检索结果-内蒙古大学图书馆

SSRN 2024年

作者： Chen, Mingshuai Li, Maomao Zhang, Junlong You, Li Zeng, Xueting Li, Yongping Huang, Guohe College of Environmental Science and Engineering Qingdao University Shandong Qingdao266071 China Carbon Neutrality and Eco-Environmental Technology Innovation Center of Qingdao Shandong Qingdao266071 China College of Water Sciences Beijing Normal University Beijing100875 China State key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy Sciences Beijing100085 China School of Labor Economics Capital University of Economics and Business Beijing100070 China School of Environment Beijing Normal University Beijing100875 China Canada Research Environmental Systems Engineering Program Faculty of Engineering and Applied Science University of Regina ReginaSKS4S 0A2 Canada

This study developed a stochastic bi-level programming-based water saving and trading planning model (SB-WSTM) for a water-scarce watershed. The link between socio-economic and water resources, as well as participation of government water-saving subsidy and water-saving irrigation facilities (sprinkler irrigation, micro-irrigation, low-pressure pipe irrigation) are considered. The SB-WSTM is applied to a real case of Dagu River watershed in Qingdao and solved in 25 water-saving scenarios. Through the construction of water-saving project and policy in water trading management system, the impact of water-saving strategies on water resources system is revealed, and the optimal water-saving scheme is obtained based on multi-criterion analysis. The results reveal that expansion of water-saving irrigation area leads to an increase in water-saving quantity;water-saving users transfer surplus water rights to high-return users, allowing them to gain water-saving benefits. Water-saving subsidy can modify the supply and demand dynamics, influencing water trading processes. The results also indicate that a high-efficient water-saving irrigation area rate of 70% and a subsidy at 50% of water-saving cost constitute the optimal water-saving scheme and should be recommended. © 2024, The Authors. All rights reserved.

关键词： Watersheds

来源：评论

学校读者我要写书评

暂无评论

Seasonal Variability of Internal Solitary Waves Phase Speed in the Lombok Strait Revealed by Sentinel-1 SAR

Seasonal Variability of Internal Solitary Waves Phase Speed ...

引用

Asian and Pacific Conference on Synthetic Aperture Radar (APSAR)

作者： Chonnaniyah Abd Rahman As-Syakur Takahiro Osawa I Wayan Gede Astawa Karang Environmental Engineering Program Institute of Science and Technology Nahdlatul Ulama Bali (ISTNUBA) Bali Indonesia Department of Marine Sciences Faculty of Marine Science and Fisheries Udayana University Bali Indonesia Center for Research and Application of Satellite Remote Sensing (YUCARS) Yamaguchi University Tokiwadai Ube Japan

Sentinel-1 synthetic aperture radar (SAR) images have been effectively utilized to e stimate the phase speed of internal solitary waves (ISWs) in the Lombok Strait during different seasons within a year. It is assumed that ISW in the Lombok Strait generates from the interaction between the semidiurnal tides and the rough topography (sill) located in the southern region of the strait. This research employs Sentinel-1 data to calculate the phase speed of ISWs based on the detection of a single ISW packet within an image. Nevertheless, the conventional method for estimating ISW phase speed usually necessitates the detection of two packets within an image. This investigation aims to examine the capacity of SAR imagery to disclose ISW patterns and estimate the propagation phase speed within the Lombok Strait throughout different seasons. The analysis of four distinct Sentinel-1 images, each captured during different seasons, shows that the phase speed of ISWs in the Lombok Strait reaches its peak during the northwest monsoon. The differences in the phase speed of ISWs during different seasons are caused by variations in the depth of the thermocline and the presence of throughflow passing through the Lombok Strait. The results show that the ISW phase speed estimated from SAR images agrees with calculations based on the Korteweg-de Vries (KdV) equation.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Complement decay-accelerating factor inhibits inflammation-induced myopia development

