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| 1 | Optimal controlled teleportation via several kinds of three-qubit states显示文摘The probability of successful controlled teleportation of an unknown qubit using a general three-particle state is investigated. The analytic expressions of maximal probabilities via several kinds of tripartite states are given, including a tripartite Greenberger-Horne-Zeilinger state and a tripartite W-state. | GAO Ting1,2, YAN FengLi2,3 & LI YouCheng3 1 College of Mathematics and Information Science, Hebei Normal University, Shijiazhuang 050016, China 2 Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, D-85748 Garching, Germany 3 College of Physics and Information Engineering, Hebei Normal University, Shijiazhuang 050016, China | 2008 | Science China(Physics,Mechanics & Astronomy)2008，51，10： | 9 |
| 2 | Effect of Partial Replacement of Nitrate by Amino Acid and Urea on Nitrate Content of Non-heading Chinese Cabbage and Lettuce in Hydroponic Condition显示文摘In this paper, the authors studied the effect of different mixtures of glyeine (Gly), isoleucine (Iso), proline (Pro), and urea solutions used as a partial (20%) replacment of nitrate in the nitrate content and quality of non-heading Chinese cabbage and lettuce in hydroponice. Five treatments were done 12 d before harvest. Compared to the control group, Gly had the best effect in reducing the nitrate content of both vegetable leaves and petioles; the mixture of Giy, Iso and Pro ranked second and urea the least. Treatments with amino acid could also increase soluble sugar and protein contents and enhance total-N in leaves significantly.In contrast, amino acid enhanced NRA in non-heading Chinese cabbage, while they decreased it slightly in lettuce. The results showed that amino acids and urea could reduce the nitrate content of both vegetables, but they had almost the same effect on non-heading Chinese cabbage. Moreover, amino acids were more effective than urea in lettuce. As a result, it was concluded that partial replacement of nitrate with amino acids not only reduced the nitrate content but also improved the quality of vegetables. | CHEN Gui-lin, GAO Xiu-rui and ZHANG Xian-bin( College of Horticulture , Agricultural University of Hebei, Baoding 071001 , P. R . China ) | 2002 | Agricultural Sciences in China2002，1，4： | 5 |
| 3 | The Maturation and Senescence in Relation to Ca^2+,CaMContent and Ca^2+-ATPase Activity and Active OxygenMetabolism in Strawberry Fruits显示文摘The changes in content of Ca2 + and CaM, Ca2 + -ATPase activity and active oxygen metabolism during strawberry (Fragaria ananassa Duch. cv. Chunxing) fruits maturation and senescence were investigated in this study. The results showed that the soluble Ca2 + content and SOD activity in fruits tended to decline and O2.-production rate to increase, the Ca2+ -ATPase activity peaked at first and then declined during fruits maturation and senescence. There were the highest CaM content at white stage in preharvest fruits and at marked senescence stage in postharvest ones. The above biochemical changes in fruits stored at low temperature (4℃) were slower than those stored at normal temperature(25℃ ). Thus, it indicated that the stimulation of calcium messenger system and accumulation of active oxygen free radical were closely related to fruits maturation and senescence. | GUAN Jun-feng, GAO Min, FAN Xiu-cai, GU Cai-qin, LI Guang-min and ZHANG Ji-shu(Institute of Agro-Physics , Plant Physiology and Biochemistry , Hebei Academy of Agricultural and Forestry Sciences ,Shijiazhuang 050051 , P. R . China College of Life Sciences , Northwestern Science and Technology Universityof Agriculture and Forestry, Yangling 712100 , P.R.China) | 2002 | Agricultural Sciences in China2002，1，10： | 3 |
| 4 | Thidiazuron promotes in vitro plant regeneration of Arachis correntina (Leguminosae) via organogenesis显示文摘 | Erika M HebeY R Ana M G | 2004 | Journal of Plant Growth Regulation2004，23，2： | 1 |
| 5 | Exercise induced skeletal muscle damage and adaptation following repeated bouts of eccentric muscle contractions显示文摘 | BROWN S J HEBEI R B Day S H | 1997 | Sports Sci1997，15，2： | 1 |
| 6 | Microbial production of hydrogen:An overview显示文摘 | NANDI R JONE H HEBEY Y | 1998 | Critical Reviews in Microbiology1998，24，1： | 1 |
| 7 | Kinetics of titanium chloride oxidation显示文摘 | PRATSINIS S E BAI Hebei BISWAS P R | 1990 | J Am Ceram Soc1990，73，7： | 1 |
| 8 | Research and Discussion on Physical and Chemical Properties of Cultivating Substrate with Facilities显示文摘This article, by comparing the basic concepts of substrate and soil, their composition of substance and methods of measuring the indexes of physical and chemical properties, analyzes and researches ways of choosing substrate for cultivation with facilities. It indicates that the normal physical and chemical indexes of evaluating a substrate are bulk density, total porosity, non-capillary porosity, ratio of big porosity to small porosity, the pH and the electrical conductivity (EC) value of the substrate. By measuring the physical and chemical properties of the substrate in different prescription and the cultivation experiments, the best substrate can be sieved. | MA Ying1 YIN Shulian1 ZHANG Yongxin2 1. Department of Garden in Hebei Professional College of Political Science and Law, Shijiazhuang 050061, P. R . China 2. Flower management centre in Hebei Province Forestry Bureau, Shijiazhuang 050061, P. R. China | 2008 | Chinese Forestry Science and Technology2008，7，2： | 1 |
| 9 | Zeeman graphite furnace atomic absorption spectrophotometric determination of eight life elements in human blood samples显示文摘A direct and simple method for the clinic muti-element determination of human blood sample by Zeeman graphite furnace atomic absorption spectropho-tometry is reported. No pretreatment of the sample is necessary other than simple dilution of the sample with aqueous solution of Triton X-100. The detection limits of the elements investigated fall in the range of 0.1- 4.4 μg/L with a relative standard deviation ranging from 1.6 for zinc to 3.73% for lead. Micro liters of samples are sufficient for the determination of each element. | Zhao Jin, Jiang Shougui (S. G. Jiang), Chen Shikun and Jiang DesenEnvironmental Research Lab,Heibei University,Baoding 071002,P,R,ChinaHospital of Baoding Prefecture,Hebei,P.R.China | 1989 | Journal of Environmental Sciences1989，1，2： | 0 |
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