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Chinese Journal of Structural Chemistry 2022年第7期41卷 35-39页

作者： Jiayuan Li Yuefei Li Qingyu Xue yuchi gao Yuanyuan Ma Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi'an 710072China

Nickel(Ni)-based materials are promising electrocatalysts for the urea electrooxidation reaction, as the in situ formed NiOOH species on their surface during operation are catalytically active sites. In this work, phytate-coordinated Ni foam(PA-NF)is shown to deliver a high catalytic performance, with a potential as low as 1.38 V at 10m A/cm2, a Tafel slope as low as 64.1 mV/dec, and superior catalytic stability. Characterizations revealed that such a high performance was ascribed to the kinetic acceleration of surface reconstruction and the enriched NiOOH active species on the PA-NF surface owing to PA-coordination induced upshift of d-band center of Ni ***, a novel and simple strategy is provided for designing the efficient as well as universal Ni-based catalyst for the electrooxidation of urea, which can also be extended to other transition-metal-based systems.

关键词： phytates surface coordination urea electrooxidation reaction electrocatalysis

In vitro anther culture and Agrobacterium-mediated transformation of the AP1 gene from Salix integra Linn. in haploid poplar(Populus simonii × P. nigra)

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Journal of Forestry Research 2018年第2期29卷 320-329页

作者： Jingli Yang Kun Li Chunyan Li Junxiu Li Bo Zhao Wei Zheng yuchi gao Chenghao Li State Key Laboratory of Tree Genetics and Breeding Northeast Forestry University Department of Pharmacy Heilongjiang University of Chinese Medicine Research Center on Life Sciences and Environmental Sciences Harbin University of Commerce Annoroad Gene Technology Co. Ltd

A reliable,efficient anther culture system,the dominant technique for generating haploid plants in breeding programs,that can be used for generating transgenic poplar plants has been *** the present study,therefore,an anther culture system was developed using isolated mid-and late-uninucleate anthers of poplar(Populus simonii x ***).From a combination of SSR and ploidy analyses,six double haploid and two haploid lines were characterized from 86 plants grown from 16 regenerated anther cultured *** 48 months of development,two plant lines from the regenerated plants maintained their haploid level in vitro for over 2 years.A number of haploid plants from the different lines weretransferred to *** leaves of these transplants were then used as explants for transformation with the APETALA1(AP1) gene using Agrobacterium *** of AP1 in haploid poplar induced early flowering with obvious petals when ectopically *** our knowledge,this is the first report on changes in flowering time in AP1-trangenic poplar,which is important for elucidating the regulatory mechanism of tree flower development.

关键词： Pollen grain Populus Flower development Haploid APETALA1

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白桦优良家系及单株配合选择

东北林业大学学报 2009年第9期37卷 1-3,11页

作者：魏志刚刘关君高玉池杨传平刘桂丰林木遗传育种与生物技术教育部重点实验室(东北林业大学) 哈尔滨150040

对东北林业大学帽儿山试验林场10年生白桦216个半同胞子代家系测定林的胸径、树高、材积和纤维素含量性状进行了测定和分析,结果表明:家系间树高、材积和纤维素含量差异极显著,胸径差异显著。综合育种值评分法、性状表现水平分析法和独... 详细信息

对东北林业大学帽儿山试验林场10年生白桦216个半同胞子代家系测定林的胸径、树高、材积和纤维素含量性状进行了测定和分析,结果表明:家系间树高、材积和纤维素含量差异极显著,胸径差异显著。综合育种值评分法、性状表现水平分析法和独立淘汰水平评选法选择结果,选出20个优良家系,其树高、胸径、材积和纤维素含量平均增加23.83%、22.46%、62.04%和16.15%,遗传增益分别为12.32%、8.74%、35.21%和14.9%。从优良家系内选择80株优良单株,其树高、胸径、材积和纤维素含量平均增加36.83%、40.6%、108.61%和25.65%,预期遗传增益分别为15.55%、10.91%、39.9%和18.59%,这些优良单株可作为营建白桦高世代种子园的备选材料。

关键词：白桦优良家系优良单株配合选择

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引种盐松不同种源种子表型性状和发芽特性

东北林业大学学报 2009年第11期37卷 7-10页

作者：魏志刚高玉池杨传平刘桂丰王军刘关君林木遗传育种与生物技术教育部重点实验室(东北林业大学) 哈尔滨150040

以大兴安岭种源樟子松种子为对照,对引进的9个盐松种源种子的表型性状和发芽特性进行了研究,结果表明:各种源种子净度高,含水量适中,适合干藏法贮藏;不同种源之间种子长、宽、厚、厚宽比、千粒质量、发芽率、发芽指数差异显著,而长宽比... 详细信息

