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Search Results: 1 - 10 of 32555 matches for " Rimao Huang "
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Simple Random Sampling-Based Probe Station Selection for Fault Detection in Wireless Sensor Networks
Rimao Huang,Xuesong Qiu,Lanlan Rui
Sensors , 2011, DOI: 10.3390/s110303117
Abstract: Fault detection for wireless sensor networks (WSNs) has been studied intensively in recent years. Most existing works statically choose the manager nodes as probe stations and probe the network at a fixed frequency. This straightforward solution leads however to several deficiencies. Firstly, by only assigning the fault detection task to the manager node the whole network is out of balance, and this quickly overloads the already heavily burdened manager node, which in turn ultimately shortens the lifetime of the whole network. Secondly, probing with a fixed frequency often generates too much useless network traffic, which results in a waste of the limited network energy. Thirdly, the traditional algorithm for choosing a probing node is too complicated to be used in energy-critical wireless sensor networks. In this paper, we study the distribution characters of the fault nodes in wireless sensor networks, validate the Pareto principle that a small number of clusters contain most of the faults. We then present a Simple Random Sampling-based algorithm to dynamic choose sensor nodes as probe stations. A dynamic adjusting rule for probing frequency is also proposed to reduce the number of useless probing packets. The simulation experiments demonstrate that the algorithm and adjusting rule we present can effectively prolong the lifetime of a wireless sensor network without decreasing the fault detected rate.
Protective effect of right coronary artery ischemic preconditioning on myocardial ischemia reperfusion injury #br# in rabbit heart

LI Jun
, LIN Guoqiang, HUANG Rimao, LU Huihui, YANG Zhong, LUO Wanjun

- , 2016, DOI: 10.11817/j.issn.1672-7347.2016.10.006
Abstract: 目的:探索右冠状动脉缺血预处理、后处理对兔的心肌缺血再灌注损伤的保护作用。方法:将30只新西兰大白兔随机分为对照组(n=7)、缺血再灌注损伤组(n=8)、右冠状动脉缺血预处理组(n=8)、右冠状动脉缺血后处理组(n=7),分别抽取术前、术后1及6 h的静脉血,测肌酸激酶同工酶、肌钙蛋白T,计算心肌梗死面积。结果:与缺血再灌注损伤组比较,右冠状动脉缺血预处理组、右冠状动脉缺血后处理组肌酸激酶同工酶、肌钙蛋白T浓度在术后1和6 h明显降低,差异均有统计学意义(均P<0.05);心肌梗死面积明显缩小,差异均有统计学意义(均P<0.05)。结论:在新西兰大白兔的心肌缺血再灌注心肌梗死模型中,右冠状动脉缺血预处理、右冠状动脉缺血后处理对心肌缺血再灌注损伤有明显的保护作用
A systematic analysis of the skeletal muscle miRNA transcriptome of chicken varieties with divergent skeletal muscle growth identifies novel miRNAs and differentially expressed miRNAs
Tingting Li, Rimao Wu, Yong Zhang, Dahai Zhu
BMC Genomics , 2011, DOI: 10.1186/1471-2164-12-186
Abstract: Some miRNAs have multiple isoforms and several miRNAs* are present at higher levels than their corresponding miRNAs. Thirty three novel and 189 known chicken miRNAs were identified using computational approaches. Subsequent miRNA transcriptome comparisons and real-time PCR validation experiments revealed 17 miRNAs that were differentially expressed between broilers and layers, and a number of targets of these miRNAs have been implicated in myogenesis regulation. Using integrative miRNA target-prediction and network-analysis approaches an interaction network of differentially expressed and muscle-related miRNAs and their putative targets was constructed, and miRNAs that could contribute to the divergent muscle growth of broiler and layer chickens by targeting the ACVR2B gene were identified, which can causes dramatic increases in muscle mass.The present study provides the first transcriptome profiling-based evaluation of miRNA function during skeletal muscle development in chicken. Systematic predictions aided the identification of potential miRNAs and their targets, which could contribute to divergent muscle growth in broiler and layer chickens. Furthermore, these predictions generated information that can be utilized in further research investigating the involvement of interaction networks, containing miRNAs and their targets, in the regulation of muscle development.Embryonic patterning and organogenesis involve coordinated differentiation, migration, proliferation and programmed cell death in metazoans. These complex cellular and developmental processes rely on precise spatiotemporal networks that regulate transcription factors at multiple levels including mRNA transcription and translation, protein stability and degradation. Recently, evidence has demonstrated that microRNAs (miRNAs or miRs) are involved in diverse aspects of biology including developmental regulation and the pathogenesis of human diseases [1-4]. miRNAs are small 19-24 nucleotide (nt) regulatory
Effects of dissolved compounds on photodegradation of mefenacet in water

