检索结果-内蒙古大学图书馆

SSRN 2023年

作者： Wang, Wei Luo, Zhen Liu, Xia Dai, Yanhui Hu, Guoqing Zhao, Jian Yue, Tongtao Institute of Coastal Environmental Pollution Control Key Laboratory of Marine Environment and Ecology Ministry of Education Ocean University of China Qingdao266100 China Department of Engineering Mechanics State of Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou310027 China Laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and Technology Qingdao266237 China

Inhaled nanoparticles (NPs) can deposit in alveoli where they interact with the pulmonary surfactant (PS), potentially inducing toxicity. Although nano-bio interactions are influenced by the physicochemical properties of NPs, isolated NPs used in previous studies cannot accurately represent those found in atmosphere. Here we used molecular dynamics simulations to investigate the interplay between two types of NPs associated with benzo[a]pyrene (BaP) at the PS film. Silicon NPs (SiNPs), regardless of aggregation and adsorption, directly penetrated through the PS film with minimal disturbance. Meanwhile, BaPs adsorbed on SiNPs were rapidly solubilized by PS, increasing the BaP’s bioaccessibility in alveoli. Carbon NPs (CNPs) showed aggregation and adsorption-dependent effects on the PS film. Compared to isolated CNPs, which extracted PS to form biomolecular coronas, aggregated CNPs caused more pronounced PS disruption, especially around irregularly shaped edges. SiNPs in mixture exacerbated the CNP-induced PS perturbation by piercing PS film around the site of CNP interactions. BaPs adsorbed on CNPs were less solubilized and suppressed PS extraction, but aggravated biophysical inhibition and prompted film collapse under compression. These results suggest that for proper assessment of inhalation toxicity of airborne NPs, it is imperative to consider their heterogeneous aggregation and adsorption of pollutants under atmospheric conditions. © 2023, The Authors. All rights reserved.

关键词： Adsorption

来源：评论

学校读者我要写书评

暂无评论

Nitrogen/sulphur dual-doped hierarchical carbonaceous fibers boosting potassium-ion storage

引用

Journal of Energy Chemistry 2021年第4期30卷 420-427页

作者： Junzhi Li Junming Cao Xifei Li Junhua Hu Yaohui Zhang Hirbod Maleki Kheimeh Sari Chunxiao Lv IgorVZatovsky Wei Han Sino-Russian International Joint Laboratory for Clean Energy and Energy Conversion Technology College of PhysicsJilin UniversityChangchun 130012JilinChina Xi'an Key Laboratory of New Energy Materials and Devices Institute of Advanced Electrochemical Energy&School of Materials Science and EngineeringXi’an University of TechnologyXi’an 710048ShaanxiChina State Center for International Cooperation on Designer Low-carbon&Environmental Materials(CDLCEM) Zhengzhou UniversityZhengzhou 450001HenanChina School of Physics Harbin Institute of TechnologyHarbin 150001HeilongjiangChina Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong ProvinceSchool of Environmental Science and EngineeringQingdao UniversityQingdao 266071ShandongChina International Center of Future Science Jilin UniversityChangchun 130012JilinChina

The carbon materials as anode electrodes have been widely studied for potassium ion batteries(PIBs).However,the large size of potassium ions prevents their intercalation/deintercalation,resulting in poor storage ***,a novel design of N/S codoped hierarchical carbonaceous fibers(NSHCF)formed from nanosheets self-assembled by catalyzing Aspergillus niger with Sn is *** asprepared NSHCF at 600℃(NSHCF-600)exhibits a high reversible capacity of 345.4 m Ah g^(-1) at 0.1 A g^(-1) after 100 cycles and an excellent rate performance of 124.5 m Ah g^(-1) at 2 A g^(-1).The excellent potassium storage performance can be ascribed to the N/S dual-doping,which enlarges interlayer spacing(0.404 nm)and introduces more *** larger interlayer spacing and higher pyridinic N active sites can promote K ions diffusion and *** addition,the ex situ transmission electron microscopy reveals the high reversibility of potassiation/depotassiation process and structural stability.

