检索结果-南通市图书馆

Synergistic Effect of Core/Shell‑Structured Composite Fibers:Efficient Recovery of Rare‑Earth Elements from Spent NdFeB Permanent Magnets

引用

Advanced Fiber Materials 2024年第6期6卷 1729-1745页

作者： Youngkyun Jung Yun Lee Su‑Jin Yoon Jae‑Woo Choi Center for Water Cycle Research Korea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Department of Chemical and biological engineering Korea UniversitySeoul 02841Republic of Korea Department of Energy and Environment Technology KIST SchoolKorea University of Science and TechnologySeoul 02792Republic of Korea

NdFeB magnets are third-generation permanent magnets that are employed as indispensable components in various ***,rare-earth elements(REEs)such as Dy and Nd must be efficiently recovered from end-of-life magnets to enable resource circulation and reinforce unstable supply *** that end,this paper reports synergistically performing core/shell-structured composite fibers(CSCFs)containing sodium polyacrylate and nanoporous zeolitic imidazolate framework-8(NPZIF-8)nanocrystals as a readily recoverable adsorbent with an exceptional REE-adsorbing *** CSCF core forms an NPZIF-8 nanocrystal shell on the fiber surface as well as draws REEs using its dense sodium carboxylate groups into the NPZIF-8 nanocrystal lattice with high specific surface *** CSCFs exhibit significantly higher maximum adsorption capacities(468.60 and 435.13 mg·g-1)and kinetic rate constants(2.02 and 1.92 min-1)for the Nd3+and Dy3+REEs than those of previously reported REE ***,the simple application of the CSCFs to an adsorption reactor considerably mitigates the adsorbent-shape-induced pressure drop,thereby directly influencing the energy efficiency of the ***,the high REE-recovery ability,tractability,and recyclability of the CSCFs offers a pragmatic pathway to achieving cost-effective REE ***,this study provides new insights into designing synergistically performing core/shell architectures for feasible REE recovery.

关键词： Core/shell structures Fibrous adsorbents Synergistic adsorption Metal resource recovery Pressure drop Rare-earth elements

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Recent developments and trends in thermal blanching-A comprehensive review

引用

Information Processing in Agriculture 2017年第2期4卷 101-127页

作者： Hong-Wei Xiao Zhongli Pan Li-Zhen Deng Hamed M.El-Mashad Xu-Hai Yang Arun S.Mujumdar Zhen-Jiang Gao Qian Zhang College of engineering China Agricultural UniversityP.O.Box 19417 Qinghua DongluBeijing 100083China College of Mechanical and Electrical engineering Shihezi UniversityShihezi 832001China Department of biological and Agricultural engineering University of CaliforniaOne Shields AvenueDavisCA 95616USA Department of Agricultural engineering Mansoura UniversityMansouraEgypt Department of Bioresource engineering McGill UniversitySte.Anne de BellevueQuebecCanada Healthy Processed Foods Research Unit USDA-ARS800 Buchanan St.AlbanyCA 94710USA

Thermal blanching is an essential operation for many fruits and vegetables *** not only contributes to the inactivation of polyphenol oxidase(PPO),peroxidase(POD),but also affects other quality attributes of *** we review the current status of thermal ***,the purposes of blanching,which include inactivating enzymes,enhancing drying rate and product quality,removing pesticide residues and toxic constituents,expelling air in plant tissues,decreasing microbial load,are ***,the reason to why indicators such as POD and PPO,ascorbic acid,color,and texture are frequently used to evaluate blanching process is *** that,the principles,applications and limitations of current thermal blanching methods,which include conventional hot water blanching,steam blanching,microwave blanching,ohmic blanching,and infrared blanching are ***,future trends are identified and discussed.

关键词： Thermal blanching Hot water blanching Microwave blanching Steam blanching Ohmic blanching Infrared blanching

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Novel Thermomorphic System for Electrocatalytic Diels-Alder Reactions

引用

Chinese Journal of Chemistry 2019年第6期37卷 557-560页

作者： Yasushi Imada Naoki Shida Yohei Okada Kazuhiro Chiba Department of Applied biological Science Tokyo University of Agriculture and Technology3-5-8 Saiwai-choFuchuTokyo 183-8509Japan Department of Chemical engineering Tokyo University of Agriculture and Technology2-24-16 Naka-choKoganeiTokyo 184-8588Japan

The discovery that lithium bis(trifluoromethane)sulfonamide (LiTFSI)/1-nitropropane (PrNO2) solution functions as a less polar alternative to lithium perchlorate (LiClO4)/nitromethane (MeNO2) solution has led to the development of a novel thermomorphic system for electrocatalytic Diels-Alder reactions. Methyl cyclohexane (Me-c-Hex) can form a monophasic condition with LiTFSI/PrNO2 solution at room temperature, enabling the use of hydrophobic dienophiles. After the electrochemical reaction, a biphasic condition can be formed at –50℃, where the cycloadducts are selectively recovered from the upper Me-c-Hex phase and the remaining lower LiTFSI/PrNO2 solution can be reused.

