|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Principle of equipartition of entransy dissipation for heat exchanger design显示文摘In the present work,a principle of equipartition of entransy dissipation(EoED) for heat exchanger design is established,which says that for a heat exchanger design with given heat duty and heat transfer area,the total entransy dissipation rate reaches the minimum when the local entransy dissipation rate is uniformly distributed along the heat exchanger.When the heat transfer coefficient is unfixed,the total entransy dissipation obtained by the EoED principle is less than that obtained by the principle of equipartition of temperature difference(EoTD).Furthermore,the exchanger effectiveness obtained by the EoED principle is larger than that obtained by the EoTD principle.When the heat transfer coefficient is fixed,the EoED principle is equivalent to the EoTD principle.We show that the equipartition of entropy production(EoEP) and EoED principles give rise to difference in entropy generation and entransy dissipation for a heat exchanger optimization design.The discrepancies are caused by distinct features of entropy production minimization and entransy dissipation minimization principles,the former is to optimize the design of heat exchanger by making the lost available work minimum,while the latter is not involved with heat-work conversion.It is found that the entropy generation number is not suitable for evaluating heat exchanger performance,since it directly depends on the inlet and outlet temperatures of working fluids.On the contrary,the entransy dissipation number is not directly related to the inlet and outlet temperatures of working fluids.Therefore,the entransy dissipation number is more suitable for serving as a criterion to evaluate heat exchanger performance. | GUO JiangFeng,XU MingTian & CHENG Lin Institute of Thermal Science and Technology,Shandong University,Jinan 250061,China | 2010 | Science China(Technological Sciences)2010，53，5： | 46 |
| 2 | Influence of whole peptidoglycan of bifidobacterium on cytotoxic effectors produced by mouse peritoneal macrophages显示文摘INTRODUCTIONBifidobacteria are physiologically beneficial bacteria which are perdominant in human intestine ,and possess the most important functions .They play an important role in maintaining microbial balance of the intestine .Furthermore , their presence is thought to be an important indication of health of the body [1-4].Whole peptidoglycan ( WPG) is the major component in the cell wall of bifidobacterium ,which is also a biological responsemodifier with nontoxic side dffcets. | Li Sheng Wang~1 Hui Ming Zhu~1 Dian Yuan Zhou~2 Yu Lin Wang~1 Wan Dai Zhang~2 ~1Departrnent of Gastroenterology,Shenzhen Municipal People’s Hospital,Jinan University of Medical Sciences,Shenzhen 518020,Guangdong Province,China ~2Chinese PLA Institute of Digestion,the First Military Medical University,Guangzhou 510515,Guangdong Province,ChinaLi Sheng Wang graduated and obtained Ph.D,from the First Military Medical University in 1998,now working at Department of Gastroenterology,Shenzhen Municipal People’s Hospital.Jinan University of Medical Sciences.having 35 papers published. | 2001 | World Journal of Gastroenterology2001，7，3： | 15 |
| 3 | COMPLEX HEAT TRANSFER ENHANCEMENT BY FLUID INDUCED VIBRATION显示文摘A new method of heat transfer enhancement by fluid induced vibration was put forward, and its theoretical analysis and experimental study were performed. Though people always try to prophylaxis fluid induced vibration for regarding it as an accident, the utilization space of fluid induced vibration is still very large. The in surface and out surface vibrations which come from the fluid induce elastic tube bundles, can effectively increase the convective heat transfer coefficient, and also decrease the fouling resistance, then increase the heat transfer coefficient remarkably. | Cheng Lin, Qiu YanSchool of Energy Source and Power Engineering, Shandong University, Jinan 250061, China | 2003 | Journal of Hydrodynamics2003，15，1： | 7 |
