scholarly journals Management and Practice of Large-Scale Modern Coal Enterprises

2014 ◽  
Vol 1 (1) ◽  
pp. 13
Author(s):  
Wang An
Keyword(s):  
Large Scale ◽  
Coal Enterprises

Studies on Risk Pre-Warning and Emergency Treatment of Thermal Coal Supply Chain

2011 ◽  
Vol 97-98 ◽  
pp. 648-652
Author(s):  
Jing Lu ◽  
Jie Chen ◽  
Shi Long Qi
Keyword(s):  
Risk Factors ◽  
Supply Chain ◽  
Large Scale ◽  
Decision Makers ◽  
Thermal Coal ◽  
Chain Link ◽  
Svm Model ◽  
Coal Supply ◽  
Coal Enterprises ◽  
And Control

With the influence of many factors such as policy, economy and natural environment, large-scale coal enterprises face kinds of risk. The way how to identify and control the risk is becoming the focus of them. From the angle of supply chain link, with the method of questionnaire and on-the-spot investigation, twenty kinds of risk factors are identified and determined. A set of index system of coal supply chain evaluation is established. And the SVM model is used to evaluate the harm degree of risk factors. Risk control solutions-“three-level inventory” risk pre-warning and emergency response mechanism is formulated. The index of evaluation roundly considers risk factors in every link of supply chain. The “three-degree inventory” risk pre-warning and emergency treatments mechanism can provide effective reference for decision-makers.

Developing the Coal and Power Pool Project, Structuring Large-Scale Coal Enterprises

2013 ◽  
Vol 397-400 ◽  
pp. 2561-2564 ◽  
Author(s):  
Mei Song ◽  
Cong Zhang
Keyword(s):  
Electric Power ◽  
Large Scale ◽  
Coal Industry ◽  
Power Pool ◽  
Coal Enterprises

The coal and electric power are foundational energy industries in China, which are connected closely with each other. However there are contradictions and disputes between the two. To implement the coal and power pool project (CPPP) is an effective way to solve the problem. In accordance with the Twelfth Five-Year Plan, the coal industry will develop in large-scale, collectivized and modern direction. CPPP is one focus of the large modern coal enterprises’ steady construction, and makes much sense for coal enterprises, power companies and the overall energy situation in China. This article expounds the reasons, modes and significance of CPPP, and offers some relevant suggestions.

Exploration for the Low-Carbon Economic Development Model of Large-Scale Coal Enterprises Based on the SWOT Model

2012 ◽  
Vol 524-527 ◽  
pp. 2566-2570
Author(s):  
Zhong Wen Liu ◽  
Jing Hui Zhao ◽  
Peng Zhao Gao
Keyword(s):  
Economic Development ◽  
Large Scale ◽  
Swot Analysis ◽  
Coal Industry ◽  
Development Model ◽  
Low Carbon ◽  
Development Mode ◽  
Low Carbon Economy ◽  
Coal Enterprises ◽  
Carbon Economy

Facing sharp conflicts between the current resources, environment and economic development, large-scale coal enterprises adopting the traditional extensive development mode are unsuitable for the requirements of the times of low-carbon economy. Based on the SWOT analysis of the factors of low-carbon economic development of large coal enterprises, this paper is to put forward the framework structure of large-scale coal enterprises developing low carbon economy on the basis of the coal industry to a low carbon economy, and take the Xinwen Mining Group Company as an example to elaborate the new development model.

Comparison Research of Low Carbon Economy Development Mode of the Large-Scale Coal Enterprises

2012 ◽  
Vol 524-527 ◽  
pp. 3350-3354
Author(s):  
Xiu Li Sun ◽  
Pan Miao ◽  
Jun Hua Zhang
Keyword(s):  
Large Scale ◽  
Rapid Development ◽  
Industrial Clusters ◽  
Low Carbon ◽  
Development Mode ◽  
Low Carbon Economy ◽  
Development Models ◽  
Comparison Research ◽  
Coal Enterprises ◽  
Carbon Economy

With the rapid development of China's economy, a series of social problems such as energy crisis and global warming gradually have become prominent. In the consumption structure of our country, coal has the leading status. Therefore, achieving low-carbonation development of the coal enterprises is important for the whole society to realize sustainable development. On the basis of elaboration on low- carbon economy meanings and basic elements, this article analyzes the development models, like cleaner production, comprehensive utilization of resources, diversified development, industrial clusters, and low-carbon coal cities and hopes all of this would be useful for reference to China's coal enterprises.

