检索结果-内蒙古大学图书馆

Thank You to Our 2023 Reviewers

Water Resources Research 2024年第5期60卷

作者： Destouni, Georgia Bierkens, Marc Castelletti, Andrea Fatichi, Simone Islam, Shafiqul Jha, Madan Kumar Kollet, Stefan Miao, Chiyuan Moradkhani, Hamid Sanchez-Vila, Xavier Sawyer, Audrey Singha, Kamini Stahl, Kerstin Troch, Peter Wohl, Ellen Department of Physical Geography Stockholm University Stockholm Sweden of Hydrology at Utrecht University Utrecht Netherlands Department of Electronics Information and Bioengineering Politecnico di Milano Milano Italy Department of Civil and Environmental Engineering National University of Singapore Singapore Singapore Fletcher School of Law and Diplomacy Tufts University MedfordMA United States Kharagpur Kharagpur India Jülich Germany Beijing Normal University Beijing China Department of Civil Construction and Environmental Engineering The University of Alabama TuscaloosaAL United States Universitat Politecnica de Catalunya Barcelona Spain The Ohio State Universitylk ColumbusOH United States Colorado School of Mines Hydrologic Science and Engineering Program GoldenCO United States Albert-Ludwigs-University of Freiburg Environmental Hydrological Systems Freiburg Germany University of Arizona Hydrology and Atmospheric Sciences TucsonAZ United States Department of Geosciences Colorado State University Fort CollinsCO United States

来源：评论

学校读者我要写书评

暂无评论

Landscape Design for Improved Thermal Environment: An Optimized Tree Arrangement Design for Climate-Responsive Outdoor Spaces in Residential Buildings

SSRN

引用

SSRN 2023年

作者： Kim, Ji Yeon Park, Chae Yeon Hyun, Jung Hee Kim, Sang Hyuck Yun, Seok Hwan Lee, Dong Kun Interdisciplinary Program in Landscape Architecture Seoul National University Seoul Korea Republic of Integrated Major in Smart City Global Convergence Program Seoul National University Seoul Korea Republic of Specialized Graduate School of Intelligent Eco-Science Seoul National University Seoul Korea Republic of Smart Green Solution team SK forest Seoul Korea Republic of National Institute for Environmental Studies 16-2 Onogawa Ibaraki Tsukuba305-8506 Japan Systemic Risk and Resilience Research Group Advancing Systems Analysis International Institute for Applied Systems Analysis Austria Department of Landscape Architecture and Rural System Engineering Seoul National University Seoul Korea Republic of

The heat reduction effect of trees has been investigated through numerical simulations;however, there are still challenges to applying the scientific results to the planning process due to the model's complexity and the computational resources required. This study investigates a rapid spatial evaluation method for heat stress potential, measured by mean radiant temperature (MRT), by decomposing radiation into sub-radiation using a multilayer MRT model. This method also enables the reproduction of optimized layouts considering the effect of tree arrangement in residential buildings. Multi-objectives were achieved through an evolutionary algorithm, resulting in more effective design layouts combining tree types and arrangements, all within a standard budget. By adopting this study's approach, landscape designers can create climate-responsive tree layouts with reduced heat exposure and generate customized planting designs tailored to their preferences. © 2023, The Authors. All rights reserved.

关键词： Decision making

来源：评论

学校读者我要写书评

暂无评论

Enhancing Sustainable Development Goals Through Future Vapor Pressure Deficit Analysis In The Nile River Basin

Enhancing Sustainable Development Goals Through Future Vapor...

引用

IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Surendra Maharjan Wenzhao Li Shahryar Fazli Hani Sewilam Hesham El-Askary Computational and Data Sciences Graduate Program Schmid College of Science and Technology Chapman University Orange CA USA Earth Systems Science and Data Solutions Lab Chapman University Orange CA USA The Center for Applied Research on the Environment and Sustainability The American University in Cairo Cairo Egypt Department of Engineering Hydrology RWTH Aachen University Aachen Germany Department of Environmental Sciences Faculty of Science Alexandria University Alexandria Egypt

