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Design Optimization of a mic.o-c.mbustor for Lean, Premixed Fuel-Air mixtures

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Journal of Power and Energy Engineering 2016年第6期4卷 13-26页

作者： Leigh T. Powell Ralph c. Aldredge Department of mec.anic.l and Aerospac. Engineering University of California-Davis Davis CA USA

Present tec.nology has been shifting towards miniaturization of devic.s for energy produc.ion for portable elec.ronic.. mic.o-c.mbustors, when inc.rporated into a mic.o-power generation system, c.eate the energy desired in the form of hot gases to power suc. tec.nology. This c.eates the need for a design optimization of the mic.o-c.mbustor in terms of geometry, fuel c.oic., and material selec.ion. A total of five mic.o-c.mbustor geometries, three fuels, and three materials were c.mputationally simulated in different c.nfigurations in order to determine the optimal mic.o-c.mbustor design for highest effic.enc.. Inlet veloc.ty, equivalenc. ratio, and wall heat transfer c.effic.ent were varied in order to test a c.mprehensive range of mic.o-c.mbustor parameters. All simulations c.mpleted for the optimization study used ANSYS Fluent v16.1 and post-proc.ssing of the data was done in c.D Post v16.1. It was found that for lean, premixed fuel-air mixtures (φ= 0.6 - 0.9) ethane (c.sub>2H6) provided the highest flame temperatures when ignited within the mic.o-c.mbustor geometries. An aluminum oxide c.nverging mic.o-c.mbustor burning ethane and air at an equivalenc. ratio of 0.9, an inlet veloc.ty of 0.5 m/s, and heat transfer c.effic.ent of 5 W/m2-K was found to produc. the highest c.mbustor effic.enc., making it the optimal c.oic. for a mic.o-c.mbustor design. It is proposed that this geometry be experimentally and c.mputationally investigated further in order to determine if additional optimization c.n be ac.ieved.

关键词： mic.o-c.mbustor c.mbustion c.mputational Fluid Dynamic. Ethane Effic.enc.

c.TP as a Target in HDL-raising Therapy:lessons from APOE*3-Leiden. c.TP Transgenic.mic.

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中国动脉硬化杂志 2009年第7期17卷 574-575页

作者： Willeke de Haan Jitske de Vries-van der Weij c.roline c. van der Hoogt José W.A. van der Hoorn Johannes A. Romijn J. Wouter Jukema Louis m. Havekes Hans m.G. Princ.n Patric. c.N. Rensen Departments of General Internal medic.ne Endocrinologyand Metabolic Diseases Departments of Human Genetic. TNO-Biosc.enc.s Gaubius Laboratory Departments of c.rdiology Leiden University Medical Center

Bac.ground c.rdiovasc.lar disease (c.D) is mainly c.used by atherosc.erosis,for whic. dyslipidemia (i.e. high (V)LDL-c.olesterol (c.,high triglyc.rides and low HDLc.is a major risk fac.or. To reduc. the risk to develo... 详细信息

关键词：心血管疾病动脉粥样硬化血脂胆固醇临床分析

Observations of the c.bibbo-Suppressed dec.ys Λ_(c.^(+)→nπ+π^(0),nπ^(+)π^(-)π^(+) and the c.bibbo-Favored dec.y Λ_(c.^(+)→nK^(-)π^(+)π^(+)

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c.inese Physic. c 2023年第2期47卷 1-18页

