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Chemical Research in Chinese Universities 2008年第5期24卷 584-587页

作者： HOU A-li MENG Qing-fan AN jin-shuang ZHU Kai FENG Yun TENG Li-rong College of Life Science Jilin University Changchun 130012 P. R. China

The crude polysaccharide was obtained by means of the decolorization of porphyrized Cordyceps minlitaris stroma with organic solvent, extraction with hot water, precipitation in 80% ethanol, and protein removal with the Sevag method. After purification with Sephadex G-75, two of its components, CMP-1 and CMP-2, were obtained. Through the assay of gel chromatography and polarimetry, CMP-1 was identified as pure polysaccharide. The results demonstrated that CMP-1 had favorable oxidation resistance activity, which could scavenge not only oxygen-free radicals in the self-oxidation system of pyrogallic acid, but also the hydroxide-free radicals in the Fenton system. The study focused on the effects of low, medium, and high dosages of CMP-1 in rat blood serum on the proliferation of glomerular mesangial cells in vitro. Through MTT Colorimetric analysis, the activities were compared among the blank control group and the Niaoduqing positive control group CMP-1 and CMP-2. The results shows that CMP-1 was able to inhibit the proliferation of rat glomerular mesangial cells effectively. Therefore, CMP-1, one component of polysaccharides of Cordyceps minlitaris, was certainly a potential remedy for hyperplastic glomerular nephritis, whose antioxidant activity could slow down the process of chronic renal failure（CRF） to some extent.

关键词： Cordyceps minlitaris Polysaccharide Glomerular mesangial cell Oxidation resistance Chronic renal failure

氮磷钾不同配比施肥对树番茄幼苗生长及叶片养分含量的影响

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中国土壤与肥料 2024年第7期 108-122页

作者：郑绍傑金友帆董琼赵启泽韦兴兰王元友石顺柔西南林业大学林学院云南昆明650224 西南山地森林资源保育与利用教育部重点实验室云南昆明650224 福建林业职业技术学院福建南平353000

为探明氮、磷、钾不同配比施肥对树番茄(Cyphomandrabetacea)幼苗生长及叶片养分含量的影响。以1年生树番茄幼苗为对象,采用氮磷钾3因素3水平的正交试验设计L_(9)(3^(4)),不施肥为对照组(CK),测定分析氮、磷、钾不同配比施肥对树番茄幼... 详细信息

为探明氮、磷、钾不同配比施肥对树番茄(Cyphomandrabetacea)幼苗生长及叶片养分含量的影响。以1年生树番茄幼苗为对象,采用氮磷钾3因素3水平的正交试验设计L_(9)(3^(4)),不施肥为对照组(CK),测定分析氮、磷、钾不同配比施肥对树番茄幼苗生长及叶片养分含量的影响。结果表明,氮、磷、钾不同配比施肥下显著提高树番茄幼苗根、茎、叶生物量积累,且各器官生物量分配表现为根>叶>茎。树番茄幼苗叶片养分积累为氮>钾>磷,叶片氮和钾在A_(3)B_(2)C_(1)和A_(2)B_(2)C_(3)处理最佳,即添加6g/株氮和6g/株钾,CK组氮磷比<14,植物生长受氮限制。光合色素、可溶性糖及淀粉含量在A_(1)B_(3)C_(3)处理最优,可溶性蛋白和超氧化物歧化酶活性在A_(2)B_(2)C_(3)处理最佳,过氧化物酶活性在A_(2)B_(3)C_(1)处理最好,丙二醛含量在A_(2)B_(1)C_(2)处理最低,保护树番茄幼苗受害效果最佳。相关性分析得出不同施肥处理下树番茄幼苗生物量、叶片性状、光合色素、氮磷钾含量、非结构性碳水化合物含量及保护酶、丙二醛存在一定极显著正相关关系(P<0.01);主成分分析得出,各指标累计贡献率达79.69%,模糊隶属函数综合评价表明A_(1)B_(3)C_(3)处理对树番茄幼苗生长效果最佳。综合试验结果中树番茄幼苗生长指标、叶片养分含量、光合色素、保护酶及丙二醛的情况,配比施肥最佳处理为A_(1)B_(3)C_(3即施加尿素2.0g/株+过磷酸钙6.0g/株+硫酸钾6.0g/株。

关键词：树番茄配比施肥叶片养分生长

Synthesis and herbicidal activities of pyridyl sulfonylureas:More convenient preparation process of phenyl pyrimidylcarbamates

