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Bioinspired design of integral molded Janus silk fibroin-MXene evaporator for efficient solar vapor generation

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Nano Research 2024年第4期17卷 2824-2835页

作者： ling-Qing Kong Zhi-Cheng Zeng Guang-Zong Min Zhao-Hui Meng Guo-Qing Meng Xiao-Xiao Guo nai-Bo lin Xiang-Yang Liu The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province Research Center of Biomedical Engineering of XiamenDepartment of BiomaterialsCollege of MaterialsXiamen UniversityXiamen 361005China The State Key Laboratory of Marine Environmental Science(MEL) College of Ocean and Earth SciencesXiamen UniversityXiamen 361005China

Solar vapor generation is a promising sustainable technology that uses solar distillation to produce fresh water from seawater and wastewater,helping relieve global water resource ***,inspired by naturally grown integrally molded mulberry leaves with a Janus hydrophilic and hydrophobic structure,a novel,simple,and efficient integrated molding method is proposed to break through the limitations of the traditional split manufacturing strategy and realizes the integrated formation of Janus *** on the spontaneous sedimentation characteristics of MXene in silk fibroin solution and its regulation of mesoscopic structure and hydrophilicity of silk fibroin,layered structures with different compositions and hydrophilicities were obtained in one ***,ethanol and glutaraldehyde were added to construct a physical crystallization-chemical crosslinking dual stabilization structure in silk *** evaporator has the evaporation rate of 3.07 kg·m^(-2.·h^(-1) and the efficiency of 86.8%under 1 sun and maintains high evaporation performance under various extreme test conditions including vigorous washing,repeated compression,and high-intensity ultraviolet(UV)***,the evaporator performs well in practical application scenarios,its evaporation rate in the simulated Dead Sea seawater exceeds 2.13 kg·m^(-2.·h^(-1),and more than 99.9%of the salt,heavy metal ions,oil pollution,and dyes are purified.

关键词： silk fibroin MXene bioinspired integrated molding Janus structure solar vapor generation

A Principal Theorem of Generalized Galerkin's Schemes

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wuhan University Journal of Natural Sciences 2002年第2期7卷 137-138页

作者： du nai-{2. 1, du nai-xia 2.1. school of mathematics and statistics, wuhan University, wuhan 4.0072. Hubei {12. 2. Hebei Institute of Architectural Science and Technology, Handan 056038, Hebei {12. school of mathematics and {2. Wuhan University Wuhan 430072 Hubei China Hebei Institute of Architectural Science and Technology Handan 056038 Hebei China

In the present paper, the authors announce a newlyproved theorem of theirs. This theorem is of principal significance to numerical computation of solutions of variational equations.

关键词： variational equation generalized Galerkin's scheme pseudoinverse

Cold-Induced Reprogramming of Subcutaneous White Adipose Tissue Assessed by Single-Cell and Single-Nucleus RNA Sequencing

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Research 2024年第1期2023卷 763-778页

作者： Qing Liu Qiaoyun Long Jiayu Zhao Wenjie Wu Zexin lin Wei Sun Ping Gu Tuo Deng Kerry Martin Loomes Donghai Wu Alice P.S.Kong Jingying Zhou Alfred S.Cheng hannah Xiaoyan Hui school of Biomedical Sciences The Chinese University of Hong KongHong KongChina Department of Pharmacology and Pharmacy The University of Hong KongHong KongChina Guangzhou Institute of Biomedicine and Health Chinese Academy of SciencesGuangzhouChina china-New Zealand Joint Laboratory on Biomedicine and Health Chinese Academy of SciencesGuangzhouChina Department of Endocrinology Jinling HospitalNanjing UniversitySchool of MedicineNanjingChina National Clinical Research Center for Metabolic Diseases and Department of Metabolism and EndocrinologyThe Second Xiangya Hospital of Central South UniversityChangshaChina Key Laboratory of Diabetes Immunology Ministry of Educationand Metabolic Syndrome Research CenterThe Second Xiangya Hospital of Central South UniversityChangshaChina Clinical Immunology Center The Second Xiangya Hospital of Central South UniversityChangshaChina school of Biological Sciences and Maurice Wilkins Centre University of AucklandAucklandNew Zealand Department of Medicine and Therapeutics The Chinese University of Hong KongHong KongChina Hong Kong Institute of Diabetes and Obesity The Chinese University of Hong KongPrince of Wales HospitalShatinHong KongChina Li Ka Shing Institute of Health Sciences The Chinese University of Hong KongPrince of Wales HospitalShatinHong KongChina

Adipose browning has demonstrated therapeutic potentials in several ***,by conducting transcriptomic profiling at the single-cell and single-nucleus resolution,we reconstituted the cellular atlas in mouse inguinal subcutaneous white adipose tissue(iWAT)at thermoneutrality or chronic cold *** major nonimmune cells within the iWAT,including adipose stem and progenitor cells(ASPCs),mature adipocytes,endothelial cells,Schwann cells,and smooth muscle cells,were recovered,allowing us to uncover an overall and detailed blueprint for transcriptomes and intercellular cross-talks and the dynamics during white adipose tissue brown *** findings also unravel the existence of subpopulations in mature adipocytes,ASPCs,and endothelial cells,as well as new insights on their interconversion and reprogramming in response to *** adipocyte subpopulation competent of major histocompatibility complex class Ⅱ(MHCⅡ)antigen presentation is ***,a subcluster of ASPC with CD74 expression was identified as the precursor of this MHCⅡ^(+)*** adipocytes are transdifferented from preexisting lipid generating adipocytes,which exhibit developmental trajectory from de novo differentiation of amphiregulin cells(Aregs).Two distinct immune-like endothelial subpopulations are present in iWAT and are responsive to *** data reveal fundamental changes during cold-evoked adipose browning.