| 4 | False belief reasoning in the brain: An ERP study显示文摘Understanding others mind and interpersonal interaction are the cognitive basis of successful social interactions. People's mental states and behaviors rely on their holding beliefs for self and others. To investigate the neural substrates of false belief reasoning, the 32 channels event-related potentials (ERP) of 14 normal adults were measured while they understood false-belief and true belief used de-ceptive appearance task. After onset of the false-belief or true-belief questions, N100, P200 and late negative component (LNC) were elicited at centro-frontal sites. Compared with true belief, false belief reasoning elicited significant declined LNC in the time window from 400 to 800 ms. The source analysis of difference wave (False minus True) showed a dipole located in the middle cingulated cortex. These findings show that false belief reasoning probably included inhibitive process. | WANG YiWen1,2,3, LIU Yan2, GAO YanXia2, CHEN Jing2, ZHANG Wenxin2 & LIN ChongDe3 1 Research Center of Learning Science, Southeast University, Nanjing 210096, China 2 School of Psychology, Shandong Normal University, Jinan 250014, China 3 The State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China | 2008 | Science China(Life Sciences)2008，51，1： | 7 |
| 5 | Analysis of Phthalate Esters in Air, Soil and Plants in Plastic Film Greenhouse显示文摘The phthalate esters such as DMP, DEP, DBP and DEHP in air, soil and plant samples in plastic film greenhouse were clean up with fine silica gel column and determined with HPLC. It was found that the concentrations of PEs in air and soil samples in plastic film greenhouse are much higher than those of contrast samples. But concentrations of PEs in plants in plastic film greenhouse are not remarkably affected by the pollution of air and soil. | Xi Kui WANG*, Wei Lin GUO, Ping Rui MENG, Jia An GAN College of Chemistry and Environmental Science, University of Jinan, Jinan 250022 | 2002 | Chinese Chemical Letters2002，13，6： | 6 |
| 6 | Characterization of SoxB2 and SoxC genes in Amphi-oxus (Branchiostoma belcheri):Implications for their evolutionary conservation显示文摘Most Sox genes directly affect cell fate determination and differentiation. In this study,we isolated two Sox genes:SoxB2 and SoxC from amphioxus (Branchiostoma belcheri),the closest living invertebrate relative of the vertebrates. Alignments of SoxB2 and SoxC protein sequences and their vertebrate homologs show high conservation of their HMG domains. Phylogenic analysis shows that amphioxus SoxB2 and SoxC fall out of the vertebrate branches,suggesting that vertebrate homologs might arise from gene duplications during evolution. The two genes possess similar spatial and temporal expression patterns during embryogenesis and in adults. They are both maternally inherited. During neurulation,they are expressed in the neural ectoderm and archenterons. In adults,they are expressed not only in the nerve cord,but also in the gut,midgut diverticulum,gill and oocytes. These results suggest that amphioxus SoxB2 and SoxC might co-function and have conserved functions in the nervous system and gonads as their vertebrate homologs. | LIN YuShuang,CHEN DongYan,FAN QiuSheng & ZHANG HongWei Institute of Developmental Biology,Life Science College,Key Lab of Experimental Teratology of Ministry of Education,Shandong University,Jinan 250100,China | 2009 | Science China(Life Sciences)2009，52，9： | 4 |
| 7 | Recurrence spectra of He atoms in strong external fields显示文摘By employing a model potential including the electron exchange energy, we extend the semiclassical closed orbit theory to study the multielectron atoms. Using special region-splitting consistent and iterative method, we figure out the closed orbits in the corresponding classical system and calculate the recurrence spectra of triplet helium atoms in parallel electric and magnetic fields at scaled energy e = -0.03, n≈40, m = 0. The core-scattering effects have been taken into account, which lead to more peaks in the spectra. It has also been confirmed by