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燃煤采制化管理的“阳光操作”实践
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作者 尚蓓蕾 《企业改革与管理》 2015年第10X期215-216,共2页
本文结合火力发电厂燃料采制化的工作实际,积极进行探索和创新,提出了管理规范、操作透明、运转高效的"阳光操作"模式,在火力发电厂燃料采制化的工作实际中取得了显著的成效,在当前电力体制不断深化的今天,对火力发电厂降低... 本文结合火力发电厂燃料采制化的工作实际,积极进行探索和创新,提出了管理规范、操作透明、运转高效的"阳光操作"模式,在火力发电厂燃料采制化的工作实际中取得了显著的成效,在当前电力体制不断深化的今天,对火力发电厂降低成本、规范管理、提升形象、提高市场竞争力很有借鉴意义。 展开更多
关键词 燃料 制化管理 创新 阳光操作
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Anti-synchronization in Different Hyperchaotic Systems 被引量:1
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作者 DOU Fu-Quan SUN Jian-An DUAN Wen-Shan 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第10期907-912,共6页
Based on active control theory, anti-synchronization between two different hyperchaotic systems is investigated. The sufficient conditions for achieving anti-synchronization of two different hyperchaotic systems are d... Based on active control theory, anti-synchronization between two different hyperchaotic systems is investigated. The sufficient conditions for achieving anti-synchronization of two different hyperchaotic systems are derived. Moreover, numerical simulations are presented for hyperehaotic Lorenz-Chen system, hyperchaotic Lorenz-Lu system, and hyperchaotic Chen Lu system to verify the effectiveness and feasibility of the proposed anti-synchronization scheme. 展开更多
关键词 ANTI-SYNCHRONIZATION hyperchaotic system active control
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Superoxide dismutase prevents development of adenocarcinoma in a rat model of Barrett's esophagus 被引量:5
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作者 Elena Piazuelo Carmelo Cebrián +4 位作者 Alfredo Escartín Pilar Jiménez Fernando Soteras Javier Ortego Angel Lanas 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第47期7436-7443,共8页
AIM: To test whether antioxidant treatment could prevent the progression of Barrett's esophagus to adenocarcinoma. METHODS: In a rat model of gastroduodenoesophageal reflux by esophagojejunal anastomosis with gastr... AIM: To test whether antioxidant treatment could prevent the progression of Barrett's esophagus to adenocarcinoma. METHODS: In a rat model of gastroduodenoesophageal reflux by esophagojejunal anastomosis with gastric preservation, groups of 6-10 rats were randomized to receive treatment with superoxide dismutase (SOD) or vehicle and followed up for 4 too. Rat's esophagus was assessed by histological analysis, superoxide anion and peroxinitrite generation, SOD levels and DNA oxidative damage. RESULTS: All rats undergoing esophagojejunostomy developed extensive esophageal mucosal ulceration and inflammation by mo 4. The process was associated with a progressive presence of intestinal metaplasia beyond the anastomotic area (9% 1st mo and 50% 4th too) (94% at the anastomotic level) and adenocarcinoma (11% 1^ST mo and 60% 4th too). These changes were associated with superoxide anion and peroxinitrite mucosal generation, an early and significant increase of DNA oxidative damage and a significant decrease in SOD levels (P〈0.05). Exogenous administration of SOD decreased mucosal superoxide levels, increased mucosal SOD levels and reduced the risk of developing intestinal metaplasia beyond the anastomotic area (odds ratio = 0.326; 95%CI: 0.108-0.981; P = 0.046), and esophageal adenocarcinoma (odds ratio = 0.243; 95%CI: 0.073-0.804; P = 0.021). CONCLUSION: Superoxide dismutase prevents the progression of esophagitis to Barrett's esophagus and adenocarcinoma in this rat model of gastrointestinal reflux, supporting a role of antioxidants in the chemoprevention of esophageal adenocarcinoma. 展开更多
关键词 Barrett's esophagus Esophageal adenocarcinoma Free radicals Oxidative damage Superoxide dismutase
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Multi-agent Systems and Cloud Computing for Controlling and Managing Chemical and Food Processes 被引量:1
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作者 Pavel Burian 《Journal of Chemistry and Chemical Engineering》 2012年第12期1121-1135,共15页
Cloud computing can offer a very powerful, reliable, predictable and scalable computing infrastructure for the execution of MAS (multi-agent systems) implementing complex agent-based applications such when modelling... Cloud computing can offer a very powerful, reliable, predictable and scalable computing infrastructure for the execution of MAS (multi-agent systems) implementing complex agent-based applications such when modelling, simulation and real-time running of complex systems must be provided. Multi-agent systems appears as an adequate approach to current challenges in many areas. Between important qualities of MAS also belongs to, that they are open, interoperable, and heterogenous systems. The agent is active, a program entity, has its own ideas how to perform the tasks of the own agenda. Agents: