期刊文献+
共找到3,119篇文章
< 1 2 156 >
每页显示 20 50 100
Trends and hotspots in gastrointestinal neoplasms risk assessment: A bibliometric analysis from 1984 to 2022
1
作者 Qiang-Qiang Fu Le Ma +5 位作者 Xiao-Min Niu Hua-Xin Zhao Xu-Hua Ge Hua Jin De-Hua Yu Sen Yang 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第6期2842-2861,共20页
BACKGROUND Gastrointestinal neoplasm(GN)significantly impact the global cancer burden and mortality,necessitating early detection and treatment.Understanding the evolution and current state of research in this field i... BACKGROUND Gastrointestinal neoplasm(GN)significantly impact the global cancer burden and mortality,necessitating early detection and treatment.Understanding the evolution and current state of research in this field is vital.AIM To conducts a comprehensive bibliometric analysis of publications from 1984 to 2022 to elucidate the trends and hotspots in the GN risk assessment research,focusing on key contributors,institutions,and thematic evolution.METHODS This study conducted a bibliometric analysis of data from the Web of Science Core Collection database using the"bibliometrix"R package,VOSviewer,and CiteSpace.The analysis focused on the distribution of publications,contributions by institutions and countries,and trends in keywords.The methods included data synthesis,network analysis,and visualization of international collaboration networks.RESULTS This analysis of 1371 articles on GN risk assessment revealed a notable evolution in terms of research focus and collaboration.It highlights the United States'critical role in advancing this field,with significant contributions from institutions such as Brigham and Women's Hospital and the National Cancer Institute.The last five years,substantial advancements have been made,representing nearly 45%of the examined literature.Publication rates have dramatically increased,from 20 articles in 2002 to 112 in 2022,reflecting intensified research efforts.This study underscores a growing trend toward interdisciplinary and international collaboration,with the Journal of Clinical Oncology standing out as a key publication outlet.This shift toward more comprehensive and collaborative research methods marks a significant step in addressing GN risks.CONCLUSION This study underscores advancements in GN risk assessment through genetic analyses and machine learning and reveals significant geographical disparities in research emphasis.This calls for enhanced global collaboration and integration of artificial intelligence to improve cancer prevention and treatment accuracy,ultimately enhancing worldwide patient care. 展开更多
关键词 Gastrointestinal neoplasms Bibliometric analysis risk assessment Network analysis Research trends
下载PDF
Investigation and Risk Assessment of Alien Invasive Plants in Riparian Zone of Dongjiang River 被引量:2
2
作者 付岚 赵鸣飞 +1 位作者 龚玲 刘全儒 《Agricultural Science & Technology》 CAS 2011年第12期1897-1904,共8页
[Objective] The aim was to conduct investigation and risk assessment of the alien invasive plants in riparian zone of Dongjiang River.[Method] The field survey was carried out by the combination methods of sampling pl... [Objective] The aim was to conduct investigation and risk assessment of the alien invasive plants in riparian zone of Dongjiang River.[Method] The field survey was carried out by the combination methods of sampling plots investigation and route survey,and the whole Dongjiang River was covered.52 sampling points were set in the main streams,and 87 sampling points in tributaries streams,624 quadrats were set in total;multi-index comprehensive evaluation method was adopted for the risk assessment with 6 first-level indexes and 25 second-level indexes.[Result] Through the investigation on the riparian zone of Dongjiang River for 2 years,51 species of alien invasive plants were found,belonging to 17 families and 38 genera.The risk level assessment results of these 51 species showed that 18 species,such as Ageratum conyzoides,belonged to high-level risk with over 60 points;26 species,such as Chenopodium ambrosioides,were between 30 and 60 points which belonged to middle-level risk;7 species,such as Paspalum dilatatum,with less than 30 points belonged to low-level risk.[Conclusion] Basic data on the protection,water environmental management and functional zoning of riparian zone of Dongjiang River were provided. 展开更多
