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聚氨酯产业前沿技术及应用发展

聚氨酯工业 2024年第1期39卷 1-8页

作者：唐劲松项超力盛兴丰崔燕军蒋红梅王宏涛王绪石岩上海华峰新材料研发科技有限公司上海201315

从原料助剂及材料应用等方面对聚氨酯行业环保及可持续性发展、高性能材料、功能化、智能化及先进制造技术等前沿技术进行了总结,并对聚氨酯产业未来发展趋势进行了展望。

关键词：聚氨酯生物基前沿技术发展趋势

Oxidation Performance and Interdiffusion Behavior of a Pt-Modified Aluminide Coating with Pre-deposition of Ni

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Acta Metallurgica Sinica(English Letters) 2019年第12期32卷 1490-1500页

作者： He Liu Shuai Li Cheng-Yang jiang Chun-tang Yu Ze-Bin Bao sheng-Long Zhu Fu-Hui Wang Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China Shenyang National Laboratory for Materials Science Northeastern UniversityShenyang 110819China

To refrain the interdiffusion of elements while holding good oxidation resistance,a(Ni,Pt)Al/Ni composite coating was prepared by sequential treatments of electroplating Ni and Pt and successive gaseous *** comparison with normal(Ni,Pt)Al coating,high-temperature performance of the composite coating was evaluated in isothermal oxidation test at 1100℃.Both the two coatings exhibited good resistance against high-temperature oxidation,but the interdiffusion of elements between composite coating and single-crystal(SC)superalloy substrate was greatly relieved,in which the thickness of secondary reaction zone(SRZ)and the amount of precipitated topologically close-packed phase in the SC alloy matrix were significantly *** responsible for delaying rate of coating degradation and SRZ growth/propagation are discussed.

关键词： Aluminide coating Oxidation Interdiffusion Microstructure

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蛋壳微载体对硝化颗粒污泥快速培养的影响

中国环境科学 2024年第10期44卷 5481-5489页

作者：蒋宽胜汤皓婷隆静李明骏张良伟周含赵薇刘文如苏州科技大学环境科学与工程学院江苏苏州215009 城市生活污水资源化利用技术国家地方联合工程实验室江苏苏州215009 江苏省水处理技术与材料协同创新中心江苏苏州215009

采用连续流气提内循环反应器,考察了投加蛋壳微载体对硝化颗粒污泥快速培养的影响特性.结果表明,投加0.5g/L蛋壳微载体(75μm)的反应器(R2)1个月内实现污泥颗粒化,比对照组(R1)提前1~2周,且R2所得颗粒污泥表现出更高的混合液挥发性悬浮... 详细信息

采用连续流气提内循环反应器,考察了投加蛋壳微载体对硝化颗粒污泥快速培养的影响特性.结果表明,投加0.5g/L蛋壳微载体(75μm)的反应器(R2)1个月内实现污泥颗粒化,比对照组(R1)提前1~2周,且R2所得颗粒污泥表现出更高的混合液挥发性悬浮固体浓度(MLVSS)(R1=1.7g/L、R2=2.2g/L)、紧密结合型胞外聚合物(TB-EPS)含量(R1=97.65mg/gVSS、R2=136.29mg/gVSS)及TB-PN/PS比值(R1=2.95、R2=4.73),以及更好的沉降性能(R1、R2的SVI_(3)和SVI_(30)分别为41.67,37.5mL/g,30.36,28.57mL/g).与R1相比,R2中颗粒污泥具有更高活性,比耗氧速率(SOUR)和比氨氧化速率(SAOR)分别为754mgO_(2)/(gVSS·h)和90.74mg/(gVSS·h).高通量测序结果表明,投加蛋壳微载体的颗粒污泥中富集了更高丰度的硝化菌(Nitrosomonas)以及EPS产生菌(如Comamonadaceae__unclassified)等.

关键词：硝化颗粒污泥蛋壳微载体快速培养

Composition dependence of giant electrocaloric effect in PbxSr1-xTiO_(3) ceramics for energy-related applications

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Journal of Materiomics 2019年第1期5卷 118-126页

作者： Peng-Zu Ge Xiao-Dong Jian Xiong-Wei Lin Xin-Gui tang Zhi Zhu Qiu-xiang Liu Yan-Ping jiang Tian-Fu Zhang sheng-Guo Lu School of Physics and Optoelectric Engineering Guangdong University of TechnologyGuangzhou Higher Education Mega CentreGuangzhou510006China School of Materials and Energy Guangdong University of TechnologyGuangzhou Higher Education Mega CentreGuangzhou510006China

Pb_(x)Sr_(1-x)TiO_(3)(x=0.30,0.35,0.40,0.45,0.50 and 0.55)ceramics were fabricated by a solid-state reaction *** diffraction data at room temperature show PST samples shift from cubic to tetragonal phase with the increase of Pb^(2+) *** microstructures were observed by scanning electron *** measurement was employed to investigate the ferroelectriceparaelectric phase transition *** dependent polarizationeelectric field hysteresis loops were conducted to study the electrocaloric effect(ECE)of the ferroelectric ceramics by indirect methods over a wide temperature *** measurement of temperature change(DT)at room temperature for all samples can achieve 0.79e1.86 ***'s more,a giant ECE(△T=2.05 K,EC strength(△T/△E)=0.51×10^(-6) K m/V,under 40 kV/cm)was obtained in the sample of x=0.35 near phase transition *** results suggest that the ceramics are promising cooling materials with excellent EC properties for energy related applications.

