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Search Results: 1 - 10 of 33660 matches for " LiPing Huang "
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A Novel Approach for Text Extraction from Complex Natural Scene
Tongcheng Huang,Liping Yin
Research Journal of Applied Sciences, Engineering and Technology , 2012,
Abstract: In this study, hybrid Particle Swarm Optimization (PSO)-based Wavelet Neural Network (WNN) for natural scene text extraction is presented. In our approach, wavelet transformation is done on the different current and the wavelet coefficients are obtained. The wavelet coefficients are given as inputs to the wavelet neural network trained by Particle Swarm Optimization (PSO-WNN). The final network output of real text regions is different from those non-text regions. The experimental results demonstrate the effectiveness of the proposed method for complex natural scene.
In Vitro Mass Scale Propagation of Wild Cymbidium lowianum with a Rare and Endangered Plant  [PDF]
Yuying Wang, Zhilin Li, Liping Huang, Jun Su
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.47182

The wild Cymbidium lowianum, a national-level rare and endangered species of Orchid, is an excellent garden plant with ornamental flowers with striking, deep red lips in a V-shaped formation. The objective of this study was to establish a micropropagation protocol system via immature seeds of wild Cymbidium lowianum, evaluate the Murashige and Skoog (MS), half-strength Murashige and Skoog (1/2 MS) medium, 6-benzylaminopurine (BA), a-napthaleneacetic acid (NAA), organic additions activated charcoal (AC) and banana pulp (BP) effects on the different morphogenesis (seed germination, multiple shoot and rooting) in vitro. The optimal combination for the germination of seed was 1.0 mg·L-1 BA with 0.5 mg·L-1 NAA in 1/2 MS, and addition 0.3%AC, which resulted in 95% seed germination in 90 days. The best formulation for multiple shoot was 1/2 MS medium containing 2.5 mg·L-1 BA, 0.5 mg·L-1 NAA and addition 8% BP in which produced 19.8 shoots per protocorm in 60 days. Multiple shoots were cut and

Existence and Uniqueness of Positive (Almost) Periodic Solutions for a Neutral Multi-Species Logarithmic Population Model with Multiple Delays and Impulses  [PDF]
Zhenguo Luo, Jianhua Huang, Liping Luo, Binxiang Dai
Open Journal of Applied Sciences (OJAppS) , 2013, DOI: 10.4236/ojapps.2013.32032

In this paper, by using the contraction mapping principle and constructing a suitable Lyapunov functional, we established a set of easily applicable criteria for the existence, uniqueness and global attractivity of positive periodic solution and positive almost periodic solution of a neutral multi-species Logarithmic population model with multiple delays and impulses. The results improve and generalize the known ones in [1], as an application, we also give an example to illustrate the feasibility of our main results.

