In the course of exploiting its tourist resources and developing tourism industry in the early days in Wulingyuan, the government did not pay enough attention and no forceful measures were taken to control the environ...In the course of exploiting its tourist resources and developing tourism industry in the early days in Wulingyuan, the government did not pay enough attention and no forceful measures were taken to control the environment. As a result, a series of problems are produced. By analyzing the relationship between the tourism development in Wulingyuan scenic area and its environmental evolution, the paper exposes the basic reason why these environmental problems are produced, and according to the requirement of developing tourism, the paper puts forward some effective measures to reasonably control the distribution of the tourists flow and to protect tourist resources as well as the environment, so as to achieve the sustainable development of the area.展开更多
Medical record coding plays an important role in hospital management and the improvement of medical record coding quality is quite important to hospital management.The professional qualities of medical record coders s...Medical record coding plays an important role in hospital management and the improvement of medical record coding quality is quite important to hospital management.The professional qualities of medical record coders significantly affect the improvement of coding quality.At present,Medical record coders lack in professional knowledge,clinical knowledge and disease classification knowledge.In order to improve the quality of medical record coding,medical record coders should receive regular professional training,and hospital management departments should strengthen the monitoring of the quality of medical record coding.When encountering problems in the process of coding,medical record coders should take the initiative to consult and learn from clinicians.At the same time,medical record coders should cultivate a sense of responsibility,which can continuously improve their professional qualities and achieve the objective of improving the quality of medical record coding.展开更多
With the continuous improvement of peoples living standard, the problem of water pollution is getting more and more attention. Among them, the sewage treatment of urban environmental engineering has always been a prob...With the continuous improvement of peoples living standard, the problem of water pollution is getting more and more attention. Among them, the sewage treatment of urban environmental engineering has always been a problem that puzzles the builders of urbanization. In order to solve the water pollution problem in cities quickly and practically, it is necessary not only to establish specialized institutions for sewage treatment equipment, but also to comprehensively improve the professionalism and professional skills of sewage treatment technicians. Improve the sewage treatment system and conform to the development of sewage treatment industry. Below, the article discusses the effective measures of sewage treatment in urban environmental engineering.展开更多
For the high school stage is a period of heavy learning tasks for students and the tense learning atmosphere, students basically have endless problems to do and books to read every day. The learning pressure is very g...For the high school stage is a period of heavy learning tasks for students and the tense learning atmosphere, students basically have endless problems to do and books to read every day. The learning pressure is very great. Then high school art teaching can often play a role in relieving students learning pressure and promoting students mental health. Through art teaching, not only can the students thinking be diversified, but also the students psychological quality can be trained, thus relieving the pressure of study. At present, art teaching has yet to be expanded. Teachers should appropriately adjust art teaching measures according to the needs of students at the present stage to carry out art teaching more efficiently.展开更多
Objective: to analyze the main influencing factors and effective nursing measures of adverse psychological reactions in elderly patients with chronic obstructive pulmonary disease (COPD). Methods: 82 cases of elderly ...Objective: to analyze the main influencing factors and effective nursing measures of adverse psychological reactions in elderly patients with chronic obstructive pulmonary disease (COPD). Methods: 82 cases of elderly patients with COPD in our hospital were selected to carry out this study from March 2020 to March 2021. The factors of adverse reactions in 82 cases were analyzed, effective nursing measures were formulated, and the application effect of effective nursing measures was evaluated. Results: compared with mental work, happy harmony, junior high school education, public expense and mild COPD patients, physical work, divorce and widowhood, junior high school education, self-financing and severe COPD patients were significantly higher (P < 0.05);SAS score and SDS score of 82 patients after intervention were significantly lower than those before intervention (P < 0.05).Conclusion: to analyze the factors of adverse psychological reactions in elderly patients with COPD and formulate and implement effective nursing measures are conducive to improving the psychological state of patients, which has positive significance.展开更多
In 2021,approximately 537 million people suffered from diabetes mellitus(DM)globally,and this figure will increase to approximately 783 million within the next quarter-century.The increasing burden of DM is a pressing...In 2021,approximately 537 million people suffered from diabetes mellitus(DM)globally,and this figure will increase to approximately 783 million within the next quarter-century.The increasing burden of DM is a pressing global public health issue.Therefore,the early identification of high-risk groups and implementation of effective intervention measures is imperative.展开更多
With the rapid development of social economy, the environmental protection issue has been paid more and more attention. The coordinated development of economy and environmental protection is also the theme advocated a...With the rapid development of social economy, the environmental protection issue has been paid more and more attention. The coordinated development of economy and environmental protection is also the theme advocated all along. At the present stage, there are still many economic benefits brought about at the cost of destroying the environment. While developing the economy, it is accompanied by environmental destruction such as waste water and waste gas emissions. This paper studies and analyzes the existing problems and countermeasures of environmental testing technology for reference.展开更多
