期刊文献+
共找到5,528篇文章
< 1 2 250 >
每页显示 20 50 100
Visual Analysis of Research Hotspots and Trends of Benefit Finding in China Based on Citespace
1
作者 Songhong XIE Fukui HE +4 位作者 Yingjia XU Cun FENG Xingya ZHAO Jingxian HU Bing LIU 《Medicinal Plant》 CAS 2023年第3期87-90,共4页
[Objectives]Based on the related literature of benefit finding in China National Knowledge Infrastructure(CNKI),this paper analyzes the research status,hot spots and trends in this field.[Methods]To search for the rel... [Objectives]Based on the related literature of benefit finding in China National Knowledge Infrastructure(CNKI),this paper analyzes the research status,hot spots and trends in this field.[Methods]To search for the related literature on benefit finding in China National Knowledge Infrastructure(CNKI),and use Citespace software to visually analyze the number of papers,authors,institutions and keywords.[Results]A total of 204 related papers were obtained,and the annual number of published papers showed a gradual increasing trend.The authors of published papers were represented by Zhang Fenglan,Liu Zhunzhun and Zhang Ting,and the Nursing College of Anhui Medical University published the most papers.The research focus was on social support,coping method and other influencing factors,and qualitative research was the main research type.The key population was breast cancer,stroke patients and their caregivers,and the development trend focused on reliability and validity test and correlation analysis.[Conclusions]The field of benefit finding in China is in the initial exploration stage,and there is little cooperation and exchange between authors and institutions.In the future,academic exchanges and multidisciplinary assistance should be strengthened to promote the rapid development of this field. 展开更多
关键词 benefit finding Research hotspot CITESPACE Visual analysis
下载PDF
The Benefit Risk Assessment of Consumption of Marine Species Based on Benefit-Risk Analysis for Foods(BRAFO)-tiered Approach 被引量:5
2
作者 GAO Yi Xiong ZHANG Hong Xia +6 位作者 LI Jing Guang ZHANG Lei YU Xin Wei HE Jia Lu SHANG Xiao Hong ZHAO Yun Feng WU Yong Ning 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2015年第4期243-252,共10页
Objective To assess the net health effect caused by the consumption of specific marine species based on Benefit-Risk Analysis for Foods (BRAFO)-tiered approach. Methods Twenty species were collected from the Zhousha... Objective To assess the net health effect caused by the consumption of specific marine species based on Benefit-Risk Analysis for Foods (BRAFO)-tiered approach. Methods Twenty species were collected from the Zhoushan Archipelago, China. Concentrations of n-3 long-chain polyunsaturated fatty acids, methyl mercury (MeHg), and dioxin-like compounds (DLCs) in the samples were analyzed for benefit risk assessment based on BRAFO-tiered approach. Results Based on the BRAFO-tiered approach, reference scenario (no intake) and alternative scenario (intake of specific species of 200 g/week) were determined. The exposure to MeHg/DLCs via alternative scenario of all studied species did not exceed provisional tolerable weekly/monthly intake. However, the adult population with high DLCs exposure in China would significantly exceed the upper limit of DLCs via an additional alternative scenario of some species such as Auxis thazard. The results of deterministic computation showed that alternative scenario of all studied species generated clear net beneficial effects on death prevention and child IQ gain. Conclusion The alternative scenario of all studied species could be recommended to population with average DLCs exposure, and the reference scenario of species with relatively high DLCs concentration could be recommended to population exposed to high DLCs. 展开更多
关键词 N-3 long-chain polyunsaturated fatty acid Methyl mercury Dioxin-like compound benefit-Risk analysis for Foods (BRAFO) benefit risk assessment
下载PDF
Economic Viability of Smallholder Agroforestry and Beekeeping Projects in Uluguru Mountains, Tanzania: A Cost Benefit Analysis 被引量:1
3
作者 Willickister R. Kadigi Yonika M. Ngaga Reuben M. J. Kadigi 《Open Journal of Forestry》 2021年第2期83-107,共25页
