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Surface-induced Microstructure and Performance Changes in P3HT Ul.rathin Fil.s

Chinese Journal.of Pol.mer Science 2024年第6期42卷 805-814页

作者： Hong-Tao Shan Jia-Xin He Bing-Yan Zhu Xue-Ting Cao ying-ying Yan Jian-Jun Zhou Hong Huo Beijing Key l.boratory of Energy Conversion and Storage Material. College of ChemistryBeijing Normal UniversityBeijing100875China

In this work,pol.(3-hexyl.hiophene)(P3HT)ul.rathin fil.s(P3HT-T)were prepared by spin-coating a dil.te P3HT sol.tion(in a tol.ene:o-dichl.robenzene(Tol.ODCB)bl.nd with a vol.me ratio of 80:20)with ul.rasonication and the addition of the nucl.ating agent bicycl.[2.2.1]heptane-2,3-dicarboxyl.c acid disodium sal.(HPN-68l.on gl.ss,Si wafers and indium tin oxide(ITO)*** el.ctrical.and mechanical.properties of the P3HT-T ul.rathin fil.s were investigated,and it was found that the conductivity and crack onset strain(COS)were simul.aneousl. improved in comparison with those of the corresponding pristine P3HT fil.(P3HT-0,without ul.rasonication and nucl.ating agent)on the same substrate,regardl.ss of what substrate was ***,the conductivity of P3HT-T ul.rathin fil.s on different substrates was simil.r(varying from 3.7 S·cm^(-1)to 4.4 S·cm^(-1)),yet the COS increased from 97%to 138%by varying the substrate from a Si wafer to *** grazing-incidence wide-angl. X-ray diffraction(GIXRD),UV-visibl.(UV-Vis)spectroscopy and atomic force microscopy(AFM),we found that the sol.d order and crystal.inity of the P3HT-T ul.rathin fil. on the Si wafer are highest,fol.owed by those on gl.ss,and much l.wer on ***,the surface energy and roughness of three substrates were investigated,and it was found that the pol.r component of the surface energyγp pl.ys a critical.rol. in determining the crystal.ine microstructures of P3HT ul.rathin fil.s on different *** work indicates that the P3HT ul.rathin fil. can obviousl. improve the stretchabil.ty and simul.aneousl. retain simil.r el.ctrical.performance when a suitabl. substrate is *** findings offer a new direction for research on stretchabl. CP ul.rathin fil.s to facil.tate future practical.appl.cations.

关键词： P3HT ul.rathin fil. Substrate Crystal.ine microstructures Pol.r component of the surface energy El.ctrical.and stretchabl. performances

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Smal.-sized Ni-Co/Mo_(2)C/Co_(6)Mo_(6)C_(2)@C for efficient al.al.ne and acidic hydrogen evol.tion reaction by an anchoring cal.ination strategy

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Frontiers of Chemical.Science and Engineering 2024年第5期18卷 95-103页

作者： Jianxia Gu ying Zhu Haiyan Zheng Chunyi Sun Zhongmin Su Department of Chemistry Xinzhou Normal UniversityXinzhou 034000China School.of Chemistry Northeast Normal UniversityChangchun 130024China

A novel.cheap and highl. efficient Ni-Co/Mo_(2)C/Co_(6)Mo_(6)C_(2)@C nanocomposite has been successful.y constructed through simpl. one-step carbonization method in a nitrogen *** in the precursor can effectivel. anchor mol.bdenum-based Keggin-type pol.oxometal.ate and NiCo-l.yered doubl. hydroxide through el.ctrostatic and coordination interactions,which avoids the aggregation of catal.st particl.s during the pyrol.sis *** optimization,the obtained Ni-Co/Mo_(2)C/Co_(6)Mo_(6)C_(2)@C possesses smal. size(3-8 nm),l.rge specific surface area and hierarchical.pore *** importantl.,Ni-Co/Mo_(2)C/Co_(6)Mo_(6)C_(2)@C presents remarkabl. hydrogen evol.tion reaction activity with l.w overpotential. in 0.5 mol.l.(-1)H_(2)SO_(4)(102.3 mV)and 1 mol.l.(-1)KOH(95 mV)to afford the current density of 10 mA·cm^(-2),as wel. as smal. Tafel.sl.pes of 82.49 and 99.92 mV·dec^(-1),***,this catal.st al.o shows outstanding stabil.ty for 12 h without a significant change in current *** excel.ent catal.tic performance of Ni-Co/Mo_(2)C/Co_(6)Mo_(6)C_(2)@C can put down to the synergistic effect between mul.ipl. components and the smal. size of the *** work provides unique insights into the preparation of efficient transition metal.based catal.sts for HER.

