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Recommend trustworthy services using interval numbers of four parameters via cloud model for potential users

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Frontiers of Computer Science 2015年第6期9卷 887-903页

作者： hua ma Zhigang HU School of Software Central South University Changsha 410075 China School of Information Science and Engineering Hunan International Economics University Changsha 410205 China

How to discover the trustworthy services is a challenge for potential users because of the deficiency of us- age experiences and the information overload of QoE （qual- ity of experience） evaluations from consumers. Aiming to the limitations of traditional interval numbers in measuring the trustworthiness of service, this paper proposed a novel ser- vice recommendation approach using the interval numbers of four parameters （INF） for potential users. In this approach, a trustworthiness cloud model was established to identify the eigenvalue of INF via backward cloud generator, and a new formula of INF possibility degree based on geometrical anal- ysis was presented to ensure the high calculation precision. In order to select the highly valuable QoE evaluations, the similarity of client-side feature between potential user and consumers was calculated, and the multi-attributes trustwor- thiness values were aggregated into INF by the fuzzy ana- lytic hierarchy process method. On the basis of ranking INF, the sort values of trustworthiness of candidate services were obtained, and the trustworthy services were chosen to recommend to potential user. The experiments based on a real-world dataset showed that it can improve the recommendation accuracy of trustworthy services compared to other approaches, which contributes to solving cold start and information overload problem in service recommendation.

关键词： service recommendation trustworthiness interval numbers of four parameters cloud model potential users

On the convergence for PNQD sequences with general moment conditions

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Applied mathematics(A Journal of Chinese Universities) 2020年第2期35卷 184-192页

作者： XIAO juan QIU De-hua School of mathematics and Statistics Hengyang Normal UniversityHengyang 421008China School of Statistics and mathematics Guangdong University of Finance and EconomicsGuangzhou 510320China

Let fX;Xn;n≥1g be a sequence of identically distributed pairwise negative quadrant dependent(PNQD)random variables and fan;n1g be a sequence of positive constants with an=f(n)and f(θ^k)=f(θ^k-1)for all large positive integers k,where 10(x≥1)is a non-decreasing function on[b;+1)for some b≥1:In this paper,we obtain the strong law of large numbers and complete convergence for the sequence fX;Xn;n≥1g,which are equivalent to the general moment conditionΣ∞n=1P(|X|>an)<*** results extend and improve the related known works in Baum and Katz[1],Chen at al.[3],and Sung[14].

关键词： pairwise negative quadrant dependent(PNQD)random variable strong law of large numbers complete convergence general moment condition

Effect of Nitric Oxide on the Interaction Between Mitochondrial malate Dehydrogenase and Citrate Synthase

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Journal of Integrative Agriculture 2014年第12期13卷 2616-2624页

作者： LIU Yu-chen WANG juan SU Pei-ying ma Chun-mei ZHU Shu-hua College of Chemistry and material Science Shandong Agricultural University Department of Horticultural and Forest Engineer Heze University Tai’an Tumor Prevention and Treatment Hospital

Mitochondrial malate dehydrogenase （mMDH） and citrate synthase （CS） are sequential enzymes in Krebs cycle. mMDH, CS and the complex between mMDH and CS （mMDH＋CS） were treated with nitric oxide solution. The roles of notric oxide （NO） on the secondary structures and the interactions between mMDH and CS were studied using circular diehroism （CD） and Fourier transform surface plasmon resonance （FT-SPR）, respectivley. The effects of NO on the activities of mMDH, CS and mMDH＋CS were also studied. And the regulations by NO on mMDH and CS were simulated by PyMOL software. The results of SPR conifrmed that strong interaction between mMDH and CS existed and NO could signiifcantly regulate the interaction between the two enzymes. NO reduced the mass percents ofα-helix and increased that of random in mMDH, CS and mMDH＋CS. NO increased the activities of CS and mMDH＋CS, and inhibited the activity of mMDH. Graphic simulation indicated that covalent bond was formed between NO and Asn242 in active site of CS. However, there was no direct bond between NO and mMDH. The increase in activity of mMDH＋CS complex depended mostly on the interaction between NO and CS. All the results suggested that the regulations by NO on the activity and interaction between mMDH and CS were accord with the changes in mMDH, CS and mMDH＋CS caused by NO.

关键词： Krebs cycle nitric oxide surface plasmon resonance protein-protein interaction citrate synthase malate dehydrogenase

Advances in Uniform Polymer Microspheres and Microcapsules:Preparation and Biomedical Applications

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Chinese Journal of Chemistry 2020年第9期38卷 911-923页

作者： Guanghui ma hua Yue State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of ScienceBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

What is the most favorite and *** developed in your research group?We clarified the,mechanism for obtaining uniform microspheres and microcapsules in 0/W,W/0 and double emulsion systems,which enabled us to develop the technique to a universal technique,successfully,preparing various uniform particles including,hydrophobic,hydrophilic and composite functional particles,and leading to the original systematic studies on biomedical applications including"Synthetic Vaccine".

