scholarly journals Empirical Analysis of the Matching Degree between Energy Equipment Manufacturing and Market Demand: A Global Perspective

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Yirui Deng ◽  
Yimin Chen ◽  
Guowei Gao
Keyword(s):  
Electricity Market ◽  
Evaluation Method ◽  
Ideal Point ◽  
Global Perspective ◽  
Business Strategies ◽  
Ratio Method ◽  
Market Demand ◽  
Equipment Manufacturing ◽  
Matching Degree ◽  
Energy Equipment

The study of matching degree between energy equipment manufacturing and market demand is crucial for energy enterprises to adjust business strategies, expand market share, and develop sustainably. Considering that the current electricity market evaluation indicators are rarely selected from a global perspective and a single evaluation method may lead to one-sided results, this article takes the technology and equipment related to electric energy as the research object and selects six indicators, including technical standards, qualification certification, export methods, after-sales service, market concentration, and product concentration. By analyzing the supply and demand characteristics of major global regional markets and the situation of Chinese power enterprises in these markets, we propose matching model cluster including osculating value method, rank-sum ratio method, ideal point method, entropy value method, and efficacy coefficient method to conduct the matching degree study. The results show that the overall market matching degree of Chinese power companies is good, especially in Southeast Asia, Central Asia, and Africa. For markets with a low degree of matching, we analyze the reasons based on the matching indicators values to provide companies with corresponding strategies and recommendations.

scholarly journals Joint Investigation and 3D Visual Evaluation of Rock Mass Quality

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Haiping Yuan ◽  
Chenghao Chen ◽  
Yixian Wang ◽  
Hanbing Bian ◽  
Yan Liu
Keyword(s):  
Rock Mass ◽  
Quality Evaluation ◽  
Evaluation Method ◽  
Three Dimensional ◽  
Rock Mass Classification ◽  
National Standard ◽  
Ratio Method ◽  
Rock Mass Quality ◽  
Close Range ◽  
Mass Classification

In order to realize the high efficiency quality classification and three-dimensional visualization of engineering rock mass and to solve the technical difficulties of the traditional rock mass quality evaluation method such as high labor intensity, long process time consumption, many intervention processes such as scale measurement and manual calculation, and nonintuitive classification results, this paper puts forward a 3D visual rock mass quality evaluation method and system based on close-range photography, which optimizes the traditional rock mass quality evaluation method, makes the rock mass classification three-dimensional and visible, and realizes the estimation of unrevealed rock mass quality evaluation index. The research results show the following: (1) The method of storing joint information by close-range photography and extracting joint information by human-computer interaction improves the working efficiency and the process is safe and controllable compared with the traditional method of collecting fracture parameters. (2) Based on the statistical analysis of 97 groups of roadway survey data, the comprehensive statistical regression formula between BQ value of Chinese national standard and RMR value is given, and there is a good correlation between BQ value and RMR value of rock mass quality index. (3) Based on the power-inverse ratio method, the three-dimensional model of rock mass classification of the mine was established, and the cutting model obtained the current distribution diagram of rock mass quality grade, providing scientific reference for drilling, blasting, support, and other production design optimizations.

The Impact of Advanced Manufacturing Technology on a Mature Industry

1986 ◽  
Vol 200 (4) ◽  
pp. 247-255
Author(s):  
G R Mackenzie
Keyword(s):  
Manufacturing Technology ◽  
Business Strategies ◽  
Advanced Manufacturing Technology ◽  
Advanced Manufacturing ◽  
Market Demand ◽  
Manufacturing Companies ◽  
Tube Output ◽  
Manufacturing Competitiveness ◽  
The Uk ◽  
The Impact

TI Group plc is the largest private sector tube-maker in the UK. Group companies manufacture specialist and bearing tube as well as commodity welded and cold-drawn carbon seamless tube. A substantial proportion of tube output is exported from the UK. Continuing competitive pressures and the changing nature of demand from both home and export markets are forcing reappraisal of TI Group's approach to tube manufacture. TI Group sees the maintenance of manufacturing competitiveness as a key element of securing a profitable future, and policy now requires operating subsidiaries to give full weight to manufacturing considerations when formulating their business strategies. Against this background, TI Group tube manufacturing companies are devising plans and making fundamental changes to apply advanced manufacturing technology to their processes and manufacturing control systems so as to give a more flexible response to market demand whilst achieving further cost reductions.