关键词 Alien invasive plants Dongjiang River risk assessment Multi-index comprehensive evaluation
下载PDF
Distribution, Mobility, and Health Risks Assessment of Trace Metals in River Sediments from Intense Agricultural Activity Areas in West Africa
3
作者 Ahbeauriet Ahmed Ouattara Maley-Pacôme Soro +2 位作者 Albert Brou Kouadio Horo Koné Albert Trokourey 《Journal of Materials Science and Chemical Engineering》 2024年第8期12-42,共31页
The economy of West African countries is mainly based on agriculture. However, the trace metal(loid)s contamination status in rivers is relatively unknown in the region. In this work, 45 surface sediments collected fr... The economy of West African countries is mainly based on agriculture. However, the trace metal(loid)s contamination status in rivers is relatively unknown in the region. In this work, 45 surface sediments collected from the Bandama, Comoé, and Bia Rivers in south and south eastern Côte d’Ivoire (West Africa), were analyzed for total metal concentrations and chemical speciation. The results showed that the river sediments were considerably contaminated by Cd and moderately contaminated by As, Cu, Pb, and Zn. Significant spatial variations were observed among the stations but not between the rivers. Metals Cd and Cu were likely to cause more ecological risks. The speciation analysis unravelled that the metal(loid)s partitioned mainly in the residual fraction, with the potential mobile fraction varying from 14% to 28%. The study calls for establishment of strict policies relative to the application of fertilizers and agrochemicals and mining activities to protect the environment and human health risks. 展开更多
关键词 River Sediment Trace Metal (Loid)s Multivariate analysis Potential Ecological risk assessments Sequential Extraction Geochemical Indices
下载PDF
Penetration Study of Key Technologies for Cybersecurity Risk Assessment
4
作者 Lin Ma 《Journal of Electronic Research and Application》 2024年第4期81-87,共7页
In recent years,with the frequent occurrence of cyber security incidents,people have paid more attention to it.Information security risk assessment is a very important research topic.This paper gives a brief overview ... In recent years,with the frequent occurrence of cyber security incidents,people have paid more attention to it.Information security risk assessment is a very important research topic.This paper gives a brief overview of the theory of cybersecurity risk assessment,focuses on the description of the current mainstream cybersecurity risk assessment methods,classifies and compares the existing methods according to the nature of the methods,and analyses the advantages,disadvantages,and application scope of each method.Finally,the main factors affecting the evaluation results are summarized and refined,and future research hotspots in this field are proposed.Through the empirical analysis of the three factors,the influence of the correlation of the three factors,the uncertainty of the evaluation indexes,and the timeliness of the evaluation on the evaluation results are concluded,which provides a reference for future research on evaluation methods. 展开更多
关键词 risk assessment CORRELATION Real-time analysis Uncertainty analysis Quantitative analysis
下载PDF
FAULT TREE ANALYSIS OF SPONTANEOUS COMBUSTION OF SULPHIDE ORES AND ITS RISK ASSESSMENT 被引量:21
5
作者 Wu Chao(Department of Resources Exploitation Engineering, Central South University of Technology, Changsha, 410083, China ) 《Journal of Central South University》 SCIE EI CAS 1995年第2期77-80,共4页
A logic fault tree of mine spontaneous combustion of sulphide ores was built by the fault tree analysis (FTA) based on a lot of mechanism investigation of sulphide ore spontaneous combustion in more than ten mines an... A logic fault tree of mine spontaneous combustion of sulphide ores was built by the fault tree analysis (FTA) based on a lot of mechanism investigation of sulphide ore spontaneous combustion in more than ten mines and review of a great amount of relevant 展开更多
关键词 FAULT TREE analysis SULPHIDE ORES SPONTANEOUS COMBUSTION risk assessment
下载PDF
A risk assessment system for alien plant bio-invasion in Xiamen,China 被引量:10
6
作者 Desmond K.O'TOOLE 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2008年第8期989-997,共9页