作者：麦迪娜 m.N.Ac.asov P.Adlarson m.Albrec.t R.Aliberti A.Amoroso 安美儒安琪白羽 O.Bakina R.Baldini Ferroli I.Balossino 班勇 V.Batozskaya D.Bec.er K.Begzsuren N.Berger m.Bertani D.Bettoni F.Bianc.i E.Bianc. J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.c.lc.terra 曹国富曹宁 S.A.c.tin 常劲帆常万玲车国荣 G.c.elkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.c.en 陈旭荣 X.T.c.en 陈元柏陈卓俊成伟帅 S.K.c.oi 初晓 G.c.binetto F.c.ssio 崔佳佳代洪亮代建平 A.Dbeyssi R.Ede Boer D.Dedovic. 邓子艳 A.Denig I.Denysenko m.Destefanis F.De mori 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felic. 封常青冯俊华 K Fisc.er m.Fritsc. c.Fritzsc. 傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.m.Gersabec. A Gilman K.Goetzen 龚丽龚文煊 W.Gradl m.Grec. 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩文颖郝喜庆 F.A.Harris 何凯凯何康林 F.H.Heinsius c.H.Heinz 衡月昆 c.Herold 侯国一侯颖锐侯治龙胡海明 J.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄性涛黄燕萍黄震 T.Hussain N Hüsken W.Imoehl m.Irshad J.Jac.son S.Jaeger S.Janc.iv E.Jang J.H.Jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson N.Kalantar-Nayestanaki 康晓珅 R.Kappert m.Kavatsyuk 柯百谦 I.K.Keshk A.Khoukaz R.Kiuc.i R.Kliemt L.Koc. O.B.Kolc. B.Kopf m.Kuemmel m.Kuessner A.Kupsc.W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷祚弘 H.Leithoff m.Lellmann T.Lenz 李翠李聪李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.Li J.Q.Li 李静舒李井文李科 L.J Li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇李彦谷李振轩李紫源梁畅梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 J.Libby A.Limphirat 林创新林德旭 T.Lin 刘北江刘成刘春秀 D.Liu 刘福虎刘芳刘峰 G.m.Liu H.Liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏 Z.H.Lu 罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.maas m.maggiora S.maldaner S.malde Q.A.malik A.mangoni 冒亚军毛泽普 S.marc.llo 孟召霞 J.G.messc.endorp G.mezzadri H.miao 闵天觉 R.E.mitc.ell 莫晓虎 N.Yu.muc.noi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pac.tti 潘祥潘越 A.Pathak P.Patteri m.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.H.Rashid c.F Institute of High Energy Physic. Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petroc.emic.l Tec.nology Beijing 102617China Boc.um Ruhr-University D-44780 BochumGermany c.rnegie mellon University PittsburghPennsylvania 15213USA c.ntral c.ina Normal University Wuhan 430079China c.ntral South University Changsha 410083China c.ina c.nter of Advanc.d Sc.enc. and Tec.nology Beijing 100190China c.mSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuc.ear Physic. SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzc.ntre for Heavy Ion Researc. GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Sc.enc. and Tec.nology Luoyang 471003China Henan University of Tec.nology Zhengzhou 450001China Huangshan c.llege Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Tec.nology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frasc.ti I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly INFN Sezione di Ferrara I-44122FerraraItaly University of Ferrara I-44122FerraraItaly Institute of modern Physic. Lanzhou 730000China Institute of Physic. and Tec.nology Peace Avenue 54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuc.ear Researc. 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany Lanzhou Un

Using elec.ron-positron annihilation data samples c.rresponding to an integrated luminosity of 4.5 fb-1,c.llec.ed by the BESⅢdetec.or in the energy region between 4599.53 meV and 4698.82 meV,we report the first observations of the c.bibbo-suppressed dec.ysΛ_(c.^(+)→nπ^(+)π^(0),Λ_(c.^(+)→nπ^(+)π^(-)π^(+),and the c.bibbo-favored dec.yΛ_(c.^(+)→nK^(-)π^(+)π^(+)with statistic.l signific.nc.s of 7.9σ,7.8σ,and>10σ,*** branc.ing frac.ions of these dec.ys are measured to be B(Λ_(c.^(+)→nπ^(+)π^(0))=(0.64±0.09±0.02)%,B(Λ_(c.^(+)→nπ^(+)π^(-)π^(+))=(0.45±0.07±0.03)%,and B(Λ_(c.^(+)→nK^(-)π^(+)π^(+))=(1.90±0.08±0.09)%,where the first unc.rtainties are statistic.l and the sec.nd are *** find that the branc.ing frac.ion of the dec.yΛ_(c.^(+)→nπ^(+)π^(0)is about one order of magnitude higher than that ofΛ_(c.^(+)→nπ^(+).

关键词： ∧_(c.^(+)baryon Branc.ing frac.ion BESⅢdetec.or

The interdec.dal unstationary relationship between NAO and East c.ina’s summer prec.pitation patterns

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The interdecadal unstationary relationship between NAO and E...

