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Search Results: 1 - 10 of 11119 matches for " Zhiqian Ye "
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Algorithm for Cost Non-preemptive Scheduling of Partial k-Trees  [PDF]
Yiming Li, Zhiqian Ye, Xiao Zhou
Open Journal of Applied Sciences (OJAppS) , 2012, DOI: 10.4236/ojapps.2012.24B053
Abstract: Let G be a graph, in which each vertex (job) v has a positive integer weight (processing time) p(v) and eachedge (u,v) represented that the pair of jobs u and v cannot be processed in the same slot. In this paper we assume that every job is non-preemptive. Let C={1,2,...} be a color set. A multicoloring (scheduling) F of G is to assign each job v a set of p(v) consecutive positive integers (processing consecutive time slots) in C so that any pair of adjacent vertices receive disjoint sets. Such a multicoloring is called a non-preemptive scheduling. The cost non-preemptive scheduling problem is to find an optimal multicoloring of G.
Cost Edge-Coloring of a Cactus  [PDF]
Zhiqian Ye, Yiming Li, Huiqiang Lu, Xiao Zhou
World Journal of Engineering and Technology (WJET) , 2015, DOI: 10.4236/wjet.2015.33C018

Let C be a set of colors, and let \"\" ?be an integer cost assigned to a color c in C. An edge-coloring of a graph \"\" ?is assigning a color in C to each edge \"\" ?so that any two edges having end-vertex in common

A Dynamic Programming Algorithm for the Ridersharing Problem Restricted with Unique Destination and Zero Detour on Trees  [PDF]
Yiming Li, Huiqiang Lu, Zhiqian Ye, Xiao Zhou
Journal of Applied Mathematics and Physics (JAMP) , 2017, DOI: 10.4236/jamp.2017.59140
We deal with the problem of sharing vehicles by individuals with similar itineraries which is to find the minimum number of drivers, each of which has a vehicle capacity and a detour to realize all trips. Recently, Gu et al. showed that the problem is NP-hard even for star graphs restricted with unique destination, and gave a polynomial-time algorithm to solve the problem for paths restricted with unique destination and zero detour. In this paper we will give a dynamic programming algorithm to solve the problem in polynomial time for trees restricted with unique destination and zero detour. In our best knowledge it is a first polynomial-time algorithm for trees.
Impact of Educational Expenditure on the Development of Regional Marine Economy: Evidence from Chinese Coastal Provinces  [PDF]
Zhiqian Li
Journal of Human Resource and Sustainability Studies (JHRSS) , 2018, DOI: 10.4236/jhrss.2018.61030
Abstract: Marine economy is an important growth stage of Chinese economic development in the 21st century. The Chinese marine economy has become a technology and capital-intensive economy from extensive past development of economy. The human capital factor has become an indispensable and important driving force for the domestic marine economy. Different with the existing literature on human capital elements, which is focused on the study of the average level of education represented by the stock of human capital, this article uses the per capita education expenditure within the region to measure human capital increment, explain the coastal marine economic development momentum. At the same time, the author analyzes the correctness of this interpretation and analysis from the data of 11 coastal provinces and autonomous regions in China from 2006 to 2014. Based on this, some feasible policy suggestions would be put forward.
The impact of Metastasis Suppressor-1, MTSS1, on oesophageal squamous cell carcinoma and its clinical significance
Fei Xie, Lin Ye, Jinfeng Chen, Nan Wu, Zhiqian Zhang, Yue Yang, Lijian Zhang, Wen G Jiang
Journal of Translational Medicine , 2011, DOI: 10.1186/1479-5876-9-95
Abstract: In this study, we assessed the expression levels of MTSS1 in tumours and its matched adjacent non-tumour tissues obtained from 105 ESCC patients. We also used ESCC cells with differing MTSS1 expression and assessed the influence of MTSS1 on ESCC cells.Down-regulation of MTSS1 expression was observed both in oesophageal tumour tissues and ESCC cancer cell lines. We also reported that MTSS1 expression was associated with tumour grade (p = 0.024), lymph node metastasis (p = 0.010) and overall survival (p = 0.035). Patients with high levels of MTSS1 transcripts had a favorable prognosis in comparison with those who had reduced or absent expression levels. Using over-expression and knockdown approach, we created sublines from ESCC cells and further demonstrated that MTSS1 expression in ESCC cells significantly influenced the aggressiveness of the oesophageal cancer cells, by reducing their cellular migration and in vitro invasiveness.MTSS1 serves as a potential prognostic indicator in human ESCC and may be an important target for cancer therapy.Tumour metastasis is the most significant contributor to the mortality of patients with cancers. Metastasis of cancer cells proceeds via a long series of sequential, interrelated steps modulated largely by activators and suppressors of metastasis. Metastasis suppressor genes are defined by their ability to inhibit metastasis at any step of the metastatic cascade. To date, only a limited number of metastasis suppressor genes, including NM23, KAI1, KiSS1, MKK4, BRMS1, RHOGDI2, CRSP3 and VDUP1, have been identified [1]. These metastasis suppressor genes inhibit metastasis of a cancer cell line in vivo without blocking its tumourigenicity.MTSS1 (metastasis suppressor-1), also known as MIM (Missing-In-Metastasis), MIM-B, BEG4 (Basal cell carcinoma-enriched gene 4) or KIAA0429, was first identified as a potential metastasis suppressor gene missing in metastatic bladder carcinoma cell lines [2] and subsequently investigated in some types
Strategies of polyhydroxyalkanoates modification for the medical application in neural regeneration/nerve tissue engineering  [PDF]
Xiaoyun Lu, Leilei Wang, Zhiqian Yang, Haixia Lu
Advances in Bioscience and Biotechnology (ABB) , 2013, DOI: 10.4236/abb.2013.46097