Agroforestry and beekeeping are widely promoted as prospective Nature-</span></span><span><span><span style="font-family:""> </span></span></span><span... Agroforestry and beekeeping are widely promoted as prospective Nature-</span></span><span><span><span style="font-family:""> </span></span></span><span><span><span style="font-family:""><span style="font-family:Verdana;">Based Income Generating Activities (NIGAs) to improve livelihoods while at </span><span style="font-family:Verdana;">the same time enhancing biodiversity conservation in degrading</span><span style="font-family:Verdana;"> agro-ecologies. These activities can diversify and increase famers’ incomes and support in</span><span style="font-family:Verdana;">stinctive biota and fauna resilience. However, evidence to showcase and compare their long-term benefits is scant. We use the case of Uluguru</span><span style="font-family:Verdana;"> Mountains in Tanzania to evaluate and compare viability of agroforestry and beekeeping projects using the Cost</span></span></span></span><span><span><span style="font-family:""> </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">Benefit Analysis (CBA) approach. The results of analysis yielded positive NPVs for both agroforestry and beekeeping projects at discount rates not higher than 8.2% and 8.5% respectively. Overall, the comparison of economic viability between agroforestry and beekeeping projects revealed that the former was relatively more profitable than the later in terms of both the NPV and Benefit</span></span></span><span><span><span style="font-family:""> </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">Cost Ratio (BCR) criteria. However, the Internal Rate of Return (IRR) for beekeeping was slightly higher than that of agroforestry. Yet, we underscore the fact that these two projects can jointly be implemented to enhance livelihoods of farmers and support biodiversity conservation in the study </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">area </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">and other parts with similar agro-ecologies in developing countries. However, farmers in these agro-ecologies need to be supported by governments and non-government development partners in terms of training and inspiration to shift from orthodox farming to sustainable NIGAs. 展开更多
关键词 Uluguru Mountains Uluguru Forestry Reserve Cost benefit analysis Net Present Values benefit Cost Ratios Nature-Based Income Generating Activities
下载PDF
Cost-benefit analysis of esophageal cancer endoscopic screening in high-risk areas of China 被引量:33
4
作者 Juan Yang wen-Qiang wei +3 位作者 Jin Niu Zhi-Cai Liu Chun-Xia Yang You-Lin Qiao 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第20期2493-2501,共9页
AIM:To estimate the cost-benefit of endoscopic screening strategies of esophageal cancer(EC)in high-risk areas of China. METHODS:Markov model-based analyses were conducted to compare the net present values(NPVs)and th... AIM:To estimate the cost-benefit of endoscopic screening strategies of esophageal cancer(EC)in high-risk areas of China. METHODS:Markov model-based analyses were conducted to compare the net present values(NPVs)and the benefit-cost ratios(BCRs)of 12 EC endoscopic screening strategies.Strategies varied according to the targeted screening age,screening frequencies,and follow-up intervals.Model parameters were collected from population-based studies in China,published literatures,and surveillance data. RESULTS:Compared with non-screening outcomes,all strategies with hypothetical 100 000 subjects saved life years.Among five dominant strategies determined by the incremental cost-effectiveness analysis,screening once at age 50 years incurred the lowest NPV(international dollar-I$55 million)and BCR(2.52).Screening six times between 40-70 years at a 5-year interval[i.e., six times(40)f-strategy]yielded the highest NPV(I$99 million)and BCR(3.06).Compared with six times(40)fstrategy,screening thrice between 40-70 years at a 10-year interval resulted in relatively lower NPV,but the same BCR. CONCLUSION:EC endoscopic screening is cost-beneficial in high-risk areas of China.Policy-makers should consider the cost-benefit,population acceptance,and local economic status when choosing suitable screening strategies. 展开更多
关键词 成本效益分析 食管癌 中国 内镜 风险 检查 时间间隔 净现值
下载PDF
Cost benefit analysis of the use of tranexamic acid in primary lower limb arthroplasty: A retrospective cohort study 被引量:3
5
作者 Niall P McGoldrick Eabhann M O'Connor +2 位作者 Nikos Davarinos Rose Galvin John F Quinlan 《World Journal of Orthopedics》 2015年第11期977-982,共6页