At the time of the rapid development of economy and society, the construction engineering of our country also ushered in the period of rapid development, and there is a growing concern about the cost of buildings such...At the time of the rapid development of economy and society, the construction engineering of our country also ushered in the period of rapid development, and there is a growing concern about the cost of buildings such as houses. In our country, the unit in charge of the construction cost management is the Housing and Construction Bureau, which is also the key to maintain the order of the construction market and promote the steady development of the construction industry. By using its function to supervise and manage the construction cost, the Housing and Construction Bureau can not only improve the construction quality, but also promote the process of our socialist modernization. Dynamic management can not only effectively control the cost of construction projects, but also provide a favorable basis for administrative approval and punishment, in order to maintain the rationality of project costs, and to ensure the quality and reliability of construction projects. In this paper, first of all, the principles to be followed by the dynamic management and control of construction projects and the main content of its management and control are described, and combined with the current situation of the dynamic management and control of construction project costs, the specific analysis of its existing problems, this paper creatively puts forward the optimization measures of the dynamic management and control of the construction cost in order to contribute to the orderly progress of the contemporary engineering projects in our country.展开更多
In the process of construction, a good building environment is very necessary, which not only ensures the smooth development of the project, but also ensures the safety of workers. In the previous construction, civili...In the process of construction, a good building environment is very necessary, which not only ensures the smooth development of the project, but also ensures the safety of workers. In the previous construction, civilization construction was just empty talk, which is also a common weakness in construction management today. The relevant specifications expressed herein will be carried out during the construction process. In the construction work of various construction companies in our country, civilization construction is often not paid enough attention. In fact, civilization construction represents a certain degree of technological innovation. In the process of engineering construction, civilized construction representatives have adopted new technologies, new processes and new construction methods, adopted new construction methods and improved technical equipment. Civilized construction management is an important step in the development of the construction industry.展开更多
The revolution of information technology within the p ast twenty years has dramatically changed the picture of our economy. Numerous n ew possibilities of communication have let competition advantages for many compa n...The revolution of information technology within the p ast twenty years has dramatically changed the picture of our economy. Numerous n ew possibilities of communication have let competition advantages for many compa nies and even advantageous macroeconomic consequences emerge on national and international level. Through newly developed information technologies the knowl edge base of market participants improves with a concurrent reduction of the inf ormation obtaining costs. As a result considerable competition advantages develo p for those companies acting in E-commerce networks. These advantages of the la test development lead to macroeconomic effects on national level, if the effecti veness and efficiency increasing possibilities are used more strongly than in ot her countries. Positive international effects arise since the allocation effic iency is increased through intensified competition between different market pa rticipants in various countries. This in turn leads to an increase in wo rldwide prosperity. This causal chain however is not yet realistic to the whole extent, as such an i ncreased transparency of information is not necessarily accepted by all market p articipants. Otherwise a considerable productivity increase would already have o ccurred in industrial countries. Overall the question arises, whether the change s in the competition situation make single enterprises technically more effectiv e, concurrently however deteriorate the efficiency of the entire market through informational asymmetries. To answer these and further questions and to measure the effectiveness and effic iency of various E-commerce networks an interdisciplinary analysis platform is to be developed. With the help of this platform, it should be possible to examin e single and macroeconomic questions, reveal temporal connections and to analyse aspects of business management and national economy, information management, em ployment politics and finance politics. For this, various part-models for the i ndividual knowledge disciplines have to be generated and brought together in the platform. This platform allows various users to make the right decisions (effec tiveness) with the help of the developed models and to competently estimate the effects (efficiency). Currently models of the individual knowledge disciplines (business management, e conomics, computer science) are being developed within the research project EEE. con. This project deals with the question of Supply Chain Management (SCM), E-P rocurement, with the implementation of inter-organisational information systems , as well as various market, competition and organisation models. The department of economics and computer science from Prof. Dr.-Ing. habil. W. Dangelmaier particularly deals with the development of an agent controlled SCM- communication model which is part of the E-commerce analysis platform. Both are described in this paper. Furthermore, a unified modelling language in order to allow a prototypic implementation of the analysis tool and to make the work with other project participants and external participants easier is decided upon wit hin this project.展开更多