引用

Molecular Immunology 2024年 171卷 47-55页

作者： Chou, Yung-Lan Hsu, Yu-An Lin, Chi-Fong Chen, Chih-Sheng Tien, Peng-Tai Wang, Yao-Chien Chang, Ching-Yao Lin, En-Shyh Chen, Jamie Jiin-Yi Wu, Ming-Yen Chuang, Chun-Yu Lin, Hui-Ju Wan, Lei Department of Biomedical Engineering and Environmental Sciences National Tsing Hua University Hsinchu Taiwan School of Chinese Medicine China Medical University Taichung Taiwan Department of Chemistry National Central University Taoyuan Taiwan Program for Health Science and industry China Medical University Taichung Taiwan Department of Food Nutrition and Health Biotechnology Asia University Taichung Taiwan Division of Chinese Medicine Asia University Hospital Taichung Taiwan School of Medicine China Medical University Taichung Taiwan Eye center China Medical University Hospital Taichung Taiwan Department of Emergency Medicine Taichung Tzu Chi Hospital Taichung Taiwan Department of Medical Laboratory Science and Biotechnology Asia University Taichung Taiwan Department of Beauty Science National Taichung University of Science and Technology Taichung Taiwan Department of Obstetrics and Gynecology China Medical University Hospital Taichung Taiwan

Myopia is regarded as a worldwide epidemic ocular disease, has been proved related to inflammation. CD55, also known as decay-accelerating factor (DAF) can modulate the activation of complement through inhibiting the formation of complement 3 convertase and its dysregulation is involved in various inflammatory diseases. To investigate the association between CD55 and myopia, and to test whether CD55 can inhibit myopia development by suppressing inflammation in the eye, we use three different animal models including monocular form-deprivation myopia, myopia induced by TNF-α administration and allergic conjunctivitis animal model to reveal the CD55 in myopia development. The tears of thirty-eight participants with different spherical equivalents were collected and CD55 in the tears were also analyzed. Complement 3 and complement 5 levels increased while CD55 levels decreased in allergic conjunctivitis and myopic eyes. After anti-inflammatory drugs administration, CD55 expression was increased in monocular form-deprivation myopia model. We also found inflammatory cytokines TGF-β, IL-6, TNF-α, and IL-1β may enhance complement 3 and complement 5 activation while CD55 level was suppressed contrary. Moreover, lower CD55 levels were found in the tears of patients with myopia with decreased diopter values. Finally, CD55-Fc administration on the eyelids can inhibit the elongation of axial length and change of refractive error. CD55-Fc application also suppress myopia development subsequent to complement 3 and complement 5 reduction and can lower myopia-specific (MMP-2 and TGF-β) cytokine expression in TNF-α induced myopia animal model. This suggests that CD55 can inhibit myopia development by suppression of complement activation and eventual down-regulation of inflammation. © 2024 Elsevier Ltd

关键词： CD55 Complementary system decay-accelerating factor (DAF) Inflammation Myopia Retina

来源：评论

学校读者我要写书评

暂无评论

Trace element removal from wastewater by agricultural biowastes: A data analysis on removal efficacy and optimized conditions

引用

science of the Total Environment 2025年 975卷 179235页

作者： Shahid, Muhammad Khalid, Sana ALOthman, Zeid A. Al-Kahtani, Abdullah A. Bibi, Irshad Naz, Rabia Natasha, Natasha Niazi, Nabeel Khan Iqbal, Jibran Han, Changseok Shah, Noor S. Murtaza, Behzad Department of Environmental Sciences COMSATS University Islamabad Vehari Campus Vehari61100 Pakistan Department of Chemistry College of Science King Saud University Riyadh11451 Saudi Arabia School of Geography Earth and Atmospheric Sciences University of Melbourne MelbourneVIC3053 Australia Department of Biosciences COMSATS University Islamabad Islamabad Campus Islamabad44000 Pakistan Institute of Soil and Environmental Sciences University of Agriculture Faisalabad Faisalabad38040 Pakistan Department of Environmental Sciences and Sustainability College of Natural and Health Sciences Zayed University Abu Dhabi144534 United Arab Emirates Department of Environmental Engineering INHA University Incheon22212 Korea Republic of Program in Environmental & Polymer Engineering INHA University Incheon22212 Korea Republic of Department of Chemistry COMSATS University Islamabad Abbottabad Campus Abbottabad22060 Pakistan