AIM: To examine the cost benefit conferred by the perioperative administration of intravenous tranexamic acid(TXA) in lower limb arthroplasty.METHODS: This study evaluates the use of TXA in 200 consecutive lower limb ... AIM: To examine the cost benefit conferred by the perioperative administration of intravenous tranexamic acid(TXA) in lower limb arthroplasty.METHODS: This study evaluates the use of TXA in 200 consecutive lower limb arthroplasties performed in a single surgeon series. The initial 100 patients(control group) underwent surgery without perioperative administration of TXA while the subsequent 100 patients(TXA group) all received 1 g TXA at the time of induction of anaesthesia. Pre- and post-operative haemoglobin, platelet count, haematocrit, the use of blood product post-operatively, length of stay were examined. A financial analysis of both groups was then undertaken. RESULTS: The mean age of patients in both groups was 63 ± 13 years. There were no significant differences between groups in terms of gender(P = 0.47), proportion of total hip replacement to total knee replacement(P = 0.25) or pre-operative haemoglobin(P = 0.43). In the control group, the transfusion rate was 22%. In the TXA group, the transfusion rate dropped to 2%(P < 0.001). The mean post-operative haemoglobin was 10.82 ± 1.55g/dL in the control group vs 11.33 ± 1.27 g/dL in the TXA group(P = 0.01). The total cost of transfused blood products was €11055 and €603 respectively. The mean length of stay in the control group was 6.53 ± 5.93 d vs 5.47 ± 4.26 d in the TXA group(P = 0.15) leading to an estimated financial saving of €114586. There was one pulmonary embolus in the control group and one deep venous thrombosis in the TXA group.CONCLUSION: Intravenous TXA reduces blood loss in lower limb arthroplasty. This leads to lower transfusion rates, shorter length of stay in hospital and significant financial savings. 展开更多
关键词 ARTHROPLASTY HIP KNEE Tranexamic ACID COST-benefit analysis
下载PDF
Benefit analysis and contribution prediction of engine remanufacturing to cycle economy
6
作者 刘世参 史佩京 +2 位作者 徐滨士 邢忠 谢建军 《Journal of Central South University》 SCIE EI CAS 2005年第S2期25-29,共5页
The first automobile engine remanufacture company in China, Jinan Fuqiang Power Co, Ltd, was introduced. The engine remanufacturing technological process of this company was described. The benefit statistic of remanuf... The first automobile engine remanufacture company in China, Jinan Fuqiang Power Co, Ltd, was introduced. The engine remanufacturing technological process of this company was described. The benefit statistic of remanufacturing 10000 Styer engines were analyzed, and the contribution of engine remanufacturing to cycle economy was predicted. The results show that remanufacturing engineering could use the maximal additional values of obsolete engines, and make contributions to materials conservation, capital saving, energy conservation and environment protection. 10000 engines are supposed to be remanufactured per year, the following benefits would be obtained: reclaiming additional values of RMB3.23 hundred million, saving metallic materials about 7.65 thousand tons, saving energy of 16 million kilowatt-hours, reducing emission of CO2 about 11.3[CD*2]15.3 thousand tons, and providing employment for 500 persons. According to the survey and analysis, tremendous benefits will be gained by the year of 2020. For example, reclaiming additional values per year of 1424[CD*2]2236 hundred million RMB, saving energy per year of 60[CD*2]90 hundred million kilowatt-hours, reducing emission of CO2 about 6.67[CD*2]9.69 million tons. It can be deduced that developing remanufacturing will play an important role in enriching the cycle economy and accelerating the development of national economy. 展开更多
关键词 engine REMANUFACTURING CYCLE ECONOMY benefit analysis CONTRIBUTION PREDICTION
下载PDF
Component Analysis and Calculation for Social Benefits of UHV Assessment 被引量:1
7
作者 Jingshan Luo Dichen Liu +4 位作者 Jun Wu Fan Gao Qixin Wang Kai Wang Xuedong Zhu 《Smart Grid and Renewable Energy》 2016年第10期261-269,共10页
With the rapid development of the UHV power grid, evaluation of the economic and social benefits of the UHV power grid is conducive to guiding the planning and construction of UHV power grid. At present economic benef... With the rapid development of the UHV power grid, evaluation of the economic and social benefits of the UHV power grid is conducive to guiding the planning and construction of UHV power grid. At present economic benefit evaluation system of the UHV power grid is driving to maturity stage on the whole at home and abroad, but it invariably tends to regard social benefits as part of economic benefits, without evaluating social benefit separately. The social benefit evaluation model of UHV power grid is built in case of sufficient investigation. The differentials between social benefit and social cost are calculated respectively by three kinds of solutions according to the constructed social cost evaluation index system and social benefits evaluation index system, conclusion that UHV power grid transmission has better social benefits can be reached by contrastively analyzing the social three kinds of solutions corresponding to benefits. At last, the evaluation model and method are verified and analyzed through the analysis of engineering projects. 展开更多
