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Reactive Extraction of L-valine with Di(2-ethylhexyl) Phosphate Acid

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Reactive Extraction of L-valine with Di(2-ethylhexyl) Phosph...

The genome of Magnolia biondii Pamp. provides insights into the evolution of Magnoliales and biosynthesis of terpenoids

河南省化学会2016年学术年会

作者： Huihua Bai linzhou li Zhixiang Chang Deliang li Institute of Environmental and Analytical Sciences College of Chemistry and Chemical EngineeringHenan University

Amino acids, the main components of proteins and enzymes, has been significantly increased for its extensive use, and series of encouraging results have been obtained with the establishment of the reactive extraction of amino acids. Although several researchers have studied the extraction of amino acids from the aqueous solution, few works on separating L-valine by this technique have been *** reactive extraction of L-valine with di(2-ethylhexyl) phosphate acid(D2EHPA) has been studied detailedly in this paper. The key factors that affect the extraction equilibrium distribution, including the types of extraction diluents, p H value, the concentrations of L-valine and extracting agents have been discussed. The expression of equilibrium distribution ratio is also proposed. Through investigating the extraction kinetics in the temperature range between 5-40 °C for 0.5-2.5 h, Conclusions can be drawn that D2 EHPA is the best extractant at 25 °C with the extraction time of 1.5 h, which are selected as optimized conditions. Moreover, the distribution of extraction equilibrium rose to the highest value when D2 EHPA combined with 1-octanol at p Heq around 2.6. Meanwhile, the extraction mechanism is also analyzed by the Fourier infrared spectrum. It is found that the reactive extraction of L-valine by D2 EHPA is mainly driven by the ion-exchange with forming the(1:1) complex. The established of model confirms the reliability of the experimental data. Good experimental results have been got by investigating the conditions of extraction L-valine with di(2-ethylhexyl) phosphate acid. Moreover,these results could provide preliminary experimental data and theoretical basis for the separation from aqueous solutions, as well as the recovery from effluents.

关键词： L-valine reactive extraction di(2-ethylhexyl) phosphate acid

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Horticulture Research 2021年第1期8卷 552-564页

作者： Shanshan Dong Min liu Yang liu Fei Chen Ting Yang Lu Chen Xingtan Zhang Xing Guo Dongming Fang linzhou li Tian Deng Zhangxiu Yao Xiaoan Lang Yiqing Gong Ernest Wu Yaling Wang Yamei Shen Xun Gong Huan liu Shouzhou Zhang Laboratory of Southern Subtropical Plant Diversity Fairy Lake Botanical GardenShenzhen&Chinese Academy of SciencesShenzhen 518004China State Key Laboratory of Agricultural Genomics BGI-ShenzhenShenzhen 518083China Nanjing Forestry University Nanjing 210037China Fujian Agriculture and Forestry University Fuzhou 350000China University of British Columbia Vancouver BCCanada Xi’an Botanical Garden Xi’an 710061China Zhejiang Agriculture and Forestry University Hangzhou 311300China Kunming Botanical Garden Chinese Academy of SciencesKunming 650201China Department of Biology University of CopenhagenDK-2100 CopenhagenDenmark

Magnolia biondii Pamp.(Magnoliaceae,magnoliids)is a phylogenetically,economically,and medicinally important ornamental tree species widely grown and cultivated in the north-temperate regions of *** the genome sequence of *** would help resolve the phylogenetic uncertainty of magnoliids and improve the understanding of individual trait evolution within the Magnolia *** assembled a chromosome-level reference genome of *** using~67,~175,and~154Gb of raw DNA sequences generated via Pacific Biosciences single-molecule real-time sequencing,10X Genomics Chromium,and Hi-C scaffolding strategies,*** final genome assembly was~2.22Gb,with a contig N50 value of 269.11 kb and a BUSCO complete gene percentage of 91.90%.Approximately 89.17%of the genome was organized into 19 chromosomes,resulting in a scaffold N50 of *** genome contained 47,547 protein-coding genes,accounting for 23.47%of the genome length,whereas 66.48%of the genome length consisted of repetitive *** confirmed a WGD event that occurred very close to the time of the split between the Magnoliales and *** enrichment of the Magnolia-specific and expanded gene families highlighted genes involved in the biosynthesis of secondary metabolites,plant–pathogen interactions,and responses to stimuli,which may improve the ecological fitness and biological adaptability of the *** analyses revealed a sister relationship of magnoliids and Chloranthaceae,which are sister to a clade comprising monocots and *** genome sequence of *** could lead to trait improvement,germplasm conservation,and evolutionary studies on the rapid radiation of early angiosperms.

