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| 1 | 涡轮叶栅前缘上游端壁气膜冷却的流场实验研究显示文摘对前缘上游端壁有单排和双排孔冷却的大尺寸低速涡轮导向叶栅进行了气动测量、热示踪和端壁流场显示 ,在吹风比 1~ 3范围获得了叶栅内的详细流场、冷气的空间分布和端壁上的流动图案。结合先前测得的没有冷却时的流场数据 ,这些结果表明端壁气膜冷却对叶栅流场结构有重大影响 ,吹风比是主宰射流与二次流间相互作用的主要因素 ,双排孔喷射使冷气比单排孔喷射更贴近端壁。低吹风比喷射冷气不能到达压力面并被二次流逐渐卷离端壁 ;中吹风比喷射有效的抑制了二次流的形成 ,并使端壁流线偏向于无粘流流线 ,冷气很均匀的覆盖在端壁上 ;高吹风比喷射可将冷气抛射到压力面上 ,双排孔情况下甚至使二次流反向 。 | 刘高文 刘松龄 许都纯 Lapw orth B L Forest A E | 2001 | 航空动力学报2001,16,2: | 20 |
| 2 | 涡轮叶栅前缘上游端壁气膜冷却的传热实验研究显示文摘对前缘上游有单排和双排孔冷却的涡轮导向叶栅端壁进行了详细的传热实验 ,在吹风比 1 ,2 ,3下获得了当地气膜冷却效率和换热系数 ,结合流场测量结果分析了端壁冷却和换热规律。结果表明端壁气膜冷却在很大程度上受二次流的影响 ,冷却效果主要由吹风比决定 ,低吹风比喷射时 ,压力面附近的一个三角形区域没有冷气的覆盖 ,中、高吹风比喷射可以大幅度提高平均冷却效率并使冷气很均匀的覆盖在端壁上 ,双排孔喷射比单排孔喷射平均效率提高 1倍左右。结果还表明尽管冷气喷射使端壁换热系数随吹风比的增大而显著增大 ,气膜冷却还是能有效的降低端壁的热负荷 ,其中以中吹风比双排孔喷射的效果最为显著。 | 刘高文 刘松龄 朱惠人 Lapworth B L Forest A E | 2001 | 航空动力学报2001,16,3: | 15 |
| 3 | Simulating global soil-CO_2 flux and its response to climate change显示文摘It has been argued that increased soil respiration would become a major atmospheric source of CO\-2 in the event of global warming. The simple statistical models were developed based on a georeferenced database with 0 5°×0 5° longitude/latitude resolution to simulate global soil\|CO\-2 fluxes, to investigate climatic effects on these fluxes using sensitivity experiments, and to assess possible responses of soil\|CO\-2 fluxes to various climate change scenarios. The statistical models yield a value of 69 PgC/a of global soil\|CO\-2 fluxes for current condition. Sensitivity experiments confirm that the fluxes are responsive to changes in temperature, precipitation and actual evapotranspiration, but increases in temperature and actual evapotranspiration affect soil\|CO 2 fluxes more than increases in precipitation. Using climatic change projections from four global circulation models, each corresponding to an equilibrium doubling of CO 2, it can be found that the largest increases in soil\|CO 2 fluxes were associated with the boreal and tundra regions. The globally averaged soil\|CO 2 fluxes were estimated to increase by about 35% above current values, providing a positive feedback to the greenhouse effect. | PENG Chang\|hui 1* , Michael J. Apps\+2 (1 Ontario Forest Research Institute, Ministry of Natural Resources, 1235 Queen Street East, Sault Ste. Marie, ON P6A 2E5,Canada. E\|mail: pengc@gov.on.ca 2 Morthern Forestry Center, Canadian Forest Serv | 2000 | Journal of Environmental Sciences2000,12,3: | 2 |
| 4 | Expert elicitation approach for performing ATHEANA quantification 显示文摘 | FORESTER J BLEY D COOPER S E | 2004 | Reliability Engineering and System Safety2004,83,2: | 1 |
| 5 | Is there a single mechanism for fatty acid regu-lation of gene transcription显示文摘 | Duplus E Forest C | 2002 | Biochemical Pharmcology2002,64,5: | 1 |
| 6 | Oxidative stress induced apoptosis prevented by tronox显示文摘 | Forest V J Kang Y H McClain D E | 1994 | Free Radic Buol Med1994,16,: | 1 |
| 7 | Review of CMOS im- age sensors 显示文摘 | Bigas M Cabruja E Forest 3 | 2006 | Microelectronics Journal2006,37,5: | 1 |
| 8 | Malignant transformation in human chondrosarcoma cells supported by telomerase activation and tumor suppressor inactivation显示文摘 | J·A·Martin E·Forest J·A·Block | 2002 | Cell Growth and Differentiation2002,13,9: | 1 |
| 9 | Technological networks and the spread of computer viruses显示文摘 | Bastrop J Forest S Newman M E J | | 0,,304: | 1 |
| 10 | Fourth-order symplectic integration显示文摘 | Forest E Ruth D | 1990 | PhysicaD1990,43,1: | 1 |
| 11 | Isolation of a pea(Pisum sativum)seed lipoxygenase promoter by inversepolymerase chain reaction and characterization of its expressionin transgenic tobacco显示文摘 | Forester C Arthur E Crespi S et cd | 1994 | Plant Mol Biol1994,26,1: | 1 |
| 12 | Models of process of technological innovation显示文摘 | | 1991 | Technology Analysis and Strategic Management1991,,2: | 1 |
| 13 | The influence of mixed tree plantations on the nutrition of individual species : a review 显示文摘 | Richards A E Forester D I Bauhus J | 2010 | Tree Physiology2010,30,9: | 1 |
| 14 | Is there a sighle mechanism for fatty acid regulation of gene transcription? 显示文摘 | Duplus E Forest C | 2002 | Biochemical Plamacology2002,64,: | 1 |
| 15 | Physical and optical properties of steam-exploded laser-printed paper显示文摘 | Sharma A K Forester W K Shriver E H | 1996 | Tappi Journal1996,79,5: | 1 |
| 16 | Complete amino acid sequence of puroindoline,a new and cysteine-rich protein with a unique tryptoph-rich domain isolated from wheat endosperm by TritonX-114 phase portioning显示文摘 | Blochet J E Chevalier C Forest E | 1993 | FEBS Letter1993,329,: | 1 |
| 17 | Is there a single mechanism for fatty acid regulation of gene transcription?显示文摘 | DUPLUS E FOREST C | 2002 | Biochem Phamacol2002,64,56: | 1 |
| 18 | Hemoglobin and subunit multiplicity in the rainbow trout hemoglobin system 显示文摘 | Fagol A Forest E Weber R E | 2002 | Fish Physiology and Biochemistry2002,24,: | 1 |
| 19 | Different cellular responses evoked by natural and stoichiometric synthetic chrysotile fibers显示文摘 | Gazzanoa E Forestic E Lescic I G | 2005 | Toxicology and Applied Pharmacology2005,206,: | 1 |
| 20 | Nanofiltration membranes broaden the use of membrane separation technology显示文摘 | Cadotte J E Forester R Kim M | | 0,,: | 1 |