关键词 UHV Power Grid Social benefit Assessment Model Contrastive analysis Social Cost Social Income Planning and Construction
下载PDF
Implementing an Information System Strategy: A Cost, Benefit, and Risk Analysis Framework for Evaluating Viable IT Alternatives in the US Federal Government
8
作者 Sofia E. Espinoza Joan S. Brooks John Araujo 《International Journal of Communications, Network and System Sciences》 2018年第6期105-132,共28页
In the US Federal government, an analysis of alternatives (AoA) is required for a significant investment of resources. The AoA yields the recommended alternative from a set of viable alternatives for the investment de... In the US Federal government, an analysis of alternatives (AoA) is required for a significant investment of resources. The AoA yields the recommended alternative from a set of viable alternatives for the investment decision. This paper presents an integrated AoA and project management framework for analyzing new or emerging alternatives (e.g., Cloud computing), as may be driven by an information system strategy that incorporates a methodology for analyzing the costs, benefits, and risks of each viable alternative. The case study in this paper, about a business improvement project to provide public health and safety services to citizens in a US Federal agency, is a practical application of this integrated framework and reveals the benefits of this integrated approach for an investment decision. The decision making process in the framework—as an integrated, organized, and adaptable set of management and control practices—offers a defensible recommendation and provides accountability to stakeholders. 展开更多
关键词 analysis of Alternatives BUSINESS Case Cloud Computing COST benefit analysis Information System Strategy
下载PDF
The Environmental Impacts and Economic Benefits on Comprehensively Promoting Alternative Fuel Buses in China: Life-Cycle and Scenario Analysis Based on LEAP Model
9
作者 Siting Xie 《Journal of Geoscience and Environment Protection》 2019年第4期99-121,共23页
With the continuous development of urban public transportation, the harmful GHG emissions and pollutants generated by itself and the consequent issues such as the losses of residents’ health, economic value and resid... With the continuous development of urban public transportation, the harmful GHG emissions and pollutants generated by itself and the consequent issues such as the losses of residents’ health, economic value and residents’ welfare have become the focus of social attention. In order to study the impacts of promoting new energy vehicles on public transportation pollution mitigation and residents’ health benefits, this paper adopts the LEAP model to build some scenarios that fulfill different development needs to quantitatively analyze the ownership of new energy buses, the reduction of pollutants and the losses of residents’ health welfare. It is concluded that promoting new energy buses comprehensively can significantly reduce the emissions of atmospheric pollutants and the economic losses of residents’ health, but cannot fully realize the targets of greenhouse gas reduction under Life Cycle Analysis. 展开更多
关键词 New Energy Buses Emission MITIGATION ECONOMIC benefitS LIFE-CYCLE analysis SCENARIO analysis
下载PDF
Cost-benefit analysis of screening for diabetic retinopathy among Chinese type 2 diabetes: decision from different perspectives of a population-based study 被引量:2
10
作者 Ching-Ching Peng Pesus Chou +6 位作者 Tao-Hsin Tung Wu-Hsiung Chien Fenq-Lih Lee Shih-Jen Chen Shih-Tzer Tsai Chi-Ming Liu Jorn-Hon Liu 《Health》 2009年第4期304-312,共9页
The purpose of this study is to explore whether it is worthwhile to launch a routine diabetic retinopathy (DR) screening for blindness pre-vention among Chinese type 2 diabetes from different perspective based on the ... The purpose of this study is to explore whether it is worthwhile to launch a routine diabetic retinopathy (DR) screening for blindness pre-vention among Chinese type 2 diabetes from different perspective based on the popula-tion-based study in Kinmen, Taiwan. A total of 971 community dwelling adults previously di-agnosed with type 2 diabetes in 1991-1993 un-derwent DR screening in 1999-2002 by a panel of ophthalmologists using on-site indirect oph-thalmoscopy and 45-degree color fundus retinal photographs. The cost-benefit analysis is used to evaluate the DR screening. In terms of bene-fit-cost ratio, the different screening programs for DR could save New Taiwan Dollars (NTD) from 14.38 to 36.83 in discounted costs for each dollar incurred in different screening years from the societal viewpoint for Taiwan and save NTD from 0.81 to 1.80 in different screening years from health care payer’s perspective. The av-erage estimate of willingness-to-pay to translate into benefit yields NTD from 937.8 to 4,689 be- nefits per case due to DR screening in different screening years during 10-year follow-up. The net present value of the DR screening were NTD from -167,318 to -307,251.2 in different screening years. In conclusion, it is worthwhile to initial a routine DR screening of Chinese type 2 diabetes for blindness prevention from the societal per-spective but not from consumer decision based on the willingness-to-pay perspective. 展开更多
