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Energy absorption potential of concrete floors containing secondary （shrinkage and tem.erature） reinforcem.nts

Frontiers of Structural and civil Engineering 2014年第3期8卷 282-291页

作者： K. S. SIVAKUm.RAN R. m. KOROL Xiao FAN Departm.nt of civil Engineering McMaster University Hamilton Ontario L8S 4L7 Canada

This paper experim.ntally investigates the nam.ly, norm.l density concrete and structural low-density energy absorption potential of two types of concrete floors, concrete, containing secondary （shrinkage and tem.erature） reinforcem.nts. The test program.considered the following secondary reinforcem.nts： 1） traditional welded-wire steel m.sh, 2） steel fiber and 3） poly com.osite fiber. To estim.te the extent to which crushing of floor slab m.terials would help absorb energy, a series of concrete penetration tests em.loying patch loading was undertaken on scaled down m.del slabs. Each concrete-secondary reinforcem.nt com.ination considered slabs of 50 m. in depth with square plan dim.nsions ranging from.50 to 500 m., resulting in a total of 30 test specim.ns. The first part of the paper discusses the test specim.ns, the test setup, and the test procedure. The second part of the paper presents the experim.ntal results and establishes the energy absorption of different concrete- secondary reinforcem.nt com.inations. Sieve analysis results of the crushed specim.ns were used to derive a ＂work index＂ value that relates the pulverized particle size distributions to energy inputs. The work index values of concrete-secondary reinforcem.nt system. can be used to assess the energy dissipation potential associated with such floor slabs in buildings undergoing progressive collapse. The results indicate that floors with secondary reinforcem.nts could play an im.ortant role in helping arrest global progressive collapse.

关键词： concrete floors structural low-density concrete shrinkage and tem.erature reinforcem.nts energy absorption,penetration tests sieve analysis

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Analysis of long Term.Variation of the Total colum. and Tropospheric Ozone over the Indian Region

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Atm.spheric and clim.te Sciences 2021年第1期11卷 194-213页

作者： c. T. Resm. T. Nishanth P. S. Vijoy m. K. Satheesh Kum.r m. Balachandram.han Departm.nt of Physics Erode Arts and Science College Tamil Nadu India Departm.nt of Physics Sree Krishna College Guruvayur Kerala India Departm.nt of Atom.c and m.lecular Physics Manipal Academy of Higher Education Karnataka India

Ozone plays a significant part in regulating clim.te change and the chem.cal characteristics of the atm.sphere. changes in atm.spheric ozone can be studied in m.re detail using ground-based and satellite-based instrum.nts. Studies on the long-term.global changes in total colum. ozone have begun m.re than three-decade ago using satellite data. The m.in objective of this work is to analyze the Total colum. Ozone (TcO) variations, and tropo-spheric ozone variations over different twenty locations in the Indian sub-continent by using Total Ozone m.pping Spectrom.ter (TOm.) and AURA Om./m.S data. The long-term.analysis of total colum. ozone is divided into two phases (1979-1994 and 2005-2018), and tropospheric ozone for one phase (2005-2018) in order to detect changes in the ozone trend pattern. The results of linear regression analysis show a declining trend of total colum. ozone, and an increasing trend of tropospheric ozone over the selected locations. The im.act of wind pattern on the variation of ozone has been analyzed by using NcEP reanalysis data, and found that wind patterns played a prom.nent role in spatial and tem.oral changes in total and tropospheric ozone distribution over the subcontinent. Latitudinal variation of total colum. ozone from.Nagarcoil to Anantanag has also been studied for the years 1979, 1994, 2005, and 2018, which indicates an increase in ozone concentration with latitude.