Bio-invasion has caused serious ecosystem damage and enormous economic losses in China,and it has been the greatest factor to island bio-diversity reduction.Xiamen,as an important seaport with a relatively high conser... Bio-invasion has caused serious ecosystem damage and enormous economic losses in China,and it has been the greatest factor to island bio-diversity reduction.Xiamen,as an important seaport with a relatively high conservation value,is particularly vulnerable to bio-invasion for its typical island ecosystem as well as frequent human-made disturbance.As a result of field surveys,literature review, and consultation with experts,a list of 67 alien plants identified as major invaders(12 species)and emerging invade... 展开更多
关键词 bio-invasion invasive species alien plants risk assessment
下载PDF
Preoperative risk factor analysis in orthotopic liver transplantation with pretransplant artificial liver support therapy 被引量:8
7
作者 Jin-Zhong Yuan Qi-Fa Ye Ling-Ling Zhao Ying-Zi Ming Hong Sun Shai-Hong Zhu Zu-Fa Huang Min-Min Wang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第31期5055-5059,共5页
AIM: To assess the value of pre-transplant artificial liver support in reducing the pre-operative risk factors relating to early mortality after orthotopic liver transplantation (OLT). METHODS: Fifty adult patient... AIM: To assess the value of pre-transplant artificial liver support in reducing the pre-operative risk factors relating to early mortality after orthotopic liver transplantation (OLT). METHODS: Fifty adult patients with various stages and various etiologies undergoing OLT procedures were treated with molecular adsorbent recycling system (MARS) as preoperative liver support therapy. The study included two parts, the first one is to evaluate the medical effectiveness of single MARS treatment with some clinical and laboratory parameters, which were supposed to be the therapeutical pre-transplant risk factors, the second part is to study the patients undergoing OLT using the regression analysis on preoperative risk factors relating to early mortality (30 d) after OLT. RESULTS: In the 50 patients, the statistically significant improvement in the biochemical parameters was observed (pre-treatment and post-treatment). Eight patients avoided the scheduled Ltx due to significant relief of clinical condition or recovery of failing liver function, 8 patients died, 34 patients were successfully bridged to Ltx, the immediate outcome of this 34 patients within 30d observation was: 28 kept alive and 6 patients died. CONCLUSION: Pre-operative SOFA, level of creatinine, INR, TNF-α, IL-10 are the main preoperative risk factors that cause early death after operation, MARS treatment before transplantion can relieve these factors significantly. 展开更多
关键词 Liver transplantation Artificial liver Sequential Organ Failure assessment risk factors 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
8
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
The Pollution Character Analysis and Risk Assessment for Metals in Dust and PM_(10) around Road from China 被引量:5
9
作者 CHEN Rong Hui WANG Bao Qing +1 位作者 WANG Ze Bei YAO Shu 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2015年第1期44-56,共13页
INTRODUCTION In recent years, with the gradual improvement of road construction, the rapid increase of the number of motor vehicles, vehicle emissions and the current poor vehicle performance, poor vehicle maintenance... INTRODUCTION In recent years, with the gradual improvement of road construction, the rapid increase of the number of motor vehicles, vehicle emissions and the current poor vehicle performance, poor vehicle maintenance, higher emission factor and so on, air pollution caused by the traffic issues becomes the focus of people attention. The harmful substances are gradually accumulated to atmosphere particles surrounding roads due to dust particles (soil dusts, road dusts, construction dusts), coal emissions, industrial emissions, vehicle emissions, biomass burning, secondary particles, which has a certain harmful influence to the atmosphere, soil and plants surrounding roads. 展开更多
关键词 The Pollution Character analysis and risk assessment for Metals in Dust and PM around Road from China
下载PDF
Comparison of Risk Assessment for a Nuclear Power Plant Construction Project Based on Analytic Hierarchy Process and Fuzzy Analytic Hierarchy Process 被引量:6
10
作者 Dae-Woong Shin Yoonseok Shin Gwang-Hee Kim 《Journal of Building Construction and Planning Research》 2016年第3期157-171,共15页