Valorization of agricultural biowastes to biosorbents provides an excellent opportunity to recycle these wastes into valuable products and filtration of contaminants, especially potentially toxic trace elements in aquatic ecosystems. Water contamination with potentially toxic trace elements is a widespread global issue. Various agricultural biosorbents have been tested to remove trace elements from wastewater. Despite abundant research, there are scarce studies regarding the critical data analysis on trace elements removal efficiency by agricultural biowastes under various conditions. This review critically delineates the data analysis of recent literature published from 2018 to 2024 for a critical comparison of different agricultural biosorbents and the applied conditions to remove trace elements from aqueous media. Data analysis (based on 1188 observations) revealed that the mean trace element removal by agricultural biowaste-derived biosorbents from contaminated water was 75 %, ranging from 2 to 100 %. The most frequently reported removal efficiencies of agricultural biosorbents were 90–100 %. Notably, few agricultural biosorbents such as banana peel demonstrated the highest removal efficiency of 97 %, followed by cassava peels at 92 %, emphasizing the significance of recycling these materials for sustainable trace element removal from wastewater. Data analysis revealed that the trend for trace element removal from wastewater follows a descending order, with zinc exhibiting the highest removal rate at 81 %, followed closely by lead at 80 %. This trend continues with arsenic at 75 %, nickel and cadmium both at 70 %, and so forth. Thus, agricultural biosorbents play a pivotal role in this process, showcasing their potential in waste valorization and environmental remediation. Hence, the present review article is expected to contribute towards the comparative efficiency of various agricultural biosorbents, and the selection of the best biosorbents, depending on appl

关键词： Biowaste Metal removal and recovery Reusing and recycling Sustainable technology

来源：评论

学校读者我要写书评

暂无评论

Evidence for autotrophic growth of purple sulfur bacteria using pyrite as electron and sulfur source (vol 90, e00863, 2024)

引用

APPLIED AND environmental MICROBIOLOGY 2024年第9期90卷 e00863-24-e00863-24页

作者： Alarcon, Hugo V. Mohl, Jonathon E. Chong, Grace W. Betancourt, Ana Wang, Yi Leng, Weinan White, Jason C. Xu, Jie Environmental Science and Engineering Program the University of Texas at El Paso El Paso Texas USA Department of Mathematical Sciences the University of Texas at El Paso El Paso Texas USA Border Biomedical Research Center the University of Texas at El Paso El Paso Texas USA Department of Earth Environmental and Resource Sciences the University of Texas at El Paso El Paso Texas USA The Connecticut Agricultural Experiment Station New Haven Connecticut USA The National Center for Earth and Environmental Nanotechnology Infrastructure Blacksburg Virginia USA School of Molecular Sciences Arizona State University Tempe Arizona USA

Purple sulfur bacteria (PSB) are capable of anoxygenic photosynthesis via oxidizing reduced sulfur compounds and are considered key drivers of the sulfur cycle in a range of anoxic environments. In this study, we show that Allochromatium vinosum (a PSB species) is capable of autotrophic growth using pyrite as the electron and sulfur source. Comparative growth profile, substrate characterization, and transcriptomic sequencing data provided valuable insight into the molecular mechanisms underlying the bacterial utilization of pyrite and autotrophic growth. Specifically, the pyrite-supported cell cultures (“py”’) demonstrated robust but much slower growth rates and distinct patterns from their sodium sulfide-amended positive controls. Up to ~200-fold upregulation of genes encoding various c- and b-type cytochromes was observed in “py,” pointing to the high relevance of these molecules in scavenging and relaying electrons from pyrite to cytoplasmic metabolisms. Conversely, extensive downregulation of genes related to LH and RC complex components indicates that the electron source may have direct control over the bacterial cells’ photosynthetic activity. In terms of sulfur metabolism, genes encoding periplasmic or membrane-bound proteins (e.g., FccAB and SoxYZ) were largely upregulated, whereas those encoding cytoplasmic proteins (e.g., Dsr and Apr groups) are extensively suppressed. Other notable differentially expressed genes are related to flagella/fimbriae/pilin(+), metal efflux(+), ferrienterochelin(−), and [NiFe] hydrogenases(+). Characterization of the biologically reacted pyrite indicates the presence of polymeric sulfur. These results have, for the first time, put the interplay of PSB and transition metal sulfide chemistry under the spotlight, with the potential to advance multiple fields, including metal and sulfur biogeochemistry, bacterial extracellular electron transfer, and artificial photosynthesis.

关键词： purple sulfur bacteria pyrite anoxygenic photosynthesis transcriptomic sequencing cytochrome iron sulfur cluster Allochromatium vinosum

来源：评论

学校读者我要写书评

暂无评论

Convergence of Mass Transfer Particle Tracking Schemes for the Simulation of Advection-Diffusion-Reaction Equations

SSRN

引用

SSRN 2024年

作者： Pankavich, Stephen D. Schauer, Lucas Schmidt, Michael J. Engdahl, Nicholas B. Bolster, Diogo Benson, David A. Department of Applied Mathematics and Statistics Colorado School of Mines GoldenCO80401 United States Center for Computing Research Sandia National Laboratories AlbuquerqueNM87185 United States Department of Civil and Environmental Engineering Washington State University PullmanWA99164 United States Department of Civil and Environmental Engineering and Earth Sciences University of Notre Dame Notre DameIN46556 United States Hydrologic Science and Engineering Program Department of Geology and Geological Engineering Colorado School of Mines GoldenCO80401 United States

