检索结果-内蒙古大学图书馆

RBCA closure at DNAPL sites (vol 17, pg 78, 1998)

GROUND WATER MONITORING AND REMEDIATION 1998年第4期18卷 196-196页

作者： Sheahan, JW Ball, RO Hahn, PE Hahn, MW Joseph W. Sheahan CPG is president of Ground Water Solutions Inc. (2500 Kerry St. Ste. 202 Lansing MI 48912) 346–5080 346–5179) and developer of Optimal Resource Allocation an interactive PC-based strategic planning and project management system. Sheahan is a hydrogeologist with 20 years experience in ground water quality issues and is a past president of the Michigan Section of the American Institute of Professional Geologists. Ground Water Solutions Inc. specializes in the facilitation and management of projects involving subsurface contamination. Other services include analysis and communication of ground water issues peer review and litigation support. Roy O. Ball P.E. Ph.D. received his B.S. in civil engineering from the University of Florida his M.S. in environmental health engineering from the University of Texas at Austin and his Ph.D. in environmental engineering from the University of Delaware. He is a registered professional engineer in Delaware Illinois Indiana Minnesota and Wisconsin. Dr. Ball is currently a principal of ENVIRON International Corp. (750 W. Lake Cook Rd. Ste. 420 Buffalo Grove IL 60089 520–1155 520–9490) in Chicago. He has more than 25 years experience in environmental engineering and consulting primarily for industry. Dr. Ball directs numerous RI/FS and remediation activities at Superfund RCRA Corrective Action and Voluntary Cleanup Program Sites.

The closure of sites with identified or suspected DNAPL (dense nonaqueous phase liquids) under the requirements of the Resources Conservation and Recovery Act of 1976 (RCRA), or the Comprehensive environmental Response, Compensation and Liability Act of 1980 (CERCLA) has not been well defined. With respect to RCRA, the U.S. environmental Protection Agency (EPA) has required that all contamination must be removed at closure such that no residual risk to human health or the environment remains. Therefore, even though many states administering the RCRA program have adopted or are considering Risk-Based Corrective Action (RBCA) procedures (including the statistical methods described in SW-846) for RCRA closure, the treatment of DNAPL is, at best, challenging. The methodology for closure in CERCLA is described in “Risk Assessment Guidelines for Super-fund (RAGS),” which requires that risks above the National Contingency Plan criteria must be remediated, preferably by on-site or in situ destruction. Most risk-based Brownfield or voluntary cleanup programs do not provide any explicit allowance for DNAPL. However, while the ASTM methodology for RBCA in E1739-95 (ASTM 1995) does not explicitly treat the problem of DNAPL, a basic framework for DNAPL assessment is implicitly provided. A uniform methodology for RBCA closure of VOC (volatile organic compounds) DNAPL sites can be used to achieve the program objectives of RCRA, CERCLA, and Brownfield or voluntary cleanup programs. The regulatory acceptance of the application of RBCA methods to DNAPL sites will require education and discussion, but the use of a uniform methodology should facilitate acceptance.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Prototyping on a MSME’s website to increase its products sales and promotion (Case;A local MSME in Penajam Paser Utara Regency)

引用

AIP Conference Proceedings 2024年第1期2920卷

作者： Budiana Fitria Endarwati I. Putu Deny Arthawan Sugih Prabowo Chandra Suryani Rahendaputri Haidar Dzaki Sumpena Janter Alexander Sibatuara Industrial Engineering Program Department of Industrial Process and Technology Institut Teknologi Kalimantan Balikpapan Indonesia Information System Program Department of Mathematics and Information Technology Institut Teknologi Kalimantan Balikpapan Indonesia Environmental Engineering Program Department of Earth and Environmental Sciences Institut Teknologi Kalimantan Balikpapan Indonesia

