K index
Kitwe
China- US Road to Trade Negotiations
China and the United States, the two largest economies in the world, have long been at odds over trade. The two countries have different approaches to conducting business, different forms of government, and even different approaches to human rights. Indeed, ea......
23/06/2023 
1037 
Sophia
Kendall coefficient of harmony
Kendall’s Concordance Coefficient
Introduction
Kendall’s Concordance Coefficient is a measure of how two variables correlate, or correspond, with each other. It was developed by Maurice Kendall in 1950 and has been widely used in psychology, meteorology, and other statistical fields. Kendall’......
Key points of microhardness test
Microhardness Testing Overview
Microhardness testing is a specialized form of hardness testing that is used to measure the hardness of materials at very small scales. It is often used for measuring the hardness of materials such as metals and alloys, but can also be applied to other materials such......
Kinetic model of dissociation process
1. Introduction
Catalysis is a process by which the rate of a chemical reaction is increased due to the participation of a substance known as a catalyst. Examples of catalysis include the conversion of nitrogen into ammonia, oxidation of carbon monoxide into carbon dioxide, and the oxidation of a......
Keynesian long-term friend theory
Introduction
Douglas McGregor, an American social psychologist, developed the Theory X and Theory Y models in his 1960 book, The Human Side of Enterprise. This theory broadened the way in which employers studied their workers, revolutionizing the way that managers dealt with their employees. It w......
Kalman equation
Kalman Filter
Kalman Filter is an algorithm that is used to estimate unknown variables in a system. It is a recursive filter, which means it takes data collected over a period of time and dynamically adjusts its estimate of the unknown variable. The Kalman filter has many applications in various f......
Kinetics of Leaching Process
Emerging Out-Diffusion Dynamics 关于溶质渗透和浸出过程动力学
Diffusion, or the unrestricted or net movement of molecules or particles in the dissolved state from region to region, is an important process in physical, chemical and biological systems. It provides a fundamental explanation for the t......
Kondo effect
Near Field Communication Effect
Near Field Communication (or NFC) is a form of wireless technology that allows mobile phones and other electronic devices to communicate with each other over short distances (typically up to 10 cm). It was first developed in 2002 by Sony and Philips, with the goal ......
Kinetics of non-ferrous metallurgical reaction process
Introduction
Non-ferrous metal metallurgy is the extraction and refinement of metals from their simple raw materials or ore. It can involve a wide range of processes and complex chemical reactions. The complexity of these processes and the kinetics of their reaction can be affected by a range of ......
Kirchhoff stress tensor
The von Mises-Hencky–von Kármán tensor is a mathematical model that is used to describe the stress–strain field in an elastic body. It involves several properties, such as the principal stresses, strain invariants, and overall isotropy which a material may possess. The von Mises-Hencky–von K......
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