CHU Mingjie,YUE Yongde,HUA Rimao,TANG Feng,

应用生态学报 , 2006,
Abstract: The study with high-pressure mercury lamp illuminating showed that after illuminated for 15 min, NO2- and NO3- quenched the photolysis of mefenacet, and NO3- with a concentration ratio 10:1 (mass) had the most obvious effect, its quenching rate being up to 53.3%. Halogen ions inhibited the photolysis of mefenacet by "weight atom effect". When the concentration ratio of I- was 10:1, the quenching rate was 76.9% after illuminated for 15 min. Surfactants Nongru 500, Nongru 404, Nongru 601 and Nongru 603 had different effects on the photodegradation of mefenacet. At concentration ratios 1:5 and 1:1, only Nongru 404 showed a weak photosensitive effect, while in the other cases, all the four surfactants had photoquenching effects. Among the four herbicides benthiocarb, bensulfuron, alachlor and chlorsulfuron, only bensulfuron at low concentration ratio (1 : 10) accelerated the photolysis of mefenacet, with a photosensitive proportion of 18.2% after illuminated for 25 min. Aerified N2 could accelerate the photolysis of mefenacet, and the half-life was shortened from 7.14 min to 6.70 min without aerifying N2.
Studies on photodegradation of carbendazim in solvents and aqueous solutions

XU Baocai,YUE Yongde,HU Yinghui,HUA Rimao,

环境科学学报 , 2000,
Abstract: Under sunlight or high pressure mercury lamp(HPML),the phototransformation of carbendazim in solvents and aqueous solutions was studied.The main results were summarized as follows:Carbendazim decomposed very slowly in aqueous phase, n \|hexane and methanol under sunlight.The photolytic rate of MBC in acetone was high with half\|life of 33.80?h.Photosensitizer such as riboflavin,0 5% acetone and Fe 3 ,can enhance photolysis of MBC in aqueous solutions.Among them,riboflavin is the most senstivive one MBC can be degraded by 53 47% after 16 hours.Three pesticides,namely,triadimefon,butachlor,and carbofuran can affected significantly the photodecomposition of MBC in water under HPML.By 2 hours irradiation,the photoquench efficiency of triadimefon,butachlor and carbofuran on cabendazim are 244 05%,252 81%,and 262 92%,respectively.Under HPML,direct photolysis is the main process.The half\|life in redistilled water is 74 62?min.The photolytic rates of carbendazim in different water types or pH show following sequence:redistilled water>river water>pond water,or,pH4>pH9>pH7.
Studies on the photodegradation of Mefenacet in different water samples