Recently, plant construction throughout the world, including nuclear power plant construction, has grown significantly. The scale of Korea’s nuclear power plant construction in particular, has increased gradually sin... Recently, plant construction throughout the world, including nuclear power plant construction, has grown significantly. The scale of Korea’s nuclear power plant construction in particular, has increased gradually since it won a contract for a nuclear power plant construction project in the United Arab Emirates in 2009. However, time and monetary resources have been lost in some nuclear power plant construction sites due to lack of risk management ability. The need to prevent losses at nuclear power plant construction sites has become more urgent because it demands professional skills and large-scale resources. Therefore, in this study, the Analytic Hierarchy Process (AHP) and Fuzzy Analytic Hierarchy Process (FAHP) were applied in order to make comparisons between decision-making methods, to assess the potential risks at nuclear power plant construction sites. To suggest the appropriate choice between two decision-making methods, a survey was carried out. From the results, the importance and the priority of 24 risk factors, classified by process, cost, safety, and quality, were analyzed. The FAHP was identified as a suitable method for risk assessment of nuclear power plant construction, compared with risk assessment using the AHP. These risk factors will be able to serve as baseline data for risk management in nuclear power plant construction projects. 展开更多
关键词 COMPONENT Analytic Hierarchy Process (AHP) Fuzzy Analytic Hierarchy Process (FAHP) Nuclear Power plant Reactor Containment Building (RCB) risk assessment
下载PDF
Non-parametric Statistical Analysis and Spatial Distribution of the Regional Geochemical Data of the Okiep Copper District,Namaqualand,South Africa:Implications for Anthropogenic Influence and Risk Assessment
11
作者 Robert N.Hansen 《地学前缘》 EI CAS CSCD 北大核心 2009年第S1期69-69,共1页
The Okiep Copper District is the oldest mining district in South Africa with a legacy of more than 150 years of mining.This legacy can be felt in the presence of large tailings dams scattered throughout the area.These... The Okiep Copper District is the oldest mining district in South Africa with a legacy of more than 150 years of mining.This legacy can be felt in the presence of large tailings dams scattered throughout the area.These tailings have a deleterious impact on the surrounding environment.To use geochemical methods in determining the scale of the impact, pre-mining background levels need to be determined. This is especially difficult in areas for which 展开更多
关键词 statistical analysis METALS soil risk assessment
下载PDF
Invasion Risk Assessment of Exotic Plant Praxelis clematidea in Zhengzhou
12
作者 Li Wenzeng Wang Zhihong 《Plant Diseases and Pests》 CAS 2017年第2期43-46,共4页
To reduce the harms of plant invasion,the risk assessment for biological invasion of exotic species( including intentionally introduced species and accidentally introduced species) is particularly important. Through... To reduce the harms of plant invasion,the risk assessment for biological invasion of exotic species( including intentionally introduced species and accidentally introduced species) is particularly important. Through data review,investigation research and expert consultation,risk assessment system and standard for exotic species invasion in Zhengzhou region was established. Risk of Praxelis clematidea was assessed,in order to provide a reference for possible biological invasion of exotic plants in Zhengzhou. 展开更多
关键词 plant invasion risk assessment Praxelis clematidea Zhengzhou
下载PDF
Levels of Genotoxic and Carcinogenic Ingredients in Plant Food Supplements and Associated Risk Assessment
13
作者 Suzanne J. P. L. van den Berg Patrizia Restani +2 位作者 Marelle G. Boersma Luc Delmulle Ivonne M. C. M. Rietjens 《Food and Nutrition Sciences》 2011年第9期989-1010,共22页