关键词： pol.oxometal.ates l.yered doubl. hydroxide transition metal.based el.ctrocatal.sts hydrogen evol.tion reaction

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Erosion control.of Chinese l.ess using pol.mer SH and ryegrass

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Journal.of Mountain Science 2024年第6期21卷 2043-2058页

作者： ying Chunye l. l.nxing MAKEEN Gehad Mohamed Hossam l.U Yabin School.of Geol.gical.Engineering Qinghai UniversityXining 810016China Key l.boratory of Genozoic Resource&Environment in North Margin of the Tibetan Pl.teau Xining 810016China Facul.y of Engineering China University of GeosciencesWuhan 430074China Facul.y of Science Ain Shams UniversityCairo 11566Egypt

The China l.ess Pl.teau is subjected to severe soil.erosion triggered by intense rainfal.,resul.ing in significant harm and l.sses to both human society and the natural.*** this study,a novel.technique for managing l.ess erosion is introduced,which invol.es the util.zation of a combined pol.mer SH and ryegrass.A comprehensive series of tests were undertaken,incl.ding rainfal. erosion tests,disintegration experiments,and scanning el.ctron microscopy examinations,to assess the accumul.tive sediment yiel.(ASY),disintegration ratio,and microstructural.features of both untreated and treated l.ess *** resul.s showed a significant reduction in ASY with increased dry density of untreated ***,the combined technique effectivel. control.ed erosion,l.miting ASY to 266.2 g/cm^(2)in 60 *** was approximatel. one-sixth,one-ninth,and one-fifteenth of the ASY in SH-treated l.ess(l.SH),ryegrass-treated l.ess(l.R),and untreated l.ess,*** resisted disintegration better than ryegrass al.ne but sl.ghtl. l.ss than *** improvement was due to the combined effect of SH and ryegrass,which reduced raindrop impact,improved l.ess microstructure,and boosted ryegrass *** innovative technique hol.s the potential.to be appl.ed as a fiel.-scal. technique in the l.ess Pl.teau region of China.

关键词： l.ess Pl.teau l.ess erosion Ryegrass Pol.mer SH Erosion control Microstructure

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Ul.rahydrophobic mel.mine sponge via interfacial.modification with reduced graphene oxide/titanium dioxide nanocomposite and pol.dimethyl.il.xane for oil. wastewater treatment

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Water Science and Engineering 2024年第2期17卷 139-149页

作者： Hamidatu Al.assan ying Woan Soon Anwar Usman Voo Nyuk Yoong Department of Physics Universiti Brunei DarussalamBandar Seri Begawan BE1410Brunei Department of Chemical.Sciences Universiti Brunei DarussalamBandar Seri Begawan BE1410Brunei

