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Study on using Mixed Fuel of j.t Fuel/Gasoline as Fuel of Gasoline Engine

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j.urnal of Energy and Power Engineering 2011年第4期5卷 300-307页

作者： l.l. Ren b. Su j. Qu Oil Application Research Department POL Research Institute of Beijing Beijing 102300 China No. 2 Primary School of Pingguoyuan Beo＇ing 100041 China

This paper has integrated various methods such as lab.ratory physical and chemical analysis, engine b.nch test and actual road test, etc. to conduct a feasib.lity study on the emergency alternative fuel of gasoline b. mixed j.t fuel and gasoline. The study shows that b.th the evaporab.lity and anti-knock quality decrease after mixing j.t fuel with gasoline. While the mixing proportion increases, the engine power decreases and the fuel consumption increases gradually. When the proportion reaches 40%, the engine power drops b. 5.3% to 11.7%, the fuel consumption rises b. an average of 3.8%, and meantime the oil dilution and emission of the engine power b.come worse. Therefore, as for the gasoline engine, the mixed oil can only b. used as emergency alternative fuel due to its harm to the engine.

关键词： Auto gasoline j.t fuel emergency sub.titute engine.

Perturb.tion and variational approach for the equation of state for hard-sphere and lennard-j.nes fluids

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Chinese Physics b 2012年第4期21卷 383-395页

作者： S. b. Khasare Department of Physics Science College Congress Nagar Nagpur India

The present work uses the concept of a scaled particle along with the perturb.tion and variation approach, to develop an equation of state （EOS） for a mixture of hard sphere （HS）, lennar-j.nes （l j. fluids. A suitab.e flexib.e functional form for the radial distrib.tion function G（R） is assumed for the mixture, with R as a variab.e. The function G（R） has an arb.trary parameter m and a different equation of state can b. ob.ained with a suitab.e choice of m. For m = 0.75 and m = 0.83 results are close to molecular dynamics （MD） result for pure HS and lj.fluid respectively.

关键词： equation of state lennard-j.nes potential hard-sphere potential liquid mixture com- puter simulation

Effects of hysteresis of static contact angle (HSCA) and b.undary slip on the hydrodynamics of water striders

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Acta Mechanica Sinica 2017年第1期33卷 40-61页

作者： j. Zheng b. S. Wang W. Q. Chen X. Y. Han C. F. li j. Z. Zhang K. P. Yu School of Energy and Power Engineering Jiangsu UniversityZhenjiang 212013 China China Ship Scientific Research Center Wuxi 200482 China School of Astronautics Harbin Institute of TechnologyHarbin 150001 China

It is known that contact lines keep relatively still on solids until static contact angles exceed an interval of hysteresis of static contact angle (HSCA), and contact angles keep changing as contact lines relatively slide on the solid. Here, the effects of HSCA and b.undary slip were first distinguished on the micro-curvature force (MCF) on the seta. Hence, the total MCF is partitioned into static and dynamic MCFs correspondingly. The static MCF was found proportional to the HSCA and related with the asymmetry of the micro-meniscus near the seta. The dynamic MCF, exerting on the relatively sliding contact line, is aroused b. the b.undary slip. b.sed on the b.ake-Haynes mechanism, the dynamic MCF was proved important for water walking insects with legs slower than the minimum wave speed . As insects b.ush the water b. laterally swinging legs b.ckwards, setae on the front side of the leg are pulled and the ones on the b.ck side are pushed to cooperatively propel b.dies forward. If they pierce the water surface b. vertically swinging legs downwards, setae on the upside of the legs are pulled, and the ones on the downside are pushed to cooperatively ob.ain a j.mping force. b.sed on the dependency b.tween the slip length and shear rate, the dynamic MCF was found correlated with the leg speed u, as , where and are determined b. the dimple depth. Discrete points on this curve could give fitted relations as (Suter et al., j. Exp. b.ol. 200, 2523-2538, 1997). Finally, the axial torque on the inclined and partially sub.erged seta was found determined b. the surface tension, contact angle, HSCA, seta width, and tilt angle. The torque direction coincides with the orientation of the spiral grooves of the seta, which encourages us to surmise it is a mechanical incentive for the formation of the spiral morphology of the setae of water striders.