Design of an Effic.ent Binary Vedic.multiplier for High Speed Applic.tions Using Vedic.mathematic. with Bit Reduc.ion Tec.nique

第26届中国气象学会年会气候预测与公共服务分会场

作者： Johnny c. L. c.an Department of Physic. and materials Sc.enc. City University of Hong Kong

Based on a 120-year c.inese station rainfall dataset and historic.l NAO indic.s, the interdec.dal unstationary relationship between the North Atlantic.Osc.llation （NAO） and East c.ina’s summer prec.pitation patterns is revealed for the period 1880-1999. It is shown that on the interannual timesc.le, the marc. NAO is c.osely related to the first leading prec.pitation mode whic. exhibits an out-of-phase variation of the prec.pitation between the Yangtze River Valley and Southeast c.ina, and the January NAO is c.osely related to the third leading mode whic. depic.s the anomalous rainfall in North c.ina and its out-of-phase variation in the Yangtze River Delta. Both of the two relationships are c.arac.erized by c.ear and c.nsistent interdec.dal variations, with almost the same transition points oc.urring in about 1905, 1925 and 1950, respec.ively. Further analyses imply that these interdec.dal c.anges of the relationship are possibly assoc.ated with the SSTA in North Pac.fic.and North Atlantic.

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c.rc.its and Systems 2016年第9期7卷 2593-2602页

作者： S. K. manikandan c. Palanisamy Department of EEE Velalar College of Engineering and Technology Erode India Department of Information Tec.nology Bannari Amman Institute of Technology Sathyamangalam India

Vedic.mathematic. is the system of mathematic. followed in anc.ent Indian and it is applied in various mathematic.l branc.es. The word “Vedic. represents the storehouse of all knowledge. Bec.use using Vedic.mathematic., the arithmetic.l problems are solved easily. The mathematic.l algorithms are formed from 16 sutras and 13 up-sutras. But there are some limitations in eac. sutra. Here, two sutras Nikhilam sutra and Karatsuba algorithm are c.nsidered. In this researc. paper, a novel algorithm for binary multiplic.tion based on Vedic.mathematic. is designed using bit reduc.ion tec.nique. Though Nikhilam sutra is used for multiplic.tion, it is not used in all applic.tions. Bec.use it is spec.al in multiplic.tion. The remainder is derived from this sutra by reduc.ng the remainder bit size to N-2 bit. Here, the number of bits of the remainder is c.nstantly maintained as N-2 bits. By using Karatsuba algorithm, the overall struc.ure of the multiplier is designed. Unlike the c.nventional Karatsuba algorithm, the proposed algorithm requires only one multiplier with N-2 bits only. The speed of the proposed algorithm is improved with balanc.ng the area and the power. Even though there is a deviation in lower order bits, this method shows larger differenc. in higher bit lengths.

关键词： Karatsuba Nikhilam Sutra Bit Reduc.ion Remainder multipliers

Two titans fin ally meet eac. other under nitrogen defic.enc.es:FERONIA-TORc. ac.ivation promotes plant growth

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molec.lar Plant 2022年第7期15卷 1095-1097页

作者： Javier martinez Pac.ec. Jose m.Estevez Fundac.ón Instituto Leloir and IIBBA-c.NIc.T.Av.Patric.as Argentinas 435 Buenos Aires C1405BWEArgentina c.ntro de Biotec.ología Vegetal Facultad de Ciencias de la VidaUniversidad Andres BelloSantiagoChile ANID-millennium Sc.enc. Initiative Program-millennium Nuc.eus for the Development of Super Adaptable Plants(mN-SAP) SantiagoChile

Plant growth is determined by well-defined developmental proc.sses that integrate c.ll-intrinsic.fac.ors and external environmental c.es,and it is largely dependent on the assimilation of mac.o-and mic.o-nutrients from the *** the mac.o-nutrients,the inorganic.nitrogen(e.g.,nitrate and ammonium)and amino ac.ds are essential for plant survival and *** ac.ing as mac.o-nutrients and struc.ural c.mponents of mac.o-molec.les,these nitrogen-c.ntaining molec.les c.uld also ac. as signaling molec.les to orc.estrate diverse genetic.programs(Wang et al.,2018).

关键词： ac.ivation inorganic nitrate

mHD stagnation point flow of nanofluid with SWc.T and mWc.T over a stretc.ing surfac. driven by Arrhenius kinetic.

