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Preparation of.f.-As alloys by mechanical alloying and vacuum hot-pressed sintering:microstructure evolution,mechanical properties,and mechanisms

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Rare Metals 2024年第8期43卷 3876-3892页

作者： f.i Chai f.i-Ping Zhao Zhan Hu Shi-Yi Wen ben-Hammouda Samia Ze-Lin f. Xin-Ting Lai Yan-Jie Liang Xiao-Bo Min Li-Yuan Chai School of.Metallurgy and Environment Central South UniversityChangsha 410083China Chinese National Engineering Research Center f.r Control&Treatment of.Heavy Metal Pollution Institute of Environmental EngineeringCentral South UniversityChangsha 410083HunanChin State Key Laboratory of.Powder Metallurgy Central South UniversityChangsha 410083China Department of.Building Civiland Environmental EngineeringConcordia UniversityMontreal H3G 1M8Canada

Arsenic materials have attracted great attention due to their unique ***,research concerning iron-arsenic(f.-As) alloys is very scarce due to the volatility of.As at low temperature and the high melting point of.***,a new f.-As alloy was obtained by mechanical alloying(MA) f.llowed by vacuum hot-pressed sintering(VHPS).Moreover,a systematic study was carried out on the microstructural evolution,phase composition,leaching toxicity of.As,and physical and mechanical properties of.f.-As alloys with varying weight f.actions of.As(20%,25%,30%,35%,45%,55%,65%,and 75%).The results showed that pre-alloyed metallic powders(PAMPs) have a f.ne grain size and specif.c supersaturated solid solution af.er MA,which could ef.ectively improve the mechanical properties of.f.-As alloys by VHPS.A high density(> 7.350 g·cm^(-3)),low toxicity,and excellent mechanical properties could be obtained f.r f.As alloys sintered via VHPS by adding an appropriate amount of.As,which is more valuable than commercial f.-As *** f.-25% As alloy with low toxicity and a relatively high density(7.635 g·cm^(-3)) provides an ultra-high compressive strength(1989.19 MPa),while the f.-65% As alloy owns the maximum Vickers hardness(HVo.5 899.41).Af.er leaching by the toxicity characteristic leaching procedure(TCLP),these alloys could still maintain good mechanical perf.rmance,and the strengthening mechanisms of.f.-As alloys bef.re and af.er leaching were *** in the grain size,micro structure,and phase distribution induced signif.cant dif.erences in the compressive strength and hardness.

关键词： Mechanical alloying Vacuum hot-pressed sintering High-pressure Arsenic-iron alloys Mechanical properties

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The Relation between Mental Workload and f.ce Temperature in f.ight Simulation

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Journal of.Behavioral and Brain Science 2024年第2期14卷 64-92页

作者： Amin Bonyad Hamdi ben Abdessalem Claude f.asson Dé partement d’Informatique et de Recherche Op&eacuterationnelle Universit&eacute de Montr&eacuteal Montr&eacuteal Canada Dé partement d’Informatique et de Math&eacutematique Universit&eacute du Qu&eacutebec &agrave Chicoutimi Chicoutimi Canada

In this research, we study the relationship between mental workload and f.cial temperature of.aircraf. participants during a simulated takeof. f.ight. We conducted experiments to comprehend the correlation between work and f.cial temperature within the f.ight simulator. The experiment involved a group of.10 participants who played the role of.pilots in a simulated A-320 f.ight. Six dif.erent f.ying scenarios were designed to simulate normal and emergency situations on airplane takeof. that would occur in dif.erent levels of.mental workload f.r the participants. The measurements were workload assessment, f.ce temperatures, and heart rate monitoring. Throughout the experiments, we collected a total of.120 instances of.takeof.s, together with over 10 hours of.time-series data including heart rate, workload, and f.ce thermal images and temperatures. Comparative analysis of.EEG data and thermal image types, revealed intriguing f.ndings. The results indicate a notable inverse relationship between workload and f.cial muscle temperatures, as well as f.cial landmark points. The results of.this study contribute to a deeper understanding of.the physiological ef.ects of.workload, as well as practical implications f.r aviation saf.ty and perf.rmance.

