filling station safety technical conditions
GB17266—1998 Dissolved Acetylene Gas Cylinder Filling Station Safety Technical Conditions
Dissolved acetylene is an inflammable and explosive gas that is widely used in electrical welding, cutting, heating, lighting and other fields. Acetylene gas is a colorless and odorless inflammable and expl......
Tantalum and niobium smelting flue gas treatment
Tin-Lead Smelting Smoke Treatment
The treatment of smoke emitted from tin-lead smelting includes multiple approaches and processes, often rooted in the use of specialized equipment. A successful approach to the treatment of smoke commonly begins with an analysis to measure the exact nature and co......
Petro
Introduction
Petroleum has been described as a ‘tainted blessing’ for the global economy. On one hand, it is a vital source of energy that is needed for development. On the other hand, overdependence on its use has been detrimental to the environment and human health in numerous ways.
History
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tailings pipe
Tailings are the waste products of mining and mineral processing. They are produced by extracting minerals from ore, then processing them into a useful form. Tailings are often created in the form of a slurry, which is a watery suspension containing finely-ground rock particles and other materials......
Research progress of chromium-free passivation
Research Progress of Non-Chrome Passivation
Abstract
As a process of protecting the surface of metal or alloy materials, passivation plays an important role in application industries due to its low cost and high efficiency. Chromium-based passivation is commonly used in various industrial applic......
A new technology that can produce hydrogen as fuel energy
New Technology for Producing Hydrogen Fuel Energy
Hydrogen is the most abundant element in the universe and is considered the cleanest fuel source available. It produces no carbon dioxide, nitrogen oxides, or other greenhouse gases when it is burned, making it a much more attractive option than ......
Preparation of White Carbon Black from Industrial Waste Residue
The Preparation of Activated Carbon from Industrial Waste
Activated carbon is a very useful material that is used in a number of applications, such as water treatment, air purification, and odor control. One of the most common sources of activated carbon is wood and coal. However, in recent year......
Chinese ancient timer time measuring or indicating apparatus in ancient Ch
Time Measurement in Ancient China
Time has always been an essential part of human life. From sunrise to sunset, societies have come up with various ways to measure the passing of time. In ancient China, time measurement was an important part of daily life as well as an essential part of Chinese ......
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