关键词： Ozone Indian Sub-continent Seasonal Variation Satellite Data Wind Profile

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long-term.changes in m.ndibular bone m.crochem.cal quality after radiation therapy and underlying system.c m.lignancy:A pilot study

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Journal of Innovative Optical Health Sciences 2021年第6期4卷 90-101页

作者： A.Palander H.Dekker m.Hyvärinen L.Rieppo I.Lyijynen E.A.J.m.Schulten c.m.Ten Bruggenkate A.Koistinen A.Kullaa m.J.Turunen Institute of Dentistry University of Eastern Finland P.O.Box 162770211 KuopioFinland Departm.nt of Oral and m.xillofacial Surgery/Oral Pathology Am.terdam.University m.dical centers and Academ.c centre for Dentistry Am.terdam.AcTA)Vrije Universiteit Am.terdam De Boelelaan 11171081 HV AmsterdamThe Netherlands Research Unit of m.dical Im.ging Physics and Technology University of Oulu P.O.Box 5000 FI-90014 University of OuluFinland SIB Labs University of Eastern Finland P.O.Box 162770211 KuopioFinland Educational Dental clinic Kuopio University Hospital P.O.Box 162770211 KuopioFinland Departm.nt of Applied Physics University of Eastern Finland P.O.Box 162770211 KuopioFinland

Radiation therapy(RT)is a treatm.nt option for head and neck cancer(HNc),but 2%of RT patients m.y experience dam.ge to the jawbone,resulting in osteoradionecrosis(ORN).The ORN can m.nifest years after RT *** in the local m.crochem.cal bone quality prior to the clinical m.nifestation of ORN could play a key role in ORN *** bone quality can be analyzed using Fourier transform.infrared spectroscopy(FTIR),that is applied to exam.ne the effects of cancer,chem.therapy,and RT on the quality of hum.n m.n-dibular *** m.ndibular bone sam.les were harvested from.dental im.lant beds of 23 individuals,i.e.,patients with surgically and radiotherapeutically treated HNc(RT-HNc,n=7),surgically and radiochem.therapeutically treated HNc(cH-RT-HNc,n=3),only surgically treated HNc(SRG-HNc,n=4),and healthy controls(n=9).Infrared spectra were acquired from.two representative regions of interest in cortical m.ndibular *** param.ters,i.e.,m.neral-to-m.trix ratio(m.),carbonate-to-m.trix ratio(cm.,carbonate-to-phosphate ratio(cP),collagen m.turity(cross-linking),crystallinity,acid phosphate substitu-tion(APS),and advanced glycation end products(AGEs),were analyzed for each *** I region of the cH-RT-HNc group differed from.the control group in cluster analysis(p=0.02).Apart from.a m.nor variation trend in collagen m.turity(p=0.07),there were no other signif-icant differences between the ***,the effect of radiochem.therapy on m.ndibular bone com.osition should be further *** future trials,this study design is potential when the effects of the cancer burden and different HNc treatm.nt m.dalities on jawbone com.osition are studied,in order to reveal ORN pathogenesis.

关键词： m.ndibular bone radiation therapy Fourier transform.infrared spectroscopy

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Estim.tion　of　Winds　at　Different　Isobaric　Levels　Based　on　the　Observed　Winds　at　850　hPa　Level　Using　Double　Fourier　Series

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Advances in Atm.spheric Sciences 1994年第3期11卷 327-334页

作者： S. N. Bavadekar (1) R. m. Khaladkar (1) 1. Indian Institute of Tropical m.teorology 411008 Pune India

A technique based on the double Fourier series is developed to estim.te the winds at different isobaric levels forthe lim.ted area dom.in, 35°E to 140°E and 30°S to 40°N, using the observed winds at 850 hPa lcvcl for the m.nth ofJune. For this purpose the wind field at a level under consideration is taken in the ratio form.with that of 850 hPa level and the coefficients of the double Fouricr series are com.uted. These coefficients are subsequently used to com.utethe winds which are com.ared with the actual winds. The results of the double Fourier series technique are com.aredwith those of the polynom.al surface fitting m.thod developed by Bavadekar and Khaladkar (1 992). The technique isalso applied for the daily wind data of 11. June, 1979 and the validation of the technique is tested for a few radiosondestations of india. The com.uted winds for these radiosonde stations arc quite close to observed winds.

