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中华会计函授 1997年第1期 29-31页

作者： c.w donovan

The acceleration of a high-charge electron bunch to 10 GeV in a 10-cm nanoparticle-assisted wakefield accelerator

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Matter and Radiation at Extremes 2024年第1期9卷 15-24页

作者： constantin Aniculaesei Thanh Ha Samuel Yoffe Lance Labun Stephen Milton Edward Mccary Michael M.Spinks Hernan J.Quevedo Ou Z.Labun Ritwik Sain Andrea Hannasch Rafal Zgadzaj Isabella Pagano Jose A.Franco-Altamirano Martin L.Ringuette Erhart Gaul Scott V.Luedtke Ganesh Tiwari Bernhard Ersfeld Enrico Brunetti Hartmut Ruhl Todd Ditmire Sandra Bruce Michael E.donovan Michael c.Downer Dino A.Jaroszynski Bjorn Manuel Hegelich University of Texas at Austin AustinTexas 78712USA SUPA Department of Physics University of StrathclydeGlasgowScotland G4 ONGUnited Kingdom Tau Systems Inc.AustinTexas 78701USA Lawrence Livermore National Laboratory LivermoreCalifornia 94550USA Los Alamos National Laboratory Los AlamosNew Mexico 87545USA Brookhaven National Laboratory UptonNew York 11973USA Ludwig-Maximilians-Universität MunichGermany

An intense laser pulse focused onto a plasma can excite nonlinear plasma *** appropriate conditions,electrons from the background plasma are trapped in the plasma wave and accelerated to ultra-relativistic *** scheme is called a laser wakefield *** this work,we present results from a laser wakefield acceleration experiment using a petawatt-class laser to excite the wakefields as well as nanoparticles to assist the injection of electrons into the accelerating phase of the *** find that a 10-cm-long,nanoparticle-assisted laser wakefield accelerator can generate 340 pc,10±1.86 GeV electron bunches with a 3.4 GeV rms convolved energy spread and a 0.9 mrad rms *** can also produce bunches with lower energies in the 4–6 GeV range.

关键词： acceleration nanoparticle charge

Volumetric measurement of rock movement using photogrammetry

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International Journal of Mining Science and Technology 2016年第1期26卷 123-130页

作者： Benton donovan J. Iverson Stephen R. Martin Lewis A. Johnson Jeffrey c. Raffaldi Michael J. National Institute for Occupational Safety and Health. Spokane 99207 USA

NIOSH ground control safety research program at Spokane,washington,is exploring applications of photogrammetry to rock mass and support monitoring. This paper describes two ways photogrammetric techniques are being used. First,photogrammetric data of laboratory testing is being used to correlate energy input and support deformation. This information can be used to infer remaining support toughness after ground deformation events. This technique is also demonstrated in a field ***,field photogrammetric data is compared to crackmeter data from a deep underground *** were found to average 8 mm,but have produced results within 0.2 mm of true displacement,as measured by crackmeters. Application of these techniques consists of monitoring overall fault activity by monitoring multiple points around the crackmeter. A case study is provided in which a crackmeter is clearly shown to have provided insufficient information regarding overall fault ground *** is proving to be a useful ground monitoring tool due to its unobtrusiveness and ease of use.

关键词： PhotogrammetryGround controlMonitoringDeep vein miningVolume calculationcrackmeter

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Recent trends in liver transplantation for alcoholic liver disease in the United States

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world Journal of Hepatology 2017年第36期9卷 1315-1321页

作者： catherine E Kling James D Perkins Robert L carithers Dennis M donovan Lena Sibulesky Division of Transplant Surgery Department of Surgery University of Washington Division of Gastroenterology and Hepatology Department of Medicine University of Washington Department of Psychiatry and Behavioral Sciences University of Washington

AIM To examine temporal changes in the indications for liver transplantation(LT) and characteristics of patients transplanted for alcoholic liver disease(ALD).METHODS we performed a retrospective cohort analysis of trends in the indication for LT using the United Network for Organ Sharing(UNOS) database between 2002 and 2015. Patients were grouped by etiology of the liver disease and characteristics were compared using χ~2 and t-tests. Time series analysis was used identifying any year with a significant change in the number of transplants per year for ALD, and before and after eras were modeled using a general linear model. Subgroup analysis of recipients with ALD was performed by age group, gender, UNOS region and etiology(alcoholic cirrhosis, alcoholic hepatitis and hepatitis c-alcoholic cirrhosis dual listing).RESULTS Of 74216 liver transplant recipients, ALD(n = 9400, 12.7%) was the third leading indication for transplant after hepatitis c and hepatocellular carcinoma. Transplants for ALD, increased from 12.8%(553) in 2002 to 16.5%(1020) in 2015. Time series analysis indicated a significant increase in the number of transplants per year for ALD in 2013(P = 0.03). There were a stable number of transplants per year between 2002 and 2012(linear coefficient 3, 95%cI:-4.6, 11.2) an increase of 177 per year between 2013 and 2015(95%cI: 119, 234). This increase was significant for all age groups except those 71-83 years old, was observed for both genders, and was incompletely explained by a decrease in transplants for hepatitis c and ALD dual listing. All UNOS regions except region 9 saw an increase in the mean number of transplants per year when comparing eras, and this increase was significant in regions 2, 3, 4, 5, 6, 8, 10 and *** There has been a dramatic increase in the number of transplants for ALD starting in 2013.

