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Multifunctional SiC@SiO_(2) Nanofiber Aerogel with Ultrabroadband Electromagnetic Wave Absorption

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Nano-Micro Letters 2022年第9期14卷 237-256页

作者： limeng Song Fan Zhang Yongqiang Chen li guan Yanqiu Zhu Mao Chen Hailong Wang Budi Riza Putra Rui Zhang Bingbing Fan School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanPeople’s Republic of China School of Materials Science and Engineering Zhengzhou University of AeronauticsZhengzhou 450015HenanPeople’s Republic of China College of Engineering Mathematics and Physical SciencesUniversity of ExeterExeter EX44SBUK Research Center for Metallurgy National Research and Innovation AgencySouth Tangerang 15315BantenIndonesia State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100ShandongPeople’s Republic of China School of Materials Science and Engineering Luoyang Institute of Science and TechnologyLuoyang 471023HenanPeople’s Republic of China

Traditional ceramic materials are generally brittle and not flexible with high production costs,which seriously hinders their practical *** nanofiber ceramic aerogels are highly desirable for applications in extreme environments,however,the integration of multiple functions in their preparation is extremely *** tackle these challenges,we fabricated a multifunctional SiC@SiO_(2) nanofiber aerogel(SiC@SiO_(2) NFA)with a threedimensional(3D)porous cross-linked structure through a simple chemical vapor deposition method and subsequent heat-treatment *** as-prepared SiC@SiO_(2) NFA exhibits an ultralow density(~11 mg cm^(-3)),ultra-elastic,fatigue-resistant and refractory performance,high temperature thermal stability,thermal insulation properties,and significant strain-dependent piezoresistive sensing ***,the SiC@SiO_(2) NFA shows a superior electromagnetic wave absorption performance with a minimum refection loss(RL_(min))value of-50.36 d B and a maximum effective absorption bandwidth(EAB_(max))of 8.6 *** successful preparation of this multifunctional aerogel material provides a promising prospect for the design and fabrication of the cutting-edge ceramic materials.

关键词： Multifunctional SiC@SiO_(2)nanofiber aerogel Chemical vapor deposition Electromagnetic wave absorption Ceramic materials

Domain Reversal Characteristics of Near-Stoichiometric liNbO3 Crystals

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Chinese Physics Letters 2000年第7期17卷 513-514页

作者： Yao Jiang-Hong XU Jing-Jun ZHANG guang-Yin CHEN Xiao-Jun li Bing li guan-Gao Photonics Research Center College of Physics ScienceNankai UniversityTianjin 300071 Department of Physics College of Physics ScienceNankai UniversityTianjin 300071 National Laboratory for Infrared Physics Chinese Academy of SciencesShanghai 200083

The domain reversal characteristics of near-stoichiometric liNbO3 ([li]/[li+Nb]=0.496) single crystals, which are grown by the Czochralski method with K2O tlux, are investigated. The switch tield for 180° ferroelectric domain reversal in the near-stoichiometric liNbO3 crystal is 8.0±0.5kV/mm, which is only one third of the switching field required for the congruent liNbO3 crystals. We have successfully achieved 180° domain reversal in near-stoichiometric liNbO3 samples of 1.0mm thickness.

关键词： liNbO3 Crystal ferroelectric

Natural Compound Curcumin—a Channel Potentiator Rather Than a Corrector of the Defective Intracellular Processing of △F508 Mutant Cystic Fibrosis Transmembrane Conductance Regulator

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Chemical Research in Chinese Universities 2008年第2期24卷 200-203页

作者： liU Xin guan li HE Cheng-yan ZHANG Xiao-jing XU li-na SHANG De-jing MA Tong-hui YANG Hong Membrane Channel Research Laboratory Northeast Normal University Changchun 130024 P. R. China China-Japan Union Hospital Jilin University Changchun 130033 P. R. China liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery Liaoning Normal University Dalian 116029 P. R. China

Cystic fibrosis（CF） is a severe genetic disease caused by the gene mutation of the cystic fibrosis transmembrane conductance regulator（CFTR） chloride channel. The most common point mutation AF508, which leads to impaired intracellular processing and channel gating of CFTR, appears in about 90% CF patients. The natural compound curcumin was reported to correct the processing defect of AF508-CFTR and proposed as a potential therapeutic drug to cure CF. In the present study, we analyzed the effect of curcumin on AF508-CFTR and demonstrated that curcumin can restore the impaired chloride conductance of AF508 mutant CFTR. The activity is rapid, reversible and cAMP-dependent. However, we couldn＇t reproduce the previously reported correction of the defective membrane trafficking of AF508-CFTR by curcumin. Therefore, curcumin may not be a superior lead compound for developing anti-CF drugs.