CHU Mingjie,YUE Yongde,HUA Rimao,TANG Feng,

环境科学学报 , 2005,
Abstract: To study the effect of different waters on the photodegradation of Mefenacet, the photolysis of Mefenacet in pure water, natural water and buffer was studied. It indicated that in natural water samples, under the high-pressure mercury lamp(HPML) and xenon lamp(XL), the photo-half-lives of Mefenacet ranged samely as: paddy water > river water > lake water > river water(reservoir water) > redistilled water. The photo-half-lives under XL ranged from 607.80?min to (1016.40)?min, and under HPML ranged from 12.31?min to 18.53?min respectively. At room temperature, Mefenacet hydrolyzed easily in solution of pH=11.92. Under HPML, in buffers of pH=1.98 and 11.92, it photodegraded faster than in pure water, and the half-lives were 6.04?min(pH=1.98), 6.51?min(pH=11.92) and 6.75?min(redistilled water) respectively. Detecting the photoproducts by HPLC-MS indicated that a Metabolic pathway of mefenacet initiated by hydrolysis of amido groups and ether groups.
Uniqueness of Meromorphic Functions Concerning Differential Monomials  [PDF]
Hui Huang, Bin Huang
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.22025
Abstract: Considering the uniqueness of meromorphic functions concerning differential monomials ,we obtain that, if two non-constant meromorphic functions f(z) and g(z) satisfy ,where k and n are tow positive integers satisfying k ≥ 3 and n ≥ 11 , then either where c1, c2, c, are three constants, satisfying (c1 c2)n+1c>n+1=- 1 or f = tg for a constant t such that tn+1 = 1
Implementation of the Sino-Vietnamese Fishery Agreement: Mainly Chinese Perspective  [PDF]
Yao Huang, Mingming Huang
Beijing Law Review (BLR) , 2013, DOI: 10.4236/blr.2013.43014

The Beibu Gulf (Gulf of Tonkin) is one of the main fishing grounds for both China and Vietnam. The Sino-Vietnamese Agreement on Fishery Cooperation in the Beibu Gulf is an important legal instrument to effectively manage and conserve fishery resources in the Gulf. This article reviews the implementation of the Agreement, analyzes the main factors attribute to the smooth implementation, discusses the main problems arising from the implementation and further presents some proposals for improvement.

A Real-Time Transient Analysis of a Functionally Graded Material Plate Using Reduced-Basis Methods  [PDF]
Yonghui Huang, Yi Huang
Advances in Linear Algebra & Matrix Theory (ALAMT) , 2015, DOI: 10.4236/alamt.2015.53010
Abstract: Based on the hybrid numerical method (HNM) combining with a reduced-basis method (RBM), the real-time transient response of a functionally graded material (FGM) plates is obtained. The large eigenvalue problem in wavenumber domain has been solved through real-time off-line/on-line calculation. At off-line stage, a reduced-basis space is constructed in sample wavenumbers according to the solved eigenvalue problems. The matrices independent of parameters are projected onto the reduced-basis spaces. At on-line stage, the reduced eigenvalue problems of the arbitrary wavenumbers are built. Subsequently, the responses in wavenumber domain are obtained by the approximated eigen-pairs. Because of the application of RBM, the computational cost of transient displacement analysis of FGM plate is decreased significantly, while the accuracy of the solution and the physics of the structure are still retained. The efficiency and validity of the proposed method are demonstrated through a numerical example.
Adaptive Reduced Basis Methods Applied to Structural Dynamic Analysis  [PDF]
Yonghui Huang, Yi Huang
American Journal of Computational Mathematics (AJCM) , 2015, DOI: 10.4236/ajcm.2015.53029
Abstract: The reduced basis methods (RBM) have been demonstrated as a promising numerical technique for statics problems and are extended to structural dynamic problems in this paper. Direct step-by-step integration and mode superposition are the most widely used methods in the field of the finite element analysis of structural dynamic response and solid mechanics. Herein these two methods are both transformed into reduced forms according to the proposed reduced basis methods. To generate a reduced surrogate model with small size, a greedy algorithm is suggested to construct sample set and reduced basis space adaptively in a prescribed training parameter space. For mode superposition method, the reduced basis space comprises the truncated eigenvectors from generalized eigenvalue problem associated with selected sample parameters. The reduced generalized eigenvalue problem is obtained by the projection of original generalized eigenvalue problem onto the reduced basis space. In the situation of direct integration, the solutions of the original increment formulation corresponding to the sample set are extracted to construct the reduced basis space. The reduced increment formulation is formed by the same method as mode superposition method. Numerical example is given in Section 5 to validate the efficiency of the presented reduced basis methods for structural dynamic problems.
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