SAR Image Change Detection Algorithm Based on Different Empirical Mode Decomposition  [PDF]
Shiqi Huang, Zhigang Liu, Zhe Liu, Liping Wang
Journal of Computer and Communications (JCC) , 2017, DOI: 10.4236/jcc.2017.58002
Abstract: Empirical mode decomposition (EMD) is a data-driven and multi-scale transform theory, and it is a nonlinear and non-stationary signal processing theory. But each EMD decomposition theory has its advantages and disadvantages. Synthetic aperture radar (SAR) imaging is an important remote sensing technique to obtain the change information, and SAR image data belongs to non-stationary signal. So EMD is very suitable for SAR image processing. There are two kinds of typical EMD theories, which are the ensemble empirical mode decomposition (EEMD) and bidimensional empirical mode decomposition (BEMD). Based on the deep study of the two methods, this paper proposed a new SAR image change detection algorithm, which is called the FCD-EMD algorithm, i.e. fusion change detection based on EMD. So FCD-EMD algorithm can obtain more accurate information, which not only includes the directional information obtained by EEMD, but also can contain the spatial information got by BEMD. The main contribution of the FCD-EMD algorithm is to fuse the detail information in different directions, so that the results obtained are more accurate than the individual method. On the other hand, it can reduce the influence of speckle noise in SAR images by feature selections. The actual SAR image data verify the algorithm proposed in this paper and good experimental results are obtained, which show that the new method is feasible.
System Identification of Wood Drying Process Based on ARMAX Model  [PDF]
Zheng Zhou, Pinxiu Zhang, Baofu Huai, Liping Huang
Agricultural Sciences (AS) , 2019, DOI: 10.4236/as.2019.103020
This article presents system identification of wood drying process based on ARMAX model. Temperature and equivalent moisture content are considered as inputs, and moisture content of the wood sample during drying is taken as output of the system. The comparative study of RLS and FF-RLS to identify the system parameters is presented. Simulation results are presented to val-idate the efficacy of the ARMAX model for wood drying process.
Decreased intracellular zinc in human tumorigenic prostate epithelial cells: a possible role in prostate cancer progression
Liping Huang, Catherine P Kirschke, Yunfan Zhang
Cancer Cell International , 2006, DOI: 10.1186/1475-2867-6-10
Abstract: RWPE2 accumulated less intracellular zinc than RWPE1 due to the decreased zinc uptake activity. The mRNA expression of ZIP1 and ZIP3 in RWPE1 and RWPE2 was comparable. However, the protein expression of ZIP1 in RWPE2 was lower than that in RWPE1. ZIP3 was detected in a lysosomal compartment of RWPE2 while no ZIP3 was detected in the same compartment of RWPE1. Over-expression of ZIP1 in RWPE2 resulted in an elevation of intracellular zinc concentration and suppression of cell growth of RWPE2 due to the increased apoptosis.These findings suggest that tumorigenic prostate epithelial cells accumulated less intracellular zinc than non-tumorigenic prostate epithelial cells. The reduction in capacity for accumulation of intracellular zinc in tumorigenic prostate epithelial cells may be caused by the decrease in the ZIP1 protein expression and the intracellular redistribution of ZIP3 in RWPE2. RWPE1 and RWPE2 are excellent cellular models to study the association of intracellular zinc levels with prostate cancer progression.It is well known that normal human prostate glands accumulate almost 10-fold higher zinc as compared to other soft tissues, such as liver and kidney [1,2]. Accumulation of cellular zinc and secretion of zinc into the prostatic fluid in prostate glands are essential functions of the prostate secretory epithelial cell [3]. Additionally, low zinc concentration in seminal plasma may affect the mobility of sperm which can result in infertility in men [4-6]. The glandular epithelial cells in the dorsolateral lobe of the prostate accumulate the highest levels of intracellular zinc [3,7]. This is also the area where most prostate cancers occur. This observation strongly suggests that zinc has an important role in prostate cancer development and/or progression. Studies have indicated that the intracellular zinc levels in malignant prostate epithelial cells are dramatically decreased [8,9]. This contrasts with benign prostatic hyperplasia in which the epithelial c
Two Jurassic salamanders with stomach contents from Inner Mongolia, China
LiPing Dong,DiYing Huang,Yuan Wang
Chinese Science Bulletin , 2012, DOI: 10.1007/s11434-011-4729-z
Abstract: Conchostracans and corixids are part of the diet of extant salamanders, an ecologically important fact in a lacustrine environment. Here we report their discovery in the guts of the aquatic Jurassic salamanders Jeholotriton paradoxus and Chunerpeton tianyiensis, formerly abundant at Daohugou, Ningcheng County, Inner Mongolia, China. This reveals something of the ecology of this important, ancient, vertebrate and invertebrate assemblage. The new fossil evidence indicates the highly selective feeding of these Jurassic salamanders; Jeholotriton preyed only on juveniles of the conchostracan Euestheria luanpingensis, and Chunerpeton only on the corixid Yanliaocorixa chinensis. We can infer the dietary differences as a consequence of different jaw and hyoid structures; and thus niche partitioning in Jurassic salamanders.
High concentration retene and methylretene in Silurian carbonate of Michigan Basin
Liping Zhang,Difan Huang,Zhiqin Liao
Chinese Science Bulletin , 1999, DOI: 10.1007/BF02884927
Abstract: Retene and methylretene have been identified by gas chromatography-mass spectrometry in aromatic hydrocarbon fractions of Silurian carbonate extracts of the Michigan Basin. Retene identified in pre-Devonian carbonates indicates that the compound not only is the biomarker of higher plants but also derived from alga or bacterium. The geochemical significance of methylretene has been discussed.
Research on Competitive Pricing Models Based on Bertrand and Stackelberg Game under Electronic Commerce
Lijun Li,Liping Yu,Xiaoyuan Huang
International Journal of Business and Management , 2009,
Abstract: Competitive pricing models based on Bertrand and Stackelberg game between manufacturer and retailer are discussed under electronic commerce. A system consisting of a manufacturer, a retailer and customers is considered. In the Bertrand game setting, the manufacturer and the retailer decide simultaneously the prices of products. And in the Stackelberg game setting, the manufacturer is a leader and the retailer is a follower. The manufacturer and the retailer establish models with the respective objection of maximizing expected profit, and transaction cost is considered in these models. The manufacturer regards the price of products sold to retailer through traditional and online channels as decision variables, while the retailer’s decision variable is the price of products sold to customers. At last, the numerical examples are given to show application of pricing models and difference of equilibrium pricing and expected profits between Bertrand and Stackelberg game.
Integrating Activity-Based Costing with Target Costing and Principal-Agent Incentives
Liping Yu,Lijun Li,Xiaoyuan Huang
International Journal of Business and Management , 2009,
Abstract: The current studies of cost management mainly focus on the cost control of transactions and activities, which is a basic function of cost management. This paper analyzes activity-based costing (ABC) and principal-agent incentives, and target costing (TC) and principal-agent incentives with regard to both functional and institutional aspects of cost management in agent theory framework, and reaches the point that a integration of activity-based costing and target costing based on principal-agent incentives is a cost optimization on activity centers basis of operation. An optimization based on incentives, cooperation and trust, which will reduce internal conflicts and enhance company cohesiveness. Therefore, the function of cost management can be fully realized and cost target can be reached.
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