The present study describes the selection, analysis and risk assessment of genotoxic and carcinogenic ingredients of botanicals and botanical preparations which can be found in food and plant food supplements (PFS). F... The present study describes the selection, analysis and risk assessment of genotoxic and carcinogenic ingredients of botanicals and botanical preparations which can be found in food and plant food supplements (PFS). First an inventory was made of botanical ingredients that are of possible concern for human health because of their genotoxic and/or carcinogenic properties. In total, 30 botanical ingredients were selected and subsequently judged for their actual genotoxic and/or carcinogenic potential. Among the 30 compounds considered, 18 compounds were judged to be both genotoxic and carcinogenic. Interestingly, the majority of these compounds belong to the group of alkenylbenzenes or unsaturated pyrrolizidine alkaloids. Subsequently, based on available carcinogenicity data and estimated daily human exposure that was determined focusing on the intake from PFS, the Margin of Exposure (MOE) was calculated for the alkenylbenzenes estragole, methyleugenol, safrole and β-asarone. Calculating the MOEs for intake estimates of these alkenylbenzenes from PFS resulted in MOE values that were generally lower than 10,000 and often lower than 100. In some cases the MOE was even below 10 meaning that the estimated daily intake is in the range of dose levels causing malignant tumors in experimental animals. This result indicates that the use of PFS containing the genotoxic carcinogens estragole, methyleugenol, safrole or β-asarone might raise a potential concern for human health and would be of high priority for risk management. 展开更多
关键词 plant Food SUPPLEMENTS GENOTOXICITY CARCINOGENICITY Dietary EXPOSURE Benchmark Dose Modeling Margin of EXPOSURE Alkenylbenzenes Chemical analysis risk assessment
下载PDF
Risk Assessment,Management and Application in Nuclear Power Plant Operation
14
作者 圣国龙 邱艳荣 李琼哲 《Journal of Donghua University(English Edition)》 EI CAS 2014年第6期895-898,共4页
To introduce the basic concepts of technical specification of nuclear power plant,a risk assessment and management technique based on the probabilistic safety analysis( PSA) method was proposed. The risk-informed meth... To introduce the basic concepts of technical specification of nuclear power plant,a risk assessment and management technique based on the probabilistic safety analysis( PSA) method was proposed. The risk-informed method was used,and an example was given to show how to use some specific risk metrics like CDF / LERF /ICDP / ILERP to analyze and manage the risk associated with activities in nuclear power plant operation. The advantage of this technique can be concluded from this paper,and this technique should be used more widely and deeply in nuclear industry. 展开更多
关键词 technical specification probabilistic safety analysis(PSA) risk assessment risk management
下载PDF
Introduction of New Method on Engineering Risk Assessment:Engineering Errors and Effects Analysis(3EA)
15
作者 Mohammad Mahdi Izadi 《Management Studies》 2018年第6期527-530,共4页
Construction and commissioning accidents investigation shows that engineer’s errors in basic and detailed phases are the main causes.It will be gained more efficiency of investment when a relevant method is applied f... Construction and commissioning accidents investigation shows that engineer’s errors in basic and detailed phases are the main causes.It will be gained more efficiency of investment when a relevant method is applied for error identification and risk assessment in basic and detailed phases.Most of risk assessment methods are related to construction phase,meanwhile hidden risks that were happen in previous phases cannot be found by these methods.Although HAZOP study can be applied in detail phase but it can help to find process defections.Importance of identifying risks in basic and detailed phases is to apply preventive actions against birth and grows risks.This risk assessment method can reduce costs and improve environmental protection,safety,and reliability of designs.The main purpose of this study is to identify engineer’s errors and analyse their HSE effects.The method is applied in seven oil and gas engineering projects in Iran,raising the level of engineer’s attention to safety precautions and environmentally-friendly design,reducing the cost of improving the level of safety and environmental protection,improving environmental protection,safety,and design reliability,and improving procedures related to design process and control have been achieved. 展开更多
关键词 ENGINEERING ERRORS and EFFECTS analysis(3EA) ENGINEERING error detailed EFFECTIVENESS control risk assessment
下载PDF
The Analysis and Assessment of the Creation Investment Risk in the High and New Technology, Enterprise
16