ISBN: (数字)9798350360325

ISBN: (纸本)9798350360332

Vapor Pressure Deficit (VPD) is crucial in meteorology and agriculture for understanding plant-environment interactions. Its application as an indicator in agricultural practices notably advances Sustainable Development Goals such as Zero Hunger (SDG 2) and Climate Action (SDG 13). This research focuses on the impact of climate change on agricultural productivity and food security in the Nile River Basin (NRB), emphasizing the role of VPD, temperature, and precipitation. Utilizing Coupled Model Intercomparison Project Phase 6 (CMIP6) datasets from NEX-GDDP-CMIP6, the study analyzes key climatic variables that influence agricultural conditions. The study applies the Mann-Kendall test to evaluate VPD trends from 2000 to 2060 under two Shared Socioeconomic Pathways (SSPs), SSP2-4.5 and SSP5-8.5. The study's findings on the implications of rising VPD levels in the Nile River Basin (NRB), particularly under the SSP 5-8.5 scenario, highlight a critical challenge for the region's agricultural productivity and food security. The increased VPD, indicative of drier conditions, leads to a moisture deficit for crops, potentially reducing agricultural yields. This scenario poses a significant threat to food security, as lower crop yields can result in food shortages and higher food prices, adversely affecting vulnerable populations. The study underscores the necessity of integrating VPD insights into agricultural and water resource management strategies to uphold food security against climatic variations in support of the SDGs.

关键词： Productivity Climate change Precipitation Food security Agriculture Rivers Sustainable development

来源：评论

学校读者我要写书评

暂无评论

Blackwater and Graywater on US navy ships: Technical challenges and solutions

引用

NAVAL ENGINEERS JOURNAL 1999年第3期111卷 293-306页

作者： Benson, J Caplan, I Jacobs, R John Benson:received his BS degree in Mechanical Engineering and MS degree in Environmental Engineering from the University of Maryland. He is a registered Professional Engineer in the State of Maryland. He Joined the Naval Sufrace Warfare Center Carderock Division Environmental Quality Department in 1990 as a project engineer and is now managing the non-oily wastewater (graywater and blackwater) project area. Mr. Ivan Caplan:graduated from Drexel University (Philadelphia Pennsylvania) with a BS in Metallurgical Engineering and was awarded a MS degree from the Johns Hopkins University (Baltimore Maryland) in Mechanics and Materials Science. Mr. Caplan has spent most of his career at the Carderock Division Naval Surface Warfare Center (NSWC) and is currently the Head of the Wastewater Management Branch in the Carderock Division's Environmental Quality Department. Previously Mr. Caplan managed the US Navy's Applied Research Program in Ship & Submarine Materials Technology. In addition Mr. Caplan was manager of the US Navy's Titanium Technology Program Office and during his government career held several external Program Manager positions on at the Naval Sea Systems Command and another at the Air Force Office of Scientific Research. Rachel Jacobs:received BS degrees in Chemical Engineering and Marine Biology from the University of Maryland College Park. After working for the Naval Research Laboratory in Washington DC and the Center for Marine Biotechnology in Baltimore MD she joined the staff of the Naval Surface Warfare Center's Environmental Quality Department in 1997. Since thta time Ms. Jacobs has worked in the non-oily wastewater treatment area and her principal responsibility has been to technically supervise the evaluation operation and modification graywater treatment.

In anticipation of more stringent environmental regulations, the increasing costs of waste disposal, and the need for naval combatants to operate unimpeded in littoral waters, the U.S. Navy has identified the need to develop technologies which are appropriate for the control and treatment of blackwater and graywater. This paper will describe the status of development efforts by the Carderock Division, Naval Surface Warfare Center (CDNSWC) and its supporting contractors, under sponsorship of Naval Sea systems Command (NAVSEA) and the Office of Naval Research. The challenge was to develop treatment systems that meet Navy shipboard requirements for affordability, compactness, low manning/maintenance, high reliability and safety, and EM, noise, vibration and shock. Membrane ultrafiltration based systems, incorporating aerobic biological pre-treatment and ultraviolet light post treatment disinfection, have ken developed to meet these requirements. Both external and in-tank membrane systems will be described in terms of performance, system operation and space and weight advantages.