关键词： evolution sister resolve

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SQS的二次跃迁与死区的测量

核技术 1989年第6期12卷 317-322页

作者：王临洲李黎力中国科学院高能物理研究所

本文测量了正比区、饱和雪崩区和SQS区的气体放大特性曲线;测量了SQS工作模式的二次跃迁;测量了不同气体和比份时死区的大小,并对以SOS模式工作的探测器作了寿命试验。

关键词：气体探测器二次跃迁死区溅蚀

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净化挥发性有机物生物滤塔填料研究进展

环境科学与技术 2020年第9期43卷 52-58页

作者：李林洲颜玉玺金博强付亚男朱仁成李顺义郑州大学生态与环境学院河南郑州450001

大多数挥发性有机物(VOCs)对人体健康有毒有害,同时会引发严重的环境问题。生物滤塔作为一种环保、经济的净化技术在VOCs处理方面应用越来越广泛。其中填料是影响生物滤塔处理能力和运行性能的关键因素,在整个技术中起着重要作用。近年... 详细信息

大多数挥发性有机物(VOCs)对人体健康有毒有害,同时会引发严重的环境问题。生物滤塔作为一种环保、经济的净化技术在VOCs处理方面应用越来越广泛。其中填料是影响生物滤塔处理能力和运行性能的关键因素,在整个技术中起着重要作用。近年来填料的研究发展迅速,已从单一的无机和有机填料发展到复合填料的使用。该文介绍了生物填料净化机理,分析了不同类型填料的特点,并对填料改进和改性以及废弃填料再利用等相关研究进行展望,为今后生物填料的改进提出建议和指引方向。

关键词：填料生物滤塔废气处理缓释技术固定化

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正比室一些特性的研究

核技术 1984年第1期 26-31页

作者：王临洲李黎力中国科学院高能物理研究所

本文描述了簇射计数器中的正比室模型。研究了正比室所使用的气体CH4/Ar和Co2/Ar的特性。使用55FeX射线源研究了气体放大系数和能量分辨率与气体成份和丝直径的关系。也给出了正比室坪特性与气体成份的关系。关于55FeX射线谱的两个峰,... 详细信息

本文描述了簇射计数器中的正比室模型。研究了正比室所使用的气体CH4/Ar和Co2/Ar的特性。使用55FeX射线源研究了气体放大系数和能量分辨率与气体成份和丝直径的关系。也给出了正比室坪特性与气体成份的关系。关于55FeX射线谱的两个峰,提出了与文献[4]不同的解释。

关键词：簇射计数器正比室气体放大系数能量分辨率坪特性

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全吸收型铅玻璃切仑柯夫计数器

核技术 1981年第5期 9-14页

作者：李焕铁王临洲李黎力周月华朱永生中国科学院高能物理研究所

本文主要叙述用ZF1型铅玻璃作的全吸收型铅玻璃切仑柯夫计数器及其性能和实验结果,同时亦找出用宇宙射线μ子进行能量刻度的经验途径。

关键词：铅玻璃厚度铅硅酸盐玻璃计数器记录仪吸收型

Growth and Characterization of Crystal

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Chinese Journal of Structural Chemistry 2002年第6期21卷 637-639页

作者： linzhou－Bin HUZu－Shu 等 StateKeyLaboratoryofStructuralChemistry FujianInstituteofResearchontheStructureofMatterTheChineseAcademyofSciencesFuzhouFujian350002China StateKeyLaboratoryofStructuralChemistry FujianInstituteofR

