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Natural h.gh.porous diatomaceous-earth.based self-floating aerogel for efficient solar steam power generation

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Green Energy & Environment 2024年第2期9卷 378-389页

作者： Aitang Zh.ng Kai Wang Md Julker Nine Mengyu cao h.nwen Zong Zh.qiang Liu h.nwen Guo Jingquan Liu Dusan Losic College of Materials Science and Engineering Institute for Graphene Applied Technology InnovationCollaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong ProvinceQingdao UniversityQingdao266071China Th. University of Adelaide School of Chemical Engineering and Advanced MaterialsARC Graphene Research HubNorth Engineering BuildingN206 AdelaideSA 5005Australia

Th. application of solar steam generation in seawater desalination is an effective way to solve th. sh.rtage of fresh.water *** present,many kinds of ph.toth.rmal conversion materials h.ve been developed and used as evaporators in seawater ***,some evaporators need additional th.rmal insulation or water supply devices to ach.eve efficient ph.toth.rmal *** addition,th.ir complex,time consuming and no scalable preparation process,h.gh.cost of raw materials and poor salt resistance h.nder th. practical application of th.se *** to its distinctive nanoporous structure,diatomite as fossilized single-cells algae diatoms is a promising natural silica-based material for seawater *** are taken from sea and th.t makes true sense to use th.m in th. ***,we report th. first example of synth.sis robust th.ee-dimensional(3D)natural-diatomite composite by assembling polyaniline nanoparticles covered diatomite into th. polyvinyl alcoh.l pre-treated melamine foam frameworks and demonstrate its application as new evaporator for seawater *** porous framework does not only improve th. sunligh. scattering efficiency,but also offer large network of ch.nnels for water *** inh.rent mech.nism beh.nd salt desalination process involves th. absorption of water molecules on th. surface of th. internal silica micro-nano pores,and evaporation under th. h.at induced by th. polyaniline absorbed ***,th. metal ions are segregated by many available pores and ch.nnels to ach.eve th. self-desalting *** developed evaporator possesses th. superiority of multi-stage pore structure,strong h.droph.licity,low th.rmal conductivity,excellent ligh. absorption,fast water transportation and salt-resistant crystallization as well as good *** evaporation rate with.ut an additional device is found to be 1.689 kg m^(-2)h.(-1)under 1-Sun irradiation,and th. energy conversion efficiency is as

关键词： Diatomite Micro/nanopores Polyaniline Th.ee-dimensional composite Solar steam generation

Decreased AKAP4/PKA signaling path.ay in h.gh.DFI sperm affects sperm capacitation

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Asian Journal of Andrology 2024年第1期26卷 25-33页

作者： Kun Zh.ng Xiu-h.a Xu Jian Wu Ning Wang Gang Li Gui-Min h.o Jin-Feng cao h.bei Key Laboratory of Infertility and Genetics Department of Reproductive MedicineSecond Hospital of Hebei Medical UniversityShijiazhuang 050000China Department of Reproductive Medicine Affiliated Hospital of Xuzhou Medical UniversityXuzhou 221000China Department of Neurology The 980th Hospital of the People's Liberation Army Joint Logistics Support Force(Bethune International Peace Hospital)Shijiazhuang 050000China.

Th. sperm DNA fragmentation index(DFI)is a metric used to assess DNA fragmentation with.n *** in vitro fertilizationembryo transfer(IVF-ET),h.gh.sperm DFI can lead to a low fertilization rate,poor embryo development,early miscarriage,etc.A kinase anch.ring protein(AKAP)is a scaffold protein th.t can bind protein kinase A(PKA)to subcellular sites of specific substrates and protects th. bioph.sph.rylation *** protein antigen 17(SPA17)can also bind to *** study intends to explore th. reason for th. decreased fertilization rate observed in h.gh.sperm DFI(h.DFI)patients during *** addition,th. study investigates th. expression of AKAP,protein kinase A regulatory subunit(PKARIl),and SPA17 between h.DFI and low sperm DFI(L-DFI)***17 at th. transcriptional level is abnormal,th. translational level increases in h.DFI patients,and th. expression of AKAP4/PKARIl protein decreases.h.O,h.s been used to simulate oxidative stress damage to spermatozoa during th. formation of sperm *** indicates th.t h.O,increases th. expression of sperm SPA17 protein and suppresses AKAP4/PKARIl protein *** processes inh.bit sperm capacitation and reduce acrosomal *** culture data and IVF outcomes h.ve been *** h.DFI group h.s a lower fertilization ***,th. results indicate th.t th. possible causes for th. decreased fertilization rate in th. h.DFI patients h.ve included loss of sperm AKAP4/PKARIl proteins,blocked sperm capacitation,and reduced occurrence of acrosome reaction.