means of the direct comparison between the spectral portrait in such a plot and those of hydrogen case. In order to compare the theoretic results with experiment, we investigate the closed orbits and recurrence spectra of helium atoms for the similar exchange potential but applied only by single electric field at scaled energy e = -2.7 case. The spectra are in good agreement with the experimental observation. We conclude that our model is correct and it is necessary to consider the exchange effect for determining the photoabsorption spectra of multielectron atoms in strong external fields. | LIN Shenglu1, LI Hongyun1, WANG Dehua2, ZHAO Wenli1 & GAO Feng1 1. Department of Physics, Shandong Normal University, Jinan 250014, China 2. Department of Mathematics and Physics, Shandong Institute of Architecture and Engineering, Jinan 250014, China | 2004 | Science China(Physics,Mechanics & Astronomy)2004，47，4： | 2 |
| 8 | The dynamical properties of Rydberg hydrogen atom near a metal surface显示文摘The dynamical properties of Rydberg hydrogen atom near a metal surface are presented by using the methods of phase space analysis and closed orbit theory. Transforming the coordinates of the Hamiltonian, we find that the phase space of the system is divided into vibrational and rotational region. Both the Poincaré surface of section and the closed orbit theory verify the same conclusion clearly. In this paper we choose the atomic principal quantum number as n = 20. The dynamical character of the exited hydrogen atom depends sensitively on the atom-surface distance d. When d is sufficiently large, the atom-surface potential can be expressed by the traditional van der Waals force and the system is integrable. When d becomes smaller, there exists a critical value dc. For d > dc, the system is near-integrable and the motion is regular. While chaotic motion appears for d < dc, and the system tends to be non-integrable. The trajectories become unstable and the electron might be captured onto the metal surface. | GE Meihua1, ZHANG Yanhui1, WANG Dehua2, DU Mengli3 & LIN Shenglu1 1. College of Physics and Electronics, Shandong Normal University, Jinan 250014, China 2. Department of Mathematics and Physics, Shandong Institute of Architecture and Engineering, Jinan 250014, China 3. Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China | 2005 | Science China(Physics,Mechanics & Astronomy)2005，48，6： | 2 |
| 9 | SMALLEST g-SUPERSOLUTION FOR BSDE WITH CONTINUOUS DRIFT COEFFICIENTS显示文摘The authors prove the existence and uniqueness of smallest g-supersolution with an equality constrains on (y, z) for one demensional stochastic differential equations whose drift coefficients are continuous and linearly growing, and whose terminal conditions are square integrable. | LIN QINGQUAN (School of Mathematics and System Science, Shandong University, Jinan 250100, China.) PENG SHIGE(School of Mathematics and System Science, Shandong University, Jinan 250100, China.) E-mail: Linqingquan@math. sdu. cn Peng@sdu. edu. cn | 2000 | Chinese Annals of Mathematics,Series B2000，21，3： | 2 |
| 10 | Calculation of the Quasiternary Systems:Si_3N_4-Y_2O_3-SiO_2,Y_2O_3-SiO_2-BeO and Y_2O_3-Al_2O_3-BeO显示文摘Based on the thermodynamic model of Kaufman for the calculation of quasibinary and quasiternary system, numerical method for the calculation of stable equilibrium is developed and thermodynamic data of undefined phases are discussed in this work for several ceramic systems.The calculated isothermal sections in Si3N4-Y2O3-SiO2 system meet well with other previous calculated phase diagrams and experimental results. The diagrams in Y2O3-SiO2-BeO and Y2O3-Al2O3-BeO systems are calculated for the approach of prediction. | Lin LI(Dept. Materials Science and Engineering, Shanghai University, Shanghai, 200072, China)Qing AO (Dept. of Materials Engineering, Shandong Polytechnic University, Jinan, 250014, China)O. Van Der Biest P Wollants and L.Delaey (Dept. MTM, Katholieke Un | 1995 | Journal of Materials Science & Technology1995，11，4： | 1 |