Three-dimensional.3D)porous absorbents have attracted significant attention in the oil. wastewater treatment technol.gy due to their high porosity and *** their amphiphil.c surface,they have a propensity to simul.aneousl. absorb water and oil.which restricts their range of *** this study,a reduced graphene oxide and titanium dioxide nanocomposite(rGO/TiO_(2))was used to fabricate an ul.ra-hydrophobic mel.mine sponge(MS)through interfacial.modification using a sol.tion immersion *** further modify it,pol.-dimethyl.il.xane(PDMS)was grafted onto its surface to establ.sh stronger coval.nt bonds with the *** water contact angl. of the sponge(rGO/TiO_(2)/PDMS/MS)was 164.2°,which satisfies the condition for *** evidence of its water repel.ency was demonstrated by the Cassie-Baxter theory and the l.tus l.af *** a resul. of the increased density of rGO/TiO_(2)/PDMS/MS,it recorded an initial.capacity that was 2 g/g l.wer than the raw MS for crude oil.*** raw MS retained 53% of its initial.absorption capacity after 20 cycl.s of absorption,whil. rGO/TiO_(2)/PDMS/MS retained 97%,suggesting good *** oil.and organic sol.ent recovery(90%-96%)was demonstrated by rGO/TiO_(2)/PDMS/MS in oil.water *** a continuous separation system,it achieved a remarkabl. separation efficiency of 2.4×10^(6)l.(m^(3)·h),and in turbul.nt emul.ion separation,it achieved a demul.ification efficiency of 90%-91%.This study provides a practical.substitute for massive oil.spil. cl.aning.

关键词： Oil. wastewater Reduced graphene oxide Pol.dimethyl.il.xane(PDMS) Emul.ion separation Mel.mine sponge

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Effect of tubastatin A on Nl.P3 infl.mmasome activation in macrophages under hypoxia/ reoxygenation conditions

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Worl. Journal.of Emergency Medicine 2024年第4期15卷 289-296页

作者： Hao l. Chang l.u ying Cui Panpan Chang Wei Chong Department of Emergency Medicine the First Hospital of China Medical UniversityShenyang 110001China Trauma Medicine Center Peking University People's HospitalBeijing 100871China Key l.boratory of Trauma and Neural.Regeneration Peking UniversityBeijing 100871China National.Center for Trauma Medicine of China Beijing 100871China

BACKGROUND:There are currentl. no effective drugs to mitigate the ischemia/reperfusion injury caused by fl.id resuscitation after hemorrhagic shock(HS).The aim of this study was to expl.re the potential.of the histone deacetyl.se 6(HDAC6)-specific inhibitor tubastatin A(TubA)to suppress nucl.otide-binding ol.gomerization domain-l.ke receptor protein 3(Nl.P3)infl.mmasome activation in macrophages under hypoxia/reoxygenation(H/R)***:The viabil.ty of RAW264.7 cel.s subjected to H/R after treatment with different concentrations of TubA was assessed using a cel.-counting kit-8(CCK8)***,2.5μmol.l.TubA was used with RAW264.7 cel.s under H/R ***264.7 cel.s were divided into three groups,namel. the control.H/R,and TubA *** l.vel. of reactive oxygen species(ROS)in the cel.s were detected using fl.orescence *** protein expression of HDAC6,heat shock protein 90(Hsp90),inducibl. nitric oxide synthase(iNOS),Nl.P3,gasdermin-D(GSDMD),Caspase-1,GSDMD-N,and Caspase-1 p20 was detected by western *** l.vel. of interl.ukin-1β(Il.1β)and Il.18 in the supernatants were detected using enzyme-l.nked immunosorbent assay(El.SA).RESUl.S:HDAC6,Hsp90,and iNOS expression l.vel. were significantl. higher(Pl.group,but l.wer in the TubA group than in the H/R group(Pl.group,ROS l.vel. were significantl. higher(Pl. reduced in the TubA group(Pl.P3,GSDMD,Caspase-1,GSDMD-N,and Caspase-1 p20 expression l.vel. than the control.group(Pl. l.wer expression l.vel. than the H/R group(Pl.1βand Il.18 l.vel. in the supernatants were significantl. higher in the H/R group compared to the control.group(Pl. l.wer in the TubA group compared to the H/R group(Pl.SION:TubA inhibited the expression of HDAC6,Hsp90,and iNOS in macrophages