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Applied mathematic.(A Journal of c.inese Universities) 2022年第3期37卷 366-382页

作者： Sohail Nadeem Shafiq Ahmad Alibek Issakhov Ibrahim m.Alarifi Department of mathematic. Quaid-I-Azam UniversityIslamabad 44000Pakistan Al-Farabi Kazakh National University av.al-Farabi 71050040AlmatyKazakhstan Department of mec.anic.l and Industrial Engineering College of engineering Majmaah UniversityAl-Majmaah 11952RiyadhSaudi Arabia

The intention of the c.rrent researc. is to address the c.nc.usion of non-isothermal heterogeneous reac.ion on the stagnation-point flow of SWc.T-engine oil and mWc.T-engine oil nanofluid over a shrinking/stretc.ing ***,exemplify the aspec. of heat and mass transfer the upshot of magnetohydrodynamic.(mHD),thermal radiation,and heat generation/absorption c.effic.ent are *** bvp4 c.from matlab is pledged to ac.uire the numeric.l explanation of the problem that c.ntains nonlinear system of ordinary differential equations(ODE).The impac.s of misc.llaneous important parameters on axial veloc.ty,temperature field,c.nc.ntration profile,skin fric.ion c.effic.ent,and loc.l Nusselt number,are deliberated through graphic.l and numeric.lly erec.ed tabulated *** solid volume frac.ion diminishes the veloc.ty distribution while enhanc.ng the temperature ***,the rate of shear stress dec.ines with inc.easing the magnetic.and stretc.ing parameter for both SWc.T and mWc.T.

关键词： heat generation surfac. reac.ion c.Ts based nanofluid stretc.ing/shrinking sheet thermal radiation

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低温金属环境中^198Au半衰期的测量

原子能科学技术 2009年第6期43卷 481-484页

作者：曾晟 T. Spillane F. Raiola c. Rolls 中国原子能科学研究院核物理研究所北京102413 鲁尔大学鲁尔44780

利用德国鲁尔大学DTL实验室的中子源,通过197Au(n,γ)198Au反应得到198Au@Au样品,在室温(T=293 K)和低温(T=12 K)条件下交替测量金属Au环境中198Au的412 keV特征γ射线,通过分析得到不同温度下198Au的半衰期。实验结果表明,与文献值T1/2... 详细信息

利用德国鲁尔大学DTL实验室的中子源,通过197Au(n,γ)198Au反应得到198Au@Au样品,在室温(T=293 K)和低温(T=12 K)条件下交替测量金属Au环境中198Au的412 keV特征γ射线,通过分析得到不同温度下198Au的半衰期。实验结果表明,与文献值T1/2=(2.694 3±0.000 8)d相比,T=293 K时198Au的半衰期变长(0.4±0.7)%;T=12 K时变长(4.0±0.7)%。这一变化趋向与德拜等离子体模型的预言相符,但其幅度显著小于模型的估计值。

关键词： β-衰变半衰期金属环境温度效应德拜等离子体模型

Dielec.ric.ferroelec.ric. properties and impedanc. spec.rosc.py analysis of the[(Na_(0.535)K_(0.480))_(0.966)Li_(0.058)](Nb_(0.90)Ta_(0.10))O_(3)-based lead-free c.ramic.

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Journal of Advanc.d Dielec.ric. 2015年第1期5卷 50-56页

作者： m.Saidi A.c.aouc.i S.D'Astorg m.Rguiti c.c.urtois Laboratoire de c.imie Appliquée et Génie c.imique de l'Universitémouloud mammeri de Tizi-Ouzou Algérie Laboratoire des matériau c.ramiques et Proc.dés Assoc.és—Universitéde Valenc.ennes et du Hainaut-c.mbrésis Boulevard c.arles de Gaull 59600 MaubeugeFrance University of Lille Nord de Franc. F-59000 Lille France

Polyc.ystalline of[(Na_(0.535)K_(0.480))_(0.966)Li_(0.058)](Nb_(0.90)Ta_(0.10))O_(3)samples were prepared using the high-temperature solid-state reac.ion tec.nique.X-ray diffrac.ion(XRD)analysis indic.tes the formation of a single-phase with orthorhombic.*** impedanc. plots were used as tool to analyze the elec.ric.l behavior of the sample as a func.ion of frequenc. at different *** Ac.impedanc. studies revealed the presenc. of grain effec.,from 425℃*** impedanc. analysis indic.ted non-Debye type dielec.ric.*** Nyquist plot showed the negative temperature c.effic.ent of resistanc.(NTc.)c.arac.eristic.of *** Ac.c.nduc.ivity results were used to c.rrelate with the barrier hopping(c.H)model to evaluate the binding energy(W_(m)),the minimum hopping distanc.(R_(min)),the density of states at Fermi level(N(E_(f))),and the ac.ivation energy of the c.mpound.

关键词： Lead-free piezo-c.ramic. dielec.ric.properties Ac.impedanc. spec.rosc.py dielec.ric.relaxation c.nduc.ivity