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空天技术 1990年第8期 53-60页

作者： t.l. Duffield 牛晓燕

介绍一种开发用于灵巧武器的低成本毫米波收发机的方法,此收发机由砷化镓单片毫米波集成电路组成,其中所有的有源元件均采用晶体管。

关键词：灵巧武器单片电路毫米波部件

Enhancing cryst.l.integrity and structural rigidity of CsPbBr_(3) nanoplat.l.ts to achieve a narrow colorsaturated blue emission

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light(Science & Applications) 2024年第5期13卷 985-997页

作者： Qianqian Huang Wenxu Yin Bo Gao Qingsen Zeng Dong Yao Hao Zhang Yinghe Zhao Weijia Zheng Jiaqi Zhang Xuyong Yang Xiaoyu Zhang Andrey l.Rogach Key laboratory of Automobile Materials MOE School of Materials Science&Engineeringand Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy MaterialsJilin UniversityChangchunChina. State Key laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchunChina. State Key laboratory of Materials Processing and Die&Mould technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanHubeiChina. Department of Chemistry University of VictoriaVictoriaBCCanada. Key laboratory of Advanced Display and System Applications of Ministry of Education Shanghai UniversityShanghaiChina. Department of Materials Science and Engineering and Centre for Functional Photonics(CFP)City University of Hong KongHong Kong S.A.RChina

Quantum-confined CsPbBr_(3) perovskites are promising blue emitters for ultra-high-definition displays,but their soft.l.ttice caused by highly ionic nature has a limited ***,we endow CsPbBr_(3) nanoplat.l.ts(NPls)with atomic cryst.l.like structural rigidity through proper surface engineering,by using strongly bound N-dodecylbenzene sulfonic acid(DBSA).A stable,rigid cryst.l.structure,as well as uniform,orderly-arranged surface of these NPls is achieved by optimizing intermediate reaction stage,by switching from molecular clusters to mono-octahedra,while interaction with DBSA resulted in formation of a Cs_(x)O monolayer shell capping the NPl *** a result,both structural and optical stability of the CsPbBr3 NPls is enhanced by strong covalent bonding of DBSA,which inhibits undesired phase transitions and decomposition of the perovskite phase potentially caused by ligand ***,rather small amount of DBSA ligands at the NPl surface results in a short inter-NPl spacing in their closely-packed films,which facilitates efficient charge injection and *** phot.l.minescence of the produced CsPbBr_(3) NPls is bright(nearly unity emission quantum yield)and peaks at 457 nm with an extremely narrow bandwidth of 3.7 nm at 80 K,while the bandwidth of the electroluminescence(peaked at 460 nm)also reaches a record-narrow value of 15 nm at room *** value corresponds to the CIE coordinates of(0.141,0.062.,which meets Rec.2.2. standards for ultra-high-definition displays.

关键词： temperature stability narrow

Novel insights into D-Pinit.l.based therapies:a link between tau hyperphosphorylation and insulin resistance

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Neural Regeneration Research 2024年第2期19卷 289-295页

作者： Dina Medina-Vera Antonio Jesús lópez-Gambero Juan Antonio Navarro Carlos Sanjuan Elena Baixeras Juan Decara Fernando Rodríguez de Fonseca Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND UGC Salud MentalMálagaSpain Facultad de Ciencias Universidad de MálagaMálagaSpain CIBER Enfermedades Cardiovasculares(CIBERCV) Hospital Universitario Virgen de la VictoriaUGC del CorazónMálagaSpain University of Bordeaux INSERMNeurocentre MagendieBordeauxFrance Euronutra S.l.Calle Johannes Kepler MálagaSpain Departamento de Bioquímica y Biología Molecular Facultad de MedicinaUniversidad de MálagaMálagaSpain

Alzheimer’s disease is a neurodegenerative disorder characterized by the amyloid accumulation in the brains of patients with Alzheimer’s *** pathogenesis of Alzheimer’s disease is mainly mediated by the phosphorylation and aggregation of tau *** the multiple causes of tau hyperphosphorylation,brain insulin resistance has generated much attention,and inosit.l. as insulin sensitizers,are currently considered candidates for drug *** present narrative review revises the interactions between these three elements:Alzheimer’s disease-tau-inosit.l.,which can eventually identify targets for new disease modifiers capable of bringing hope to the millions of people affected by this devastating disease.