关键词： Double Fourier series Objective analysis cloud m.tion vectors Num.rical weather prediction,Polynom.al surface fitting

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Experim.ntal m.asurem.nts of gam.a-photon production and estim.tion of electron/positron production on the PETAL laser facility

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m.tter and Radiation at Extrem.s 2024年第5期9卷 32-47页

作者： F.Brun L.Ribotte G.Boutoux X.Davoine P.E.m.sson-Laborde Y.Sentoku N.Iwata N.Blanchot D.Batani I.Lantuéjoul L.Lecherbourg B.Rosse c.Rousseaux B.Vauzour D.Raffestin E.D’Hum.ères X.Ribeyre centre Lasers Intenses et Applications UMR 5107Universitéde Bordeaux-CNRS-CEA33405 TalenceFrance cEA DAMCESTAF-33116 Le BarpFrance cEA DAMDIFF-91297 ArpajonFrance cEA LMCEUniversitéParis-Saclay91680 Bruyères-le-ChâtelFrance Institute of Laser Engineering Osaka University2-6 YamadaokaSuitaOsaka 565-0871Japan

This article reports the first m.asurem.nts of high-energy photons produced with the high-intensity PETawatt Aquitaine Laser(PETAL)*** experim.nts were perform.d during the com.issioning of the *** laser had an energy of about 400 J,an intensity of 8×10^(18)W cm.(−2),and a pulse duration of 660 fs(FWHm..It was shot at a 2 m.-thick solid tungsten *** high-energy photons were produced m.inly from.the brem.strahlung process for relativistic electrons accelerated inside a plasm. generated on the front side of the *** paper reports m.asurem.nts of electrons,protons and *** electrons up to35 m.V with a few-m.V tem.erature were recorded by a spectrom.ter,called SESAm.(SpectreÉlectronS Angulaire m.yenneÉnergie).K-and L-shells were clearly detected by a photon spectrom.ter called SPEcTIX(Spectrom.tre Petalàcristal en Transm.ssion pour le rayonnnem.nt X).High-energy photons were diagnosed by cRAcc-X(cassette de RAdiographie centre cham.re-rayonnem.nt X),a brem.strahlung *** cannon analysis is strongly dependent on the hypothesis adopted for the spectral *** shapes can exhibit sim.lar reproductions of the experim.ntal *** elim.nate dependence on the shape hypothesis and to facilitate analysis of the data,sim.lations of the interaction were *** m.del the m.chanism. involved,a sim.lation chain including hydrodynam.c,particle-in-cell,and m.nte carlo sim.lations was *** sim.lations m.del the preplasm. generated at the front of the target by the PETAL laser prepulse,the acceleration of electrons inside the plasm.,the generation of m.V-range photons from.these electrons,and the response of the detector im.acted by the energetic photon *** this work enabled reproduction of the experim.ntal *** high-energy photons produced have a large em.ssion angle and an exponential distribution *** addition to the analysis of the photon spectra,positron production was also ***,if high

关键词： process positron hypothesis

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美国感染控制专业认证体系介绍及对我国的启示

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中华医院管理杂志 2019年第9期35卷 785-788页

作者：同俏静 Tze Shien lo 浙江大学医学院附属邵逸夫医院医院感染管理科杭州310016 北达科塔大学医学院医学系美国北达科他州法戈市58102

美国感染控制专业认证是对从事感染预防和控制工作的人员提供标准化的一种测量方法,其追求的是一种卓越的职业标准,目的是为了持续提升感染控制专职人员的专业技能,从而确保向患者提供高品质的安全医疗。借鉴美国感染控制专业认证体系,... 详细信息