关键词： Naval vessels

来源：评论

学校读者我要写书评

暂无评论

Dilute Acid Pretreatment of Oil Palm Trunk Biomass at High Temperature for Enzymatic Hydrolysis

引用

Energy Procedia 2015年 79卷 924-929页

作者： Pongsak Noparat Poonsuk Prasertsan Sompong O-Thong Xuejun Pan Program in Environmental Science Faculty of Science and Technology Suratthani Rajabhat University Surat Thani 84100 Thailand Department of Industrial Biotechnology Faculty of Agro-Industry Prince of Songkla University Songkhla 90112 Thailand Palm Oil Products and Technology Research Center (POPTEC) Faculty of Agro-Industry Prince of Songkla University Songkhla 90112 Thailand Department of Biology Faculty of Science Thaksin University Phatthalung 93110 Thailand Biological Systems Engineering University of Wisconsin-Madison 460 Henry Mall Madison WI 53706 United States

Old oil palm trunk (OPT) is available in large quantity in Southeast Asia and a potential lignocellulosic biomass resource for bioethanol production. Dilute acid (DA) pretreatment was applied to the old oil palm trunk for enzymatic saccharification. The pretreatment conditions were investigated through a fractional factorial experiment design. The pretreated substrates were analyzed for chemical composition, and their enzymatic digestibility was investigated and compared. The results indicated that the DA pretreatment was able to improve enzymatic hydrolysis by removing hemicelluloses from OPT. Mild pretreatment preserved more hemicellulose and cellulose in pretreated OPT, but severe pretreatment was necessary to achieve satisfactory enzymatic hydrolysis of OPT. For example, the DA pretreatment with 3% H 2 SO 4 at 180 °C for 40 min could achieve an 80% enzymatic hydrolysis.

关键词： oil palm trunk enzymatic hydrolysis dilute acid pretreatment cellulosic ethanol

来源：评论

学校读者我要写书评

暂无评论

CONTROL OF SHIPBOARD WASTES

引用

NAVAL ENGINEERS JOURNAL 1971年第3期83卷 118-&页

作者： KINNEY, ET CONSTANT, A Edward T. Kinney a native of Grand Rapids Michigan earned his Bachelor of Science degree with honors in Civil Engineering from Michigan State University in 1952. He began his career with the Bureau of Ships as a Naval Architect in the Hull Design Training Program in September 1952. Kinney has served as a Project Coordinator in the Machinery Systems Division and is currently Head of the Environmental Pollution Control Branch at the Naval Ship Engineering Center. He is a member of several committees including the Department of Defense Environmental Pollution Control Committee and the Interagency Committee on Vessel Pollution Standards. Alexander Constant graduated from Pennsylvania Military College in June 1960 with a B.S. in Civil Engineering. After two years with the U.S. Forest Services working as a Civil Sanitary Engineer designing recreational facilities Constant joined the Vermont Water Resources Department as a Project Engineer. For the past five years he has been associated with the Naval Ship Engineering Center Piping System Branch responsible for design and development of systems and equipment to abate and control shipboard generated waste. He is presently Acting Head of the Sewage and Waste Water Section of the Environmental Pollution Control Branch NavSec.

The Navy, as well as other Federal Agencies and the private sector, has a clear mandate to stop polluting the environment, Various sources of environmental pollution caused by the operation of naval ships are discussed and characterized by the following general categories: Sewage; Oil; Industrial; Combustion Products; and Other Mission Related Wastes. Existing procedures for controlling these pollutants and advanced concepts for more complete control are discussed. Currently a very small percentage of ships are equipped to control environmental pollution. Complete control of ship wastes will be very costly and technically challenging. The first steps to effect control have been taken but greater strides are required.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The effect of fuel aromatic content on combustion in a UAV diesel engine 53rd

The effect of fuel aromatic content on combustion in a UAV d...

引用

53rd AIAA/SAE/ASEE Joint Propulsion Conference, 2017

作者： Szedlmayer, Michael T. Kim, Kenneth S. Kweon, Chol-Bum M. Kruger, Kurt M. Gibson, Joseph A. Lindsey, Christopher A. Meininger, Rik D. Musser, Marshall R. Giddings, Andrew V. U.S. Army Research Laboratory Propulsion Div. ARL VTD Bldg 4603 APG Aberdeen Proving GroundMD21005 United States Environmental Research Group Small and Certified Engines Team Propulsion Division RDECOM AMRDEC Aberdeen Proving Ground MD21005 United States U.S. Army Aviation and Missile Research Development and Engineering Center Redstone ArsenalAL35898 United States Science Applications International Corp. Unmanned Aircraft Systems Division RDECOM AMRDEC Redstone ArsenalAL35898 United States Sigmatech Inc. Program Management Redstone ArsenalAL35898 United States Westar Aerospace and Defense Group Inc. Redstone ArsenalAL35898 United States Small and Certified Engines Team Propulsion Division RDECOM AMRDEC United States Unmanned Aircraft Systems Division RDECOM AMRDEC United States

