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Effects of Amino Acid Selenium Foliar Fertilizer on Selenium Content and Quality of Mango

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Agricultural Biotechnology 2020年第6期9卷 92-94页

作者： Mengling NONG Jinping CHEN Weicong Gan Liping PAN Ying XING Yongxian LIU College of Agriculture Guangxi UniversityNanning 530005China Agricultural Resources and Environment research Institute Guangxi Academy of Agricultural Sciences/Guangxi Selenium-rich Agricultural Products Engineering Technology Research CenterNanning 530007China Guangxi Selenium-rich Agricultural research Center Nanning 530007China Guangxi Plant Nutrition Engineering Technology research Center Nanning 530007China

[Objectives]This study was conducted to explore the treatment methods of amino acid selenium fertilizer suitable for increasing the selenium content of mangoes and improving the quality of mangoes,so as to provide a theoretical basis for the production of selenium-enriched mangoes.[Methods]With Tainong mango as a test material,the amino acid selenium foliar fertilizer was applied by eight treatment methods to investigate the changes of selenium,soluble solid,vitamin C,and titratable acid contents in mango flesh and peel.[Results]Spraying amino acid selenium foliar fertilizer increased the selenium content of mango *** selenium contents of the treatment groups T2,T3,T4 and T5 reached the selenium-enriched standard,and the T2 treatment group had the highest selenium content(0.020 mg/kg).The selenium contents in the peel of all treatment groups were greater than the corresponding selenium content in the *** for T1,the vitamin C contents of other treatment groups sprayed with amino acid selenium fertilizer increased compared with the control,and that of the T2 treatment group increased significantly(Pscientific basis for increasing the selenium content of mangoes and improving the current situation of insufficient selenium intake.

关键词： Selenium Mango Amino acid selenium foliar fertilizer

Nonreciprocal transition between two nondegenerate energy levels

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Photonics research 2021年第5期9卷 879-886页

作者： XUNWEI XU YANJUN ZHAO HUI WANG AIXI CHEN YU-XI LIU Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Key Laboratory for Matter Microstructure and Function of Hunan ProvinceDepartment of Physics and Synergetic Innovation Center for Quantum Effects and ApplicationsHunan Normal UniversityChangsha 410081China Department of applied Physics East China Jiaotong UniversityNanchang 330013China Key Laboratory of Opto-electronic Technology Ministry of EducationBeijing University of TechnologyBeijing 100124China Center for Emergent Matter Science(CEMS) RIKENWakoSaitama 351-0198Japan Department of Physics Zhejiang Sci-Tech UniversityHangzhou 310018China Institute of Microelectronics Tsinghua UniversityBeijing 100084China Frontier Science Center for Quantum Information Beijing 100084China

Stimulated emission and absorption are two fundamental processes of light–matter interaction, and the coefficients of the two processes should be equal. However, we will describe a generic method to realize the significant difference between the stimulated emission and absorption coefficients of two nondegenerate energy levels, which we refer to as a nonreciprocal transition. As a simple implementation, a cyclic three-level atom system, comprising two nondegenerate energy levels and one auxiliary energy level, is employed to show a nonreciprocal transition via a combination of synthetic magnetism and reservoir engineering. Moreover, a single-photon nonreciprocal transporter is proposed using two one-dimensional semi-infinite coupled-resonator waveguides connected by an atom with nonreciprocal transition effect. Our work opens up a route to design atom-mediated nonreciprocal devices in a wide range of physical systems.

关键词： transition. effect. reciprocal

Enhancement of critical-sized bone defect regeneration by magnesium oxide-reinforced 3D scaffold with improved osteogenic and angiogenic properties

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Journal of Materials Science & Technology 2023年第4期135卷 186-198页

