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Search Results: 1 - 10 of 20438 matches for " Dan Luo "
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Research on Low-Carbon City Construction and Development Strategy—A Case Study of Shenzhen  [PDF]
Dan Yao, Jing Luo, Mu Zhang
Low Carbon Economy (LCE) , 2013, DOI: 10.4236/lce.2013.42007
Abstract:

Low carbon economy is full of significance to realize sustainable development of a city. After making a review of global low carbon community construction by summarizing their features and routes, the authors set up a low-carbon economical evaluation system which consists of 3 layers, 3 systems and 14 indicators. What’s more, PCA (principal component analysis) and AHP (analytic hierarchy process) are adopted to evaluate the level of low-carbon economic development in Shenzhen. The facts prove that Shenzhens low-carbon economic development level has formed certain foundation with up tendency in various indicators. Finally, the authors propose suggestions and strategies for developing low-carbon economic development for city of Shenzhen.

Research on Explicit and Tacit Knowledge Interaction in Software Process Improvement Project  [PDF]
Jiangping Wan, Dan Wan, Weiping Luo, Xiaoyao Wan
Journal of Software Engineering and Applications (JSEA) , 2011, DOI: 10.4236/jsea.2011.46038
Abstract: This research develops a knowledge model for Software Process Improvement (SPI) project based on knowledge creation theory and its twenty-four measurement items, and proposes two hypothesizes about the interaction of explicit knowledge and tacit knowledge in SPI. Eleven factors are extracted through statistical analysis. Three knowledge-creation practices for capturing tacit knowledge contribute greatly to SPI, which are communication among members, crossover collaboration in practical work and pair programming. Two knowledge-creation practices for capturing explicit knowledge have significant positive impact on SPI, which are integrating project document and on-the-job training. Ultimately, suggestions for improvement are put forward, that is, encouraging communication among staff and integrating documents in real time, and future research is also illustrated.
Effects of Tube Depth and Infusion Rate of Continuous Humidification by Endotracheal Intubation on Humidification Effect  [PDF]
Hui Sun, Dan Li, Wan Luo, Lin Feng
Open Journal of Nursing (OJN) , 2017, DOI: 10.4236/ojn.2017.71011
Abstract: Objective: To investigate the continuous humidification tube insertion depth of endotracheal intubation and the flow rate of the wetting effect. Methods: From October 2008 to May 2010, among 132 patients of oral and maxillofacial surgery with tracheal intubation, continuous infusion can be adjusted to the wet method; according to the wet pipe, insertion depth of the flow rate is divided into four groups, by four different depths and velocities of the wetting effect, to be analyzed. Results: B group was significantly lower than other groups satisfied with indicators of four significantly different effects of humidification. Conclusion: When continuous humidification tube insertion depth of endotracheal intubation is 10 - 12 cm, and flow rate is 15 - 20 ml/h, the wetting effect will achieve greater satisfaction.
Modification Effect of Nano-Graphene Oxide on Properties and Structure of Polysulfone Ultrafiltration Membrane  [PDF]
Hao Yuan, Lahua Jin, Dan Luo, Chen Ge
Journal of Environmental Protection (JEP) , 2018, DOI: 10.4236/jep.2018.911074
Abstract: In order to improve the purification properties of polysulfone (PSF) ultrafiltration membranes (UFM), nano-graphene oxide (nano-GO) was taken as modifier, and the physical blending process was adopted in our experiment. The microstructure, surface morphology and functional groups of modified UFM have been characterized respectively by scanning electron microscopy, atomic force microscopy and Fourier transform infrared spectroscopy, and the static contact angle between the membrane surface and the water droplet has also been detected to show the change of its hydrophilicity. Through experiments, it has been found that modified UFM has larger and more developed finger micro-pores, and there exist a large number of -OH groups on its surface, and also its hydrophilicity has been enhanced. The result of the experiments show that the modified UFM may keep rejection above 97% and its water flux can be reached at about 219.1 L/(m2·h) under pressure of 1 bar if 0.4 wt% of nano-GO was added. Additionally, the nano-GO can increase the flux recovery radio (FRR) of the membranes, and the maximum FRR was observed as 74.4% if 0.3 wt% of nano-GO was appended.
Cell-Free Protein Expression under Macromolecular Crowding Conditions
Xumeng Ge, Dan Luo, Jianfeng Xu
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0028707
Abstract: Background Cell-free protein expression (CFPE) comprised of in vitro transcription and translation is currently manipulated in relatively dilute solutions, in which the macromolecular crowding effects present in living cells are largely ignored. This may not only affect the efficiency of protein synthesis in vitro, but also limit our understanding of the functions and interactions of biomolecules involved in this fundamental biological process. Methodology/Principal Findings Using cell-free synthesis of Renilla luciferase in wheat germ extract as a model system, we investigated the CFPE under macromolecular crowding environments emulated with three different crowding agents: PEG-8000, Ficoll-70 and Ficoll-400, which vary in chemical properties and molecular size. We found that transcription was substantially enhanced in the macromolecular crowding solutions; up to 4-fold increase in the mRNA production was detected in the presence of 20% (w/v) of Ficoll-70. In contrast, translation was generally inhibited by the addition of each of the three crowding agents. This might be due to PEG-induced protein precipitation and non-specific binding of translation factors to Ficoll molecules. We further explored a two-stage CFPE in which transcription and translation was carried out under high then low macromolecular crowding conditions, respectively. It produced 2.2-fold higher protein yield than the coupled CFPE control. The macromolecular crowding effects on CFPE were subsequently confirmed by cell-free synthesis of an approximately two-fold larger protein, Firefly luciferase, under macromolecular crowding environments. Conclusions/Significance Three macromolecular crowding agents used in this research had opposite effects on transcription and translation. The results of this study should aid researchers in their choice of macromolecular crowding agents and shows that two-stage CFPE is more efficient than coupled CFPE.
Phasing-Out of Paper Based Cheques in the UK Will Benefit Financial Institutions, Individuals and Businesses
Dan Shu,Huawei Luo,Wei Wang
International Journal of Business and Management , 2010, DOI: 10.5539/ijbm.v5n9p217
Abstract: Paper-based cheques have been in use for about 350 years. And it has been played a very important role in people’s lives (Barrow, 2009). While the use of paper based cheques is continue to decline in the world. In many countries, such as Netherlands and Sweden, people there have already stopped using paper based cheques, or there are only small amount of people using cheques. This trend also exists in UK. The UK Payments Council has decided to modernise the payment system and also set a date for the abolition of paper based cheques. The UK Payments Council claimed that the phasing-out of paper based cheques in the UK would benefit financial institutions, individuals and businesses. This essay will firstly look at the current situation of the use of paper based cheques in UK. Following this, it will discuss the alternative payments methods. Then the timelines for paper based cheques to phase out would be illustrated. Finally, it will discuss the benefits for benefit financial institutions, individuals and businesses separately.
HyperK?hler Manifolds and Birational Transformations in dimension 4
Dan Burns,Yi Hu,Tie Luo
Mathematics , 2000,
Abstract: We show that any birational map between projective hyperK\"ahler manifolds of dimension 4 is composed of a sequence of simple flops or elementary Mukai transformations under the assumption that each irreducible component of the indeterminacy of the birational map is normal.
Modeling of Node Energy Consumption for Wireless Sensor Networks  [PDF]
Hai-Ying Zhou, Dan-Yan Luo, Yan Gao, De-Cheng Zuo
Wireless Sensor Network (WSN) , 2011, DOI: 10.4236/wsn.2011.31003
Abstract: Energy consumption is the core issue in wireless sensor networks (WSN). To generate a node energy model that can accurately reveal the energy consumption of sensor nodes is an extremely important part of protocol development, system design and performance evaluation in WSNs. In this paper, by studying component energy consumption in different node states and within state transitions, the authors present the energy models of the node core components, including processors, RF modules and sensors. Furthermore, this paper reveals the energy correlations between node components, and then establishes the node energy model based on the event-trigger mechanism. Finally, the authors simulate the energy models of node components and then evaluate the energy consumption of network protocols based on this node energy model. The proposed model can be used to analyze the WSNs energy consumption, to evaluate communication protocols, to deploy nodes and then to construct WSN applications.
The Application And Its Profits of Remote Sensing Inform-ation to The Engineering Projects In The Sea Areas of Macao And Modaomen
遥感影像信息在澳门、磨刀门海域工程建设中的应用及其效益

