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Applied mathematics and mechanics(English Edition) 2015年第8期36卷 1033-1044页

作者： A.g.ARANi g.S.JAFARi Faculty of mechanical Engineering University of Kashan institute of Nanoscience & Nanotechnology University of Kashan

The nonlocal nonlinear vibration analysis of embedded laminated micro- plates resting on an elastic matrix as an orthotropic Pasternak medium is investigated. The small size effects of micro/nano-plate are considered based on the Eringen nonlocal theory. Based on the orthotropic mindlin plate theory along with the von Kármán geo- metric nonlinearity and Hamilton＇s principle, the governing equations are derived. The differential quadrature method （DQm） is applied for obtaining the nonlinear frequency of system. The effects of different parameters such as nonlocal parameters, elastic me- dia, aspect ratios, and boundary conditions are considered on the nonlinear vibration of the micro-plate. Results show that considering elastic medium increases the nonlinear frequency of system. F^lrthermore, the effect of boundary conditions becomes lower at higher nonlocal parameters.

关键词： nonlinear vibration laminated micro-plate orthotropic Pasternak medium,differential quadrature method

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强烈淬火:改善了硬度和残余应力(英文)

金属热处理 2007年第5期32卷 84-89页

作者： N.i.Kobasko g.E.Totten L.C.F.Canale intensive Technologies Ltd Department of mechanical and materials Engineering Portland State University Departamento de materiais Automovilistica e AeronáuticaEESC-Universidade de So Paulo

通过数值模拟和试验研究结果确定使用强烈淬火方法在表面形成最佳压应力,根据这些结果,提出了改善零件的热处理和设备的一些建议。除了探讨最大表面压应力的形成外,对使用可控淬透性钢的优点也进行了讨论。

关键词：强烈淬火残余应力表面压应力硬度数值模拟热处理淬透性面形

Dynamic Recrystallization and Texture Evolution of gW94 mg Alloy During multi-and Unidirectional impact Forging

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Acta metallurgica Sinica(English Letters) 2018年第9期31卷 923-932页

作者： S.S.A.Shah m.g.Jiang D.Wu U.Wasi R.S.Chen The group of magnesium Alloys and Their Applications Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China University of Chinese Academy of Sciences Beijing 100049China School of materials Science and Engineering University of Science and Technology of ChinaHefei 230026China

multi- and unidirectional impact forgings were successfully applied to a （gW94） mg-RE alloy. The microstructure and texture evolution were investigated systematically. The obtained results indicated that during unidirectional impact forging, a bimodal chain deform microstructure was sustained till last forging pass, whereas { 10-12} extension twins-assisted continuous dynamic recrystallization took place during the multidirectional impact forging （mDiF）. The coalescence and intersection of {10-12} extension twins during mDiF efficiently refined the original coarse grains and led to an almost recrystallized homogeneous microstructure. The texture analysis demonstrated that unidirectional impact forging yielded out the strong basal texture; however, mDiF resulted in non-basal texture, which was attributed to the cooperative effects of continuous DRX, twinning, and mDiF itself during the deformation process.

关键词： magnesium alloys Forging Twinning Recrystallization Texture

Positive mR and Large Temperature—Field Sensitivity in manganite Based Heterostructures

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Journal of materials Science & Technology 2013年第10期29卷 989-994页

作者： Uma Khachar P.S.Solanki R.J.Choudhary D.m.Phase D.g.Kuberkar Department of Physics Saurashtra University UgCe-DAE Consortium for Scientifc Research

Studies on the znO/La0.5Pr0.2Sr0.3mn03 （LPSmO）/SrNb0.002Ti0.99803 （SNTO） heterostructure having varying thickness of p-type LPSmO （100 nm - LP1） and （200 nm - LP2） manganite are carried out. znO/LPSmO （n-p） and LPSmO/SNTO （p-n） junctions of both the heterostructures exhibit good rectifying behavior in a wide range of temperature and applied field. Forward and reverse bias characteristics of both the junctions of heterostructures show opposite behavior. The observation of negative magnetoresistance （mR） at 5 K and positive mR at 300 K, in both the heterostructures, has been explained in the context of interface region effects and filling of energy bands of LPSmO manganite. Further, at high temperature, the heterostructures exhibit large temperature （46%K-1） and field （40%T-1） sensitivities. Dependence of transport, magnetotransport, i-V and sensing properties of the heterostructures, on the temperature, field and film thicknesses have been discussed in this communication.