以大兴安岭种源樟子松种子为对照,对引进的9个盐松种源种子的表型性状和发芽特性进行了研究,结果表明:各种源种子净度高,含水量适中,适合干藏法贮藏;不同种源之间种子长、宽、厚、厚宽比、千粒质量、发芽率、发芽指数差异显著,而长宽比、发芽势和平均发芽时间差异不显著;四唑染色测种子的生活力结果与对比发芽试验的结果很接近,说明用四唑染色方法能较准确地测定盐松种子的发芽能力。对比引进盐松和国内樟子松种子发现,引进盐松种子在质量、体积和发芽能力上均高于国内樟子松种子,但形状差异不大。相关分析表明,引进种子各性状之间多数存在显著正相关关系。

关键词：盐松种源种子表型性状发芽特性

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白桦优质速生纤维材家系的选择

东北林业大学学报 2008年第11期36卷 15-17页

作者：朱大群高玉池魏志刚杨传平刘桂丰刘关君黑龙江省柴河林业局海林157131 林木遗传育种与生物技术教育部重点实验室(东北林业大学)

对帽儿山10年生白桦种源试验林中的帽儿山、东方红和乌伊岭3个优良种源的30个家系进行调查研究。结果表明:不同家系在树高、胸径、材积和纤维素含量上均存在显著差异。对各性状进行遗传参数估算、主成分分析和不同的聚类分析,最终筛选... 详细信息

对帽儿山10年生白桦种源试验林中的帽儿山、东方红和乌伊岭3个优良种源的30个家系进行调查研究。结果表明:不同家系在树高、胸径、材积和纤维素含量上均存在显著差异。对各性状进行遗传参数估算、主成分分析和不同的聚类分析,最终筛选出东方红14、帽儿山9和帽儿山14共3个纤维材优良家系,这3个家系纤维素质量分数的遗传增益分别为5.08%、4.35%和4.16%,材积遗传增益分别为23.96%、22.85%和21.55%。

关键词：白桦纤维材家系

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白桦核心种质构建的抽样方法

东北林业大学学报 2009年第7期37卷 1-4页

作者：魏志刚高玉池杨传平刘桂丰刘关君张含国林木遗传育种与生物技术教育部重点实验室(东北林业大学) 哈尔滨150040

以白桦种质资源240个家系的胸径、树高、材积和纤维素含量数据为依据,在采用马氏距离计算家系间距离、不加权类平均聚类法和10%的抽样比例下,研究了多次聚类随机抽样法、多次聚类优先取样法和多次聚类偏离度取样法构建的核心种质遗传参... 详细信息

以白桦种质资源240个家系的胸径、树高、材积和纤维素含量数据为依据,在采用马氏距离计算家系间距离、不加权类平均聚类法和10%的抽样比例下,研究了多次聚类随机抽样法、多次聚类优先取样法和多次聚类偏离度取样法构建的核心种质遗传参数、聚类结果和分布格局。结果表明,多次聚类优先取样法构建的核心种质最能代表原种质群体。

关键词：白桦种质资源核心种质抽样方法

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引种盐松苗期种源试验

东北林业大学学报 2009年第12期37卷 1-2,24页

作者：魏志刚高玉池杨传平王军刘桂丰张晓蕾刘关君林木遗传育种与生物技术教育部重点实验室(东北林业大学) 哈尔滨150040

以国内樟子松为对照,对引进的10个种源盐松2年生苗木生长性状进行了测定和分析。结果表明:种源间地径、苗高、地上干质量、地下干质量、顶芽长度和最大侧根长差异极显著,主根长差异显著,最长初生针叶长不显著。除地径和主根长外,其它性... 详细信息

以国内樟子松为对照,对引进的10个种源盐松2年生苗木生长性状进行了测定和分析。结果表明:种源间地径、苗高、地上干质量、地下干质量、顶芽长度和最大侧根长差异极显著,主根长差异显著,最长初生针叶长不显著。除地径和主根长外,其它性状的遗传力均在80%以上,遗传变异系数均在16%以上,具有丰富的遗传变异基础。应用综合选择指数法对11个种源苗木生长状况进行评价,结果表明盐松的生长状况优于樟子松。以2种标准进行优良种源初步选择,按标准I选择的优良种源为N9和17274种源,按标准II选择的优良种源为N9、17274、17267、N10和754种源。标准I较标准II选择更严格,获得的遗传增益更大。