关键词： Carbonaceous fibers Large interlayer spacing Nitrogen/sulphur dual-doping Potassium-ion batteries

来源：评论

学校读者我要写书评

暂无评论

Advanced Super-Wetting Biaxial Polypropylene Membrane with Hierarchical Rough Surface for Multipollutant Removal from Oily Wastewater

SSRN

引用

SSRN 2023年

作者： Usha, Zubaida Rukhsana Babiker, Dafaalla M.D. Zhao, Yilei Chen, Xin Li, Liangbin National Synchrotron Radiation Laboratory Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film CAS Key Laboratory of Soft Matter Chemistry University of Science and Technology of China Hefei230026 China National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety Southwest University of Science and Technology Mianyang621010 China

The hazardous toxicity of oily wastewater creates a negative impact on the environment and ecosystem that has made water separation an open challenge on a global scale. A promising and workable tactic to prevent contaminations and effective water separation from oily wastewater has been proved using cutting-edge advanced polymeric membrane-based separation technology. Excessive hydrophobicity, contamination vulnerability, and membrane fouling are recurring and crippling problems for the treatment of oily wastewater. To overcome these difficulties, we design a facile, scalable, and highly efficient layer-by-layer modification technique using polyethylene imine and levo-3,4 dihydroxyphenylalanine cross-linked multi-layer assembled rough biaxial polypropylene membrane surface. The synergistic development of the rough surfaces causes the embeddedness of wetting properties of the modified membrane with excellent super hydrophilicity (0º) and underwater superoleophobicity (~164.3º). Such great underwater superoleophobicity shows a superior oil-repulsive property that helps to achieve high separation efficiency (99.9%) and permeate flux (2325.3 Lm−2h−1). Additionally, our modified membrane holds excellent anti-bacterial properties against S. aureus and E. coli bacteria with 92.8 and 88.6% viability, respectively. Notably, this highly efficient modified membrane is capable of removing multi pollutants (oil particles and bacteria) from oily wastewater in a more energy-efficient way. © 2023, The Authors. All rights reserved.

关键词： Wetting

来源：评论

学校读者我要写书评

暂无评论

Biocorrosion resistance and biocompatibility of Mg-AI layered double hydroxide/poly(L-lactic acid) hybrid coating on magnesium alloy AZ31

引用

Frontiers of Materials science 2020年第4期14卷 426-441页

作者： Xiang SUN Qing-Song YAO Yu-Chao LI Fen ZHANG Rong-Chang ZENG Yu-Hong ZOU Shuo-Qi LI Corrosion Laboratory ftor Light Metals College of Materials Science and EngineeringShandong University of Science and TechnologyQingdao 266590China School of Materials Science and Engineering Liaocheng UniversityLiaocheng 252059China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450002China College of Chemical and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590China

A Mg-AI layered double hydroxide(Mg-AI-LDH)coating was firstly synthesized via an in-situ steam coating growth method on the AZ31 Mg alloy,and then was modified with poly(L-lactic acid)(PLLA)via dipping and vacuum *** microstructure and composition of LDH/PLLA hybrid coating were analyzed by XRD,SEM,EDS and *** biocorrosion behavior of hybrid coating was evaluated by potentiodynamic polarization,electrochemical impedance spectroscopy(EIS)and hydrogen evolution test in the Hank's *** results showed that LDH/PLLA coatings exhibited a much dense layer compared to the unmodified Mg-AI-LDH coating with unobvious boundary between PLLA and LDH *** corrosion current density of the LDH/PLLA-10 hybrid coating decreased three orders of magnitude in comparison to its *** was proven that the existence of the PLLA coating further prolonged the service life of the Mg-AI-LDH ***'s more,the MTT assay and livel dead staining showed that the LDH/PLL A-10 coating had good biocompatibility for Mouse NIH3T3 *** formation mechanism and the anti-corrosion mechanism of hybrid coatings were proposed.