关键词： Alzheimer’s disease cyclin-dependent kinase 5 diabetes D-Pinitol inosit.l. insulin resistance kinases phosphorylation PI3K/Akt tau

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热预处理对细胞分裂效率的影响

天津师范大学学报（自然科学版） 2009年第2期29卷 69-72页

作者：范嘉 HARRISON Susan t.l. 开普敦大学化学工程系

以发酵酵母为研究对象，采用超声波空蚀和高压均质方法对细胞进行机械细胞分裂，研究了热预处理对微生物细胞分裂效率的作用。结果表明：酵母悬浮液的温度经热预处理从室温（2.±1）℃上升到40-50℃时，达到相同程度的细胞分裂效率所需... 详细信息

以发酵酵母为研究对象，采用超声波空蚀和高压均质方法对细胞进行机械细胞分裂，研究了热预处理对微生物细胞分裂效率的作用。结果表明：酵母悬浮液的温度经热预处理从室温（2.±1）℃上升到40-50℃时，达到相同程度的细胞分裂效率所需的能量降低了；当酵母悬浮液的温度经热预处理上升到50℃时，蛋白质浓度达到最大值，蛋白质发生变质的热预处理温度≥52.。

关键词：发酵酵母微生物细胞分裂热预处理

Why Sustainable Porous Carbon Should be Further Explored as Radar-Absorbing Material? A Comparative Study with Different Nanostructured Carbons

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Journal of Renewable Materials 2024年第10期12卷 1639-1659页

作者： Alan F.N.Boss Manuella G.C.Munhoz Gisele Amaral-labat Rodrigo G.A.lima leonardo I.Medeiros Nila C.F.l.Medeiros Beatriz C.S.Fonseca Flavia l.Braghiroli Guilherme F.B.lenz e Silva Department of Met.l.urgical and Materials Engineering University of de São PauloAvenida Mello MoraesCidade UniversitáriaSão PauloSP 05508-030Brazil Coordination of Applied Research and technological Development National Institute for Space ResearchAvenida dos AstronautasJardim da GranjaSão Josédos CamposSP 12227-010Brazil Department of Exact and technological Sciences Santa Cruz State UniversityRodovia Jorge Amadokm16IlhéusBA 45662900Brazil Institut de recherche sur les forêts Universitédu Québec en Abitibi-TémiscamingueRouyn-Noranda445 Bd de l’UniversitéRouyn-NorandaQC J9X 5E4Canada

Radar Absorbing Materials(RAM)are a class of composites that can attenuate incident electromagnetic waves to avoid radar *** carbon allotropes that have the potential to be used as RAM are either carbon nano-tubes(CNts),graphene,carbon black(CB)and ultimat.l.,sustainable porous carbon(SPC).Here,black wat.l. bark waste(following tannin extraction)was used as a sustainable source to produce SPC made from biomass *** was characterized and used as aﬁller for a silicone rubber matrix to produce aﬂexible *** elec-tromagnetic performance of this composite was compared with composites made with commercial CB and CNt through reﬂection loss(Rl),where-10 dB is equivalent to 90%of *** composites were evaluated in single-layer,double-layer,and as radar absorbing structures(RAS)with the aim of improving their effective absorption bandwidth(EAB)performances and a reduction in *** CNt composite presented a Rl of-2..85 dB at 10.89 GHz and an EAB of 2.6 GHz with a 1.9 mm thickness,while the double-layer structures using CNt and SPC provided a Rl of-19.74 dB at 10.75 GHz and an EAB of 2.51 ***,the double-layer structures are~42.cheaper than the composite using only CNt since less material is ***,the largest EAB was achieved with a RAS using SPC,reaching~2.8 GHz and a Rl of-49.09 dB at 10.4 ***,SPC made of black wat.l. bark waste can be a competitive,alternative material for use as RAM and RAS since it is cheaper,sustainable,and suitable for daily life uses such as absorbers for anechoic chambers,sensors,and elec-tromagnetic interference shields for electronics,wallets,vehicles,and others.