Neural regeneration was once considered to be impossible, especially in the central nervous system where neural regeneration comprise the generation of new neurons, glia, axons, myelin, and synapses. Until recently, neural stem cells/neural progenitor cells (NSCs/NPCs) were identified from various areas of brain and brought hopes to the neural repair and regeneration. Tissue engineering has revolutionized the current neural regeneration technology and it has become a pioneering interdisciplinary field in the areas of biomedical research. Polyhydoxyalkanoate (PHA) as one of biodegradable material has been successfully used as tissue engineering materials. It has also been applied in nerve tissue engineering due to the high biocompatibility and low cytotoxicity. Over the past 10 years, different kinds of modification strategies have been undertaken to improve the properties of PHA to fit the requirements from various fields. Several members of PHA family have been attempted for neural regeneration. This article reviewed the recent modification strategies for improving the properties of PHA and highlighted the pioneer applications in neural regeneration.

Synthesis of polyaluminum chloride with a membrane reactor: Process characteristics and membrane fouling

Zhiqian Ji,Fei He,Zhongzhou Liu,

环境科学学报(英文版) , 2011,
Abstract: Polyaluminum chloride was synthesized with a membrane reactor, in which NaOH was added into AlCl3 solution through the membrane's micropores to reduce the NaOH droplets size. The content of the most efficient species increased to about 80%. The process characteristics in the reaction (i.e., flow velocity, pressure drop), and membrane fouling and cleaning were investigated. The evolution of both flow velocity and pressure drop during the reaction were related to changes in species distribution and solution viscosity. The process characteristics were well interpreted in terms of the Bernoulli equation. After reaction, the membranes were recovered by cleaning with diluted hydrochloride acid. This study is crucial for process design and scale-up of membrane reactors.
The equilibrium between diagenetic calcites and dolomites and its impact on reservoir quality in the sandstone reservoir of Kela 2 gas field

Gao Zhiqian,Yu Bingsong,Lai Xingyun,

自然科学进展 , 2007,
Felicitous Labellings of Some Network Models  [PDF]
Jiajuan Zhang, Bing Yao, Zhiqian Wang, Hongyu Wang, Chao Yang, Sihua Yang
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.63B007
Abstract: Building up graph models to simulate scale-free networks is an important method since graphs have been used in researching scale-free networks. One use labelled graphs for distinguishing objects of communication and information networks. In this paper some methods are given for constructing larger felicitous graphs from smaller graphs having special felicitous labellings, and some network models are shown to be felicitous.
Statistical Analysis of the Progressive Failure Behavior for Fiber-Reinforced Polymer Composites under Tensile Loading
Fang Wang,Jun Ding,Zhiqian Chen
Polymers , 2014, DOI: 10.3390/polym6010145
Abstract: An analytical approach with the help of numerical simulations based on the equivalent constraint model (ECM) was proposed to investigate the progressive failure behavior of symmetric fiber-reinforced composite laminates damaged by transverse ply cracking. A fracture criterion was developed to describe the initiation and propagation of the transverse ply cracking. This work was also concerned with a statistical distributions of the critical fracture toughness values with due consideration given to the scale size effect. The Monte Carlo simulation technique coupled with statistical analysis was applied to study the progressive cracking behaviors of composite structures, by considering the effects of lamina properties and lay-up configurations. The results deduced from the numerical procedure were in good agreement with the experimental results obtained for laminated composites formed by unidirectional fiber reinforced laminae with different orientations.
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