In recent years, the macro-economy of Chinese enterprises has developed rapidly and the macro-environment has changed rapidly. It has directly promoted the great and important changes in the management structure of Ch...In recent years, the macro-economy of Chinese enterprises has developed rapidly and the macro-environment has changed rapidly. It has directly promoted the great and important changes in the management structure of Chinas traditional state-owned assets and securities investment system. The current state-owned assets investment management policy is continuously undergoing new adjustments. The financial operation risk management model of each major state-owned assets securities investment fund management company has gradually and rapidly developed towards diversified financial operation management. The sources of funds have gradually begun to be expanded in an all-round way. The investment industry has gradually diversified and matured. Based on the analysis of this hot issue as the main theoretical breakthrough point, this paper analyzes some prominent problems commonly existing in the financial operation risk management of large state-owned assets investment fund management co., ltd. at present, and puts forward some practical suggestions on this issue. I hope the content of this article can provide some new help for our friends in the relevant investment management industry.展开更多
Hirschmanniella oryzae is one of the most im-portant pathogenic nematodes of rice. Thereare few data on the Integrated Pest Manage-ment (IPM) of H. oryzae except for somestudies on the chemical control of this nema-to...Hirschmanniella oryzae is one of the most im-portant pathogenic nematodes of rice. Thereare few data on the Integrated Pest Manage-ment (IPM) of H. oryzae except for somestudies on the chemical control of this nema-tode. A study on the IPM of H. oryzae wascarried out in Guangzhou from 1991 to 1995.展开更多
In order to improve the management of university status in China,it is necessary to actively transform the student status management model,it should be student service,and it’s turned into restraint and motivation,th...In order to improve the management of university status in China,it is necessary to actively transform the student status management model,it should be student service,and it’s turned into restraint and motivation,the mode of student service as a supplement is transformed.Under the model of service and constraint and incentive,we should strengthen the current management mode of student status in colleges and universities.And under the new model,the data quality of student status can be guaranteed,so that students’academic safety and education and teaching order can be improved accordingly,establish a good learning atmosphere,strengthening management.This paper analyzes and probes into the problems existing in the management of university status in China,this paper expounds the main contents of university student status management,and put forward the effective measures to improve the current management of university status.展开更多
This paper presents analysis of a cost effective methodology using remotely sensed data analysed within a geographical systems (GIS) environment for mapping out </span><span style="font-family:Verdana;&q...This paper presents analysis of a cost effective methodology using remotely sensed data analysed within a geographical systems (GIS) environment for mapping out </span><span style="font-family:Verdana;">potential habitats of anthropod vectors responsible for trypanosomiasis in northern Nigeria. These geographical locations are areas with high population of livestock in Nigeria. </span></span><span style="font-family:Verdana;">Animal Trypanosomiasis </span><span style="font-family:Verdana;">is considered as </span><span style="font-family:Verdana;">an arthropod-borne viral disease which is </span><span style="font-family:Verdana;">endemic in about 37 countries of the sub-Saharan Africa and in particular northern Nigeria. </span><span style="font-family:Verdana;">This anthropod-borne viral disease </span><span style="font-family:Verdana;">remains a threat to both humans and livestock in many communities, and the outbreak of such diseases </span><span style="font-family:Verdana;">i</span><span style="font-family:Verdana;">s shown to relate to fluctuations in the changing climate</span><span style="font-family:Verdana;"> mostly experienced whenever there are changes in global precipitation</span><span style="font-family:Verdana;"> which </span><span style="font-family:Verdana;">also relates to changes in sea surface temperatures otherwise known as </span><span style="font-family:Verdana;">“</span><span style="font-family:Verdana;">El Niňo Southern Oscillations</span><span style="font-family:Verdana;">”</span><span style="font-family:Verdana;"> (ENSO). Monthly </span><span style="font-family:Verdana;">Satellite imageries in the form of Normalised Difference Vegetation Index (NDVI) at 250</span><span style="font-family:""> </span><span style="font-family:Verdana;">meters spatial resolution obtained from NASA-MODIS/CMD w</span><span style="font-family:Verdana;">ere</span><span style="font-family:Verdana;"> subjected to principal component analysis utilizing the standardized principal components within a GIS environment and supplemented with Digital Elevation Model (DEM) data in the analysis. Results from the maps showed </span><span style="font-family:Verdana;">that </span><span style="font-family:Verdana;">pockets of probable habitats of these anthropod vectors responsible for trypanosomiasis mostly located around forest islands characterized by dry woodland and savanna, and in some cases around gallery forests and few lowland and riverine areas. This study provides baseline information for policy makers in Nigeria and other stakeholders as a cost effective measure for mapping potential habitats for anthropod vectors responsible for trypanosomiasis in Northern Nigeria. Further studies are encouraged so as to clearly understand the magnitude and actual locations of the habitat of this vector and find ways of targeting their locations for minimizing or even eradicating these vectors.展开更多