The crystal of Nd(0.06)Y(0.94)S(r)6Sc(BO3)(6) with the dimensions up to 35 mm x 28 mm x 13 mm was grown by a top-seeded solution growth method from li6B4O9 flux. The grown crystal was characterized by X-ray powder diffraction. The optical absorption of the crystal shows that it has a strong absorption band at 8070 Angstrom, and the absorption coefficient is 2.17cm(-1) with a FWHM of 41 Angstrom, which can match with the wavelength of the diode-laser (LD) and is suitable for the LD pumping. Based on the Judd-Ofelt theory, the three parameters of line oscillator strength Omega((lambda)) (lambda = 2, 4 and 6) of the Nd3+ ion in the crystal were calculated as follows: Omega(2) = 1.194 x 10(-20), Omega(4) = 4.186 x 10(-20) and Omega(6) = 3.351 x 10(-20) cm(2), Which are relatively larger. The results indicate that the crystal Nd0.06Y0.94Sr6Sc(BO3)(6) may be a kind of high-efficient laser material for diode-pumped.

关键词： Nd0.06Y0.94Sr6Sc(BO3)(6) crystal crystal growth X-ray powder diffraction absorption spectrum

PROG1 acts upstream of LAZY1 to regulate rice tiller angle as a repressor

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The Crop Journal 2023年第2期11卷 386-393页

作者： Han Zhang Xiang li Dajun Sang linzhou Huang Yuqi Song Mengchen Du Jiajia Cao Wenguang Wang State Key Laboratory of Crop Biology College of Life SciencesShandong Agricultural UniversityTai’an 271018ShandongChina Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Rice tiller angle,as a component of plant architecture,affects rice grain yield via plant ***,the molecular mechanism underlying rice tiller angle remains *** report that the key domestication gene PROSTRATE GROWTH 1(PROG1)controls rice tiller angle by regulating shoot gravitropism and LAZY1(LA1)-mediated asymmetric distribution of *** as a transcriptional repressor,PROG1 negatively regulates the expression of LA1 in light-grown rice *** of LA1 partially rescued the larger tiller angle of the PROG1 complementation transgenic plant(prog1-D).Double-mutant analysis showed that PROG1 acts upstream of LA1 to regulate shoot gravitropism and tiller *** of Suppressors of lazy1(SOL1),encoding DWARF3(D3)acting in the strigolactone signal pathway,suppressed the large tiller angle of prog1-D by rescuing the transcription of *** discovery of a light-sensitive PROG1-LA1 transcription regulatory module controlling rice shoot gravitropism and tiller angle sheds light on the genetic control of rice tiller angle.

关键词： Rice Tiller angle Gravitropism LAZY1 PROG1

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污泥调理添加药品的优化研究

广州化工 2024年第21期52卷 172-174页

作者：周非龚靖云刘海峰邹沛君樊世飞石庆龙兰川李林洲重庆水务集团龙兴排水有限公司重庆401133

污泥调理是污水处理过程中的重要步骤。重庆某污水处理厂设计污水处理能力4万t/d,采用A^(2)/O工艺,出水水质达到GB181918-2002一级A标。污泥通过板框高压压滤机脱水后外运处置。板框压滤机设备故障较为频繁,产泥率较低,药耗较高。该厂... 详细信息

污泥调理是污水处理过程中的重要步骤。重庆某污水处理厂设计污水处理能力4万t/d,采用A^(2)/O工艺,出水水质达到GB181918-2002一级A标。污泥通过板框高压压滤机脱水后外运处置。板框压滤机设备故障较为频繁,产泥率较低,药耗较高。该厂的调理池使用的污泥调理剂是氧化钙和三氯化铁,其中氧化钙单耗142 kg/t左右,三氯化铁用量49 kg/t左右,存在药剂使用量较多,药耗成本较高的问题。对于此,本工作开展了污泥脱水调理剂的试验,首先针对污泥调理药剂进行了优化选择对比,随后对污泥调理药品投加量的优化开展了研究。通过药品优化之后氧化钙的添加量降低了62.5%,三氯化铁用量降低了25.9%,实现了降本增效。

关键词：污泥调理板框压滤机氧化钙三氯化铁