关键词 Type 2 DIABETES DIABETIC RETINOPATHY COST-benefit analysis POPULATION-BASED Study
下载PDF
Optimum Environmental Load Design Criterion for Marine Structures Based on Investment and Benefit Analysis 被引量:1
11
作者 Zhang, SH Yu, YF Li, BX 《China Ocean Engineering》 SCIE EI 1998年第2期235-242,共8页
Marine structures operating in natural ocean environment are subjected to various stochastic loads. For design of the marine structures, the most important task is to determine environmental load design criterion. Thi... Marine structures operating in natural ocean environment are subjected to various stochastic loads. For design of the marine structures, the most important task is to determine environmental load design criterion. This paper presents a method to determine the optimum environmental load design criterion for marine structures. This method is based on the investment and benefit analysis and it can reach the design purpose of decreasing total costs during the service life of the structures and increasing economic benefits. 展开更多
关键词 marine structures investment-benefit analysis optimum environmental load design criterion
下载PDF
Eco-economic control mode and benefit analysis of rock desertification region in Huajiang Karst Valley of Guizhou Province 被引量:2
12
作者 Su Weici He Tairong Teng Jianzhen 《Ecological Economy》 2006年第3期289-297,共9页
It is difficult to afforest in rock desertification region and is the key area for eco-environment treatment. To speed up the comprehensive treatment of rock desertification, several anti-rock desertification modes im... It is difficult to afforest in rock desertification region and is the key area for eco-environment treatment. To speed up the comprehensive treatment of rock desertification, several anti-rock desertification modes implemented in Dingtan region, located on the right bank of Huajiang Grand Valley in Beipanjiang Town, are introduced as examples. This paper first analyzes the natural and environmental conditions, the development of rock desertification in the Dingtan region, then the detail of the treatment modes, such as “Chinese wingleaf pricklyash – pig breeding – marsh gas” (Mode One), “amomum villosum – pig breeding – marsh gas” mode (Mode Two), “traditional grain and economic crop (corn, peanut) – amomum villosum or Chinese wingleaf pricklyash” (Mode Three), etc. The eco-economic effects, potential and shortcomings of the above mentioned modes are analyzed and compared. It is proved that Mode One and Mode Two are of good economic effect, but Mode Three of better ecological effect. Solutions to the shortcomings of the modes are also put forward. 展开更多
关键词 生态经济控制模式 土地沙化 喀斯特地貌 贵州
下载PDF
Early infant male circumcision:Systematic review,risk-benefit analysis,and progress in policy 被引量:2
13
作者 Brian J Morris Sean E Kennedy +6 位作者 Alex D Wodak Adrian Mindel David Golovsky Leslie Schrieber Eugenie R Lumbers David J Handelsman John B Ziegler 《World Journal of Clinical Pediatrics》 2017年第1期89-102,共14页
AIM To determine whether recent evidence-based United States polices on male circumcision(MC) apply to comparable Anglophone countries,Australia and New Zealand.METHODS Articles in 2005 through 2015 were retrieved fro... AIM To determine whether recent evidence-based United States polices on male circumcision(MC) apply to comparable Anglophone countries,Australia and New Zealand.METHODS Articles in 2005 through 2015 were retrieved from PubM ed using the keyword "circumcision" together with 36 relevant subtopics.A further PubM ed search was performed for articles published in 2016.Searches of the EMBASE and Cochrane databases did not yield additional citable articles.Articles were assessed for quality and those rated 2+ and above according to the Scottish Intercollegiate Grading System were studied further.The most relevant andrepresentative of the topic were included.Bibliographies were examined to retrieve further key references.Randomized controlled trials,recent high quality systematic reviews or meta-analyses(level 1++ or 1+ evidence) were prioritized for inclusion.A risk-benefit analysis of articles rated for quality was performed.For efficiency and reliability,recent randomized controlled trials,metaanalyses,high quality