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Performance Characteristics of n-Butanol-Diesel Fuel Blend Fired in a Turbo-Charged Compression Ignition Engine

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Journal of Power and Energy Engineering 2013年第5期1卷 77-83页

作者： Lennox Siwale luk.cs kristóf Torok Adam Akos Bereczky Antal Penninger Makame Mbarawa kolesnikov Andrei Department of Mechanical Engineering Tshwane University of Technology Private Bag X680 Pretoria South Africa 2Department of Energy Engineering Budapest University of Technology and Economics Budapest Hungary 3Ministry of Communication Science and Technology United Republic of Tanzania Department of Energy Dar-es-Salaam United Republic of Tanzania. Department of Mechanical Engineering Tshwane University of Technology Private Bag X680 Pretoria South Africa 2Department of Energy Engineering Budapest University of Technology and Economics Budapest Hungary 3Ministry of Communication Science and Technology United Republic of Tanzania Department of Energy Dares-Salaam United Republic of Tanzania.

In this study, n-butanol-diesel blends were burned in a turbo-charged, direct injection diesel engine where the brake thermal efficiency, (BTE) or brake specific fuel consumption, (BSFC) was compared with that of ethanol-diesel or methanol-diesel blends in another study by other authors. The test blends used were B5, B10 and B20 (where B5 is 5% n-butanol by volume and 95% diesel fuel-DF). In this study, the BTE was higher and the BSFC improved more than in the other study. Because of improved BTE with increasing brake mean effective pressure, BMEP, the BSFC reduced, however the increased shared volume of n-butanol in DF increased BSFC. Adding n-butanol in DF slightly derated the torque, brake power output with increasing speed, and caused a fall in exhaust gas temperatures, (EGT) which improves the volumetric efficiency and reduces compression work. Therefore, a small-shared volume of n-butanol in DF fired in a turbo-charged diesel engine performs better in terms of BTE and BSFC than that of ethanol or methanol blending in DF.

关键词： Brake Specific Fuel Consumption Brake Thermal Efficiency Exhaust Gas Temperature n-Butanol/Diesel

Lead isotope evolution of the Central European upper mantle:Constraints from the Bohemian Massif

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Geoscience Frontiers 2020年第3期11卷 925-942页

作者： Simona krmíckova luk.s krmícek Rolf L.Romer Jaromír Ulrych Department of Geological Sciences Faculty of ScienceMasaryk UniversityKotlarska 2CZ-61137BrnoCzech Republic Institute of Geology of the Czech Academy of Sciences Rozvojova 269CZ-16502Prague 6Czech Republic Brno University of Technology Faculty of Civil EngineeringAdMaS CentreVeverí95CZ-60200BrnoCzech Republic Deutsches GeoForschungsZentrum GFZ TelegrafenbergD-14473PotsdamGermany

The Pb isotope composition of the upper mantle beneath Central Europe is heterogeneous due to the subduction of regionally contrasting material during the Variscan and Alpine *** Variscan to Cenozoic mantlederived melts allow mapping this heterogeneity on a regional scale for the last ca.340 *** Cretaceous and Cenozoic anorogenic magmatic rocks of the Bohemian Massif(lamprophyres,volcanic rocks of basanite/tephrite and trachyte/phonolite series) concentrate mostly in the Eger *** ultramafic lamprophyres yielded the most radiogenic Pb isotope signatures reflecting a maximum contribution from metasomatised lithospheric mantle,whereas Tertiary alkaline lamprophyres originated from mantle with less radiogenic ^(206)Pb/^(204)b ratios suggesting a more substantial modification of lithospheric source by interaction with asthenosphericderived *** volcanic rocks of the basanite/tephrite and trachyte/phonolite series define a linear mixing trend between these components,indicating dilution of the initial lithospheric mantle signature by upwelling asthenosphere during *** Pb isotope composition of Late Cretaceous and Cenozoic magmatic rocks of the Bohemian Massif follows the same Pb growth curve as Variscan orogenic lamprophyres and lamproites that formed during the collision between Laurussia,Gondwana,and associated *** implies that the crustal Pb signature in the post-Variscan mantle is repeatedly sampled by younger anorogenic *** Cenozoic mantle-derived rocks of Central Europe show similar Pb isotope ranges as the Bohemian Massif.

