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Preparation of reverse osmosis membrane with high permselectivity and anti-biofouling properties for desalination

Frontiers of Environmental Science & Engineering 2022年第7期16卷 73-86页

作者： Xinxia Tian Hui Yu Jun Yang Xiaotai Zhang Man Zhao Yang Yang wei Sun yangyang wei Yin Zhang Jian Wang Zhun Ma The Institute of Seawater Desalination and Multipurpose Utilization MNR(Tianjin)Tianjin300192China Tianjin Huanke Environment Consulting CO. LTDTianjin300191China College of Chemical and Biological Engineering Shandong University of Science and TechnologyQingdao266590China

High performance is essential for the polyamide(PA)reverse osmosis(RO)membranes during the desalination ***,RO membranes with high permselectivity and anti-biofouling properties were fabricated by nanoparticles incorporation and anti-biofouling ***(HT)incorporation was performed with a dual role,enhancing water flux and acting as grafting *** HT incorporation increased the water flux without sacrificing the salt rejection,compensating for the loss caused by the following grafting *** exposed surface of HT acted as grafting sites for anti-biofouling agent dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride(DMOTPAC).The combination of HT incorporation and DMOTPAC grafting endowed RO membranes with high permselectivity and anti-biofouling *** water flux of the modified membrane PA-HT-0.06 was 49.8 L/m^(2)·h,which was 16.4%higher than that of the pristine *** salt rejection of PA-HT-0.06 was 99.1%,which was comparable to that of the pristine *** to the fouling of negatively charged lysozyme,the modified membrane’s water flux recovery was superior to that of the pristine membrane(e.g.86.8%of PA-HT-0.06 compared to 78.2%of PA-pristine).The sterilization rates of PA-HT-0.06 for *** and *** were 97.3%and 98.7%,much higher than those of the pristine membrane(24.0%for *** and 26.7%for ***).

关键词： Anti-biofouling grafting Nanoparticle incorporation Sterilization rates Water flux Water flux recovery

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Surface modification of mesoporous silica nanoparticle with 4-triethoxysilylaniline to enhance seawater desalination properties of thin-film nanocomposite reverse osmosis membranes

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Frontiers of Environmental Science & Engineering 2020年第1期14卷 99-108页

作者： Jian Wang Qun Wang Xueli Gao Xinxia Tian yangyang wei Zhen Cao Chungang Guo Huifeng Zhang Zhun Ma Yushan Zhang The Institute of Seawater Desalination and Multipurpose Utilization Ministry of Natural Resources(Tianjin)Tianjin 300192China College of Chemical and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590China Key Laboratory of Marine Chemistry Theory and Technology(Ministry of Education) Ocean University of ChinaQingdao 266100China

Mesoporous silica nanoparticles(MSN),with higher water permeability than NaA zeolite,were used to fabricate thin-film nanocomposite(TFN)reverse osmosis(RO)***,only aminoalkyl-modified MSN and low-pressure(less than 2.1 MPa)RO membrane were *** this study,aminophenyl-modified MSN(AMSN)were synthesized and used to fabricate high-pressure(5.52 MPa)RO *** the increasing of AMSN dosage,the crosslinking degree of the aromatic polyamide decreased,while the hydrophilicity of the membranes *** membrane morphology was maintained to show a ridge-and-valley structure,with only a slight increase in membrane surface *** the optimum conditions(AMSN dosage of 0.25 g/L),when compared with the pure polyamide RO membrane,the water flux of the TFN RO membrane(55.67 L/m^2/h)was increased by about 21.6%,while NaCl rejection(98.97%)was slightly decreased by only 0.29%.However,the water flux of the membranes was much lower than *** considered that the enhancement of RO membrane permeability is attributed to the reduction of the effective thickness of the PA layer.

关键词： Thin film nanocomposite membrane Reverse osmosis Seawater desalination Aminophenyl-functionalized m esoporous silica nanoparticles

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Widespread incomplete lineage sorting and introgression shaped adaptive radiation in the Gossypium genus

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Plant Communications 2024年第2期5卷 185-197页