关键词： Alcoholic liver disease Liver transplantation cirrhosis Epidemiology Hepatitis c

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地震危险、地面运动与规范的地震力

工程抗震与加固改造 1982年第S2期 18-23页

作者： N eville c. donovan 范学敏 Dames和Moore公司股东加洲旧金山

引言有一种混淆存在于地震工程领域不同学科的专业人员之间。这就是混淆了特定场地由地震危险性研究得到的地面运动值、仪器观测到的峰值地面运动和设计规范用以获得侧力的地面运动值之间的明显的不一致。本文研究了这些量随着地震危险... 详细信息

引言有一种混淆存在于地震工程领域不同学科的专业人员之间。这就是混淆了特定场地由地震危险性研究得到的地面运动值、仪器观测到的峰值地面运动和设计规范用以获得侧力的地面运动值之间的明显的不一致。本文研究了这些量随着地震危险方法论的改进和规范的可能的修改(如应用技术委员会的报告ATc-3-06所建议的)而变化时,其相互关系的某些方面。首先回顾了地震危险性估计的进展。其次检验了一些最近的地面运动资料。然后讨论了地面运动与规范地震力

关键词：地面运动地壳运动地震力地震荷载断层破裂长度

Accelerating material design with the generative toolkit for scientific discovery

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npj computational Materials 2023年第1期9卷 1649-1654页

作者： Matteo Manica Jannis Born Joris cadow Dimitrios christofidellis Ashish Dave Dean clarke Yves Gaetan Nana Teukam Giorgio Giannone Samuel c.Hoffman Matthew Buchan Vijil chenthamarakshan Timothy donovan Hsiang Han Hsu Federico Zipoli Oliver Schilter Akihiro Kishimoto Lisa Hamada Inkit Padhi Karl wehden Lauren McHugh Alexy Khrabrov Payel Das Seiji Takeda John R.Smith IBM Research Europe-Zurich RüschlikonSwitzerland IBM Research-UK HursleyUK IBM Research-Yorktown Heights New YorkUSA IBM Research-Tokyo TokyoJapan IBM Research-Almaden San JoseUSA

with the growing availability of data within various scientific domains,generative models hold enormous potential to accelerate scientific *** harness powerful representations learned from datasets to speed up the formulation of novel hypotheses with the potential to impact material discovery *** present the Generative Toolkit for Scientific Discovery(GT4SD).This extensible open-source library enables scientists,developers,and researchers to train and use state-of-the-art generative models to accelerate scientific discovery focused on organic material design.

关键词： enable scientific formulation

STUDIES ON cis-trans-ISOMERIZATION AND REAcTION KINETIcS OF A μ, η~2-VINYL LIGAND IN A TRIOSMIUM cLUSTER

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Science china chemistry 1989年第7期32卷 808-815页

作者：刘家础 A.J.DEEMING E.BOYAR S.donovan-MTUNZI Fujian Institute of Research on the Structure of Matter Academia Sinica Fuzhou Department of chemistry University College London U. K.

The dihydride cluster H_2O_(s_3)(cO)_(10) reacts with ethyne to give a cis-adduct [O_(s_3)H(μ,η~2-cH=cH_2)(cO)_(10)]. The high deuterated cluster D_2O_(s_3)(cO)_(10), the reaction of D_2O_(s_3)(cO)_(10)with ethyne c_2H_2 to form the vinyl product cluster [O_(s_3)D(μ, η~2-cH=cHD)(cO)_(10)], and thereaction of H_2O_(s_3)(cO)_(10) with the deuterated ethyne c_2D_2 to form [O_(s_3)H(μ,η~2-cD=cDH)(cO)_(10)] have been reported primarily in this paper. The two cis-adducts undergo cis-trans-isomerization of μ,η~2-vinyl ligands under a small amount of the nucleophile pyridine. Usingthe combination of deuteration and dynamic ~1H,~2H NMR spectra, we report the experimen-tal evidence determined by the dynamic ~1H, ~2H NMR spectra, mechanism, and kinetic dataof the isomerization.

