A method of accuracy assignment based on value analysis method (VAM) in tank fire control system (TFCS) is proposed. From the analysis of primary error sources and their error transfer relationships, the mathemati...A method of accuracy assignment based on value analysis method (VAM) in tank fire control system (TFCS) is proposed. From the analysis of primary error sources and their error transfer relationships, the mathematical model is built on the basis of VAM to solve the accuracy assignment problem. Simulation results show the validation and feasibility of the proposed method. It can help designer of tank fire control system work out an optimal system more efficiently and more economically.展开更多
Through analyzing historical value of patriarchal society, village layout, and characteristic folk dwel ings in Ancient Sangyuan Village, Jishui County, Jiangxi Province, this paper proposed the protective planning ba...Through analyzing historical value of patriarchal society, village layout, and characteristic folk dwel ings in Ancient Sangyuan Village, Jishui County, Jiangxi Province, this paper proposed the protective planning based on the gist of protecting villagers' benefits, applied classified protection of buildings, enhanced water protection and landscape design, and tried to carry out its intangible cultures via folk custom activities, in order to further develop the value of its historical and cultural resources.展开更多
National logistics system in Indonesia can be categorized as inefficient logistics system due to current number of non-value added (NVA) activities. The unreliable National logistics system and the complexity of dis...National logistics system in Indonesia can be categorized as inefficient logistics system due to current number of non-value added (NVA) activities. The unreliable National logistics system and the complexity of distribution system are the big obstacles. This study aims to analyze the value and to propose recommendation for further improvement of National distribution system for imported product. This study employed convenience sampling through in-depth interview to analyze the activity in freight forwarder (FF), distributor and retailer. To demonstrate and analyze the activity process in each party, Process Activity Mapping (PAM) was used as a tool. The study results showed that the delivery speed in Jakarta (8.4 min/km) is slower than that of Surabaya (6.6 min/km). The government support through creating adequate infrastructure, good bureaucracy system and good collaboration directly affects the activities of FF, distributor and retailer. Improving FF performance in a timely and reliable manner is required to reduce errors that may occur. Moreover, encouraging the practice of cold chain management is also necessary in distributing the product throughout Indonesia. The pull strategy can be chosen by retailer to eliminate storage activity. Meanwhile, the use of information technology (IT) system is essential to encourage better inventory management, database management and sharing information in distributor and retailer stage.展开更多
By dint of the summer precipitation data from 21 stations in the Dongting Lake region during 1960-2008 and the sea surface temperature(SST) data from NOAA,the spatial and temporal distributions of summer precipitation...By dint of the summer precipitation data from 21 stations in the Dongting Lake region during 1960-2008 and the sea surface temperature(SST) data from NOAA,the spatial and temporal distributions of summer precipitation and their correlations with SST are analyzed.The coupling relationship between the anomalous distribution in summer precipitation and the variation of SST has between studied with the Singular Value Decomposition(SVD) analysis.The increase or decrease of summer precipitation in the Dongting Lake region is closely associated with the SST anomalies in three key regions.The variation of SST in the three key regions has been proved to be a significant previous signal to anomaly of summer rainfall in Dongting region.展开更多
Objective:To explore the value of tongue color combined with sublingual microcirculation in predicting the severity of mild to moderate acute cerebral infarction(ACI).Methods:From January to December 2022,90 patients ...Objective:To explore the value of tongue color combined with sublingual microcirculation in predicting the severity of mild to moderate acute cerebral infarction(ACI).Methods:From January to December 2022,90 patients with ACI were admitted to the Department of Neurology of Jiangsu Provincial Hospital of Integrated Traditional Chinese and Western Medicine.According to the NHISS score on the 5th day of admission,the patients were divided into mild group(35 cases)and moderate group(55 cases).The changes of tongue color and arterial lactate on the 5th day of admission were observed and monitored.Side-stream dark field imaging(SDF)was used to determine the total vascular density(TVD),perfused vascular density(PVD),perfused vascular ratio(PPV)and microvascular flow index(MFI).The multivariate logistic regression analysis was used to screen the risk factors for the severity of ACI,and the receiver operating characteristic curve(ROC)to evaluate their values in predicting ACI severity.Results:There was no significant difference in lactate between the two groups(P>0.05),and the frequency of red tongue in the mild group was higher,and the frequency of red tongue in the moderate group was significantly higher in the dark tongue group(P<0.05).The multivariate logistic regression analysis showed that PVD and PPV were independent risk factors for the severity of mild to moderate ACI(P<0.05).The ROC curve analysis showed that an area under the curve of 0.832 was achieved by the combination of PVD and PPV,which was larger than that of a single factor.Conclusion:Tongue color combined with sublingual microcirculation can be combined to predict the severity of mild to moderate ACI.展开更多