关键词：盐松苗期遗传变异种源选择

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当代视角下的中华武德内涵解析

中华武术 2021年第7期 118-120页

作者：官云申张铁明高宇池卿丹红中南民族大学体育学院湖北武汉430074 中国海洋大学体育系山东青岛266100 贵州师范大学外国语学院贵州贵阳550018

继承与发扬"传统美德"是中华民族传统文化的重要任务和社会需求。中国武术所蕴含的武德文化是传统道德的缩影并深受儒家文化影响。在新时代国家把"立德树人"作为教育根本任务的引领下,发掘武术中武德文化的育人价值,结合新时代道德需求... 详细信息

继承与发扬"传统美德"是中华民族传统文化的重要任务和社会需求。中国武术所蕴含的武德文化是传统道德的缩影并深受儒家文化影响。在新时代国家把"立德树人"作为教育根本任务的引领下,发掘武术中武德文化的育人价值,结合新时代道德需求,对武德文化进行合理的"扬弃",可以助力实现传承中华优秀传统文化的责任和使命。

关键词：武德武术文化伦理道德精神境界

Impacts of dams and land-use changes on hydromorphology of braided channels in the Lhasa River of the Qinghai-Tibet Plateau,China

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International Journal of Sediment Research 2022年第2期37卷 214-228页

作者： yuchi You Zhiwei Li Peng gao Tiesong Hu School of Hydraulic Engineering Changsha University of Science & Technology State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan University Department of Geography and the Environment Syracuse University

Among braided rivers developed on the Qinghai-Tibet Plateau of China at very high elevations(>3,500 m),the middle and lower reaches of the Lhasa River have been affected by comprehensive human activities mainly involving dam construction,urbanization,farming,afforestation,and *** the current study,the impacts of these human activities on hydrology and morphology of the four braided reaches downstream of a cascaded of two dams are *** study period was divided into 1985-2006(P1),2006-2013(P2),and 2013-2019(P3),representing the natural and changed flow regimes by *** available daily discharge data at two stations within the four braided reaches,dam-induced hydrological alteration was analyzed based on the indicators of hydrologic alteration and range of variability approach and key discharge proxies were *** sensed images also were selected in the three periods and morphological metrics extracted from them were compared for the four reaches among these *** hydrological regimes were found for only two *** total channel width(Wc) and braiding intensity(BIt) followed different temporal trends among the four *** average shift rates of the main channel in the four reaches were higher in the short(P2-P3) than in the long(P1-P2 and P1-P3) *** longitudinal changes of Wcand the number of channels did not have any identifiable trend among the four *** linking the morphological changes to quantified spatial and temporal patterns of various human activities,it was found that(1) the two dams had insignificant impact on channel morphology,suggesting that the studied braided river might have a short relaxation time and(2) the evolutional trajectories of morphological changes in most of the four reaches were similar,suggesting that temporal trends of morphological changes due to complex human activities are not affected by the different physiographic settings of the *** exploitati

关键词： Braided river Channel morphology Human activities Dam impact

Realizing translucency in aluminosilicate glass at ultralow temperature via cold sintering process

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Journal of Advanced Ceramics 2022年第11期11卷 1714-1724页

作者： Jie gao Kangjing WANG Wei LUO Xiaowei CHENG yuchi FAN Wan JIANG State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China Department of Chemistry Fudan UniversityShanghai 200438China

Glass with high visible-light transparency is widely considered as the most important optical material,which typically requires a processing temperature higher than 1000℃.Here,we report a translucent aluminosilicate glass that can be prepared by cold sintering process(CSP)at merely 300℃.After eliminating structural pores in hexagonal faujasite(EMT)-type zeolite by heat treatment,the obtained highly active nanoparticles are consolidated to have nearly full density by adding NaOH solution as liquid ***,direct densification of EMT powder cannot remove the structural pores of zeolite completely,leading to an opaque compact after the *** is proved that the chemical reaction between the NaOH-and zeolite-derived powders is highly beneficial to dissolution–precipitation process during sintering,leading to the ultra-low activation energy of 27.13 kJ/*** the addition of 5 M NaOH solution greatly promotes the densification via the reaction with aluminosilicate powder,lower or higher concentration of solvent can deteriorate the transmittance of ***,the CSP-prepared glass exhibits a Vickers hardness of 4.3 GPa,reaching 60%of the reported value for spark plasma sintering(SPS)-prepared sample.

关键词： glass cold sintering process(CSP) optical properties mechanical properties