Fuzzy Comprehensive Evaluation of Trading Regulatory Risk for a Unified and Interconnected Electricity Market in China

2014 ◽  
Vol 1070-1072 ◽  
pp. 1486-1490
Author(s):  
Yin Fang ◽  
Zhi Qiang Zhao ◽  
Chun Cheng Gao ◽  
Yong Dai ◽  
Shu Hong Shi
Keyword(s):  
Electricity Market ◽  
Risk Evaluation ◽  
Evaluation Method ◽  
Fuzzy Inference ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Risk Level ◽  
Risk Levels ◽  
Risk Indices ◽  
Evaluation Models

Trading regulatory risk arises prominently in the preliminary formulation of a unified and interconnected electricity market in China. Risk indices, evaluation models and methods as well as index weights are three important aspects of a comprehensive trading regulatory risk evaluation. In this paper, firstly, on the basis of the current electricity market environment in China, systematic trading regulatory risk indices used to quantify the risk level of the unified and interconnected electricity market are established. Secondly, evaluation models and a evaluation method of the trading regulatory risk are developed on the basis of synthesis of fuzzy inference and analytic hierarchy process (AHP). The fuzzy set approach is employed to identify the membership degree of each index to various risk levels, while the AHP is used to acquire the weights of the proposed trading regulatory risk indices. Finally, a simulation based case study on the trading regulatory risk evaluation is presented to illustrate the effectiveness of the proposed indices and the evaluation method.

scholarly journals Competitive Entry In Ontarios Deregulated Power Generation Industry

2012 ◽  
Vol 10 (2) ◽  
pp. 111
Author(s):  
Xiaoting Wang ◽  
Jun Yang
Keyword(s):  
Electricity Market ◽  
Optimal Number ◽  
Social Optimum ◽  
Market Demand ◽  
Equilibrium Outcome ◽  
Efficient Outcome ◽  
The Social ◽  
The Relationship ◽  
Equilibrium Number ◽  
Number Of Firms

In this paper we investigate the issues involved in the deregulation of an electricity market. The paper focuses on efficiency considerations, comparing the gap between the socially efficient outcome and that achievable by a market. We model this problem with two-sided uncertainty: the uncertain market demand and the uncertain cost of production. In each case, we find the social optimum and the equilibrium outcome of the deregulated market. Conditions when deregulated industry cannot generate the socially optimal number of firms are identified. The relationship between market demand, the degree of risk-aversion of private firms, and the equilibrium number of firms is investigated.

scholarly journals THE ANALYSIS OF TUNA RESOURCE UTILIZATION LEVEL WITH SPAWNING POTENTIAL RATIO METHOD IN SENDANGBIRU WATERS

2018 ◽  
Vol 9 (2) ◽  
pp. 597-604
Author(s):  
Made Mahendra Jaya ◽  
Budy Wiryawan ◽  
Domu Simbolon
Keyword(s):  
Resource Utilization ◽  
Ratio Method ◽  
Market Demand ◽  
Exploitation Rate ◽  
The Status ◽  
Tuna Fishing ◽  
Spawning Potential Ratio ◽  
Tuna Fisheries ◽  
Almost All ◽  
Tuna Fishery

High market demand for tuna drives the increasing intensity of tuna fishery in Sendangbiru waters. This occours also in almost all of Indonesian waters. High intensity of tuna fishing especially in Southern Java will threaten the preservation and sustainabilityof tuna resource. The decreasing trend of CPUE occured in the last 3 years (2013-2015) indicates that the exploitation rate of tuna resources in Sendangbiru was over fishing. This study aims to assess the status of tuna reasources due to fishing in Sendangbiru. The method used in this research is length based spawning potential ratio approaches or LB-SPR. Results from this study showed that the utilization of tuna resources in Sendangbiru is already at the level of over-exploited as shown by SPR value of 16.98 (less than 20%). Keywords : decreasing tren of CPUE, LB-SPR, Tuna fisheries

scholarly journals THE EFFECT OF COVID-19 ON TOURISM AND HOSPITALITY INDUSTRY IN MALAYSIA, RESURGENCE IN THE POST-PANDEMIC ERA: A CONCEPTUAL CRITERION

2020 ◽  
Vol 7 (2) ◽  
pp. 54-62
Author(s):  
Md.Ashraful Azam Khan ◽  
Haslinda Hashim
Keyword(s):  
Hospitality Industry ◽  
Online News ◽  
Lessons Learned ◽  
Point Of View ◽  
Global Perspective ◽  
Business Strategies ◽  
Comprehensive Review ◽  
Tourism And Hospitality Industry ◽  
Tourism And Hospitality ◽  
Hospitality Managers