关键词： magnesium alloy layered double hydroxide poly(L-lactic acid) corrosion resistance biocompatbility

来源：评论

学校读者我要写书评

暂无评论

Deep-sea organisms research oriented by deep-sea technologies development

引用

science Bulletin 2022年第17期67卷 1802-1816页

作者： Jing-Chun Feng Jianzhen Liang Yanpeng Cai Si Zhang Jingchuan Xue Zhifeng Yang Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China School of Ecology Environmentaland ResourcesGuangdong University of TechnologyGuangzhou 510006China South China Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301China

Deep-sea environment,characterized by high pressures,extremely high/low temperatures,limited photosynthesis-generated organic matter,darkness,and high levels of corrosion,is home to flourishing special ecosystems in the ***,we illustrate how the deep-sea equipment offers insights into the study of life in the deep sea based on the work in the past five *** first describe how organisms in the deep sea are studied,even though it is highly difficult to get access to such extreme *** then explain the role of deep-sea technologies in advancing research on the evolution of organisms in hydrothermal vents,cold seeps,seamounts,oceanic trenches,and whale falls from the following perspectives:biological diversity,mechanisms of environmental adaptation,biological evolution,and ecosystem ***,to better understand the function and service of deep-sea organisms,and further conserve the special creatures under anthropologic activity and climate change,we highlight the importance of innovative deep-sea technologies to promote cutting-edge research on deep-sea organisms,and note the remaining challenges and developing directions for deep-sea equipment.

关键词： Deep sea Extreme life Equipment Biological diversity environmental adaptation Ecosystem connectivity

来源：评论

学校读者我要写书评

暂无评论

Study on the Microstructural Characteristics of Coal and the Mechanism of Wettability of Surfactant Solutions at Different Ph Levels

SSRN

引用

SSRN 2023年

作者： Liu, Zhen Jiao, Lishuai Yang, He Zhu, Muyao Zhang, Mengmeng Dong, Bowen College of Safety and Environmental Engineering Shandong University of Science and Technology 579 Qianwangang Rd Huangdao District Qingdao266590 China State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province The Ministry of Science and Technology Shandong University of Science and Technology Qingdao266590 China

The effect of acidity and alkalinity of mine water on the ability of surfactants to wet coal was studied with contact angle measurements to determine the optimal aqueous surfactant concentration, quantitative osmosis experiments to characterize the wettability of coal, and atomic force microscopy to analyze the surface microstructure of the coal. The contact angle measurements showed that the optimum concentrations of both selected surfactants, sodium dodecyl sulfate (SDS) and coconut oil diethanolamide (CDEA), were 1.0 wt%, with contact angles on the coal samples of 25.8° and 36.1°, respectively, which were lower than from other concentrations of the surfactants. The use of quantitative osmosis experiments revealed that the acid-base environment of the surfactant solutions impacted the effect of the surfactants to different extents depending on the type of surfactant. SDS at pH = 9 had the best wetting performance and its osmosis height was 17.2´ greater than the treatment with water at pH = 7. Analyses with atomic force microscopy determined the effect of the wetting mechanism of the surfactant in different acid-base environments on the microstructural characteristics of the coal. The experiments showed that the surface morphology and pore structure of the coal changed after surfactant treatment in different acid-base environments, with more pore structures appearing on the surface of the coal samples. Both acidic and alkaline conditions could enhance the surface roughness of coal. Coal treated with SDS at a pH of 9 had the highest surface porosity of 13.8%. These studies clarify the microscopic wetting mechanism of the surfactants SDS and CDEA at different pH levels of mine water in terms of the microscopic surface morphology and pore structure of the coal, and provide an experimental basis for improving the wetting of coal and the water injection process of a coal seam. © 2023, The Authors. All rights reserved.