This paper clarifies the essence of the significance test of singular value decomposition analysis (SVD), and investigates four rules for testing the significance of coupled modes of SVD, including parallel analysis...This paper clarifies the essence of the significance test of singular value decomposition analysis (SVD), and investigates four rules for testing the significance of coupled modes of SVD, including parallel analysis, nonparametric bootstrap, random-phase test, and a new rule named modified parallel analysis. A numerical experiment is conducted to quantitatively compare the performance of the four rules in judging whether a coupled mode of SVD is significant as parameters such as the sample size, the number of grid points, and the signal-to-noise ratio vary. The results show that the four rules perform better with lower ratio of the number of grid points to sample size. Modified parallel analysis and nonparametric bootstrap perform best to abandon the spurious coupled modes, but the latter is better than the former to retain the significant coupled modes when the sample size is not much larger than the number of grid points. Parallel analysis and random-phase test are robust to abandon the spurious coupled modes only when either (1) the observations at the grid points are spatially uncorrelated, or (2) the coupled signal is very strong for parallel analysis and is not weak for random-phase test. The reasons affecting the accuracy of the test rules are discussed.展开更多
A research on the application of a TG-DTA(thermal gravimetry aifferential thermal analysis)to the quick determination of moisture,organic volatile fixed carbon,ash and caloric value for coal is described.
All the way in the “area”, “comprehensive economic partnership agreement” (RCEP), Association of Southeast Asian Nations (ASEAN) free trade area, the main economic corridor construction under the background of suc...All the way in the “area”, “comprehensive economic partnership agreement” (RCEP), Association of Southeast Asian Nations (ASEAN) free trade area, the main economic corridor construction under the background of success, the mainland and Taiwan of China and southeast Asia has established the important relations of cooperation, industries are beginning to consider labor costs, raw materials, using the regional to invest policy and market comparative advantage. This paper starts from the investigation of Topline’s core competitiveness in China and Myanmar, and focuses on the analysis of lingerie industry in China and Myanmar, and the analysis of women’s underwear industry from the perspective of global value chain (GVC). Through the data analysis of the questionnaire survey, this paper summarizes the problems existing in the current situation of the industry, uses the intermediary analysis to analyze the correlation between the two variables, reveals the role of the core competitiveness of enterprises, and uses the GVC theory to analyze the problems existing in the industry of enterprises and their causes. According to relevant theories, the optimization path of enterprise value chain is put forward.展开更多
The eighteen Party Congress report pointed out that the essence of socialist core value system is the socialist core values, the value orientation of “prosperity, democracy, civilization, harmony, freedom, equality, ...The eighteen Party Congress report pointed out that the essence of socialist core value system is the socialist core values, the value orientation of “prosperity, democracy, civilization, harmony, freedom, equality, justice, rule of law, patriotism, dedication, integrity, kindness”. The comprehensive construction of a well-off society, the development of China socialism, in-depth implementation of Scientific Outlook on Development, people-oriented, to achieve the great rejuvenation of the Chinese nation Chinese dream is the common aspiration of the people of all ethnic groups in the future and direction of the party, is the focus of future work in a period of time. The realization of “China dream”, to lead the socialist core value system and promote the socialist core values into the socialist reform and construction aspects, realize the comprehensive development of politics, economy, culture and society, promote the construction of ecological civilization. Based on this background, in this paper, the author will be the main socialist core values to achieve the “Chinese dream” theme of the path analysis.展开更多