关键词： Pb_(x)Sr_(1-x)TiO_(3)ceramics Electrocaloric effect Phase transition Energy applications

Bright White Organic Light-emitting Device Based on 1,2,3,4,5,6-Hexakis(9,9-diethyl-9H-fluoren-2-yl)benzene

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Chemical Research in Chinese Universities 2009年第4期25卷 590-594页

作者： MA Tao YU Jun-sheng LOU Shuang-ling tang Xiao-qing jiang Ya-dong ZHANG Qing State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Information University of Electronic Science and Technology of China Chengdu 610054 P. R. China Department of Polymer Science School of Chemistry and Chemical Technology Shanghai Jiaotong University Shanghai 200240 P. R. China

Organic light-emitting devices（OLEDs） with the structure of indium-tin-oxide（ITO）/N,N＇-bis-（1-naphthyl）-N,N＇-diphenyl-（1,1＇-biphenyl）-4,4＇-diamine（NPB）/2,9-dimenthyl-4,7-diphenyl-1,10-phenanthroline（BCP）/tris（8-hydroxyquinoline）aluminum（Alq3）/Mg：Ag or that of ITO/NPB/1,2,3,4,5,6-hexakis（9,9-diethyl-9H-fluoren-2-yl）benzene（HKEthFLYPh）/Alq3/Mg：Ag were *** light emission was achieved with the two devices when the thicknesses of BCP and HKEthFLYPh were 1.5 nm（device B） and 5 nm（device Ⅱ）,*** obvious difference was that the EL spectrum of device Ⅱ was not sensitive to the thickness of HKEthFLYPh compared to that of BCP ***,the maximum luminance of device Ⅱ was about 1000 cd/m^2 higher than that of device B at a forward bias of 15 V,and it exhibited a maximum power efficiency of 1.0 lm/W at 5.5 V,which is nearly twice that of device *** performance of device Ⅱ using a novel star-shaped hexafluorenylbenzene organic material was improved compared with that of BCP.

关键词： Organic light-emitting diode Star-shaped hexafluorenylbenzene White light BCP Energy transfer

几种变差函数在找矿实践中的应用比较——以甘肃北山地区红尖兵山金矿找矿为例

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甘肃地质 2024年第2期33卷 43-51页

作者：刘胜江徐磊王宇昊张为唐文轶甘肃省地质调查院甘肃兰州730000 兰州大学地质科学与矿产资源学院甘肃兰州730000 成都理工大学四川成都610059

地球化学勘查是开展矿产勘查工作的常用手段之一。地球化学勘查数据一体化处理系统运用变差函数对原始地球化学数据进行网格化插值,将离散的点信息转换为连续的面信息,最终呈现为等值线图即地球化学图。本文以甘肃北山地区红尖兵山土壤... 详细信息

地球化学勘查是开展矿产勘查工作的常用手段之一。地球化学勘查数据一体化处理系统运用变差函数对原始地球化学数据进行网格化插值,将离散的点信息转换为连续的面信息,最终呈现为等值线图即地球化学图。本文以甘肃北山地区红尖兵山土壤地球化学测量Au元素数据为例,应用一体化系统提供的5种变差函数,制作了相应的Au元素地球化学图。旨在通过应用不同变差函数进行数据处理后,对其数据学指标如插值数量、平均值、标准离差、残差、均方根预测误差等进行定量比较,同时运用残差分析法验证其合理性,结合研究区金矿成矿规律和空间分布特征,探讨适合研究区地球化学勘查数据处理的变差函数模型。定量和定性对比一体化系统提供的5种变差函数,认为距离为幂的指数加权变差函数制作的Au元素地球化学图符合研究区金成矿地质条件和成矿规律,能有效地指导研究区金矿找矿工作。

关键词：地球化学勘查地球化学图变差函数残差分析红尖兵山

Novel alternative splicing of GABA receptor RDL exon 9 from Laodelphax striatellus modulates agonist potency

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Insect Science 2021年第3期28卷 757-768页

作者： Jie jiang Li-Xin Huang Feng Chen Cheng-Wang sheng Qiu-tang Huang Zhao-Jun Han Chun-Qing Zhao Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests College of Plant ProtectionNanjing Agricultural UniversityNanjingChina College of Plant Protection Anhui Agricultural UniversityHefeiChina

The resistance to dieldrin gene(RDL)encodes the primary subunit of the insect ionotropic y-aminobutyric acid(GABA)receptor(GABAR),which is the target of phenylpyrazole and isoxazoline *** splice variants in exons 3 and 6 of RDL,which have been widely explored in many insects,modulate the agonist potency of the homomeric RDL GABAR and potentially play an important role in the development of *** the present study,four splice variants of exon 9 were identified in RDL of the small brown planthopper,Laodelphax striatellus(LsRDL),resulting in LsRDL-9sl,LsRDL-92l\LsRDL-9b,and ***-9a has one more amino acid(E,glutamic acid)compared with LsRDL-9a\and LsRDL-9b lacked two amino acids and had seven different amino acids compared with ***-electrode voltage-clamp recording on LsRDLs expressed in Xenopus oocytes showed that alternative splicing of exon 9 has significant impact on LsRDL sensitivity to the agonists GABA and 0-alanine,whereas no significant difference was observed in the potencies of the non-competitive antagonists(NCAs)ethiprole and fluralaner on the splice *** results suggest that alternative splicing of RDL exon 9 broadens functional capabilities of the GABAR in *** by influencing the action of GABA.

