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288篇 您的检索式:作者名="STOVALL"
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1ACCR导线的现场试验显示文摘ACCR导线是种新型导线,它看上去与传统的ACSR基本相同,但它是由合成材料和耐热铝合金组成。它的主要特点是高强度、重量轻(钢芯的1/3),良好的传导性能(钢芯的3倍)以及热膨胀系数低(钢芯的1/2),因此可以在低弛度重量大线段替代钢导线。美国在2个不同地点对这种新型导线进行现场试验,以验证其各种性能。H. E. DEVE R. CLARK J. STOVALL S. BARRETT R. WHAPHAM W. UESNEL 马明(编译) 2007电力建设2007,28,4:3
2Oxygen Electrocatalysis on Mixed-Metal Oxides/Oxyhydroxides:From Fundamentals to Membrane Electrolyzer Technology显示文摘CONSPECTUS:Catalyzing the oxygen evolution reaction(OER)is important for key energy-storage technologies,particularly water electrolysis and photoelectrolysis for hydrogen fuel production.Under neutral-to-alkaline conditions,first-row transitionmetal oxides/(oxy)hydroxides are the fastest-known OER catalysts and have been the subject of intense study for the past decade.Critical to their high performance is the intentional or accidental addition of Fe to Ni/Co oxides that convert to layered(oxy)hydroxide structures during the OER.Unraveling the role that Fe plays in the catalysis and the molecular identity of the true“active site”has proved challenging,however,due to the dynamics of the host structure and absorbed Fe sites as well as the diversity of local structures in these disordered active phases.In this Account,we highlight our work to understand the role of Fe in Ni/Co(oxy)hydroxide OER catalysts.We first discuss how we characterize the intrinsic activity of the first-row transition-metal(oxy)hydroxide catalysts as thin films by accounting for the contributions of the catalyst-layer thickness(mass loading)and electrical conductivity as well as the underlying substrate’s chemical interactions with the catalyst and the presence of Fe species in the electrolyte.We show how Fe-doped Ni/Co(oxy)hydroxides restructure during catalysis,absorb/desorb Fe,and in some cases degrade or regenerate their activity during electrochemical testing.We highlight the relevant techniques and procedures that allowed us to better understand the role of Fe in activating other first-row transition metals for OER.We find several modes of Fe incorporation in Ni/Co(oxy)hydroxides and show how those modes correlate with activity and durability.We also discuss how this understanding informs the incorporation of earthabundant transition-metal OER catalysts in anion-exchange-membrane water electrolyzers(AEMWE)that provide a locally basic anode environment but run on pure water and have advantages over the more-developed proton-exchange-membrane water electrolyzers(PEMWE)that use platinum-group-metal(PGM)catalysts.We outline the key issues of introducing Fe-doped Ni/Co(oxy)hydroxide catalysts at the anode of the AEMWE,such as the oxidative processes triggered by Fe species traveling through the polymer membrane,pH-gradient effects on the catalyst stability,and possibly limited catalyst utilization in the compressed stack configuration.We also suggest possible mitigation strategies for these issues.Finally,we summarize remaining challenges including the long-term stability of Fe-doped Ni/Co(oxy)hydroxides under OER conditions and the lack of accurate models of the dynamic active surface that hinder our understanding of,and thus ability to design,these catalysts.Raina A.Krivina Yingqing Ou Qiucheng Xu Liam P.Twight T.Nathan Stovall Shannon W.Boettcher 2021Accounts of Materials Research2021,2,7:2
3A histological evaluation of peritoneal injury and repair: implications for adhesion formation 显示文摘Elkins T E Stovall T G Warren J 1987Obstet Gynecol1987,70,2:1
4Preventing ruptured ectopic pregnancy with a single serum progesterone显示文摘Stovall TG Ling FW Cope BJ 1989Am J Obstet Gynecol1989,160,6:1
5Use of irradiated blood components practice parameter显示文摘Przepiorka D Leprac GF Stovall MA 1996Am J Clin pathol1996,106,1:1
6Randomized comparison of laparoscopy-assisted vaginal hysterectomy with standard varinal hysterectomy in an outpatient setting显示文摘 Stovall TG Lipscomb GH 2002Obstet Gynecol2002,80,6:1
7The analysis of monopole antennas located on a spherical vehicle: part 2, numerical and experimental results 显示文摘Tesche F M Neureuther A R Stovall R E 1976IEEE Transactions on Electromagnetic Compatibility1976,18,1:1
8Single dose methotrexate:an expanded clinical trial显示文摘Stovall TG Ling FW 1993Am J Obstet Gynecol1993,168,:1
9Preventing ruptured ectopic pregnaney with a single serum progesterone 显示文摘Stovall TG Ling FW Cope BJ 1989Am J Obstet Gynecol1989,160,6:1
10Single-dose methotrexate for trea-tment of ectopic pregnancy显示文摘Stovall TG Ling FWjGray LA 1991Obstet Gynecol1991,77,5:1
11Predictors of success of methotrexate treatment in women with tubar ectopic pregnancies显示文摘Lipscomb GH McCord ML Stovall TG 1999N Engl J Med1999,341,26:1
12Methotrexate treatment ofunruptured ectopic pregnancy:a report of 100 cases显示文摘Stovall TGjLing FWsGray LA 1991ObstetGynecol1991,77,5:1
13Single dose methotrexatel An expanded clinical trial显示文摘Stovall TG Ling Fw 2003Am J Obstet Gynecol2003,168,:1
14Comparison of two immobilization techniques using portal film and digitally reconstructed radiographs for pediatric patients with brain tumors 显示文摘Zhu Y Stovall J Buffer L 2000Int J Radiat Oncol Biol Phys2000,48,4:1
15Menopause and tear function: the influence of prolactin and sex hormones on human tear production 显示文摘Mathers WD Stovall D Lane JA Zinmerman MB Johnson S 1998Cornea1998,17,4:1
16What are the potential benefits of including latent storage in common wallboard显示文摘Stovall T K Tomlinson J J 1995Journal of Solar Energy Engineering Transactions of the ASME1995,117,4:1
17Sacral fixation technique in lumbosacralfusion显示文摘Stovall DO Jr Goodrich JA Lundy D 1997Spine1997,22,1:1
18Use of irradiated blood components:practice parameter显示文摘Przepiorka D LeParc GF Stovall MA 0,,01:1
19Improved sensitivity and specificity of a single measurement of serum progesterone over serial quantitative β-HCG in screening for ectopic prognancy显示文摘Stovall TG Ling FW 1992Hum Reprod1992,7,5:1
20Nonsurglal treatment of ectopic pregnancy 显示文摘Lipscomb GH Stovall TG Ling FW 2000N Engl J Med2000,343,:1
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