作者 Zhongjun Zhang Zhizhong Peng 《Chinese Business Review》 2004年第9期62-66,共5页
The creation risk investmentof the high and new technology enterprise isthe way to finance:and invest for the business period. After we putting the capital into the high and new. technology project.that is in the dev... The creation risk investmentof the high and new technology enterprise isthe way to finance:and invest for the business period. After we putting the capital into the high and new. technology project.that is in the devetopment stage, the enterprise can, acquire high, increase, by the. support and assistance 'of, the. capital and management. After the enterprise grew up, it can achieve high benefits by selling stock, attorning the enterprise, and dealing property rights, etc. Finally it secedes form the enterprise invested. The purpose of total analysis in the respective stage for the business investment cause including cause prosperities, object, risk, is to comprehensively understand the effect on the anticipation ratio of the benefit, investment distribution, the stock property proportion which is offered by the activity content, and the emphasis of the assessment in the respective stages of the creation risk investment cause. 展开更多
关键词 high and new technology enterprise business investment risk analysis and assessment
下载PDF
Maritime Oil Spill Risk Assessment for Hanhikivi Nuclear Power Plant
17
作者 Juho Helander 《Journal of Energy and Power Engineering》 2015年第2期166-178,共13页
Fennovoima is planning to build a new nuclear power plant unit-Hanhikivi 1, on a greenfield site in Northern Finland. A nearby maritime oil spill accident is one of the external events analysed in the probabilistic ri... Fennovoima is planning to build a new nuclear power plant unit-Hanhikivi 1, on a greenfield site in Northern Finland. A nearby maritime oil spill accident is one of the external events analysed in the probabilistic risk assessment of the plant. In the worst case, the oil could cause a loss of the ultimate heat sink by blocking the sea water intake screens. By considering the maritime traffic, oil transport and oil spill accident data in the Baltic Sea area, the annual probabilities of nearby, significant oil spills are evaluated. Event tree analysis is used to evaluate the probability that significant amount of oil enters the plant intake tunnel. The spill behaviour is considered, including oil spreading, dissolution, dispersion and movement due to wind and currents. In addition, oil combat measures including the use ofoil booms and skimmers are evaluated. 展开更多
关键词 Probabilistic risk assessment oil spill oil accident event tree analysis Baltic Sea.
下载PDF
Multi-mycotoxin exposure and risk assessments for Chinese consumption of nuts and dried fruits 被引量:6
18
作者 WANG Yu-jiao NIE Ji-yun +3 位作者 YAN Zhen LI Zhi-xia CHENG Yang Saqib Farooq 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2018年第7期1676-1690,共15页
In this study, 15 mycotoxins were detected in 233 nut and dried fruit samples from China. The 15 mycotoxins included aflatoxins (AFs: AFB1, AFB2, AFG1 and AFG2), trichothecene toxins (TCs: T-2, ZEA, ENA, ENA1, EN... In this study, 15 mycotoxins were detected in 233 nut and dried fruit samples from China. The 15 mycotoxins included aflatoxins (AFs: AFB1, AFB2, AFG1 and AFG2), trichothecene toxins (TCs: T-2, ZEA, ENA, ENA1, ENB, ENB1 and BEA), Alternaria toxins (ATs: TEN, AOH and AME) and ochratoxin A (OTA). The mycotoxins were detected in 47.6% of the samples and all 15 of the mycotoxins were found. Two samples were positive for AFB1 and exceeded the maximum tolerable levels allowed in China. The contamination levels of the mycotoxins found in nuts, dried jujubes, raisins, dried figs and dried Iongans were in the ranges of 0.1-462.7, 0.2-247.3, 0.8-10.1,0.2-384.1 and 0.1-89.2 μg kg^-1, respectively. Dried figs (80.0%) had the highest incidence of mycotoxins, followed by dried Iongans (60.0%), dried jujubes (57.1%), nuts (43.6%) and raisins (26.7%). The estimated daily intake (EDI) values of each individual mycotoxin and all of the mycotoxins collectively were calculated by both the deterministic approach (DA) and the probability approach (PA). For risk characterization, dietary exposure to TCs, ATs and OTA through consumption of nuts and dried fruits according to both approaches, showed no health risk to Chinese adults by exposure to either individual mycotoxins or in combination. To the best of our knowledge, this is the first work in which risk assessment of multimycotoxins is performed, specifically including the emerging ENNs and BEA, in nuts and dried fruits of China. 展开更多