关键词： interfaces Thin films Pulsed laser deposition X-ray diffraction Electric properties

New serological markers in pediatric patients with inflammatory bowel disease

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World Journal of gastroenterology 2014年第17期20卷 4873-4882页

作者： márta Kovács Katalin Eszter müller mária Papp Péter László Lakatos mihály Cs?ndes gábor Veres Department of Pediatrics Petz Aladár County and Teaching Hospital9023 Gy?rHungary 1~(st) Department of Pediatrics Semmelweis University1083 BudapestHungary 2~(nd) Department of medicine University of Debrecen4032 DebrecenHungary 1~(st) Department of medicine Semmelweis University1083 BudapestHungary Department of gastroenterology Petz Aladár County and Teaching Hospital9023 Gy?rHungary

The spectrum of serological markers associated with inflammatory bowel disease (iBD) is rapidly growing. Due to frequently delayed or missed diagnoses, the application of non-invasive diagnostic tests for iBD, as well as differentiation between ulcerative colitis (UC) and Crohn’s disease (CD), would be useful in the pediatric population. in addition, the combination of pancreatic autoantibodies and antibodies against Saccharomyces cerevisiae antibodies/perinuclear cytoplasmic antibody (pANCA) improved the sensitivity of serological markers in pediatric patients with CD and UC. Some studies suggested that age-associated differences in the patterns of antibodies may be present, particularly in the youngest children. in CD, most patients develop stricturing or perforating complications, and a significant number of patients undergo surgery during the disease course. Based on recent knowledge, serum antibodies are qualitatively and quantitatively associated with complicated CD behavior and CD-related surgery. Pediatric UC is characterized by extensive colitis and a high rate of colectomy. in patients with UC, high levels of anti-CBir1 and pANCA are associated with the development of pouchitis after ileal pouch-anal anastomosis. Thus, serologic markers for iBD can be applied to stratify iBD patients into more homogeneous subgroups with respect to disease progression. in conclusion, identification of patients at an increased risk of rapid disease progression is of great interest, as the application of early and more aggressive pharmaceutical intervention could have the potential to alter the natural history of iBD, and reduce complications and hospitalizations.

关键词： inflammatory bowel disease, Crohn’ s disease, Ulcerative colitis, Pediatric, Serologic markers, Antimicrobial antibodies, Anti-glycan antibodies, Pancreatic antibodies, inflammatory bowel disease

Self-seeded quantum-dash laser based 5 m–128 gb/s indoor free-space optical communication

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Chinese Optics Letters 2017年第12期15卷 38-41页

作者： m.A.Shemis A.m.Ragheb E.Alkhazraji m.A.Esmail H.Fathallah S.Alshebeili m.z.m.Khan Optoelectronics Research Laboratory Electrical Engineering DepartmentKing Fahd University of Petroleum and Minerals KACST-TiC in Radio Frequency and Photonics for the e-Society (RFTONiCS) Department of Electrical and Electronics Engineering Technology Jubail Industrial College Computer Department of the College of Science of Bizerte University of Carthage Electrical Engineering Department King Saud University

We demonstrate an indoor 5 m free-space optical wireless coherent communication in mid L-band（1606.7 nm）by employing a tunable self-seeded inAs/ingaAlAs/inP quantum-dash（Qdash） laser as a subcarrier generator for 128 gb/s dual-polarization quadrature phase shift keying（DP-QPSK） modulation signal. The bare Qdash laser diode displays ~6 nm self-locked Fabry-Perot mode tunability with ~30 dB side mode suppression ratio（SmSR） and ~10 dBm mode power across the tuning range, thus encompassing ~10 modes with an achievable capacity of 1.28 Tb/s（10 × 128 gb∕s） and potentially qualifying the source requirements for future access networks.

关键词： FSO gb/s indoor free-space optical communication Self-seeded quantum-dash laser based 5 m

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Research and Application of Recycled Concrete Technology in Prefabricated Buildings

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Research and Application of materials Science 2024年第1期6卷 33-36页

作者： Shanshan DENg gang SHi Chao SHANg Fuchuan zHOU masabo gasper masiko m.Kaziana Chongqing Telecommunication Polytechnic College Chongqing402247China Chongqing yuxi water conservancy and electric power survey and design institute CO. LTD.Chongqing402160China Chengde Thermal Power Engineering installation Co. Ltd.Chengde067000China Chongqing Vocational institute of Engineering Chongqing402260China Undergraduate Architecture and Civil Engineering Dar es Salaam Institute of Technology{DIT}Dar es Salaam11103Tanzania

The utilization of waste concrete as a raw material for recycled concrete in the domain of prefabricated components is garnering greater *** paper delineates and examines the concept,categorization,methodologies of preparation,applicable sectors,and evaluative metrics of recycled concrete technology,highlighting its prospective ***,for the successful integration of recycled concrete technology into prefabricated component applications,it is imperative to systematically enhance its physical,mechanical,and attributes,as well as its environmental ***,to foster the continued advancement of recycled concrete technology,innovative initiatives,standardization,educational programs,demonstration projects,and collaborative efforts are crucial to promote broader adoption and realize improved outcomes within the realm of prefabricated *** conclusion,recycled concrete technology is poised to play a pivotal role in prefabricated construction,offering robust support for propelling the construction industry towards a sustainable future.