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Chinese Chemical Letters 2008年第11期19卷 1268-1270页

作者： Ning Ma Zhi jin fan Bao Lei Wang Yong Hong Li Zheng Ming Li Department of Chemistry School of Science lianjin University lianjin 300072 China State Key Laboratory of Elemento Organic Chemistry Institute of Elemento-Organic Chemistry Nankai University Tianjin 300071 China

Four 4-monosubstituted pyrimidine pyridyl sulfonylureas were synthesized from pyridinesulfonamide and phenyl pyrimidylcarbamate and screened for herbicidal activities. We also reported a convenient preparation process... 详细信息

关键词： Sulfonylurea Herbicidal activity Phenyl carbamate

Characteristics of Potassium-Enriched, Flue-Cured Tobacco Genotype in Potassium Absorption, Accumulation, and In-Ward Potassium Currents of Root Cortex

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Agricultural Sciences in China 2007年第12期6卷 1479-1486页

作者： YNAG Tie-zhao LU Li-ming XIA Wei fan jin-hua College of Agronomy Henan Agricultural University Zhengzhou 450002 P.R.China College of Agronomy Sichuan Agricultural University Ya＇an 625014 P.R.China

This study was to investigate the main traits of potassium-enriched, flue-cured tobacco genotypes related to potassium absorption, accumulation, and in-ward potassium currents of the root cortex. Hydroponic methods, K^＋-depletion methods, and patch-clamp, whole-cell recordings were conducted to study the accumulation of dry matter and potassium in different organs, and to measure potassium absorption and dynamic and in-ward potassium currents in potassium-enriched, fluecured tobacco genotypes. The average dry weights of leaves and whole plant of potassium-enriched, flue-cured tobacco genotype ND202 were 10.20, and 14.85 g, respectively, higher than JYH （8.50 and 13.11 g, respectively） and NC2326 （8.39 and 12.72 g, respectively）, when potassium concentration in the solution ranged from 0.1 to 50 mmol L^-1. Potassium accumulation in the leaves of ND202 was 18.6% higher than JYH and 34% higher than NC2326 when potassium concentration in the solution was superior to 0.5 mmol L^-1. The Vmax （the maximum velocity） of ND202 was 118.11 lamol FW g^-1 h^-1, obviously higher than that of JYH （58.87 μmol FW g^-1 h^-1） and NC2326 （64.40 μmol FW g^-1 h^-1）. In the in-ward potassium currents, the absolute value of current density （pA/pF） of ND202 was 60, higher than that of JYH （50） and NC2326 （40）. Potassium concentration in leaves, Vmax, and in-ward potassium currents, could be used to screen potassium-enriched, flue-cured tobacco genotypes.

关键词： flue-cured tobacco potassium-enriched genotype potassium absorption potassium content in-wardpotassium currents

印支—燕山期断裂构造对辽东小窑沟滑石矿床的改造及找矿预测

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中国非金属矿工业导刊 2024年第3期 11-15页

作者：樊金虎李鹏王鹏孙立秋王政辽宁省第五地质大队有限责任公司辽宁营口大石桥115100 吉林省有色金属地质勘查局六〇四队吉林吉林132013

小窑沟地区滑石矿是辽宁南部营口—海城地区滑石成矿带内一处典型的大型滑石矿床。古元古界辽河群大石桥岩组三岩段的菱镁大理岩、白云石大理岩是滑石的主要含矿层和赋矿围岩,矿床受控于区域近东西向的英落—草河口复向斜北翼的层间挤... 详细信息

小窑沟地区滑石矿是辽宁南部营口—海城地区滑石成矿带内一处典型的大型滑石矿床。古元古界辽河群大石桥岩组三岩段的菱镁大理岩、白云石大理岩是滑石的主要含矿层和赋矿围岩,矿床受控于区域近东西向的英落—草河口复向斜北翼的层间挤压破碎带,其成矿与区域变质作用密切相关,矿床属沉积变质层控中低温热液交代成因。本文在详细研究矿床特征的基础上,结合区域成矿规律和近几年矿区取得的找矿成果,通过分析本区滑石矿床的控矿因素和找矿标志,认为小窑沟矿区勘查中发现的北西向F1断层为印支—燕山期(成矿期后)形成的右行平移断层,该断层深部错断了小窑沟大型滑石矿床,导致矿区深部厚大矿体突然消失,因此认为F1断层以东大石桥岩组三岩段分布区具有进一步找矿潜力。