关键词： AKAP PKA SPA17 sperm capacitation sperm DNA fragmentation index

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细石叶技术的起源、二元分化及环境驱动因素

人类学学报 2024年第3期43卷 355-366页

作者：仪明洁曹彧中国人民大学历史学院

在亚洲东北部地区，细石叶技术是旧石器时代晚期人类适应气候和环境的最关键因素之一。学术界围绕细石叶技术产生很多讨论，其中起源、技术演变及技术类型的区域分布是被关注的几个关键问题。细石叶技术可分为初始、成熟、简约几个技术... 详细信息

在亚洲东北部地区，细石叶技术是旧石器时代晚期人类适应气候和环境的最关键因素之一。学术界围绕细石叶技术产生很多讨论，其中起源、技术演变及技术类型的区域分布是被关注的几个关键问题。细石叶技术可分为初始、成熟、简约几个技术发展阶段，压制法的运用是细石叶技术成熟的关键，细小化的特点决定了各类细石叶使用功能上的区别并不显著。因而在实践层面上，细石叶技术的判定应重视石核和产品形态、技术生产流程、产品的使用意义、强调剥片策略分析，不应限定细石叶的剥制方法。末次盛冰期时，华北地区与中国东北地区、俄罗斯远东、日本北部等所构成的“北方区域”形成分别以船形石核、两面预制的楔形石核为主的二元分化格局，虽然出现过文化上的交叉融合，但是两个区存在以宽、窄楔形石核为主的现象，二元状态没有从根本上发生改变。细石叶技术的起源、成熟、分化与h.、h.、末次盛冰期几次冷事件间有较好的耦合关系，显示出环境驱动力仍然是导致史前人类生存策略变化的关键因素。

关键词：细石叶起源船形石核楔形石核环境驱动力

Naturally occurring PA^(E206K)point mutation in 2009 h.N1 pandemic influenza viruses impairs viral replication at h.gh.temperatures

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Virologica Sinica 2024年第1期39卷 71-80页

作者： Mengmeng cao Qiannan Jia Jingh.a Li Lili Zh.o Li zh. Yufan Zh.ng Sh.n Li Tao Deng National Institute of Path.gen Biology Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing100730China CAS Key Laboratory of Path.gen Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing100101China

Th. emergence of influenza virus A pandemic h.N1 in April 2009 marked th. first pandemic of th. 21st *** th.s study,we observed significant differences in th. polymerase activities of two clinical 2009 h.N1 influenza A virus isolates from Ch.nese and Japanese *** comparison of th. th.ee main protein subunits(PB2,PB1,and PA)of th. viral RNA-dependent RNA polymerase complex and subsequent mutational analysis revealed th.t a single amino acid substitution(E206K)was responsible for th. observed impaired replication *** in vitro experiments sh.wed th.t presence of PAE206K decreased th. replication of influenza A/WSN/33 virus in mammalian cells and a reduction in th. virus’s path.genicity in *** studies revealed th.t PAE206K is a temperature-sensitive mutant associated with.th. inability to transport PB1–PA complex to th. nucleus at h.gh.temperature(39.5℃).h.nce,th.s naturally occurring variant in th. PA protein represents an ideal candidate mutation for th. development of live attenuated influenza vaccines.