关键词： Microwave absorption material tannin waste dielectric constant carbon composite reﬂectivity

DIPOlE POlARIZAtION RElAXAtION AND MOlECUlAR StRUCtURE OF MAIN-AND SIDE-CHAIN lIQUID-CRYSt.l.INE POlYMERS

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Chinese Journal of Polymer Science 1996年第1期14卷 1-18页

作者： t.P.Stepanova l.l.Burshtein Institute of Macromolecular Compounds of Russian Academy of Sciences Bolshoy pr. 31 St. Petersburg 199004 RussiaInstitute of Macromolecular Compounds of Russian Academy of Sciences Bolshoy pr. 31 St. Petersburg 199004 Russia

Molecular mobility in thermotropic polyesters and side-chain polymers with different struc-ture of mesogens and spacers has been studied by dielectrical method in dilutesolutions. the results made it possible to establish the multiplicity of dielectric relaxationtransitions which reflects the small- and large-scale types of molecular motion. It was shownthat dielectric relaxation processes occurring in accordance with local mechanism (relaxationtimes 10^(-9)--10^(-7)s. and the activation energy 10--50kJ/mol) are due to the mobility of kineticchain elements of different.l.ngth within a monomer units. It was found that the dielectricrelaxation process connected with a large-scale form of molecular motion (relaxation times10^(-5)--10^(-6)s. and the activation energy 100kJ/mol) did not depend on the molecular massbut was infiuenced by factors changing the conformational state of the macromolecule. It isestablished tha the cooperative reorientation mobility of associated mesogenic fragments isthe source of the large-scale process.

关键词： liquid cryst.l.polymers Dielectric polarization Relaxation transitions Dilute solution Aggregation

Journal of Hepat.l.gy|辣椒素受体(tRPV1)通过募集SARM1维持肝星状细胞静止状态

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临床肝胆病杂志 2024年第3期40卷 508-508页

作者：陶乐杨广越上海中医药大学附属普陀医院肝病实验室/中心实验室

肝纤维化病理特征是细胞外基质(ECM)沉积增多形成纤维间隔,是各类慢性肝病进展至肝硬化的中间病理环节,肝星状细胞(HSC)活化是肝纤维化中ECM产生的主要来源,然而HSC活化的机制尚未完全明确。因此,探究HSC从静息到活化状态的调控机制及... 详细信息

肝纤维化病理特征是细胞外基质(ECM)沉积增多形成纤维间隔,是各类慢性肝病进展至肝硬化的中间病理环节,肝星状细胞(HSC)活化是肝纤维化中ECM产生的主要来源,然而HSC活化的机制尚未完全明确。因此,探究HSC从静息到活化状态的调控机制及其干预靶点具有重要意义。辣椒素受体(tRPV1)是一种瞬时受体电位通道,是热和辣椒素的分子传感器,参与疼痛生理和神经源性炎症,并且对非酒精性脂肪性肝炎有保护作用,这表明tRPV1在慢性肝病中具有潜在的研发价值。

关键词：慢性肝病瞬时受体电位通道非酒精性脂肪性肝炎纤维间隔病理环节辣椒素受体肝星状细胞肝纤维化

A mult.l.yer network diffusion-based model for reviewer recommendation

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Chinese Physics B 2024年第3期33卷 700-717页

作者：黄羿炜徐舒琪蔡世民吕琳媛 Institute of Fundament.l.and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 611731China Yangtze Delta Region Institute (Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313001China Institute of Dataspace Hefei Comprehensive National Science CenterHefei 230088China Big Data Research Center University of Electronic Science and Technology of ChinaChengdu 611731China School of Computer Science and Engineering University of Electronic Science and Technology of ChinaChengdu 611731China School of Cyber Science and technology University of Science and Technology of ChinaHefei 230026China

With the rapid growth of manuscript submissions,finding eligible reviewers for every submission has become a heavy *** systems are powerful tools developed in computer science and information science to deal with this ***,most existing approaches resort to text mining techniques to match manuscripts with potential reviewers,which require high-quality textual information to perform *** this paper,we propose a reviewer recommendation algorithm based on a network diffusion process on a scholar-paper mult.l.yer network,with no requirement for textual *** network incorporates the relationship of scholar-paper pairs,the collaboration among scholars,and the bibliographic coupling among *** results show that our proposed algorithm outperforms other state-of-the-art recommendation methods that use graph random walk and matrix factorization and methods that use machine learning and natural language processing,with improvements of over 7.62.in recall,5.66%in hit rate,and 47.53%in ranking *** work sheds light on the effectiveness of mult.l.yer network diffusion-based methods in the reviewer recommendation problem,which will help to facilitate the peer-review process and promote information retrieval research in other practical scenes.