This study aims to assess the small ruminant value chain in Al-Ruwaished District,Jordan,to identify the potential intervention areas that could improve the production efficiency and guarantee the sustainability of th...This study aims to assess the small ruminant value chain in Al-Ruwaished District,Jordan,to identify the potential intervention areas that could improve the production efficiency and guarantee the sustainability of the small ruminant sector in this area.Sheep breeding is the source of livelihood for most of the people in Al-Ruwaished District,which is characterized by the large number of sheep and goats.We surveyed 5.0% of the small ruminant holders in the study area and conducted individual interviews and surveys with the potential actors in the value chain to undertake a small ruminant value chain analysis.From the survey,we found that the small ruminant value chain consists of five core functions,namely,input supply,production management,marketing,processing,and consumption.Despite the stable impression given by the large number of holdings in the small ruminant sector,the surveyed results show a clear fragility in the value chain of small ruminants in this area.The small ruminant production system is negatively impacted by climate change,especially continuous drought.In addition,the high prices of feed that the farmer cannot afford with clear and real absence of the governmental and non-governmental support activities also impact the development of the value chain.The results of strengths,weaknesses,opportunities,and threats(SWOT)analysis reveal that the major constraints faced by this value chain could be divided into external and internal threats.Specifically,the most prominent external threats are the nature of the desert land and continuous drought,while the major internal threats are the absence of appropriate infrastructure,shortage of inputs,and weakness in the production management and marketing.We proposed solutions to these challenges to ensure the sustainability and effectiveness of the sector,such as the formulation of emergency response plans to severe weather,qualifying farmers’skills,and establishment of agricultural cooperative societies.展开更多
For a long time Kenya has desired to access lucrative export markets for her livestock products. Although this desire matches the growing global demand for livestock products and increasing interest in livestock produ...For a long time Kenya has desired to access lucrative export markets for her livestock products. Although this desire matches the growing global demand for livestock products and increasing interest in livestock products from Kenya by livestock deficient countries, Kenya has not been able to meet the expressed demand. The reasons for this failure have not been sufficiently documented. This study used the value chain approach to assess and document the factors that limit Kenya's export trade in livestock. Questionnaire interviews were undertaken with livestock producers, traders, processors and importers. Producers cited livestock diseases, poor roads, drought, livestock theft and insecurity as the main constraints to livestock supply. Livestock traders mentioned high cost and delays in obtaining movement permits, rent-seeking and disturbance by government officials along the stock routes as some of the constraints. Processors on the other hand mentioned Kenya's failure to meet the international sanitary requirements. The only importer interviewed indicated that trade restrictions, Kenya's inability to control livestock diseases and distance were the main constraints to increased livestock trade with Kenya. Stakeholders in Kenya's livestock export value chain should address these and other constraints in order to revitalize this vital sector.展开更多
This paper discusses three kinds of BVPs of elliptic system (E1) on the complementary domain of disk. The results, based on Fourier analysis method. not only enrich the results of reference [1]. but also are of both t...This paper discusses three kinds of BVPs of elliptic system (E1) on the complementary domain of disk. The results, based on Fourier analysis method. not only enrich the results of reference [1]. but also are of both theoretical and practical interest.展开更多
This study aimed to determine the waste that occurs in activities from receiving to delivering of finished products that can result in delays in the delivery of audio to Japan.The waste identified is limited to activi...This study aimed to determine the waste that occurs in activities from receiving to delivering of finished products that can result in delays in the delivery of audio to Japan.The waste identified is limited to activities in the finished goods warehouse.The problem that occurs is the delay in product delivery,because the product is not ready to be delivered so that it causes delays.The lean approach is used to reduce waste in the overall work process activities in the finished goods warehouse.Waste identification was performed through the 7 waste approach.Process Activity Mapping is one of the tools of VALSAT,and is looking for critical waste to find the root cause of waste.Delay can be minimized by making improvements to the layout of the warehouse and routine inspection of goods transporters.Companies should use lean to reduce the waste that occurs so there is no delay in the delivery of audio products.展开更多