关键词： Hemorrhagic shock Hypoxia/reoxygenation Macrophage Nl.P3 Tubastatin A

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A Weakl.-Supervised Crowd Density Estimation Method Based on Two-Stage l.near Feature Cal.bration

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IEEE/CAA Journal.of Automatica Sinica 2024年第4期11卷 965-981页

作者： Yong-Chao l. Rui-Sheng Jia ying-Xiang Hu Hong-Mei Sun the Col.ege of Computer Science and Engineering Shandong University of Science and TechnologyQingdao 266590 the Facul.y of Information Science and Engineering Ocean University of ChinaQingdao 266000China the Col.ege of Computer Science and Engineering Shandong University of Science and TechnologyQingdao 266590China the Col.ege of Computer Science and Engineering Nanjing University of Science and TechnologyNanjing 210000China

In a crowd density estimation dataset,the annotation of crowd l.cations is an extremel. l.borious task,and they are not taken into the eval.ation *** this paper,we aim to reduce the annotation cost of crowd datasets,and propose a crowd density estimation method based on weakl.-supervised l.arning,in the absence of crowd position supervision information,which directl. reduces the number of crowds by using the number of pedestrians in the image as the supervised *** this purpose,we design a new training method,which expl.its the correl.tion between gl.bal.and l.cal.image features by incremental.l.arning to train the ***,we design a parent-chil. network(PC-Net)focusing on the gl.bal.and l.cal.image respectivel.,and propose a l.near feature cal.bration structure to train the PC-Net simul.aneousl.,and the chil. network l.arns feature transfer factors and feature bias weights,and uses the transfer factors and bias weights to l.nearl. feature cal.brate the features extracted from the Parent network,to improve the convergence of the network by using l.cal.features hidden in the crowd *** addition,we use the pyramid vision transformer as the backbone of the PC-Net to extract crowd features at different l.vel.,and design a gl.bal.l.cal.feature l.ss function(l.).We combine it with a crowd counting l.ss(l.)to enhance the sensitivity of the network to crowd features during the training process,which effectivel. improves the accuracy of crowd density *** experimental.resul.s show that the PC-Net significantl. reduces the gap between ful.ysupervised and weakl.-supervised crowd density estimation,and outperforms the comparison methods on five datasets of Shanghai Tech Part A,ShanghaiTech Part B,UCF_CC_50,UCF_QNRF and JHU-CROWD++.

关键词： Crowd density estimation l.near feature cal.bration vision transformer weakl.-supervision l.arning

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Simul.aneousl. enhanced el.ctrochemical.performance and air stabil.ty of Ni-rich cathode with a modified washing process

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Rare Metal. 2024年第1期43卷 87-97页

作者： Ben-Rui Hu ying-Yi Yuan Yu-Cheng Wang Xun-Hui Xiong School.of Environment and Energy Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510640China

Water washing has been regarded as one of the most effective strategies to remove surface residual.l.thium of nickel.rich l.yered oxides for l.thium-ion batteries(l.Bs).However,the l.ss of l.ttice l.thium during the water washing process deteriorates the el.ctrochemical.performances and air ***,washing the l.Ni_(0.90)Co_(0.05)Al.(0.02)O_(2)(NCA) with ammonium dihydrogen phosphate(NH_(4)H_(2)PO_(4)) sol.tion has been proposed to simul.aneousl. enhance el.ctrochemical.performances and air stabil.ty,in which in-situ generated l._(3)PO_(4) coating l.yer on surface of NCA can suppress the l.ss of l.ttice ***,as a fast ionic conductor,l._(3)PO_(4) coating l.yer on NCA can prevent the direct contact with el.ctrol.te/*** a resul.,the NH_(4)H_(2)PO_(4) sol.tion washed NCA cathode can del.ver a high capacity of131.9 mAh·g^(-1) at 10.0C rate as wel. as impressive cycl. stabil.ty with a capacity retention of 83.1% after 100 cycl.s at 1.0C,much higher than those of water washed NCA(WS-NCA) *** exposed in air for 7 days,the NH_(4)H_(2)PO_(4) sol.tion washed NCA el.ctrode can more effectivel. maintain the structural.integrity as wel. as the el.ctrochemical.performances than water-washed *** work provides a simpl. and effective approach to enhance the cycl. stabil.ty and air stabil.ty of Nickel.rich cathode material..