作者： Bo Chen Zhengjie Lin Qimanguli Saiding Yongcan Huang Yi Sun Xinyun Zhai Ziyu Ning Hai Liang Wei Qiao Binsheng Yu Kelvin W.K.Yeung Jie Shen Department of Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China D Printing Clinical Translational and Regenerative Medicine Center Shenzhen Qianhai Shekou Free Trade Zone HospitalShenzhen 518067China Shenzhen Key Laboratory of Spine Surgery Department of Spine SurgeryPeking University Shenzhen HospitalShenzhen 518036China Department of Orthopaedics and Traumatology the University of Hong KongChina Hong Kong Special Administrative RegionChina Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma the University of Hong Kong Shenzhen HospitalShenzhen 518053China School of Materials Science and Engineering Nankai UniversityTianjin 300071China Department of Pathology Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhou 510080China Department of Stomatology Shenzhen Qianhai Shekou Free Trade Zone HospitalShenzhen 518067China applied Oral Sciences and Community Dental Care Faculty of Dentistrythe University of Hong KongChina Hong Kong Special Administrative RegionChina China Orthopaedic Regenerative Medicine Group(CORMed) Hangzhou 310000China

The healing of critical-sized bone defects(CSD)remains a challenge in orthopedic *** recent years,scaffolds with sophisticated microstructures fabricated by the emerging three-dimensional(3D)printing technology have lighted up the treatment of the CSD due to the elaborate microenvironments and support they may ***,we established a magnesium oxide-reinforced 3D-printed biocompos-ite scaffold to investigate the effect of magnesium-enriched 3D microenvironment on CSD *** composite was prepared using a biodegradable polymer matrix,polycaprolactone(PCL),and the disper-sion phase,magnesium oxide(MgO).With the appropriate surface treatment by saline coupling agent,the MgO dispersed homogeneously in the polymer matrix,leading to enhanced mechanical performance and steady release of magnesium ion(Mg^(2+))for superior cytocompatibility,higher cell viability,advanced osteogenic differentiation,and cell mineralization capabilities in comparison with the pure *** in-vivo femoral implantation and critical-sized cranial bone defect studies demonstrated the importance of the 3D magnesium microenvironment,as a scaffold that released appropriate Mg^(2+) exhibited remarkably increased bone volume,enhanced angiogenesis,and almost recovered CSD after 8-week ***,this study suggests that the magnesium-enriched 3D scaffold is a potential candidate for the treatment of CSD in a cell-free therapeutic approach.

关键词： 3D printing Magnesium Critical-sized defect Bone regeneration Angiogenesis Scaffold

Simulating the Impacts of the New-type Urbanization Policy on Rural Settlement Changes:A Case Study in Dingzhou,China

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Journal of Resources and Ecology 2022年第2期13卷 285-298页

作者： GUO Jie SONG Wei GUO Liyu ZHANG Yuling College of Geomatics Xi’an University of Science and TechnologyXi'an 710054China Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China Laoshan District Bureau of Agriculture and Rural Affairs of Qingdao City Shandong 266061 China

To cope with the difficulties of integrating migrant workers into urban life and inefficient land use caused by conventional urbanization,China has proposed a new type of urbanization *** policy may have a significant impact on the spatial patterns of rural settlements in *** this potential impact is conducive to the proposal of scientific plans for the spatial patterns of rural ***,this paper chooses Dingzhou,one of the pilot cities of this new-type urbanization,as the research area to carry out a simulation study on the impact of the new-type urbanization *** has invested heavily in the new-type urbanization construction in recent years,but the influence of the policy on rural settlements remains *** on the theoretical framework of previous studies,this paper set up three scenarios,namely“conventional urbanization”,“new-type urbanization”,and“counter-urbanization”.This paper used FLUS(Future Land Use Simulation)Model and various spatial data to simulate the spatial patterns of rural settlements in Dingzhou in 2030 under the different *** comparing the different scenarios,the impacts of the new-type urbanization policy on the spatial patterns of rural settlements in Dingzhou were *** results indicated that:(1)From 2000 to 2015,the area of rural settlements in Dingzhou increased by 11.12%.Spatially,the density of rural settlements around the cities and towns increased,and rural settlement areas were mainly converted from cultivated *** settlements were mainly transformed into urban land and cultivated land.(2)The overall simulation accuracy of FLUS was 0.89,so it can be well applied to the simulation of rural settlements.(3)In all three scenarios,rural settlements expanded along their edges,and the closer they were to towns,the more obvious the expansion *** the counter-urbanization scenario,the change of rural settlements was most dramatic.(4)The new-type urbanization policy ma

关键词： land use rural settlement new-type urbanization FLUS Dingzhou China

Analyses on Community Composition and Diversity of Endophytic Bacteria in Different Tissues of Anoectochilus roxburghii

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Agricultural Biotechnology 2016年第4期5卷 51-56页