关键词： Wetting

来源：评论

学校读者我要写书评

暂无评论

An Electro-Fenton-Like Reaction Pathway to Generate •Oh Avoiding O2-Aeration Using a Potential-Conversion Mode

SSRN

引用

SSRN 2023年

作者： Gao, Mingming Zheng, Xue Li, Shuqi Zhao, Manshu Wang, Xinhua Wang, Shuguang School of Environmental Science and Engineering Shandong University of Science and Technology Qingdao266237 China Shandong Key Laboratory of Environmental Processes and Health Shandong University Qingdao266237 China Shandong Key Laboratory of Water Pollution Control and Resource Reuse Shandong University Qingdao266237 China WeiHai Research Institute of Industrial Technology of Shandong University Weihai264209 China

•OH generation via Electro-Fenton-like (EF-like) reactions mostly relies on O2-aeration, which results in a high energy consumption. Considering H2O2 generation during the anodic oxidation on graphite supported TiO2 composites (TiO2/C) anode and H2O2 decomposition to •OH via heterogeneous EF-like reaction on TiO2/C cathode, we designed a novel EF-like reaction pathway based on a potential-conversion mode. During this potential-conversion mode, the H2O2 and Ti-OH structure produced during the anode process was decomposed to •OH during the cathode process. The allocation of time and potential for potential-conversion mode was optimized as 1.0 V for 300 s and -0.6 V for 100 s, alternately. Under this condition, the •OH yield under potential-conversion mode (2.75 mg/L) was about three times higher than that under anode mode (0.8 mg/L). With cephalexin (CLN) as the target pollutant, the degradation efficiency reached 81.8% under potential-conversion mode and only 37.6% under anode mode within 90 min. When the EF-like device based on potential-conversion mode was used for simulating groundwater remediation, the CLN degradation efficiency were respectively 86.7%, 72.8% and 68.6% under the initial CLN concentration of 5, 10 and 20 mg/L within 8 h running at the hydraulic residence time (HRT) of 1 h. The HRT exhibited as a crucial parameter for the CLN degradation. The potential-conversion mode provides a new EF-like reaction pathway for the efficient •OH production without O2-aeration, offering a potentially cost-effective and eco-friendly method for water remediation. © 2023, The Authors. All rights reserved.

关键词： Titanium dioxide

来源：评论

学校读者我要写书评

暂无评论

A Temperature Pre-Rectifier with Continuous Heat Storage and Release for Waste Heat Recovery from Periodic Flue Gas

SSRN

引用

SSRN 2023年

作者： Qu, Hengyu Jiang, Binfan Liu, Xiangjun Xia, Dehong School of Energy and Environmental Engineering University of Science and Technology Beijing Beijing100083 China Beijing Key Laboratory of Energy Saving and Emission Reduction for Metallurgical Industry University of Science and Technology Beijing Beijing100083 China Shunde Graduate School of University of Science and Technology Guangdong Beijing528399 China

Flue gas from periodic furnaces with large temperature fluctuation is difficult to be recovered by regular heat exchangers. To recover that unstable waste heat, a Temperature Pre-Rectifier (TPR) with honeycombed structure is developed to smooth down the temperature fluctuation by continuous heat-storing and releasing. A three-dimensional model with unsteady flow and heat transfer is constructed to analyze the heat transfer process. Temperature rectification rate η is defined to quantify the smoothing-down effect of temperature fluctuation. The η exhibit the most efficient performance when relative scale (s/δ) is 1.0. The optimized honeycomb size sopt increases exponentially with the inlet temperature fluctuation intensity ξinlet. The η is increased with dimensionless length l*. TPR with segmented structure (s and δ decreased in each segment) can enhance the η with relatively shorter length. Three-segmented structure with a proportion of 0.18:0.33:0.49 can achieve η higher than 0.947, which is recommended for application. Industrial experiments verified that the temperature fluctuation is rectified from 568~1709 K to 1089~1174 K (η = 0.926). A new perspective on waste heat recovery of periodic flue gas based on TPR is provided, and enhancing the efficiency of TPR may be a future challenge. © 2023, The Authors. All rights reserved.

