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Effect of the degree of milling on the microstructure and composition of japonica rice

Grain & Oil Science and Technology 2022年第4期5卷 194-203页

作者： jie Liu Yani Wu Huihui Chen Hongzhou An Yu Liu jie Xu College of Food Science and Engineering Henan University of TechnologyZhengzhou 450001China Henan International Joint Laboratory of Grain Quality Analyzing and Processing Zhengzhou 450001China COFCO Engineering&Technology(Zhengzhou)Co. Ltd.Zhengzhou 451150China Wilmar(Shanghai)Biotechnology Research&Development Center Co. Ltd.Shanghai 200137China

The effect of the degree of milling(DM)on the distribution of the residual bran layer on the surface of rice grains and subsequent rice quality is essential for rice milling *** study used scanning electron microscopy(SEM)and energy dispersive spectroscopy(EDS)to examine the microstructure of japonica rice grains,the microstructural changes in different bran portions after milling,and the content and distribution changes of the elements and nutrients in rice after milling to identify the components that can quantify bran residue according to *** SEM results revealed that the thickness of the bran layer and the depth of the grooves in different parts of a rice grain varied,while the depth of the grooves differed between *** DM was 12%,aleurone layer(Al)cells embedded in endosperm(En)remained in the dorsal *** was speculated that this was the reason why there was no significant difference in bran degree when the DM estimated via grain weight loss increased from 10%to 14%(P>0.05).The EDS elemental mapping image showed the qualitative distribution of the elements,which was condensed in the bran and uniform in the *** compositional changes revealed that milling caused the loss of rice nutrients,and the loss rate of DM at 0–10%was more serious than that of DM at 10%–14%.Higher DM(>10%)could remove marginal bran from the dorsal ***,the crude protein,ash,crude fat,dietary fiber,vitamin B1(VB1),and vitamin B2(VB2)content did not change significantly(P>0.05),while the magnesium(Mg),kalium(K),and phosphorus(P)levels decreased substantially(P<0.05).The microstructural and compositional changes indicated that the DM estimated via the grain weight loss increased from 2%to 10%,with the bran decreasing *** DM estimated via the grain weight loss increased from 10%to 14%,with minimal changes in the residual bran in the dorsal grooves of the rice grains,while the Mg,P,and K levels presented precise DM indices during the rice

关键词： Degree of milling Loss of grain weight Residual bran Residual constituents

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The plant circadian clock regulates autophagy rhythm through transcription factor LUX ARRHYTHMO

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Journal of Integrative Plant Biology 2022年第11期64卷 2135-2149页

作者： Ming-Kang Yang Xiao-jie Zhu Chu-Min Chen Xu Guo Shu-Xuan Xu Ya-Rou Xu Shen-Xiu Du shi Xiao Bernd Mueller-Roeber Wei Huang Liang Chen State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources College of Life SciencesSouth China Agricultural UniversityGuangzhou 510642China Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou 510642China Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms South China Agricultural UniversityGuangzhou 510642China State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources School of Life SciencesSun Yat‐Sen UniversityGuangzhou 510275China Department of Molecular Biology Institute of Biochemistry and BiologyUniversity of Potsdam14476 Potsdam‐GolmGermany Max Planck Institute of Molecular Plant Physiology 14476 Potsdam‐GolmGermany

Autophagy is an evolutionarily conserved degradation pathway in eukaryotes;it plays a critical role in nutritional stress *** circadian clock is an endogenous timekeeping system that generates biological rhythms to adapt to daily changes in the *** evidence indicates that the circadian clock and autophagy are intimately interwoven in ***,the role of the circadian clock in regulating autophagy has been poorly elucidated in ***,we show that autophagy exhibits a robust circadian rhythm in both light/dark cycle(LD)and in constant light(LL)in ***,autophagy rhythm showed a different pattem with a phase-advance shift and a lower amplitude in LL compared to ***,mutation of the transcription factor LUX ARRHYTHMO(LUX)removed autophagy rhythm in LL and led to an enhanced amplitude in *** represses expression of the core autophagy genes ATG2,ATG8 a,and ATG11 by directly binding to their *** analysis revealed that LUX is responsible for improved resistance of plants to carbon starvation,which is dependent on moderate autophagy *** transcriptomic analysis revealed that the autophagy rhythm is ubiquitous in *** together,our findings demonstrate that the LUXmediated circadian clock regulates plant autophagy rhythms.

关键词： autophagy carbon starvation circadian clock LUX rhythm

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An Efficient Cuckoo Search Algorithm for System-Level Fault Diagnosis

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Chinese Journal of Electronics 2016年第6期25卷 999-1004页

作者： XUAN Hengnong ZHANG Runchi shi Shengsheng School of Information Engineering Nanjing University of Finance and Economics Department of Computer Science and Technology Nanjing University

We propose a new efficient algorithm named Cuckoo search fault diagnosis(CSFD) to solve system-level fault diagnosis problem. KMP algorithm is proposed for initialization based on the K-means partition algorithm; a fitness function is designed according to the equation constraints satisfied by the test model; the binary mapping method is advanced by optimizing existing binary mapping algorithm. Experiments show that KMP algorithm significantly reduces the disparity between the initial solution and the actual solution, and CSFD algorithm improves the efficiency and correctness significantly compared with existing typical swarm intelligence diagnosis algorithm.