As for the dispute about the best-choosing method of mutually-exclusive scheme and index selection, this text proves that there is an error to make a point that using net present value rate or net annual value rate, t...As for the dispute about the best-choosing method of mutually-exclusive scheme and index selection, this text proves that there is an error to make a point that using net present value rate or net annual value rate, the most scientific and effective method is chain-system differential analysis and the most short-cutting method is the method of net annual value, to select the NA V maximum scheme.展开更多
In order to improve the implementability of municipal road design,the rational application of BIM Technology in the process of road design is a common method in current road engineering design units.The advantages of ...In order to improve the implementability of municipal road design,the rational application of BIM Technology in the process of road design is a common method in current road engineering design units.The advantages of BIM Technology,such as visualization,simulation,coordination and optimization,are increasingly recognized by the industry.In this paper,the author draws on many years of practical experience to introduce the advantages of BIM Technology,as well as how to apply BIM Technology to optimize municipal road design work and to discuss some views,in the hopes of assisting in the further improvement of the level of municipal road constructions in China.展开更多
The extreme temperature differences in fiat steel box girder of a cable-stayed bridge were studied.Firstly,by using the long-term measurement data collected by the structural health monitoring system installed on the ...The extreme temperature differences in fiat steel box girder of a cable-stayed bridge were studied.Firstly,by using the long-term measurement data collected by the structural health monitoring system installed on the Runyang Cable-stayed Bridge,the daily variations as well as seasonal ones of measured temperature differences in the box girder cross-section area were summarized.The probability distribution models of temperature differences were further established and the extreme temperature differences were estimated with a return period of 100 years.Finally,the temperature difference models in cross-section area were proposed for bridge thermal design.The results show that horizontal temperature differences in top plate and vertical temperature differences between top plate and bottom plate are considerable.All the positive and negative temperature differences can be described by the weighted sum of two Weibull distributions.The maximum positive and negative horizontal temperature differences in top plate are 10.30 ℃ and -13.80 ℃,respectively.And the maximum positive and negative vertical temperature differences between top plate and bottom plate are 17.30 ℃ and-3.70 ℃,respectively.For bridge thermal design,there are two vertical temperature difference models between top plate and bottom plate,and six horizontal temperature difference models in top plate.展开更多
We performed long-term wind-wave hindcast in the Yellow Sea and the Bohai Sea from the year 1988 to 2002, and then analyzed the regional wave climate. Comparisons between model results and satellite data are generally...We performed long-term wind-wave hindcast in the Yellow Sea and the Bohai Sea from the year 1988 to 2002, and then analyzed the regional wave climate. Comparisons between model results and satellite data are generally consistent on monthly mean significant wave height. Then we discuss the temporal and spatial characteristics of the climatological monthly mean significant wave heights and mean wave periods. The climatologically spatial patterns are observed as increasing from northwest to southeast and from offshore to deep-water area for both significant wave height and mean wave period, and the patterns are highly related to the wind forcing and local topography. Seasonal variations of wave parameters are also significant. Furthermore, we compute the extreme values of wind and significant wave height using statistical methods. Results reveal the spatial patterns of N-year return significant wave height in the Yellow Sea and the Bohai Sea, and we discuss the relationship between extreme values of significant wave height and wind forcing.展开更多
The planning of prior conservation areas is an important part of nature re- serve system, :it is of great significance for biodiversity conservation. The methods of priority planning include hot-spots analysis, gap a...The planning of prior conservation areas is an important part of nature re- serve system, :it is of great significance for biodiversity conservation. The methods of priority planning include hot-spots analysis, gap analysis, systematic conservation planning analysis and multi-criteria decision analysis. The key issues of priority area planning include the determination of the protect objects, the analyses of the protec- tion value and protection cost, the win-win development of protection and economy, and the changes of the management strategies of the protected areas. In this study, the features and research progress of different conservation methods were analyzed, and based on the discussion on the key issues of the planning of the protected areas, the application prospect of different methods was analyzed.展开更多
