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Proteomic Comparison Between Leaves from a Red-Flesh Mutant and Its Wild-Type in Sweet Orange

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Agricultural Sciences in China 2011年第8期10卷 1206-1212页

作者： PAN Zhi-yong deng Xiu-xin National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070P.R.China

The red-flesh mutant Hong Anliu sweet orange is of high nutritional value due to its lycopene *** previous studies on this mutant fruits suggested that photosynthesis and oxidative stress could promote the formation of mutation ***,leaf rather than fruit is the major part for some important biological processes such as *** this study,we analyzed the proteomic alteration in leaves of the red-flesh mutant Hong Anliu *** wild type （WT）.Ten differentially expressed proteins were identified,of which two were involved in photosynthesis,three in oxidative stress,two in defense,and three in *** high up-regulation of photosynthetic proteins proved the hypothesis that enhanced photosynthesis could provide and transport more substrates into mutant fruits for carotenoid *** to the previous results in fruits,anti-oxidative proteins were highly up-regulated in leaves,suggesting the whole plant of Hong Anliu suffered from enhanced oxidative *** involved in defense and metabolism were also identified,and their possible roles in the mutation were discussed.

关键词： sweet orange lycopene accumulation proteomic photosynthesis oxidative stress

Dynamic response of buildings under debris flow impact

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Journal of Mountain Science 2024年第5期21卷 1581-1597页

作者： LIU Huan FAN Xiaoyi TIAN Shujun deng xin School of Mechanical and Electrical Engineering Southwest Petroleum UniversityChengdu 610500China School of Civil Engineering and Geomatics Southwest Petroleum UniversityChengdu 610500China Housing and Urban-Rural Development Bureau of Mingshan District Ya’an 625100China Engineering Safety Assessment and Protection Research Southwest Petroleum UniversityChengdu 610500China School of Civil Engineering and Architecture Southwest University of Science and TechnologyMianyang 621010China

This study employs the smoothed particle hydrodynamics–finite element method(SPH–FEM) coupling numerical method to investigate the impact of debris flow on reinforced concrete(RC)-frame buildings. The methodology considers the variables of debris flow depth and velocity and introduces the intensity index IDV(IDV = DV) to evaluate three different levels of debris flow impact intensity. The primary focus of this study is to investigate the dynamic response and failure mechanism of RC-frame buildings under debris flow impact, including structural failure patterns, impact force and column displacement. The results show that under a highintensity impact, a gradual collapse process of the RCframe building can be observed, and the damage mode of the frame column reflects shear failure or plastic hinge failure mechanism. First, the longitudinal infill walls are damaged owing to their low out-of-plane flexural capacity;the critical failure intensity index IDV value is approximately 7.5 m2/s. The structure cannot withstand debris flows with an intensity index IDV greater than 16 m2/s, and it is recommended that the peak impact force should not exceed 2100 k N. The impact damage ability of debris flow on buildings mostly originates from the impact force of the frontal debris flow, with the impact force of the debris flow body being approximately 42% lower than that of the debris flow head. Finally, a five-level classification system for evaluating the damage status of buildings is proposed based on the numerical simulation and investigation results of the disaster site.

关键词： SPH–FEM method Debris flow Buildings The intensity index Dynamic response

Confidential Image Super-Resolution with Privacy Protection

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Chinese Journal of Electronics 2024年第6期33卷 1447-1457页

作者： Yiran HAN Jianwei LIU xin deng Junpeng JING Yanting ZHANG School of Cyber Science and Technology Beihang University Beihang University Hangzhou Innovation Institute China Electronics Standardization Institute

Nowadays, people are getting used to upload images to a third party for post-processing, such as image denoising and super-resolution. This may easily lead to the disclosure of the privacy in the confidential images. One possible solution is to encrypt the image before sending it to the third party, the encrypted image can be easily detected by a malicious attacker in the transmission channel. We propose a confidential image super-resolution method named HSR-Net which firstly hide the secret image and then super-resolve it in the hidden domain. The method is composed of three important modules: image hiding module(IHM), image super-resolution module(ISM), and image revealing module(IRM). The IHM aims to encode secret image and hide it into a cover image to generate the stego image. The stego image looks similar to the cover image but contains the information of the secret image. The third party uses the ISM to perform image super-resolution on the stego image. The user can reveal the super-resolved secret image from the stego image. The proposed HSR-Net method has two advantages. It ensures that the third party cannot directly operate on the secret image, thus protecting the user's privacy. Due to the similarity between the stego image and cover image, we can reduce the attacker's suspicion to further improve the image security. The experimental results were tested on DIV2K dataset and Flickr2K dataset. The peak signal-to-noise ratios(PSNR) of IHM, ISM, and IRM are 38.81 dB, 28.91 dB, and 23.51 dB, respectively, which verify that the proposed HSR-Net method is able to achieve image super-resolution and protect user's privacy simultaneouly.