关键词： Cystic tibrosis CFTR Mutation Natural compound Drug discovery

Discovery and study of cutaneous leishmaniasis in Karamay of Xinjiang, West China

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Infectious Diseases of Poverty 2013年第1期2卷 160-165页

作者： li-Ren guan Yuan-Qing Yang Jing-Qi Qu Hao-Yuan Ren Jun-Jie Chai National Institute of Parasitic Diseases Chinese Center for Disease Control and PreventionShanghai 200025PR China General Hospital of Xinjiang Petroleum Bureau Karamay 834000PR China Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region Urumqi 830002PR China

Cutaneous leishmaniasis(CL)was discovered in the farms of the Karamay suburb,Xinjiang Uygur Autonomous Region in the *** 1992 and 1994,a house-to-house survey revealed a prevalence of 1.0-1.6%in the *** clinical types of skin lesions included papule,plaque,ulcer and nodular *** verified that,in some cases,the skin lesions healed spontaneously in 10–14 months,whilst in other cases,they persisted for several *** cases of CL have continued to appear at the dermatology clinic of the local hospital since *** wui(***),subgenus Larroussius was confirmed as the transmitting *** causative agent is Leishmania infantum sensu lato.

关键词： leishmaniasis Xinjiang clinical

Use of slgE/T-IgE in Predicting Systemic Reactions： Retrospective Analysis of 54 Honeybee Venom Allergy Cases in North China

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Chinese Medical Journal 2016年第17期129卷 2091-2095页

作者： Kai guan li-Sha li Jia Yin Department of Allergy Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College. Beijing 100730 China

Background： Venom allergy is significantly underestimated in China. Venom-specific IgE may not provide accurate clinical reactions. Our conducted retrospective analysis observes alternative diagnostic considerations in assessing confirmation and severity of honeybee veuom allergy, Methods： Retrospective review of honeybee venom allergy versus nonallergy patients presenled v,ith positive honeybee venom （iI） sIgE results. According to clinically observed reactions caused by a honeybee sting, patients were divided into three groups. Patient residence and exposure types were analyzed. The slgE/T-IgE among allergy and control groups was compared, Results： Gender ratio male：female was 32：22： median age was 39 years （31. 50）. 48% （26/54） of patients live in urban areas. 52% （28/54） in rural areas. Based on bee sting reactions, patients were divided into common localized reactions （32/54）. large localized reactions （7/54）, and systemic reactions （15/54）, In the systemic reaction group, patients presented as Type Ⅱ （6/15）, Type Ⅲ （6/15）. There is significant difference （P 〈 0,001 ） between the three groups in regards to exposure types. In the systemic reaction group. 8.7% （13/15） of patients are beekeepers. A significant difference （P 〈 0.001 ） was observed between allergic and control groups based on slgE/T-lgE results. As well as significant difference observed between the systemic reaction group to the other two reaction groups in regards to slgE/T-IgE results. Six systemic reaction patients presented with large localized reactions before onset of system symptoms 1 month to 1year of being stung. Conclusions： Occupational exposure is the most common cause in honeybee venom allergy induced systemic reactions. The use of sIgE/T-IgE results is a useful diagnostic parameter in determining honeybee venom allergy,

关键词： Honeybee Venom Allergy Localized Reaction: Systemic Reaclion

Development of peanut varieties with high oil content by in vitro mutagenesis and screening

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Journal of Integrative Agriculture 2020年第12期19卷 2974-2982页

作者： WANG Jing-shan SHI Lei liU Yue ZHAO Ming-xia WANG Xia QIAO li-xian SUI Jiong-ming li guan ZHU Hong YU Shan-lin College of Agronomy Qingdao Agricultural University/Shandong Provincial Key Laboratory of Dryland Farming TechnologyQingdao 266109P.R.China Haidu College Qingdao Agricultural UniversityLaiyang 265200P.R.China College of Horticulture Qingdao Agricultural UniversityQingdao 266109P.R.China

Peanut (Arachis hypogaea L.) is an important oil crop globally and high oil content is one of the major targets in peanut breeding programs. Previous studies indicated that the osmotic pressure (OP) of the leaves of peanut plants subjected to drought stress was negatively correlated with kernel oil content. Based on this knowledge, we established a practical and reliable method for creating new peanut varieties with high oil content using in vitro mutagenesis and directional OP-based selection. Using embryonic leaflets of peanut variety Huayu 20 as explants, pingyangmycin (PYM) as the mutagen, and hydroxyproline (HYP) as the OP regulator, we developed 15 HYP-tolerant regenerated plants. For each regenerated plant, we selected offspring with oil content>55% (relative to 49.5% for Huayu 20). We developed and released three new peanut varieties with high yield and high oil content from the offspring of the HYP-tolerant regenerated plants. The three new varieties were named as Yuhua 4, Yuhua 9 and Yuhua 14 and their oil contents were 57.7, 61.1 and 59.3%, respectively. The results indicate that in vitro mutagenesis with PYM followed by directed screening with HYP is a useful approach for breeding peanut varieties with high oil contents.

