Burgess's blog

Original Title: Working Principle and Application of Various Centrifuges (Picture and Text Explanation Worth Collecting) Centrifugation is to use the strong centrifugal force generated by the high-speed rotation of the centrifuge rotor to accelerate the sedimentation rate of particles in the liquid and separate the substances with different sedimentation coefficients and buoyancy densities in the sample. Therefore, it is necessary to use the centrifuge to generate a strong centrifugal force to force these particles to overcome the diffusion and produce sedimentation movement.

Original Title: Simulating Reacting Flows in COMSOL In recent versions of COMSOL Multiphysics ®, we have added several new multiphysics interfaces, decomposed the basic physics interfaces into separate interfaces, and predefined the coupling between multiphysics fields in the "Multiphysics" node of the model tree. This update perfectly combines the flexibility of the basic physical field interface with the convenience of predefined multi-physical field coupling.

Original Title: Status of Waste Oil Regeneration and Brief Introduction of Its Process Technology Total Cumulative Title 1350 The status of waste oil regeneration and brief introduction of its technology Source: Guangdong Chemical Authors: Yu Yanyan, Yang Xin, Wang Jie Waste oil is a dihedron, which has the dual characteristics of pollution and resource: improper treatment will cause environmental pollution, and recovery and recycling will save energy and alleviate the pressure of resource shortage.

Original Title: Difference between Short-path Distillation and Molecular Distillation-Shanghai DEA Short-path distillation, "short path" refers to a shorter distance, in a broad sense, the evaporator adopts the design scheme that the distance from the evaporation surface to the condensation surface is less than 300 MM, which can be called a short-path distiller.

Original Title: 1020 Carbon Steel 1020 Round Steel Standard steel grade: 1020 carbon steel 1020CRS CS1020 ASTM1020 AISI1020 SAE1020 UNS1020 AMSE1020 1020 ASTM A29/A29M-2012 A108 1020 Chemical composition and mechanical properties: Expand the full text Carbon steel plate carbon steel bar carbon steel strip carbon steel wire CRS CS steel tensile plate tensile bar Low alloy steel carburizing steel alloy structural steel alloy structural steel bearing steel high carbon steel ASTM1020 AISI1020 SAE1020 UNS1020 AMSE1020 Boiler plate of carbon steel, low carbon steel, carbon structural steel, carbo

Original title: a quick method to calculate the sag of conductor! (Conscience Edition) Part1 Apprentice On a certain day in a certain month in a certain year, Anyway, when I was an apprentice, Go to the construction site with the old comrades of the unit. The owner asked us to estimate the conductor sag of a certain gear. The old Comrade took out his calculator. After pressing a few times, He said the answer confidently. I was shocked at that time! In my perception, Isn't calculating the sag of a conductor supposed to be like this?

Original Title: Clinical Application of Nitinol Wire Clinical Application of Nickel-Titanium Alloy Wire 1. It is used for the early alignment and leveling of the patient's dentition. Due to the superelasticity, shape memory performance and low stress-strain curve of the nitinol arch wire, the nitinol arch wire is routinely used as the initial arch wire in the orthodontic system in clinic at present, so that the discomfort of the patient will be greatly reduced.

Original Title: Analysis of Corrosion Resistance of Titanium Palladium Alloy Material in National Standard TA 9 and American Standard GR7 Titanium has strong corrosion resistance in many media, especially in neutral and oxidizing media, and can also be used in some dilute reducing acids, such as nitric acid of various concentrations from room temperature to boiling point.

Original Title: Analysis of Corrosion Resistance of Titanium Palladium Alloy Material in National Standard TA 9 and American Standard GR7 Titanium has strong corrosion resistance in many media, especially in neutral and oxidizing media, and can also be used in some dilute reducing acids, such as nitric acid of various concentrations from room temperature to boiling point.

Original Title: How Thin Is the World's Thinnest Made by 12.64 Million? | Consumer Goods Investment Recommendation of the Week This report monitors and studies the one-month situation of the current consumer goods market, and screens out five consumer goods with large fluctuations.