关键词： System-level fault diagnosis Equation model Cuckoo search K-means clustering Cuckoo search fault diagnosis algorithm(CSFD)

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Numerical failure analysis of a continuous reinforced concrete bridge under strong earthquakes using multi-scale models

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Earthquake Engineering and Engineering Vibration 2017年第2期16卷 397-413页

作者： Li Zhongxian Chen Yu shi Yundong Key Laboratory of Coast Civil Structure Safety of Ministry of Education Tianjin University Tianjin 300350 China

Previous failure analyses of bridges typically focus on substructure failure or superstructure failure separately. However, in an actual bridge, the seismic induced substructure failure and superstructure failure may influence each other. Moreover, previous studies typically use simplified models to analyze the bridge failure; however, there are inherent defects in the calculation accuracy compared with using a detailed three-dimensional （3D） finite element （FE） model. Conversely, a detailed 3D FE model requires more computational costs, and a proper erosion criterion of the 3D elements is necessary. In this paper, a multi-scale FE model, including a corresponding erosion criterion, is proposed and validated that can significantly reduce computational costs with high precision by modelling a pseudo-dynamic test of an reinforced concrete （RC） pier. Numerical simulations of the seismic failures of a continuous RC bridge based on the multi-scale FE modeling method using LS-DYNA are performed. The nonlinear properties of the bridge, various connection strengths and bidirectional excitations are considered. The numerical results demonstrate that the failure of the connections will induce large pounding responses of the girders. The nonlinear deformation of the piers will aggravate the pounding damages. Furthermore, bidirectional earthquakes will induce eccentric poundingsto the girders and different failure modes to the adjacent piers.

关键词： numerical simulation erosion criterion multi-scale finite element (FE) model failure mechanism failuremode

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Fluorinated 1,8-naphthalimides:Synthesis,solid structure and properties

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Chinese Chemical Letters 2014年第10期25卷 1399-1402页

作者： jie Huang Di Wu Hao-jie Ge Sheng-Hua Liu Jun Yin Key Laboratory of Pesticide and Chemical Biology Ministry of EducationCollege of ChemistryCentral China Normal University

Three fluorinated 1,8-napthalimides were synthesized from *** structures were characterized by NMR and EI-MS *** structures of compounds 1b and 1c were also confirmed by X-ray diffraction analysis,which showed that they possessed different packing *** optoelectronic properties were *** results indicated that all of the naphthalimides possess good solubility and low LUMO energy level,which make them good solution processing candidates in n-type semiconductor.

关键词： Napthalimide n-Type semiconductor Optoelectronic properties

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碳纤维/树脂基复合材料高速铣削的刀具磨损机理

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中国表面工程 2016年第5期29卷 138-145页

作者：林有希禹杰林华福州大学机械工程及自动化学院福州350108

采用涂层(Ti CN,Ti Al N)与无涂层超细晶粒硬质合金立铣刀对碳纤维/树脂基复合材料进行高速铣削试验,研究了刀具后刀面磨损带扩展及刀具磨损规律,并探讨了切削力、毛刺随着刀具磨损的变化趋势,观察了刀具的微观磨损形貌,分析了刀具的磨... 详细信息

采用涂层(Ti CN,Ti Al N)与无涂层超细晶粒硬质合金立铣刀对碳纤维/树脂基复合材料进行高速铣削试验,研究了刀具后刀面磨损带扩展及刀具磨损规律,并探讨了切削力、毛刺随着刀具磨损的变化趋势,观察了刀具的微观磨损形貌,分析了刀具的磨损机理。结果表明:在相同的切削条件下,无涂层刀具的后刀面磨损量及切削力最大,毛刺扩展严重,后刀面主要发生磨粒磨损,由于黏着磨损和氧化磨损对切削刃的弱化作用,主切削刃发生了微崩刃;Ti CN涂层刀具后刀面主要发生磨粒磨损,并伴随有黏着磨损和轻微的氧化磨损,失效形式为剥落和微崩刃;Ti Al N涂层刀具的后刀面磨损量及切削力最小,毛刺扩展缓慢,更适合碳纤维复合材料的加工。其后刀面主要发生了磨粒磨损,其失效形式为剥落。

关键词：碳纤维/树脂基复合材料高速铣削切削力磨损机理

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Achieving a more robust antiviral RNAi via subverting a viral virulence protein

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Molecular Plant 2022年第10期15卷 1514-1516页

作者： Liyuan you Ruize Zhang Zheng Qing Fu Center for Excellence in Molecular Plant Sciences Chinese Academy of ScienceShanghai 201602China Department of Biological Sciences University of South CarolinaColumbiaSC29208USA

As submicroscopic organisms with small genomes,viruses can only replicate inside living *** fact,viruses can infect all forms of life,from animals and plants to microorganisms including fungi,bacteria,and *** well-known human diseases such as human acquired immune deficiency syndrome,common cold,influenza,hepatitis,and coronavirus disease 2019,viral pathogens also cause more than$30 billion crop yield losses annually worldwide(Chauhan et al.,2019).