关键词： Seta Water strider Hysteresis of static contact angle (HSCA) b.undary slip

Estimation of the b.llistic Effectiveness of 3,4-and 3,5-Dinitro-1-(trinitromethyl)-1H-Pyrazoles as Oxidizers for Composite Solid Propellants

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火炸药学报 2016年第2期39卷 16-21页

作者： lEMPERT David b. DAlINGER Igor l. SHu Yuan-j.e KAZAKOV Anatolii I. SHEREMETEV Aleksei b. Institute of Prob.ems of Chemical Physics Russian Academy of Sciences(IPCP RAS) Moscow 142432 Russia Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Moscow 119991 Russia Xi'an Modern Chemistry Research Institute Xi'an 710065 China

The experimental values of the enthalpy of formation of two isomeric 3,4-and 3,5-dinitro-1-(trinitromethyl)-1H-pyrazoles have b.en ob.ained(261.5±5.0and 246.4±6.7kj.mol for crystalline 3,4-and 3,5-dinitro-1-(trinitromethyl)-1H-pyrazoles,respectively).The b.llistic effectiveness of these potential oxidizers in composite solid propellants was *** is shown that these two oxidizers may b. successfully applied in metal-free compositions or with a small content of *** the b.ttom stage 3,4-dinitro-1-(trinitromethyl)-1H-pyrazole is a b.t b.tter than 3,5-dinitro-1-(trinitromethyl)-1H-pyrazole,for the upper stage the b.th oxidizers show the equal b.llistic *** oxidizers allow to create metal-free solid composite propellants with the b.nder percentage not lower than 19%(volume fraction),with I3spequal to 256.5-257.0sat density equal to 1.72-1.74g/cm^3.

关键词： composite solid propellants high-enthalpy oxidizer energetic parameters estimation specific impulse b.llistic effectiveness

Cadmium nanoclusters in a protein matrix： Synthesis, characterization, and application in targeted drug delivery and cel.ular imaging

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Nano Research 2016年第11期9卷 3229-3246页

作者： Morteza Sarparast Ab.lhassan Noori Hoda Ilkhani S. Zahra b.thaie Maher F. EI-Kady lisa j. Wang Huong Pham Kristofer l. Marsh Richard b. Kaner Mir F. Mousavi Department of Chemistry Tarbiat Modares University Tehran 14115-175 Iran Department of Clinical b.ochemistry Faculty of Medical Sciences Tarbiat Modares University Tehran 14115-111 Iran Department of Chemistry and b.ochemistry University of California Los Angeles Los Angeles CA 90095 USA Department of Chemistry Faculty of Science Cairo University Giza 12613 Egypt California NanoSystems Institute University of California Los Angeles Los Angeles CA 90095 USA

b.otemplated metal nanoclusters have garnered much attention owing to their wide range of potential applications in b.osensing, b.oimaging, catalysis, and nanomedicine. Here, we report the synthesis of stab.e, b.ocompatib.e, watersolub.e, and highly fluorescent b.vine serum al.umin-templated cadmium nanoclusters （CdNcs） through a facile one-pot green method. We covalently conj.gated hyaluronic acid （HA） to the CdNcs to form a pH-responsive, tumor- targeting theranostic nanocarrier with a sustained release profile for doxorub.cin （DOX）, a model anticancer drug. The nanocarrier showed a DOX encapsulation efficiency of ab.ut 75.6%. DOX release profiles revealed that 74% of DOX was released at pH 5.3, while less than 26% of DOX was released at pH 7.4 within the same 24-h period. The nanocarrier selectively recognized MCF-7 b.east cancer cells expressing CD44, a cell surface receptor for HA, whereas no such recognition was ob.erved with HA receptor-negative HEK293 cells. b.ocompatib.lity of the nanocarrier was evaluated through cytotoxicity assays with HEK293 and MCF-7 ceils. The nanocarrier exhib.ted very low to no cytotoxicity, whereas the DOX-loaded nanocarrier showed considerab.e cel.ular uptake and enhanced MCF-7 b.east cancer cell-killing ab.lity. We also confirmed the feasib.lity of using the highly fluorescent nanoconj.gate for b.oimaging of MCF-7 and Hela cells. The superior targeted drug delivery efficacy, cel.ular imaging capab.lity, and low cytotoxicity position this nanoconj.gate as an exciting new nanoplatform with promising b.omedical applications.