关键词： Arachis hypogaea in vitro mutagenesis HYP-directed selection high oil variety

Domestic Tourism Development Planning Research Review

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International Journal of Technology Management 2014年第7期 92-94页

作者： li guan School of Tourism and Geographical Science Yunnan Normal University Kunming Yunnan 650500

The domestic tourism development planning began in 1985. According to the research achievement distribution situation, tourism development planning research can be divided into initial stage（ 1985-1998）, development stage（1999-2004） and prosperous stage（2005 till now）. The research achievement has the features of earlier academic research start, slow quantity increase, rapid growth of newspaper quantity, wide distribution of region, research achievement total increase speed slower than social scientific research achievement quantity growth. The research has three aspects of problems： one is insufficient academic research system; two is report lacks of depth, continuity and unity; three is research achievement has overall decreasing trend. The domestic tourism development planning should strengthen the theoretical research, combine with theory and practice; strengthen thematic reports, mining depth information, and give full play to supervision function.

关键词： Domestic Tourism development planning Review

Sn nanoparticles embedded into porous hydrogel-derived pyrolytic carbon as composite anode materials for lithium-ion batteries

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Rare Metals 2022年第10期41卷 3421-3431页

作者： guan-li Xu Yu-Dong Gong Chang Miao Qing Wang Shu-Qing Nie Yu Xin Min-Yue Wen Jian liu Wei Xiao College of Chemistry and Environmental Engineering Yangtze UniversityJingzhou434023China Hebei Key Laboratory of Dielectric and Electrolyte Functional Material Northeastern University at QinhuangdaoQinhuangdao066004China Peking University Science Park Beijing100871China School of Engineering Faculty of Applied ScienceThe University of British ColumbiaKelownaBCV1V 1V7Canada

The composite powders,Sn nanoparticles embedded into the porous hydrogel-derived carbon(Sn@PHDC),were successfully prepared by polymerization and calcination processes,and the characterization results confirmed that Sn nanoparticles were homogeneously dispersed in the porous hydrogel-derived pyrolytic *** coin cell assembled with the Sn@PHDC-50 composite electrode presented good cyclic stability and rate performance when the weight ratio of Sn nanoparticles to hydrogel-derived pyrolytic carbon was maintained at 1:***,the Sn@PHDC-50 electrode manifested a lower charge transfer resistance of 58.57 Ω and a higher lithium ions diffusion coefficient of 1.117×10^(-14) cm^(2)·s^(-1) than pure Sn and other Sn@PHDC *** improvements can be partly ascribed to the fact that the hydrogelderived pyrolytic c arbon matrix can release the volume strain and enhance the electronic conductivity of the composite electrode,and partly to the fact that the porous hydrogelderived pyrolytic carbon matrix can suppress agglomerations of Sn nanoparticles and shorten li^(+) diffusion *** work may provide a new appro ach for the improvement of Sn-based anode materials for lithium-ion batteries.

关键词： Sn nanoparticles Hydrogel Composite anode Electrochemical performance lithium-ion battery

RNA-Seq analysis and development of SSR and KASP markers in lentil(Lens culinaris Medikus subsp. culinaris)

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The Crop Journal 2020年第6期8卷 953-965页

作者： Dong Wang Tao Yang Rong liu Nana li Xiaomu Wang Ashutosh Sarker Xiaodong Zhang Runfang li Yanyan Pu guan li Yuning Huang Yishan Ji Zhaojun li Qian Tian Xuxiao Zong Hanfeng Ding Shandong Center of Crop Germplasm Resources Shandong Research Station of Crop Gene Resource&Germplasm EnhancementMinistry of AgricultureShandong Provincial Key Laboratory of Crop Genetic ImprovementEcology and PhysiologyJinan 250100ShandongChina National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China College of life Science Shandong Normal UniversityJinan 250014ShandongChina International Center for Agricultural Research in the Dry Areas(ICARDA) New Delhi 110012India

Lentil(Lens culinaris Medikus ***,2 n=14)is a cool-season legume with high production potential for multiple ***,limited molecular research has been conducted in this species owing to its large genome,which impedes the generation of genome sequences and the development of molecular *** this study,more than 1.37 billion filtered clean reads were collected by RNA-Seq of six diverse lentil accessions and217,836 transcripts and 161,095 unigenes were de novo assembled,yielding respectively 257.1 and 240.6 million *** mean transcript length was 1180 bp and the N50 and N90 lengths were respectively 2075 and 479 *** mean length of the unigenes was 1494 bp and their N50 and N90 values were respectively 2203 and 714 *** unigenes were annotated against seven *** FLOWERING LOCUS T(FT)gene homolog in lentil showed high protein sequence similarity to the FT gene homologs of pea and *** the basis of the RNA-Seq analysis,26,449 EST-SSR markers were designed in silico,and 276 preliminarily screened markers were selected to evaluate polymorphism in 94 diverse lentil *** total,125(45.29%)of 276 EST-SSR markers were found to be polymorphic.A total of 130,073 SNP loci were detected and 78(61.41%)of 127 SNPs were successfully converted to KASP *** genetic analyses of the lentil accessions with EST-SSR and KASP markers revealed similar genetic structures,suggesting that the RNA-Seq-generated resources and the developed markers are reliable for use in molecular marker-assisted breeding of lentil.

关键词： Lentil RNA-Seq EST-SSR KASP Genetic diversity