perceive, behave "reasonably", act in the environment, communicate with other agents. Cloud infrastructures can offer an ideal platform where run MAS systems simulations, applications and real-time running because of its large amount of processing and memory resources that can be dynamically configured for executing large agent-based software at unprecedented scale. Cloud computing can help chemical and food companies drive operational excellence; meet growing and changing customer demands; accelerate new product innovation and ramp-to-volume manufacturing in key markets; reduce IT spending; manage and mitigate supply chain risks; and enable faster and more flexible delivery of new IT system. Production type of SOC (service-oriented computing) can be inspired by a "Cloud", for the production of "Cloud" offers an attractive and natural solutions in several computing trends such as delivery system over the Internet, use of utilities, flexibility, virtualization, a "grid" distributed computing, outsourcing, Web 2.0, etc.. Production of the "Cloud" is also considered as a new multidisciplinary field that includes "network" production, virtual manufacturing, agile manufacturing, and of course cloud computing. Examples of cloud computing and MAS applications in food and chemistry development and industry, proposition of using multi-agent systems in the control of batch processes, modified ACO (ant colony optimization) approach for the diversified service allocation and scheduling mechanism in cloud paradigma, examples of applications in a business area were studied in the paper. 展开更多
关键词 MAS cloud computing UML (unified modelling language) FIPA (foundation for intelligent physical agents) Jadex(MAS).
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Distinction between short-segment Barrett's esophageal and cardiac intestinal metaplasia 被引量:1
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作者 Gui-Sheng Liu Jun Gong +3 位作者 Peng Cheng Jun Zhang Ying Chang Lei Qiang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第40期6360-6365,共6页
AIM: To investigate the roles of mucin histochemistry, cytokeratin 7/20 (CK7/20) immunoreactivity, clinical characteristics and endoscopy to distinguish short- segment Barrett's esophageal (SSBE) from cardiac in... AIM: To investigate the roles of mucin histochemistry, cytokeratin 7/20 (CK7/20) immunoreactivity, clinical characteristics and endoscopy to distinguish short- segment Barrett's esophageal (SSBE) from cardiac intestinal metaplasia (CIM). METHODS: High iron diamine/Alcian blue (HID/AB) mucin-histochemical staining and immunohistochemical staining were used to classify intestinal metaplasia (IN) and to determine CK7/20 immunoreactivity pattern in SSBE and CIM, respectively, and these results were compared with endoscopical diagnosis and the positive rate of gastroesophageal reflux disease (GERD) symptoms and H pylori infection. Long-segment Barrett' s esophageal and IM of gastric antrum were designed as control. RESULTS: The prevalence of type III IM was significantly higher in SSBE than in CIM (63.33% vs 23.08%, P〈0.005). The CK7/20 immunoreactivity in SSBE showed mainly Barrett's pattern (76.66%), and the GERD symptoms in most cases which showed Barrett' s pattern were positive, whereas H pylori infection was negative. However, the CK7/20 immunoreactivity in CIM was gastric pattern preponderantly (61.54%), but there were 23.08% cases that showed Barrett's pattern. H pylori infection in all cases which showed gastric pattern was significantly higher than those which showed Barrett' s pattern (63.83% vs 19.30%, P〈0.005), whereas the GERD symptoms in gastric pattern were significantly lower than that in Barrett's pattern (21.28% vs 85.96%,P〈O.O05). CONCLUSION: Distinction of SSBE from CIM should not be based on a single method; however, the combination of clinical characteristics, histology, mucin histochemistry, CK7/20 immunoreactivity, and endoscopic biopsy should be applied. Type III IM, presence of GERD symptoms, and Barrett's CK7/20 immunoreactivity pattern may support the diagnosis of SSBE, whereas non-type III IM, positive H pylori infection, and gastric CK7/20 immunoreactivity pattern may imply CIM. 展开更多
关键词 Short-segment Barrett's esophageal Cardiacintestinal metaplasia Cytokeratin 7/20 immunoreactivity
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Ecological control of forest pest: a new strategy for forest pest control 被引量:4
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作者 LIANG Jun ZHANG Xing-yao 《Journal of Forestry Research》 SCIE CAS CSCD 2005年第4期339-342,共4页
