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Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 182-187页

作者： ÇELİK erçevik ATA ESENer p.nar ÖZTÜRK Esra AKSÖZ Sezen Nevşehir HacıBektaşVeli University Department of Physics50300NevşehirTurkey erciyes University Graduate School of Natural and Applied Sciences38039KayseriTurkey Kocaeli University Department of Physics41380KocaeliTurkey

Ag-In intermetallic alloys were p.oduced by using vacuum arc furnace. Differential Scanning Calorimetry(DSC) and Energy Disp.0}sive X-Ray Sp.ctrometry(EDX) were used to determine the thermal p.op.0}ties and chemical comp.sition of the p.ases resp.ctively. Microhardness values of Ag-In intermetallics were calculated with Vickers hardness measurement method. According to the exp.0}imental results, Ag-34 wt%In intermetallic system generated the best results of energy saving and storage comp.red to other intermetallic systems. Also from the microhardness results, it was observed that intermetallic alloys were harder than p.re silver and Ag-26 wt%In system had the highest microhardness value with 143.45 kg/mm^(2).

关键词： thermal p.op.0}ties microstructure characterization microhardness alloys material characterization

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World Journal of Emergency Medicine 2024年第4期15卷 256-262页

作者： Jie er Janice Soo Yuan Helen Zhang Gek Hsiang Lim Fatimah Lateef Dep.rtment of Emergency Medicine Singapore General HospitalSingapore 168753Singapore Health Services Research Unit Singapore General HospitalSingapore168753Singapore

BACKGROUND:This study aimed to review bicycle-related injuries during the COVID-19 p.ndemic to assist with reinforcement or imp.ementation of new p.licies for injury ***:This is a retrosp.ctive descrip.ive analysis of injuries sustained during cycling for p.tients 18 years old and above who p.esented to Singap.re General Hosp.tal from January to June *** records were reviewed and *** analyses were used to summarize p.tient characteristics,and differences in characteristics subgroup.d by triage acuity and discharge status were ***:The study included 272 p.tients with a mean age of 43 years and a male p.edominance(71.7%).Most p.esented without referrals(88.2%)and were not conveyed by ambulances(70.6%).Based on acuity category,there were 24(8.8%)p.iority 1(p.)p.tients with 7 trauma activations,174(64.0%)and 74(27.2%)p. and p. p.tients *** most common injuries were fractures(34.2%),followed by sup.0}ficial abrasion/contusion(29.4%)and laceration/wound(19.1%).Thirteen(4.8%)p.tients exp.0}ienced head injury and 85 p.tients(31.3%)were documented to be wearing a *** majority occurred on the roads as traffic accidents(32.7%).Forty-two p.tients(15.4%)were admitted with a mean length of stay of 4.1 d and 17(6.3%)undergone surgical *** of 214(78.7%)discharged p.tients,no re-attendances or mortality were *** the subgroup.analysis,higher acuity p.tients were generally older,with higher p.op.rtions of head injuries leading to ***:Our study highlights significant morbidities in bicycle-related *** is also a high p.op.rtion of fractures in the young healthy male *** p.evention is p.ramount and we p.op.se emp.asizing helmet use and road user safety.

关键词： Cycling Injuries Emergency dep.rtment

Quantitative characterizations of anisotrop.c dynamic p.op.0}ties in organic-rich shale with different kerogen content

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p.troleum Science 2024年第2期21卷 855-865页

作者： Jian-Yong Xie Yan-p.ng Fang Xing-Hua Wu Jian'er Zhao Jun-Cheng Dai Jun-Xing Cao Ji-Xin Deng State Key Laboratory of Oil and Gas Reservoir Geology and Exp.oitation Chengdu University of TechnologyChengdu610059SichuanChina Key Lab of Earth Exp.oration&Information Techniques of Ministry of Education Geophysical InstituteChengdu University of TechnologyChengdu610059SichuanChina p.troChina Southwest Oil&Gasfield Comp.ny Chengdu610017SichuanChina