The substitute of materials based on the materials of the value analysis is a valid path which can lower the cost of products. If the substitute of materials can be applied in Chinese enterprises producing cement, the...The substitute of materials based on the materials of the value analysis is a valid path which can lower the cost of products. If the substitute of materials can be applied in Chinese enterprises producing cement, the technique can be advanced, and the remarkable economic performance can also be obtained.展开更多
Laminar optical tomography(LOT)is a mesoscopic tomographic imaging technique ranging between confocal microscopy and diffuse optical tomography(DOT).Fluorescence LOT(FLOT)provides depth-resolved molecular information ...Laminar optical tomography(LOT)is a mesoscopic tomographic imaging technique ranging between confocal microscopy and diffuse optical tomography(DOT).Fluorescence LOT(FLOT)provides depth-resolved molecular information with 100-200μm resolution over 2-3mm depth.In this study,we use Monte Carlo simulation and singular-value analysis(SVA)to optimize the source-detector configurations for potential enhancement of FLOT imaging performance.The effects of different design parameters,including source incidence and detector collection angles,detector number,and sampling density,are presented.The results indicate that angled incidence/detection configuration might improve the imaging resolution and depth sensitivity,especially for low-scattering medium.Increasing the number of detectors and the number of scanning steps will also result in enhanced imaging performance.We also demonstrate that the optimal imaging performance depends upon the background scattering coe±cient.Our result might provide an optimization strategy for FLOT or LOT experimental setup.展开更多
文摘A method of accuracy assignment based on value analysis method (VAM) in tank fire control system (TFCS) is proposed. From the analysis of primary error sources and their error transfer relationships, the mathematical model is built on the basis of VAM to solve the accuracy assignment problem. Simulation results show the validation and feasibility of the proposed method. It can help designer of tank fire control system work out an optimal system more efficiently and more economically.
基金Sponsored by"Twelfth Five-year Plan"(2014)of Jiangxi Provincial Social Science Program(14SH05)Humanities and Social Science Program of Jiangxi Provincial Universities and Colleges(JC1434)Jiangxi Provincial Arts and Science Program(YG2014113)
文摘Through analyzing historical value of patriarchal society, village layout, and characteristic folk dwel ings in Ancient Sangyuan Village, Jishui County, Jiangxi Province, this paper proposed the protective planning based on the gist of protecting villagers' benefits, applied classified protection of buildings, enhanced water protection and landscape design, and tried to carry out its intangible cultures via folk custom activities, in order to further develop the value of its historical and cultural resources.
文摘National logistics system in Indonesia can be categorized as inefficient logistics system due to current number of non-value added (NVA) activities. The unreliable National logistics system and the complexity of distribution system are the big obstacles. This study aims to analyze the value and to propose recommendation for further improvement of National distribution system for imported product. This study employed convenience sampling through in-depth interview to analyze the activity in freight forwarder (FF), distributor and retailer. To demonstrate and analyze the activity process in each party, Process Activity Mapping (PAM) was used as a tool. The study results showed that the delivery speed in Jakarta (8.4 min/km) is slower than that of Surabaya (6.6 min/km). The government support through creating adequate infrastructure, good bureaucracy system and good collaboration directly affects the activities of FF, distributor and retailer. Improving FF performance in a timely and reliable manner is required to reduce errors that may occur. Moreover, encouraging the practice of cold chain management is also necessary in distributing the product throughout Indonesia. The pull strategy can be chosen by retailer to eliminate storage activity. Meanwhile, the use of information technology (IT) system is essential to encourage better inventory management, database management and sharing information in distributor and retailer stage.
基金Supported by The Special Foundation of Chinese Meteorological Bureau Climate Changes Program(200920)The Special Foundation of Hunan Major Scientific and Technological Research Program(2008FJ1006)~~
文摘By dint of the summer precipitation data from 21 stations in the Dongting Lake region during 1960-2008 and the sea surface temperature(SST) data from NOAA,the spatial and temporal distributions of summer precipitation and their correlations with SST are analyzed.The coupling relationship between the anomalous distribution in summer precipitation and the variation of SST has between studied with the Singular Value Decomposition(SVD) analysis.The increase or decrease of summer precipitation in the Dongting Lake region is closely associated with the SST anomalies in three key regions.The variation of SST in the three key regions has been proved to be a significant previous signal to anomaly of summer rainfall in Dongting region.
