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基于三角型三羧酸配体的微孔Pr-MOF的晶体结构、表征和原位合成量热研究

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咸阳师范学院学报 2024年第2期39卷 25-30页

作者：王智香任小杰袁娜娜任宜霞延安大学化学与化工学院陕西延安716000 延长油田股份有限公司下寺湾采油厂陕西延安716000

以4,4',4''-三嗪-2,4,6-三基三苯甲酸(H_(3)TATB)的三角型三羧酸为有机配体,在水热条件下与硝酸镨反应合成了一种新型Pr-MOF微孔材料,命名为[Pr(TATB)(H_(2)O)](1)。晶体结构分析表明,该配合物具有以共边缘双核金属单元为特征的三维骨... 详细信息

以4,4',4''-三嗪-2,4,6-三基三苯甲酸(H_(3)TATB)的三角型三羧酸为有机配体,在水热条件下与硝酸镨反应合成了一种新型Pr-MOF微孔材料,命名为[Pr(TATB)(H_(2)O)](1)。晶体结构分析表明,该配合物具有以共边缘双核金属单元为特征的三维骨架。气体吸附实验表明,配合物具有微孔性,且对CO_(2)的吸附性能优于N_(2)。固态发射光谱表明,配合物在可见光范围内有特征发射。采用微量热法在413.15 K模拟了1的原位合成过程,结果表明配合物的合成过程可分为三个阶段,获得结晶过程的反应速率常数为k=2.91×10^(-10)。

关键词：配合物晶体结构发光性质原位量热法

乡村振兴战略下本科职业教育数字扶智长效机制

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继续教育研究 2024年第1期 98-102页

作者：任晓洁邹少冰郭宁山东财经大学东方学院山东泰安271000

数字扶智是推动乡村振兴的重要力量。针对我国乡村教育体系中存在的“知识鸿沟”“数字鸿沟”等问题,提出本科职业教育数字扶智长效机制建设路径,即以人才培养为核心,以数字素养培育为根本,以数字化教育资源建设为基础,以教学改革创新... 详细信息

数字扶智是推动乡村振兴的重要力量。针对我国乡村教育体系中存在的“知识鸿沟”“数字鸿沟”等问题,提出本科职业教育数字扶智长效机制建设路径,即以人才培养为核心,以数字素养培育为根本,以数字化教育资源建设为基础,以教学改革创新为关键,以高质量师资队伍建设为重点,以人才培养质量评价与反馈机制建设为保障,构建本科职业教育与乡村振兴深度融合的新模式、新机制、新路径。

关键词：乡村振兴本科职业教育数字扶智长效机制

日粮补充异亮氨酸对肉鸡生长性能、肉品质和肠道形态的影响

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饲料工业 2024年第7期45卷 30-37页

作者：刘恒晨任小杰高田玉杨维仁巩立书董晓丽李扬山东农业大学动物科技学院山东泰安271018 山东泰山生力源集团股份有限公司山东泰安271000 希杰(上海)商贸有限公司上海200336 蒙阴县畜牧发展促进中心山东临沂276200

试验旨在研究在日粮中补充异亮氨酸(Ile)对肉鸡生长性能、肉品质和肠道形态的影响。选取1日龄健康且状态良好爱拔益加(AA)肉仔鸡10500只,随机分为3组,每组7个重复,每个重复500只鸡。对照组(CON组)饲喂基础日粮,试验组饲喂在基础日粮基... 详细信息

试验旨在研究在日粮中补充异亮氨酸(Ile)对肉鸡生长性能、肉品质和肠道形态的影响。选取1日龄健康且状态良好爱拔益加(AA)肉仔鸡10500只,随机分为3组,每组7个重复,每个重复500只鸡。对照组(CON组)饲喂基础日粮,试验组饲喂在基础日粮基础上分别添加400 mg/kg Ile(ILE400组)和800 mg/kg Ile(ILE800组)的试验日粮。试验期42 d。结果表明:与对照组相比,ILE400组和ILE800组能够显著降低肉鸡的料重比(F/G)和死淘率(P<0.05),ILE400组肉鸡平均日增重(ADG)显著升高(P<0.05);ILE400组胸肌和腿肌亮度(L*)值和红度(a*)值显著升高(P<0.05),ILE400组胸肌黄度(b*)值显著高于ILE800组(P<0.05);ILE400组和ILE800组能够显著提高肉鸡腿肌中粗蛋白含量(P<0.05)。此外,与对照组和ILE800组相比,ILE400组能够显著提高胸肌雷帕霉素靶蛋白(mTOR)mRNA相对表达量和小肠绒毛高度(P<0.05)。ILE400组真核翻译起始因子4E结合蛋白1(4EBP1)mRNA相对表达量显著高于ILE800组(P<0.05)。由此可见,日粮中补充400 mg/kg Ile(前、中、后期日粮中总Ile水平为1.01%、0.90%和0.87%)能够提高肉鸡的生长性能,降低死淘率,改善肉鸡的肉色,通过激活mTOR通路相关基因的表达,提高肌肉中蛋白质的含量,并且有利于改善肠绒毛发育。