systematic reviews and large welldesigned studies were used if available.Internet searches were conducted for other relevant information,including policies and Australian data on claims under Medicare for MC.RESULTS Evidence-based policy statements by the American Academy of Pediatrics(AAP) and the Centers for Disease Control and Prevention(CDC) support infant and later age male circumcision(MC) as a desirable public health measure.Our systematic review of relevant literature over the past decade yielded 140 journal articles that met our inclusion criteria.Together,these showed that early infant MC confers immediate and lifelong benefits by protecting against urinary tract infections having potential adverse long-term renal effects,phimosis that causes difficult and painful erections and "ballooning" during urination,inflammatory skin conditions,inferior penile hygiene,candidiasis,various sexually transmissible infections in both sexes,genital ulcers,and penile,prostate and cervical cancer.Our risk-benefit analysis showed that benefits exceeded procedural risks,which are predominantly minor,by up to 200 to 1.We estimated that more than 1 in 2 uncircumcised males will experience an adverse foreskin-related medical condition over their lifetime.Wide-ranging evidence from surveys,physiological measurements,and the anatomical location of penile sensory receptors responsible for sexual sensation strongly and consistently suggested that MC has no detrimental effect on sexual function,sensitivity or pleasure.United States studies showed that early infant MC is cost saving.The evidence supporting early infant MC has further strengthened since the positive AAP and CDC reviews.CONCLUSION Affirmative MC policies are needed in Australia and New Zealand.Routine provision of accurate,unbiased education,and access in public hospitals,will maximize health and financial benefits. 展开更多
关键词 Male CIRCUMCISION EVIDENCE-BASED POLICY Infants Adults Urinary tract INFECTIONS Adverse events Sexually transmitted INFECTIONS GENITAL cancers Riskbenefit analysis COST-benefit
下载PDF
Cost-benefit Analysis of Chestnut Production in Xingtai County
14
作者 Yuji JIN 《Asian Agricultural Research》 2014年第4期33-37,共5页
On the basis of market demand survey of chestnut,this article carries out cost-benefit analysis of the chestnut production in Xingtai County,to understand the profitability and payback period of local chestnut product... On the basis of market demand survey of chestnut,this article carries out cost-benefit analysis of the chestnut production in Xingtai County,to understand the profitability and payback period of local chestnut production.It points out that chestnut production has a high rate of return on investment,and chestnut can be promoted on a large scale in Xingtai County.However,there are still some problems in the production and marketing of chestnut in Xingtai County,such as low level of technology,extensive management,low level of organization,market imperfections and weak brand consciousness.Based on these problems,corresponding recommendations are put forth. 展开更多
关键词 CHESTNUT COST-benefit analysis XINGTAI COUNTY
下载PDF
Benefit analysis of curb parking and study on its optimization model
15
作者 裴玉龙 杨中良 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2003年第3期311-314,共4页
Curb parking lot is a major part of city parking facility with lots of problems, especially in CCA (citycenter area and it has a lot of advantages and has much effect on dynamic traffic as well. It is therefore necess... Curb parking lot is a major part of city parking facility with lots of problems, especially in CCA (citycenter area and it has a lot of advantages and has much effect on dynamic traffic as well. It is therefore necessaryto control the scale of curb parking. Basing the whole benefits of the traffic system and considering the minimumsynthetical cost on curb parking, a optimization model is brought forward of cur. b parking planning in CCAbased on minimum generalized cost. Based on this model, the scale of curb parking can be defined reasonablyto make the whole benefits of traffic system optimum in CCA. 展开更多
关键词 路边停车 优化模型 效益分析 城市中心区域
下载PDF
Empirical Analysis of the Typical Breeding Pattern of Clam in Hongdao Town and the Preliminary Estimates of Costs and Benefits
16
作者 Xijuan YANG Shijun ZHANG 《Asian Agricultural Research》 2014年第9期41-43,49,共4页
Based on the survey data about clam breeding farmers in Hongdao Town in August 2011,this paper analyzes the production and operation of typical clam breeding pattern,and estimates the costs and benefits. Through the a... Based on the survey data about clam breeding farmers in Hongdao Town in August 2011,this paper analyzes the production and operation of typical clam breeding pattern,and estimates the costs and benefits. Through the analysis of operation conditions and economic conditions of Hongdao clam breeding,this paper aims to explore a more reasonable and effective breeding pattern so as to reduce breeding costs and market risks,and increase breeding farmers' income. 展开更多