关键词： thermomorphic system electro catalytic Diels-Alder reaction electrochemistry synthetic methods cycloaddition

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

OOCDB:A Comprehensive,Systematic,and Real-time Organs-on-a-chip Database

引用

Genomics, Proteomics & Bioinformatics 2023年第2期21卷 243-258页

作者： Jian Li Weicheng Liang Zaozao Chen Xingyu Li Pan Gu Anna Liu Pin Chen Qiwei Li Xueyin Mei Jing Yang Jun Liu Lincao Jiang Zhongze Gu School of Life Science and Technology Southeast UniversityNanjing 210096China School of biological Science&Medical engineering Southeast UniversityNanjing 210096China School of Computer Data&Information SciencesUniversity of Wisconsin-MadisonMadisonWI 53706USA

Organs-on-a-chip is a microfluidic microphysiological system that uses microfluidic technology to analyze the structure and function of living human cells at the tissue and organ levels in ***-on-a-chip technology,as opposed to traditional two-dimensional cell culture and animal models,can more closely simulate pathologic and toxicologic interactions between different organs or tissues and reflect the collaborative response of multiple organs to *** the fact that many organs-on-a-chip-related data have been published,none of the current databases have all of the following functions:searching,downloading,as well as analyzing data and results from the literature on ***,we created an organs-on-a-chip database(OOCDB)as a platform to integrate information about organs-on-a-chip from various sources,including literature,patents,raw data from microarray and transcriptome sequencing,several open-access datasets of organs-on-a-chip and organoids,and data generated in our *** contains dozens of sub-databases and analysis tools,and each sub-database contains various data associated with organs-on-a-chip,with the goal of providing researchers with a comprehensive,systematic,and convenient search ***,it offers a variety of other functions,such as mathematical modeling,three-dimensional modeling,and citation mapping,to meet the needs of organs-on-a-chip.

关键词： Organ Mathematical model Citation map Organs-on-a-chip

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Evaluation of Aqueous Product from Hydrothermal Liquefaction of Cardboard as Bacterial Growth Medium: Co-Liquefaction of Cardboard and Bacteria for Higher Bio-Oil Production

引用

Journal of Sustainable Bioenergy Systems 2017年第2期7卷 51-64页

作者： A. Shende W. Nan E. Kodzomoyo J. Shannon J. Nicpon R. Shende Department of Chemical and biological engineering South Dakota School of Mines & Technology Rapid City SD USA

Hydrothermal liquefaction (HTL) processing of lignocellulosic biomass to bio-oil produces aqueous co-product (AP) which contains significant (~40 wt%) carbon from the original feedstock. This study evaluates macro and micronutrient composition of AP from Ca(NO3)2 catalyzed HTL of cardboard (CbAP) to cultivate bacteria. HPLC, GC-MS and ICP-MS analysis of CbAP revealed presence of C1-C3 carboxylic acids, aldehydes, ketones, phenolics, sub-optimal phosphorous and bio-incompatible levels of calcium. Dilutions (5 - 80 vol%) of detoxified CbAP (DTP-CbAP) in potassium phosphate buffer (pH 7.2) were supplemented with 50 mg·mL-1 of yeast extract and inoculated with metabolically versatile Enterobacter species. The cultures were incubated at 25°C under aerobic conditions. A maximum 9.4 fold increase in the dry cell weight was observed in DTP-CbAP-15 vol%. Co-liquefaction of the bacteria with cardboard in 1:1 and 1:3 weight ratios each produced ~33% more total bio-oil. These had higher HHVs of 34.11 and 31.05 MJ·kg-1, respectively compared with bio-oil from cardboard feedstock alone which had HHV of 30.61 MJ·kg-1. The study highlights the challenges in cultivating microbes in AP from HTL of lignocellulosic biomass (LCB) and the possibility to integrate microbial capture and recycle of the AP carbon for enhanced bio-oil production and quality.