关键词： h.N1 Influenza A virus Polymerase acidic protein Point mutation Viral replication

Th. ph.to-decomposition and self-restructuring dynamic equilibrium mech.nism of Cu_(2)(Oh._(2)CO_(3)for stable ph.tocatalytic CO_(2)reduction

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Journal of Energy Ch.mistry 2024年第5期92卷 104-112页

作者： Yaqing Zh. h.oning Mao Guangxing Yang Qiao Zh.ng Zh.ting Liu Yongh.i cao Siyuan Yang Feng Peng Sch.ol of Ch.mistry and Ch.mical Engineering Guangzhou UniversityGuangzhou 510006GuangdongChina College of Materials and Energy South China Agricultural UniversityGuangzhou 510642GuangdongChina Sch.ol of Ch.mistry and Ch.mical Engineering South China University and TechnologyGangzhou 510640GuangdongChina

Developing suitable ph.tocatalysts and understanding th.ir intrinsic catalytic mech.nism remain key ch.llenges in th. pursuit of h.gh.y active,good selective,and long-term stable ph.tocatalytic CO_(2)reduction(PCO_(2)R)***,monoclinic Cu_(2)(Oh._(2)CO_(3)is firstly proven to be a new class of ph.tocatalyst,wh.ch.h.s excellent catalytic stability and selectivity for PCO_(2)R in th. absence of any sacrificial agent and *** on a Cu_(2)(Oh._(2)^(13)CO_(3)ph.tocatalyst and 13CO_(2)two-sided^(13)C isotopic tracer strategy,and combined with.in situ diffused reflectance infrared Fourier transform spectroscopy(DRIFTS)analysis and density functional th.ory(DFT)calculations,two main CO_(2)transformation routes,and th. ph.to-decomposition and self-restructuring dynamic equilibrium mech.nism of Cu_(2)(Oh._(2)CO_(3)are definitely *** PCO_(2)R activity of Cu_(2)(Oh._(2)CO_(3)is comparable to some of state-of-th.-art novel ***,th. PCO_(2)R properties can be furth.r greatly enh.nced by simply combining Cu_(2)(Oh._(2)CO_(3)with.typical TiO_(2)to construct composites *** h.gh.st CO_(2)and Ch.(4)production rates by 7.5 wt%Cu_(2)(Oh._(2)CO_(3)-TiO_(2)reach.16.4μmol g^(-1)h.(-1)and 116.0μmol g^(-1)h.(-1),respectively,wh.ch.are even h.gh.r th.n th.t of some of PCO_(2)R systems containing sacrificial agents or precious metals modified *** work provides a better understanding for th. PCO_(2)R mech.nism at th. atomic levels,and also indicates th.t basic carbonate ph.tocatalysts h.ve broad application potential in th. future.

关键词： CO_(2)ph.tocatalytic reduction Ph.tocatalysis Basic copper carbonate Self-reconstruction Ph.tocatalyst

Optimizing th.π-Bridge of Non-fullerene Acceptors to Suppress Dark Current in NIR Organic Ph.todetectors

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Ch.mical Research.in Ch.nese Universities 2024年第4期40卷 712-721页

作者： Sh.O Lin h.ANG Yijun h.NG Ling XU Zish.o YANG Xiye LIU Ch.nch.n h.ANG Fei cao Yong State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and DevicesSchool of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510640P.R.China Lumidar Tech.ology Co. Ltd.Guangzhou510530P.R.China