关键词：小窑沟滑石矿床印支—燕山期断裂构造改造找矿预测

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Synthesis and biological activity of novel N-(3-furan-2-yl-1-phenyl-1H-pyrazol-5-yl) amides derivatives

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Chinese Chemical Letters 2016年第9期27卷 1547-1550页

作者： jing-Qian Huo Liu-Yong Ma Zhe Zhang Zhi-jin fan jin-Lin Zhang Tetyana V. Beryozkina Vasiliy A. Bakulev College of Plant Protection Agricultural University of Hebei Baoding 071001 China State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University Tianjin 300071 China The Ural Federal University Named after the First President of Russia B.N. Yeltsin Ekaterinburg 620002 Russia

A series of novel N-（3-furan-2-yl-l-phenyl-lH-pyrazol-5-yl） amides derivatives were designed and synthesized. Their structures were confirmed by 1H NMR, 13C NMR and HRMS. All title compounds were evaluated for their herbicidal and antifungal activities. Preliminary bioassay results indicated that the title compounds showed good to moderate herbicidal activity at 1000 mg/L. Compound 6q presented the best activity against Digitaria sanguinalis （L） Scop., Amaranthus retroflexus L. and Arabidopsis thaliana with an inhibition degree of five. Compound 6d also showed an inhibition degree of five against D. sanguinalis. In addition, at 50 mg/L, most compounds exhibited good in vitro antifungal activity against Sclerotinia sclerotiorum, with compound 6c showing over 90% antifungal activity against S. sclerotiorum and Pellicularia sasakii.

关键词： Amides derivative Pyrazole Furan Synthesis Herbicidal activity Fungicidal activity

老年白内障患者人格特点与术前视功能期望水平和术前焦虑的关系探究

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四川生理科学杂志 2024年第4期46卷 730-732页

作者：钟海蓉卢峰梅范金花欧阳敏安远县人民医院眼耳鼻喉科江西赣州342100

目的:探讨老年白内障患者人格特点与术前视功能期望水平和术前焦虑的关系。方法:选取2023年1月至2023年9月在我院预期行白内障手术的98例老年白内障患者作为研究对象,将其作为观察组。另选同期在我院进行健康体检的50例老年人作为对照... 详细信息

目的:探讨老年白内障患者人格特点与术前视功能期望水平和术前焦虑的关系。方法:选取2023年1月至2023年9月在我院预期行白内障手术的98例老年白内障患者作为研究对象,将其作为观察组。另选同期在我院进行健康体检的50例老年人作为对照组。比较两组患者的大五因素人格量表(NEO Five-Factor Inventory,NEOFFI)评估结果。使用视觉功能问卷(Vision-Related Quality of Life and Visual Function,VFQ-25)、焦虑自评量表(Self-Rating Anxiety Scale,SAS)评估观察组患者的术前视功能期望水平、术前焦虑状况。分析老年白内障患者人格特点与术前视功能期望水平和术前焦虑的关系。结果:调查结果显示,观察组神经质、开放性、宜人性得分低于对照组(P<0.05)。相关性分析显示,老年白内障患者VFQ-25总分与SAS总分呈正相关(P<0.05),神经质维度、开放性维度、宜人性维度得分与SAS总分呈负相关(P<0.05)。多因素Logistic回归分析结果显示,神经质、开放性、宜人性、VFQ-25是老年白内障患者术前焦虑状况的独立影响因素。结论:老年白内障患者人格特征与健康老年人有明显差异,患者的人格特点、术前视功能期望水平与术前焦虑状况密切相关,可通过针对患者人格特点及术前视功能期望水平改善患者术前焦虑。

关键词：老年白内障人格特点视功能期望水平术前焦虑相关性分析

三维Ni_(3)S_(2)@NiCo-LDH纳米复合材料合成及其电氧化尿素制氢性能研究

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现代化工 2024年第4期44卷 156-163页

作者：王志豪范金成崔柯昕肖国才高善强黄婷谭子聪长沙理工大学材料科学与工程学院湖南长沙410000

为设计高效、廉价和耐用的催化裂解水制氢电催化剂,合成了Ni_(3)S_(2)纳米线@NiCo-LDH纳米复合材料(Ni_(3)S_(2)@NiCo-LDH)。结果表明,该复合材料具有大量的活性位点,表现出很好的电催化制氢性能。在含有尿素的KOH电解液中,Ni_(3)S_(2)@... 详细信息