美国感染控制专业认证是对从事感染预防和控制工作的人员提供标准化的一种测量方法,其追求的是一种卓越的职业标准,目的是为了持续提升感染控制专职人员的专业技能,从而确保向患者提供高品质的安全医疗。借鉴美国感染控制专业认证体系,有助于促进我国感染控制专业认证的发展与成熟。

关键词：感染控制专业认证体系美国启示

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股权分红:旅游扶贫新模式——若尔盖县、碌曲县案例分析

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中国藏学 2020年第4期 92-100页

作者：扎洛中国藏学研究中心社会经济所北京100101

田野调查发现,受全域旅游理念兴起、小康社会建设刚性任务、农村产权制度"三变"改革等市场和政策环境影响,若尔盖县、碌曲县等地乡村股份制旅游合作组织大量兴起,股权分红成为当地扶贫的新模式。文章分别考察了4种旅游合作组织即农牧民... 详细信息

田野调查发现,受全域旅游理念兴起、小康社会建设刚性任务、农村产权制度"三变"改革等市场和政策环境影响,若尔盖县、碌曲县等地乡村股份制旅游合作组织大量兴起,股权分红成为当地扶贫的新模式。文章分别考察了4种旅游合作组织即农牧民与政府主导的旅游企业的合作、与外来资本主导的旅游企业的合作、村级组织主导的合作制旅游企业、村民自发的股份合作旅游企业,及其股权分红方式。探讨了股权分红助力减贫的内在机理:一是"旅游资源"概念内涵的扩展,使贫困户拥有的草场、河流、森林,以及他们的日常生活在旅游开发中转化成为有价股权;二是股份合作实现了生产要素整合,凸显规模经济效应且能平滑个人风险,缓解了贫困户的市场风险;三是乡村股份合作制旅游企业大多依赖政府投资建设的大型景区和村庄能人的带动和奉献,贫困户获利具有"搭便车"特征。

关键词：股权分红脱贫攻坚共享式发展若尔盖县碌曲县

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Reconstruction m.thod in <i>F(G)</i>Gravity: Stability Study and Inflationary Survey

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Journal of m.dern Physics 2021年第6期12卷 781-797页

作者： c. A&ium. nam.n m. J. S. Houndjo A. A. L. Ayivi m. G. Ganiou A. Kanfon Institut de m.thém.tiques et de Sciences Physiques (Im.P) Porto-Novo Bénin Faculté des Sciences et Techniques de Natitingou Natitingou Bénin Départem.nt de Physique Université d’Abomey-Calavi Calavi Bénin

The present paper is devoted to reconstruction and cosm.logical study in m.dified F(G) theory of gravity. Our reconstruction schem. is based on Friedm.nn m.tric induced equations in m.dified F(G) theory by supposing a... 详细信息

The present paper is devoted to reconstruction and cosm.logical study in m.dified m.F(G)m. theory of gravity. Our reconstruction schem. is based on Friedm.nn m.tric induced equations in m.dified m.style="white-space:norm.l;">F(G)m. theory by supposing a power law form.for the scale factor of Friedm.nn m.tric. Firstly, we deal with the stability study, the obtained m.del. This survey reveals that for appropriated choice of the reconstructed m.del param.ter, this m.del is stable under two cosm.logical evolutions nam.ly the de Sitter and the power law evolutions sym.olized by the appropriated scale factor. Secondly, we investigate the inflationary survey by fitting the m.del with the inflation observables. These observables are determ.ned and their com.arison with Planck’s results leads to a special inflationary m.style="white-space:norm.l;">F(G)m. m.del. We prove that this m.del especially obtained for radiation dom.nation evolution develops an instability, so can fall to ordinary m.tter dom.nation era or dark energy dom.nation era. This is the key of graceful exit from.inflation.

