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679篇 您的检索式:作者名="Polman"
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1Highly efficient GaAs solar cells by limiting light emission angle显示文摘In a conventional flat plate solar cell under direct sunlight,light is received from the solar disk,but is re-emitted isotropically.This isotropic emission corresponds to a significant entropy increase in the solar cell,with a corresponding drop in efficiency.Here,using a detailed balance model,we show that limiting the emission angle of a high-quality GaAs solar cell is a feasible route to achieving power conversion efficiencies above 38%with a single junction.The highest efficiencies are predicted for a thin,light trapping cell with an ideal back reflector,though the scheme is robust to a non-ideal back reflector.Comparison with a conventional planar cell geometry illustrates that limiting emission angle in a light trapping geometry not only allows for much thinner cells,but also for significantly higher overall efficiencies with an excellent rear reflector.Finally,we present ray-tracing and detailed balance analysis of two angular coupler designs,show that significant efficiency improvements are possible with these couplers,and demonstrate initial fabrication of one coupler design.Emily D Kosten Jackson H Atwater James Parsons Albert Polman Harry A Atwater 2013Light(Science & Applications)2013,2,1:9
2Capacity gaps in health facilities for case management of intestinal schistosomiasis and soil-transmitted helminthiasis in Burundi显示文摘Background:Schistosomiasis and soil-transmitted helminthiasis(STH)are endemic diseases in Burundi.STH control is integrated into health facilities(HF)across the country,but schistosomiasis control is not.The present study aimed to assess the capacity of HF for integrating intestinal schistosomiasis case management into their routine activities.In addition,the current capacity for HF-based STH case management was evaluated.Methods:A random cluster survey was carried out in July 2014,in 65 HF located in Schistosoma mansoni and STH endemic areas.Data were collected by semi-quantitative questionnaires.Staff with different functions at the HF were interviewed(managers,care providers,heads of laboratory and pharmacy and data clerks).Data pertaining to knowledge of intestinal schistosomiasis and STH symptoms,human and material resources and availability and costs of diagnostic tests and treatment were collected.Findings:Less than half of the 65 care providers mentioned one or more major symptoms of intestinal schistosomiasis(abdominal pain 43.1%,bloody diarrhoea 13.9%and bloody stool 7.7%).Few staff members(15.7%)received higher education,and less than 10%were trained in-job on intestinal schistosomiasis case management.Clinical guidelines and laboratory protocols for intestinal schistosomiasis diagnosis and treatment were available in one third of the HF.Diagnosis was performed by direct smear only.Praziquantel was not available in any of the HF.The results for STH were similar,except that major symptoms were more known and cited(abdominal pain 69.2%and diarrhoea 60%).Clinical guidelines were available in 61.5%of HF,and albendazole or mebendazole was available in all HF.Conclusions:The current capacity of HF for intestinal schistosomiasis and STH detection and management is inadequate.Treatment was not available for schistosomiasis.These issues need to be addressed to create an enabling environment for successful integration of intestinal schistosomiasis and STH case management into HF routine activities in Burundi for better control of these diseases.Paul Bizimana Katja Polman Jean-Pierre Van Geertruyden Frederic Nsabiyumva Celine Ngenzebuhoro Elvis Muhimpundu Giuseppina Ortu 2018Infectious Diseases of Poverty2018,7,1:2
3Diagnostic criteria for multiple sclerosis:2005 revisions to the 'McDonald Criteria'显示文摘Polman CH Reingold SC Edan G 2005Ann Neurol2005,58,6:1
4Diagnostic criteria formultiple sclerosis:2010 revisions to the McDonald criteria显示文摘Polman CH Reingold SC Banwell B 2011Ann Neurol2011,69,2:1
5A randomized, placebo controlled trial of natalizumab for relapsing multiple sclerosis 显示文摘POLMAN C O' CONNOR P HAVRDOVA E 2006N Engl J Med2006,354,:1
6Oral treatment for multiple sclerosis显示文摘Killestein J Rudick RA Polman CH 2011Lancet Neurol2011,10,11:1
7Incomplete blockwise factorizations of (block) H -matrices显示文摘Ben Polman 1987Linear Algebra Appl1987,,90:1
8ERβ:Identification and characterization of a novel human estrogen receptor显示文摘Mosselman S Polman J Dijkema R 1996FEBS Lett1996,392,1:1
9Recombinant human zona pellucida protein ZP3 produced by Chinese hamster ovary cells induces the human acrosome reaction and promotes sperm-egg fusion显示文摘van Duin M Polman JEM De Breet ITM 1994Biol Reprod1994,51,4:1
10Diagnostic criteria for multiple sclerosis :2010 revisions to the McDonald criteria显示文摘Polman CH Reingold SC Banwell B 2011Ann Neurol2011,69,2:1
11Current trials in mutiple sclerosis:established evidence and future hopes显示文摘Killestein J Polman CH 0,,3:1
12Diagnostic criteria for multiple sclerosis: 2010 revisions to the McDonald criteria显示文摘Polman CH Reingold SC Banwell B 2011Ann Neurol2011,69,2:1
13Mental toughness, coping self-efficacy, and coping effectiveness among athletes 显示文摘Nicholls AR Levy AR Polman RCJ 2011International Journal of Sport Psy- chology2011,42,6:1
14Incomplete blockwise factorizations of(block)H-matrices显示文摘Ben polman 1987Linear Algebra and its Applications1987,,90:1
15Plasmonics for improvedphotovoltaic devices显示文摘Atwater H A Polman A 2010Nature Materials2010,9,:1
16Diagnostic criteria for multiple sclerosis:2010 revisions to the McDonald criteria显示文摘Polman CH Reingold SC Banwell B 2011Ann Neuro12011,69,:1
17A randomized,placebo-controlled trial of natalizumab for relapsing multiple sclerosis显示文摘Polman CH O'Connor PW Havrdova E 0,,:1
18Diagnostic crite- ria for multiple sclerosis: 2010 revisions to the McDonald cri- teria显示文摘Polman CH Reingold SC Banwell B ct al 2011Ann Neurol2011,69,2:1
19Treatment with laquinimod reduces development of active MRI lesions in relapsing MS 显示文摘POLMAN C BARKHOF F SANDBERG-Wollheim M 2005Neurology2005,64,6:1
20Photoluminescence quantum efficiency of dense silicon nanocrystal ensembles in SiO2显示文摘WALTERS R J KALKMAN J POLMAN A 2006Phys Rev B Condens Matter2006,73,13:1
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