With the current development and progress of the socialist marketing economy, the number of the private enterprises in our country increases constantly, and the development scale has been expanded constantly, which ha...With the current development and progress of the socialist marketing economy, the number of the private enterprises in our country increases constantly, and the development scale has been expanded constantly, which has become an important component for China＇s national economy, and making a huge contribution to promote the increase of China＇s national economy. In order to occupy a development location among the fierce market competition and expand the market share, the private enterprises in our country make many efforts constantly, such as strengthening and promotion of the internal management concept and the management mode, etc., which really obtains an obvious achievement and progress, however, due to the restriction of the various reasons, there are still many realistic problems existing in the financial cost management for the private enterprises, which restricts the sustainable, modern and scientific development step greatly, for the method on improving the financial cost management level in China＇s private enterprises and the guarantee of the pertinence and the efficiency for the financial cost management measures to be implemented in the private enterprises, it becomes the key problems which needs to be solved by the private enterprises currently.展开更多
In the process of promoting chemical production, only by ensuring the process of chemical production can we truly reduce the waste of resources and promote the sustainable development of the chemical industry. However...In the process of promoting chemical production, only by ensuring the process of chemical production can we truly reduce the waste of resources and promote the sustainable development of the chemical industry. However, there are some problems facing the development of chemical industry. Therefore, it is necessary to further optimize the construction process of chemical production in chemical engineering, improve the safety performance and environmental protection performance of chemical production, and comprehensively promote the sustainable development of chemical industry. This paper mainly focuses on the analysis and discussion of chemical production process in chemical engineering, firstly introduces the problems existing in the development process of chemical industry, then analyzes the characteristics of chemical engineering technology, further optimizes and improves the related process of chemical production, and finally puts forward the development trend of chemical production process.展开更多
Under the influence of the socialist market economy system, the traditional human resources management model of state-owned enterprises has been unable to adapt to the current economic development and innovation trend...Under the influence of the socialist market economy system, the traditional human resources management model of state-owned enterprises has been unable to adapt to the current economic development and innovation trend. In order to speed up the reform process of human resources management of state-owned enterprises, it is necessary to take this management work as an important part of the modern management system of state-owned enterprises. Through the gradual innovation of human resources management model, it is necessary to avoid large-scale reform. Reduce the impact on the state-owned enterprise's grain operation and management system, and further improve the state-owned enterprise's market competitiveness by actively complying with the economic development and innovation trend and adopting effective innovation methods and reform measures.展开更多
To research techniques for removing the water blocking effect caused by hydraulic applications in coal seams,the use of surfactants is proposed,based on the mechanics of the water blocking effect.Centrifugal experimen...To research techniques for removing the water blocking effect caused by hydraulic applications in coal seams,the use of surfactants is proposed,based on the mechanics of the water blocking effect.Centrifugal experiments were used to validate the effects of using surfactants;the results show that after dealing with vacuum saturation with water,the volume of micropores decreases,which results in a larger average pore size,and the volume of transitional pores,mesopores,macropores and total pores increases.Based on the distribution of pore size,the operation mode of ‘‘water infusion after gas extraction,then continuing gas extraction" is recommended to improve the volume of coal mine gas drainage.When the reflectance of vitrinite in coal samples is less than 1,using the surfactants Fast T,1631,APG,BS can mitigate the damage caused by the water blocking effect.But when the reflectance of vitrinite is larger than 1.4,the damage caused by the water blocking effect can be increased.When the surfactant CMC is used in hydraulic applications,the capillary forces of coal samples are almost negative,which means the capillary force is in the same direction as the gas extraction.The direction of capillary forces benefits the gas flow.So,using CMC can play an active role in removing the water blocking effect.Centrifugal experiments confirm that using CMC can effectively remove the water blocking effect,which has a beneficial effect on improving the gas drainage volume.展开更多
This article attempts to investigate the measure effect of rubble roadbed engineering in permafrost regions of Qinghai-Tibet Plateau. As a case study, Chaidaer-Muli Railway is used to evaluate the measure effect of ru...This article attempts to investigate the measure effect of rubble roadbed engineering in permafrost regions of Qinghai-Tibet Plateau. As a case study, Chaidaer-Muli Railway is used to evaluate the measure effect of rubble roadbed engineering in permafrost regions. The AHP(Analytic Hierarchy Process) method is thus employed to establish the evaluation indicator system. The evaluation factor is selected by analyzing the mutual relation between the permafrost environment and roadbed engineering. Thus, a hierarchical structure model is established based on the selected evaluation indices. Each factor is weighted to determine the status in the evaluation system, and grading standards are built for providing a basis for the evaluation. Then, the fuzzy mathematical method is introduced to evaluate the measure effect of rubble roadbed engineering in permafrost regions along the Chadaer-Muli Railway. Results show that most of the permafrost roadbed is in a preferable condition(b) along the Chaidaer-Muli Railway due to rubble engineering measures. This proportion reaches to 86.1%. The proportion in good(a), general(c) and poor states(d) are 0.0%, 7.5% and 6.4%, respectively, in all the evaluation sections along the Chaidaer-Muli Railway. Ground-temperature monitoring results are generally consistent with AHP-FUZZY evaluation results. This means that the AHP-FUZZY method can be applied to evaluate the effect of rubble roadbed engineering measures in permafrost regions. The effect evaluation of engineering measures will provide timely and effective feedback information for further engineering design. The series of engineering measures will more effectively protect permafrost stability.展开更多