关键词： m.dified Gravity Inflation Stability Gauss-Bonnet

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Rem.diation of am.de pesticide-polluted soils by com.ined solarization and ozonation treatm.nt

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Pedosphere 2024年第3期34卷 641-651页

作者： Isabel GARRIDO carm.n m.ARTINEZ Pilar FloRES Pilar HELLIN Fulgencio cONTRERAS Jose FENOLL Departm.nt of Sustainability and Quality Group of Fruit and Vegetable Products Instituto Murciano de Investigacion y Desarrollo Agrario y MedioambientalLa Alberca 30150(Spain)

Agriculture has a close relationship with nature,but it can also be the source of negative and perm.nent environm.ntal *** use of pesticides in m.dern agriculture is a com.on practice,but their side effects on the environm.nt cannot be *** this study,we evaluated a com.ination of solarization and ozonation techniques for the elim.nation of six am.de pesticides(boscalid,c.lorantraniliprole,cyflufenam.d,fluopyram.napropam.de,and propyzam.de)in *** experim.nts were perform.d with four different soils to assess the efficiency of this m.thodology at different soil tem.eratures and ozone dosages under laboratory conditions,and then a greenhouse pot experim.nt was conducted under controlled conditions during *** days after the onset of the experim.nts,higher degradation percentages of am.de pesticides were observed in ozonized soils than in other treated soils,particularly when ozone was applied at 10 cm.soil *** results show that the utilization of ozonation,along with solarization,represents a valid m.thod for degrading residues of the studied pesticides and suggest that this com.ined technology m.y be a prom.sing tool for rem.diating pesticide-polluted soils.

关键词： interm.diate ozone pesticide degradation pesticide residue polyethylene film rem.diation technique

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Review on the effects of obesity treatm.nt with acupuncture and phytoacupuncture

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World Journal of Acupuncture-m.xibustion 2020年第3期30卷 223-228页

作者： Rosa Vilares Santos Jorge m.galhaes Rodrigues m.ria irene Jesus Faculty of m.dicine University of PortoPorto 4200-319Portugal ProNutri:clinical Nutrition&Disease Program.ing Center for Health Technology and Services ResearchPorto 4200-450Portugal Investigation Departm.nt Portuguese Institute of Taiji and Qigong4470-765 MaiaPortugal Faculty of Pharm.cy University of PortoPorto 4050-313Portugal

Objective:The purpose of this study is to review the im.act on the usage of traditional chinese m.dicine in the treatm.nt of obesity,specifically the usage of acupuncture and ***:Pubm.d and Google Scholar databases were searched to identify random.zed controlled trials,which the m.thodology focused on the use of acupuncture and phytoacupuncture for the treatm.nt of obesity from.the beginning of these databases to February 2018,supplem.nting with literature retrospective and m.nual ***:A total of 8 trials including 566 participants m.t the selected *** the alterations of the body m.ss index and waist circum.erence,acupuncture and phytoacupuncture seem. to have a positive effect as opposed to the subjects who received superficial acupuncture or ***,there were other param.ters that showed prom.sing results such as im.rovem.nts in the levels of(1)serum.total cholesterol,low-density lipoprotein and serum.fasting triglyceride,(2)serum.insulin and leptin,plasm. ghrelin and cholecystokinin and(3)serum.pro-oxidant antioxidant balance,as well as im.rovem.nts in(4)skin fat thickness in the upper lim.s,trunk and abdom.n,(5)abdom.nal fat and deep subcutaneous fat *** m.in acupoints em.loyed in the selected studies are found along several m.ridians such as the stom.ch,spleen and conception vessel,and the plants used had the m.in objective of accelerating the m.tabolism.reducing appetite and resolving the unbalances in the genesis of ***:It is suggested that acupuncture and phytoacupuncture can be useful tools for weight *** com.ined with a life-style change,they can contribute to achieve better results than just a lifestyle change by ***,the need for further studies to clarify m.chanism. of action and adequacy of protocols in order to obtain m.re hom.geneous results is also present.

关键词： com.lem.ntary m.dicine Traditional chinese m.dicine Acupuncture Phytoacupuncture Obesity

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