In comparison with integrated pest management and chemical control, the authors put forward a new strategy of forest pest control, named ecological control of forest pest (ECFP). This paper reviewed the development ... In comparison with integrated pest management and chemical control, the authors put forward a new strategy of forest pest control, named ecological control of forest pest (ECFP). This paper reviewed the development history, summarized the concept and principles of ECFP, discussed the technology and methods of ECFP, and evaluated the ECFP and its application conditions. 展开更多
关键词 Ecological control of forest pest (ECFP) Chemical control Integrated pest management Ecosystem management
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Dynamic method for identifying customization level
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作者 QIAO Yong-zhong TANG Wei-qin ZHANG Yin 《Chinese Business Review》 2008年第1期45-48,共4页
Mass Customizations (MC) require the enterprise to identify quickly and precisely the product customization level. On one side, the enterprise could avoid manufacturing products which cannot be sold out and cut the ... Mass Customizations (MC) require the enterprise to identify quickly and precisely the product customization level. On one side, the enterprise could avoid manufacturing products which cannot be sold out and cut the production cost; on the other side, the enterprise could meet customer requirements as fast as possible. However, there is no perfect method for identifying the customization level till now. A new dynamic method is presented to solve this problem through gradual thought and management information system technology. The method is capable for promptly determining and alerting the product customization level. 展开更多
关键词 customization level degree of customization mass customizations
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VPLS Based Quality and Cost Control for Tennessee Eastman Process 被引量:1
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作者 宋凯 王海清 李平 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2005年第1期62-67,共6页
Product quality and operation cost control obtain increasing emphases in modern chemical system engineering. To improve the fault detection power of the partial least square (PLS) method for quality control, a new QRP... Product quality and operation cost control obtain increasing emphases in modern chemical system engineering. To improve the fault detection power of the partial least square (PLS) method for quality control, a new QRPV statistic is proposed in terms of the VP (variable importance in projection) indices of monitored process variables, which is significantly advanced over and different from the conventional Q statistic. QRPV is calculated only by the residuals of the remarkable process variables (RPVs). Therefore, it is the dominant relation between quality and RPV not all process variables (as in the case of the conventional PLS) that is monitored by this new VP-PLS (VPLS) method. The combination of QRPV and T2 statistics is applied to the quality and cost control of the Tennessee Eastman (TE) process, and weak faults can be detected as quickly as possible. Consequently, the product quality of TE process is guaranteed and operation costs are reduced. 展开更多
关键词 partial least squares method Tennessee Eastman process statistical quality control cost control on-line monitoring
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The Redesign of the Business Model Based on the Structural Perspective
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作者 Ding Ning Song Yingge Zhang Yijin 《Chinese Business Review》 2013年第6期407-413,共7页
At present, whether internally or abroad, whether in the theory or business, there is a lack of a unified understanding about the basic concepts of structural system and theoretical category of enterprise business mod... At present, whether internally or abroad, whether in the theory or business, there is a lack of a unified understanding about the basic concepts of structural system and theoretical category of enterprise business model, and its theoretical analysis framework has not been built up, it is the exploratory phase of the model research in the mass. This study aims to analyze the formation mechanism, action mechanism, and evolution mechanism about the business model from the perspective of structure, and designs the enterprise business model architecture and forms a system, besides, explores approaches and strategies about enterprise carrying out business model innovation, and does beneficial bedding in order to use and improve the theoretical system in the process of the enterprise management practice. The significance of this study is to provide analytical methods and tools for the business model questions in the enterprise management practice. This paper firstly defined the connotation of enterprise business model and summarized the seven characteristics of the corporate business model. On the basis of outlining the enterprise business model design theory, the structural design of the corporate business model is mainly discussed. This paper designed the structure of the business model on modular perspective, proposed four constituent units and nine elements of enterprise business model structure system. Through the design of the enterprise business model structure and analysis of the elements that constitute structure, provide the basis for the transformation of innovative enterprise business model, or both enterprise business models, avoid the lack of elements of the enterprise business model structure and lead to business failure. Finally, the paper concludes with the five core strategies for the implementation of the enterprise business model design. 展开更多