关键词 mycotoxins risk assessment deterministic analysis probabilistic analysis NUTS dried fruits
下载PDF
Comparing rockfall hazard and risk assessment procedures along roads for different planning purposes 被引量:4
19
作者 MINEO Simone 《Journal of Mountain Science》 SCIE CSCD 2020年第3期653-669,共17页
Hazard and risk assessment procedures of different types of rockfall were analyzed to compare their outcomes when they are applied to the same case study.Although numerous methodologies are available in literature,roc... Hazard and risk assessment procedures of different types of rockfall were analyzed to compare their outcomes when they are applied to the same case study.Although numerous methodologies are available in literature,rockfall hazard and risk analyses are often limited to standard estimations,affected by a margin of uncertainty,especially when relevant engineering projects are about to be realized.Based on the design purpose,different types of approaches can be chosen among the qualitative and quantitative ones available in literature,which allow different levels of analysis.One of the main criticisms related to rockfall events is the risk affecting linear structures,such as road or railways,due both to their strategic relevance for trade and communications and to the great entity of the exposed value(traffic units)traveling along them.In this perspective,a comparison between the qualitative method known as Evolving Rockfall Hazard Assessment(EHRA),the semi-quantitative modified Rockfall Hazard Rating System(RHRS)and the quantitative Rockfall Risk Management(RoMa)approach is herein commented according to a practical application to a case study.It is the case of the rockfall threat along slopes crossed by a strategic road connecting two of the most known spots of eastern Sicily(Italy),at the Taormina tourist complex.Data were retrieved from both recent literature and technical surveys on field.Achieved results highlight how the approaches are affected by a different level of detail and uncertainty,arising also by some necessary assumption that must be taken into account,especially when mitigation measures or territory planning have to be designed.Achieved results can be also taken into account for similar studies worldwide,in order to choose the most suitable procedure based on the design purpose.This is indeed crucial in the perspective of the optimization of time and economic resources in the territorial planning practice. 展开更多
关键词 ROCKFALL risk Rockfal HAZARD Event Tree analysis EVOLVING ROCKFALL HAZARD assessment(EHRA) ROCKFALL HAZARD Rating System(RHRS) Rockfall risk Management(RoMa)
下载PDF
Landslide Hazard and Risk Assessment on the Northern Slope of Mt. Changbai, China 被引量:3
20
作者 LIU Zhenghua ZHANG Yanbin +1 位作者 Yoshiharu ISHIKAWA Hiroyuki NAKAMURA 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2008年第1期214-224,共11页
Landslide hazard and risk assessment on the northern slope of Mt. Changbai, a well-known tourist attraction near the North Korean-Chinese border, are assessed. This study is divided into two parts, namely, landslide h... Landslide hazard and risk assessment on the northern slope of Mt. Changbai, a well-known tourist attraction near the North Korean-Chinese border, are assessed. This study is divided into two parts, namely, landslide hazard zonation and risk assessment. The 1992 Anbalagan and Singh method of landslide hazard zonation (LHZ) was modified and used in this area. In this way, an Associative Analysis Method was used in representative areas to get a measure for controlling factors (slope gradient, relative relief, vegetation, geology, discontinuity development, weak layer thickness and ground water). For the membership degree of factor to slope failure, the middle range of limited values was used to calculate LHZ. Based on an estimation of the potential damage from slope failure, a reasonable risk assessment map was obtained using the relationship of potential damage and probable hazard to aid future planning and prediction and to avert loss of life. 展开更多
关键词 Landslide Hazard Zonation (LHZ) controlling factor Associative analysis Method membership degree risk assessment TOURISM China
下载PDF
上一页 1 2 156 下一页 到第
使用帮助 返回顶部