关键词： Hydrothermal Liquefaction Cardboard Bio-Oil Aqueous Co-Product Enterobacter

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of Tensile Stimulation and Electrical Stimulation on the Connexion-43 m RNA Levels of Cardiomyocytes in vitro

引用

Chinese Journal of Biomedical engineering(English Edition) 2018年第3期27卷 126-131页

作者： LI Ping LI Yu LIU Li-zhen JIA Lu SONG Yan-hui JIA Xiao-ling FAN Yu-bo Key Lab for Biomechanics and Mechanobiology of Ministry of Education School of Biological Science and Medical Engineering Beihang University

The heart is regulated by excitation-contraction mechanism and electrical stimulation, so both cardiac tissues and myocytes in vivo are affected by the mechanical and electrical factors at the same time. The device that can supply both tensile stimulation and electrical stimulation was produced. Cardiomyocytes were isolated by trypsin and collagenase Ⅱ combined digestion. After 72 h's culture, different electrical stimulations(0.5 V/cm, 1 V/cm, 2 V/cm;1 Hz;2 ms;30 min) and mechanical stretching force(tensile 10%, 6 h) were used to stimulate cultured cardiomyocytes respectively. Then the combinative stimulation of mechanical and electrical stimulation with 0.5 V/cm was used to apply to cardiomyocytes simultaneously. After stimulation,Connexin-43(Cx-43) mRNA level was detected by RT-PCR. The stimulation by electrical pulse of 0.5 V/cm resulted in obvious enhancement of Cx-43 m RNA level compared to the control group and the Cx-43 mRNA levels at 0.5 V/cm were higher significantly than those under both 1.0 V/cm and 2.0 V/cm. After 10% of tensile stimulation for 6 h, expressions of Cx-43 mRNA were also significantly promoted. The combinative effect of mechanical and electrical stimulation on the expression of Cx-43 mRNA is higher than that under unique tensile stimulation or electrical stimulation,which is more beneficial to the development and connection of cardiomyocytes.

关键词： cardiomyocytes combinative effects electrical stimulation tensile stimulation Connexin-43 m RNA

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Injectable hydrogels for spinal cord injury repair

引用

Engineered Regeneration 2022年第4期3卷 407-419页

作者： Huan Wang Hui Zhang Zhongyu Xie Keng Chen Mengjun Ma Yuejiao Huang Minli Li Zhaopeng Cai Peng Wang Huiyong Shen The Eighth Affiliated Hospital Sun Yat-Sen UniversityShenzhen 518033China School of Life Science and Technology Southeast UniversityNanjing 210096China State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China

Spinal cord injury(SCI)often causes severe functional impairment of body,which leads to a huge burden to the patient and the whole *** strategies,especially biomaterials,have been employed for SCI *** various biomaterials,injectable hydrogels have attracted much attention because of their ability to load functional components and be injected into the lesioned area without *** this review,we summarize the recent progress in injectable hydrogels for SCI *** firstly introduce the pathophysiology of SCI,which reveals the mechanism of clinical manifestations and determines the therapeutic ***,we describe the original sources of polymers and the crosslinking manners in forming *** that,we focus on the in vivo therapeutic strategies and effects of injectable ***,the recent challenges and future outlook of injectable hydrogel for SCI repair are concluded and *** believe this review can be helpful and inspire the further development of injectable hydrogels for SCI repair.

关键词： Injectable hydrogel Spinal cord injury Extracellular matrix Neuroprotection Nerve regeneration

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Construction of TiO_(2)-covalent organic framework Z-Scheme hybrid through coordination bond for photocatalytic CO_(2) conversion

引用

Journal of Energy Chemistry 2022年第1期31卷 85-92,I0003页

作者： Lei Wang Guofang Huang Liang Zhang Rui Lian Jingwei Huang Houde She Chunli Liu Qizhao Wang Key Laboratory of Eco-Environment-Related Polymer Materials Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional MaterialsCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou 730070GansuChina Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025HeilongjiangChina School of Environmental Science and engineering Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of EducationChang'an University.Xi'an 710054ShaanxiChina Department of Physics Oxide Research Centerand Memory and Catalyst Research CenterHankuk University of Foreign StudiesYongin 17035Republic of Korea

In this work,a covalent organic framework(COF),which is constructed by the building blocks of[5,10,15,20-tetrakis(4-aminophenyl)porphinato]copper(Ⅱ)(CuTAPP)and p-benzaldehyde,is employed to integrate with TiO_(2) for the purpose of establishing a Z-scheme *** the system,isonicotinic acid performs the role of a bridge that connects the two components through a coordination *** photocatalytic application reveals the hybrid framework is able to catalyze CO_(2) conversion under simulated solar light,resulting in CO production rate of 50.5 μmol g^(-1)·h^(-1),about 9.9 and 24.5 times that of COF and pristine TiO_(2),*** ameliorated catalytic performance owes much to the por-phyrin block acting as photosensitizer that augments the light absorbance,and the establishment of Z-scheme system between the inorganic and orga nic comp on ents that enhances the separati on of the *** addition,the chemical bridge also ensures a steady usage and stable charge delivery in the *** study sheds light on the development of versatile approaches to covalently in corporate COFs with inorga nic semic on ductors.