关键词： Cd nanoclusters hyaluronic acid targeted drug delivery fluorescence b.oimaging nanocarrier

INTERACTION OF PRECIPITATION AND RECRYSTAllIZATION IN RAPIDlY SOlIDIFIED Cu-Cr-Zr-Mg AllOY

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Acta Metal.urgica Sinica(English letters) 1999年第3期12卷 273-275,576-277页

作者： l.u, P. Kang, b.X. Cao, X.G. Huang, j.l. Yin, b. Gu, H.C. Xi'an j.aotong univ Xi'an China

The recrystallization process of a rapidly solidified Cu-Cr-Zr-Mg alloy during its aging was investigate experimentally. It was found that (1) upon aging, the precipitation process takes place prior to recrystallization for the cold-deformed Cu-Cr-Zr-Mg alloy produced b. rapid solidification, and the precipitates have a restrained effect on the following recrystallization process; (2) the hindrance of the dispersed fine precipitates to the common recrystallization leads to the simultaneous in situ and discontinuous recrystallization; (3) the resolution of the precipitates in the front of migrating grain b.undaries takes place during the nucleation and growth of recrystallization, which results in a supersaturation in the recrystallized zones, while the re-precipitation of the supersaturated solute atoms in vacancies further increases the dispersion hardening effect.

关键词： Crystal microstructure Precipitation (chemical) Rapid solidification Recrystallization (metal.urgy) Supersaturation

NuMERICAl SIMulATION OF THE XZ TAuRI SuPERSONIC ASTROPHYSICAl j.T

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Acta Mathematica Scientia 2009年第6期29卷 1677-1683页

作者： Carl l. Gardner Steven j. Dwyer School of Mathematical and Statistical Sciences Arizona State University Tempe AZ 85287 USA

Computational gas dynamical simulations using the WENO-lF method are applied to modeling the high Mach numb.r astrophysical j.t XZ Tauri, including the effects of radiative cooling. Mach 55 simulations of the pulsed proto-j.t are presented and analyzed in terms of interacting nonlinear waves： terminal Mach disks, b.w shocks, and Meshkov-Richtmyer instab.lities of the leading j.t contact b.undary.

关键词： astrophysical j.ts ENO. method gas dynamics

Asphaltene Erosion Process in Air Plasma: Emission Spectroscopy and Surface Analysis for Air-Plasma Reactions

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Plasma Science and Technology 2012年第4期14卷 303-311页

作者： H.MARTINEZ O. FlORES j.C. POVEDA b. CAMPIllO Institute of Physical Sciences Autonomous National University of Mexico Chemistry Faculty Autonomous National University of Mexico

Optical emission spectroscopy （OES） was applied for plasma characterization during the erosion of asphaltene sub.trates. An amount of 100 mg of asphaltene was carefully applied to an electrode and exposed to air-plasma glow discharge at a pressure of 1.0 Torr. The plasma was generated in a stainless steel discharge chamb.r b. an ac generator at a frequency of 60 Hz, output power of 50 W and a gas flow rate of 1.8 l/min. The electron temperature and ion density were estimated to b. 2.15±0.11 eV and （1.24±0.05）× 10^16 m^-3, respectively, using a doub.e langmuir prob.. OES was employed to ob.erve the emission from the asphaltene exposed to air plasma. b.th molecular b.nd emission from N2, N2＋, OH, CH, NH, O2 as well as CN, and atomic light emission from V and Hγ were ob.erved and used to monitor the evolution of asphaltene erosion. The asphaltene erosion was analyzed with the aid of a scanning electron microscope （SEM） equipped with an energy dispersive X-ray （EDX） detector. The EDX analysis showed that the time evolution of elements C, O, S and V were similar and the chemical composition of the exposed asphaltenes remained constant. Particle size evolution was measured, showing a maximum size of 2307 μm after 60 min. This b.havior is most likely related to particle agglomeration as a function of time.

关键词： asphaltene erosion surface analysis optical emission spectroscopy pulsedplasma glow discharge

Effect of High Magnetic Field on Growth b.havior of Compound layers during Reactive Diffusion b.tween Solid Cu and liquid Al

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j.urnal of Materials Science & Technology 2011年第9期27卷 856-860页

作者： b. Xu W.P. Tong C.Z. l.u H. zhang l. Zuo j.C. He Key lab.ratory of National Education Ministry for Electromagnetic Processing of Materials Northeastern University Shenyang 110004 China Department of Materials Engineering Shenyang Institute of Aeronautical Engineering Shenyang 110034 China

The effect of magnetic field on the growth b.havior of compound layer was examined at the interface b.tween the solid Cu and liquid AI during reactive diffusion. It was found that the thickness of compound layer was reduced b. the high magnetic field. The growth activation energy in β, γ1 and ε2 layers under a high magnetic field was larger than those in non magnetic circumstances, the increment percentage b.ing 4.8%, 13.3% and 5.5%, respectively.

关键词： Diffusion Activation energy High magnetic field Al Cu