文摘Objective:To explore the value of tongue color combined with sublingual microcirculation in predicting the severity of mild to moderate acute cerebral infarction(ACI).Methods:From January to December 2022,90 patients with ACI were admitted to the Department of Neurology of Jiangsu Provincial Hospital of Integrated Traditional Chinese and Western Medicine.According to the NHISS score on the 5th day of admission,the patients were divided into mild group(35 cases)and moderate group(55 cases).The changes of tongue color and arterial lactate on the 5th day of admission were observed and monitored.Side-stream dark field imaging(SDF)was used to determine the total vascular density(TVD),perfused vascular density(PVD),perfused vascular ratio(PPV)and microvascular flow index(MFI).The multivariate logistic regression analysis was used to screen the risk factors for the severity of ACI,and the receiver operating characteristic curve(ROC)to evaluate their values in predicting ACI severity.Results:There was no significant difference in lactate between the two groups(P>0.05),and the frequency of red tongue in the mild group was higher,and the frequency of red tongue in the moderate group was significantly higher in the dark tongue group(P<0.05).The multivariate logistic regression analysis showed that PVD and PPV were independent risk factors for the severity of mild to moderate ACI(P<0.05).The ROC curve analysis showed that an area under the curve of 0.832 was achieved by the combination of PVD and PPV,which was larger than that of a single factor.Conclusion:Tongue color combined with sublingual microcirculation can be combined to predict the severity of mild to moderate ACI.
基金This work was supported by the National Natural Science Foundation of China under Grant No. 40233027.
文摘This paper clarifies the essence of the significance test of singular value decomposition analysis (SVD), and investigates four rules for testing the significance of coupled modes of SVD, including parallel analysis, nonparametric bootstrap, random-phase test, and a new rule named modified parallel analysis. A numerical experiment is conducted to quantitatively compare the performance of the four rules in judging whether a coupled mode of SVD is significant as parameters such as the sample size, the number of grid points, and the signal-to-noise ratio vary. The results show that the four rules perform better with lower ratio of the number of grid points to sample size. Modified parallel analysis and nonparametric bootstrap perform best to abandon the spurious coupled modes, but the latter is better than the former to retain the significant coupled modes when the sample size is not much larger than the number of grid points. Parallel analysis and random-phase test are robust to abandon the spurious coupled modes only when either (1) the observations at the grid points are spatially uncorrelated, or (2) the coupled signal is very strong for parallel analysis and is not weak for random-phase test. The reasons affecting the accuracy of the test rules are discussed.
文摘A research on the application of a TG-DTA(thermal gravimetry aifferential thermal analysis)to the quick determination of moisture,organic volatile fixed carbon,ash and caloric value for coal is described.
文摘All the way in the “area”, “comprehensive economic partnership agreement” (RCEP), Association of Southeast Asian Nations (ASEAN) free trade area, the main economic corridor construction under the background of success, the mainland and Taiwan of China and southeast Asia has established the important relations of cooperation, industries are beginning to consider labor costs, raw materials, using the regional to invest policy and market comparative advantage. This paper starts from the investigation of Topline’s core competitiveness in China and Myanmar, and focuses on the analysis of lingerie industry in China and Myanmar, and the analysis of women’s underwear industry from the perspective of global value chain (GVC). Through the data analysis of the questionnaire survey, this paper summarizes the problems existing in the current situation of the industry, uses the intermediary analysis to analyze the correlation between the two variables, reveals the role of the core competitiveness of enterprises, and uses the GVC theory to analyze the problems existing in the industry of enterprises and their causes. According to relevant theories, the optimization path of enterprise value chain is put forward.
文摘The eighteen Party Congress report pointed out that the essence of socialist core value system is the socialist core values, the value orientation of “prosperity, democracy, civilization, harmony, freedom, equality, justice, rule of law, patriotism, dedication, integrity, kindness”. The comprehensive construction of a well-off society, the development of China socialism, in-depth implementation of Scientific Outlook on Development, people-oriented, to achieve the great rejuvenation of the Chinese nation Chinese dream is the common aspiration of the people of all ethnic groups in the future and direction of the party, is the focus of future work in a period of time. The realization of “China dream”, to lead the socialist core value system and promote the socialist core values into the socialist reform and construction aspects, realize the comprehensive development of politics, economy, culture and society, promote the construction of ecological civilization. Based on this background, in this paper, the author will be the main socialist core values to achieve the “Chinese dream” theme of the path analysis.