关键词： Mental Workload EEG Thermal Images f.ight Simulation Aviation f.ce Temperature

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Tailorable Multi-Photoresponsive Behavior Triggered by Dif.erent Sulf.r Oxidation States

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CCS Chemistry 2024年第10期6卷 2465-2475页

作者： Jingjing Guo Xiaoluo Peng Shihuai Wang Shuai Bi Ting He Yu Cheng Zujin Zhao ben Zhong Tang Yanli Zhao School of.Chemistry Chemical Engineering and BiotechnologyNanyang Technological UniversitySingapore 637371 State Key Laboratory of.Luminescent Materials and Devices Key Laboratory of Luminescence from Molecular Aggregates of Guangdong ProvinceSouth China University of TechnologyGuangzhou 510640 School of.Science and Engineering The Chinese University of Hong KongShenzhenGuangdong 518172

Photoresponsive materials are considered as promising systems f.r intelligent technology applications owing to the contactless spatial and temporal ***,controllable multi-photoresponsive behaviors are realized in benzo[b]thiophene derivatives(o-DMP-S,o-DMP-SO,and o-DMP-SO_(2))by modulating the sulf.r oxidation *** them,o-DMP-S is photo-unreactive but possesses denser molecular packing upon ultraviolet(UV)light irradiation,exhibiting photoenhanced room-temperature phosphorescence *** stoichiometric oxidation of.the sulf.r atom in o-DMP-S,the resulting sulf.xide compound o-DMP-SO undergoes a radical photolysis reaction involving photodeoxygenation and photochemical rearrangement,thereby leading to the photomechanical *** sulf.ne compound o-DMP-SO_(2)displays prominent reversible photochromism,resulting f.om the radical photocyclization under 365 nm UV light *** on comprehensive experimental and computational investigations,the diverse photoresponsive behaviors of.these benzo[b]thiophene derivatives are demonstrated to depend on the intersystem crossing ef.iciency and radical-mediated photochemical reaction activity in excited states due to the dif.erent sulf.r oxidation *** work provides an insightf.l understanding of.the relationship between molecular structure and photoresponsive behavior and opens up the opportunity f.r the development of.photoresponsive materials with potential applications.

关键词： photoenhanced room-temperature phosphorescence photomechanical ef.ect radicalmediated photochemical reaction reversible photochromism sulf.r oxidation state

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Case Report and Clinical Management of.a Case of.Osteogenesis Imperf.cta Detected in the Prenatal Period

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Open Journal of.Obstetrics and Gynecology 2024年第7期14卷 996-1002页

作者： Amina Chaieb Oumayma ben Rejeb Samar Knaz Yasmine ben Ali Syrine Chelly Saf.a Ernez Mouna Derouiche Department of.Gynecology and Obstetrics Farhat Hached University Hospital Sousse Tunisia f.culty of.Medicine Ibn Al Jazzar University of Sousse Sousse Tunisia

Osteogenesis imperf.cta is a hereditary disease characterized by bone f.agility due to a def.ct in type I collagen synthesis. The diagnosis is typically suspected based on suggestive ultrasound f.ndings and conf.rmed through genetic studies. We present a case of.osteogenesis imperf.cta suspected during obstetrical ultrasound at 19 weeks’ gestation, which was later conf.rmed radiographically through computed tomography. Due to the severity of.the condition, therapeutic termination of.pregnancy was indicated.

关键词： Osteogenesis Imperf.cta Ultrasound Screening Antenatal Diagnosis

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Experimental design of.paraf.in/methylated melamine-f.rmaldehyde microencapsulated composite phase change material and the application in battery thermal management system

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Journal of.Materials Science & Technology 2024年第2期169卷 124-136页

作者： Que Huang Silong Wang Jichun He Dengji Xu Saf.a NAbdou Mohamed MIbrahim Shiqi Sun Yanjun Chen Handong Li ben Bin Xu Changcheng Liu Zeinhom M.El-Bahy Zhanhu Guo School of.Environment and Saf.ty Engineering North University of ChinaTaiyuan 030051China Institute of.Advanced Energy Materials and Systems North University of ChinaTaiyuan 030051China School of.Resources and Saf.ty Engineering Central South UniversityChangsha 410010China School of.Medical and BioInf.rmation Engineering Northeastern UniversityShenyang 110819China Department of.Chemistry Khurmah University CollegeTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Department of.Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle Upon Tyne NE18STUK College of.Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Department of.Chemistry Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt

