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Neural Regeneration Research 2025年第2期20卷 366-377页

作者： Samuel Abokyi Dennis yan-yin Tse School of Optometry The Hong Kong Polytechnic UniversityKowloonHong Kong Special Administrative RegionChina Research Center for SHARP Vision The Hong Kong Polytechnic UniversityKowloonHong Kong Special Administrative RegionChina Center for Eye and Vision Research Sha TinHong Kong Special Administrative RegionChina

Retinal aging has been recognized as a significant risk factor for various retinal disorders,including diabetic retinopathy,age-related macular degeneration,and glaucoma,following a growing understanding of the molecular underpinnings of their *** comprehensive review explores the mechanisms of retinal aging and investigates potential neuroprotective approaches,focusing on the activation of transcription factor *** meta-analyses have demonstrated promising outcomes of transcription factor EB-targeted strategies,such as exercise,calorie restriction,rapamycin,and metformin,in patients and animal models of these common retinal *** review critically assesses the role of transcription factor EB in retinal biology during aging,its neuroprotective effects,and its therapeutic potential for retinal *** impact of transcription factor EB on retinal aging is cell-specific,influencing metabolic reprogramming and energy homeostasis in retinal neurons through the regulation of mitochondrial quality control and nutrient-sensing *** vascular endothelial cells,transcription factor EB controls important processes,including endothelial cell proliferation,endothelial tube formation,and nitric oxide levels,thereby influencing the inner blood-retinal barrier,angiogenesis,and retinal ***,transcription factor EB affects vascular smooth muscle cells,inhibiting vascular calcification and *** retinal pigment epithelial cells,transcription factor EB modulates functions such as autophagy,lysosomal dynamics,and clearance of the aging pigment lipofuscin,thereby promoting photoreceptor survival and regulating vascular endothelial growth factor A expression involved in *** cell-specific functions of transcription factor EB significantly impact retinal aging mechanisms encompassing proteostasis,neuronal synapse plasticity,energy metabolism,microvasculature,and inflammation,ultimately offering pro

关键词： age-related macular degeneration anti-aging interventions autophagy calorie restriction diabetic retinopathy exercise glaucoma neuromodulation phagocytosis photoreceptor outer segment degradation retinal aging transcription factor EB

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Large eddy simulation of transient transport and entrapment of particle during slab continuous casting

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Journal of Iron and Steel Research International 2022年第2期29卷 247-262页

作者： yan-bin yin Jiong-ming Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing100083China

To investigate the transient transport and entrapment of argon bubbles and inclusions simultaneously during continuous casting,a 3D large eddy simulation model coupling molten steel flow,solidification and particle motion was *** this model,momentum transfer between molten steel and argon bubbles was performed by two-way *** predicted results indicate that argon bubble injection changed the flow pattern of molten steel and the inclusion motion in the liquid ***,the inclusion capture near the solidifying front was *** addition,measurements of bubbles and inclusions in the obtained samples were performed by methods of optical microscope examination and galvanostatic *** results show a favorable agreement between the model predictions and the measured results,which validate the mathematical ***,the predicted results of the inclusion entrapment in the case with argon bubble injection are more compatible with the measurements than those in the case without argon bubble injection.

关键词： Large eddy simulation Slab continuous casting Flow Solidification Argon bubble injection Particle motion Particle entrapment

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A Reverse Auction Framework for Hybrid Access in Femtocell Network

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Journal of Computer Science & Technology 2017年第6期32卷 1250-1264页

作者： yan-Jiao Chen Xiao-yan yin Jin Zhang State Key Laboratory of Software Engineering School of Computer Wuhan University Wuhan 430072 China School of Information Science and Technology Northwest University Xi'an 710127 China Department of Computer Science and Engineering Southern University of Science and Technology Shenzhen 518055 China

In the two-tier macro-femto heterogeneous network, hybrid access is regarded as the most ideal access con- trol approach to mitigating macro-femto cross-tier interference and enhancing overall network performance. However, the implementation of hybrid access is hindered by a lack of incentive market mechanism to motivate private femtocell owners to offer access permissions to macro users. In this paper, we propose a reverse auction framework for access permission transaction between a macrocell operator and multiple femtocell owners to promote hybrid access. Our goal is to maximize social welfare while guaranteeing the truthfulness of the auction. Since the coverage of multiple femtocells may overlap, we partition each cell to adjust the granularity of access permission availability. We first propose a Vickery-Clarke-Grove （VCG）-based mechanism, which costs the least among all auction mechanisms that produce maximum social welfare. As the VCG mechanism is too time-consuming, we propose two alternative truthful mechanisms, namely, generalized second- price and suboptimal mechanism. We further extend the auction framework to the scenario where femtocell owners have heterogeneous valuations for access permissions in different locations.

