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Changes of dipole moment in intramolecular proton transfer process of perylenequinone

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Chinese Science Bulletin 1998年第16期43卷 1380-1384页

作者： ZHANG Hongyu Department of biology, Provincial Key laboratory of Animal Resistance biology, shandong Teachers university, Jinan 250014, china Department of biology Provincial Key Laboratory of Animal Resistance Biology Shandong Teachers University Jinan China

Semiempirical quantum chemistry method AM1 was employed to calculate dipole moment of perylenequinone (PQ) in intramolecular proton transfer (IPT) process. It was found that there existed a maximum of dipole moment in all IPT process except PQ anion (PQ) which possessed a minimum. Moreover, almost all states of PQ except ground state had high changes in dipole moment. All of these laid foundations to clarify solvent effects in IPT of PQ.

关键词： perylenequinone intramolecular proton transfer dipole moment AM1 method.

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Calculation of the molecular exchanging energy of binary surfactants system on the surface monolayer of aqueous solution

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Science china Chemistry 2007年第4期50卷 468-475页

作者： WANG ZhengWu1 & YI XiZhang2 1 Department of Food Sciences & technology, School of Agriculture and biology, Shanghai Jiao Tong university, Shanghai 200240, china 2 Institute of Theoretical Chemistry, shandong university, Jinan 250100, china Department of Food Sciences & technology School of Agriculture and Biology Shanghai Jiao Tong University Shanghai China Institute of Theoretical Chemistry Shandong University Jinan China

By using the binary anionic/cationic surfactants system CH3(CH2)nOSO_3/CH3(CH2)nN+(CH3)3 as an ex-ample, the molecular exchanging energy (ε) of adsorption on the surface monolayer of aqueous solu-tion has been studied. ε can be obtained with two methods. One is from the relationship between ε and the molecule interaction parameter (β). This relationship is founded by considering that the adsorption of mixed surfactants on the surface monolayer of solution satisfies the dimensional crystal model condition under which β can be obtained by testing the surface tension of solution. The other is directly from the molecular structure of surfactants with the Lennard-Jones formula. The results for the studied system show that these two methods coincide well.

关键词： surfactant molecule exchanging energy dimensional crystal model

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Cloning and Sequence Analysis of Lycopeneβ-cyclase Gene Fragment from Brassica camperis ***

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Cloning and Sequence Analysis of Lycopeneβ-cyclase Gene Fra...

Estimation of Cucumber Evapotranspiration in Solar Greenhouse in Northeast china

2009整合植物生物学研讨会

作者： Hengjian Xu~* College of Life,shandong university of technology,zibo 255049,china.

Carotenoids comprise one of the largest classes of pigments in *** has an important physiological role in plant photosynthesis and photo *** important role is to give various colors to *** of the orange,yellow,or red colors found in the flowers,fruits and other organs of many higher-plant species are due to accumulation of

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Agricultural Sciences in china 2010年第4期9卷 512-518页

作者： ZHANG Zi-kun, LIU Shi-qi, LIU Su-hui and HUANG Zhi-jun State Key laboratory of Crop biology/Key laboratory of Horticultural Crop biology, College of Horticulture Science and Engineering, shandong Agricultural university, Tai’an 271018, P.R.china State Key laboratory of Crop biology/Key laboratory of Horticultural Crop biology College of Horticulture Science and Engineering Shandong Agricultural University Tai'an 271018 P.R. China

The solar greenhouse without heating system has been widely used for vegetable production in Northeast china since the 1980s. The experiment was conducted in the solar greenhouse to study the relationship between evapotranspiration （ET） of cucumber and climatic factors. Reference evapotranspiration （ET0） and pan evaporation （Ep） were applied to determine cucumber evapotranspiration by regression methods. Results showed that the ET of cucumber increased with the increasing of solar radiation, air temperature and vapor pressure. The solar radiation was the most important factor that influences ET among environmental parameters. The determination coefficient （R2） was 0.865 between ET and Ep, higher than that between ET and ET0 （application of a constant vegetation coefficient, R2 = 0.46）. The pan coefficient （kp, determined from the ratio of ET to Ep） and the crop coefficients （kc, determined from the ratio of ET to ET0） showed considerable variability and no obvious systematic pattern could be described throughout the study period. Ep was linearly related to ET and 20 cm pan can be well used to determine the water requirement of cucumber under subsurface drip irrigation in this type of solar greenhouse.

关键词： evapotranspiration reference evapotranspiration Penman-Monteith cucumber solar greenhouse

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Scavenging Effect of Perylenequinone Hydroxyls on Free Radicals: A Theoretical Study

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Chinese Chemical Letters 1998年第12期9卷 0-0+0-0页

作者： Hong Yu ZHANG (Department of biology, Provincial Key laboratory of Animal Resistancebiology, shandong Teachers’ university, Jinan 250014) Department of biology Prov. Key Lab. Anim. Resist. Biol. Shandong Teachers' University Jinan 250014 China

The sendempirical method AM1 was used to calculate AHOF values ofperylenequinone (PQ), and HOF was used as a theoretical parameter to predict the scavengingability of Po hydroxyls. Owing to strong intramolecular hydrogen bonds and the electronattracting property of the keto-function, hydroxyls of PQ were so weak in scavenging free radicalsthat the its effect was negligible in photodynandc therapy. However, when Po was substitilted withstrong electron-donating groups, its scavenging activity was enhanced markedly.