| 11 | Effects of medium chain triglycerides on hepatic fatty acid oxidation in clofibrate-fed newborn piglets显示文摘To investigate whether increasing tricarboxylic acid(TCA)cycle activity and ketogenic capacity would augment fatty acid(FA)oxidation induced by the peroxisome proliferator-activated receptor-alpha(PPARα)agonist clofibrate,suckling newborn piglets(n=54)were assigned to 8 groups following a 2(±clofibrate)×4(glycerol succinate[SUC],triglycerides of 2-methylpentanoic acid[T2M],valeric acid[TC5]and hexanoic acid[TC6])factorial design.Each group was fed an isocaloric milk formula containing either 0%or 0.35%clofibrate(wt/wt,dry matter basis)with 5%SUC,T2M,TC5 or TC6 for 5 d.Another 6 pigs served as newborn controls.Fatty acid oxidation was examined in fresh homogenates of liver collected on d 6 using[1-^(14)C]palmitic acid(1 mM)as a substrate(0.265μCi/μmol).Measurements were performed in the absence or presence of L-carnitine(1 mM)or inhibitors of 3-hydroxy-3-methylglutaryl-CoA synthase(L659699,1.6μM)or acetoacetate-CoA deacylase(iodoacetamide,50μM).Without clofibrate stimulation,^(14)C accumulation in CO_(2) was higher from piglets fed diets containing T2M and TC5 than SUC,but similar to those fed TC6.Under clofibrate stimulation,accumulation also was higher in homogenates from piglets fed TC5 than all other dietary treatments.Interactions between clofibrate and carnitine or the inhibitors were observed(P=0.0004)for acid soluble products(ASP).In vitro addition of carnitine increased^(14)C-ASP(P<0.0001)above all other treatments,regardless of clofibrate treatment.The percentage of^(14)C in CO_(2) was higher(P=0.0023)in TC5 than in the control group.From these results we suggest that dietary supplementation of anaplerotic and ketogenic FA could impact FA oxidation and modify the metabolism of acetyl-CoA(product ofβ-oxidation)via alteration of TCA cycle activity,but the modification has no significant impact on the hepatic FA oxidative capacity induced by PPARα.In addition,the availability of carnitine is a critical element to maintain FA oxidation during the neonatal period. | Jinan Zhao Brandon Pike Jin Huang Zhihua Feng Jack Odle Xi Lin | 2023 | Animal Nutrition2023，，1： | 1 |
| 12 | The Tychonoff uniqueness theorem for the G-heat equation显示文摘In this paper we shall investigate a uniqueness result for solutions of the G-heat equation. We obtain the Tychonoff uniqueness theorem for the G-heat equation. | LIN Qian1,2 1School of Mathematics, Shandong University, Jinan 250100, China 2 Laboratoire de Mathématiques, CNRS UMR 6205, Université de Bretagne Occidentale, 6, avenue Victor Le Gorgeu, CS 93837, 29238 Brest cedex 3, France | 2011 | Science China Mathematics2011，54，3： | 1 |
| 13 | Anisotropic resizing and deformation preserving geometric textures显示文摘Model resizing is a useful technique for model reuse. Non-homogeneous model resizing introduced by Kraevoy et al. is able to preserve important geometric features during anisotropic scaling. However, many practical objects contain various geometric textures. Different from similar objects without geometric textures, such objects seem to be extremely difficult for resizing even if the underlying surfaces are relatively simple. In this paper, we present an automatic model resizing method based on geometric texture transfer. Geometric textures are separated from the underlying surfaces and reconstructed on the non-homogenously scaled surfaces using geometric texture synthesis. By utilizing the natural correspondence between the surfaces before and after resizing, surfaces with multiple geometric textures can be resized and geometric texture recovered automatically. Experimental results show that our method effectively and automatically preserves geometric textures during the model resizing process. Our method can also easily be used in general deformation process. | CHEN Lin & MENG XiangXu School of Computer Science and Technology, Shandong University, Jinan 250101, China | 2010 | Science China(Information Sciences)2010，53，12： | 1 |
