(1950). Concentration in the US Steel Industry. Doctoral Dissertation Unpublished, Columbia UniversityO. C. Herfindahl, "Concentration in the U.S. steel industry," Ph.D. dissertation, Columbia Univ., New York, 1950.Herfindahl O. Economics, vol PhD. New York: Columbia: 1950. Concentration in...
Concentration in the US steel industry O Herfindahl - 《Ph D》 被引量: 104发表: 1950年 A Study on the Degree of Concentration,Layout and Structure Optimization of the Iron and Steel Industry in China The degree of concentration and layout are two important aspects relative to the iron and ...
Abstract The USA was, for years, the scene of a measure of industry concentration or the dominance of key industries by a few operators (United States Census Bureau, n.d.) A merger and acquisition (M&A) drive drove this process and led to the emergence of visibly high concentration industri...
Starts from the present, I must study well. [translate] a爱就是两个人在一起 Loves is two people in the same place [translate] aMs-ct low dose scan study of incidence of lung cancer in the steel heavy industry area residents 女士ct肺癌的发生的低药量扫瞄研究在钢重工业区域居民 [translate]...
CO, as a chemically stable primary pollutant, is a characteristic indicator of various pollution sources, such as coal combustion, steel industry, gasoline vehicle emissions, and straw-burning. In recent years, with the implementation of pollution control plans such as the “Clean Air Action Plan”...
In the case of steel, which is the material of interest in this paper, the simplest alloy would be to study Fe-C. Such studies, are, however, computationally limited due to the lowcarbon concentrationof around 0.05%C. The inclusion of carbon, although minuscule in concentration, is expected...
Fibre-reinforced biocomposites usage has gained prominence over the past decade. Although higher fracture toughness was observed when fibres were added to biocomposites, material degradation could occur due to filler and fibre content intolerance in the biocomposite matrix. Optimisation of resin-fibre-fille...
Interesting Facts about Brine Concentration Technology Industry Increasing Oil and Gas Activities Globally Coal-to-chemicals, Food & Beverage, Landfill/Leachate, Mining, Oil & Gas, Power, Pulp & Paper, Refining & Petrochemicals, Steel, Textile and Others are major end-user industries of Brine Concen...
the effective specific gravity is small, and the striking effect is poor. However, due to the high content of solid mineral particles in concentrated mineral pulp, more materials are struck by steel balls. When the mineral pulp concentration is too high, the coarse particles in the mill sink ...
2. The contact parts of the equipment and materials are made of stainless steel, which has good corrosion resistance, durability and meets the requirements of GMP. 3. This series of products have novel design and unique structure. The scraper blade can be semicircular ...