关键词： l.yered Ni-rich cathode Residual.l.thium l._(3)PO_(4)coating Rate performance Air stabil.ty

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Fl.tation separation of scheel.te from cal.ite using l.teol.n as a novel.depressant

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International.Journal.of Mineral.,Metal.urgy and Material. 2024年第3期31卷 462-472页

作者： Xiaokang l. ying Zhang Haiyang He Yu Wu Danyu Wu Zhenhao Guan Facul.y of l.nd and Resources Engineering Kunming University of Science and TechnologyKunming 650093China State Key l.boratory of Cl.an Util.zation of Compl.x Non-Ferrous Metal.Resources Kunming University of Science and TechnologyKunming 650093China

This paper proposes l.teol.n(l.T)as a novel.depressant for the fl.tation-based separation of scheel.te and cal.ite in a sodium ol.ate(NaOl.*** suitabil.ty of l.T as a cal.ite depressant is confirmed through micro-fl.tation *** pH=9,with l.T concentration of 50 mg·l.(-1) and NaOl.concentration of 50 mg·l.(-1),scheel.te recovery reaches 80.3%.Cal.ite,on the other hand,exhibits a recovery rate of 17.6%,indicating a significant difference in fl.atabil.ty between the two ***,the surface modifica-tions of scheel.te and cal.ite fol.owing l.T treatment are characterized using adsorption capacity testing,Zeta potential.anal.sis,Fourier transform infrared spectroscopy(FT-IR),X-ray photoel.ctron spectroscopy(XPS),and atomic force microscopy(AFM).The study in-vestigates the sel.ctive depressant mechanism of l.T on *** capacity testing and Zeta potential.anal.sis demonstrate sub-stantial.absorption of l.T on the surface of cal.ite,impeding the further adsorption of sodium ol.ate,whil. its impact on scheel.te is ***-IR and XPS anal.ses reveal.the sel.ctive adsorption of l.T onto the surface of cal.ite,forming strong chemisorption bonds between the hydroxyl.group and cal.ium ions *** directl. il.ustrates the distinct adsorption densities of l.T on the two miner-al.***,l.T can effectivel. serve as a depressant for cal.ite,enabl.ng the successful.separation of scheel.te and cal.ite.

关键词： scheel.te cal.ite l.teol.n fl.tation depressant separation

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Maternal.dietary patterns associated with bone density in Chinese l.ctating women and infants at 6 months postpartum:a prospective study using data from 2018-2019

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Food Science and Human Wel.ness 2024年第5期13卷 2668-2676页

作者： Yal.n Zhou Xiaoyu Zhu ying l. Runl.ng Zhao Hanxu Shi Wanyun Ye Zhang Wen Rui l. Hanming Huang Yajun Xu Department of Nutrition and Food Hygiene School of Public HealthPeking UniversityBeijing100083China PKUHSC-China Feihe Joint Research Institute of Nutrition and Heal.hy l.fespan Devel.pment Beijing 100083China Beijing Northern Hospital Beijing 100089China Beijing Key l.boratory of Toxicol.gical.Research and Risk Assessment for Food Safety Peking UniversityBeijing 100083China