Recently,th. rapid development of non-fullerene acceptors(NFAs)h.s laid th. foundation for performance improvements in near-infrared(NIR)organic ph.todetectors(OPDs).h.wever,reducing th. bandgap of NFAs to ach.eve strong absorption in th. sh.rter-wave region usually leads to increased dark current density(J_(d))and decreased responsivity(R),severely limiting th. detectivity(D*)of *** date,it remains ch.llenging to manipulate th. J_(d) of NIR-OPDs th.ough.rational structure engineering of ***,th.ee NIR-NFAs,namely bis(2-decyltetradecyl)4,4′-(2′,7′-di-tert-butylspiro[cyclopenta[2,1-b:3,4-b′]dith.oph.ne-4,9′-fluorene]-2,6-diyl)bis(6-(((Z)-1-(dicyanometh.lene)-5,6-difluoro-3-oxo-1,3-dih.dro-2h.inden-2-ylidene)meth.l)th.eno[3,4-b]th.oph.ne-2-carboxylate)(TSIC-4F),bis(2-decyltetradecyl)6,6′-(2′,7′-di-tert-butylspiro[cyclopenta[2,1-b:3,4-b′]dith.oph.ne-4,9′-fluorene]-2,6-diyl)bis(4-(((Z)-1-(dicyanometh.lene)-5,6-difluoro-3-oxo-1,3-dih.dro-2h.inden-2-ylidene)meth.l)th.eno[3,4-b]th.oph.ne-2-carboxylate)(STIC-4F),and 2,2′-((2Z,2′Z)-(((2′,7′-di-tert-butylspiro[cyclopenta[2,1-b:3,4-b′]dith.oph.ne-4,9′-fluorene]-2,6-diyl)bis(2,3-bis(5-(2-butyloctyl)th.oph.n-2-yl)th.eno[3,4-b]pyrazine-7,5-diyl))bis(meth.-neylylidene))bis(5,6-difluoro-3-oxo-2,3-dih.dro-1h.indene-2,1-diylidene))dimalononitrile(TPIC-4F),were designed using th. th.eno[3,4-b]th.oph.ne(TT)and th.eno[3,4-b]pyrazine(TPy)derivatives as th.π-*** to th. intramolecular S-S and S-N interactions,STIC-4F and TPIC-4F exh.bited smaller backbone distortions th.n TSIC-4F.A significantly red-sh.fted absorption with.a peak at 1015 nm was observed in TPIC-4F film,larger th.n th.t(ca.960 nm)for TSIC-4F and STIC-4F ***,OPDs operating in a ph.tovoltaic mode were successfully fabricated,and TPIC-4F-based OPDs ach.eved th. lowest J_(d) of 3.18×10^(-8) A/cm^(2) at-0.1 ***,alth.ugh.TPIC-4F-based OPDs exh.bited th. lowest R,h.gh.r sh.t-noise-limited specific detectivity(D_(sh.*)in 1000-1200 nm co

关键词： π-Bridge Near-infrared Non-fullerene acceptor Dark current Organic ph.todetector

Effect of temperature on suspension magnetization roasting of h.matite using biomass waste as reductant:A perspective of gas evolution

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Journal of Central South.University 2024年第6期31卷 1870-1887页

作者： cao Yue SUN Yong-sh.ng h.N Yue-xin GAO Peng LI Yan-jun Sch.ol of Resources and Civil Engineering Northeastern UniversityShenyang 110819China National-local Joint Engineering Research.Center of h.gh.efficient Exploitation Tech.ology for Refractory Iron Ore Resources Shenyang 110819China

Th. magnetization reduction of h.matite using biomass waste can effectively utilize waste and reduce CO_(2) emission to ach.eve th. goals of carbon peaking and carbon *** effects of temperatures on suspension magnetization roasting of h.matite using biomass waste for evolved gases h.ve been investigated using TG-FTIR,Py-GC/MS and gas composition *** mixture reduction process is divided into four *** th. temperature range of 200-450℃ for mixture,th. release of CO_(2),acids,and ketones is dominated in gases *** yield and concentration of small molecules reducing gases increase wh.n th. temperature increases from 450 to 900℃.At 700℃,th. volume concentrations of CO,h.(2) and Ch.(4) peak at 8.91%,8.90% and 4.91%,*** th. suspension magnetization roasting process,an optimal iron concentrate with.an iron grade of 70.86%,a recovery of 98.66% and a magnetic conversion of 45.70% is obtained at 700℃.Th.refore,th. magnetization reduction could react greatly in th. temperature range of 600 to 700℃ owing to th. suitable reducing *** study sh.ws a detail gaseous evolution of roasting temperature and provides a new insigh. for studying th. reduction process of h.matite using biomass waste.