作者： Yanchao Xu yangyang wei Zhongli Zhou Xiaoyan Cai Scott ABoden Muhammad Jawad Umer Luqman BSafdar Yuling Liu Dingsha Jin Yuqing Hou Yuhong Wang Sarah Brooke Wall Kunbo Wang Shuxun Yu Baohong Zhang Renhai Peng Fang Liu National Key Laboratory of Cotton Bio-breeding and Integrated Utilization Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyang 455000China College of Plant Science and Technology Huazhong Agricultural UniversityWuhan 40070China College of Biology and Food Engineering Anyang Institute of TechnologyAnyang 455000China National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572024China School of Agriculture Food and WineUniversity of AdelaideAdelaideSA 5005Australia Sanya Institute Hainan Academy of Agricultural SciencesSanya 572000China Department of Biology East Carolina UniversityGreenvilleNC 27858USA School of Agricultural Sciences Zhengzhou UniversityZhengzhou 450001China

Cotton(Gossypium)stands as a crucial economic crop,serving as the primary source of naturalfiber for the textile ***,the evolutionary mechanisms driving speciation within the Gossypium genus remain *** this investigation,we leveraged 25 Gossypium genomes and introduced four novel assem-blies—***,***,***,and ***(Gklo)—to delve into the speciation history of this ***,we encountered intricate phylogenies potentially stemming from *** complexities are further compounded by incomplete lineage sorting(ILS),a factor likely to have been instrumental in shaping the swift diversification of *** focus subsequently shifted to the rapid radiation episode during a concise period in Gossypium *** a recently diverged lineage comprising ***,Gklo,and ***,we constructed afinely detailed ILS ***,this analysis revealed the non-random distribution of ILS regions across the reference Gklo ***,we identified signs of robust natural selection influencing specific ILS *** variations per-taining to speciation emerged between the closely related sister species Gklo and ***-mately 15.74%of speciation structural variation genes and 12.04%of speciation-associated genes were esti-mated to intersect with ILS *** enrich our understanding of the role of ILS in adaptive radiation,shedding fresh light on the intricate speciation history of the Gossypium genus.

关键词： cotton speciation Gossypium genus incomplete lineage sorting ILS phylogenetic analysis gene tree resolution

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创新要素配置对区域共同富裕影响的实证检验

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统计与决策 2023年第16期39卷 27-31页

作者：王薇李瑞魏阳阳西安财经大学西部能源经济与区域发展协同创新研究中心西安710100 西安财经大学经济学院西安710100

文章基于我国31个省份2000—2020年的面板数据,利用固定效应模型、中介效应模型和门槛回归模型,实证检验了创新要素配置对区域共同富裕的影响及其作用机制。研究表明:(1)创新要素配置对区域共同富裕水平的提升具有显著正向作用;(2)创新... 详细信息

文章基于我国31个省份2000—2020年的面板数据,利用固定效应模型、中介效应模型和门槛回归模型,实证检验了创新要素配置对区域共同富裕的影响及其作用机制。研究表明:(1)创新要素配置对区域共同富裕水平的提升具有显著正向作用;(2)创新要素配置不仅可以通过数字经济以及产业结构升级的独立中介渠道来提升区域共同富裕水平,还可以通过数字经济→产业结构升级的链式中介渠道来发挥作用,其中数字经济的独立中介效应最为突出;(3)创新要素配置对区域共同富裕的影响受到数字经济以及产业结构升级的调节,具有明显的非线性特征;(4)创新要素配置对区域共同富裕水平提升的促进作用在落后地区更强。

关键词：创新要素配置数字经济产业结构升级区域共同富裕

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变射程喷头在坡地喷灌中的应用

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农业工程学报 2011年第8期27卷 115-119页

作者：向清江陈超魏洋洋江苏省流体机械工程技术研究中心镇江212013

传统单喷头在坡地上进行喷灌时,水量分布会发生改变。为提高坡地上喷洒均匀性,采用一种压力/流量调节装置与20型全射流喷头结合,使上坡射程增大,下坡射程减小,从而改善坡地上单喷头的水量分布。根据喷头的旋转均匀性满足行业标准要求,... 详细信息

传统单喷头在坡地上进行喷灌时,水量分布会发生改变。为提高坡地上喷洒均匀性,采用一种压力/流量调节装置与20型全射流喷头结合,使上坡射程增大,下坡射程减小,从而改善坡地上单喷头的水量分布。根据喷头的旋转均匀性满足行业标准要求,平地喷洒形成的射程差符合上、下坡射程差的要求,以及调节装置形成的压力损失不能太大三个约束条件,对调节装置的关键尺寸,调节片基本开孔半径进行了优化,结果表明半径选择3mm合适。坡地上径向水量分布以及射程的试验数据表明,这种变射程喷头适合大约10°坡度的调节,具有改善水量分布的作用,在坡地组合喷灌中具有优势。