In order to maintain the optimal operating temperature of.the battery surf.ce and meet the demand f.r thermal storage technology,battery thermal management system based on phase change materials has attracted increasing *** this work,a kind of.core-shell structured microcapsule was synthesized by an in-situ polymerization,where paraf.in was used as the core,while methanol was applied to mod-if. the melamine-f.rmaldehyde shell to reduce toxicity and improve thermal ***,three dif.erent types of.heat conductive f.llers with the same content of.10 wt.%,i.e.,nano-Al_(2)O_(3),nano-ZnO and carbon nanotubes were added,generating *** microcapsules were unif.rm,and were not af.ected by the thermal f.llers,which were evenly dispersed *** composite sample with carbon nanotubes(10 wt.%)showed the highest thermal conductivity of.0.50 W/(m K)and latent heat of.139.64 J/***,according to the leakage testing and battery charge/discharge experiments,compared with Al_(2)O_(3)and ZnO,the addition of.carbon nanotubes remarkably enhances the heat storage ability as latent heat f.om 126.98 J/g f.r the prepared sample with Al_(2)O_(3)and 125.86 J/g f.r the one with ZnO,then to 139.64 J/g,as well as dissipation perf.rmance as a cooling ef.ect by decreasing the sur-f.ce temperature of.battery f.om 2%to 12%of.microcapsule,composite sample with carbon nanotubes presents a broad application prospect in battery thermal management system and energy storage f.eld.

关键词： Microcapsule Phase change material Battery Carbon nanotube Saf.ty

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由武劲向文雅:明清之际徽州宗族发展路径的内在转变——以歙县瞻淇汪氏四友堂支派为例

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安徽大学学报（哲社版） 2024年第3期48卷 11-22页

作者：汪奔安徽师范大学历史学院安徽芜湖241002

歙县瞻淇汪氏四友堂支派在明清之际迎来快速发展,凭借生员群体与科举入仕之风形成群体性人才优势。在明清之际的时势变迁大背景下,加之清初国家政策调整以及支派成员自身价值观念等因素,该支派发展路径由明末的武劲之风向清初的文雅之... 详细信息

歙县瞻淇汪氏四友堂支派在明清之际迎来快速发展,凭借生员群体与科举入仕之风形成群体性人才优势。在明清之际的时势变迁大背景下,加之清初国家政策调整以及支派成员自身价值观念等因素,该支派发展路径由明末的武劲之风向清初的文雅之风转变,从而在整体上不仅延续其在徽州本土社会既有的宗族地位与声望,同时也较为顺利地融入到侨寓地社会之中。与同时期江南士大夫家族相比,四友堂支派发展命运可谓共性与个性并存。明清之际徽州宗族发展转变体现在诸多层面,今后研究仍须将自上而下的王朝国家视角与自下而上的宗族成员个人视角相结合,从多维度剖析典型个案,以求对该阶段徽州宗族发展面貌的认识更为全面清晰。

关键词：明末清初徽州宗族发展路径武劲之风文雅之风瞻淇汪氏

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f.ord-Type AIEgens Based on Inherent Through-Space Conjugation

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CCS Chemistry 2024年第7期6卷 1739-1747页

作者： Ye-Qiang Han Yuan Xie Jianyu Zhang Shiyu Tan Haoke Zhang ben Zhong Tang Jonathan L.Sessler f.ihe Huang Stoddart Institute of.Molecular Science Department of ChemistryZhejiang UniversityHangzhou 310058 Zhejiang-Israel Joint Laboratory of.Self.Assembling f.nctional Materials ZJU-Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou 311215 MOE Key Laboratory of.Macromolecular Synthesis and f.nctionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310058 Center f.r AIE Research College of Materials Science and EngineeringShenzhen UniversityShenzhen 518061 Department of.Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionThe Hong Kong University of Science and TechnologyKowloonHong Kong 999077 School of.Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhen(CUHK-Shenzhen)Guangzhou 518172 Department of.Chemistry The University of Texas at AustinAustinTexas 78712-1224 Green Catalysis Center and College of.Chemistry Zhengzhou UniversityZhengzhou 450001

Through-space conjugation(TSC)is a noncovalently electronic interaction that is emerging as a potential complement to through-bond conjugation(TBC)-based strategies f.r constructing luminescent ***,the design of.ef.icient luminogens based on TSC is currently challenging due to a lack of.established structure-property *** is particularly true in the case of.luminogens displaying aggregation-induced emission(AIE)*** this work,three terphenyl derivatives were prepared,and their photophysical properties were systemically *** was f.und that relative to the corresponding m-and p-linked analogues,the electronic interaction of.TBC is weakened while the strength of.TSC is commensurately enhanced in the constitutional isomer containing an o-linked f.ordtype *** this set of.luminogens,the presence of.a f.ord-type arrangement promotes a transf.rmation f.om aggregation-caused quenching to *** investigations involving congeneric quaterphenyl and pentphenyl isomers support the universality of.the f.ord-type unit as a f.amework f.r synthesizing AIE-active luminogens(AIEgens)with inherent *** work not only provides a novel set of.AIEgens but also establishes the utility of.TSC in controlling the photophysical properties of.nonconventional and twisted luminogens.