关键词： al. diseases annually

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Tuning infrared absorption in hyperbolic polaritons coated silk fibril composite

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Chinese Physics B 2022年第11期31卷 381-387页

作者： Lihong shi jiebin Peng School of Science JiangNan UniversityWuxi 214122China School of Physics and Optoelectronic Engineering Guangdong University of TechnologyGuangzhou 510006China

Advanced textiles for thermal management give rise to many functional applications and unveil a new frontier for the study of human thermal *** the coated quasi-particles between the composite components offers a platform to study the advanced thermoregulatory ***,we propose that coating the hyperbolic polariton can be an effective tool to tune infrared absorption in hexagonal boron nitride-coated silk ***,we achieve significant tuning of the infrared absorption efficiency of silk fibrils through the designed hexagonal boron nitride *** underlying mechanism is related to resonance coupling between hyperbolic phonon *** find a notably high infrared absorption efficiency,nearly 3 orders larger than that without hBN coating,which can be achieved in our composite *** results indicate the promising future of advanced polariton-coated textiles and open a pathway to guide the artificial-intelligence design of advanced functional textiles.

关键词： thermal radiation thermal management infrared absorption hyperbolic polaritons

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A Non-Marker Mutagenesis Strategy to Generate Poly-hrp Gene Mutants in the Rice Pathogen Xanthomonas oryzae pv. oryzicola

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Agricultural Sciences in China 2011年第8期10卷 1139-1150页

作者： ZOU Li-fang LI Yu-rong CHEN Gong-you School of Agriculture and Biology Shanghai Jiao Tong UniversityShanghai 200240P.R.China Key Laboratory of Monitoring and Management for Plant Diseases and Insects Ministry of Agriculture/Department of Plant PathologyNanjing Agricultural UniversityNanjing 210095P.R.China

Xanthomonas oryzae *** （Xoc）,the critical pathogen causing bacterial leaf streak in rice,possesses a hrp cluster that is responsible for triggering hypersensitive response （HR） in non-host tobacco and pathogenicity in host rice,and is considered to be one of the model pathogens in the rice model ***,we developed a high-throughput mutagenesis system using a two-step integration mediated by a novel suicide vector *** was used to generate single or poly-gene mutants of hpa1,hpa2,hrcV,hrpE,hpaB,and hrpF gene for functional *** total,five single,four double,and two triple hrp gene mutants were *** double and triple hrp gene deletion mutants triggered novel phenotypes in *** data suggest that pKMS1 is a useful tool for non-marker mutagenesis of multiple genes in Xoc.

关键词： Xanthomonas oryzae pv. oryzicola suicide vector knockout mutagenesis hrp gene

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Thickness modulation effect of CeO_2 layer for YBCO films grown by pulsed laser deposition

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Rare Metals 2018年第3期37卷 225-231页

作者： Xiang Wu Lin-Fei Liu Yan-jie Yao Meng-Lin Wang Bin-Bin Wang Yi-jie Li Department of Physics and Astronomy Shanghai Jiao Tong University

CeO2 film plays an essential role in nucleation and growth of YBa2 Cu3 O（7-x）（YBCO） films. In this work,the dependence of superconducting properties of YBCO on CeO2 films with different thicknesses was investigated,in order to achieve fabrication of high-performance YBCO coated conductors in industrial scale. The crystalline structure and morphology of CeO2 films with thickness ranging from 21 to 563 nm were systematically characterized by means of X-ray diffraction（XRD）, atomic force microscope（AFM） and reflection high-energy electron diffraction（RHEED）. Additional focus was addressed on evolution of the surface quality of CeO2 films with thickness increasing. The results show that at the optimal thickness of 221 nm, CeO2 film exhibits sharp in-plane and out-of-plane texture with full width of half maximum（FWHM） values of 5.9° and 1.8°, respectively, and smooth surface with a mean root-mean-square（RMS） roughness value as low as 0.6 nm. Combing RHEED and transmission electron microscope（TEM） cross-sectional analysis, it is found that nucleation and growth of CeO2 films at early stage remain in island growth mode with rougher surface,while further increasing the thickness beyond the optimal thickness leads to weak surface quality, consequently resulting in degradation of superconductor layers deposited subsequently. Eventually, a critical current density（Jc） as high as 4.6×10-6 A·cm-（-2）（77 K, self-field） is achieved on a YBCO film on a thickness-modulated CeO2/MgO/Y2 O3/Al2 O3/C276 architecture, demonstrating the advantages of CeO2 films as buffer layer in high-throughput manufacture of coated conductors.

关键词： CeO2 films Thickness modulation Pulsed laser deposition Surface quality

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