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Search Results: 1 - 10 of 64219 matches for " YANG Lan "
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The Green Sustainable Economic Development Model under Sustainable Use of Energy and Pollution Control  [PDF]
Wanping Yang, Lan Ban
Theoretical Economics Letters (TEL) , 2013, DOI: 10.4236/tel.2013.31004

As concerns about energy and environment emerge the concept of sustainable development, this paper develops a five-sector endogenous technological change economic growth model considering sustainable use of energy and pollution control. We introduce energy and environment into production function and utility function, solve the conditions for sustainable economic growth with the optimal control method, further reveal the dynamic relationship which should be met by energy consumption rate, pollution control and sustainable economic growth, prove the possibility of sustainable economic growth and reveal the path and conditions of sustainable economic growth under the dual constraints of energy and environment.

Multifractal Analysis of the Asympyotically Additive Potentials  [PDF]
Lan Xu, Long Yang
Journal of Applied Mathematics and Physics (JAMP) , 2014, DOI: 10.4236/jamp.2014.213133
Abstract: Multifractal analysis studies level sets of asymptotically defined quantities in dynamical systems. In this paper, we consider the u-dimension spectra on such level sets and establish a conditional variational principle for general asymptotically additive potentials by requiring only existence and uniqueness of equilibrium states for a dense subspace of potential functions.
Orientation and Functions of Library in Quality Education of College
Lan Yang
International Education Studies , 2011, DOI: 10.5539/ies.v4n2p195
Abstract: Quality education is the core of college education. Libraries are the second class for students due to the extremely important position and function in quality education. Libraries are the best place for cultivating students’ morals, the important front for improving students’ scientific and cultural qualities, and the effective facilities for developing special technological education, serving as favorable conditions for promoting students’ comprehensive qualities. The main idea for libraries strengthening quality education is to build a “people-oriented” management thought, create service equipments and environment with humanism, stick to human service style, and improve the quality of library staff.
Stable self-similar blow-up dynamics for slightly $L^2$-supercritical generalized KdV equations
Yang Lan
Mathematics , 2015,
Abstract: In this paper we consider the slightly $L^2$-supercritical gKdV equations $\partial_t u+(u_{xx}+u|u|^{p-1})_x=0$, with the nonlinearity $5
Analysis of Energy Consumption Scenarios of Building in Guangzhou in a Mid-Long Term  [PDF]
Lan Tang, Xiaoqing Zhou, Xin Yang
Journal of Power and Energy Engineering (JPEE) , 2014, DOI: 10.4236/jpee.2014.24045
Abstract: According to the year of 2009, calculated energy consumption quantity and energy consumption structure of building in Guangzhou to 2030, analyzed adjustment and approach of sustainable development and potential of energy conservation which can provide commendable technology progress in every department.
Polarization Filtering Method for Suppressing Surface Wave in Time-Frequency Domain  [PDF]
Xiaoming Yang, Yang Gao, Wenzhong Zhang, Yanchun Wang, Meihua Lan
International Journal of Geosciences (IJG) , 2019, DOI: 10.4236/ijg.2019.104028
Abstract: In order to suppress the surface wave in three-component seismic exploration, according to the polarization characteristics of body wave and surface wave, a time-frequency domain polarization filtering method based on wavelet transform was studied. A covariance matrix was constructed in the time-frequency domain for the three-component seismic data, measured the polarization parameters of seismic waves. Combining the corresponding eigenvalues and eigenvectors of the matrix, the elliptic rate and elevation angle were used as constraints, and the polarization filter function was built to separate the surface waves. The separated surface waves were inversely transformed and then were adaptively subtracted from the original records. After the polarization filtering suppressed the surface wave, the signal-to-noise ratio of the converted wave was effectively improved. It laid a good foundation for the next seismic data processing and seismic exploration development. The actual data processing results show that the method can effectively extract surface waves from three-component seismic records and avoid the interference of surface waves on seismic signals.
Epigenetic regulation: methylation of histone and non-histone proteins
Fei Lan,Yang Shi
Science China Life Sciences , 2009, DOI: 10.1007/s11427-009-0054-z
Abstract: Histone methylation is believed to play important roles in epigenetic memory in various biological processes. However, questions like whether the methylation marks themselves are faithfully transmitted into daughter cells and through what mechanisms are currently under active investigation. Previously, methylation was considered to be irreversible, but the recent discovery of histone lysine demethylases revealed a dynamic nature of histone methylation regulation on four of the main sites of methylation on histone H3 and H4 tails (H3K4, H3K9, H3K27 and H3K36). Even so, it is still unclear whether demethylases specific for the remaining two sites, H3K79 and H4K20, exist. Furthermore, besides histone proteins, the lysine methylation and demethylation also occur on non-histone proteins, which are probably subjected to similar regulation as histones. This review discusses recent progresses in protein lysine methylation regulation focusing on the above topics, while referring readers to a number of recent reviews for the biochemistry and biology of these enzymes
The role of Smad signaling in vascular and hematopoietic development revealed by studies using genetic mouse models
Yu Lan,Xiao Yang
Science China Life Sciences , 2010, DOI: 10.1007/s11427-010-0087-3
Abstract: Smads are intracellular mediators of transforming growth factor β (TGF-β) superfamily signaling. In this review, we focus on the genetic mouse models for Smad pathways, which have provided functional evidence regarding the complex circuitry in angiogenesis and hematopoiesis during development. In the early stages of vascular development, TGF-β signaling is a contributing factor in angiogenesis and vascular maturation. Whereas in the later embryogenesis, selected molecules of Smad pathways, such as TGF-β type II receptor (TbRII), ALK5, and Smad5, seem to be dispensable for vessel morphogenesis and integrity. TGF-β signaling is not required in the induction of hematopoietic precursors from mesoderm, but inhibits the subsequent expansion of committed hematopoietic precursors. By contrast, bone morphogenetic protein 4 (BMP4) has long been acknowledged pivotal in mesoderm induction and hematopoietic commitment during development. However, recent genetic evidence shows the BMP4-ALK3 axis is not crucial for the formation of hematopoietic cells from FLK1+ mesoderm. Because of the highly redundant mechanisms within the Smad pathways, the precise role of the Smad signaling involved in vascular and hematopoietic development remains nebulous. The generation of novel cell lineage restricted Cre transgenes would shed new light on the future relevant investigations.
A Modified Version of Chordal Ring
Jin Lan,Yang Yuanyuan
计算机科学技术学报 , 1986,
Abstract: Topological design of intereonnection network is a key factor of developingparallel/distributed processing systems composed of a large number of microcomputermodules. For this purpose a double-chordal ring intereonnection network was proposed. Themost attractive of its advantages is that for an optimally designed network with N modules itsdiameter can he reduced to O(N~(1/3)) compared with O(N~(1/2)) for a simple chordal ring. Theessential properties of double-chordal ring network arc presented, and formulae for calculatingits diameter are derived. These formulae lead to a distributed computational routing algorithmand a way of optimization of the network parameters (maximal number of nedes and optimalchordal lengths) for a given diameter.
Clinical application of dredging intestines
YANG Sheng-Lan
Zhong Xi Yi Jie He Xue Bao , 2005,
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