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author = "Liu Yi"
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Found 409 documents, displaying page 1 of 41

Material Balance and Ecological Restructuring Trajectory in China: The Case of Phosphorus

Author(s) : Liu Yi
Description :
Repository : Wageningen University and Researchcenter Publications
Language(s) : English

Implications of Materials Accounting for Environmental Policy Making: The Case of Phosphorus in Dianchi Lake Watershed

Author(s) : Liu Yi
Description :
Repository : Wageningen University and Researchcenter Publications
Language(s) : English

Phosphorus Flows in China. Physical Profiles and Environmental Regulation

Author(s) : Liu Yi
Description : The substantial shifts in the structure of domestic phosphorus (P) throughput, during a crucial period of social and economic transitions, brings forth a challenge for curbing the extensive eutrophication of surface waters in China. The lack of an overall knowledge on the societal metabolism of P ha...
Repository : Wageningen University and Researchcenter Publications
Language(s) : English

Fruiting body initiation in the basidiomycete Coprinus cinereus

Author(s) : Liu, Yi
Description : Diss., Naturwissenschaften ETH Zürich, Nr. 14084, 2001
Repository : ETH E-Collection
Language(s) : English

Damping technologies for automotive panel structures

Author(s) : Liu, Yi
Description : Diss., Eidgenössische Technische Hochschule ETH Zürich, Nr. 20026, 2011
Repository : ETH E-Collection
Language(s) : English

Video streaming over cooperative wireless networks

Author(s) : Liu, Yi
Description : We study the problem of broadcasting video streams over a Wireless Metropolitan Area Network (WMAN) to many mobile devices. We propose a cooperative network in which several elected mobile devices share received video data over a Wireless Local Area Network (WLAN). The proposed system significantly ...
Repository : Summit - Simon Fraser University research repository
Language(s) : English

Finiteness of nonzero degree maps between three-manifolds

Author(s) : Liu, Yi
Description : In this paper, we prove that every orientable closed 3-manifold dominates at most finitely many homeomorphically distinct irreducible non-geometric 3-manifolds. Moreover, for any integer $d>0$, every orientable closed 3-manifold $d$-dominates only finitely many homeomorphically distinct 3-manifold...
Repository : arXiv
Language(s) : Undetermined

A Jorgensen-Thurston theorem for homomorphisms

Author(s) : Liu, Yi
Description : In this note, we provide a description of the structure of homomorphisms from a finitely generated group to any torsion-free (3-dimensional) Kleinian group with uniformly bounded finite covolume. This is analogous to the Jorgensen-Thurston Theorem in hyperbolic geometry. , Comment: 16 pages, 4 figur...
Repository : arXiv
Language(s) : Undetermined

Virtual cubulation of nonpositively curved graph manifolds

Author(s) : Liu, Yi
Description : In this paper, we show that a nontrivial compact graph manifold is nonpositively curved if and only if its fundamental group virtually embeds into a right-angled Artin group. As a consequence, nonpositively curved graph manifolds have linear fundamental groups. , Comment: 31 pages, 2 figures, accept...
Repository : arXiv
Language(s) : Undetermined

Selection dramatically reduces effective population size in HIV-1 infection

Author(s) : Liu Yi , Mittler John E
Description :

Abstract

Background

In HIV-1 evolution, a 100–100,000 fold discrepancy between census size and effective population size (Ne) has been noted. Although it is well known that selection can reduce Ne, high in vivo mutat...

Repository : DOAJ-Articles
Language(s) : English
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Found 409 documents, displaying page 1 of 41