关键词： evoked programming generating

Quality evaluation for air plasma spray thermal barrier coatings with pulsed thermography

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Progress in Natural Science:Materials International 2011年第4期21卷 301-306页

作者： Shi-bin ZHAO~1,Cun-lin ZHANG~2.nai-ming WU~3,Hua-ming {2.~1 1.school of Materials Science and Engineering,Beihang University,Beijing 100191,china 2.Department of Physics,Capital Normal University,Beijing 100048,china 3.school of Jet Propulsion,Beihang University,Beijing 100191,china school of Materials Science and Engineering Beihang University Beijing 100191 China Department of Physics Capital Normal University Beijing 100048 China school of Jet Propulsion Beihang University Beijing 100191 China

Pulsed thermography(PT) as a non-contact non-destructive evaluation(NDE) technique was employed to examine as-sprayed air plasma spray(APS) thermal barrier coatings(TBCs) for quality *** and micro-structural characteristics play a vital role in determining the *** this paper,PT logarithmic peak second-derivative method was adopted to measure the thickness of top *** dependent thermal images were used to characterize the microstructure which was confirmed by scanning electron microscope(SEM).The results showed that there was relationship between the temperature distribution of the surface and microstructure change in *** distribution in thermal images and measurement results of thickness were in fairly good agreement with the microstructure *** can be concluded that it was possible to employ these NDE methods as quality evaluation for as-sprayed TBCs.

关键词： thermal barrier coatings(TBCs) non-destructive evaluation(NDE) pulsed thermography microstructure thickness measurement

水泥生料的燃烧固硫特性及其微观反应机理研究

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燃料化学学报 2004年第5期32卷 622-626页

作者：谢峻林赵改菊罗金平梁乃峰邱建荣华中科技大学能源与动力学院湖北武汉430074 武汉理工大学材料科学与工程学院湖北武汉430070

采用SC 132.硫仪对水泥生料的燃烧固硫特性进行了评价,利用XRD、SEM对煅烧样品进行矿相组成分析及矿物形态分析,讨论了水泥生料高温固硫的微观反应机理。结果表明,高温段固硫物相的热稳定性是影响水泥生料固硫效率的决定因素。水泥生... 详细信息

采用SC 132.硫仪对水泥生料的燃烧固硫特性进行了评价,利用XRD、SEM对煅烧样品进行矿相组成分析及矿物形态分析,讨论了水泥生料高温固硫的微观反应机理。结果表明,高温段固硫物相的热稳定性是影响水泥生料固硫效率的决定因素。水泥生料在较宽温度范围内具有85%以上的固硫效率。850℃时已有CaSO4形成,1050℃时CaSO4开始分解。1050℃～12.0℃生成耐高温的硫硅酸钙、硫铝酸钙等复合矿物。1300℃时铁铝酸盐固熔体等将硫酸盐的表面包裹,抑制其高温分解,使水泥生料在1300℃时仍有较高的固硫效率。

关键词：煤燃烧固硫水泥生料微观反应机理

Structural Analysis and Identification of Cis-Elements of Rice osRACD Gene

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Acta Biochimica et Biophysica Sinica 2004年第3期36卷 191-198页

作者： Yun-Zhe XU, Rui-lin YOU and nai-Hu WU Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100080, {2. 2.ollege of Life Sciences, Peking University, Beijing 100871, {2. Institute of Genetics and Developmental Biology Chinese Academy of Sciences College of Life Sciences Peking University

The osRACD gene correlated with fertility transformation in the photoperiod sensitive genic male sterile rice (PGMR), Nongken 58S, encoded a rice (Oryza sativa L. ssp. japonica) small GTPase belonging to the Rac/Rho family. Inverse PCR was performed to amplify a fragment about 1.4 kb in 5' upstream region of the osRACD promoter. Deletion mutation and gel mobility shift assay characterized two fragments (–799 to –686 nt, and –686 to –431 nt) in the osRACD promoter that could be involved in its transcriptional regulation. When these two deletion fragments were used as probe respectively, a retarded band appeared in the nuclear extracts of fertile 58S rice under short day (58S-SD). Whereas no retarded band was shown in the nuclear extracts of sterile 58S rice under long day (58S-LD). Competition assay indicated that the factors in the retarded bands binding to these two fragments were the same trans-acting factor (termed rice factor, RF). The binding affinity of RF was affected by phosphorylation and was higher in SD-growth rice than that of LD-growth rice.