文摘This study aims to assess the small ruminant value chain in Al-Ruwaished District,Jordan,to identify the potential intervention areas that could improve the production efficiency and guarantee the sustainability of the small ruminant sector in this area.Sheep breeding is the source of livelihood for most of the people in Al-Ruwaished District,which is characterized by the large number of sheep and goats.We surveyed 5.0% of the small ruminant holders in the study area and conducted individual interviews and surveys with the potential actors in the value chain to undertake a small ruminant value chain analysis.From the survey,we found that the small ruminant value chain consists of five core functions,namely,input supply,production management,marketing,processing,and consumption.Despite the stable impression given by the large number of holdings in the small ruminant sector,the surveyed results show a clear fragility in the value chain of small ruminants in this area.The small ruminant production system is negatively impacted by climate change,especially continuous drought.In addition,the high prices of feed that the farmer cannot afford with clear and real absence of the governmental and non-governmental support activities also impact the development of the value chain.The results of strengths,weaknesses,opportunities,and threats(SWOT)analysis reveal that the major constraints faced by this value chain could be divided into external and internal threats.Specifically,the most prominent external threats are the nature of the desert land and continuous drought,while the major internal threats are the absence of appropriate infrastructure,shortage of inputs,and weakness in the production management and marketing.We proposed solutions to these challenges to ensure the sustainability and effectiveness of the sector,such as the formulation of emergency response plans to severe weather,qualifying farmers’skills,and establishment of agricultural cooperative societies.
文摘For a long time Kenya has desired to access lucrative export markets for her livestock products. Although this desire matches the growing global demand for livestock products and increasing interest in livestock products from Kenya by livestock deficient countries, Kenya has not been able to meet the expressed demand. The reasons for this failure have not been sufficiently documented. This study used the value chain approach to assess and document the factors that limit Kenya's export trade in livestock. Questionnaire interviews were undertaken with livestock producers, traders, processors and importers. Producers cited livestock diseases, poor roads, drought, livestock theft and insecurity as the main constraints to livestock supply. Livestock traders mentioned high cost and delays in obtaining movement permits, rent-seeking and disturbance by government officials along the stock routes as some of the constraints. Processors on the other hand mentioned Kenya's failure to meet the international sanitary requirements. The only importer interviewed indicated that trade restrictions, Kenya's inability to control livestock diseases and distance were the main constraints to increased livestock trade with Kenya. Stakeholders in Kenya's livestock export value chain should address these and other constraints in order to revitalize this vital sector.
文摘This paper discusses three kinds of BVPs of elliptic system (E1) on the complementary domain of disk. The results, based on Fourier analysis method. not only enrich the results of reference [1]. but also are of both theoretical and practical interest.
文摘This study aimed to determine the waste that occurs in activities from receiving to delivering of finished products that can result in delays in the delivery of audio to Japan.The waste identified is limited to activities in the finished goods warehouse.The problem that occurs is the delay in product delivery,because the product is not ready to be delivered so that it causes delays.The lean approach is used to reduce waste in the overall work process activities in the finished goods warehouse.Waste identification was performed through the 7 waste approach.Process Activity Mapping is one of the tools of VALSAT,and is looking for critical waste to find the root cause of waste.Delay can be minimized by making improvements to the layout of the warehouse and routine inspection of goods transporters.Companies should use lean to reduce the waste that occurs so there is no delay in the delivery of audio products.
文摘As for the dispute about the best-choosing method of mutually-exclusive scheme and index selection, this text proves that there is an error to make a point that using net present value rate or net annual value rate, the most scientific and effective method is chain-system differential analysis and the most short-cutting method is the method of net annual value, to select the NA V maximum scheme.
文摘In order to improve the implementability of municipal road design,the rational application of BIM Technology in the process of road design is a common method in current road engineering design units.The advantages of BIM Technology,such as visualization,simulation,coordination and optimization,are increasingly recognized by the industry.In this paper,the author draws on many years of practical experience to introduce the advantages of BIM Technology,as well as how to apply BIM Technology to optimize municipal road design work and to discuss some views,in the hopes of assisting in the further improvement of the level of municipal road constructions in China.