关键词 analysis of methods enterprise business model STRUCTURE REDESIGN
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Cowbirds, conservation, and coevolution: potential misconceptions and directions for future research
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作者 Brian D.PEER James W.RIVERS Stephen I.ROTHSTEIN 《Chinese Birds》 CSCD 2013年第1期15-30,共16页
Avian brood parasitism is a model system for studies of coevolution and ecological interactions between parasites and their hosts. However, recent work may have led to misconceptions concerning the Brown-headed Cowbir... Avian brood parasitism is a model system for studies of coevolution and ecological interactions between parasites and their hosts. However, recent work may have led to misconceptions concerning the Brown-headed Cowbird (Molothrus ater), the most widely studied brood parasitic bird in the world, and its effects on host species. Potential misconceptions about this species that could affect management issues are as follows: cowbird populations are increasing; cowbirds are relatively new to North America; recently exposed hosts are defenseless against parasitism; cowbirds have caused widespread declines of songbirds; and cowbird control is always effective in increasing the size of endangered host populations. Potential coevolutionary misconceptions are that cowbirds are typically 'host tolerant'; cowbirds evict host nestmates; and the mafia effect is widespread. It is important to clarify these issues because such misconceptions could hinder our understanding of parasite-host interactions, and thus obscure the direction of basic research and of management efforts taken to limit cowbird impacts on endangered species. We discuss these issues and suggest future research directions to enhance our understanding of this fascinating species. 展开更多
关键词 Brown-headed Cowbird coevolution cowbird control endangered species host tolerant MAFIA Molothrus ater nestling eviction
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Localized Manufacture of Nuclear Power Equipment in China
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作者 许连义 《Electricity》 2004年第1期26-29,共4页
The paper expresses the view that China's essential way out for developing nuclear power lies in localization of manu facture, based on her technical level and capability in designing and manufacturing nuclear pow... The paper expresses the view that China's essential way out for developing nuclear power lies in localization of manu facture, based on her technical level and capability in designing and manufacturing nuclear power equipment. Moreover, the paper opines that domestically manufactured nuclear power equipment has a certain competitive potential with respect to quality and price, the crux lying in the neces sity of reforming the management system of nuclear power. 展开更多
关键词 nuclear power unit DESIGN MANUFACTURE LOCALIZATION
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Research on New University Education Management Methods based on the Combination of Humanized and Institutionalized
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作者 Ming Yuemei 《International Journal of Technology Management》 2015年第9期99-101,共3页
In this paper, we conduct research on new university education management methods based on the combination of humanized and institutionalized. Modem university education management, system management and the organic i... In this paper, we conduct research on new university education management methods based on the combination of humanized and institutionalized. Modem university education management, system management and the organic integration of humanistic care is under the new period of development, university education management to sustainable development as the main direction of the management. System and manage all exist, man and man is the subject and purpose of system and management. The construction of system, arrangement and operation shall be at the center of the reality of human and highlight the cultural characteristics of follow the characteristic of the knowledge in the differentiation and specialization. 展开更多
关键词 Education Management University and College Humanized and Institutionalized.
