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基于摩擦伏特效应的超滑表征技术

Science Bulletin 2024年第9期69卷 1197-1201页

作者：王昭政高凯冯源曹杰宫礼坤范贝贝张毅解国新张弛 CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China State Key Laboratory of Tribology in Advanced Equipment Tsinghua UniversityBeijing 100084China School of Nanoscience and Engineering University of Chinese Academy of SciencesBeijing 100049China School of Electrical&Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore Center on Nanoenergy.Research School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Institute of Intelligent Flexible Mechatronics Jiangsu UniversityZhenjiang 212013China Institute of New Materials and Advanced Manufacturing Beijing Academy of Science and TechnologyBeijing 100084China

Friction occurs in our daily lives, and statistics have shown that it consumes approximately 1/3 of the primary energy. In addition,mechanical interface friction significantly impacts the efficiency,noise, accuracy, corrosion, reliability, and operational lifespans of equipment. Several studies have revealed various methods for reducing the coefficient of friction (COF) to the superlubricity state(COF <0.01) through efficient lubrication technology.

关键词： friction corrosion energy.

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你我风采秀

英语角 2024年第14期 44-47页

最近,秋天姐姐收到了很多小朋友的来稿,这些作文都写得非常棒,一起来看看吧。Riding on a Boat Last weekend,my family and I went to the park.We had so much fun!We rode a boat to a lake.I held the oar(浆)and paddled(划船)with... 详细信息

关键词： energy. 划船 Last

Tandem electrocatalytic nitrate reduction reaction

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Chinese Journal of Structural Chemistry 2023年第8期42卷 8-10页

作者： Chuanfei Cang Haoquan Zheng Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi'an710119China

Haber-Bosch process is the main industrial procedure to produce ammonia(NH_(3)),but it requires harsh conditions,such as high temperature and high pressure and relies on non-renewable fossil energy.In comparison,electrochemical nitrogen(N_(2))or nitrate(NO_(3)^(-))reduction reaction to NH_(3) is a green and energy.efficient way,which has recently attached much attention.However,the reaction has multi-step electron/proton transfers and multiple intermediates during reaction,such as NO_(2)^(-),N_(2)H_(4),NH_(2)OH,N_(2),etc.,which gives rise to slow reaction kinetics,low activity and poor selectivity[1].It is important to design new electrocatalysts with high selectivity and high Faraday efficiency.

关键词： energy. nitrate selectivity

Solubilities of benzene, toluene and diphenyl in the t-butyl alcohol+water mixtures and hydrophobic interaction

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Science China Chemistry 1999年第3期42卷 225-235页

作者：邹立壮杨冠英韩布兴刘瑞麟阎海科 Institute of Chemistry Chinese Academy of Sciences Beijing China

The solubilitices of benzene, toluene and diphenyl in mixed solvents of t-butyl alcohol (TBA) and water at 283.15, 288.15, 293.15 and 298.15 K have been determined by spectrophotometry. The mole fraction of TBA [x (TBA)] in the mixed solvent are 0.000, 0.010, 0.020, 0.030, 0.040, 0.045, 0.050, 0.060, 0.080 and 0.100, respectively. The standard Gibbs energies of solution of benzene, toluene and diphenyl in the mixed solvent have also been calculated based on the solubility data. The hydrophobic interactions (HI) for the pairs of benzene-benzene, methane-benzene and methane-methane in the mixed solvent were calculated and discussed.

关键词： hydrophobic interaction solubility benzene toluene diphenyl t-butyl alcohol Gibbs energy.

Adsorption of Perylene on Si(111)(7×7)

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Chinese Physics Letters 2020年第2期37卷 47-50页

作者：管丹丹王欣伟毛宏颖鲍世宁贾金锋 Key Laboratory of Artificial Structures and Quantum Control(Ministry of Education) Shenyang National Laboratory for Materials ScienceSchool of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240 Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240 School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027 Department of Physics Hangzhou Normal UniversityHangzhou 310036 Department of Physics Zhejiang UniversityHangzhou 310027

We investigate the adsorption of organic molecular semiconductor perylene on(7×7)reconstructed Si(111)surface by ultraviolet photoemission spectroscopy.It is observed that seven features that derive from the organic material are located at 0.71,2.24,4.0,5.9,7.46,8.65 and 9.95 eV in binding energy.The theoretical calculation results reveal the most stable adsorption geometry of organic molecule perylene on Si(111)(7×7)substrates is at the beginning of deposition.