Penajam Paser Utara (PPU), a regency of East Kalimantan Province has a potential resource in the fishery sector that produces processed fish local products (particularly prawn crackers). The local products need to be introduced more widely to the people by using digital marketing methods. This is to increase the engagement of tourists visiting PPU on its local products. This research only focused on the website’s prototype, a final step in the user experience (UX) design of the website following the UX design lifecycle. The website was developed based on the local micro, small, and medium enterprise (MSME)’s requirements, and by interviewing a local MSME entrepreneur. A competitive audit was also done to find the strengths and the weaknesses of other e-commerce websites/applications using questionnaires. The results are some features that our customers are concerned about the most are the availability of promo or discount, and also free shipping. As a final result a website design was built, that can be used further by a local MSME in that website design was approved by the entrepreneur Indirectly, the increase of the website’s traffic by its visitors may impact positively to the MSME’s products sales and promotion.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Association of postnatal exposure to mixture of bisphenol A, Di-n-butyl phthalate and Di-(2-ethylhexyl) phthalate with Children's IQ at 5 Years of age: Mothers and Children's environmental health (MOCEH) study

引用

Chemosphere 2024年 347卷 140626页

作者： Ham, Dajeong Ha, Mina Park, Hyesook Hong, Yun-Chul Kim, Yangho Ha, Eunhee Bae, Sanghyuk Department of Preventive Medicine College of Medicine The Catholic University of Korea Seoul Korea Republic of Department of Preventive Medicine College of Medicine Dankook University Cheonan Korea Republic of Department of Preventive Medicine College of Medicine Graduate Program in System Health Science and Engineering Ewha Womans University Seoul Korea Republic of Department of Preventive Medicine College of Medicine Seoul National University Seoul Korea Republic of Department of Occupational and Environmental Medicine University of Ulsan College of Medicine Ulsan Korea Republic of Department of Occupational and Environmental Medicine College of Medicine Ewha Womans University Seoul Korea Republic of Environmental Health Center College of Medicine The Catholic University of Korea Seoul Korea Republic of

Early childhood is important for neurodevelopment, and exposure to endocrine disruptors such as bisphenol A (BPA) and phthalates in this period may cause neurodevelopmental disorders and delays. The present study examined the association between exposure to mixtures of BPA and three metabolites of phthalates in early childhood and IQ at 5 years of age. The Mother and Children's environmental Health (MOCEH) study is a prospective birth cohort study conducted in Korea with 1751 pregnant women enrolled from 2006 to 2010. After excluding those without relevant data, 47 children were included in the final analysis. We measured children's urinary concentrations of metabolites of endocrine-disrupting chemicals (Bisphenol A, mono-(2-ethyl-5-oxohexyl) phthalate, mono-(2-ethyl-5-hydroxyhexyl) phthalate and mono-(2-ethyl-5-butyl) phthalate) at ages of 24 and 36 months. We evaluated the children's IQ with the Korean Wechsler Intelligence Test at the age of 5 years. After adjusting for potential confounders, a multiple linear regression was conducted to examine the associations between individual endocrine-disrupting chemicals and the IQ of the children. Weighted Quantile Sum (WQS) regression and quantile-based g-computation were used to assess the association between IQ at age 5 and exposure to mixtures of BPA and phthalates. In the single-chemical analyses, mono-(2-ethyl-5-butyl) phthalate exposure at 36 months was adversely associated with children's IQ (β = −4.93, 95% confidence interval (CI): -9.22, −0.64). In the WQS regression and quantile-based g-computation analyses, exposure to the mixture of BPA and phthalates was associated with lower IQ [β = −9.13 (P-value = 0.05) and β = −9.18 (P-value = 0.05), respectively]. The largest contributor to the overall association was exposure to mono-(2-ethyl-5-butyl) phthalate at 36 months. In the present study, postnatal exposure to mixtures of BPA and three metabolites of phthalates was associated with decreased IQ of children at ag

关键词： Metabolites

来源：评论

学校读者我要写书评

暂无评论

THE IN-TANK OIL-WATER SEPARATOR

引用

NAVAL ENGINEERS JOURNAL 1986年第3期98卷 209-215页

作者： WILLNER, NB DAIGNEAULT, KD Norman B. Willnerhas been employed by the Naval Sea System Command (NA VSEA) for the past five years as a program manager in the Oil Pollution Abatement Branch. His responsibilities include the design development and installation of shipboard systems to control oily waste. He is also the task leader for environmental pollution control systems for the AOE-6 and YFRT ship designs. After attending the University of Maryland Mr. Willner worked as an engineer for the National Bureau of Standards General Services Administration and the U. S. Forest Service. Mr. Willner is a member of ASNE and ASME. Kevin D. Daigneaultis currently working in the Fluid Systems Division of M. Rosenblatt & Son Inc. A graduate of Maine Maritime Academy he received a bachelor of science degree in marine engineering with a minor degree in engineering science. A U.S.C.G. licensed 3rd assistant engineer Mr. Daigneault has experience working with shipboard oil/water separator and sewage systems as well as municipal and residential pollution abatement systems. He is an ASNE member.