An aerodynamic force and moment measurement was conducted in JF12 long-testduration detonation-driven shock tunnel of Institute of Mechanics,Chinese Academy of Sciences.The test duration of JF12 is 100–130 ms.The nom...An aerodynamic force and moment measurement was conducted in JF12 long-testduration detonation-driven shock tunnel of Institute of Mechanics,Chinese Academy of Sciences.The test duration of JF12 is 100–130 ms.The nominal Mach number is 7.0 and the exit diameter of the contoured nozzle is 2.5 m.The total enthalpy is 2.5 MJ/kg which duplicates the hypersonic flight conditions of Mach number 7.0 at 35 km altitude.The test model is the standard aerodynamic force model of 10° half-angle sharp cone.The length of the test model is 1500 mm and the weight is 57 kg.The aerodynamic forces were measured with a six-component strain balance.The angles of attack were set to be à5°,0°,5°,10° and 14°,respectively.The experimental results show that in the 100–130 ms test duration,the signals of strain balance have 3–4 complete vibration cycles.So,the aerodynamic forces and moments can be obtained directly by averaging the signals of balance without acceleration compensation.The force measurement error of repeatability of JF12 is less than 2%.The aerodynamic force coefficients of JF12 are in good agreement with those of conventional hypersonic wind tunnels.For this test model at Mach number 7.0 and total enthalpy of 2.5 MJ/kg,the real-gas effects on aerodynamic force characteristics are not very evident.展开更多
文摘In the course of exploiting its tourist resources and developing tourism industry in the early days in Wulingyuan, the government did not pay enough attention and no forceful measures were taken to control the environment. As a result, a series of problems are produced. By analyzing the relationship between the tourism development in Wulingyuan scenic area and its environmental evolution, the paper exposes the basic reason why these environmental problems are produced, and according to the requirement of developing tourism, the paper puts forward some effective measures to reasonably control the distribution of the tourists flow and to protect tourist resources as well as the environment, so as to achieve the sustainable development of the area.
文摘Medical record coding plays an important role in hospital management and the improvement of medical record coding quality is quite important to hospital management.The professional qualities of medical record coders significantly affect the improvement of coding quality.At present,Medical record coders lack in professional knowledge,clinical knowledge and disease classification knowledge.In order to improve the quality of medical record coding,medical record coders should receive regular professional training,and hospital management departments should strengthen the monitoring of the quality of medical record coding.When encountering problems in the process of coding,medical record coders should take the initiative to consult and learn from clinicians.At the same time,medical record coders should cultivate a sense of responsibility,which can continuously improve their professional qualities and achieve the objective of improving the quality of medical record coding.
文摘With the continuous improvement of peoples living standard, the problem of water pollution is getting more and more attention. Among them, the sewage treatment of urban environmental engineering has always been a problem that puzzles the builders of urbanization. In order to solve the water pollution problem in cities quickly and practically, it is necessary not only to establish specialized institutions for sewage treatment equipment, but also to comprehensively improve the professionalism and professional skills of sewage treatment technicians. Improve the sewage treatment system and conform to the development of sewage treatment industry. Below, the article discusses the effective measures of sewage treatment in urban environmental engineering.
文摘For the high school stage is a period of heavy learning tasks for students and the tense learning atmosphere, students basically have endless problems to do and books to read every day. The learning pressure is very great. Then high school art teaching can often play a role in relieving students learning pressure and promoting students mental health. Through art teaching, not only can the students thinking be diversified, but also the students psychological quality can be trained, thus relieving the pressure of study. At present, art teaching has yet to be expanded. Teachers should appropriately adjust art teaching measures according to the needs of students at the present stage to carry out art teaching more efficiently.
文摘Objective: to analyze the main influencing factors and effective nursing measures of adverse psychological reactions in elderly patients with chronic obstructive pulmonary disease (COPD). Methods: 82 cases of elderly patients with COPD in our hospital were selected to carry out this study from March 2020 to March 2021. The factors of adverse reactions in 82 cases were analyzed, effective nursing measures were formulated, and the application effect of effective nursing measures was evaluated. Results: compared with mental work, happy harmony, junior high school education, public expense and mild COPD patients, physical work, divorce and widowhood, junior high school education, self-financing and severe COPD patients were significantly higher (P < 0.05);SAS score and SDS score of 82 patients after intervention were significantly lower than those before intervention (P < 0.05).Conclusion: to analyze the factors of adverse psychological reactions in elderly patients with COPD and formulate and implement effective nursing measures are conducive to improving the psychological state of patients, which has positive significance.
基金supported by the Research Funds of the Center for Big Data and Population Health of IHM(grant number JKS2022015)the Key Scientific Research Fund of the Anhui Provincial Education Department(grant number2023AH050610)the Anhui Natural Science Foundation(grant number 1808085QH252)。
文摘In 2021,approximately 537 million people suffered from diabetes mellitus(DM)globally,and this figure will increase to approximately 783 million within the next quarter-century.The increasing burden of DM is a pressing global public health issue.Therefore,the early identification of high-risk groups and implementation of effective intervention measures is imperative.
