科研成果

1997

Li SM, Anlauf KG, Wiebe HA, Bottenheim JW, Shepson PB, Biesenthal T. Emission ratios and photochemical production efficiencies of nitrogen oxides, ketones, and aldehydes in the Lower Fraser Valley during the summer Pacific 1993 oxidant study. ATMOSPHERIC ENVIRONMENT. 1997;31:2037-2048.Abstract

Observations made at a ground site east of Vancouver, Canada, were used in a principal component analysis (PCA) to derive (1) the emission ratios (ER) SO2, NOx, HNO2, HNO3, ketones, and aldehydes relative to CO and (2) the photochemical production efficiencies (PPE) of O-3, HNO2, HNO3, PAN, and several ketones and aldehydes relative to the formation of NOz. It is shown that derived ER(SO2) and ER(NOx) are consistent with the mobile emission sources in the Greater Vancouver Regional District (GVRD) emission inventory. Combining the ER data for other species with the GVRD CO emission inventory, the daily emission rates for these species have been estimated, indicating significant sources for these species. The derived PPE values for O-3, HNO2, HNO3, PAN, the ketones, and the aldehydes are as follows: PPE(O-3) is approximately 8-11 depending on the time of day; PPE(acetone) is between 1 and 2; PPE(MVK), PPE(MACR), and PPE(MEK) are approximately the same between 0.1 and 0.2; PPE(HCHO) is between 1 and 2, but PPE(propanal) and PPE(butanal) are lower than PPE(HCHO) by a factor of 2-10. It is shown that the daily photochemical production rates of O-3 and the carbonyl species are approximately linear functions of the NOx daily emission rates. When the photochemical production rates are compared with counterpart daily emission rates, it is shown that for the organic compounds, the contributions from photochemistry were more important than daytime emissions; for HNO2, there is more emission contribution than photochemistry, opposite to the case for HNO3. (C) 1997 Elsevier Science Ltd.

Yu C, Levi DM. End stopping and length tuning in psychophysical spatial filters. Journal of the Optical Society of America A: Optics and Image Science, and Vision [Internet]. 1997;(9):2346-2354. 访问链接

Li Z, Cheng H, Lederer JW, Froehlich J, Lakatta EG. Enhanced proliferation and migration and altered cytoskeletal proteins in early passage smooth muscle cells from young and old rat aortic explants. Experimental and Molecular Pathology [Internet]. 1997;(1):1-11. 访问链接

Hill MC, Deng H, Unutmaz D, Kewalramani VN, Bastiani L, Gorny MK, Zolla-Pazner S, Littman DR. Envelope glycoproteins from human immunodeficiency virus types 1 and 2 and simian immunodeficiency virus can use human CCR5 as a coreceptor for viral entry and make direct CD4-dependent interactions with this chemokine receptor. Journal of Virology [Internet]. 1997;(9):6296-6304. 访问链接

Wilkinson SR, Bharucha CF, Fischer MC, Madison KW, Morrow PR, Niu Q, Sundaram B, Raizen MG. Experimental evidence for non-exponential decay in quantum tunnelling. Nature. 1997;(6633):575-577.

Chen Y, Guo L, Wang EG. Experimental evidence for α- and β-phases of pure crystalline C3N4 in films deposited on nickel substrates. Philosophical Magazine Letters. 1997;(3):155-162.

Deng H, Unutmaz D, Kewalramani VN, Littman DR. Expression cloning of new receptors used by simian and human immunodeficiency viruses. Nature [Internet]. 1997;(6639):296-300. 访问链接

Tajima T, Niu Q. Extended vacuum solutions and their elementary excitations of the Yang-Mills gauge theory. Modern Physics Letters A. 1997;(27):2037-2045.

Zhang H, Lai L, Wang L, Han Y, Tang Y. A fast and efficient program for modeling protein loops. Biopolymers. 1997;(1):61-72.

Du RR, Yeh AS, Stormer HL, Tsui DC, Pfeiffer LN, West KW. g factor of composite fermions around ν=3/2 from angular-dependent activation-energy measurements. Physical Review B - Condensed Matter and Materials Physics. 1997;(12):R7351-R7354.

Kong D, Griffith JD, Richardson CC. Gene 4 helicase of bacteriophage T7 mediates strand transfer through pyrimidine dimers, mismatches, and nonhomologous regions. [Internet]. 1997;(7):2987-2992. 访问链接

Chung WK, Zheng M, Chua M, Kershaw E, Power-Kehoe L, Tsuji M, Wu-Peng SX, Williams J, Jr. SCC, Leibel RL. Genetic modifiers of Lepr(fa) associated with variability in insulin production and susceptibility to NIDDM. Genomics [Internet]. 1997;(3):332-344. 访问链接

Guo LP, Chen Y, Wang EG, Li L, Zhao ZX. Identification of a new C-N phase with monoclinic structure. Chemical Physics Letters. 1997;(1-2):26-30.

Guo LP, Chen Y, Wang EG, Li L, Zhao ZX. Identification of a new tetragonal C-N phase. Journal of Crystal Growth. 1997;(4):639-644.

Xiao R-P, Valdivia HH, Bogdanov K, Valdivia C, Lakatta EG, Cheng H. The immunophilin FK506-binding protein modulates Ca²⁺ release channel closure in rat heart. Journal of Physiology [Internet]. 1997;(2):343-354. 访问链接

Liu DZ, Xie XC. In-plane magnetic-field-induced Kosterlitz-Thouless-type metal-insulator transition in coupled double quantum wells. Physical Review B - Condensed Matter and Materials Physics. 1997;(23):15824-15827.

威廉. J· 米切尔著, 范海燕, 胡泳译. 比特之城: 空间· 场所· 信息高速公路. 生活· 读书· 新知三联书店出版社. 1997.

Chen ZM, Zhang YH, Tang XY, Li JL. Kinetic Study of the reaction of CFC substitutes with hydroxyl radicals by long path FTIR spectrometry. China Environmental Science. 1997;17(1):41-44.

Zhou Y-Y, Cheng H, Bogdanov KY, Hohl C, Altschuld R, Lakatta EG, Xiao R-P. Localized cAMP-dependent signaling mediates β2-adrenergic modulation of cardiac excitation-contraction coupling. American Journal of Physiology - Heart and Circulatory Physiology [Internet]. 1997;(3 42-3):H1611-H1618. 访问链接

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