关键词： Privacy Data privacy PSNR Superresolution Cryptography Protection Signal resolution Image denoising

Multi-class classification method for steel surface defects with feature noise

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Journal of Iron and Steel Research International 2021年第3期28卷 303-315页

作者： Mao-xiang Chu Yao Feng Yong-hui Yang xin deng School of Electronic and Information Engineering University of Science and Technology LiaoningAnshan114051LiaoningChina

Defect classification is the key task of a steel surface defect detection *** current defect classification algorithms have not taken the feature noise into *** order to reduce the adverse impact of feature noise,an anti-noise multi-class classification method was proposed for steel surface *** the one hand,a novel anti-noise support vector hyper-spheres(ASVHs)classifier was *** N types of defects,the ASVHs classifier built N *** hyper-spheres were insensitive to feature and label *** the other hand,in order to reduce the costs of online time and storage space,the defect samples were pruned by support vector data description with parameter iteration adjustment *** the end,the ASVHs classifier was built with sparse defect samples set and auxiliary *** results show that the novel multi-class classification method has high efficiency and accuracy for corrupted defect samples in steel surface.

关键词： Steel surface defect Multi-class classification Anti-noise support vector hyper-sphere Parameter iteration adjustment Feature noise

Organotellurium-catalyzed oxidative deoximation reactions using visible-light as the precise driving energy

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Chinese Chemical Letters 2021年第3期32卷 1029-1032页

作者： xin deng Rongrong Qian Hongwei Zhou Lei Yu School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China College of Biological Chemical Sciences and EngineeringJiaxing UniversityJiaxing 314001China Jiangsu College of Tourism Yangzhou 225127China

Irradiated by visible light,the recyclable(PhTe)2-catalyzed oxidative deoximation reaction could occur under mild *** comparison with the thermo reaction,the method employed reduced catalyst loading(1 mol%vs.2.5 mol%),but afforded elevated product yields with expanded substrate *** work demonstrated that for the organotellurium-catalyzed reactions,visible light might be an even mo re precise driving energy than heating because it could break the Te—Te bond accurately to generate the active free radical catalytic intermediates without damaging the fragile substituents(e.g.,heterocycles)of *** use of O_(2) instead of explosive H_(2)O_(2) as oxidant affords safer reaction conditions from the large-scale application viewpoint.

关键词： Photocatalysis Tellurium Deoximation Sustainable energy Ketone

Differential Evolution Based High-order Peak Filter Design with Application to Compensation of Contact-induced Vibration in HDD Servo Systems

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International Journal of Automation and computing 2017年第1期14卷 45-56页

作者： Deqing Huang Jian-xin Xu xin deng Venkatakrishnan Venkataramanan The Cat Tuong Huynh Institute of Systems Science and Technology School of Electrical Engineering Southwest Jiaotong University Department of Electrical and Computer Engineering National University of Singapore Chongqing Key Laboratory of Computational Intelligence Chongqing University of Posts and Telecommunications Data Storage Institute Agency for Science Technology and Research

Sensitivity loop shaping using add-on peak filters is a simple and effective method to reject narrow-band disturbances in hard disk drive （HDD） servo systems. The parallel peak filter is introduced to provide high-gain magnitude in the concerned frequency range of open-loop transfer function. Different from almost all the known peak filters that possess second-order structures, we explore in this paper bow high-order peak filters can be designed to improve the loop shaping performance. The main idea is to replace some of the constant coefficients of common second-order peak filter by frequency-related transfer functions, and then differential evolution （DE） algorithm is adopted to perform optimal design. We creatively introduce chromosome coding and fitness function design, which are original and the key steps that lead to the success of DE applications in control system design. In other words, DE is modified to achieve a novel design for hard disk drive control. Owing to the remarkable searching ability of DE, the expected shape of sensitivity function can be achieved by incorporating the resultant high-order peak filter in parallel with baseline feedback controller. As a result, a seventh-order peak filter is designed to compensate for contact-induced vibration in a high-density HDD servo system, where the benefits of high-order filter are clearly demonstrated.

关键词： Differential evolution (DE) contact-induced vibration peak filter optimization sensitivity loop shaping hard disk drive(HDD).