作者： Zebin CHEN Xi GAO Dingkang WANG Guoxing WU Lei YU Jia'ni LIU Yongfu ZHANG Shengjing PENG Agriculture College Kunming UniversityKunming 650214China Urban Characteristic Agricultural Engineering Technology research Center of Yunnan Province Kunming 650214China College of Plant Protection Yunnan Agricultural UniversityKunming 650201China Department of Life Science and Technology Kunming UniversityKunming 650214China

[Objective] This study aimed to investigate the diversity of community composition and diversity of endophytic bacteria in Anoectochilus roxburghii.[Method] By using Illumina MiSeq high-throughput sequencing technology, the 16S rDNA-V4 region of endophytic bacteria in ^4. roxburghii was sequenced. Qiime and Mothur software packages were used to sort and count the number of sequences and operational taxonomic units （OTUs） and analyze the species abundance and distribution, Alpha diversity and differences of species abundance among samples. [Result] The number of effective sequences/OTUs for each sample was 110485/247 （stem） and 98524/259 （leaf） , respectively. The rarefaction curve showed that adequate sampling was performed. The number of OTUs had almost reached a saturation point. Endophytic bacteria in A. roxburghii mainly belonged to the genera Acidovorax, Pseudomonas, Sphingomonas and Halomonas. [Conclusions] Illumi-na MiSeq high-throughput sequencing technology provides more accurate and scientific data resources for the study of endophytic bacteria in A. roxburghii.

关键词： High-throughput sequencing Anoectochilus roxburghii-, Endophytic bacteria Diversity

Understanding and Study Perspectives on Tectonic Evolution and Crustal Structure of the Paleozoic Chinese Tianshan:Report on the International Excursion and Workshop,Urumqi,China

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Understanding and Study Perspectives on Tectonic Evolution a...

The origin of sulfuryl-containing components in SEI from sulfate additives for stable cycling of ultrathin lithium metal anodes

中国科学院地质与地球物理研究所第十届(2010年度)学术年会

作者： Jacques Charvet Michel Faure Boris Natal'in Alfred Kroner Brian Windley Richard Glen Reimar Seltmann Simon Wilde Flavien Choulet Cameron Quinn Yamirka Rojas-Agramonte Universite d’Orleans CNRS/INSUInstitut des Sciences de la Terre d’Orleans-UMR 6113 Campus Geosciences 1Arue de la Ferollerie45071 Orleans cedex 2France ITU Maden FakultesiJeoloji Muhendisligi BolumuGenel Jeoloji Anabilim DaliAyazaga34449lstanbulTurkey Institut fur Geowissenschaften Universitat Mainz55099 MainzGermany SHRIMP Centre CAGS26 Baiwanzhuang Road100037 BeijingChina University of Leicester United Kingdom Geological Survey of NSW NSW Department of Primary IndustriesAustralia Centre for Russian and Central EurAsian Mineral Studies(CERCAMS) Department of MineralogyNatural History MuseumCromwell RoadLondon SW7 5BDUK The Institute for Geoscience research Department of Applied GeologyCurtin University of TechnologyGPO Box U1987Perth 6845Australia

The Chinese Tianshan Belt is one of the key regions for the understanding of tectonics of the Central Asian Orogenic Belt(CAOB).An international field excursion and workshop were organized to conduct a common observation and discussion on the tectonic evolution of the Chinese *** report summarizes the main achievements,including acknowledged geological features,controversial and remaining scientific problems, and discussion of a tentative geodynamic ***, it is helpful to clarify what has been done in the past, what should be improved and what needs to be done in the future and therefore to better understand the tectonics of the Chinese Tianshan Belt and the CAOB as well.