文摘With the rapid development of social economy, the environmental protection issue has been paid more and more attention. The coordinated development of economy and environmental protection is also the theme advocated all along. At the present stage, there are still many economic benefits brought about at the cost of destroying the environment. While developing the economy, it is accompanied by environmental destruction such as waste water and waste gas emissions. This paper studies and analyzes the existing problems and countermeasures of environmental testing technology for reference.
文摘At the time of the rapid development of economy and society, the construction engineering of our country also ushered in the period of rapid development, and there is a growing concern about the cost of buildings such as houses. In our country, the unit in charge of the construction cost management is the Housing and Construction Bureau, which is also the key to maintain the order of the construction market and promote the steady development of the construction industry. By using its function to supervise and manage the construction cost, the Housing and Construction Bureau can not only improve the construction quality, but also promote the process of our socialist modernization. Dynamic management can not only effectively control the cost of construction projects, but also provide a favorable basis for administrative approval and punishment, in order to maintain the rationality of project costs, and to ensure the quality and reliability of construction projects. In this paper, first of all, the principles to be followed by the dynamic management and control of construction projects and the main content of its management and control are described, and combined with the current situation of the dynamic management and control of construction project costs, the specific analysis of its existing problems, this paper creatively puts forward the optimization measures of the dynamic management and control of the construction cost in order to contribute to the orderly progress of the contemporary engineering projects in our country.
文摘In the process of construction, a good building environment is very necessary, which not only ensures the smooth development of the project, but also ensures the safety of workers. In the previous construction, civilization construction was just empty talk, which is also a common weakness in construction management today. The relevant specifications expressed herein will be carried out during the construction process. In the construction work of various construction companies in our country, civilization construction is often not paid enough attention. In fact, civilization construction represents a certain degree of technological innovation. In the process of engineering construction, civilized construction representatives have adopted new technologies, new processes and new construction methods, adopted new construction methods and improved technical equipment. Civilized construction management is an important step in the development of the construction industry.
文摘The revolution of information technology within the p ast twenty years has dramatically changed the picture of our economy. Numerous n ew possibilities of communication have let competition advantages for many compa nies and even advantageous macroeconomic consequences emerge on national and international level. Through newly developed information technologies the knowl edge base of market participants improves with a concurrent reduction of the inf ormation obtaining costs. As a result considerable competition advantages develo p for those companies acting in E-commerce networks. These advantages of the la test development lead to macroeconomic effects on national level, if the effecti veness and efficiency increasing possibilities are used more strongly than in ot her countries. Positive international effects arise since the allocation effic iency is increased through intensified competition between different market pa rticipants in various countries. This in turn leads to an increase in wo rldwide prosperity. This causal chain however is not yet realistic to the whole extent, as such an i ncreased transparency of information is not necessarily accepted by all market p articipants. Otherwise a considerable productivity increase would already have o ccurred in industrial countries. Overall the question arises, whether the change s in the competition situation make single enterprises technically more effectiv e, concurrently however deteriorate the efficiency of the entire market through informational asymmetries. To answer these and further questions and to measure the effectiveness and effic iency of various E-commerce networks an interdisciplinary analysis platform is to be developed. With the help of this platform, it should be possible to examin e single and macroeconomic questions, reveal temporal connections and to analyse aspects of business management and national economy, information management, em ployment politics and finance politics. For this, various part-models for the i ndividual knowledge disciplines have to be generated and brought together in the platform. This platform allows various users to make the right decisions (effec tiveness) with the help of the developed models and to competently estimate the effects (efficiency). Currently models of the individual knowledge disciplines (business management, e conomics, computer science) are being developed within the research project EEE. con. This project deals with the question of Supply Chain Management (SCM), E-P rocurement, with the implementation of inter-organisational information systems , as well as various market, competition and organisation models. The department of economics and computer science from Prof. Dr.-Ing. habil. W. Dangelmaier particularly deals with the development of an agent controlled SCM- communication model which is part of the E-commerce analysis platform. Both are described in this paper. Furthermore, a unified modelling language in order to allow a prototypic implementation of the analysis tool and to make the work with other project participants and external participants easier is decided upon wit hin this project.
文摘In recent years, the macro-economy of Chinese enterprises has developed rapidly and the macro-environment has changed rapidly. It has directly promoted the great and important changes in the management structure of Chinas traditional state-owned assets and securities investment system. The current state-owned assets investment management policy is continuously undergoing new adjustments. The financial operation risk management model of each major state-owned assets securities investment fund management company has gradually and rapidly developed towards diversified financial operation management. The sources of funds have gradually begun to be expanded in an all-round way. The investment industry has gradually diversified and matured. Based on the analysis of this hot issue as the main theoretical breakthrough point, this paper analyzes some prominent problems commonly existing in the financial operation risk management of large state-owned assets investment fund management co., ltd. at present, and puts forward some practical suggestions on this issue. I hope the content of this article can provide some new help for our friends in the relevant investment management industry.
