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Communications in Theoretical Physics 2013年第8期60卷 175-182页

作者： Vik.s k.mar R.k.Gupta Ram Jiwari School of Mathematics and Computer Applications Thapar UniversityPatiala147004PunjabIndia

In this paper, a variable-coefficient Benjarnin-Bona-Mahony-Burger （BBMB） equation arising as a math- ematical model of propagation of small-amplitude long waves in nonlinear dispersive media is investigated. The inte- grability of such an equation is studied with Painlevd analysis. The Lie symmetry method is performed for the BBMB equation and then similarity reductions and exact solutions are obtained based on the optimal system method. Further- more different types of solitary, periodic and k.nk.waves can be seen with the change of variable coefficients.

关键词： BBMB equation Painleve analysis Lie symmetric analysis exact solutions

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三火花塞点火系统对混动专用发动机稀燃性能影响试验研究

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汽车工程 2023年第11期45卷 2139-2147,2185页

作者：闫博文 benjamin Waters k.n Pendlebury 胡铁刚张家祥杨晓前蒲运平重庆长安汽车股份有限公司动力研究院重庆400000 长安英国研发中心伯明翰B377YG

基于一台三缸1.5TGDI增压直喷发动机研究了三火花塞点火均质稀燃对发动机性能的影响。结果表明:三火花塞可有效拓展稀燃极限,压缩比15时,采用三火花塞在2000 r/min、8 bar BMEP的特征工况点可实现lambda 1.95的稳定燃烧,最低油耗相比单... 详细信息

基于一台三缸1.5TGDI增压直喷发动机研究了三火花塞点火均质稀燃对发动机性能的影响。结果表明:三火花塞可有效拓展稀燃极限,压缩比15时,采用三火花塞在2000 r/min、8 bar BMEP的特征工况点可实现lambda 1.95的稳定燃烧,最低油耗相比单火花塞降低约5 g/(k.W·h),NO_(x)原始排放可降低至约50×10^(-6),此时lambda受增压能力限制难以进一步增加;压缩比增加至16所能实现的最低油耗相比压缩比15改善不明显,且稀燃极限有所下降。三火花塞对爆震倾向改善作用较小,但可显著加快稀混合气的燃烧速率,相同lambda条件下其燃烧持续期相比单火花塞可缩短约3-6℃A,lambda 1.95时的燃烧持续期相比当量燃烧仅增加约2℃A。通过对潜在最高热效率的研究表明,采用三火花塞设计可在压缩比15条件下最终实现45.02%的有效热效率。

关键词：三火花塞混动专用发动机均质稀燃热效率 NOx排放

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Automatic control systems / 8th ed.

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Spectrum of Meningitis in Adult at the Douala General Hospital

2003年

作者： k.o benjamin C.

来源：畅想之星图书光盘版（南... 评论

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World Journal of Neuroscience 2014年第2期4卷 144-151页

作者： Yacouba N. Mapoure Henry N. Luma Dieudonné Gnonlonfoun Paul M. Ossou-Guiet Xaverie Biloa Jacques N. Doumbe Hugo Bertrand N. Mbatchou benjamin Clet N. Tchaleu Julius Y. Fonsah Albert S. Mouelle Alfred k. Njamnshi Department of Clinical Sciences Douala General Hospital Douala Cameroon Department of Clinical Sciences The University of Douala Douala Cameroon Department of Clinical Sciences Université des Montagnes Douala Cameroon Department of Neurology Brazzaville University Teaching Hospital Brazzaville Congo Department of Neurology National University Hospital Centre Cotonou Bénin Department of Neurology The University of Yaoundé I Yaoundé Cameroon Department of Neurology Yaoundé Central Hospital Yaoundé Cameroon

Objectives: Describe the clinical, aetiological and prognostic features of infectious meningitis in adults at the Douala General Hospital (DGH). Patients and Methods: We carried out a 5-year retrospective cross-sectional study at the DGH, on data from the registers of the bacteriology and biochemistry laboratories. Cases of meningitis were identified from the results of the cerebrospinal fluid (CSF) analysis, and the patient clinical file was obtained. Cases files of patients aged 15 years and above were included. For each patient, sociodemographic, clinical features and hospital mortality data were extracted. Results: During study period, 1877 CSF analyses were recorded and 135 were enrolled for data analysis. Up to 74 patients (55%) were male and the mean age was 40.04 ± 12.5 years. The time lapse between the onset of symptoms and consultation was 12.24 ± 11.16 days. The main clinical signs were meningeal syndrome (96.3%), neck.stiffness (71.1%), reduced alertness (64.4%) and confusional states (55.6%). The main aetiology was bacterial (45.19%) withStreptococcus pneumoniae?(45.90%) and?Neisseria meningitis?(29.51%) leading. The other aetiologies were viral (21.48%), fungal with?Cryptococcus neoformans?(20%) and meningeal tuberculosis (13.33%). Fifty eight patients (42.9%) had a positive HIV serology. The mean duration of hospitalization was 9.05 ± 8.1 days, and the total in-hospital mortality was 25.18%. 117 patients (86.8%) had received antibiotherapy before diagnosis. Conclusion: The clinical features of meningitis in the DGH are as in classical description. However, the mortality is high and the major aetiologies appear to be associated with HIV infection at least in part. Prospective multi-centric studies are needed to provide more evidence for the development of staged management guidelines in our resource-limited settings.