Recently enacted public law and international treaties prohibit the discharge of oily wastes from oceangoing ships. To comply with these laws, the U.S. Navy and the Department of Defense (DOD) have issued a directive implementing standards for the prevention of oil pollution from U.S. Navy ships. Because of unique equipment and system design requirements for combatant and auxiliary ships in the U.S. Navy, research and development (R&D) was initiated to develop oil/water separator (OWS) systems. Over the past ten years, three systems were developed that met the Navy's requirements and are currently installed aboard Navy ships. Recently, a new generation of oil/water separator was conceived. Using existing oil coalescing theory and equipment already in the fleet, an in-tank oil/water separator (ITOWS) was developed. This new separator, installed aboard a naval combatant for testing, has met or exceeded all system requirements. Following a satisfactory operational evaluation by an independent U.S. Navy test command, the ITOWS will be specified for installation aboard new U.S. Navy ships. This article reviews current U.S. Navy OWS designs and introduces the ITOWS system currently undergoing final evaluation.

关键词： NAVAL VESSELS

来源：评论

学校读者我要写书评

暂无评论

Evaluation of the Mechanisms Acting on the Atlantic Meridional Overturning Circulation in CESM2 for the 1pctCO_(2) Experiment

引用

Journal of Atmospheric Science Research 2024年第1期7卷 40-58页

作者： Lívia Sancho Elisa Passos Marcio Cataldi Luiz Paulo de Freitas Assad Luiz Landau Laboratory of Computational Methods in Engineering Civil Engineering ProgramAlberto Luiz Coimbra Institute for Graduate Studies and Research in EngineeringFederal University of Rio de JaneiroRio de Janeiro21941-617Brazil Civil Engineering Program Alberto Luiz Coimbra Institute for Graduate Studies and Engineering ResearchFederal University of Rio de JaneiroRio de Janeiro21941-617Brazil Physical Oceanography Laboratory Department of Physical OceanographyFaculty of OceanographyRio de Janeiro State UniversityRio de Janeiro20559-900Brazil Climate System Monitoring and Modeling Laboratory Water Resources and Environmental EngineeringFluminense Federal University24020-140Brazil Regional Atmospheric Modeling Group(MAR) Physics of the EarthDepartment of PhysicsRegional Campus of International Excellence(CEIR)“Campus Mare Nostrum”University of MurciaMurcia30100Spain Department of Meteorology Institute of GeosciencesFederal University of Rio de JaneiroRio de Janeiro21941-617Brazil

The Atlantic Meridional Overturning Circulation(AMOC)is a crucial component of the Earth’s climate system due to its fundamental role in heat distribution,carbon and oxygen transport,and the *** climate components,such as the atmosphere and sea ice,influence the *** the physical mechanisms of those interactions is paramount to increasing knowledge about AMOC’s *** this study,the authors used outputs from the Community Earth system Model version 2 and observational data to investigate changes in theAMOC and the associated physical *** DECK experiments were evaluated:piControl and 1pctCO_(2),with an annual increase of 1%of atmospheric CO_(2).The analysis revealed a significant decrease in the AMOC,associated with changes in mixed layer depth and buoyancy in high latitudes of the North Atlantic,resulting in the shutdown of deep convection and potentially affecting the formation of North Atlantic Deep Water and Antarctic Bottom Water.A vital aspect observed in this study is the association between increased runoff and reduced water evaporation,giving rise to a positive feedback ***,the rates of freshwater spreading have intensified during this period,which could lead to an accelerated disruption of the AMOC beyond the projections of existing models.

关键词： AMOC Meridional cell Climate change Deep circulation CESM2 results CMIP6

来源：评论

学校读者我要写书评

暂无评论

Association of paternal cadmium and other heavy metal exposure to birth outcomes using propensity score matching.