Since their introduction, multi-species mass-transfer particle tracking (or MTPT) algorithms have been used to accurately simulate advective and dispersive transport of solutes, even within systems that feature nonlinear chemical reactions. The MTPT methods were originally derived from a probabilistic or first-principles perspective and have previously lacked a more rigorous derivation arising directly from the underlying advection-diffusion-reaction equation (ADRE). Herein, we provide a fully rigorous derivation of the MTPT method as a Lagrangian approximation of solutions to the ADRE, complete with a description of the error and order of accuracy generated by this approximation. Numerical simulations further detail the fidelity of MTPT methods and display parameter regimes wherein the numerical error is independent of the chosen time step, and thereby dependent only upon the numerical discretization of the spatial domain via the number of particles within a simulation. Finally, different normalizations of the local Green's function are shown to generate similar approximations of the underlying solution for stationary particles. © 2024, The Authors. All rights reserved.

关键词： Lagrange multipliers

来源：评论

学校读者我要写书评

暂无评论

Revisiting the Scale Design of Electrical Confinement Interfaces in Water Purification Applications

引用

environmental science & technology 2025年第23期59卷 2025 Jun 3页

作者： Min Chen Guihua Yu Jiuhui Qu Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 P. R. China. Materials Science and Engineering Program and Walker Department of Mechanical Engineering The University of Texas at Austin Austin Texas 78712 United States. Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 P. R. China.

来源：评论

学校读者我要写书评

暂无评论

Article hydrologic analysis of an intensively irrigated area in southern peru using a crop-field scale framework

引用

Water (Switzerland) 2021年第3期13卷 1-27页

作者： Wei, Xiaolu Garcia-Chevesich, Pablo Alejo, Francisco García, Vilma Martínez, Gisella Daneshvar, Fariborz Bowling, Laura C. Gonzáles, Edgard Krahenbuhl, Richard McCray, John E. Department of Civil and Environmental Engineering Colorado School of Mines GoldenCO80401 United States Hydrologic Science and Engineering Program Colorado School of Mines GoldenCO80401 United States Intergovernmental Hydrological Programme UNESCO Montevideo11200 Uruguay Centro de Minería Sostenible Universidad Nacional de San Agustín de Arequipa 117 Arequipa Peru Arequipa Nexus Institute Purdue University West LafayetteIN47907 United States Department of Geophysics Colorado School of Mines GoldenCO80401 United States Humanitarian Engineering and Science Program Colorado School of Mines GoldenCO80401 United States

Majes is one of the largest agricultural areas in the Arequipa region (southern Peru). Low seasonal precipitation and increasing water demands for agricultural irrigation, industry, and human consumption have made water supply projections a major concern. Agricultural development is becoming more extensive in this dry, sunny climate where crops can be grown year-round. However, because this type of project usually involves significant perturbations to the regional water cycle, understanding the effects of irrigation on local hydrology is crucial. Based on the watershed-scale Soil and Water Assessment Tool (SWAT), this investigation focuses on the impacts of intensive irrigation on hydrological responses in the Majes region. This study is unique because we allow for crop-field scale input within our regional-scale model to provide information at this smaller scale, which is important to inform local stakeholders and decision makers. Each hydrologic response unit (HRU) was generated to represent an individual crop field, so that management practices could be applied according to real-world scenarios. The management file of each HRU was modified to include different operation schedules for crop rotation, irrigation, harvest, and tillage. The model was calibrated and validated against monthly observed stream discharge during the 2009–2020 period. Additionally, evapotranspiration, irrigation water volume, and daily stream discharge downstream of the local river (Siguas) were used to verify the model performance. A total of 49 sub-basins and 4222 HRUs were created, with 3000 HRUs designated to represent individual crop fields. The simulation results revealed that infiltration from agricultural activities in Majes represents the majority of annual groundwater return flow, which makes a substantial contribution to streamflow downstream of the Siguas River. Simulations also suggested that groundwater flow processes and the interactions between surface and groundwater have a

关键词： Groundwater

来源：评论

学校读者我要写书评

暂无评论

A critical review of the interactions between rhizosphere and biochar during the remediation of metal(loid)contaminated soils