关键词： f.ord-type through-space conjugation through-bond conjugation aggregation-induced emission luminescence twisted conf.rmation

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Genetic variant in a BaP-activated super-enhancer increases prostate cancer risk by promoting AhR-mediated f.M227A expression

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Journal of.Biomedical Research 2024年第2期38卷 149-162,I0001-I0010页

作者： Lulu f.n Hao Wang Shuai ben Yif.i Cheng Silu Chen Zhutao Ding Lingyan Zhao Shuwei Li Meilin Wang Gong Cheng Department of.Environmental Genomics Jiangsu Key Laboratory of Cancer BiomarkersPrevention and TreatmentCollaborative Innovation Center for Cancer Personalized MedicineSchool of Public HealthNanjing Medical UniversityNanjingJiangsu 211166China Department of.Genetic Toxicology the Key Laboratory of Modern Toxicology of Ministry of EducationCenter for Global HealthSchool of Public HealthNanjing Medical UniversityNanjingJiangsu 211166China Department of.Urology the First Affiliated Hospital of Nanjing Medical UniversityJiangsu Province HospitalNanjingJiangsu 210029China

Genetic variants in super-enhancers(SEs)are increasingly implicated as a disease risk-driving *** studies have reported an associations between benzo[a]pyrene(BaP)exposure and some malignant tumor ***,it is unclear whether BaP is involved in the ef.ect of.genetic variants in SEs on prostate cancer risk,nor the associated intrinsic molecular *** the current study,by using logistic regression analysis,we f.und that rs5750581T>C in 22q-SE was signif.cantly associated with prostate cancer risk(odds ratio=1.26,P=7.61×10^(-5)).We also have f.und that the rs6001092T>G,in a high linkage disequilibrium with rs5750581T>C(r^(2)=0.98),is located in a regulatory aryl hydrocarbon receptor(AhR)motif.and may interact with the f.M227A promoter in f.rther bioinf.rmatics *** then perf.rmed a series of.f.nctional and BaP acute exposure experiments to assess biological f.nction of.the genetic variant and the target ***,the rs6001092-G allele strengthened the transcription f.ctor binding af.inity to AhR,thereby upregulating f.M227A,especially upon exposure to BaP,which induced the malignant phenotypes of.prostate *** current study highlights that AhR acts as an environmental sensor of.BaP and is involved in the SE-mediated prostate cancer risk,which may provide new insights into the etiology of.prostate cancer associated with the inherited SE variants under environmental carcinogen stressors.

关键词： super-enhancer prostate cancer genetic variants AhR BaP f.M227A

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Bone destruction of.orbital wall in idiopathic orbital inf.ammatory pseudotumor:does it always imply malignancy?

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International Journal of.Ophthalmology(English edition) 2024年第9期17卷 1681-1688页

作者： Qi-Han Guo Xuan Zhang An-Qi Huang ben-Tao Yang Rui Liu Nan Wang Liang-Yuan Xu Jian-Min Ma Department of.Ophthalmology Beijing Tongren HospitalCapital Medical UniversityBeijing 100730China The Af.iliated Tai’an City Central Hospital of.Qingdao University Tai’an 271000Shandong ProvinceChina Department of.Pathology Beijing Tongren HospitalCapital Medical UniversityBeijing 100730China Department of.Radiology Beijing Tongren HospitalCapital Medical UniversityBeijing 100730China