关键词： dihydride cluster deuterated cluster cis-trans-isomerization

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Full-aperture backscatter diagnostics and applications at the Texas Petawatt Laser facility

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chinese Optics Letters 2014年第A2期12卷 152-156页

作者： c. wang c. wagner G. Dyer E. Gaul N. Kandadai N. Riley D. Kuk E. Mccary A. Meadows I. Pomerantz M. Spinks T. Borger A. Bernstein M. donovan M. Martinez T. Ditmire Bjorn M. Hegelich center for High Energy Density Science University of Texas Austin Texas 78712

In this paper, we present the development and application of a full-aperture baekscatter diagnostics system at the Texas Petawatt Laser （TPw） facility. The diagnostic system includes three independent diagnostic stations. with this system, we obtained TPw on-shot focus properties, and high-harmonic spectral emission flOln solid foils （e.g., cu and Al） and their Si substrate in an experiment to study laser hole boring, which show the hole-boring mechanism at relativistic intensities. The measured on-target full-power focal spots from ultrathin film targets help determine the optimum target thickness at certain laser contrast parameters for particle acceleration and neutron generation experiment, which is also a relative measurement of shot-to- shot intensity fluctuations.

关键词： 320.7090 Ultrafast lasers 020.2649 Strong field laser physics 300.6360 Spectroscopy, laser 350.5400 Plasmas

Biosorption of Heavy Metal by Algae Biomass in Surface water

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Journal of Environmental Protection 2016年第11期7卷 1547-1560页

作者： Handojo Djati Utomo Keng Xuan donovan Tan Zhi Yi Daniel choong Jia Jia Yu Jie Jun Ong Zheng Bang Lim Division of civil Engineering School of Architecture and the Built Environment Singapore Polytechnic Singapore Singapore Advanced Material Technology centre Technology Development Office Singapore Polytechnic Singapore Singapore

Discharging wastewater containing heavy metals of cu, Pb, Zn and cd into water bodies can cause toxicity in plants and aquatic animals and some of them will be unable to survive except algae. wastewater treatment method to remove heavy metal contaminants includes chemical precipitation, ion exchange, membrane, filtration, adsorption using activated carbon. However, these methods are either expensive or have other disadvantages such as high energy consumption and inefficiencies when existing heavy metals are at trace concentration. Biosorption using algae biomass can be an alternative method to eliminate heavy metals. The objective of the project is to investigate the capability of Marine Algae (MA) and Freshwater Algae (FA) bi-omass in adsorbing heavy metals of cu, Pb, Zn and cd from water medium using synthetic.water and industrial water. MA and FA were obtained from the eastern coast of Pulau Ubin and local fish farm respectively. After being fully washed with deionised water, dried in a furnace for 105°c, they are grinded to pass 1 mm2 of siever. MA and FA were characterised using FTIR to determine their functional groups. An industrial water was collected from industrial discharge from metal fac-tories in northern side of Singapore. Effect of adsorption time, adsorbent concentra-tion, and pH were studied. The result showed that FA and MA had a higher capability in adsorbing a total metal of about 40 ppm level from an industrial water, or 4 times than synthetic.water concentration, at the same adsorbent dosage of 50 mg. In con-clusion, the presence of various functional groups, hydroxyl, carboxylic and amine groups, in all MA and FA samples had enabled the algae biomass to adsorb heavy metals of cu, Pb, cd and Zn from synthetic and industrial water. Due to their bio-sorptive properties and fast adsorption capability, algae could be a potential method for cleaning up surface water or post-treatment of wastewater and minimise the cost of eutrophication.

关键词： Algae Biomass Biosorption Eutrophication Heavy Metal Surface water wastewater

精神分裂症:是一种遗传性突触病吗? 谷氨酸能突触可能是其主要病变部位

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英国医学杂志中文版 2005年第4期8卷 201-202页

作者： Michael J Owen Michael c O＇donovan Paul J Harrison 孟晓梅（译）许贤豪（校） Department of Psychological Medicine School of Medicine Cardiff University Cardiff CF14 4XN University Department of Psychiatry Warneford Hospital Oxford OX3 7JX 不详

了解精神分裂症的病因和发病机理是精神病学研究的主要任务之一.迄今为止,这方面的研究进展缓慢,少数几个已明确的论点之一是易感性的个体差异主要与遗传有关1.但由于与精神分裂症相关的基因尚未得到可靠鉴定,因此尚未用于神经生物学.... 详细信息

了解精神分裂症的病因和发病机理是精神病学研究的主要任务之一.迄今为止,这方面的研究进展缓慢,少数几个已明确的论点之一是易感性的个体差异主要与遗传有关1.但由于与精神分裂症相关的基因尚未得到可靠鉴定,因此尚未用于神经生物学.这种情况使人们开始重新评价现有的精神分裂症发病机理的假说.

关键词：精神分裂症遗传性突触病谷氨酸发病机理遗传学基因编码蛋白

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