关键词： femtocell hybrid access reverse auction

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3-D Numerical Simulation on the Chip Machining Process of a Metal Block

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上海交通大学学报 2004年第Z2期38卷 108-113页

作者： yan Yixia yin Yihui Li Weifen Institute of Southwest Structural Mechanics Mianyang621900 China Institute of Southwest Structural Mechanics Mianyang621900 China Institute of Southwest Structural Mechanics Mianyang621900 China

In this paper, the cutting process of a metal block is numerically simulated by the dynamic explicit FE code ABAQUS. Taking thermo-mechanical coupling effect into consideration, the simulation presents the variation of temperature, stress and strain distribution in the workpiece and chip. The effective plastic strain failure criterion is applied to modeling the chip separation and plastic formation. And the phenomenon of the contact and friction between the workpiece and the cutting tool are described in the paper.

关键词： cutting 3-D FEM thermo-mechanical coupling

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Using the Inverse of Expected Error Variance to Determine Weights of Individual Ensemble Members： Application to Temperature Prediction

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Journal of Meteorological Research 2017年第3期31卷 502-513页

作者： Xiaogong SUN Jinfang yin yan ZHAO State Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences

The inverse of expected error variance is utilized to determine weights of individual ensemble members based on the THORPEX （The Observing System Research and Predictability Experiment） Interactive Grand Global Ensemble （TIGGE） forecast datasets. The weights of all ensemble members are thus calculated for summer 2012, with the NCEP final operational global analysis （FNL） data as the truth. Based on the weights of all ensemble members, the variable weighted ensemble mean （VWEM） of temperature of summer 2013 is derived and compared with that from the simple equally weighted ensemble mean. The results show that VWEM has lower root-mean-square error （RMSE） as well as absolute error, and has improved the temperature prediction accuracy. The improvements are quite notable over the Tibetan Plateau and its surrounding areas; specifically, a relative improvement rate of RMSE of more than 24% in 2-m temperature is demonstrated. Moreover, the improvement rates vary slightly with the pre- diction lead-time （24-96 h）. It is suggested that the VWEM approach be employed in operational ensemble predic- tion to provide guidance for weather forecasting and climate prediction.

关键词： ensemble forecast variable weighted ensemble mean simple equally weighted ensemble mean predic-tion accuracy

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Design and realization of phase retardation-control polarization controllers based on artificial birefringence

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The Journal of China Universities of Posts and Telecommunications 2011年第6期18卷 116-121页

作者： LIAO yan-na yin YA-fang School of Electronic Engineering Xi＇an University of Posts and Telecommunications Xi＇an 710121 China

Polarization controllers （PCs） are indispensable passive components for state of polarization （SOP） control in optical fiber communication systems. In order to overcome the disadvantages of existing polarization controller （PC）, a novel PC based on the artificial birefringence is designed in this paper. The PC results from the concatenation of 3 phase retardation control units each of which consists of two polarization beam splitters, two prisms and one piezoz-lectric transducer （PZT） piezoelectric ceramic. The experimental results show that the proposed PC can convert an arbitrary input SOP to any expected output one with high accuracy under low control voltage.

关键词： PC artificial birefringence piezoelectric ceramic component

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Development of water-soluble zein colloid particles and in situ antibacterial evaluation by multiple headspace extraction gas chromatography

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Food Science and Human Wellness 2021年第2期10卷 191-196页

作者： yan yin Fuzhen Zhou Yechong yin Yonghong Peng School of Life Science Huizhou UniversityHuizhou 516007China Research and Development Center of Food Proteins School of Food Science and EngineeringSouth China University of TechnologyGuangzhou 510640China School of Life Science South China Normal UniversityGuangzhou 510640China

In this work,water-soluble zein/sodium caseinate(SC)nanoparticles were prepared as a delivery system of antimicrobials through anti-solvent *** model antimicrobials(nisin and thymol)were coencapsulated into zein particles by different *** properties indicate that zein colloid particles can be used not only in neutral food but also in acidic *** is worth mention that the release of thymol was delayed simply by adding *** investigate the antimicrobial properties of zein/SC particles,Escherichia coli and Bacillus subtilis,Listeria monocytogenes were selected as gram-negative and gram-positive indicator ***2 produced by incubated germs was detected by headspace gas ***-term effective antimicrobial activities of zein particles in Luria broth was attained by burst release of nisin and slowly sustained release of *** antimicromibial properties against *** of thymol and nisin loaded by zein/SC particles in milk were also *** antimicrobial property of zein/SC particles could enhance microbial safety of food,giving this delivery system promising applications in food industry.