Purpose of the study: This study aims to provide an overview of the key issues and challenges faced by the COVID-19 pandemic in the Malaysian tourism and hospitality industry, lessons learned from its devastating effects on the industry, and to contemplate possible solutions and strategies for post-pandemic recovery from a global perspective. Methodology: This is a conceptual study. In doing so, a comprehensive review of the most recent selected literature was gathered from academic and online news portal and relevant online platforms to extract the current state of the art knowledge. Based on the conceptual analysis, this study unfolds the uncertainties about the critical outcomes of the past events to provide some significant insights focusing on the COVID-19 pandemic, which is denoted as post-crisis analysis based on current and past events. Main Findings: Based on the comprehensive review of the related literature this paper finds that both from the academic and industry perspective that the emphasis should be given to study, teach and engage with current tourism-related concepts and theories to provide a holistic pedagogy to rebuild and transform the tourism and hospitality industry rather than maintaining the current tourism and hospitality trajectory in the post-Covid 19 pandemic age. Applications of this study: The practical implications of this paper is to assist the tourism and hospitality managers by providing a glimpse of the current and forthcoming challenges in the industry and to provide critical recovery strategies in the post-pandemic phase for the related tourism and hospitality operators to plan effective business strategies, activities and policies to adopt the new normal. Novelty/Originality of this study: This study exposes the vulnerability of an already gruesome Malaysia tourism and hospitality industry in the context of the Covid-19 pandemic based on the post-crisis analysis in relation to the current and past events, and consequently suggested some critical sustainable resilience strategies for a resurgence in the post-pandemic period from a global point of view.

Capturing S-Shape of Pump-Turbines by CFD Simulations Using an Anisotropic Turbulence Model

2019 ◽  
Author(s):  
Ernesto Casartelli ◽  
Luca Mangani ◽  
Armando Del Rio ◽  
Angelika Schmid
Keyword(s):  
Turbulence Model ◽  
Electricity Market ◽  
Vortex Formation ◽  
Model Performance ◽  
Reynolds Stress Model ◽  
Market Demand ◽  
Operational Flexibility ◽  
Transient Conditions ◽  
Sst Turbulence Model ◽  
The Right

Abstract Pump-turbines cope very well with modern electricity-market demand, having high operational flexibility and storage capabilities. Nevertheless, dynamic operation of these machines can lead to very challenging transient conditions, depending on the shape of the characteristic. Mechanical integrity can be correspondingly affected. Therefore assessment of the characteristic during the design phase, i.e. before model testing, is of crucial importance. In the past years different attempts to accurately compute the characteristic under steady (i.e. fix point) and transient conditions have been undertaken using RANS CFD. While the SST turbulence model has become the reference for machine design, it often fails for conditions close to or around instabilities. Its strength to accurately predict separation close to sound conditions (i.e. mild part- and over-load) is no more helpful. Under unstable conditions, which are characterized by continuous unsteady vortex formation, turbulence isotropy as assumed by linear two equation models is no more the right choice. Accordingly a turbulence model able to capture anisotropy, EARSM (Explicit Algebraic Reynolds Stress Model), has been implemented in an in-house code and used for the computation of the characteristic of various machines, stable and unstable, in order to assess the model performance. In this paper computations of three different machines in turbine mode are presented. Results using steady boundary conditions (BC) in the unstable region as well as transient BC like load-rejection and runaway are computed with EARSM, showing its superiority compared to linear two equation models.

scholarly journals Electricity market liberalization under the power of customer value evaluation and service model

2018 ◽  
Vol 38 ◽  
pp. 04001
Author(s):  
Hong Kun Bai ◽  
Jiang Bo Wang ◽  
Da Wei Song
Keyword(s):  
Electricity Market ◽  
Customer Value ◽  
Evaluation Method ◽  
Market Competition ◽  
Energy Levels ◽  
Main Body ◽  
Energy Storage Devices ◽  
Distributed Power ◽  
Value Evaluation ◽  
The Right

After the power reform No. 9 was released in March 2015, the state officially released the Opinions on the Implementation of the Reform on the Power Sales Side. From this document, we can see that the openness of sales of social capital to the electricity business, the sales side of the market competition through multiple ways to train the main competitors, the result is more users have the right to choose, sales service quality and user energy levels will significantly improve. With the gradual promotion of the electricity sales market, the national electricity sales companies have been established one after another. In addition to power grid outside the power generation companies, energy-saving service companies and distributed power companies may become the main selling power, while industrial parks, commercial complex, large residential area, industrial and commercial users, large industrial users in the new electricity demand appearing The new changes, some power customers have also self-built distributed power supply, installation of energy storage devices or equipment to participate in the transformation of the electricity market. The main body of the electricity sales market has gradually evolved from the traditional electricity generation main body to the multi-unit main body and emerged new value points. Therefore, the electricity sales companies need to establish a power customer value evaluation method and service mode to adapt to the new electricity reform, Provide supportive decision support.

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