关键词： photoperiod-sensitive male genic sterile rice osRACD gene photoperiod fertility transformation cis-element

Identification and Characterization of a Rat Novel Gene RSEP4 Expressed Specifically in Central Nervous System

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Acta Biochimica et Biophysica Sinica 2004年第7期36卷 501-507页

作者： Xi-Dao wang1,2. ling-Wei KONG1, Zhi-Qin XIE1, Yu-Qiu ZHANG3, Zhi-Xin lin2. Zhi-Qi ZHAO3,Lei YU4, and nai-He JING1* 1 Laboratory of Molecular Cell Biology, Laboratory of Stem Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Graduate school of the Chinese Academy of Sciences, Shanghai 2.0031, china school of Life Science and Biotechnology, 2. Shanghai Jiaotong University, Shanghai 2.0030, china Institute of Neurobiology, Fudan University, Shanghai 2.0433, china 3 4 Department of Cell Biology, Neurobiology and Anatomy, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA Laboratory of Molecular Cell Biology and Stem Cell Biology Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Graduate School of the Chinese Academy of Sciences Shanghai China

The low-abundantly expressed genes composed the majorities of the mRNAs expressed in the central nervous system (CNS), and were thought to be important for the normal brain functions. Through differential screening a low-abundance cDNA sublibrary with mRNA from neuropathic pain of chronic constriction injury (CCI) model, we have identified a novel rat gene, rat spinal-cord expression protein 4 gene (RSEP4). The total length of RSEP4 cDNA is 2.06 bp, with a 501 nucleotide open reading frame (ORF) that encodes a 167 amino acid polypeptide. Northern blot revealed that RSEP4 was expressed specifically in the CNS. In situ hybridization showed that the mRNA of RSEP4 was strongly expressed in the CA1, CA2. CA3 and DG regions of hippocampus, the Purkinje cells of cerebellum, and the small sensory neurons of dorsal horn and large motor neurons of ventral horn of spinal cord. Over-expression of RSEP4-EGFP fusion protein in the human embryonic kidney 2.3T cells showed that RSEP4 protein was mainly localized in the cell cytoplasm. These results suggest that RSEP4 may play some roles in the CNS.

关键词： central nervous system (CNS) rat Northern blot in situ hybridization

A New Type of Bistable Switching in Two-Dimensional Nonlinear Optical Superlattices

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Chinese Physics Letters 1996年第2期13卷 109-112页

作者： wang Zhen-lin YANG Zhen-ju MIN {2.-ben National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093

we investigate theoretically optical responsc in a two-dimensional optical superlattice with Kerr-type *** ind that in addition to the bistability reported in ***.71(1993)1003 by Xu et,al.,a new type of bista ble switching behavior *** bistability is based on the occurrence of the stop gap in the lincar spectraand the nonlinear mechanism on it,which makes switching between transmitting and non-transmitting states achievable.

关键词： Nonlinear addition nonlinear

基于航空摄影测量的填埋堆体动态重构精度及影响因素

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中国环境监测 2024年第3期40卷 260-270页

作者：林汀能昌信徐亚张鲁玉代硕山东工商学院信息与电子工程学院山东烟台264005 中国环境科学研究院固体废物污染控制技术研究所环境基准与风险评估国家重点实验室北京100012

填埋堆体表面形变监测是填埋场库容管理和堆体失稳等风险分析的核心,其时空高分辨率监测研究近年来引起广泛关注。基于航空摄影的地表测量技术具有采集速度快、时空分辨率高等优点,但在填埋场特殊环境下,面对高频填埋活动、显著的堆体... 详细信息

填埋堆体表面形变监测是填埋场库容管理和堆体失稳等风险分析的核心,其时空高分辨率监测研究近年来引起广泛关注。基于航空摄影的地表测量技术具有采集速度快、时空分辨率高等优点,但在填埋场特殊环境下,面对高频填埋活动、显著的堆体变化以及防雨膜覆盖等干扰时,要同时满足高时空分辨率和耗时短的动态监测要求,无人机的最佳飞行参数设定亟待研究。为此,该研究模拟中等规模危险废物填埋场的规模和日填埋量,利用专业级无人机获取模拟区域图像,空三加密处理生成三维点云数据,利用Arcmap叠加分析多期监测数据,从点位坐标、重构尺度、重构体积、体积差分精度4个角度分析重构误差。结果表明:三维重构的坐标精度可以达到米级;重构尺度误差为2.3 cm,重构体积误差为0.16~0.17 m^(3),差分体积误差为0.16~0.17 m^(3);进一步研究发现,高度为2.~55 m时,高度越高精度越低,相机倾角为[-53°,-60°]时,精度最高,旁向重叠率大于80%时,误差骤减且基本稳定。考虑到填埋场的填埋作业间隔、无人机续航能力等对飞行时间的约束,为获得最佳精度,建议无人机飞行高度为37 m、相机倾斜角度为[-53°,-60°]、旁向重叠率为80%。

关键词：填埋场库容管理监测无人机飞行参数