关键词： CuP-Ph COF TiO_(2) Sensitization Z-scheme CO_(2)reduction Photocatalysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Numerical investigation on melting characteristics of scrap with heat and mass transfers in molten steel

引用

Journal of Iron and Steel Research International 2023年第6期30卷 1090-1100页

作者： Cong-lin Yao Hong-chun Zhu Zhou-hua Jiang Hua-bing Li Hong-bin Lu Shu-cai Zhang Hao Feng School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina Institute for Frontier Technologies of Low-Carbon Steelmaking Northeastern UniversityShenyang 110819LiaoningChina Liaoning Province engineering Research Center for Technologies of Low-Carbon Steelmaking Northeastern UniversityShenyang 110819LiaoningChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningChina Key Laboratory for ecological Metallurgy of Multimetallic Ores(Ministry of Education) Shenyang 110819LiaoningChina

Herein,a numerical simulation with simultaneous heat and mass transfers is carried out to investigate the scrap melting characteristics in molten steel after model verification by published experimental *** numerical results show that the scrap melting stages consist of the frozen shell formation stage,the frozen shell remelting stage and the parent scrap melting *** heat transfer coefficient and the carbon mass transfer coefficient between the scrap and the molten steel are,respectively,in the range of 4209-6249 W m^(-2) K^(-1) and 6.4×10^(-5) m s^(-1).Meanwhile,the effects of process parameters on scrap melting time were *** increase in the scrap preheating temperature(T_(scrap)),the molten steel temperature(T_(steel))and the carbon content of molten steel(C_(steel)),and a decrease in the scrap thickness dscrap,can reduce the frozen shell existence time,as well as the scrap melting *** this basis,a quantitative relationship between the aforementioned process parameters and the scrap melting time is obtained to predict the formation of frozen shell(W),which provides process guidance for shortening the scrap melting *** quantitative relationship is expressed as:lnΨ=311.32-2.34ln(T_(scrap))-39.99ln(T_(steel))-0.08ln(d_(scrap))-0.57ln(C_(steel)).

关键词： Frozen shell Scrap melting Heat transfer Mass transfer Numerical simulation Electric arc furnace

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Near-field electrospun PCL fibers/GelMA hydrogel composite dressing with controlled deferoxamine-release ability and retiform surface for diabetic wound healing

引用

Nano Research 2023年第1期16卷 599-612页

作者： Huiling Zhong Jun Huang Moucheng Luo Yifei Fang Xinchen Zeng Jun Wu Jianhang Du Medical Research Center The Eighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen 518033China School of Biomedical engineering Sun Yat-sen UniversityGuangzhou 510006China Institute of biological and Medical engineering Guangdong Academy of SciencesGuangzhou 510316China Department of Liver Surgery The Third People’s Hospital of ShenzhenShenzhen 518112China NHC Key Laboratory of Assisted Circulation Sun Yat-sen UniversityGuangzhou 510080China

Wound ulceration caused by diabetes is a typical chronic wound wherein healing the local tissue is difficult due to lack of blood vessels and tissue necrosis caused by the long-term accumulation of free ***-field electrospinning(NFES)is an innovative technology used to produce micro-nano-scaled,controllable sequencing *** this study,we constructed a novel wound dressing based on the NFES polycaprolactone(PCL)fiber network and modified gelatin with methacrylic anhydride(GelMA)hydrogel to promote angiogenesis and the re-epithelialization of diabetic *** angiogenic and antioxidant drug named deferoxamine(DFO)was encapsulated in a GelMA hydrogel to achieve a slow-release effect that is more suitable for chronic *** cell adhesion experiment showed that the cells could attach to the fibers in the dressing group having a network of PCL fibers on the surface and grow along the direction of the fibers,which in turn,effectively regulates cell behavior from the physical ***,the large pore size(~500μm)of the network allowed the cells to penetrate the pores and enter the surface of the hydrogel without being blocked ***,the composite dressing had a notable effect on ***,antioxidation experiments confirmed that the DFO-loaded hydrogel exhibited antioxidant *** animal models of diabetes showed that rats treated with the PCL-GelMA-DFO(PGD)hydrogel had faster ability of hemostasis,scab formation,and wound *** conclusion,the PGD hydrogel effectively promoted the repair of chronic wounds.

关键词： diabetic wound healing near field electrospinning hydrogel large pore

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

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：