关键词 Hongdao CLAM BREEDING PATTERN COST-benefit analysi
下载PDF
Constructed Model of Cost/Benefit Analysis Strategy for Stem Corn Borer Sesamia cretica
17
作者 Hassan Flayiah Hassan 《Journal of Agricultural Science and Technology(A)》 2012年第1期138-142,共5页
关键词 玉米螟虫 效益分析 建造成本 策略模型 慢性粒细胞白血病 化学杀虫剂 经济价值 成本控制
下载PDF
Comparative Cost Benefit Analysis of Different Solid Waste Management Scenarios in Basrah, Iraq
18
作者 Sherien Elagroudy Tamer Elkady Fikry Ghobrial 《Journal of Environmental Protection》 2011年第5期555-563,共9页
Solid Waste Management (SWM) system in Basrah has deteriorated recently to the point that only limited waste collection is undertaken in certain urban areas and disposal is largely to uncontrolled dump sites. In this ... Solid Waste Management (SWM) system in Basrah has deteriorated recently to the point that only limited waste collection is undertaken in certain urban areas and disposal is largely to uncontrolled dump sites. In this study, the technical, economical, and environmental aspects of three SWM scenarios were investigated aiming to compare the scenarios and select the most appropriate one for implementation. Scenario 1 was to consider waste disposal into a sanitary landfill. Scenario 2 added waste transportation to transfer station before disposal to a sanitary landfill. Scenario 3 considered waste sorting, recycling and composting followed by landfill disposal in an integrated treatment disposal facility. The current open dumping practice was considered as the baseline scenario. According to economic analysis, the benefits from the revenues of selling the produced recyclables and compost did not improve the ranking of scenario 3. However, scenario 3 has gained positive recognition due to the environmental benefits of waste recycling. Therefore, final recommendations were in favour of scenario 3, which has been approved by the UNICEF, as well. Currently the recommended scenario is under implementation in Basrah, Iraq. 展开更多
关键词 COST-benefit analysis Environmental analysis Economical COST Integrated SWM PLAN
下载PDF
Social Profitability Threshold of High Speed Railway:A Benefit-Cost Analysis
19
作者 Pablo Coto-Millán Vicente Inglada Pedro Casares 《Journal of Transportation Technologies》 2011年第4期107-115,共9页
In this study, the benefit-cost analysis technique for projects evaluation is applied to determine the minimum level of demand that makes a high-speed rail project economically viable in Spain. To get this goal, it is... In this study, the benefit-cost analysis technique for projects evaluation is applied to determine the minimum level of demand that makes a high-speed rail project economically viable in Spain. To get this goal, it is nec- essary to take into account not only the costs and benefits of the high speed railway but also the analysis of the costs and benefits linked to other alternative transport modes, such as plane, private car or bus. The re- sults show that the high-speed rail studied is socially profitable from a traffic volume of 6.5 million passen- gers and for a social discount rate of 4%. Given the benefits associated with network effects, which magni- tude grows parallel to the extension of the high-speed network, this threshold could be significantly reduced in subsequent projects. 展开更多
关键词 HIGH SPEED RAILWAY benefit-cost analysis PASSENGER TRANSPORT
下载PDF
Study on Cost of Environmental Degradation Based on Cost-Benefit Analysis
20
作者 Xu FANG Jiaming ZHU Penghui YANG 《Asian Agricultural Research》 2019年第6期1-4,共4页
With the rapid economic development of China,the environmental degradation brought by economic development cannot be ignored.In order to measure the cost of environmental degradation brought by land projects in the pr... With the rapid economic development of China,the environmental degradation brought by economic development cannot be ignored.In order to measure the cost of environmental degradation brought by land projects in the process of economic development and evaluate a land project,this paper establishes an ecological service evaluation model based on cost-benefit method to analyze the cost and benefit of land development projects from a new perspective,and explore effective strategies to alleviate environmental degradation. 展开更多
关键词 ENVIRONMENTAL DEGRADATION LAND development COST-benefit analysis ECOLOGICAL service assessment
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部