关键词： composite preparing favorite

Effect of nitrate supply on the facilitation between two salt-marsh plants (Suaeda salsa and Scirpus planiculmis)

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Journal of Plant Ecology 2020年第2期13卷 204-212页

作者： hua ma Li-juan Cui Xu Pan Wei Li Yu Ning Jian Zhou Institute of Wetland Research Chinese Academy of ForestryBeijing 100091China Beijing Key Laboratory of Wetland Services and Restoration Beijing 100091China Beijing Hanshiqiao National Wetland Ecosystem Research Station Beijing 101309China School of Nature Conservation Beijing Forestry UniversityBeijing 100083China

Aims In estuarine salt-marshes,nitrate supply and soil salinity,which are known as two main environmental drivers,simultaneously affect the interspecific interactions between plant ***,to date,their interactive effects on interspecific interactions have not been closely examined for salt-marsh plant *** Juvenile plants of Suaeda salsa L.(Chenopodiaceae)and Scirpus planiculmis Fr.(Cyperaceae)were grown in rinsed river sand to conduct a greenhouse experiment with three treatment categories:interspecific interaction(mixed culture or monoculture),three salinity levels(1,50 and 100 mmol L^(-1))and three nitrate levels(0.5,5 and 10 mmol L^(-1)).First,height and biomass of all plants were ***,the growth data,relative interaction index and competitive important index of the two species were *** Findings The interspecific interactions between *** and *** were facilitation across the salinity *** promotion of *** growth with high nitrate supply did not enhance the facilitative effect of the species,especially at low ***,high nitrate supply significantly shifted the interspecific interactions of *** from facilitation to competition at high *** results suggest that excessive nitrate application changes the prediction of the stress-gradient hypothesis along a salinity gradient,leading to collapse of the two species coexistence in the *** findings make a contribution to the understanding of how *** and ***,as well as salt-marsh communities,respond to the human modification of estuarine nutritional levels.

关键词： nitrate supply salinity gradient salt-marsh plants facilitation stress-gradient hypothesis

Evaluation of Ambient Light Display for High Information Capacity

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Journal of Beijing Institute of Technology 2018年第4期27卷 637-644页

作者： hua ma Suzhou Art and Design Technology Institute Suzhou 215000China

Ambient light display presents peripheral information unobtrusively,and it can be context aware and aesthetically enhance specific ***,since the abstract characteristic of light,people should attentively keep agood balance between unobtrusiveness and effectiveness,when designing an ambient light ***,in the condition of high information capacity,ambient light display need a mechanism to portray information *** this paper,a framework with an overlay mechanism is evaluated for high information *** on the framework,two ambient light displays are designed to support the evaluation *** evaluation questions are related with three aspects including information understanding,transition and encoding,special output *** the perception level,interpretation level and experience level,the process of evaluation is *** results indicate that the framework with the overlay mechanism can effectively support varied and specific communicating *** transitions and information encoding benefit from the proper mapping of states and notification levels in the framework.

关键词： evaluation ambient display light information capacity

Some selected topics on structural safety

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Acta Mechanica Sinica 2023年第4期39卷 1-2页

作者： juan ma Wei Gao Research Centre of Applied Mechanics School of Mechano-Electronic EngineeringXidian UniversityXi’an710071China Centre for Infrastructure Engineering and Safety(CIES) School of Civil and Environmental EngineeringThe University of New South WalesSydneyNSW2052Australia

Structural safety and reliability play an extremely important role in modern life and have been one of the hot research topics in the past *** to the complexity of the problem in nature,extensive studies on structural safety are still highly *** thematic issue of Acta Mechanica Sinica on structural safety contains nine papers addressing a wide variety of research areas ranging from the development of the fundamental numerical method for structural analysis to the reliability assessment of structures concerned by different disciplines.

关键词： structural concerned reliability

Control of stochastic spike motion in an excitable system via recycled noise

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Science China Chemistry 2011年第9期54卷 1504-1509页

作者： ma juan GAO QingYu College of Chemical Engineering China University of Mining and Technology Xuzhou 221008 China

The control effect of recycled noise,generated by the superposition of a primary Gaussian noise source and a secondary source with a constant delay,has been studied in an excitable FitzHugh-Nagumo *** mainly focus on the performance of noise-induced spike and coherence resonance in a parameter region sub-threshold to supercritical Hopf *** fixed noise intensity,simulations show that the coherence(quantitatively measured by R,which is defined as the mean value of the spike interval time T normalized to its mean square root) and the emission velocity of the noise-induced spikes exhibit damped oscillations with the variation of delay time,demonstrating a new kind of multi-resonance ***,the optimal delay times for resonance and the fast emission velocity are related to the inherent frequency of the *** seems that there are some synchronization effects between the dynamic character of the system and the delay time of recycled *** results give clear information about how one can control the coherence and emission velocity of the noise-induced spike in a rather effective way,by deliberately adjusting the delay time and the fraction of the secondary noise.

关键词： stochastic spike excitable recycled noise coherent resonance

New Active Organic Substance in Oyster Shell Capable of Scavenging Oxygen Free Radicals with High Efficiency

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Chemical Research in Chinese Universities 2008年第2期24卷 171-174页

作者： ma Jian-hua College of Biology Engineering Jimei University Xiamen 361021 P. R. China

A light purple organic active substance capable of scavenging hydroxyl radical（OH） with a high efficiency was extracted from Oyster shell at an extraction rate of 2.49%. It was found for the first time that this active substance may scavenge OH with the efficiency far higher than that of vitamin C. This active substance may scavenge also superoxide radical（O2） although the scavenging efficiency is far lower than that of vitamin C. Infrared spectrometry and routine chemical analysis primarily reveal that this active substance belongs to glycoprotein.

关键词： Oyster shell Glycoprotein Scavenging Hydroxyl radical Superoxide radical