关键词：

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Journal of Energy Chemistry 2020年第8期29卷 128-131,I0005页

作者： Jin-Xiu Chen Xue-Qiang Zhang Bo-Quan Li Xin-Meng Wang Peng Shi Wancheng Zhu Aibing Chen Zhehui Jin Rong Xiang Jia-Qi Huang Qiang Zhang Department of Chemical Engineering Qufu Normal UniversityQufu 273165ShandongChina Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical Engineering Tsinghua UniversityBeijing 100084China College of Chemical and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuang 050018HebeiChina School of Mining and Petroleum Engineering Department of Civil and Environmental EngineeringUniversity of AlbertaEdmontonAB T6G 1H9Canada Department of Mechanical Engineering The University of TokyoTokyo 113-8656Japan Advanced research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China

In the light of wireless and non-fossil society based on portable electronics, electric vehicles, and smart grids, secondary batteries with higher energy density, faster charge, and safer operation are pursued persistently [1]. Nowadays, commercial lithium(Li)-ion batteries have been practically applied in our daily life. However,the energy density of Li-ion batteries based on intercalation chemistry is approaching to the theoretical value due to the limited specific capacity of graphite anode(372 mA h g-1) [2].

关键词： Ultrathin lithium anodes Dendrites Electrolyte additives Solid electrolyte interphase Lithium batteries

Regulation of Root-Knot Nematode Behavior by Seed-Coat Mucilage-Derived Attractants

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Molecular Plant 2019年第1期12卷 99-112页

作者： Allen Yi-Lun Tsai Takumi Higaki Chinh-Nghia Nguyen Laetitia Perfus-Barbeoch Bruno Favery Shinichiro Sawa Graduate School of Science &Technology Kumamoto University2-39-1 KurokamiChuo-kuKumamoto 860-8555Japan Graduate School of Frontier Sciences The University of Tokyo5-1-5 KashiwanohaKashtwa-shiChiba 277-8562Japan INRA Universite Cote d'AzurCNRSUMR 1355-7254 Institut Sophia Agrobiotech06900 Sophia AntipolJsFrance present address:Internattonal research Organization for Advanced Science &Technology Kumamoto University2-39-1 KurokamiChuo-kuKumamoto 860-8555Japan Present address:School of Biotechnology and Food Technology Hanoi University of Science and Technology10 000 HanoiVietnam

Seed exudates influence the behavior of soil organisms,but howthis occurs remains unclear,particularly for multicellular *** we show that compounds associated with Arabidopsis seed-coat mucilage regulate the behavior of soil-borne animals,specifically root-knot nematodes (RKNs).Infective RKN J2 larvae actively travel toward Arabidopsis seeds through *** of Arabidopsis mucilage mutants demonstrated that the attraction of RKNs toArabidopsis seeds requires the synthesis and extrusion ***-coat *** mucilage alone is not sufficient to attract RKNs,but seed-surface carbohydrates and proteins are required for this *** findings suggest that the RKN chemoattractant is synthesized de novo upon mucilage extrusion but may be highly *** attracted by thismucilage-dependent mechanism can infect the emerging ***,the attraction signal from seedling roots likely acts independently of the seed-coat signal and may mask the attraction to seed-coat mucilage after *** RKN species are attracted byArabidopsis seeds,suggesting that this mechanism is conserved in *** findings indicate that seed exudate can regulate the behavior of multicellular animals and highlight the potential roles of seed-coat mucilage in biotic interactions with soil microorganisms.

关键词： chemotaxis seed-coat mucilage root-knot nematode plant-pathogen interaction

Synergistic effect of picosecond optical and nanosecond electrical pulses on dielectric breakdown in aqueous solutions

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Photonics research 2021年第3期9卷 416-423页

作者： Zachary N.Coker Xiao-Xuan Liang Allen S.Kiester Gary D.Noojin Joel N.Bixler Bennett L.Ibey Alfred Vogel Vladislav V.Yakovlev Department of Physics and Astronomy Texas A&M UniversityCollege StationTexas 77843USA SAIC Ft Sam HoustonTexas 78234USA Institut fur Biomedizinische Optik Universitat zu Lubeck23562 LubeckGermany Air Force research Laboratory JBSA Fort Sam HoustonTexas 78234USA Department of Biomedical Engineering Texas A&M UniversityCollege StationTexas 77843USA

The combined effect of short(picosecond) optical and(nanosecond) electrical pulses on dielectric breakdown is investigated both theoretically and experimentally. It was demonstrated that nanosecond electrical pulses(nsEPs),being applied simultaneously with picosecond optical pulses, reduce the threshold for optical *** results are discussed with respect to an extended model for opto-electrical-induced *** newly unveiled effect is expected to play a significant role in spatially confined electroporation and further advances in laser-ablation-based processes while also allowing for measurements of ambipolar diffusion constants.

关键词： breakdown optical picosecond