为设计高效、廉价和耐用的催化裂解水制氢电催化剂,合成了Ni_(3)S_(2)纳米线@NiCo-LDH纳米复合材料(Ni_(3)S_(2)@NiCo-LDH)。结果表明,该复合材料具有大量的活性位点,表现出很好的电催化制氢性能。在含有尿素的KOH电解液中,Ni_(3)S_(2)@NiCo-LDH电极材料仅需1.373 V就能达到10 mA/cm~2的电流密度。在双电极体系Ni_(3)S_(2)@NiCo-LDH//Pt中,电流密度为10 mA/cm~2时电压仅为1.463 V。因此,Ni_(3)S_(2)@NiCo-LDH纳米复合材料是一种优良的新型催化水解产氢电催化剂。

关键词：纳米材料复合材料催化剂制氢尿素氧化

Development of sandwich joining piece to fabricate segmented half-Heusler/skutterudite thermoelectric joints

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Rare Metals 2021年第7期40卷 1966-1970页

作者： Wei-An Wang Xiao-Ya Li Yun-Fei Xing Ming Gu Long-Hui fang Ye-Feng Bao jin-Hui fan School of Mechanical and Electrical Engineering Hohai UniversityChangzhou 213022China The State Key Lab of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China School of Mechanical Engineering Donghua UniversityShanghai 201620China

Sn/Ni-Sn/Sn sandwich joining piece was developed and applied to fabricate segmented half-Heusler/skutterudite thermoelectric joints,and high-temperature service behavior of the joints was *** microstructure and contact resistance of the joint before and after aging were *** joints are well bonded and no cracks appear at the interfaces of the joint before and after aging,which can be attributed to the formation of high-melting point intermetallic *** electrical resistance crosses the joining layer smoothly and the contact resistance is *** results show that the sandwich joining piece is effective and flexible,and promising for the preparation of segmented thermoelectric devices.

关键词： Sandwich joining piece Segmented thermoelectric joint Microstructure Contact resistance

多光谱法结合分子对接探究4种黄酮与β-乳球蛋白的相互作用

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食品安全质量检测学报 2024年第13期15卷 77-88页

作者：闫焕康柱张炎周素珍范金波渤海大学食品科学与工程学院生鲜农产品贮藏加工及安全控制技术国家地方联合工程研究中心锦州121013

目的探究4种黄酮[柚皮苷(naringin,Nar)、黄芩素(baicalein,Bai)、白杨素(chrysin,Chr)和漆黄素(fisetin,Fis)]与β-乳球蛋白(β-lactoglobulin,β-Lg)的相互作用。方法首先采用分子对接技术模拟预测4种黄酮与β-Lg的结合位点,再利用... 详细信息

目的探究4种黄酮[柚皮苷(naringin,Nar)、黄芩素(baicalein,Bai)、白杨素(chrysin,Chr)和漆黄素(fisetin,Fis)]与β-乳球蛋白(β-lactoglobulin,β-Lg)的相互作用。方法首先采用分子对接技术模拟预测4种黄酮与β-Lg的结合位点,再利用荧光光谱法研究4种黄酮与β-Lg的荧光猝灭作用及作用机制,并计算相关参数,最后通过多种光谱法分析4种黄酮对β-Lg空间构象的变化。结果分子对接结果表明Nar和Fis结合在β-Lg的疏水空腔口处,Bai与Chr与β-Lg的结合位点在β-Lg的外表面。荧光光谱结果表明,4种黄酮对β-Lg均产生静态猝灭,结合常数均在104~107数量级,说明Nar/Bai/Chr/Fis均与β-Lg结合紧密且形成稳定的复合物;热力学参数分析表明Nar/Bai/Chr/Fis与β-Lg的结合为自发进行,其中Nar/Bai与β-Lg作用力类型是氢键和范德华力, Chr/Fis与β-Lg是疏水相互作用。同步荧光光谱、三维荧光光谱、紫外-可见光吸收光谱和傅里叶变换红外光谱结果表明,Nar/Bai/Chr/Fis与β-Lg发生相互作用后使β-Lg的空间构象发生变化。结论 4种黄酮均能与β-Lg结合,为黄酮类化合物与生物大分子作用机制研究及对活性成分的保护和利用提供理论支持。

关键词：柚皮苷黄芩素白杨素漆黄素 β-乳球蛋白多光谱法