基金Project(51178100)supported by the National Natural Science Foundation of ChinaProject(1105007001)supported by the Foundation of the Priority Academic Development Program of Higher Education Institute of Jiangsu Province,ChinaProject(3205001205)supported by the Teaching and Research Foundation for Excellent Young Teachers of Southeast University,China
文摘The extreme temperature differences in fiat steel box girder of a cable-stayed bridge were studied.Firstly,by using the long-term measurement data collected by the structural health monitoring system installed on the Runyang Cable-stayed Bridge,the daily variations as well as seasonal ones of measured temperature differences in the box girder cross-section area were summarized.The probability distribution models of temperature differences were further established and the extreme temperature differences were estimated with a return period of 100 years.Finally,the temperature difference models in cross-section area were proposed for bridge thermal design.The results show that horizontal temperature differences in top plate and vertical temperature differences between top plate and bottom plate are considerable.All the positive and negative temperature differences can be described by the weighted sum of two Weibull distributions.The maximum positive and negative horizontal temperature differences in top plate are 10.30 ℃ and -13.80 ℃,respectively.And the maximum positive and negative vertical temperature differences between top plate and bottom plate are 17.30 ℃ and-3.70 ℃,respectively.For bridge thermal design,there are two vertical temperature difference models between top plate and bottom plate,and six horizontal temperature difference models in top plate.
基金The National Natural Science Foundation of China under contract Nos 41476021 and 41321004the Strategic Priority Research Program of the Chinese Academy of Sciences under contract No.XDA11010104the project of Indo-Pacific Ocean Environment Variation and Air-sea Interaction under contract No.GASI-IPOVAI-04
文摘We performed long-term wind-wave hindcast in the Yellow Sea and the Bohai Sea from the year 1988 to 2002, and then analyzed the regional wave climate. Comparisons between model results and satellite data are generally consistent on monthly mean significant wave height. Then we discuss the temporal and spatial characteristics of the climatological monthly mean significant wave heights and mean wave periods. The climatologically spatial patterns are observed as increasing from northwest to southeast and from offshore to deep-water area for both significant wave height and mean wave period, and the patterns are highly related to the wind forcing and local topography. Seasonal variations of wave parameters are also significant. Furthermore, we compute the extreme values of wind and significant wave height using statistical methods. Results reveal the spatial patterns of N-year return significant wave height in the Yellow Sea and the Bohai Sea, and we discuss the relationship between extreme values of significant wave height and wind forcing.
基金Supported by Scientific and Technological Projects of Anhui ProvinceNational Key Laboratory of Tea Biology and Resource Utilization of Anhui Agricultural University~~
文摘The planning of prior conservation areas is an important part of nature re- serve system, :it is of great significance for biodiversity conservation. The methods of priority planning include hot-spots analysis, gap analysis, systematic conservation planning analysis and multi-criteria decision analysis. The key issues of priority area planning include the determination of the protect objects, the analyses of the protec- tion value and protection cost, the win-win development of protection and economy, and the changes of the management strategies of the protected areas. In this study, the features and research progress of different conservation methods were analyzed, and based on the discussion on the key issues of the planning of the protected areas, the application prospect of different methods was analyzed.
文摘The substitute of materials based on the materials of the value analysis is a valid path which can lower the cost of products. If the substitute of materials can be applied in Chinese enterprises producing cement, the technique can be advanced, and the remarkable economic performance can also be obtained.
文摘Laminar optical tomography(LOT)is a mesoscopic tomographic imaging technique ranging between confocal microscopy and diffuse optical tomography(DOT).Fluorescence LOT(FLOT)provides depth-resolved molecular information with 100-200μm resolution over 2-3mm depth.In this study,we use Monte Carlo simulation and singular-value analysis(SVA)to optimize the source-detector configurations for potential enhancement of FLOT imaging performance.The effects of different design parameters,including source incidence and detector collection angles,detector number,and sampling density,are presented.The results indicate that angled incidence/detection configuration might improve the imaging resolution and depth sensitivity,especially for low-scattering medium.Increasing the number of detectors and the number of scanning steps will also result in enhanced imaging performance.We also demonstrate that the optimal imaging performance depends upon the background scattering coe±cient.Our result might provide an optimization strategy for FLOT or LOT experimental setup.