引用

Biochar 2023年第1期5卷 1481-1513页

作者： Chuanfang Fan Yanshan Cui Qianru Zhang Naiyi Yin Xiaolin Cai Xiangzhou Yuan Sachini Senadheera Yoora Cho Yong Sik Ok College of Resources and Environment University of Chinese Academy of SciencesBeijing 101408China Research Center for Eco-Environment Sciences Chinese Academy of SciencesBeijing 100085China Korea Biochar Research Center APRU Sustainable Waste Management Program&Division of Environmental Science and Ecological EngineeringKorea UniversitySeoul 02841Republic of Korea State Key Laboratory of Efficient Utilization of Arid and Semi-Arid Arable Land in Northern China Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 210096China

Biochar has a large specific surface area,well-developed pore structure,abundant surface functional groups,and superior nutrient supply capacity,which is widely available and environmentally friendly with its advantages in waste resource utilization,heavy metal(loid)remediation,and carbon *** review focuses on the interactions between biochar(including raw biochar,functional biochar(modified/engineered/designer biochar),and composite biochar)and rhizosphere during the remediation of soil contaminated with heavy metal(loid)s(Pb,As,Cd,Hg,Co,Cu,Ni,Zn,Cr,etc.)and the effects of these interactions on the microbial communities and root exudates(enzymes and low-molecular-weight organic acids(LMWOAs)).In terms of microorganisms,biochar affects the composition,diversity,and structure of microbial communities through the supply of nutrients,provision of microbial colonization sites,immobilization of heavy metal(loid)s,and introduction of exogenous *** regard to root exudates,biochar provides electron transfer support between the microorganisms and exudates,regulates the secretion of enzymes to resist the oxidative stress stimulated by heavy metal(loid)s,ameliorates rhizosphere acidification caused by LMWOAs,and promotes the activity of soil *** roles and mechanisms of biochar on rhizosphere soils are discussed,as well as the challenges of biochar in the remediation of heavy metal(loid)-contaminated soils,and the issues that need to be addressed in future research are foreseen.

关键词： Green and sustainable remediation Sustainability Biochar Soil Root Heavy metal(loid)s

来源：评论

学校读者我要写书评

暂无评论

Nutrient Removal from Activated Sludge Process Effluent (Asp-E) Using Hybrid Anion Exchanger Impregnated with Hydrated Fe (Iii) Nanoparticle (Ha520e-Fe)

SSRN

引用

SSRN 2024年

作者： Pranudta, Antika Patra, Santanu Nguyen, Trung Thanh El-Moselhy, Medhat Mohamed Wantana, Klysubun Chanlek, Narong Amonpattaratkit, Penphitcha Padungthon, Surapol Environmental Engineering Program Khon Kaen University Khon Kaen Thailand Synchrotron Light Research Institute Nakhon Ratchasima Thailand Khon Kaen University Khon Kaen Thailand Faculty of Technology Engineering and Environment An Giang University Long Xuyen City Viet Nam Department of Chemistry Faculty of Science Jazan University Jazan Saudi Arabia

In this study, a circular economy approach has been proposed for the simultaneous removal of important nutrients such as nitrate & phosphate from activated sludge process effluent (ASP-E), and for their further possible utilization as sustainable fertilizer. Hydrated Fe(III) oxide (HFO) nanoparticles impregnated within polymeric anion exchanger containing triethylamine functional group (HA520E-Fe) was synthesized using an innovative pilot-scale synthesis system and applied for phosphate and nitrate removal from ASP-E. High nitrate and phosphate recovery (> 90%) was achieved in either a separate or mixed stream using 10 bed volumes (BVs) of 10% KCl and 5% KOH solution. μXRF, EXAFS, and XPS techniques were applied to understand the inherent adsorptive mechanism. The effect of competing ions and natural organic matter (NOM) was also studied by equilibrium batch test method. From the breakthrough curve of the fixed-bed column studies, near-zero concentrations of nitrate and phosphate were obtained at approximately 250 and 475 bed volumes (BV), respectively, with an initial nitrate and phosphate concentration of 105 mg NO3--N/L and 3.25 mg PO43-P/L, *** results suggest that this novel hybrid material can be effectively and economically used for the co-removal of nutrients (nitrate and phosphate) from the effluent of an activated sludge process and has a high potential for recovery as a slow-released fertilizer (i.e., struvite) without any concern of environmental contamination. © 2024, The Authors. All rights reserved.

关键词： Synthesis (chemical)

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：