关键词： Meningitis Signs Aetiologies Mortality Adults Douala Cameroon

VERNAUZATION1 Modulates Root System Architecture in Wheat and Barley

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Molecular Plant 2018年第1期11卷 226-229页

作者： k.i P. Voss-Fels Hannah Robinson Stephen R. Mudge Cecile Richard Saul Newman benjamin Wittk.p Andreas Stahl Wolfgang Friedt Matthias Frisch lulian Gabur Anik. Miller-Cooper Bradley C. Campbell Alison k.lly Glen Fox Jack.Christopher Mandy Christopher k.rine Chenu Jerome Franck.wiak.Emma S. Mace Andrew k. Borrell Howard Eagles David R. Jordan Jose R. Botella Graeme Hammer lan D. Godwin Ben Trevask.s Rod J. Snowdon Lee T. Hick.y Department of Plant Breeding IFZ Research Centre for Biosystems Land Use and Nutrition Justus Uebig University Heinrich-Buff-Ring 26-32 35392 Giessen Germany Queensland Alliance for Agriculture and Food Innovation The University of Queensland St Lucia QLD 4072 Australia School of Agriculture and Food Sciences The University of Queensland Brisbane QLD 4072 Australia CSIRO Agriculture Canberra ACT 2601 Australia Department of Biometry and Population Genetics IFZ Research Centre for Biosystems Land Use and Nutrition Justus Liebig University Heinrich-Buff-Ring 26-32 35392 Giessen Germany Department of Agriculture and Fisheries Leslie Research FacilRy Toowoomba QLD 4350 Australia Queensland Alliance for Agriculture and Food Innovation The University of Queensland roowoomba QLD 4350 Australia Department of Agronomy and Plant Genetics University of Minnesota St Paul MN USA Department of Agriculture and Fisheries Hermitage Research Facility Warwick QLD 4370 Australia Queensland Alliance for Agriculture and Food Innovation Hermitage Research Facility The University of Queensland Warwick QLD 4370 Australia These authors contributed equally to this article.

Dear Editor Roots play a k.y role in plant growth regulation. It is well described that the below-ground plant architecture has a significant impact on plant performance under abiotic constraints and maintains stabili...

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应用T2*校正MRI对伴铁沉积的肝脏脂肪的评估:一种临床方法

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国际医学放射学杂志 2013年第4期 404-405页

作者： H. benjamin k. Christian R. Stefan E. Robert J. Werner Z. Heinz 刘春明 Department of Radiology Innsbruck Medical UniversityAnichstraβe 356020 Innsbruck Austria

目的评估应用和不应用T2*校正的常规化学位移序列MRI诊断伴铁沉积的脂肪性肝炎（SH）的价值。方法回顾性分析31例临床怀疑弥漫性肝病并行MRI和肝活检的病人。应用常规扰相梯度回波T1FLAIR同反相位（IP/OP）计算相互集中的感兴趣区（ROI... 详细信息

目的评估应用和不应用T2*校正的常规化学位移序列MRI诊断伴铁沉积的脂肪性肝炎（SH）的价值。方法回顾性分析31例临床怀疑弥漫性肝病并行MRI和肝活检的病人。应用常规扰相梯度回波T1FLAIR同反相位（IP/OP）计算相互集中的感兴趣区（ROI）的信号强度（SI）。在脂肪饱和多回波梯度回波序列成像中记录T2*弛豫时间。根据未经T2*校正的和经T2*校正的SI计算脂肪分数（FF）。结果与肝活检相互关联。结果患有SH并伴肝内铁过载（HIO）病人的经T2*和未经T2*校正所计算的FF值之间有显著性差异（P<0.001）。以5%为阈值导致未经T2*校正的FF值出现8个假阴性结果,而经T2*校正的FF值可使上述8个假阴性结果中的5个转为真阳性结果。ROC分析计算出经T2*校正FF值的3个阈值（8.97%、5.3%和3.92%）,其准确度、敏感度和特异度分别为84%、83%91%和63%88%。结论 T2*校正的FF值能准确诊断伴有HIO肝脏的脂肪含量。我们的研究结果建议应用联合T2*校正的IP/OP成像。要点①MR检查有助于量化肝内脂肪与铁的含量。②T2*校正有助于脂肪性肝炎的准确诊断。③经T2*校正的化学位移序列测得的"脂肪分数"可准确量化肝内脂肪。④无T2*校正的化学位移序列测得的"脂肪分数"会低估伴有铁过载的肝内脂肪含量。

关键词： MRI 肝脏脂肪性肝炎铁过载 T2*

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富兰克林自传

Modification of colorimetric method based digital soil test k.t for determination of macronutrients in oil palm plantation

2016年

作者： (美.1706-1790)富兰克林

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International Journal of Agricultural and Biological Engineering 2020年第4期13卷 188-197页

