1000 resultados para 13-125A
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Develop recommendations and workplan to establish environmental baselines and monitoring;alternative livelihoods; planning and management; and institutional arrangements.
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Review of available data and assessments for Hilsa (Tenulaosa ilisha) and Indian Mackerel (Rastrelliger kanagurta). Identification of future assessment approaches and data needs and stock status advice.
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The workshop objectives were to discuss the status of Community Based Coastal Resource Management (CB-CRM), Integrated Coastal Management (ICM) and Co-management in Indonesia,Malaysia, Myanmar and Thailand.
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This workshop was implemented as part of the Transboundary Diagnostic Analysis (TDA). The main focus was on the shrimp and fish aquaculture sectors and addressed issues such as aquatic animal health and transfers of aquatic animals and plants.
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The Chilika Health report Card is based on three categories: water quality, fisheries and biodiversity.
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The workshop focused on capacity utilisation estimation using Data Envelopment Analysis (DEA) to assess the fishing capacity of fleets.
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国家科技攻关课题(2004BA526B05); 淡水生态与生物技术国家重点实验室开发课题(2005FB02)资助
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Submitted by zhangdi (zhangdi@red.semi.ac.cn) on 2009-04-13T11:45:31Z
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The emission wavelength of a GaInNAs quantum well (QW) laser was adjusted to 1310 nm, the zero dispersion wavelength of optical fibre, by an appropriate choice of QW composition and thickness and N concentration in the barriers. A triple QW design was employed to enable the use of a short cavity with a small photon lifetime while having sufficient differential gain for a large modulation bandwidth. High speed, ridge waveguide lasers fabricated from high quality material grown by molecular beam epitaxy exhibited a damped modulation response with a bandwidth of 13 GHz.
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Equilibrium geometries, stabilities, and electronic properties of TinAl (n=1-13) clusters have been studied by using density-functional theory with local spin density approximation and generalized gradient approximation. The ground-state structures of TinAl clusters have been obtained. The resulting geometries show that the aluminum atom remains on the surface of clusters for n<9, but is slowly getting trapped beyond n=9, meanwhile, the Al atom exhibits a valent transition from monovalent to trivalent. The geometric effects and electronic effects clearly demonstrate the Ti4Al cluster to be endowed with special stability. The studies on the bonds indicate the change from ionic to metalliclike. (C) 2004 American Institute of Physics.