ISBN: (纸本)9781624105111

This study quantifies the impact of variations in the aromatic content of F-24 fuel on the combustion and performance of a turbocharged, direct-injection aviation diesel engine. The engine used in the study was a multi-cylinder, 4-stroke diesel engine, intended for use in unmanned aerial vehicles (UAV). Four fuel blends meeting the MIL-DTL-83133J standards for F-24 were specially prepared for the study. The cetane number, heating value, and other fuel properties were maintained within a very narrow range, while only the aromatic content was varied, from 4 to 24%, by volume. Using each fuel, the engine was operated at a series of standard sea level operating conditions from idle to full power takeoff. The engine was controlled using the manufacturer's original engine control unit, fuel map, and calibration. Combustion and performance properties of the engine were measured and analyzed using each fuel, at each engine operating condition. In switching between the four fuels, the impact on combustion properties was found to be small, but non-negligible. However, there was no apparent trend resulting from increasing the aromatic content. Engine performance properties such as power, torque, and fuel consumption were found to be largely unaffected by changing the aromatic content.

关键词： Diesel engines

来源：评论

学校读者我要写书评

暂无评论

Bulk passivation of perovskite films utilizing halide anion ionic liquids

引用

International Journal of Thermofluids 2023年 20卷

作者： Alashkar, Adnan Ayoub, Mohamad Ibrahim, Taleb Khamis, Mustafa Nancarrow, Paul Alami, Abdul Hai Tabet, Nouar PhD Program in Materials Science and Engineering American University of Sharjah Sharjah 26666 United Arab Emirates Sustainable and Renewable Energy Engineering Department University of Sharjah Sharjah 27272 United Arab Emirates Sustainable Energy & Power Systems Research Centre RISE University of Sharjah Sharjah 27272 United Arab Emirates Department of Chemical Engineering American University of Sharjah Sharjah 26666 United Arab Emirates Department of Biology Chemistry and Environmental Sciences College of Arts and Sciences American University of Sharjah Sharjah 26666 United Arab Emirates Center for Advanced Materials Research Research Institute of Science and Engineering University of Sharjah Sharjah 27272 United Arab Emirates Department of Applied Physics and Astronomy University of Sharjah Sharjah 27272 United Arab Emirates

Chemical additives to perovskite precursors constitute a predominant route to passivate defects in perovskite films and improve carrier charge dynamics. In this work, ionic liquids (ILs) with chloride and iodide anions are used as additives for bulk passivation of perovskite films. The ionic liquids in the form of 1‑butyl‑4-methylpyradinium iodide (IL-I) and 1-ethylimidazolium chloride (IL-Cl) are mixed individually with a precursor of Cesium Formamidinium Lead Triiodide and Methylammonium Chloride (CsFAPbI3−MACl). The decay of charge carriers within the perovskite film before and after passivation with ILs was measured by Time Resolved Photoluminescence Spectroscopy (TRPL). The effect of added ILs on the recombination rate of the photocarriers was investigated by analyzing the decay of the TRPL signal in all samples. The average lifetimes obtained within one day of preparations were 79 ns, 73 ns and 275 ns for pristine perovskite, IL-I passivated perovskite and IL-Cl passivated perovskite films, respectively. These values show that the presence of the IL with chloride anion greatly improves the average lifetime of the charge carrier by around 250%, while IL with iodide anion decreased the lifetime by 32% as compared with the pristine perovskite sample. This finding renders the IL-Cl passivated perovskite films as a valuable resource in applications ranging from photoelectric to hydrogen generation devices. © 2023

关键词： Ionic liquids

来源：评论

学校读者我要写书评

暂无评论

Leveraging remotely-sensed vegetation indices to evaluate crop coefficients and actual irrigation requirements in the water-stressed Maipo River Basin of Central Chile