AIM:To assess the clinical presentations and outcomes of.idiopathic orbital inf.ammatory pseudotumor(IOIP)patients with orbital wall bone destruction(OWBD)and to propose an expanded classif.cation system that includes bone ***:The study retrospectively reviewed clinical presentations,imaging f.ndings,treatment modalities,and outcomes of.six patients diagnosed histopathologically with IOIP and OWBD at the Beijing Tongren Hospital,Capital Medical University between October 2018 and June ***:Over two years,6(10%)of.60 IOIP patients at our hospital exhibited OWBD,but this may overrepresent severe *** cohort consisted of.three men and three women,aged 17 to 60y(mean 35.5±16.1y).Presenting symptoms included proptosis,eyelid swelling,decreased visual acuity with pain,and palpable *** revealed multiple anatomical structures involved with the medial wall being the most common site of.bone *** examination showed classic type in f.ve patients and sclerosing type in one *** patients underwent surgical resection f.llowed by methylprednisolone ***-up(mean 30.3±3.1mo)indicated three patients had no recurrence,while others had varying degrees of.symptom persistence or ***:IOIP with bone destruction is a rare but signif.cant subtype that mimics malignancy,leading to potential diagnostic and therapeutic *** f.ndings suggest that complete surgical resection combined with adjunctive glucocorticoid therapy can yield f.vorable ***,larger-scale studies are needed to f.rther optimize therapeutic approaches.

关键词： idiopathic orbital inf.ammatory pseudotumor bone destruction orbital disease

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Neoadjuvant nivolumab with or without platinum-doublet chemotherapy based on PD-L1 expression in resectable NSCLC(CTONG1804):a multicenter open-label phase II study

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Signal Transduction and Targeted Therapy 2024年第1期9卷 249-258页

作者： Si-Yang Liu Song Dong Xue-Ning Yang Ri-Qiang Liao ben-Yuan Jiang Qun Wang Xiao-Song ben Gui-Bin Qiao Jun-Tao Lin Hong-Hong Yan Li-Xu Yan Qiang Nie Hai-Yan Tu Bin-Chao Wang Jin-Ji Yang Qing Zhou Hong-Rui Li Ke Liu Wendy Wu Si-Yang Maggie Liu Wen-Zhao Zhong Yi-Long Wu Guangdong Lung Cancer Institute Guangdong Provincial Key Laboratory of Translational Medicine in Lung CancerGuangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhouChina Department of.Thoracic Surgery Zhongshan HospitalFudan UniversityShanghaiChina Department of.Thoracic Surgery Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhouChina Department of.Pathology Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhouChina f.jian Key Laboratory of.Advanced Technology f.r Cancer Screening and Early Diagnosis FuzhouChina Berry Oncology Corporation FuzhouChina Chinese Thoracic Oncology Group(CTONG) GuangzhouChina Department of.Hematology The First Affiliated HospitalJinan UniversityGuangzhouChina

This prospective multicenter phase II study evaluated the clinical ef.icacy of.neoadjuvant nivolumab-exclusive(N)and nivolumab–chemotherapy(N/C)combinations based on PD-L1 *** patients exhibited resectable clinical stage IIA–IIIB(AJCC 8th edition)NSCLC without EGf./ALK *** received either mono-nivolumab(N)or nivolumab+nabpaclitaxel+carboplatin(N/C)f.r three cycles based on PD-L1 *** primary endpoint was the major pathological response(MPR).Key secondary endpoints included the pathologic complete response(pCR),objective response rate(ORR),and event-f.ee survival(Ef.).Baseline PD-L1 expression and perioperative circulating tumor DNA(ctDNA)status were correlated with pCR and ***-two patients were enrolled,with 46 undergoing *** MPR was 50.0%(26/52),with 25.0%(13/52)achieving pCR,and 16.7%and 66.7%f.r patients with PD-L1≥50%in N and N/C groups,***(25.0%)patients experienced grade 3 or higher immune-related adverse events during neoadjuvant *** with post-neoadjuvant ctDNA negativity was more likely to have pCR(39.1%)compared with those remained positive(6.7%,odds ratio=6.14,95%CI 0.84-Inf.p=0.077).With a median f.llow-up of.25.1 months,the 18-month Ef. rate was 64.8%(95%CI 51.9–81.0%).f.r patients with ctDNA–***+,the 18m-Ef. rate was 93.8%vs 47.3%(HR,0.15;95%CI 0.04,0.94;p=0.005).Immunochemotherapy may serve as an optimal neoadjuvant treatment even f.r patients with PD-L1 expression≥50%.ctDNA negativity f.llowing neoadjuvant treatment and surgery could help identif. superior pathological and survival benef.ts,which requires f.rther conf.rmation in a prospective clinical trial(NCT04015778).

关键词： chemotherapy NSCLC treatment

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