关键词：异亮氨酸肉鸡生长性能肉品质肠道形态

Rational design of a bifunctional fluorescent probe for distinguishing Hcy/Cys from GSH with ideal properties

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Chinese Chemical Letters 2021年第3期32卷 1061-1065页

作者： xiaojie ren Lide Liao Zhaoguang Yang Haipu Li Xi Li Yangang Wang Yong Ye Xiangzhi Song College of Chemistry&Chemical Engineering Central South UniversityChangsha 410083China Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety Changsha 410083China College of Biological Chemical Science and Engineering Jiaxing UniversityJiaxing 314001China College of Chemistry and Molecular Engineering Zhengzhou UniversityZhengzhou 450001China

By pairing two fluoropho res according to their optical prope rties such as absorption spectral overlap and absorptivity,fluorescent quantum yield and emission spectral separation,a bifunctional fluorescent probe,TQBF-NBD,was rationally designed and synthesized to discriminatively sense Hcy/Cys and GSH with good selectivity and *** is noted that this probe could work under a single-wave length excitation and displayed a mega-large Stokes ***-NBD reacted with Hcy/Cys to give a mixed green-red fluorescence and displayed a red fluorescence upon the treatment with *** imaging of intracellular Hcy/Cys from GSH with the help of TQBF-NBD was realized in living cells and zebrafish.

关键词： Borate complex Red-emitting Mega-large stokes shift Fluorescent probe

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四川小麦新品种的条锈病抗性基因分布

麦类作物学报 2024年第3期44卷 305-314页

作者：杨治任小杰蒋云王芳冯丽华郝明袁中伟甯顺腙姜博张连全伍碧华刘登才黄林西南作物基因资源发掘与利用国家重点实验室四川成都611130 四川农业大学小麦研究所四川成都611130 四川省农科院生物技术核技术研究所四川成都610066

条锈病是四川小麦重要病害。为了解四川近年来审定小麦品种的条锈病抗性水平和抗病基因利用情况,对2017年以来审定的63个小麦新品种进行条锈病抗性鉴定,利用抗病基因Yr5、Yr7、Yr15、Yr18、Yr27、Yr28、Yr36、Yr46、YrU1、YrSP的功能标... 详细信息

条锈病是四川小麦重要病害。为了解四川近年来审定小麦品种的条锈病抗性水平和抗病基因利用情况,对2017年以来审定的63个小麦新品种进行条锈病抗性鉴定,利用抗病基因Yr5、Yr7、Yr15、Yr18、Yr27、Yr28、Yr36、Yr46、YrU1、YrSP的功能标记和Yr17、Yr26、Yr29的紧密连锁标记进行检测。结果表明,57个品种在苗期对条锈菌小种CYR34的抗性水平达到中抗以上(IT=0~6)。所有品种的田间成株期抗性均达到中抗及以上(IT=1~4)。未检测到Yr5、Yr27、Yr46和YrU1的功能位点,其余9个基因均存在于四川小麦品种中。Yr7、Yr17、Yr26和Yr29在供试品种的分布频率超过50%。综上所述,四川小麦新品种条锈病抗性水平整体较高,条锈病抗性基因丰富;小麦祖先物种抗条锈病基因Yr15、Yr28和Yr36已成功应用于四川小麦育种。

关键词：四川小麦品种条锈病抗性抗病基因分子标记检测

维普期刊数据库博看期刊

Coumarin-based two-photon AIE fluorophores: Photophysical properties and biological application

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Chinese Chemical Letters 2023年第4期34卷 231-235页

作者： Yitong Yang Hao Zhong Benhua Wang xiaojie ren Xiangzhi Song College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China Department of Chemistry and Center of Super-Diamond and Advanced Films(COSDAF) City University of Hong KongHong Kong 999077China

Based on the coumarin skeleton, we deliberately designed two groups of fluorophores, termed as CoumR and Naph-Coum-R, using the diphenylamino group as the electron donor, which displayed longwavelength emissions(red spectral region), large Stokes shift(up to 204 nm), superior AIE performance,and large two-photon absorbance cross-sections(as high as 365 GM). The electron-withdrawing substituents at the 3-position of these dyes could induce a significant red-shift in their emission *** imaging experiments demonstrated the capability of these dyes as two-photon fluorophores for specifically staining lipid droplets in living cells.