文摘Hirschmanniella oryzae is one of the most im-portant pathogenic nematodes of rice. Thereare few data on the Integrated Pest Manage-ment (IPM) of H. oryzae except for somestudies on the chemical control of this nema-tode. A study on the IPM of H. oryzae wascarried out in Guangzhou from 1991 to 1995.
文摘In order to improve the management of university status in China,it is necessary to actively transform the student status management model,it should be student service,and it’s turned into restraint and motivation,the mode of student service as a supplement is transformed.Under the model of service and constraint and incentive,we should strengthen the current management mode of student status in colleges and universities.And under the new model,the data quality of student status can be guaranteed,so that students’academic safety and education and teaching order can be improved accordingly,establish a good learning atmosphere,strengthening management.This paper analyzes and probes into the problems existing in the management of university status in China,this paper expounds the main contents of university student status management,and put forward the effective measures to improve the current management of university status.
文摘This paper presents analysis of a cost effective methodology using remotely sensed data analysed within a geographical systems (GIS) environment for mapping out </span><span style="font-family:Verdana;">potential habitats of anthropod vectors responsible for trypanosomiasis in northern Nigeria. These geographical locations are areas with high population of livestock in Nigeria. </span></span><span style="font-family:Verdana;">Animal Trypanosomiasis </span><span style="font-family:Verdana;">is considered as </span><span style="font-family:Verdana;">an arthropod-borne viral disease which is </span><span style="font-family:Verdana;">endemic in about 37 countries of the sub-Saharan Africa and in particular northern Nigeria. </span><span style="font-family:Verdana;">This anthropod-borne viral disease </span><span style="font-family:Verdana;">remains a threat to both humans and livestock in many communities, and the outbreak of such diseases </span><span style="font-family:Verdana;">i</span><span style="font-family:Verdana;">s shown to relate to fluctuations in the changing climate</span><span style="font-family:Verdana;"> mostly experienced whenever there are changes in global precipitation</span><span style="font-family:Verdana;"> which </span><span style="font-family:Verdana;">also relates to changes in sea surface temperatures otherwise known as </span><span style="font-family:Verdana;">“</span><span style="font-family:Verdana;">El Niňo Southern Oscillations</span><span style="font-family:Verdana;">”</span><span style="font-family:Verdana;"> (ENSO). Monthly </span><span style="font-family:Verdana;">Satellite imageries in the form of Normalised Difference Vegetation Index (NDVI) at 250</span><span style="font-family:""> </span><span style="font-family:Verdana;">meters spatial resolution obtained from NASA-MODIS/CMD w</span><span style="font-family:Verdana;">ere</span><span style="font-family:Verdana;"> subjected to principal component analysis utilizing the standardized principal components within a GIS environment and supplemented with Digital Elevation Model (DEM) data in the analysis. Results from the maps showed </span><span style="font-family:Verdana;">that </span><span style="font-family:Verdana;">pockets of probable habitats of these anthropod vectors responsible for trypanosomiasis mostly located around forest islands characterized by dry woodland and savanna, and in some cases around gallery forests and few lowland and riverine areas. This study provides baseline information for policy makers in Nigeria and other stakeholders as a cost effective measure for mapping potential habitats for anthropod vectors responsible for trypanosomiasis in Northern Nigeria. Further studies are encouraged so as to clearly understand the magnitude and actual locations of the habitat of this vector and find ways of targeting their locations for minimizing or even eradicating these vectors.
文摘With the current development and progress of the socialist marketing economy, the number of the private enterprises in our country increases constantly, and the development scale has been expanded constantly, which has become an important component for China＇s national economy, and making a huge contribution to promote the increase of China＇s national economy. In order to occupy a development location among the fierce market competition and expand the market share, the private enterprises in our country make many efforts constantly, such as strengthening and promotion of the internal management concept and the management mode, etc., which really obtains an obvious achievement and progress, however, due to the restriction of the various reasons, there are still many realistic problems existing in the financial cost management for the private enterprises, which restricts the sustainable, modern and scientific development step greatly, for the method on improving the financial cost management level in China＇s private enterprises and the guarantee of the pertinence and the efficiency for the financial cost management measures to be implemented in the private enterprises, it becomes the key problems which needs to be solved by the private enterprises currently.
文摘In the process of promoting chemical production, only by ensuring the process of chemical production can we truly reduce the waste of resources and promote the sustainable development of the chemical industry. However, there are some problems facing the development of chemical industry. Therefore, it is necessary to further optimize the construction process of chemical production in chemical engineering, improve the safety performance and environmental protection performance of chemical production, and comprehensively promote the sustainable development of chemical industry. This paper mainly focuses on the analysis and discussion of chemical production process in chemical engineering, firstly introduces the problems existing in the development process of chemical industry, then analyzes the characteristics of chemical engineering technology, further optimizes and improves the related process of chemical production, and finally puts forward the development trend of chemical production process.