关键词： alternative splicing exon 9 GABA receptor Laodelphax striatellus^RDL

Ultrasound-assisted Extraction of Kamebakaurin from Rabdosia excisa by Response Surface Methodology

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Chemical Research in Chinese Universities 2013年第6期29卷 1072-1077页

作者： tang Jian MA Rui-li LI Qian-qian jiang Chun-bao CHEN Rui OUYANG Zhen CHEN Hai-sheng School of Pharmacy Jiangsu University Zhenjiang 212013 P.R.China School of Pharmacy Second Ministry Medical University Shanghai 200433 R R. China College of Material Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 310036 P. R. China

For the efficient extraction of kamebakaurin（KA）, the ultrasound-assisted extraction（UAE） of KA from Rabdosia excisa（R, excisa） via response surface methodology（RSM） was investigated with high-performance liquid chromatography（HPLC）. Effects of the experimental parameters such as extraction solvent, ratio of liquid to plant material, extraction time and extraction temperature on the extracting efficiency of KA from R. excisa were evaluated, and the purity of KA in residual was calculated. The optimized conditions were 65.5%（volume fraction） acetone, 35 ℃, time of 24.6 min with ultrasound of 80 W/L, 40 kHz, ratio of liquid to plant material at 30：1（mL/g）. The maximum yield of KA is 0.708 mg/kg, with mean purity of 6.09%, indicating that ultrasound-assisted extraction is a feasible and useful method for extracting KA from R. excisa.

关键词： Ultrasound-assisted extraction Kamebakaurin Rabdosia excisa Response surface methodology

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海南鼠戊型肝炎病毒基因遗传进化分析

海南医学院学报 2024年第20期30卷 1521-1526页

作者：汤婷田秀颖邓宛心李子涵杨聘雷胜杜江尹飞飞崔秀吉海南医学院基础医学与生命科学学院热带病转化医学教育部重点实验室海南医学院-香港大学热带传染病联合实验室海南医学院第一附属医院重大疾病生物样本资源海南省工程研究中心海南海口571199 中国医学科学院病原生物学研究所北京100005

目的:戊型肝炎病毒(hepatitis E virus,HEV)属于戊型肝炎病毒科(Hepeviridae),包括四个属,即HEV-A、-B、-C和-D。HEV是一种正单链,长约7 kb的裸露RNA病毒,可以引起急、慢性戊型肝炎,特别是孕妇感染HEV后死亡率较高。目前,普遍认为只有HE... 详细信息

目的:戊型肝炎病毒(hepatitis E virus,HEV)属于戊型肝炎病毒科(Hepeviridae),包括四个属,即HEV-A、-B、-C和-D。HEV是一种正单链,长约7 kb的裸露RNA病毒,可以引起急、慢性戊型肝炎,特别是孕妇感染HEV后死亡率较高。目前,普遍认为只有HEV-A对人类具有致病性。然而,近期在中国香港、西班牙和中非等地区陆续报告由HEV-C,即鼠戊型肝炎病毒感染引起的戊型肝炎病例,说明HEV-C也是一种人兽共患病毒,可传染于人类。在前期工作中,课题组从海南省澄迈县捕获的褐家鼠粪便中检测到了HEV-C基因部分片段。为进一步了解海南HEV-C基因分子特征,本研究中扩增了HEV-C全长基因,并对其进行了系统发育分析。方法:使用Trizol试剂从海南省澄迈县捕获的褐家鼠粪便中分离HEV RNA,并利用Oligo dT引物进一步转录合成cDNA。接着用PCR方法扩增HEV的四个ORF区,并用Sanger法测序,拼接全长HEV基因。利用MEGA X软件的Clustal W方法与参考序列进行比对,并构建系统进化树。结果:通过系统进化树分析发现本研究中扩增的HEV-C为C1型,与广东省湛江市褐家鼠中发现的HEV-C1(基因号:LC549184)的同源性是93.1%,但与我国云南省、香港特别行政区和湖北省等地区的同源性比较远,分别为65.7%、65.9%、85.4%。结论:本研究首次针对海南省褐家鼠携带HEV-C1全长基因进行了系统进化分析。该研究结果提示海南省存在HEV-C的鼠-人传播的潜在风险。因此,应继续控制鼠类的同时,也应预防鼠HEV传染人类的风险。

关键词：肝炎啮齿类动物鼠戊型肝炎病毒海南