关键词： recycled concrete prefabricated buildings Environmental performance assessment

in silico antiplasmodial effects of phytocompounds derived from Andrographis paniculata on validated drug targets of different stages of Plasmodium falciparum

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infectious Diseases Research 2024年第2期5卷 1-11页

作者： Funmilayo i.D.Afolayan Sayo Ebenezer Oladokun Department of zoology University of IbadanIbadan 200005Nigeria

Background:Andrographis paniculata has been widely reported as an herbal plant for malaria *** increasing rate of resistance to recommended antimalarial drugs has justified the need for a continuous search for new and more potent drugs that target all stages of the Plasmodium falciparum life cycle from natural plant *** study aimed to determine the antiplasmodial effect of phytocompounds derived from *** on the stages of plasmodium ***:Phytocompounds from *** were identified by gas Chromatography-mass Spectrophotometry(gCmS)*** phytocompounds were screened for their druggability using Lipinski’s rule of five and subjected to Absorption,Distribution,metabolism,Excretion,Toxicity(ADmET)and druglikeness *** phytocompounds were docked against some validated drug targets at different stages of Plasmodium falciparum(hepatic,asexual,sexual,and vector targets)using PyRx software to analyze the inhibitory potential and protein-ligand ***,the stability and flexibility of the best complexes were assessed through molecular dynamics simulations at 50ns using ***:The 7a-isopropenyl-4,5-dimethyloctahydroinden-4-yl exhibited a higher binding affinity and better stability throughout the simulation period with *** dihydrofolate reductase-thymidylate synthase and Plasmodium falciparum m1 alanyl aminopeptidase for asexual blood stage and gametocyte stage of Plasmodium falciparum,respectively than the existing ***,N-Ethyl-3-methoxy-4-methylphenethylamine was also found to have a higher binding affinity and more stability throughout the simulation period with *** purine nucleoside phosphorylase and Plasmodium falciparum gametocyte surface protein for Hepatic schizonts stage of Plasmodium falciparum and gametocyte transmission blocking stage,respectively,than the existing ***:The 7a-isopropenyl-4,5-dimethyloctahydroinden-4-yl and N-Ethyl-3-methoxy-4

关键词： Plasmodium falciparum drug targets Andrographis paniculata molecular docking molecular dynamics

Numerical investigation and potential tunability scheme on e^+e^- and π^+π^- stimulated pair creation from vacuum using high intensity laser beams

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High Power Laser Science and Engineering 2016年第4期4卷 1-7页

作者： i.Ploumistakis S.D.moustaizis i.Tsohantjis Technical University of Crete Laboratory of Matter Structure and Laser Physics National and Kapodistrian University of Athens Faculty of PhysicsDepartment of Nuclear and Particle Physics

Numerical estimates for electrons and mesons particle–antiparticle creation from vacuum in the presence of strong electromagnetic fields are derived, using the complete probability density relation of Popov's imaginary time method(Popov, JETP Lett. 13, 185(1971); Sov. Phys. JETP 34, 709(1972); Sov. Phys. JETP 35, 659(1972); Popov and marinov, Sov. J. Nucl. Phys. 16, 449(1973); JETP Lett. 18, 255(1974); Sov. J. Nucl. Phys. 19, 584(1974));(Popov,Phys. Let. A 298, 83(2002)), and within the framework of an experimental setup like the E144(Burke et al., Phys. ***. 79, 1626(1997)). The existence of crossing point among pair creation efficiency curves of different photon energies and the role of odd/even multiphoton orders in the production rates are discussed. Finally a kind of tunability process between the two creation processes is discussed.

关键词： high intensity lasers multiphoton processes pair production

First histopathological study in kidneys of rodents naturally infected with Leptospira pathogenic species from Yucatan, mexico

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Asian Pacific Journal of Tropical medicine 2016年第2期9卷 140-142页

作者： marco Torres-Castro Leonardo guillermo-Cordero Silvia Hernández-Betancourt Edwin gutiérrez-Ruíz Piedad Agudelo-Flórez Ronald Peláez-Sánchez Jorge zavala-Castro Fernando i.Puerto Centro de investigaciones Regionales ‘Dr.Hideyo Noguchi' Universidad Autónoma de Yucatán Campus de Ciencias Biológicas y Agropecuarias Universidad Autónoma de Yucatán Facultad de medicina Universidad CES

Objective: To report the renal histological lesions in synanthropic rodents, mus musculus and Rattus rattus, naturally infected with Leptospira spp., captured in a rural community in Yucatan, mexico. methods: Kidney samples of synanthropic rodents were collected from a rural community in Yucatan, mexico. Polymerase chain reaction was used to detect Leptospira spp. infection. Tissue kidney was fixed in 10% buffered formalin, processed according to the usual techniques for paraffin inclusion, cut and stained with hematoxylin and eosin, and examined using a conventional electronic microscope. Results: A total of 187 rodents were captured. Nine individuals(4.8%) were positive for Leptospira spp. in the molecular analysis. All renal lesions observed in the histopathological study had been reported previously for Leptospira spp. infection. Conclusions: The histopathological lesions are present in the kidneys, plus the results of the polymerase chain reaction confirm that these rodents are true carriers of Leptospira spp.

关键词： Leptospira spp. Renal histopathological lesions mus musculus Rattus rattus