关键词：农业工程喷灌应用坡地射程全射流喷头

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汉语“和”类平比标记的兼用功能及在民族语言的扩散

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汉语学报 2019年第1期 47-56,95,96页

作者：李向农魏阳阳华中师范大学文学院 430079

"和"类平比结构在东亚地区的广泛分布,在世界范围内并不是普遍现象,该区域化特征很可能是周边地区语言复制汉语"和"类平比结构的结果。汉语的"和"类平比标记与伴随功能之间存在语义域上的相邻关系,但部分少数民族语言当中的"和"类平比... 详细信息

"和"类平比结构在东亚地区的广泛分布,在世界范围内并不是普遍现象,该区域化特征很可能是周边地区语言复制汉语"和"类平比结构的结果。汉语的"和"类平比标记与伴随功能之间存在语义域上的相邻关系,但部分少数民族语言当中的"和"类平比标记倾向于与并列功能构成直接蕴含关系。有鉴于此,平比、并列、伴随功能的概念语义地图需要进行重新调整。

关键词：平比标记语义地图区域化复制语序规则

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Transcriptional landscape of cotton roots in response to salt stress at single-cell resolution

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Plant Communications 2024年第2期5卷 46-66页

作者： Pengtao Li Qiankun Liu yangyang wei Chaozhu Xing Zhongping Xu Fang Ding Yuling Liu Quanwei Lu Nan Hu Tao Wang Xiangqian Zhu Shuang Cheng Zhaoguo Li Zilin Zhao Yanfang Li Jiangping Han Xiaoyan Cai Zhongli Zhou Kunbo Wang Baohong Zhang Fang Liu Shuangxia Jin Renhai Peng College of Biology and Food Engineering Anyang Institute of TechnologyAnyangHenan 455000China State Key Laboratory of Cotton Biology Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyangHenan 455000China Research Base Anyang Institute of TechnologyState Key Laboratory of Cotton BiologyAnyang 455000HenanChina School of Life Sciences Zhengzhou UniversityZhengzhouHenan 450001China Hubei Hongshan Laboratory National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanHubeiChina Hubei Key Laboratory of Plant Pathology Huazhong Agricultural UniversityWuhanHubei 430070China Department of Biology East Carolina UniversityGreenvilleNC 27858USA

Increasing soil salinization has led to severe reductions in plant yield and quality,and investigating the mo-lecular mechanism of salt stress response is therefore an urgent *** this study,we systematically analyzed the response of cotton roots to salt stress using single-cell transcriptomics technology;56281 high-quality cells were obtained from 5-day-old lateral root tips of Gossypium arboreum under natural growth conditions and different salt *** cell types with an array of novel marker genes were identified and confirmed by in situ RNA hybridization,and pseudotime analysis of some specific cell types revealed their potential differentiation *** changes in cell numbers under salt stress were observed for outer epidermal and inner endodermal cells,which were significantly enriched in response to stress,amide biosynthetic process,glutathione metabolism,and glycolysis/*** of differentially expressed genes identified in multiple comparisons revealed other functional ag-gregations concentrated on plant-type primary cell wall biogenesis,defense response,phenylpropanoid biosynthesis,and metabolic *** candidate differentially expressed genes encoding transcrip-tion factors or associated with plant hormones also responsive to salt stress were identified,and the func-tion of Ga03G2153,annotated as auxin-responsive GH3.6,was confirmed by virus-induced gene *** GaGH3.6-silenced plants showed a severe stress-susceptible phenotype,and physiological and biochemical measurements indicated that they suffered more significant oxidative *** results suggest that GaGH3.6 might participate in cotton salt tolerance by regulating redox *** thus construct a transcriptional atlas of salt-stressed cotton roots at single-cell resolution,enabling us to explore cellular heterogeneity and differentiation trajectories and providing valuable insights into the mo-lecular mechanisms that underlie plan

关键词： cotton salt stress scRNA-seq root cell types virus-induced gene silencing

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Sources of organic matter and paleo-environmental implications inferred from carbon isotope compositions of lacustrine sediments at Inexpressible Island, Ross Sea, Antarctica

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Advances in Polar Science 2016年第4期27卷 233-244页

作者： wei yangyang JIN Jing NIE Yaguang CHEN Xin WU Libin FU Pingqing LIU Xiaodong Steven D.Emslie Institute of Polar Environment School of Earth and Space Sciences University of Science and Technology of China Key Laboratory of Ion Beam Bioengineering Hefei Institutes of Physical Science Chinese Academy of SciencesKey Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province LAPC Institute of Atmospheric Physics Chinese Academy of Sciences Department of Biology and Marine Biology University of North Carolina Wilmington