Some comments about observations and image processing of comet 29P/Schwassmann-Wachmann 1

1999 ◽  
Vol 173 ◽  
pp. 243-248
Author(s):  
D. Kubáček ◽  
A. Galád ◽  
A. Pravda
Keyword(s):  
Image Processing ◽  
Large Scale ◽  
Harvard College ◽  
Oak Ridge ◽  
Large Scale Structures ◽  
Short Period Comet ◽  
Short Period ◽  
Scale Structures ◽  
Harvard College Observatory ◽  
Period Comet

AbstractUnusual short-period comet 29P/Schwassmann-Wachmann 1 inspired many observers to explain its unpredictable outbursts. In this paper large scale structures and features from the inner part of the coma in time periods around outbursts are studied. CCD images were taken at Whipple Observatory, Mt. Hopkins, in 1989 and at Astronomical Observatory, Modra, from 1995 to 1998. Photographic plates of the comet were taken at Harvard College Observatory, Oak Ridge, from 1974 to 1982. The latter were digitized at first to apply the same techniques of image processing for optimizing the visibility of features in the coma during outbursts. Outbursts and coma structures show various shapes.

Evolution of Large-Scale Coronal Structures

1994 ◽  
Vol 144 ◽  
pp. 29-33
Author(s):  
P. Ambrož
Keyword(s):  
Magnetic Field ◽  
Field Line ◽  
Large Scale ◽  
Coronal Magnetic Field ◽  
Source Surface ◽  
Solar Cycles ◽  
Characteristic Relationship ◽  
The Magnetic Field ◽  
Coronal Structures

AbstractThe large-scale coronal structures observed during the sporadically visible solar eclipses were compared with the numerically extrapolated field-line structures of coronal magnetic field. A characteristic relationship between the observed structures of coronal plasma and the magnetic field line configurations was determined. The long-term evolution of large scale coronal structures inferred from photospheric magnetic observations in the course of 11- and 22-year solar cycles is described.Some known parameters, such as the source surface radius, or coronal rotation rate are discussed and actually interpreted. A relation between the large-scale photospheric magnetic field evolution and the coronal structure rearrangement is demonstrated.

Large-scale Motion of Solar Filaments

2000 ◽  
Vol 179 ◽  
pp. 205-208
Author(s):  
Pavel Ambrož ◽  
Alfred Schroll
Keyword(s):  
Magnetic Flux ◽  
Proper Motion ◽  
Time Scale ◽  
Large Scale ◽  
Accuracy Of Measurements ◽  
Solar Filaments ◽  
General Movement ◽  
Scale Motion ◽  
Velocity Scatter

AbstractPrecise measurements of heliographic position of solar filaments were used for determination of the proper motion of solar filaments on the time-scale of days. The filaments have a tendency to make a shaking or waving of the external structure and to make a general movement of whole filament body, coinciding with the transport of the magnetic flux in the photosphere. The velocity scatter of individual measured points is about one order higher than the accuracy of measurements.

Some applications of electron beam microanalysis techniques in VLSI process evaluation

1983 ◽  
Vol 41 ◽  
pp. 160-161
Author(s):  
Simon Thomas
Keyword(s):  
Integrated Circuits ◽  
Process Evaluation ◽  
Large Scale ◽  
Technology Development ◽  
Analytical Techniques ◽  
Successful Implementation ◽  
Analysis Of Failures ◽  
Characterization Of Materials ◽  
Circuits Vlsi

Trends in the technology development of very large scale integrated circuits (VLSI) have been in the direction of higher density of components with smaller dimensions. The scaling down of device dimensions has been not only laterally but also in depth. Such efforts in miniaturization bring with them new developments in materials and processing. Successful implementation of these efforts is, to a large extent, dependent on the proper understanding of the material properties, process technologies and reliability issues, through adequate analytical studies. The analytical instrumentation technology has, fortunately, kept pace with the basic requirements of devices with lateral dimensions in the micron/ submicron range and depths of the order of nonometers. Often, newer analytical techniques have emerged or the more conventional techniques have been adapted to meet the more stringent requirements. As such, a variety of analytical techniques are available today to aid an analyst in the efforts of VLSI process evaluation. Generally such analytical efforts are divided into the characterization of materials, evaluation of processing steps and the analysis of failures.

Electron microscopy study of reactively sputter-deposited Ti/N films on silicon

1992 ◽  
Vol 50 (2) ◽  
pp. 1362-1363
Author(s):  
V. C. Kannan ◽  
A. K. Singh ◽  
R. B. Irwin ◽  
S. Chittipeddi ◽  
F. D. Nkansah ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Large Scale ◽  
Hexagonal Phase ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Process Conditions ◽  
Tin Films ◽  
Wide Range ◽  
Fcc Phase ◽  
Circuits Vlsi

Titanium nitride (TiN) films have historically been used as diffusion barrier between silicon and aluminum, as an adhesion layer for tungsten deposition and as an interconnect material etc. Recently, the role of TiN films as contact barriers in very large scale silicon integrated circuits (VLSI) has been extensively studied. TiN films have resistivities on the order of 20μ Ω-cm which is much lower than that of titanium (nearly 66μ Ω-cm). Deposited TiN films show resistivities which vary from 20 to 100μ Ω-cm depending upon the type of deposition and process conditions. TiNx is known to have a NaCl type crystal structure for a wide range of compositions. Change in color from metallic luster to gold reflects the stabilization of the TiNx (FCC) phase over the close packed Ti(N) hexagonal phase. It was found that TiN (1:1) ideal composition with the FCC (NaCl-type) structure gives the best electrical property.

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