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一种预防噪声导致失聪的新方法(英文)

解放军医学杂志 2009年第5期34卷 519-522页

作者： h.麦尔 T.列纳 m.缇雪 J.m.米勒 Bundeswehrkrankenhaus Ulm Ulm Germany Department of Otolaryngology Medical University of HannoverHannover Germany Kresge hearing Research Institute University of Michigan Ann Arbor MI USA and Center for Hearing and Communication Kdrolinska Institute Stockholm Sweden

对一个国家来说,噪声导致的失聪是一种巨大的社会和经济损失,是以前未曾遇到过的医疗卫生问题,现在这个问题有了一种解决办法。美国农业部(FDA)近年来没有批准任何预防噪声导致失聪的新产品。在美国,这类产品(包括耳塞和耳罩)的市场价... 详细信息

对一个国家来说,噪声导致的失聪是一种巨大的社会和经济损失,是以前未曾遇到过的医疗卫生问题,现在这个问题有了一种解决办法。美国农业部(FDA)近年来没有批准任何预防噪声导致失聪的新产品。在美国,这类产品(包括耳塞和耳罩)的市场价值大约为2.43亿美元,其中约75%来自耳塞的销售。对听力的物理防护可以降低声压水平,但若噪声过强,这种物理防护并不能完全保证听力不受损害。而且,这类"屏蔽"方法也会损害需要通过听、说进行交流来保证的个人安全性。近十年来我们对应激、病理和年龄因素在决定细胞生存和死亡的分子和生化机制方面有了明显深入的了解和认识。我们可以确定导致细胞死亡的凋亡或坏死途径,以及对这些途径起调节作用的外部环境或内源性遗传启动因子、基因及转导因子。用这些新知识,我们开始设计新的干预方法来减轻或防止细胞死亡,使我们第一次能够预防或治疗以前不能预防或治疗的疾患,失聪即是其中一种。

关键词：噪声听力损伤抗氧化剂自由基血管扩张剂

Simulations of helicopter ditching using smoothed particle hydrodynamics

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Journal of hydrodynamics 2020年第4期32卷 653-663页

作者： G.Oger A.Vergnaud B.Bouscasse J.Ohana m.Abu Zarim m.De Leffe A.Bannier L.Chiron Y.Jus m.Gamier S.halbout D.Le Touze Ecole Centrale de Nantes LHEE4 Laboratory(ECN and CNRS)NantesFrance Nextflow Software NantesFrance Bureau Veritas Solutions marine and Offshore NantesFrance Airbus helicopters MarseilleFrance

The present work has been performed in the context of the European h2020 project increased SAfety and Robust certification for ditching of Aircrafts and helicopters(SARAh)dedicated to improving the safety during aircraft ditching,together with a better understanding of the physics involved during those crucial *** numerical and experimental aspects are explored during this *** present study focuses on the application of the smoothed particle hydrodynamics(SPh)method to the simulation of helicopter ditching,as this method has proved to be particularly adapted to free surface impact *** are performed for three different impact configurations,for which the numerical solutions are compared with the experimental results(forces and kinematics)obtained at the wave basin of Ecole Centrale Nantes on a mock-up shape provided by Airbus *** of sensitivity analysis are also provided when needed,to assess the role of some parameters involved in the helicopter behavior and the fluid pressure forces exerted during the impact.

关键词： helicopter ditching smoothed particle hydrodynamics(SPh) Free surface impact wave impact numerical vs experimental solutions

T-lymphoid progenitor-based immunotherapies:clinical perspectives for one and all

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Cellular & molecular Immunology 2022年第12期19卷 1435-1438页

作者： P.Gaudeaux R.D.moirangthem J.Paillet m.martin-Corredera h.Sadek P.Rault A.Joshi J.Zuber T.S.Soheili O.Negre I.André Laboratory of human Lymphohematopoieisis Imagine InstituteINSERM UMR 1163UniversitéParis CitéParisFrance Smart Immune ParisFrance

Commentary of moirangthem,R.D.,ma,K.,Lizot,*** al.A DL-4-and TNFα-based culture system to generate high numbers of non-modified or genetically modified immunotherapeutic human T-lymphoid *** mol Immunol 18,1662–1676... 详细信息

关键词： progenitor Immunol

Direct observation of the CO_(2) formation and C–h consumption of carbon electrode in an aqueous neutral electrolyte supercapacitor by in-situ FTIR and Raman

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Journal of Energy Chemistry 2022年第8期31卷 488-496,I0013页

作者： murilo m.Amaral Victor Y.Yukuhiro Rafael Vicentini alfredo C.Peterlevitz Leonardo m.Da Silva Pablo Fernandez hudson Zanin Advanced Energy Storage Division State University of Campinas13083-852Av.Albert Einsten 400CampinasSPBrazil Chemistry Institute State University of Campinas13083-970Josue de Castro StreetCampinasSPBrazil Department of Chemistry Laboratory of Fundamental and Applied ElectrochemistryFederal University of Jequitinhonha and Mucuri’s ValleyRodovia MGT 367km 5835000Alto da Jacuba39100-000DiamantinaMGBrazil Center for Innovation on New Energies University of Campinas13083-841 CampinasSão PauloBrazil

Electrical double-layer capacitors(EDLCs)consist of energy storage devices that present high-power and moderate energy *** electrolyte and electrode physicochemical properties are crucial for improving their overall energy storage ***,the stability of the EDLCs’materials is the primary focus of this *** energy storage depends on the specific capacitance,and also on the square of the maximum capacitive cell voltage(UmCV).Thus,electrodes with high specific surface area(SSA)and electrolytes with excellent electrochemical stability are commonly reported in the *** electrolytes are safer and green devices compared to other organic-based *** the other hand,their UmCVis reduced compared to other electrolytes(e.g.,organic-based and ionic liquids).In this sense,spanning the UmCVfor aqueous-based electrolytes is a’hot topic’***,the lack of protocols to establish reliable UmCVvalues has culminated in the publishing of several conflicting ***,we confirm that multiwalled carbon nanotubes(mWCNTs)housed in cells degrade and produce CO_(2) under abusive polarisation *** is probed by employing electrochemical techniques,in-situ FTIR and in-situ Raman *** these considerations,the current study uses spectro-electrochemical techniques to support the correct determination of the electrode and electrolyte stability conditions as a function of the operating electrochemical parameters.