关键词： Flue gases

来源：评论

学校读者我要写书评

暂无评论

Effect of Oxide Interactions on Chromium Speciation Transformation During Simulated Municipal Solid Waste Incineration

SSRN

引用

SSRN 2023年

作者： Zhao, Guodong Tian, Chong Wu, Peidong Zhang, Xuguang Wang, Zhikang Chen, Xiaoxiang Xiong, Zhuo Zhao, Yongchun Zhang, Junying State Key Laboratory of Coal Combustion School of Energy and Power Engineering Huazhong University of Science and Technology Wuhan430074 China School of Power and Mechanical Engineering Wuhan University Wuhan430072 China National Environmental Protection Engineering Technology Center for Trace Elements Pollution Control and Low Carbon Utilization of Coal Huazhong University of Science and Technology Wuhan430074 China School of Environmental Engineering Wuhan Textile University Wuhan430200 China

The removal of chromium from simulated MSWI flue gas by four sorbents (CaO, Bamboo Charcoal (BC), Powdered Activated Carbon (PAC), and Al2O3) and the effects of four oxides (SiO2, Al2O3, Fe2O3, and CaO) on chromium speciation transformation were investigated. The results showed that the removal rates of total Cr by the four sorbents were Al2O3 © 2023, The Authors. All rights reserved.

关键词： Oxidation

来源：评论

学校读者我要写书评

暂无评论

Research on Agricultural and Animal Husbandry Ecological Evolution in North China Based on Computer Machine Learning and GIS Spatial Analysis

Research on Agricultural and Animal Husbandry Ecological Evo...

引用

Power, Electrical engineering, Electronics and Control (PEEEC), International Conference on

作者： Chengyu Wang Runqiao Zhang Zhongguan Wen College of Earth Science and Engineering Xi’an Shiyou University Xi’an China Key Laboratory for Urban Habitat Environmental Science and Technology School of Environment and Energy Peking University Shenzhen Graduate School Shenzhen China School of Geosciences Yangtze University Wuhan China

ISBN: (数字)9798350378917

ISBN: (纸本)9798350378924

The agro-pastoral ecotone is an ecologically fragile and sensitive area. Based on multi-source data, this research analyzes the Geo-Informatic tupu and forecasts of the ecological evolution of Ordos city in the agro-pastoral zone from 1990 to 2020. The findings reveal that: (1) Fractional vegetation cover(FVC) has been in a tendency to decrease first and then continue to increase in the last 30 years, with a total of 85% of regions with medium or higher cover by 2020.(2)The Land-Use and Land-Cover Change(LUCC)has remained relatively stable over the last 30 years, with unused land dominating the stable areas $(43.38 \%)$ and unused land changing to woodland dominating the changing areas ($\gt14 \% / 10 a$), and ecological restoration measures being effective, with farmland forecast being turned mainly to grassland $\mathbf{(9 . 5 6 \%}$) and unused land to woodland $(9.20 \%)$ between 2020 and 2030.(3)In the last 30 years, the average annual temperature and annual equivalent precipitation have been fluctuating upwards, and the annual equivalent precipitation line has been moving in and out widely, with extreme drought (200mm) in 2000 and 2005, and the forecast indicates that temperature and humidity will continue to rise slowly in the future. It is found that the ecological quality of Ordos has fluctuated and improved over time due to the positive and negative effects of climate change and human activities. Therefore, ecological restoration and governance play a pivotal role, and scientific measures to deal with climate change in the future are essential to prevent ecological risks.

关键词： Climate change Agriculture Geographic information systems Ecology Temperature measurement Precipitation Vegetation mapping Land use planning Urban areas Land surface temperature Grasslands Droughts Humidity measurement Urban areas

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：