引用

Sustainable Horizons 2022年 4卷

作者： Goffin, Benjamin D. Thakur, Rishudh Da Conceição Carlos, Sarah Srsic, Duncan Williams, Caroline Ross, Kenton Neira-Román, Fernando Cortés-Monroy, Carlos Calvo Lakshmi, Venkataraman NASA DEVELOP National Program HamptonVA23666 United States Department of Engineering Systems and Environment University of Virginia CharlottesvilleVA22904 United States Department of Civil and Environmental Engineering Stanford University StanfordCA94305 United States Division of Mathematics Science and Health Luther College DecorahIA52101 United States Department of Geography The Ohio State University ColumbusOH43210 United States NASA Langley Research Center HamptonVA23666 United States Centro de Información de Recursos Naturales Región Metropolitana Providencia Chile

Assessment of irrigation needs for agricultural production has commonly relied on reference crop coefficients derived using limited climatic conditions. This work focused on evaluating actual crop coefficients (Kc) by leveraging available satellite data from Landsat 8 Operational Land Imager (OLI) and Terra Moderate Resolution Imaging Spectroradiometer (MODIS). This method built on the linear relationship and variability between reference Kc from the Food and Agricultural Organization (FAO) and specific site response in Normalized Difference Vegetation Index (NDVI). A regional model was developed for the water-stressed Maipo River Basin of Central Chile during the growing seasons of maize from 2018 to 2022. Throughout model validation, NDVI-based Kc predictions of high quality were found with R-squared scores ranging from 0.77 to 0.97. Relying on Earth observations, this approach provided site-specific Kc values and estimates of actual evapotranspiration without requiring site instruments and/or particular knowledge of farming schedules. Overall, this study has the potential to assist individuals and organizations around the world in improving irrigation management approaches, and advance precision agriculture in the context of water scarcity. © 2022 The Authors

关键词： Landsat

来源：评论

学校读者我要写书评

暂无评论

Wildfire Risk Mitigation through systems Analysis of the Planetary Emergency

ASCE Open: Multidisciplinary Journal of Civil Engineering

引用

ASCE Open: Multidisciplinary Journal of Civil engineering 2024年第1期2卷

作者： Lambert, James H. Dorn, R. Ranger Ayyub, Bilal M. Barletta, William A. Organek, John F. Piras, Marco Gunn, Megan E. Zichichi, S. Fabrizio Center for Risk Management of Engineering Systems Dept. of Systems and Information Engineering Univ. of Virginia CharlottesvilleVA22904 United States Electric Infrastructure Security Council Oak ViewCA93022 United States Center for Technology and Systems Management Dept. of Civil and Environmental Engineering Univ. of Maryland College ParkMD20742 United States Dept. of Commerce Applied Economics Office National Institute of Standards and Technology GaithersburgMD20899 United States International Joint Research Center for Resilient Infrastructure Tongji Univ. Shanghai China Dept. of Physics Massachusetts Institute of Technology CambridgeMA02139 United States Program Planning & Operational Architecture Electric Infrastructure Security Council WashingtonDC20002 United States Dept. of Environment Land and Infrastructure Engineering Politecnico di Torino Turin10129 Italy Dept. of Systems and Information Engineering Univ. of Virginia CharlottesvilleVA22904 United States Ettore Majorana Foundation Centre for Scientific Culture Sicily91016 Italy

Recognizing wildfires as a multiscale planetary emergency, this paper describes a systems analysis of technology countermeasures, with special attention to Sicily, California, and several other regions. The paper describes a framework for systems integration of firefighting, satellites, fixed imaging, and aerial vehicles, with mathematical simulation and machine learning, to support both policy mitigations and responses to incidents. The approach includes (1) the characterization of the planetary emergency of wildfires, (2) early identification of dangerous wildfires and means for their control, and (3) reduction of risks to population centers in both rural and urban areas. Societal metrics of success include human health and safety, environment and ecology, critical food and industrial supply chains, geopolitical security, and others. Several technology and policy countermeasures of particular interest are regional fuel management, distributed sensors, computational intelligence, advanced firefighting materials, protocols, and automatic and semiautonomous responses, benefiting from the latest advancements in information technologies including artificial intelligence, machine learning, and others. © 2024 This work is made available under the terms of the Creative Commons Attribution 4.0 International license.

关键词： Risk 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：