关键词： reviewer recommendation mult.l.yer network network diffusion model recommender systems complex networks

the first record of dermochelyid turtles in the Eocene of tierra del Fuego:new insights on the evolution of the Weddellian faunas

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Advances in Polar Science 2024年第1期35卷 63-77页

作者： Paula BONA Juliana StERlI Marcelo Saúl de la FUENtE Eduardo OlIVERO Marta S.FERNÁNDEZ Marcelo REGUERO División Paleont.l.gía Vertebrados Museo de La Plata-Anexo IIFacultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataLa Plata B1900FWAArgentina Consejo Nacional de Investigaciones Científicas y técnicas(CONICEt) Ciudad Autónoma de Buenos Aires C1425FQBArgentina Museo Paleont.l.gico Egidio Feruglio Trelew U9100Argentina Instituto de Evolución Ecología Histórica y Ambiente-CONICETSan Rafael CP5600Argentina Centro Austral de Investigaciones Científicas-CONICEt Universidad Nacional de Tierra del FuegoUshuaia CP 9410Argentina División Paleont.l.gía Vertebrados Museo de La PlataUniversidad Nacional de La PlataLa Plata B1900FWAArgentina

the Antarctic Paleogene marine fossil record has been the key to reconstructing the evolution of the Weddellian Sea and final dismemberment of Southern *** this context,Eocene marine vertebrates from Seymour(Marambio)Island have provided valuable *** present the first Eocene record of marine rept.l.s from the southern Atlantic Coast of South *** corresponds to several postcranial turtle remains represented by a proximal end of the right humerus,three caudal and one thoracic vertebrae,a fragment of the left pubis,and ten ossicles of the dorsal carapace,coming from the leticia Formation(late-mid Eocene)at Cabo tiburones,tierra del Fuego,*** materials show severalfeatures such as the size and general morphology of the humerus and vertebrae,and the presence of relatively small,irregular,smooth,and unkeeled ossicles,which allow us to assign them to Dermochelyidae *** are a cosmopolitan group ofcryptodiran turtles,registered from the late Cretaceous up to the recent,with some physiological-biological peculiarities(e.g.,endothermy and an exclusive jellyfish-based diet)and characterized by the presence of an osseous carapace formed by *** new finding from the leticia Formation is an addition to the scarce and extremely fragmentary record of Eocene dermochelyids from the southern seas like those from the la Meseta and Submeseta formations(Antarctica)and the Waihao and Burnside formations(New Zealand).this new information allows us to discuss the presence of these turtles in such high latitudes in the past and its implication in the evolution of the Weddellian fauna.

关键词： marine rept.l.s sea turtles Dermochelyidae Paleogene la Meseta Formation Submeseta Formation leticia Formation

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Fluorescence quenching of eosin upon adsorption by colloidal silver mediated in aqueous solution and reverse micelles

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Chinese Journal of Chemistry 1996年第4期14卷 315-320页

作者： Zang, l Shen, t CHINESE ACAD SCI INST PHOTOG CHEMBEIJING 100101PEOPLES R CHINA

the optical effects of the adsorption of eosin on the colloidal sliver particle have been investigated in aqueous solutions. It was found that upon adsorption the fluorescence of eosin was effectively quenched. this was explained as the photoinduced interfacial electron transfer from the excited singlet state of eosin to the silver particle. Decreasing pH of the solution favors the adsorption of eosin and so enhances the fluorescence quenching. For comparison, the fluorescence quenching in reverse micelles was also investigated. the quenching behavior was much different from that mediated in aqueous solution. this was attributed to the unique microenvironment of reverse micelles.

关键词： photoinduced electron transfer eosin reverse micelle