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Rational Analysis of Management Accounting Implementation in China's Government Units
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作者 Xu Jiayu Lu Yonghua 《Journal of Modern Accounting and Auditing》 2017年第3期93-98,共6页
The implementation of management accounting in China's government units is an inevitable requirement of economic development and the important deployment of efficient government establishment. Up to now, China has ma... The implementation of management accounting in China's government units is an inevitable requirement of economic development and the important deployment of efficient government establishment. Up to now, China has made a lot of theoretical explorations and tried about management accounting practice in government units. But in practice, there are still some shortcomings. Therefore, based on the thought of Accounting Research Methodology written by Professor Lu Yonghua, this article carries out a comprehensive, systematic, in-depth and concrete study on the implementation of management accounting in China's government units. This paper argues that there are some deficiencies in management accounting practice, including lack of a complete government management accounting system, the failure of combining management accounting implementation with specific national conditions, limitations of government management accounting itself, resistance existing in government management accounting implementation, and the low quality of management accounting practitioners. In this regard, this research paper learns from foreign experience and puts forward some corresponding improvement suggestions from the perspective of legislation, empirical research, information construction, education investment and so on. 展开更多
关键词 government units management accounting Chinese characteristics
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Toyota Motor Corporation: Organizational Culture
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作者 Sergey Sosnovskikh 《Journal of Philosophy Study》 2016年第7期442-454,共13页
This paper investigates the organizational culture of one of the largest auto manufacturers in the world Toyota Motor Corporation using various corporate culture and management models. The investigation was conducted ... This paper investigates the organizational culture of one of the largest auto manufacturers in the world Toyota Motor Corporation using various corporate culture and management models. The investigation was conducted in 2009 using qualitative analysis with the help of various secondary sources. The study reveals that the company's management style can be characterized as the Family type that implies collectivistic society with male domination, strict rules and laws at work, and long-term orientation. It is also based on several essential principles, such as continuous improvement and learning, respect for people, mutual trust, and teamwork. Two core elements of the Toyota's success are technological innovations and qualified human resources. 展开更多
关键词 Toyota Motor Corporation organizational culture management model Japanese culture HOFSTEDE KAIZEN
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Corporate Entrepreneurship in Pharma R&D Organizational Transformations
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作者 Murta Dibirov 《Journal of Modern Accounting and Auditing》 2016年第10期522-529,共8页
This multiple-case study examined factors that could contribute to a richer understanding of top managers' perceptions on maintaining high-performance teams in Pharma R&D. In addition, this multiple-case study inves... This multiple-case study examined factors that could contribute to a richer understanding of top managers' perceptions on maintaining high-performance teams in Pharma R&D. In addition, this multiple-case study investigated top managers' perceptions of building opportunity-based entrepreneurial culture in organizations during strategic change, considered as a critical factor for organizations during change, the results of which can be used to guide management in preventing destructive actions of business non-loyalty. Following, this multiple-case study examined the management of change within the corporate entrepreneurship literature as a means of helping organizations improve practical intelligence of defining growth goals and new enterprise growth management processes and procedures, including those relevant to change, the way they function, and formal and informal rules protecting adequacy of governance arrangements as well as the organizational culture. Participant responses to the interview question regarding capability to maintain high-performing teams resulted in themes regarding role of leadership in risk management approach, leadership development challenges, trust and commitment in inter-fLrm relationships, as being the top managers' perceptions and the attitudes in outsourcing R&D industry sector since the enactment of the strategic change. 展开更多