引用

Chemosphere 2023年第Pt 1期311卷 136792页

作者： Lee, Yu Min Kim, Yangho Park, Hyesook Hong, Yun-Chul Ha, Mina Kim, Young Ju Ha, Eun Hee Department of Occupational and Environmental Medicine Severance Hospital Seoul Korea Republic of Department of Occupational and Environmental Medicine Ulsan University Hospital University of Ulsan College of Medicine Ulsan Korea Republic of Department of Preventive Medicine College of Medicine Ewha Medical Research Center Ewha Womans University Seoul Korea Republic of Graduate Program in System Health Science and Engineering Ewha Womans University Korea Republic of Department of Preventive Medicine Seoul National University College of Medicine Seoul Korea Republic of Department of Preventive Medicine College of Medicine Dankook University Cheonan Korea Republic of Department of Obstetrics and Gynecology College of Medicine Ewha Womans University Seoul Korea Republic of Department of Environmental Medicine College of Medicine Ewha Womans University Seoul Korea Republic of

Background: Human exposure to cadmium has various effects on health, especially on male reproductive organs. Although it is widely known that prenatal maternal cadmium exposure can affect birth outcomes, the effect of paternal exposure to cadmium remains unclear. Objectives: This study aimed to evaluate the effect of paternal cadmium exposure on fetal growth by considering maternal cadmium exposure and exposure to other heavy metals, namely mercury and lead. Methods: The Mothers and Children's environmental Health (MOCEH) study is a prospective birth cohort study in Korea. Overall, 1313 families (father-mother-child triple) without child abnormalities and who completed paternal whole blood cadmium assessments were included in this study. Families were divided into two subgroups based on the blood sampling periods, namely early and late pregnancy. Subjects were selected as follows: one family triple with a high level of paternal cadmium and two triples with low levels of paternal cadmium, using the method of propensity score matching. And linear regression analyses were performed. Results: The group with high paternal cadmium exposure (80% or more;1.93 μg/L) had lower birth weight infants compared to the group with low cadmium concentrations (β(se) = −0.21(0.10);p-value = 0.0283). After stratification by infant sex, prenatal paternal cadmium exposure significantly reduced the birth weight of females in subgroups of different sampling times, namely early pregnancy (β(se) = −0.52 (0.22);p-value = 0.0170) and late pregnancy (β(se) = −0.43 (0.18);p-value = 0.0160). Finally, after performing propensity score matching in the early pregnancy measurement group, it was found that the prenatal exposure of father to cadmium significantly reduced birth weight in females (β(se) = −0.72(0.25);p-value = 0.0047). Conclusion: This study assessed the effect of paternal cadmium exposure on birth outcomes in family units consisting of a father, mother, and child. Prenatal paternal cadmi

关键词： Cadmium

来源：评论

学校读者我要写书评

暂无评论

Alert and Response of Earthquake and Tsunami for Community Based Disaster Risk Reduction

引用

Journal of Physics: Conference Series 2021年第1期1811卷

作者： Rr M I Retno Susilorini Andre Kurniawan Pamudji Ridwan Sanjaya Amrizarois Ismail Ardhito Hayyu Amasto Department of Infrastructure and Environmental Engineering Faculty of Environmental Science and Technology Soegijapranata Catholic University Semarang Master Program of Environmental and Urban Studies Faculty of Environmental Science and Technology Soegijapranata Catholic University Semarang Department of Information System Faculty of Computer Science Soegijapranata Catholic University Semarang

Indonesia had been suffered by earthquake and tsunami for many centuries. Since many lives have taken by tsunami strikes, alert and response system are very important as important part of Disaster Risk Reduction, especially in area with high population density. This research conducted in Kangkung fishing village in Bandar Lampung coastal area which is an earthquake and tsunami prone area. The aim of the research is to study alert and response of Community Based Disaster Risk Reduction. The research conducted by qualitative method and purposive-descriptive approach. There were 53 respondents which participated in the survey and interview. It is reported that 'Smart Resilient City' model suitable for community needs of alert and response of earthquake and tsunami disaster. This research meets conclusion that 'Smart Resilient City' model may become a great solution in Community Based Disaster Risk Reduction to cope with the hazard of earthquake and tsunami comprehensively and sustainably.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Emergence of microplastics in the aquatic ecosystem and their potential effects on health risks: The insights into Vietnam