关键词： Lead isotopes Lamprophyres Volcanic rocks Mantle components Bohemian massif Variscan orogeny

Antibody and T cell responses against wild-type and Omicron SARS-CoV-2 after third-dose BNT162b2 in adolescents

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Signal Transduction and Targeted Therapy 2023年第1期8卷 266-275页

作者： Xiaofeng Mu Carolyn A.Cohen Daniel Leung Jaime S.Rosa Duque Samuel M.S.Cheng Yuet Chung Howard H.W.Wong Amos M.T.Lee Wing Yan Li Issan Y.S.Tam Jennifer H.Y.Lam Derek H.L.Lee Sau Man Chan Leo C.H.Tsang karl C.k.Chan John k.C.Li Leo L.H.luk.Sara Chaothai kelvin k.H.kwan Nym Coco Chu Masashi Mori Trushar Jeevan Ahmed kandeil Richard JWebby Wenwei Tu Sophie A.Valkenburg Malik Peiris Yu Lung Lau Department of Paediatrics and Adolescent Medicine The University of Hong KongHong KongChina HkU-Pasteur Research Pole School of Public HealthThe University of Hong KongHong KongChina School of Public Health The University of Hong KongHong KongChina Research Institute for Bioresources and Biotechnology Ishikawa Prefectural UniversityNonoichiJapan Department of Infectious Diseases St Jude Children’s Research HospitalMemphisTNUSA Department of Microbiology and Immunology Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia Centre for Immunology&Infection C2i Hong KongChina

The high effectiveness of the third dose of BNT162b2 in healthy adolescents against Omicron BA.1 has been reported in some studies,but immune responses conferring this protection are not yet *** this analysis,our study(NCT04800133)aims to evaluate the humoral and cellular responses against wild-type and Omicron(BA.1,BA.2 and/or BA.5)SARS-CoV-2 before and after a third dose of BNT162b2 in healthy *** 5 months after 2 doses,S IgG,S IgG Fc receptor-binding,and neutralising antibody responses waned significantly,yet neutralising antibodies remained detectable in all tested adolescents and S IgG avidity increased from 1 month after 2 *** antibody responses and S-specific IFN-γ^(+)and IL-2^(+)CD8^(+)T cell responses were significantly boosted in healthy adolescents after a homologous third dose of *** to adults,humoral responses for the third dose were non-inferior or superior in *** S-specific IFN-γ^(+)and IL-2^(+)CD4^(+)and CD8^(+)T cell responses in adolescents and adults were comparable or ***,after 3 doses,adolescents had preserved S IgG,S IgG avidity,S IgG FcγRIIIa-binding,against Omicron BA.2,as well as preserved cellular responses against BA.1 S and moderate neutralisation levels against BA.1,BA.2 and *** from 100 and 96%of adolescents tested at 1 and 5 months after two doses could also neutralise *** study found high antibody and T cell responses,including potent cross-variant reactivity,after three doses of BNT162b2 vaccine in adolescents in its current formulation,suggesting that current vaccines can be protective against symptomatic Omicron disease.

关键词： doses neutral protective

Photonic lenses with whispering gallery waves at Janus particles

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Opto-Electronic Science 2022年第2期1卷 1-9页

作者： Igor V.Minin Oleg V.Minin Yinghui Cao Bing Yan Zengbo Wang Boris luk.yanchuk Tomsk Polytechnic University 36 Lenin AvenueTomsk 634050Russia College of Computer Science and Technology Jilin University2699 Qianjin StreetChangchun 130012China School of Computer Science and Electronic Engineering Bangor UniversityDean StreetBangorGwyneddLL571UTUK Faculty of Physics Lomonosov Moscow State UniversityMoscow 119991Russia

We show that electric field on the plane surface of truncated sphere or cylinders(so called Janus particles)have sharp resonances versus the depth of removed segment of a sphere or *** resonances are related to the excited whispering gallery waves caused by *** is a new mechanism of the field *** of this effect for cylinders permits to reach a super resolution in the line thickness,which can be used for contact optical lithography.

关键词： photonics whispering gallery mode whispering gallery waves Janus particles

Teaching chronic obstructive airway disease patients using a metered-dose inhaler

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Chinese Medical Journal 2006年第19期119卷 1669-1672页

作者： Ho-Hoi luk.Po-May Chan Fong-Fong Lam kit-Yu Lau Sze-Yee Chiu Yuet-Ling Fung Janet Pang Department of Pharmacy Tung Wah Hospital Hong Kong China Department of General Out-patient Tung Wah Hospital Hong Kong China

Asthma and chronic obstructive airway disease ,（COAD） are chronic inflammatory disorders of the airways which are usually associated with widespread airway obstruction that is often relieved by treatment. β2-adrenoreceptor agonists and corticosteriods are the mainstay of the management of this disease. The preferred route of administration of these agents is by inhalation. This allows the drug to be delivered directly to the airway with more rapid relief and fewer side effects than systemic route. The main disadvantage of metered-dose inhaler （MDI） use is that the correct use requires good technique;