Luo Dan Chen Xuelian,
罗丹
,陈学廉

遥感学报 , 1993,
Abstract: In recent yrars, We were engaged in the dynamic remote sensing monitoring of the projects in the sea areas of Macao and Modaomen. In this work, a problem rose: how to extract the remote sensing image information about underwater objects and structures. As well known, in the fields of resources environment remote sensing, water environment remote sensing is more complicated than land resources remote sensing mainly due to the small range of brightness of the water image pixel and the image is of low density with low pirel brightness. Therefore, the purpose of ocean image process ing is emphasizing and identifying the imforma-tion of underwater objects from water. It is even more technically difficult to extract the remote sensing information of offshore projects, which in pratice needs comprehensive multib-ranch knowledge. In this paper, an inf ormatio n extraction method combining, computer processing and optical processing with remarkable effectiveness is described. For an esample, according to the practical requirement of the projects in the sea areas of Macao and Modamen, successful verification of model flow pattern is provided by means of remote sensing image information. Dydamic image information about the barriers for the reclamaion project in the sea area of Modaomen is provided as well. Fruitful social and economic profit is achieved.
9-[(Furan-2-ylmethyl)amino]-5-(3,4,5-trimethoxyphenyl)-5,5a,8a,9-tetrahydrofuro[3′,4′:6,7]naphtho[2,3-d][1,3]dioxol-6(8H)-one
Gang Luo,Hong Chen,Jing Zhou,Dan-Li Tian
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811027735
Abstract: In title compound, C27H27NO8, the dihydrofuran-2(3H)-one ring and the six-membered ring fused to it both display envelope conformations. The dihedral angle between the benzene ring of the benzo[d][1,3]dioxole group and the other benzene ring is 60.59 (2)°. In the crystal, weak intermolecular C—H...O hydrogen bonds link the molecules into a three-dimensional network. The furan ring is disordered over two sets of sites with occupancies of 0.722 (7) and 0.278 (7)
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