Calcium-catalyzed reactions of element-H bonds

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Science Bulletin 2018年第15期63卷 1010-1016页

作者： Lei Yu Rongrong Qian xin deng Fang Wang Qing Xu School of Chemistry and Chemical Engineering Yangzhou University Yangzhou 225002 China Jiangsu College of Tourism Yangzhou 22S127 China Yangzhou Polytechnology Institute Yangzhou 225127 China

Investigation on organocalcium catalysis is just unfolding during the past decade. Beside conventional Ca salts with strong electron-withdrawing counter anions that may serve as Lewis acid catalysts, many Ca complexes have also been designed recently and found to be good catalysts in activation of element-H （E-H） bonds like transition metal catalysts. These findings are interesting and may attract the interest of the chemists. Due to the great abundance, non-toxicity, and biocompatible features of Ca element, Ca-catalyzed reactions can be of great significance from the viewpoint of industry. This short review summarizes the recent advances on Ca-catalyzed reactions of E-H bonds. We hope that it may provide a useful guide for interested readers from both the academy and industry.

关键词： Calcium Organic reaction Green chemistry Addition Hydrofunctionalization

Zeolite-encaged gold catalysts for the oxidative condensation of furfural

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Frontiers of Chemical Science and Engineering 2024年第8期18卷 67-77页

作者： Weijie Li Mingyang Gao Bin Qin xin deng Landong Li School of Materials Science and Engineering Nankai UniversityTianjin 300350China College of Chemistry Nankai UniversityTianjin 300071China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

The oxidative condensation between renewable furfural and fatty alcohols is a crucial avenue for producing high-quality liquid fuels and valuable furan *** selectivity control in this reaction process remains a significant ***,we report the strategy of confining well dispersed gold species within ZSM-5 structure to construct highly active Au@ZSM-5 zeolite catalysts for the oxidative condensation of *** results and spectroscopy analyses demonstrate the efficient encapsulation of isolated and cationic Au clusters in zeolite ***@ZSM-5(K)catalyst shows remarkable performance with 69.7%furfural conversion and 90.2%furan-2-acrolein selectivity as well as good recycle *** is revealed that the microstructure of ZSM-5 zeolite can significantly promote oxidative condensation activity through confinement *** work presents an explicit example of constructing zeolite encaged noble metal catalysts toward targeted chemical transformations.

关键词： zeolite encapsulation gold oxidative condensation furfural

Dandelion polyphenols protect against acetaminophen-induced hepatotoxicity in mice via activation of the Nrf-2/HO-1 pathway and inhibition of the JNK signaling pathway

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Chinese Journal of Natural Medicines 2020年第2期18卷 103-113页

作者： REN Yong-Shen ZHENG Yao DUAN Huan LEI Lei deng xin LIU xin-Qiao MEI Zhi-Nan deng Xu-Kun School of Pharmaceutical Sciences South-Central University for NationalitiesWuhan 430074China

We investigated the liver protective activity of dandelion polyphenols(DP)against acetaminophen(APAP;Paracetamol)-induced *** were acclimated for 1 week and randomly divided into the following groups(n=9 per group):Control,APAP,APAP+DP(100 mg·kg^–1),APAP+DP(200 mg·kg^–1),and APAP+DP(400 mg·kg^–1)*** were pretreated with DP(100,200,and 400 mg·kg^–1)by oral gavage for 7 d before being treated with 350 mg·kg^–1 APAP for 24 h to induced *** liver injury was observed,and hepatotoxicity was analyzed after 24 h by evaluation of biochemical markers,protein expressions levels,and liver *** with DP was able to restore serum liver characteristics(aspartate transaminase,AST;alanine aminotransferase,ALT;alkaline phosphatase,AKP),improve redox imbalance(superoxide dismutase,SOD;glutathione,GSH;malondialdehyde,MDA),and decrease inflammatory factors(tumor necrosis factor-α,TNF-α;interleukin-1β,IL-1β).Pretreatment with DP also significantly inhibited the expression levels of nitric oxide synthase(iNOS)and cyclooxygenase-2(COX-2).Furthermore,DP pretreatment could inhibit the apoptosis of liver cells caused by APAP through up-regulation of Bcl-2 and down-regulation of Bax and caspase-9 *** also down-regulated p-JNK protein expression levels to inhibit APAP-induced mitochondrial oxidative stress and up-regulated the expression of Nrf-2 and its target gene *** histopathological staining demonstrated that DP pretreatment could inhibit APAP-induced hepatocyte infiltration,congestion,and *** results demonstrate that DP pretreatment could protect against APAP-induced hepatic injury by activating the Nrf-2/HO-1 pathway and inhibition of the intrinsic apoptosis pathway.

关键词： Dandelion polyphenols APAP-induced liver injury Oxidative stress Anti-inflammation Anti-apoptosis JNK pathways Nrf-2/HO-1 pathways