关键词： chronic obstructive airway disease metered-dose inhaler patient education

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温针围刺治疗风寒阻络型网球肘的临床研究

温针围刺治疗风寒阻络型网球肘的临床研究

作者：陆霆皓（TingHo luk. 广州中医药大学

学位级别：硕士

目的:本文欲通过一项RCT比较温针围针疗法与毫针疗法治疗风寒阻络型网球肘的临床疗效,主要是通过VAS视觉模拟评分、Mayo肘关节活动功能评分及视觉模拟量表评估两组的临床疗效,从而得出温针围针疗法治疗风寒阻络型网球肘的有效性及劣势,... 详细信息

目的:本文欲通过一项RCT比较温针围针疗法与毫针疗法治疗风寒阻络型网球肘的临床疗效,主要是通过VAS视觉模拟评分、Mayo肘关节活动功能评分及视觉模拟量表评估两组的临床疗效,从而得出温针围针疗法治疗风寒阻络型网球肘的有效性及劣势,为温针围针疗法治疗风寒阻络型网球肘提供临床依据,从而促进其临床上治疗网球肘的推广。方法:采用随机对照法,将60例来自广州中医药大学第一附属医院针灸门诊就诊的且符合中西医诊断标准的风寒络型网球肘患者分为治疗组(30例)和对照组(30例),其中对照组以毫针疗法进行治疗,治疗组在毫针疗法针刺周围加温针治疗。3天/次,3次/周期,共3个周期。其中,Mayo肘关节活动功能评分和VAS视觉模拟评分分别作为本研究的主要终点及次要终点。然后使用统计软件SPSS 22.0对数据进行处理、整合和分析,最后根据分析结果,初步得出温针围针疗法治疗风寒阻络型网球肘的有效性及劣势。结果:1.基线比较:治疗前,对两组患者的性别、年龄、Mayo肘关节活动度评分、VAS视觉模拟评分等方面进行比较,提示数据均无统计学意义(P>0.05),提示两组患者的性别具有可比性。2.疗效比较:治疗组的总有效率90.0%显着优于对照组83.3%(P<0.05),提示温针围针疗法治疗风寒阻络型网球肘较单纯亳针刺疗法具有更好的临床疗效。***肘关节活动功能评分比较:治疗后两组患者的Mayo肘关节活动功能评分较治疗前均得到明显改善(P<0.05),且治疗组的Mayo肘关节活动功能评分较对照组改善更优(P<0.05),提示温针围针疗法治疗风寒阻络型网球肘较单纯亳针刺疗法疗效更优。***肘关节活动功能评分比较:治疗后两组患者的Mayo肘关节活动功能评分较治疗前均得到明显下降(P<0.05),且治疗组的Mayo肘关节活动功能评分下降程度较对照组更低(P<0.05)。***视觉模拟评分比较:两治疗后两组患者的VAS视觉模拟评分较治疗前均得到明显下降(P<0.05),且治疗组的VAS视觉模拟评分下降程度较对照组更低(P<0.05),提示温针围针疗法治疗风寒阻络型网球肘对于减轻患者疼痛的效果较单纯亳针刺疗法效果更佳,可以更好的上缓解患者的疼痛。结论:本研究发现毫针刺法结合温针灸围灸法和单纯毫针刺法对风寒阻络型网球肘均具有较好的临床疗效,且温针围针疗法治疗风寒阻络型网球肘更具优势,为温针围针疗法治疗风寒阻络型网球肘提供临床依据,从而促进其临床上治疗网球肘的推广。

关键词：网球肘风寒阻络型网球肘针刺

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幽游乐园

城市住宅 2000年第4期7卷 52-61页

作者： Tony luk.Dick Liu 乐陶陆化廊

回忆晶片每逢上班的日子,步伐总是匆匆忙忙,在熙来攘往的街道上左穿右插,实在很少细心留意身边的人物的景象。或许是对上班的路程太过熟悉的缘故吧,以至沿途的一景一物,都彷佛已被摄入脑海中:位于街口转角的报摊。

关键词：居室室内设计二层复式 295m^2 室内装饰

Micro-architectural and nano-mechanical properties of trabecular bone with strontium treatment in osteoporotic goats

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Micro-architectural and nano-mechanical properties of trabec...

Magnesium-based Polycaprolactone Porous Bone Scaffold for Large Bone Defect Management

International Conference on Osteoporosis and Bone Research 2008

作者： William W.Lu Peter k.Y.Chiu Wing Moon Lam kenneth M.C.Cheung David Fang John C.Y.Leong keith D.k.luk Department of Orthopaedics and Traumatology The University of Hong Kong The Open University of Hong kong Hong KongChina

＜正＞Introduction:Strontium （Sr） is one of the most exciting concepts in the field of osteoporosis treatment by concomitantly inhibiting bone resorption and enhancing bone ***,we developed a Sr fortified calcium ...

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Magnesium-based Polycaprolactone Porous Bone Scaffold for La...