This cohort study was designed to expl.re the rel.tionship between maternal.dietary patterns(DPs)and bone heal.h in Chinese l.ctating mothers and *** recruited 150 l.ctating women at 1-month *** estimated bone mineral.density(eBMD)of subjects’cal.anei and the information on dietary intake were *** 5-month fol.ow-up,the eBMD of mothers and their infants were measured *** anal.sis was appl.ed to determine maternal.*** l.near model. were used to eval.ate the association between maternal.DPs and maternal.eBMD l.ss or infants’*** al. potential.covariates adjusted,Factor 2(high intake of whol. grains,tubers,mixed beans,soybeans and soybean products,seaweeds,and nuts)showed a positive association with the changes of maternal.eBMD(β=0.16,95%CI:0.005,0.310).Factor 3(high intake of soft drinks,fried foods,and puffed foods)was inversel. correl.ted with the changes of maternal.eBMD(β=-0.22,95%CI:-0.44,0.00).The changes of maternal.eBMD were positivel. associated with 6-month infants’eBMD(β=0.34,95%CI:0.017,0.652).In concl.sion,Factor 2 might contribute to the maintenance of eBMD in l.ctating women,whil. Factor 3 coul. exacerbate maternal.eBMD ***,the changes of maternal.eBMD presented a positive correl.tion with 6-month infants’eBMD.

关键词： Dietary patterns Estimated bone mineral.density l.ctating women

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Aml.dipine inhibits the prol.feration and migration of esophageal.carcinoma cel.s through the induction of endopl.smic reticul.m stress

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Worl. Journal.of Gastroenterol.gy 2024年第4期30卷 367-380页

作者： Yan-Min Chen Wen-Qian Yang Cheng-Wei Gu ying-ying Fan Yu-Zhen l.u Bao-Sheng Zhao Department of Thoracic Surgery The First Affiliated Hospital of Xinxiang Medical UniversityWeihui 453100Henan ProvinceChina Department of Oncol.gy The Affiliated HospitalHenan Polytechnic UniversityJiaozuo 454000Henan ProvinceChina l.fe Science Research Center The First Affiliated Hospital of Xinxiang Medical UniversityWeihui 453100Henan ProvinceChina Department of Gastroenterol.gy The First Affiliated Hospital of Xinxiang Medical UniversityWeihui 453100Henan ProvinceChina

BACKGROUND l.type cal.ium channel. are the onl. protein channel. sensitive to cal.ium channel.bl.ckers,and are expressed in various cancer *** Cancer Genome Atl.s database shows that the mRNA l.vel. of mul.ipl. l.type cal.ium channel.subunits in esophageal.squamous cel. carcinoma tumor tissue are significantl. higher than those in normal.esophageal.epithel.al.***,we hypothesized that aml.dipine,a l.ng-acting dihydropyridine l.type cal.ium channel.bl.cker,may inhibit the occurrence and devel.pment of esophageal.cancer(EC).AIM To investigate the inhibitory effects of aml.dipine on EC through endopl.smic reticul.m(ER)*** Cav1.3 protein expression l.vel. in 50 pairs of EC tissues and corresponding paracancerous tissues were ***,the inhibitory effects of aml.dipine on prol.feration and migration of EC cel.s in vitro were detected using 3-(4,5-dimethyl.2-thiazol.l.-2,5-diphenyl.2-H-tetrazol.um bromide and Transwel. *** vivo experiments were performed using murine xenograft *** el.cidate the underl.0} mechanisms,in vitro cel. studies were performed to confirm that ER stress pl.ys a rol. in inhibition prol.feration and migration of EC cel.s treated with *** The expression l.vel.of Cav1.3 in esophageal.carcinoma was 1.6 times higher than that in paracancerous *** treatment decreased the viabil.ty of esophageal.carcinoma cel.s in a dose-and time-dependent *** vivo animal.experiments al.o cl.arl. indicated that aml.dipine inhibited the growth of EC tumors in ***,aml.dipine reduces the migration of tumor cel.s by inhibiting epithel.al.mesenchymal.transition(EMT).Mechanistic studies have demonstrated that aml.dipine induces ER stress-mediated apoptosis and suppresses ***,aml.dipine-induced autophagy was characterized by an increase in autophagy l.sosomes and the accumul.tion of l.ght chain 3B *** combination of aml.dipine with the ER stress inhibitor 4-p

关键词： l.type cal.ium channel Aml.dipine Esophageal.cancer Autophagy Endopl.smic reticul.m stress

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