关键词 corporate entrepreneurship organizational change high-performing teams top managementperceptions
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Energy Recovery from MSW Treatment by Gasification and Melting Technology
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作者 Fabrizio Strobino Alessandro Pini Prato +1 位作者 Diego Ventura Marco Damonte 《Journal of Energy and Power Engineering》 2013年第5期805-817,共13页
The increase of waste production, joined to the difficulties concerning both the identification of new disposal sites and the construction of big conventional incinerators, led in recent years to the development of ne... The increase of waste production, joined to the difficulties concerning both the identification of new disposal sites and the construction of big conventional incinerators, led in recent years to the development of new technologies for waste management such as gasification and melting treatments. The possibility to introduce in the Italian context the DMS (direct melting system) technology, designed and manufactured by Nippon Steel Engineering Co. Ltd., has been taken into account for the scope of proposed work. DMS technology consists in MSW gasification, slags melting and combustion of the syngas produced, with the consequent generation of electric energy through a steam cycle. The system minimizes environmental impact, thanks to an effective recycling of useful resources such as inert melted slags and metals, featuring high flexibility in terms of treatment capacity due to its modular design. The aim of this article is to consider different plant configurations in order to optimize the energy recovery downstream the DMS module. As a case study, landfill gas exploitation integrated in the DMS plant will be considered as a typical situation that could occur in the Italian scenario. The energetic input provided by the biogas allows improving the thermo-economic performances according to market incentives. 展开更多
关键词 DMS GASIFICATION landfill gas MELTING municipal solid waste recycling slag.
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Eureka Webair: Web-Based Air Quality Management, Real-Time Forecasting and Emission Control Optimization
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作者 Fedra Kurt Schwarz-Witwer Christina 《Journal of Environmental Science and Engineering(A)》 2013年第4期209-228,共20页
For the assessment and management of regional to local air quality, an integrated environmental management information system was built within the multi national Eureka project 3266 Webair, http://www.ess.co.at/WEBAI... For the assessment and management of regional to local air quality, an integrated environmental management information system was built within the multi national Eureka project 3266 Webair, http://www.ess.co.at/WEBAIR. The system combines data bases and GIS and a range of coupled models and analytical tools that address a range of typical management problems and cover several levels of nesting from regional to city level and street canyons. The main functions are to support regulatory tasks, compliance monitoring, operational forecasting and reporting, impact assessment EIA (environmental impact assessment), SEA (strategic environmental assessment) and public information within one consistent framework. A major objective is the improvement of air quality through emission control. The integrated model system together with its shared data bases provides a reliable, consistent basis for the non-linear techno-economic and multi-criteria optimization of emission control strategies (including greenhouse gases and energy efficiency). A real-time expert system drives, supports and monitors the autonomous and interactive operations, and provides embedded QA/QC (quality assurance/quality control) functions for reliable operations and ease of use. 展开更多
关键词 Eureka webair emission control optimization operational forecasts scenario analysis cascading models.