关键词： Fluorescent dyes AIE Two-photon Large Stokes shifts Lipid droplets

Low-fat microwaved peanut snacks production:Effect of defatting treatment on structural characteristics,texture,color,and nutrition

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Journal of Integrative Agriculture 2024年第7期23卷 2491-2502页

作者： Bo Jiao Xin Guo Yiying Chen Shah Faisal Wenchao Liu xiaojie Ma Bicong Wu Guangyue ren Qiang Wang Institute of Food Science and Technology Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products ProcessingMinistry of Agriculture and Rural AffairsBeijing 100193China College of Food and Bioengineering Henan University of Science and TechnologyLuoyang 471000China State Key Laboratory of Food Science and Technology Jiangnan UniversityWuxi 214122China

This study develops low-fat microwaved peanut snacks(LMPS)using partially defatted peanuts(PDP)with different defatting ratios,catering to people’s pursuit of healthy,low-fat *** effects of defatting treatment on the structural characteristics,texture,color,and nutrient composition of LMPS were comprehensively *** structural characteristics of LMPS were characterized using X-ray micro-computed tomography(Micro-CT)and scanning electron microscope(SEM).The results demonstrated that the porosity,pore number,pore volume,brightness,brittleness,protein content,and total sugar content of LMPS all significantly increased(P<0.05)with the increase in the defatting *** the micro level,porous structure,cell wall rupture,and loss of intracellular material could be observed in LMPS after defatting *** made from PDP with a defatting ratio of 64.44%had the highest internal pore structural parameters(porosity 59%,pore number 85.3×10^(5),pore volume 68.23 mm3),the brightest color(L^(*) 78.39±0.39),the best brittleness(3.64±0.21)mm^(–1)),and the best nutrition(high protein content,(34.02±0.38)%;high total sugar content,(17.45±0.59)%;low-fat content,(27.58±0.85)%).The study provides a theoretical basis for the quality improvement of LMPS.

关键词： low-fat microwaved peanut snacks(LMPS) X-ray micro-computed tomography(Micro-CT) porosity texture color nutrition

高频动态多星座GNSS数据的周跳低时延解算方法

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测绘学报 2021年第3期50卷 295-303页

作者：冯威任小杰张熙黄丁发西南交通大学地球科学与环境工程学院四川成都611700 自然资源部第三大地测量队四川成都610100

对于高频高动态的连续实时动态(RTK)定位,快速低时延的周跳探测与修复至关重要。基于高频数据误差特征和改进的几何无关相位组合MGF(modified geometry-free combination),本文提出了一种观测值域的动态GNSS周跳低时延解算方法OMGF(obse... 详细信息

对于高频高动态的连续实时动态(RTK)定位,快速低时延的周跳探测与修复至关重要。基于高频数据误差特征和改进的几何无关相位组合MGF(modified geometry-free combination),本文提出了一种观测值域的动态GNSS周跳低时延解算方法OMGF(observation based MGF)。首先基于高频观测数据的噪声特性,利用伪距与相位组合得到周跳初始修复量,再结合MGF对初始修复量进行精确修复。推导了不同卫星系统的伪距和相位噪声水平对OMGF方法周跳修复成功率的影响,以及OMGF方法适用的观测值噪声边界条件。OMGF方法仅需利用单颗卫星的观测数据进行周跳探测与修复,且降低了周跳修复对伪距观测值的精度要求。利用实测的20 Hz三星座GNSS(GPS/BDS/GLONASS)动态数据进行试验分析,结果表明:OMGF方法的成功率约为99.998%;与GF(geometry-free combination)和HMW(Hatch-Melbourne-Wübbena combination)组合方法相比,OMGF方法解算速度提高了60倍。OMGF方法的算法复杂度低,计算效率高,有利于算力资源受限的移动端超高频实时动态定位数据的在线快速处理。

关键词：高频动态低时延改进的几何无关相位组合周跳

High-efficiency breeding of early-maturing rice cultivars via CRISPR/Cas9-mediated genome editing

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Journal of Genetics and Genomics 2017年第3期44卷 175-178页

作者： Xiufeng Li Wenjia Zhou Yuekun ren xiaojie Tian Tianxiao Lv Zhenyu Wang Jun Fang Chengcai Chu Jie Yang Qingyun Bu Northeast Institute of Geography and Agroecology Key Laboratory of Soybean Molecular Design BreedingChinese Academy of SciencesHarbin 150081China Graduate University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Institute of Food Crops Jiangsu Academy of Agricultural SciencesNanjing 210014China

Rice is a staple food for more than half of the human *** has been estimated that by 2030,40%more rice needs to be produced in order to meet the growing demand（Khush,2005）.One of the strategies to improve rice productivity is to enlarge rice growth areas, such as the northward expansion of the growth region in Heilongjiang Province, the northernmost region of China （Li et al., 2015）. However, the northward cultivation is accompanied with daylength extension and temperature decrease, which are unfavor- able for rice, a tropical short-day plant, to complete flowering and seed setting. Thus, the need for early-maturing rice cultivars with extremely low photoperiod sensitivity is urgent.

关键词： In than High-efficiency breeding of early-maturing rice cultivars via CRISPR/Cas9-mediated genome editing