| 14 | Ground-Based Hyperspectral Stereoscopic Remote Sensing Network: A Promising Strategy to Learn Coordinated Control of O_(3) and PM_(2.5) over China显示文摘With the coming of the“14th Five-Year Plan,”the coordinated control of particulate matter with an aerodynamic diameter no greater than 2.5 lm(PM_(2.5))and O_(3) has become a major issue of air pollution prevention and control in China.The stereoscopic monitoring of regional PM_(2.5) and O_(3) and their precursors is crucial to achieve coordinated control.However,current monitoring networks are currently inadequate for monitoring the vertical profiles of both PM_(2.5) and O_(3) simultaneously and support air quality control.The University of Science and Technology of China(USTC)has established a nationwide ground-based hyperspectral stereoscopic remote sensing network based on multi-axis differential optical absorption spectroscopy(MAX-DOAS)since 2015.This monitoring network provides a significant opportunity for the regional coordinated control of PM_(2.5) and O_(3) in China.One-year vertical profiles of aerosol,NO_(2) and HCHO monitored from four MAX-DOAS stations installed in four megacities(Beijing,Shanghai,Shenzhen,and Chongqing)were used to characterize their vertical distribution differences in four key regions,Jing–Jin–Ji(JJJ),Yangtze River Delta(YRD),Pearl River Delta(PRD),and Sichuan Basin(SB),respectively.The normalized and yearly averaged aerosol vertical profiles below 400 m in JJJ and PRD exhibit a box shape and a Gaussian shape,respectively,and both show exponential shapes in YRD and SB.The NO_(2) vertical profiles in four regions all exhibit exponential shapes because of vehicle emissions.The shape of the HCHO vertical profile in JJJ and PRD was Gaussian,whereas an exponential shape was shown in YRD and SB.Moreover,a regional transport event occurred at an altitude of 600–1000 m was monitored in the southwest–northeast pathway of the North China Plain(NCP)by five MAX-DOAS stations(Shijiazhuang(SJZ),Wangdu(WD),Nancheng(NC),Chinese Academy of Meteorological Sciences(CAMS),and University of Chinese Academy of Sciences(UCAS))belonging to the above network.The aerosol optical depths(AOD)in these five stations decreased in the order of SJZ>WD>NC>CAMS>UCAS.The short-distance regional transport of NO2 in the 700–900 m layer was monitored between WD and NC.As an important precursor of secondary aerosol,the peak of NO_(2) air mass in WD and NC all occurred 1 h earlier than that of aerosol.This was also observed for the short-distance regional transport of HCHO in the 700–900 m layer between NC and CAMS,which potentially affected the O_(3) concentration in Beijing.Finally,CAMS was selected as a typical site to determine the O_(3)–NO_(x)–volatile organic compounds(VOCs)sensitivities in vertical space.We found the production of O_(3) changed from predominantly VOCs-limited conditions to mainly mixed VOCs–NO_(x)-limited condition from the 0–100 m layer to the 200–300 m layer.In addition,the downward transport of O_(3) could contribute to the increase of ground surface O_(3) concentration.This ground-based hyperspectral stereoscopic remote sensing network provide a promising strategy to support management of PM_(2.5) and O_(3) and their precursors and conduct attribution of sources. | Cheng Liu Chengzhi Xing Qihou Hu Qihua Li Haoran Liu Qianqian Hong Wei Tan Xiangguang Ji Hua Lin Chuan Lu Jinan Lin Hanyang Liu Shaocong Wei Jian Chen Kunpeng Yang Shuntian Wang Ting Liu Yujia Chen | 2022 | Engineering2022，，12： | 0 |
| 15 | Elimination Reaction of α,ω-Diols by Magnesium显示文摘1,3-Propanediol, 1,4-butanediol or 1,5-pentanediol reacts with magnesium to form corresponding magnesium alkoxides, which elindnate water with the formation of cyclic ethers and, respectively, allyl alcohol, 3-buten-1-ol and 4-penten-1-ol. | Ji Mao LIN Hui ZHANG Ai You HAO Qin Zheng YANG(Department of Chemistry, Shandong University, Jinan, 250100) | 1998 | Chinese Chemical Letters1998，9，8： | 0 |