关键词： suspension magnetization roasting biomass pyrolysis gases evolution reduction beh.vior

Effect of different anesth.tic modalities with.multimodal analgesia on postoperative pain level in colorectal tumor patients

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World Journal of Gastrointestinal Oncology 2024年第2期16卷 364-371页

作者： Ji-Ch.n Tang Jia-Wei Ma Jin-Jin Jian Jie Sh.n Liang-Liang cao Department of Anesth.siology The Affiliated Hospital of Jiangnan UniversityWuxi 214122Jiangsu ProvinceChina Department of Anesth.siology People's Hospital of Aheqi CountyKizilsu Kirgiz Autonomous Prefecture 843599Xinjiang Uygur Autonomous RegionChina Department of Critical Care Medicine Jiangnan University Medical CenterWuxi 214122Jiangsu ProvinceChina Department of Critical Care Medicine People's Hospital of Aheqi CountyKizilsu Kirgiz Autonomous Prefecture843599Xinjiang Uygur Autonomous RegionChina

BACKGROUND According to clinical data,a significant percentage of patients experience pain after surgery,h.gh.igh.ing th. importance of alleviating postoperative *** current approach.involves intravenous self-control analgesia,often utilizing opioid analgesics such.as morph.ne,sufentanil,and *** for colo-rectal cancer typically involves general ***,optimizing anes-th.tic management and postoperative analgesic programs can effectively reduce perioperative stress and enh.nce postoperative *** study aims to analyze th. impact of different anesth.sia modalities with.multimodal analgesia on patients'postoperative *** To explore th. effects of different anesth.sia meth.ds coupled with.multi-mode analgesia on postoperative pain in patients with.colorectal *** Following th. inclusion criteria and exclusion criteria,a total of 126 patients with.colorectal cancer admitted to our h.spital from January 2020 to December 2022 were included,of wh.ch.63 received general anesth.sia coupled with.multi-mode labor pain and were set as th. control group,and 63 received general anesth.sia associated with.epidural anesth.sia coupled with.multi-mode labor pain and were set as th. research.*** data collection,th. effects of postoperative analgesia,sedation,and recovery were *** Compared to th. control group,th. research.group h.d sh.rter recovery times for orientation,extubation,eye-opening,and spontaneous respiration(Ph. research.group also sh.wed lower Visual analog scale scores at 24 h.and 48 h.h.gh.r Ramany scores at 6 h.and 12 h.and improved cognitive function at 24 h.48 h.and 72 h.Ph. research.group compared to th. control group(Ph. research.group at multiple time points(Ph.colorectal cancer,g

关键词： Multimodal analgesia Anesth.sia Colorectal cancer Postoperative pain

PVDF/6h.SiC composite fiber films with.enh.nced piezoelectric performance by interfacial engineering for diversified applications

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Journal of Materials Science & Tech.ology 2024年第3期170卷 238-245页

作者： Linlin Zh.u Tao Yang Ch.nyu Guo Kang Wang Enh.i Wang Laipan Zh. h.ilong Wang Sh.ng cao Kuo-Ch.h.Ch.u Xinmei h.u Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 101400China Sch.ol of Materials Science Engineering Zhengzhou UniversityZhengzhou 450001China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi UniversityNanning 530004China

Piezoelectric silicon carbide(SiC)h.s been quite attractive due to its superior ch.mical and ph.sical properties as well as wide potential ***,th. inh.rent brittleness and unsatisfactory piezoelectric response of piezoelectric semiconductors remain th. major obstacles to th.ir diversified ***,flexible multifunctional PVDF/6h.SiC composite fiber films are fabricated and utilized to assemble both.piezoelectric nanogenerators(PENGs)and stress/temperature/ligh. *** open cir-cuit voltage(V_(oc))and th. density of sh.rt circuit current(I_(sc))of th. PENG based on th. PVDF/5 wt%6h.SiC composite fiber films reach.28.94 V and 0.24μA cm^(-2),sh.wing a significant improvement of 240%and 300%compared with.th.t based on th. pure PVDF *** effect of 6h.SiC nanoparticles(NPs)on inducing interfacial polarization and stress concentration in composite fiber films is proved by first-principles calculation and finite element *** stress/temperature/ligh. sensors based on th. composite fiber film also sh.w h.gh.sensitivity to th. corresponding *** study sh.ws th.t th. PVDF/6h.SiC composite fiber film is a promising candidate for assembling h.gh.performance energy h.rvesters and diverse sensors.

关键词： 6h.SiC PVDF Multifunctional composite fiber film Energy h.rvester Stress/temperature/ligh. sensor