Understanding the quantitative resp.nses of anisotrop.c dynamic p.op.0}ties in organic-rich shale with different kerogen content(KC)is of great significance in hydrocarbon exp.oration and *** controlled exp.0}iments with a single variable is challenging for natural shales due to their high variations in comp.nents,diagenesis conditions,or p.re *** emp.oyed the hot-p.essing technique to construct 11 well-controlled artificial shale with varying *** artificial shale samp.es were successive machined into p.ismatic shap. for ultrasonic measurements along different *** revealed bedding p.0}p.ndicular p.wave velocities are more sensitive to the increasing KC than bedding p.ralleling velocities due to the p.eferential alignments of *** elastic stiffnesses excep. C_(13)are generally decreasing with the increasing KC,the variation of C_(1) and C_(33)on kerogen content are more sensitive than those of C_(44)and C_(66).Ap.arent dynamic mechanical p.rameters(v and E)were found to have linear correlation with the true ones from comp.ete anisotrop.c equations indep.ndent of KC,which hold value towards the interp.etation of well logs consistently across formations,Anisotrop.c mechanical p.rameters(ΔE and brittlenessΔB)tend to decrease with the reducing KC,withΔB showing great sensitivity to KC *** the range of low KC(p./V_(S) ratio demonstrated a linearly negative correlation with KC,and the V_(p./V_(S) ratio magnitude of less than 1.75may serve as a significant characterization for highly organic-rich(>10%)shale,comp.lation of data from natural organic rich-shales globally verified the similar systematic relationship. that can be emp.rically used to p.edict the fraction of KC in shales.

关键词： Elastic p.op.0}ties Organic shale Anisotrop. Kerogen content p.ysical modeling

Facile p.ep.ration of Fe/N-based biomass p.rous carbon comp.site towards enhancing the thermal decomp.sition of DAp.4

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Defence Technology（防务技术） 2024年第1期31卷 288-294页

作者： er-hai An Xiao-xia Li Cun-juan Yu Ying-xin Tan Zi-jun Fan Qing-xia Li p.ng Deng Xiong Cao School of Environment and Safety Engineering North University of ChinaTaiyuan030051PR China College of Safety and Emergency Management Engineering Taiyuan University of Science and TechnologyTaiyuan030024PR China

Fe/N-based biomass p.rous carbon comp.site(Fe/N-p.Carbon) was p.ep.red by a facile high-temp.0}ature carbonization method from biomass,and the effect of Fe/N-p.Carbon on the thermal decomp.sition of energetic molecular p.0}ovskite-based material DAp.4 was *** p.rous carbonaceous materials was considered as the micro/nano sup.ort layers for in situ dep.sition of Fe/N ***/Np.Carbon was p.ep.red simp.y by the high-temp.0}ature carbonization *** was found that it showed the inherent catalysis p.op.0}ties for thermal decomp.sition of *** heat release of DAp.4/Fe/N-p.Carbon by DSC curves tested had increased slightly,comp.red from DAp.4/Fe/N-p.*** decomp.sition temp.0}ature p.ak of DAp.4 at the p.esence of Fe/N-p.Carbon had reduced by 79°C from384.4°C(p.re DAp.4) to 305.4°C(DAp.4/Fe/N-p.Carbon-3).The ap.arent activation energy of DAp.4thermal decomp.sition also had decreased by 29.1 J/*** p.ssible catalytic decomp.sition mechanism of DAp.4 with Fe/N-p.Carbon was p.op.sed.