关键词： spectroscopy. deposition. energy.

Giant Monopole Resonance with Boltzmann-Nordheim-Vlasov Model

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Chinese Physics Letters 1996年第10期13卷 724-726页

作者： WEN Wan-xin ZHONG Ji-quan JIN Gen-ming Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000 CCAST(World Laboratory) P.O.Box 8730Beijing 100080

The Boltzmann-Nordheim-Vlasov (BNV) model was employed to investigate the giant monopole resonance (GMR) built on very excited residula nuclei formed in heavy-ion collisions. Roughly speaking the GMR energy.of BNV model is very similar to the value given by the empirical formual EGMR = 31.2A^(-l/3) + 20.6A^(-l/6) and hardly changes with impact parameter and bombarding energy.

关键词： energy. excited Boltzmann

Superdeformed Bands in ^(167)Lu and ^(171)Ta

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Chinese Physics Letters 1997年第1期14卷 17-19页

作者：吴晓光杨春祥郑华刘祥安沈彩万陈永寿马英君陆景彬温书贤凡李广生李生岗袁观俊翁培焜刘运祚 China Institute of Atomic energy Beijing 102413 Department of Physics Jilin UniversityChangchun 130023

High spin states of the odd-proton nucleus ^(167)Lu have been studied via ^(152)Sm(^(19)F,4n)^(167)Lu reaction at 87MeV beam energy.A weakly populated new rotationa1 band has been observed and assigned as i13/2 proton 1/2^(+)[660] band.This new band and the 1/2^(+)[660] band in ^(171)Ta from the early work are classified as superdeformed bands with triaxiality.

关键词： energy. weakly

Effect of Short-Range and Tensor Force Correlations on High-Density Behavior of Symmetry energy

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Chinese Physics Letters 2012年第12期29卷 57-60页

作者：许昌任中洲 Department of Physics Nanjing UniversityNanjing 210093 Center of Theoretical Nuclear Physics National Laboratory of Heavy-Ion AcceleratorLanzhou 730000

The effect of short-range and tensor correlations on nuclear symmetry energy.is investigated by using realistic nuclear momentum distribution n(k).For finite nuclei,the n(k)is discussed in detail within an analytical model that allows inclusion of both short-range and tensor correlation effects in a physically very transparent way.The equation of state of symmetric nuclear matter is calculated by using realistic n(k)parameterization.The tensor-force induced short-range correlations are shown to have a significant impact on the behavior of symmetry energy.

关键词： energy. tensor symmetry

Hadron Multiplicity in Pb+Pb Collisions at√s=2.76 TeV from Color Glass Condensate

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Chinese Physics Letters 2013年第6期30卷 71-75页

作者：向文昌张俊杰周代翠陈世国刘万松 College of Physics and Electronics Science Guizhou Normal UniversityGuiyang 550001 Institute of Particle Physics Huazhong Normal UniversityWuhan 430079

The pseudo-rapidity distribution of charged hadron multiplicity in Pb+Pb collisions at√s=2.76 TeV is studied by using Color Glass Condensate dynamics in the fixed coupling case.We fit the HERA experimental data with heavy parton mass effect to obtain saturation exponentλ=0.22.It is found that the charged hadron multiplicity can only describe after including heavy parton mass effect due to a large amount of heavy partons produced at large hadron collider(LHC)energy.The pomeron loop effect contribution to hadron production is also investigated.It shows that charged hadron multiplicity is underestimated by including the pomeron loop effect,which indicates that the pomeron loop effect may not exist at LHC energy.

关键词： energy. multiplicity hadron