引用

Journal of environmental Management 2023年 344卷 118499页

作者： Nguyen, Minh-Ky Lin, Chitsan Nguyen, Hoang-Lam Le, Van-Re KL, Priya Singh, Jagpreet Chang, Soon W. Um, Myoung-Jin Nguyen, D. Duc Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Faculty of Environment and Natural Resources Nong Lam University Ho Chi Minh City700000 Viet Nam Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Department of Civil Engineering McGill University Montreal Canada Ho Chi Minh City700000 Viet Nam Department of Civil Engineering TKM College of Engineering Kollam691005 India Department of Chemistry University Centre for Research & Development Chandigarh University Punjab Mohali140413 India Department of Civil & Energy System Engineering Kyonggi University Suwon Korea Republic of Faculty of Environmental and Food Engineering Nguyen Tat Thanh University 300A Nguyen Tat Thanh District 4 Ho Chi Minh City755414 Viet Nam

The increase of microplastic contamination in Vietnam is a growing concern due to various domestic, agricultural, and industrial activities. The use of plastic mulch and sludge application in agricultural farmland, textile production, daily consumer items, cleaning agents, and health/personal care products contribute significantly to the increasing microplastic pollution in the aquatic ecosystem. The concentration of microplastics reported in surface water ranged from 0.35 to 519,000 items m−3, with fibers and fragments being the most prevalent shapes. Notably, the high concentration of microplastics was observed in lakes, canals, and megacities such as Ha Noi and Ho Chi Minh City, which poses potential health risks to the local community via drinking-water supply and food chains. As an emerging pollutant, MPs are the transport vectors for contaminants in environmental matrices that act as a carrier of hazardous pollutants, release toxic compounds, and evenly aggregate/accumulate in biota. Recent studies have reported the presence of microplastics in various marine organisms, including fish and shellfish, highlighting the risk of ingestion of these particles by humans and wildlife. Thus, it is imperative to monitor microplastic contamination in the ecosystem to provide helpful information for the government and local communities. Efforts should be taken to reduce microplastic pollution at the source to minimize potential effects on ecological and health safety. This review paper emphasizes the urgent need for further research on microplastic pollution in Vietnam and highlights potential solutions to mitigate this emerging environmental threat. Keyworks: single-use plastics;microplastics;ecosystems;plastic waste;health risk;ecological and health safety;pollution mitigation. © 2023 Elsevier Ltd

关键词： Microplastic

来源：评论

学校读者我要写书评

暂无评论

Effective approaches to disaster evacuation during a COVID-like pandemic

arXiv

引用

arXiv 2022年

作者： Tsai, Yi-Lin Sitepu, Dymasius Y. Chappell, Karyn E. Mediratta, Rishi P. Wang, C. Jason Kitanidis, Peter K. Field, Christopher B. Department of Civil and Environmental Engineering Stanford University StanfordCA United States Department of Engineering Science National University of Singapore Singapore Department of Engineering Imperial College London London United Kingdom Department of Pediatrics Stanford University School of Medicine StanfordCA United States Department of Health Policy Stanford University School of Medicine StanfordCA United States Woods Institute for the Environment Stanford University StanfordCA United States Bio-X Stanford University StanfordCA United States Institute for Computational and Mathematical Engineering Stanford University StanfordCA United States Department of Biology Stanford University StanfordCA United States Department of Earth System Science Stanford University StanfordCA United States Interdisciplinary Environmental Studies Program Stanford University StanfordCA United States

Since COVID-19 vaccines became available, no studies have quantified how different disaster evacuation strategies can mitigate pandemic risks in shelters. Therefore, we applied an age-structured epidemiological model, known as the Susceptible-Exposed-Infectious-Recovered (SEIR) model, to investigate to what extent different vaccine uptake levels and the Diversion protocol implemented in Taiwan decrease infections and delay pandemic peak occurrences. Taiwan’s Diversion protocol involves diverting those in self-quarantine due to exposure, thus preventing them from mingling with the general public at a congregate shelter. The Diversion protocol, combined with sufficient vaccine uptake, can decrease the maximum number of infections and delay outbreaks relative to scenarios without such strategies. When the diversion of all exposed people is not possible, or vaccine uptake is insufficient, the Diversion protocol is still valuable. Furthermore, a group of evacuees that consists primarily of a young adult population tends to experience pandemic peak occurrences sooner and have up to 180% more infections than does a majority elderly group when the Diversion protocol is implemented. However, when the Diversion protocol is not enforced, the majority elderly group suffers from up to 20% more severe cases than the majority young adult group. Copyright © 2022, The Authors. All rights reserved.