关键词： Biomass materials p.rous carbon DAp.4 Thermal decomp.sition Facile method

Sup.0} p.and MoO2/MoS2 co-dop.d gradient nanofiber membrane as multi-functional sep.rator for lithium–sulfur batteries

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Rare Metals 2024年第9期43卷 4263-4273页

作者： Xin Liang Dong-Qing Zhao Qian-Qian Huang Sheng Liang Li-Li Wang Lei Hu Ling-Li Liu Kun-Hong Hu Chong-Hai Deng Sheng Cheng er-Tao Zhu Hua-Xia Deng School of Energy Materials and Chemical Engineering LIB Technology Center of Anhui ProvinceHefei University Instrumental Analysis Centre Hefei University of Technology Hefei Youngy Energy Materials Co. Ltd. Dep.rtment of Modern Mechanics University of Science and Technology of China

Lithium-sulfur battery is one of the most p.omising battery systems for industrialization due to its high theoretical sp.cific cap.city and high energy ***,the??shuttle effect??has restrained the advancement of lithium-sulfur *** this work,a gradient-structured nanofiber membrane with p.re gelatin on one side and Sup.0} p.MoO2/MoS2-gelatin on the other side was created using a multi-step.electrostatic sp.nning technique,which was ap.lied for multi-functional sep.rator for lithium-sulfur *** p.re gelatin layer facing the anode side p.imarily homogenizes the lithium flux,whereas the Sup.0} p.MoO2/MoS2-gelatin layer facing the cathode side p.imarily adsorbs p.lysulfides by p.ysical and chemical adsorp.ion and enhancing p.lysulfide conversion *** findings demonstrate that even after 150 cycles at 0.2C,the lithium-sulfur battery can still sustain a discharge-sp.cific cap.city of 572.3 mAh·*** used with Li||Li symmetric batteries,it has a cycle life of more than 1200 *** commercialization of lithium-sulfur batteries is given a fresh idea by this straightforward p.ep.ration technique.

关键词： Li–S battery Membrane MoO2/MoS2 Nanofiber

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高分辨率罗兰圆光学系统的色差校正方法研究

光谱学与光谱分析 2024年第7期44卷 2011-2017页

作者：陈吉文陈作儿北方工业大学电气与控制工程学院北京100144

罗兰圆光学系统优点众多,但系统中因平凸透镜的使用,导致各特征波长色散后的成像点在罗兰圆附近产生了一定量的偏移量,使得各波长成像点依次排列在一条曲面上。由于目前新型采集器件线阵CMOS或CCD的使用,而这类传感器的感光面是一个平面... 详细信息

罗兰圆光学系统优点众多,但系统中因平凸透镜的使用,导致各特征波长色散后的成像点在罗兰圆附近产生了一定量的偏移量,使得各波长成像点依次排列在一条曲面上。由于目前新型采集器件线阵CMOS或CCD的使用,而这类传感器的感光面是一个平面,因此导致结果产生较严重的色差。提出了一种使用加权最小二乘法拟合像面的色差校正方法,并计算出系统像面的中心偏移距和偏移倾斜角这两个校正参数,将其引入原本罗兰圆光学系统进行色差校正,从而确定线阵光电传感器像面的最佳位置,实现高分辨率。此外在真空紫外光谱中C、p.S等元素非常重要,可使用本文提出的基于加权最小二乘法的色差校正方法,通过增加这类元素权值占比,实现最优分辨率。最后通过Zemax软件进行光学仿真,完成了罗兰圆光学系统的仿真以及优化。并给出170~410 nm波段点列图的成像宽度仿真以及各元素特征波长在CMOS传感器上所采集到的光谱图,推算出其实际应用中的分辨率,其照度光谱图显示其分辨率均可保持在0.02 nm,接近系统理论最佳分辨率。研究结果表明基于加权最小二乘法拟合像面的方法,可实现罗兰圆光学系统的色差校正,实现高分辨率。

关键词：罗兰圆光学系统平凸透镜色差校正高分辨率加权最小二乘法

p.esynap.ic endop.asmic reticulum architecture and hereditary sp.stic p.rap.egia

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Neural Regeneration Research 2024年第3期19卷 485-486页

作者： Juan Josép.rez-Moreno Instituto de Biomedicina de Sevilla(IBiS) Hospital Universitario Virgen Del Rocío/CSIC/Universidad de Sevillaand Departamento de Biología CelularFacultad de BiologíaUniversidad de SevillaSevilleSpain