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The Impact of Corporate Cultural Innovation on theEnterprise Management Innovation
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作者 Fenghua LI 《International Journal of Technology Management》 2015年第6期60-62,共3页
Enterprise Management Innovation has been a topic of concern to the business community and holds the same opinions to adhere to corporate management for innovation, but how to make companies management innovation beco... Enterprise Management Innovation has been a topic of concern to the business community and holds the same opinions to adhere to corporate management for innovation, but how to make companies management innovation becomes the business people must face. I believe that: enterprise management innovation is the innovation of the modem enterprise system, enterprise management innovation is necessary not only to establish modem corporate governance institutions, but also to establish a sound management system. Based on this idea, the purpose of this paper is to explore the enterprise management innovation, a true reflection of the necessity and creative approach to business management innovation. Through analysis, the enterprise management innovation is the scientific concept of development of specific applications in the field of enterprise management. Enterprise management innovation is the development of internal demand point of view, hoping to be helpful for Chinese enterprises to occupy a place in the fierce competition in the international market. 展开更多
关键词 business management INNOVATION CULTURE IMPACT
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Nitrous Oxide and Methane Fluxes During the Maize Season Under Optimized Management in Intensive Farming Systems of the North China Plain 被引量:1
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作者 SHI Yue-Feng WU Wen-Liang +4 位作者 MENG Fan-Qiao ZHENG Liang WANG Da-Peng YE Hui DING Guang-Wei 《Pedosphere》 SCIE CAS CSCD 2014年第4期487-497,共11页
Addressing concerns about mitigating greenhouse gas (GHG) emissions while maintaining high grain yield requires improved management practices that achieve sustainable intensification of cereal production systems. In... Addressing concerns about mitigating greenhouse gas (GHG) emissions while maintaining high grain yield requires improved management practices that achieve sustainable intensification of cereal production systems. In the North China Plain, a field experiment was conducted to measure nitrous oxide (N2O) and methane (CH4) fluxes during the maize (Zea mays L.) season under various agricultural management regimes including conventional treatment (CONT) with high N fertilizer application at a rate of 300 kg N ha-1 and overuse of groundwater by flood irrigation, optimal fertilization 1 treatment (OPTIT), optimal fertilization 2 treatment (OPT2T), and controlled-release urea treatment (CRUT) with reduced N fertilizer application and irrigation, and a control (CK) with no N fertilizer. In contrast to CONT, balanced N fertilization treatments (OPT1T, OPT2T, and CRUT) and CK demonstrated a significant drop in cumulative N20 emission (1.70 v.s. 0.43-1.07 kg N ha-l), indicating that balanced N fertilization substantially reduced N20 emission. The vMues of the N20 emission factor were 0.42%, 0.29%, 0.32%, and 0.27% for CONT, OPTIT, OPT2T, and CRUT, respectively. Global warming potentials, which were predominantly determined by N20 emission, were estimated to be 188 kg CO2-eq ha-1 for CK and 419-765 kg CO2-eq ha-1 for the N fertilization treatments. Global warming potential intensity calculated by considering maize yield was significantly lower for OPT1T, OPT2T, CRUT, and CK than for CONT. Therefore, OPTIT, OPT2T, and CRUT were recommended as promising management practices for sustaining maize yield and reducing GHG emissions in the North China Plain. 展开更多
关键词 balanced N fertilization CH4 global warming potential greenhouse gases maize yield N20
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An Advance in Complete Oxidation of Formaldehyde at Low Temperatures 被引量:2
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作者 Hua Tian Junhui He 《Science Foundation in China》 CAS 2009年第2期36-38,共3页
Editor's comments Formaldehyde (HCHO) emitted from chemical manufacturing plants including methanol-gasoline/diesel fuel vehicles and the construction and decoration materials is one of the major air pollutions, wh... Editor's comments Formaldehyde (HCHO) emitted from chemical manufacturing plants including methanol-gasoline/diesel fuel vehicles and the construction and decoration materials is one of the major air pollutions, which induces photochemical pollution and hazards human health. Great efforts have been made for the reduction or control of the emission of HCHO to satisfy the stringent environmental regulations. Now, a new study supported by the National Natural Science Foundation of China reports mesoporous manganese oxide with novel nanostructures for the decomposition of HCHO. The obtained manganese oxide nanomaterials showed high catalytic activities for oxidative decomposition of HCHO at low temperatures. Complete conversion of HCHO to CO2 and H2O were achieved, and no harmful by- products were detected in effluent gases. The catalytic activities of these nanomaterials are significantly higher than those of previously reported manganese oxide octahedral molecular sieve (OMS-2) nanorods , MnO x powders, and alumnina-supported mangnaese-palladium oxide catalysts. These results provide a new route for the removal of HCHO and other air pollutions. 展开更多
关键词 Manganese oxide honeycomb nanosphere hollow nanosphere FORMALDEHYDE OXIDATION
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