| 16 | Photoinduced Electron Transfer Reaction between Poly-guanylic Acid(5') with Anthraquinone-2-sulfonate显示文摘The electron transfer reaction between triplet anthraquinone-2-sulfonate with poly-guanylic acid (5) (poly[G]) in acetonitrile-H2O has been investigated by 248 nm laser flash photolysis. The transient absorption spectra of radical cation of poly[G] and radical anion of anthraqunione-2-sulfonate (AQS) arising from electron transfer reaction has been observed simultaneously for the first time. The formation processes of radical cation of poly[G] and radical anion of anthraquinone-2-sulfonate as well as the decay processes of triplet anthraquinone-2-sulfonate have also been observed, the apparent rate constants for the formation and decay of transient species have been determined. The free energy changes in the process of the electron transfer was also calculated. | Jian Hua MA Hua SHAO Si De YAO Nian Yun LIN(Department of Chemistry Engineering and Technology, College of Light Industry of Shandong, Jinan 250100)(Laboratory of Radiation Chemistry Shanghai Institute of Nuclear Research, Chinese Academy of Science | 2000 | Chinese Chemical Letters2000，11，6： | 0 |
| 17 | SMALLEST g-SUPERSOLUTION WITH CONSTRAINT显示文摘In this paper the existence and uniqueness of the smallest g-supersolution for BSDE is discussed in the case without Lipschitz condition imposing on both constraint function and drift coefficient in the different method from the one with Lipschitz condition.Then by considering (ξ,g) as a parameter of BSDE,and ( ξ α,g α) as a class of parameters for BSDE,where α belongs to a set A,for every α ∈A there exists a pair of solution { Y α,Z α } for the BSDE,the properties of sup α ∈A{ Y α } which is also a solution for some BSDE is studied.This result may be used to discuss optimal problems with recursive utility. | Lin QingquanSchool of Mathematics and System Science,Shandong Univ.,Jinan 2 50 1 0 0 | 2000 | Applied Mathematics(A Journal of Chinese Universities)2000，15，3： | 0 |
| 18 | Selective Modification of β-Cyclodextrin on the Secondary Side 4:Preparation of Arylated β-Cyclodextrins with a Flexible Chain显示文摘Mono 3 -deoxy-(N’ -benzoyl-ethylenediamino)-β -CD, mono 3 -deoxy-(N’ -benzimidoyl -ethylamino)-β-CD, and mono 3 -deoxy-(N’ - salicylidene-ethylenediamino)- β -CD, each of which has a flexible chain that bonds the aryl moiety on the secondary side of β-CD, were prepared inthis research. The reaction processes might involve the formation of mono(2, 3 -manno-epoxide )- β -CD as an intermediate in our reaction conditions. | Ai You HAO Lin Hui TONG Min ZHU (College of Chemistry, Shandong University, Jinan 250100)(Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000) | 1998 | Chinese Chemical Letters1998，9，1： | 0 |
| 19 | Selective Determination of Epinephrine by Using an Improved Modification of the Trihydroxyindole Method显示文摘A simple and selective method for the determination of epinephrine is putforward, which is an improved modification of the trihydroxyindole method. Experimentindicated that in borax buffer (pH=8.7) and with mercaptoethanol as the reducing reagent,dopa and dopamine did not form fluorescence products, so it is possible to determineepinephrine selectively. | Jing He YANG Chang Lun TONG Gut Ling ZHANG Xia WU Cun Guo Lin Jing Tian HU(Department of Chemistry, Shandong University, Jinan 250100) | 1998 | Chinese Chemical Letters1998，9，3： | 0 |
| 20 | Investigation of power flow in a continuous floating raft isolation system显示文摘A general dynamic model of a floating raft isolation system with multiple machines and supports is established. Considering the coupling of the foundation in high frequency and basing on the mobility analysis of substructures, the expression of the power flow transmission spectrum of the finite continuous isolation system of asymmetry is derived. At the same time the mathematical calculation and analysis by figure are made to find the rules related to the isolation effect in the case of different parameters of the system. | SONG Kongjie, MAO Yinghong (Shandong University of Technology Jinan 250061) LIN Li (Syster Engineering Research Institute Beijing 100036) | 2001 | Chinese Journal of Acoustics2001，20，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员