关键词： Zein/SC nanoparticles Antimicrobial Thymol Nisin Delivery system

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The Closed Orbits of a Class of Cubic Vector Fields in R^(3)

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Acta Mathematica Sinica,English Series 2020年第12期36卷 1429-1440页

作者： Hong yan yin Da ZHOU Xing An ZHANG School of Mathematics and Statistics Central China Normal UniversityWuhan 430079P.R.China School of Mathematics and Statistics South-Central University for NationalitiesWuhan 430074P.R.China School of Mathematical Sciences Xiamen UniversityXiamen 361005P.R.China

In this paper,we investigate the isolated closed orbits of two types of cubic vector fields in R^3 by using the idea of central projection transformation,which sets up a bridge connecting the vector field X(x)in R^3 with the planar vector *** have proved that the cubic vector field in R^3 can have two isolated closed orbits or one closed orbit on the invariant *** an application of this result,we have shown that a class of 3-dimensional cubic system has at least 10 isolated closed orbits located on 5 invariant cones,and another type of 3-dimensional cubic system has at least 26 isolated closed orbits located on 13 invariant cones or 26 invariant cones.

关键词： Closed orbit central projection transformation tangent vector field invariant cone

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Biological control of aflatoxin contamination of crops

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2008年第10期9卷 787-792页

作者： yan-ni yin Lei-yan yan Jin-hua JIANG Zhong-hua MA Institute of Biotechnology Zhejiang University Hangzhou 310029 China

Aflatoxins produced primarily by two closely related fungi, Aspergillus flavus and Aspergillus parasiticus, are mutagenic and carcinogenic in animals and humans. Of many approaches investigated to manage aflatoxin contamination, bio-logical control method has shown great promise. Numerous organisms, including bacteria, yeasts and nontoxigenic fungal strains of A. flavus and A. parasiticus, have been tested for their ability in controlling aflatoxin contamination. Great successes in reducing aflatoxin contamination have been achieved by application of nontoxigenic strains of A. flavus and A. parasiticus in fields of cotton, peanut, maize and pistachio. The nontoxigenic strains applied to soil occupy the same niches as the natural occurring toxigenic strains. They, therefore, are capable of competing and displacing toxigenic strains. In this paper, we review recent development in biological control of aflatoxin contamination.

关键词： Aflatoxin Aspergillus Biocontrol Food safety

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Weighted Nuclear Norm Minimization-Based Regularization Method for Image Restoration

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Communications on Applied Mathematics and Computation 2021年第3期3卷 371-389页

作者： Yu-Mei Huang Hui-yin yan Key Laboratory of Applied Mathematics and Complex Systems School of Mathematics and StatisticsLanzhou UniversityLanzhou730000China School of Mathematics and Statistics Xinyang Normal UniversityXinyang 464000Henan ProvinceChina

Regularization methods have been substantially applied in image restoration due to the ill-posedness of the image restoration *** assumptions or priors on images are applied in the construction of image regularization *** recent years,matrix low-rank approximation has been successfully introduced in the image denoising problem and significant denoising effects have been ***-rank matrix minimization is an NP-hard problem and it is often replaced with the matrix’s weighted nuclear norm minimization(WNNM).The assumption that an image contains an extensive amount of self-similarity is the basis for the construction of the matrix low-rank approximation-based image denoising *** this paper,we develop a model for image restoration using the sum of block matching matrices’weighted nuclear norm to be the regularization term in the cost *** alternating iterative algorithm is designed to solve the proposed model and the convergence analyses of the algorithm are also *** experiments show that the proposed method can recover the images much better than the existing regularization methods in terms of both recovered quantities and visual qualities.

关键词： Image restoration Regularization method Weighted nuclear norm Alternating iterative method

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