关键词： Electrode and electrolyte stabilities In-situ FTIR CO_(2)formation Carbon degradation Supercapacitor Aqueous electrolytes Carbon nanotubes

On the mhD flow of fractional generalized Burgers' fluid with modified Darcy's law

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Acta mechanica Sinica 2007年第3期23卷 257-261页

作者： T.hayat m.Khan S.Asghar Department of mathematics Quaid-i-Azam University 45320Islamabad 44000Pakistan COmSATS Institute of Information Technology h-8 Islamabad 44000Pakistan

This work is concerned with applying the fractional calculus approach to the magnetohydrodynamic （mhD） pipe flow of a fractional generalized Burgers＇ fluid in a porous space by using modified Darcy＇s relationship. The fluid is electrically conducting in the presence of a constant applied magnetic field in the transverse direction. Exact solution for the velocity distribution is developed with the help of Fourier transform for fractional calculus. The solutions for a Navier-Stokes, second grade, maxwell, Oldroyd-B and Burgers＇ fluids appear as the limiting cases of the present analysis.

关键词： modeling Generalized Burgers' fluid,Fractional calculus Exact solution

Stabilization of Spent Grains by Composting: Case of the BB Brewery in Lomé(Togo)

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American Journal of Analytical Chemistry 2022年第5期13卷 175-185页

作者： Bodjona Bassaï magnoudéwa Kadena Somyé-Abalo mèhèssa Kolani Lankondjoa Bafai Diyakadola Dihéénane Laboratory Waste management Treatment and Recovery (GTVD) Faculty of Sciences University of Lomé Lomé Togo Regional Excellence Center Sustainable City in Africa (CERVIDA): DOUNEDON University of Lomé Lomé Togo Laboratory for Research on Agro-Based Resources and Environmental health Advanced School of Agronomy University of Lomé Lomé Togo

Brewery grains have a long history in animal feed. This use in animal feed nevertheless poses a problem, that of bad odors due to the sometimes too long shelf life of spent grains. The objective of this work is to recover spent grains from the BB brewery in Lomé by composting in order to stabilize them. A compost based solely on spent grains was produced after 5 months. The physico-chemical and spectroscopic characterizations at the end of the composting process revealed that the compost obtained has interesting properties with a ph = 7.01;a C/N ratio of 13.7 and a low level of heavy metals (Pb = 1.23 mg/kg, Cd = 0.04 mg/kg etc.).

关键词： Spent Grains Compost Composting Agriculture heavy metals

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化工热力学导论

化工热力学导论

比较CT和mRI在鉴别非弥漫型自身免疫性胰腺炎与胰腺导管腺癌的诊断效能

作者： J.m.·史密斯(J.m. Smith) h.C.·范内斯(h.C. Van Ness)

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国际医学放射学杂志 2019年第1期 127-128页

作者： S.Lee J.h.Kim S.Y.Kim J.h.Byun h.J.Kim m.h.Kim 汪俊萍 Department of Radiology and Research Institute of Radiology University of Ulsan College of MedicineAsan Medical Center

摘要目的采用阅片者自身对照的方式比较CT和mRI在鉴别非弥漫型自身免疫性胰腺炎(AIP)与胰腺导管腺癌(PDA)的诊断效能。方法本研究共纳入61例非弥漫型AIP

关键词：自身免疫性胰腺炎胰腺导管腺癌诊断效能 mRI 弥漫型 CT

microstructural and mechanical behavior of blended powder semisolid formed al7075/B_4C composites under different experimental conditions

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Transactions of Nonferrous metals Society of China 2018年第7期28卷 1298-1310页

作者： A.JAVDANI A.h.DAEI-SORKhABI Department of mechanical Engineering Tabriz Branch Islamic Azad University

This work aimed to fabricate B4C reinforced aluminum matrix composites via blended powder semisolid forming that is an implementation of the benefits of semisolid forming to the powder metallurgy. al7075 elements were incrementally added to ethanol solution under mechanical mixing. al7075 constituents and B4C particles were blended in a high energy ball mill. Cold compacted al7075/B4C blends were pressed at semisolid state. The effects of the size of the matrix（20, 45 and 63 μm）, reinforcing volume fraction（5%, 10% and 20%） and semisolid compaction pressure（50 and 100 mPa） on the morphology, microstructure, density, hardness, compression and bending strength were thoroughly analyzed. Experimental results revealed that the highest microstructural uniformity was achieved when large B4C particles（45 μm） were distributed within the small particles（20 μm） of the matrix phase. Composites with matrix particles larger than reinforcing phase indicated agglomerations in loadings more than 10%（volume fraction）. Agglomerated regions resisted against penetration of the liquid phase to the pores and lowered the density and strength of these composites. Composites with 20 μm al7075 and 20%（volume fraction） 45 μm B4C powder pressed under 100 mPa exhibited the highest values of hardness（hV 190） and compressive strength（336 mPa）.

关键词： blended powder mechanical alloying semisolid forming B4C aluminum matrix composite