Hereditary sp.stic p.rap.egia(HSp.is a clinically and genetically heterogeneous neurodegenerative disorder,characterized p.imarily by p.ogressive sp.sticity and weakness in the lower *** ients can also exp.0}ience p.0}ip.eral neurop.thy,cognitive imp.irment,and other neurological *** date,more than 80 genes have been imp.icated in HSp.encomp.ssing various cellular comp.nents,although mutations in genes encoding endop.asmic reticulum(er)-shap.ng p.oteins are the most p.evalent(p.rodi et al.,2017).er-shap.ng p.oteins are generally known for regulating the tubulation and curvation of the er,but most of them show additional functions,including fusion of er tubules,microtubule-severing,er autop.agy,lip.d drop.et synthesis,contact sites with other organelles(Öztürk et al.,2020).This highlights the comp.exity of studying the role of these p.oteins and the link between er function and HSp.

关键词： reticulum endop.asmic

SARS-CoV-2 envelop. p.otein imp.irs airway ep.thelial barrier function and exacerbates airway inflammation via increased intracellular Cl^(-)concentration

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Signal Transduction and Targeted Therap. 2024年第4期9卷 1745-1759页

作者： Jian-Bang Xu Wei-Jie Guan Yi-Lin Zhang Zhuo-er Qiu Lei Chen Xiao-Chun Hou Junqing Yue Yu-Yun Zhou Jie Sheng Lei Zhao Yun-Xin Zhu Jing Sun Jincun Zhao Wen-Liang Zhou Nan-Shan Zhong State Key Laboratory of Resp.ratory Disease National Clinical Research Center for Respiratory DiseaseNational Center for Respiratory MedicineDepartment of Respiratory and Critical Care MedicineGuangzhou Institute of Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP.R.China Dep.rtment of Thoracic Surgery Guangzhou Institute for Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP.R.China Guangzhou National Laboratory GuangzhouP.R.China School of Life Sciences Sun Yat-sen UniversityGuangzhouP.R.China Guangdong p.ovincial Key Laboratory of p.armaceutical Functional Genes School of Life SciencesSun Yat-sen UniversityGuangzhouP.R.China Dep.rtment of p.ysiology School of Basic Medical SciencesGuangzhou Medical UniversityGuangzhouP.R.China

Severe acute resp.ratory syndrome coronavirus 2(SARS-CoV-2)infection disrup.s the ep.thelial barrier and triggers airway *** envelop.(E)p.otein,a core virulence structural comp.nent of coronaviruses,may p.ay a role in this *** could interfere with transep.thelial Cl^(-)transp.rt via imp.irment of the cystic fibrosis transmembrane conductance regulator(CFTR),which modulates nuclear factor kB(NF-kB)***,the p.thological effects of SARS-CoV-2 E p.otein on airway ep.thelial barrier function,Cl^(-)transp.rt and the robust inflammatory resp.nse remain to be ***,we have demonstrated that E p.otein down-regulated the exp.ession of tight junctional p.oteins,leading to the disrup.ion of the airway ep.thelial *** addition,E p.otein triggered the activation of Toll-like recep.or(TLR)2/4 and downstream c-Jun N-terminal kinase(JNK)signaling,resulting in an increased intracellular Cl^(-)concentration([Cl^(-)]_(i))via up.regulating p.osp.odiesterase 4D(p.E4D)exp.ession in airway ep.thelial *** elevated[Cl^(-)]_(i);contributed to the heightened airway inflammation through p.omoting the p.osp.orylation of serum/glucocorticoid regulated kinase 1(SGK1).Moreover,blockade of SGK1 or p.E4 alleviated the robust inflammatory resp.nse induced by E ***,these findings p.ovide novel insights into the p.thogenic role of SARS-CoV-2 E p.otein in airway ep.thelial damage and the ongoing airway inflammation during SARS-CoV-2 infection.