关键词： COVID-19

来源：评论

学校读者我要写书评

暂无评论

Evaluating the impacts of environmental and human health of the critical minerals mining and processing industries in Indonesia using life cycle assessment

引用

Case Studies in Chemical and environmental engineering 2024年 10卷

作者： Wahyono, Yoyon Sasongko, Nugroho Adi Trench, Allan Anda, Martin Hadiyanto, Hadiyanto Aisyah, Nyayu Anisah, Anisah Ariyanto, Novy Kumalasari, Isnaeni Putri, Virny Zasyana Eka Lestari, Mutia Citrawati Panggabean, Lambas Parlaungan Ridlo, Rohmadi Sundari, Sundari Suryaningtyas, Anissa Dewi Novianti, Endah Dwi Hakim, Muhammad Raihan Farras Prihatin, Anggara Lomak Matin, Hashfi Hawali Abdul Research Center for Sustainable Production System and Life Cycle Assessment National Research and Innovation Agency - BRIN Prof. BJ. Habibie Complex Area Banten Tangerang Selatan 15314 Indonesia Energy Security Graduate Program Republic of Indonesia Defense University IPSC Sentul Area West Java 16810 Indonesia Centre for Exploration Targeting School of Earth Sciences The University of Western Australia 35 Stirling Highway Crawley 6009 WA Australia UWA Business School 35 Stirling Highway Crawley 6009 WA Australia Environmental Engineering Murdoch University Murdoch 6150 WA Australia Doctoral Program of Environmental Science School of Postgraduate Studies Diponegoro University Central Java Semarang 50241 Indonesia Department of Chemical Engineering Faculty of Engineering Diponegoro University Central Java Semarang 50275 Indonesia Department of Mechanical Engineering Vocational School Gadjah Mada University Sleman Yogyakarya 55281 Indonesia Study Program of Environmental Science Faculty of Mathematics and Natural Science Universitas Sebelas Maret Central Java Surakarta 57126 Indonesia

The critical minerals industries in Indonesia may pose possible environmental and human health risks due to the release of pollutants into soil, water, and air, as well as the use of materials and energy. This study investigates the possible environmental and human health impacts of Indonesia's nickel, gold, copper, tin, and bauxite mining and processing industries. This study utilizes the latest version of the OpenLCA software, version 2.0, in combination with the Ecoinvent 3.8 database. To evaluate potential environmental consequences and health effects on humans, CML-IA Baseline and environmental Priority Strategies (EPS) are employed in product development. The EPS system was developed utilizing a hierarchical methodology with the objective of furnishing the product developer with data regarding the financial impact of human health impairment resulting from a particular product development. The production of one tonne of gold, nickel, bauxite, tin, and copper results in the emission of 7.34.E+07, 4.61.E+04, 3.10.E+04, 1.02.E+04, 8.01.E+03 kg CO₂ eq/t, respectively, contributing to global warming. This production is associated with asthma cases of 7.79.E+01 (gold industry), 2.21.E−03 (copper industry), 1.81.E−03 (tin industry), 9.21.E−04 (nickel industry), and 4.71.E−06 (bauxite industry) Personyears/t. Electricity consumption and the release of carbon dioxide are the main factors contributing to global warming. The primary cause of asthma cases is the utilization of fuel oil and electricity. Power plant chimneys can employ various technologies, such as cyclones, bag filters, and scrubbers, to mitigate the release of polluting gas emissions. The critical mineral industry must prioritize handling and governing of steam power facilities to minimize their negative effects on the environment and human health. © 2024 The Authors

关键词： Critical minerals industries environmental impacts Human health impacts Life cycle assessment

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：