文摘Under the influence of the socialist market economy system, the traditional human resources management model of state-owned enterprises has been unable to adapt to the current economic development and innovation trend. In order to speed up the reform process of human resources management of state-owned enterprises, it is necessary to take this management work as an important part of the modern management system of state-owned enterprises. Through the gradual innovation of human resources management model, it is necessary to avoid large-scale reform. Reduce the impact on the state-owned enterprise's grain operation and management system, and further improve the state-owned enterprise's market competitiveness by actively complying with the economic development and innovation trend and adopting effective innovation methods and reform measures.
基金financially supported by the National Natural Science Foundation of China (No.51504084)the Education Department of Fujian Province (No.JA15493)
文摘To research techniques for removing the water blocking effect caused by hydraulic applications in coal seams,the use of surfactants is proposed,based on the mechanics of the water blocking effect.Centrifugal experiments were used to validate the effects of using surfactants;the results show that after dealing with vacuum saturation with water,the volume of micropores decreases,which results in a larger average pore size,and the volume of transitional pores,mesopores,macropores and total pores increases.Based on the distribution of pore size,the operation mode of ‘‘water infusion after gas extraction,then continuing gas extraction" is recommended to improve the volume of coal mine gas drainage.When the reflectance of vitrinite in coal samples is less than 1,using the surfactants Fast T,1631,APG,BS can mitigate the damage caused by the water blocking effect.But when the reflectance of vitrinite is larger than 1.4,the damage caused by the water blocking effect can be increased.When the surfactant CMC is used in hydraulic applications,the capillary forces of coal samples are almost negative,which means the capillary force is in the same direction as the gas extraction.The direction of capillary forces benefits the gas flow.So,using CMC can play an active role in removing the water blocking effect.Centrifugal experiments confirm that using CMC can effectively remove the water blocking effect,which has a beneficial effect on improving the gas drainage volume.
基金supported by the National Natural Science Foundation of China (Nos. 41501079 and 91647103)the self-determined Project Funded by State Key Laboratory of Frozen Soil Engineering (No. SKLFSE-ZQ-43)the Foundation for Excellent Youth Scholars of NIEER, CAS
文摘This article attempts to investigate the measure effect of rubble roadbed engineering in permafrost regions of Qinghai-Tibet Plateau. As a case study, Chaidaer-Muli Railway is used to evaluate the measure effect of rubble roadbed engineering in permafrost regions. The AHP(Analytic Hierarchy Process) method is thus employed to establish the evaluation indicator system. The evaluation factor is selected by analyzing the mutual relation between the permafrost environment and roadbed engineering. Thus, a hierarchical structure model is established based on the selected evaluation indices. Each factor is weighted to determine the status in the evaluation system, and grading standards are built for providing a basis for the evaluation. Then, the fuzzy mathematical method is introduced to evaluate the measure effect of rubble roadbed engineering in permafrost regions along the Chadaer-Muli Railway. Results show that most of the permafrost roadbed is in a preferable condition(b) along the Chaidaer-Muli Railway due to rubble engineering measures. This proportion reaches to 86.1%. The proportion in good(a), general(c) and poor states(d) are 0.0%, 7.5% and 6.4%, respectively, in all the evaluation sections along the Chaidaer-Muli Railway. Ground-temperature monitoring results are generally consistent with AHP-FUZZY evaluation results. This means that the AHP-FUZZY method can be applied to evaluate the effect of rubble roadbed engineering measures in permafrost regions. The effect evaluation of engineering measures will provide timely and effective feedback information for further engineering design. The series of engineering measures will more effectively protect permafrost stability.
基金supported by the National Natural Science Foundation of China(Nos.11672312,11532014)
文摘An aerodynamic force and moment measurement was conducted in JF12 long-testduration detonation-driven shock tunnel of Institute of Mechanics,Chinese Academy of Sciences.The test duration of JF12 is 100–130 ms.The nominal Mach number is 7.0 and the exit diameter of the contoured nozzle is 2.5 m.The total enthalpy is 2.5 MJ/kg which duplicates the hypersonic flight conditions of Mach number 7.0 at 35 km altitude.The test model is the standard aerodynamic force model of 10° half-angle sharp cone.The length of the test model is 1500 mm and the weight is 57 kg.The aerodynamic forces were measured with a six-component strain balance.The angles of attack were set to be à5°,0°,5°,10° and 14°,respectively.The experimental results show that in the 100–130 ms test duration,the signals of strain balance have 3–4 complete vibration cycles.So,the aerodynamic forces and moments can be obtained directly by averaging the signals of balance without acceleration compensation.The force measurement error of repeatability of JF12 is less than 2%.The aerodynamic force coefficients of JF12 are in good agreement with those of conventional hypersonic wind tunnels.For this test model at Mach number 7.0 and total enthalpy of 2.5 MJ/kg,the real-gas effects on aerodynamic force characteristics are not very evident.