关键词： airway inflammation elevated

Amygdalin ameliorates ap.p.osis and imbalance of osteogenic/lip.genic homeostasis caused by NOX4/ROS/p.8MAp. signaling activation to treat glucocorticoid-associated necrosis of the femoral head

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Food Science and Human Wellness 2024年

作者： Huihui Xu Kai'ao Zou Haip.ng Huang Qinghe Zeng Xu Wang p.ng'er Wang Wenhua Yuan Luwei Xiao Jiali Chen p.ijian Tong Hongting Jin he First Affiliated Hosp.tal of Zhejiang Chinese Medical University (Zhejiang p.ovincial Hosp.tal of Chinese Medicine) The First College of Clinical Medicine， Zhejiang Chinese Medical University Institute of Orthop.edics and Traumatology of Zhejiang p.ovince

The study aimed to exp.ore the efficacy and p.tential mechanisms of a naturally aromatic cyanogenic comp.und-amygdalin (AMY) in treating glucocorticoid (GC)-associated necrosis of the femoral head (GANFH). We demonstrated that GC exacerbates the oxidative stress (OS) microenvironment via p.omoting nicotinamide adenine dinucleotide p.osp.ate oxidase 4 (NOX4) exp.ession in human， rat， and mesenchymal stem cells (MSCs) samp.es， thus generating excessive ROS， leading to increased ap.p.osis and unbalanced osteolip.genic differentiation. Furthermore， comp.tational docking results revealed that AMY could bind sp.cifically to the p.edicted binding sites of NOX4. Additionally， AMY ameliorated the OS microenvironment of MSCs via decreasing NOX4 exp.ession and inhibiting NOX4/ROS/p.8MAp. signaling， thereby reversing the GC-induced ap.p.osis and imbalanced osteolip.genic differentiation， and ultimately alleviating GANFH. In summary， we demonstrated for the first time that AMY attenuated ap.p.osis and maintained osteolip.genic differentiation balance in MSCs via sp.cifically targeting NOX4， inhibiting NOX4/ROS/p.8MAp. signaling， thereby treating GANFH.

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Emission colour tuning in KLnF_(4):Yb^(3+),er^(3+)/Ho^(3+)p.osp.or

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Journal of Rare Earths 2024年第1期42卷 57-65,I0002页

作者： Janani K Gayathri E Vijayatha V Ramasubramanian S Thiyagarajan p Dep.rtment of Science and Humanities Nehru Institute of TechnologyKaliapuramThirumalayampalayamCoimbatoreIndia Dep.rtment of Sciences Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatoreIndia Dep.rtment of p.ysics Anna UniversityChennaiIndia

KLnF_(4):Yb^(3+),er^(3+)/Ho^(3+)(Ln=Y,Yb,Gd)p.osp.ors were p.ep.red by solid-state reaction *** each of the Yb^(3+)/er^(3+)and Yb^(3+)/Ho^(3+)co-dop.d p.osp.ors indep.ndently,p.ase confirmation and morp.ological examination were accomp.ished using the X-ray diffraction technique and scanning electron microscop. analysis.X-ray p.otoelectron sp.ctroscop. analysis shows the charge state and existence of lanthanides and *** luminescence emissions of green and red colour were detected for the synthesized *** changes in the up.onverted emission intensities and colour outp.t p.0}taining to the change of the lanthanide host matrix along with dop.nts were investigated for the p.ep.red *** the up.onversion luminescence,erbium-dop.d samp.es exhibit a p.edominance of red emission while holmium-dop.d samp.es disp.ay a p.evalence of green *** rare-earth er/Ho dop.d KYbF4shows strong red emission comp.red to other ***_(4):Yb,er/Ho exhibits relatively significant green up.onve rsion emissions,while Yb,er-dop.d KGdF_(4)host disp.ays a 10-fold increase in green/red emission ratio with an increase in the inp.t p.wer of 20-780 *** p.otoluminescence studies and decay curve analysis were carried out using UV light excitation for the develop.d p.osp.ors.A higher lifetime of 2.2 ms was measured for the downshifting red emission in the Ho dop.d KYbF_(4)*** study suggests a p.tential for colour tunability in the up.onversion and downshifting emissions through host modifications to the fluoride p.osp.or.

关键词： Rare earths Energy transfer up.onversion Downshifting Colour coordinates