作者： Muhammad Yamin Wan Ishak.bin Wan Ismail Muhamad Saufi bin Mohd k.ssim Samsuzana Binti Abd Aziz Farah Naz Ak.ar Redmond R.Shamshiri Muhammad Ibrahim benjamin Mahns Department of Farm Machinery&Power Faculty of Agricultural Engineering&TechnologyUniversity of AgricultureFaisalabad(38040)Pakistan Department of Biological and Agricultural Engineering Faculty of EngineeringUniversiti Putra Malaysia43400 UPM SerdangSelangorMalaysia Department of Allied Health Sciences Sargodha Medical CollegeUniversity of Sargodha(40100)Pakistan Leibniz Institute for Agricultural Engineering and Bioeconomy Max-Eyth-Allee 10014469 Potsdam-BornimGermany Department of Environmental Sciences&Engineering Government College University Faisalabad(38000)Pakistan

It is the need of time that oil palm farmers must perform the spatially planned soil analysis to k.ow about the fertilizer sufficient and deficient zones of *** method is a suitable and fast solution of soil analysis for NPk.determination using the digital soil test *** determination procedure with a digital soil test k.t was undefined for oil ***,the digital soil test k.t determines the passage of light through an opaque medium of soil solution with a specified ***,environmental light may interfere leading to wrong results of NPk.***,this equipment was non-incorporable with the controller of any VRT fertilizer *** this research,these issues were addressed and the NPk.measurement procedure was defined for oil palm plantation by modifying the‘soil to water’ratio in sample soil solution with an optimum environmental light range of 18-23 W/m^(2).‘Soil to water’ratios were found for nitrogen,phosphorus and potassium as 0.31 to 5.00,1.00 to 5.00 and 4.50 to 5.00,respectively to fit the requirement of NPk.for oil palm in the prescribed range of the *** study of modified digital soil test k.t showed that 91.7%N,89.6%P and 93.8%k.results of modified digital soil test k.t were matched with analytical laboratory ***,the reliability of NPk.results using digital soil test k.t was enhanced,mak.ng the k.t incorporable with the controller of variable rate fertilizer applicator through remote monitoring based data acquisition *** outcome of this research can be used in the development of an IoT network.data fusion for dynamic assessment of the NPk.variation in the soil and nutrient management in oil palm plantations.

关键词： digital soil test k.t variable rate fertilizer applicator oil palm NPk.measurement data acquisition system colorimetric method

Sharpening emitter localization in front of a tuned mirror

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Light(Science & Applications) 2018年第1期7卷 71-78页

作者： Hannah S.Heil benjamin Schreiber Ralph Götz Monik. Emmerling Marie-Christine Dabauvalle Georg k.ohne Sven Höfling Martin k.mp Mark.s Sauer k.trin G.Heinze Rudolf Virchow Center Research Center for Experimental BiomedicineUniversity of WürzburgJosef-Schneider-Str.297080 WürzburgGermany Department of Biotechnology and Biophysics BiozentrumUniversity of WürzburgAm Hubland97074 WürzburgGermany Technische Physik Physikalisches Institut and Wilhelm Conrad Röntgen-Center for Complex Material SystemsUniversity of WürzburgAm Hubland97074 WürzburgGermany Division of Electron Microscopy BiozentrumUniversity of WürzburgAm Hubland97074 WürzburgGermany SUPA School of Physics and AstronomyUniversity of St AndrewsSt Andrews KY169SSUK

Single-molecule localization microscopy(SMLM)aims for maximized precision and a high signal-to-noise *** features can be provided by placing the emitter in front of a metal-dielectric nanocoating that acts as a tuned mirror2–***,we demonstrate that a higher photon yield at a lower back.round on biocompatible metal-dielectric nanocoatings substantially improves SMLM performance and increases the localization precision by up to a factor of *** resolution improvement relies solely on easy-to-fabricate nanocoatings on standard glass coverslips and is spectrally and spatially tunable by the layer design and wavelength,as experimentally demonstrated for dual-color SMLM in cells.

关键词： emitter mirror tunable

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西方漢學史(一):在華耶穌會使團

中国经学 2014年第1期 191-199页

作者： [美]孟巍隆北京大學中文系山東大學儒學高等研究院

西方漢學研究是近年來國學熱的一部分重要内容。中國在世界舞臺上影響力日見擴大,中國學日受重視,隨之而來的結果是,中國的國學研究已不屬中國的特權,反而屬於全世界所有。如今,專門從事國學研究的人,甚至國學愛好者,若欲深入研習中國... 详细信息

西方漢學研究是近年來國學熱的一部分重要内容。中國在世界舞臺上影響力日見擴大,中國學日受重視,隨之而來的結果是,中國的國學研究已不屬中國的特權,反而屬於全世界所有。如今,專門從事國學研究的人,甚至國學愛好者,若欲深入研習中國傳統文史哲課題,則務必也要關注海外的研究成果。其於國内成果,或有補苴罅漏之功,或有"旁觀者清"的獨到之見。

关键词：文史哲研究成果中國西方

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