关键词： Perylenequinonoid derivatives antioxidant AM1 method △HOF value

Investigation on Vibrational Spectra and Structures of 4-Mercaptopyridine Monomer and Its Dihydrate

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Chemical Research in Chinese Universities 2006年第1期22卷 90-93页

作者： CHENG Jian-bo 1,2 , XUE Wei-qing 1 , ZHAO Bing 1** , ZHANG Gang 3 and GONG Bao-an 2 1. Key laboratory for Supramolecular Structure and Material of Ministry of Education, Jilin university, Changchun 130012, P. R. china 2. Science and Engineering College of Chemistry and biology, Yantai university, Yantai 264005, P. R. china 3. State Key laboratory of Theoretical and computational Chemistry, Jilin university, Changchun 130023, P. R. china Key laboratory for Supramolecular Structure and Material of Ministry of Education Jiln University Changchun 130012 P. R. China Science and Engineering College of Chemistry and biology Yantai University Yantai 264005 P. R. China State Key laboratory of Theoretical and computational Chemistry Jiln University Changchun 130023 P. R. China

The optimized molecular structures and vibrational frequencies of 4-mercaptopyridine(4MPY) monomer and its dihydrate were studied by means of the density functional theory(DFT), viz. B3LYP method with the 6-311++G(d,p) basis set. On the basis of the calculations, the assignments of the vibrational spectra of the monomer and the dihydrate were performed, and so were investigated the changes in the structure and the vibrational spectrum of the dihydrate as well as the intermolecular force resulting in the formation of the dihydrate. The calculated results show that each of the water molecule planes is vertical to the pyridine ring plane in the dihydrate that is formed via the H-bonds between 4MPY and water molecules. Furthermore, the structure and the vibrational spectrum of 4MPY can be consi- derably affected by the water molecules.

关键词： 4MPY Dihydrate Vibrational spectra DFT Molecular structure

Antitumor Effect of Antisense Ornithine Decarboxylase Adenovirus on Human Lung Cancer Cells

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Acta Biochimica et Biophysica Sinica 2006年第6期38卷 410-416页

作者： Hui TIAN~(1*),Lin LI~1,Xian-Xi LIU~2,and Yan ZHANG~2 ~1 Department of Thoracic Surgery,shandong university Qi Lu Hospital,Jinan 250012,china ~2 Experimental Center of Medical Molecular biology,School of Medicine,shandong university,Jinan 250012,china Department of Thoracic Surgery Shandong University Qi Lu HospitalJinan 250012 China Experimental Center of Medical Molecular biology School of Medicine Shandong UniversityJinan 250012 China

Ornithine decarboxylase (ODC),the first enzyme of polyamine biosynthesis,was found toincrease in cancer cells,especially lung cancer *** chemotherapeutic agents aimed at decreasingODC gene expression showed inhibitory effects on cancer cells,ha this study,we examined the effects ofadenoviral transduced antisense ODC on lung cancer *** adenovirus carrying antisense ODC(rAd-ODC/Ex3as) was used to infect lung cancer cell line *** 3-(4,5-methylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assay was used to analyze the effect on cell *** of ODC and concentrationof polyamines in cells were determined by Western blot analysis and high performance liquid *** deoxynucleotidyl transferase-mediated biotin-dUTP nick-end labeling was used to analyze *** expression of ODC in A-549 cells was reduced to 54%,and that of three polyamines wasalso decreased through the rAd-ODC/Ex3as ***,cell growth was substantially inhibitedand terminal deoxynucleotidyl transferase-mediated biotin-dUTP nick-end labeling showed that rAd-ODC/Ex3ascould lead to cell apoptosis,with apoptosis index of 46%.This study suggests that rAd-ODC/Ex3as has anantitumor effect on the human lung cancer cells.

关键词： polyamine putrescine biosynthesis antisense technology gene therapy A-549 lung cancer cell line

Overview of the Types of Battery Models

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Overview of the Types of Battery Models

Field Weakening Operation Control Strategies of Interior Permanent Magnet Synchronous Motor for Electric Vehicles

第三十届中国控制会议

作者： SUN Kai~1,SHU Qifang~2 1.School of Electrical and Electronic Engineering,shandong university of technology,zibo 255049,P.R.china 2.School of biology,shandong university of technology,zibo 255049,P.R.china

＜正＞A review of the literature about the types of battery models was *** of the research on battery models was *** types of battery models were described,and the characteristics of these battery models were ***,advantages and the problems need to be solved on battery models were ***,the paper calls for an efficient model of the battery which can accurately monitor the performance of the battery and other critical battery parameters like State of Charge,State of Health,Time to Run,etc.

关键词： Battery Models Electric Vehicles Adaptive Modeling State of Charge State of Health

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Field Weakening Operation Control Strategies of Interior Per...