The carbon isotopic composition of organic matter （δ^13Corg） was determined in two sediment cores （IIL1 and IIL9） recovered from Inexpressible Island, Ross Sea, Antarctica, and analyzed to identify the sources of that organic matter. The δ^13Corg values of sediments of IIL9 were found to vary between -14.6‰ and -11.6‰, with a mean of-13.4‰ （n=48）. These values were significantly higher than those of IIL1 sediments which varied between -23.2‰ and -20.4‰, with a mean of-21.8%o （n=55）. The variation in δ^13Corg values in these two sediment cores indicate different sources of organic matter, The relatively high 6~3Corg values in IIL9 are in accordance with a source from algae, while the low δ^13Corg values in IIL1 evince significant influence from penguin guano with algae as the secondary source. Compared with the reference data from other high-latitude lake sediments and plants, the δ^13Corg values in IIL9 were extremely high, a result likely related to intense competition for CO2 assimilation among algal species during the growing season in this relatively shallow pond. These results indicate that sedimentary δ^13Corg is a reliable proxy for paleo-primary productivity in ponds at Inexpressible Island.

关键词： Inexpressible Island Ross Sea pond sediments lake algae carbon isotopic composition paleo-environment

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超导磁力与静压液膜力复合轴承的静动特性分析

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摩擦学学报 2016年第5期36卷 531-537页

作者：陈润霖许吉敏卫洋洋袁小阳西安交通大学现代设计及转子轴承系统教育部重点实验室陕西西安710049

以新一代液体火箭发动机涡轮泵为应用前景,提出了一种带小孔节流的超导-液体静压复合推力轴承.该复合轴承由6块圆形超导瓦和6块带有小孔节流的圆形液体静压推力瓦构成,依靠涡轮泵系统自带的低温介质(如液氢液氧等),可以实现超导磁斥力... 详细信息

以新一代液体火箭发动机涡轮泵为应用前景,提出了一种带小孔节流的超导-液体静压复合推力轴承.该复合轴承由6块圆形超导瓦和6块带有小孔节流的圆形液体静压推力瓦构成,依靠涡轮泵系统自带的低温介质(如液氢液氧等),可以实现超导磁斥力与流体静压力的复合.基于解耦方法分析了复合轴承的静动特性,重点研究不同液膜厚度下复合轴承的承载力和刚度随节流孔径、液腔直径等的变化规律.在设计工作点附近,超导推力瓦和静压推力瓦的承载力大体相当,而后者的刚度则是前者的300倍以上.理论结果表明该复合结构既可以保证启动阶段无接触摩擦,又能在工作阶段保持较高刚度以抗冲击,对设计高可靠性火箭涡轮泵的轴系结构具有参考价值.

关键词：超导磁力液膜力复合轴承静动特性

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异形喷嘴变量喷头结构设计及其水量分布试验

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农业工程学报 2010年第9期26卷 149-153页

作者：袁寿其魏洋洋李红向清江江苏大学流体机械工程技术研究中心镇江212013

为提高灌溉质量,降低喷灌系统工程投资,在摇臂式喷头基础上安装动静片和改装异形喷嘴装置,研制了一种新型的异形喷嘴变量喷洒喷头,介绍了其结构形式及工作原理。对安装异形喷嘴的变量喷头和圆形喷嘴变量喷头进行了对比试验研究及分析,... 详细信息

为提高灌溉质量,降低喷灌系统工程投资,在摇臂式喷头基础上安装动静片和改装异形喷嘴装置,研制了一种新型的异形喷嘴变量喷洒喷头,介绍了其结构形式及工作原理。对安装异形喷嘴的变量喷头和圆形喷嘴变量喷头进行了对比试验研究及分析,并绘制了单喷头三维水量分布图和径向水量分布曲线。研究表明,异形喷嘴变量喷头运行可靠、基本能够实现三角形喷洒域,减小了现有的变域喷洒喷头喷洒均匀性容易受工作压力波动的影响,与圆形喷嘴的摇臂变量喷头相比其喷洒性能良好,减小了雨滴打击强度,改善了喷灌均匀性。经计算其平均喷灌强度ρ为6.74mm/h。用异形喷头装置可以改善变量喷头喷洒均匀度。

关键词：喷嘴喷洒结构设计水力学异形喷嘴变量喷洒水力性能水量分布均匀度

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