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Sorbitol Hydrogenolysis to Glycols over Baisic Additive Promoted Ni-based Catalysts

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Chinese Journal of Chemical Physics 2015年第3期28卷 338-344,I0002页

作者： Xiao-feng Cao Qi Zhang Dong Jiang Qi-ying liu Long-long Ma Tie-jun Wang de-bao li State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 China CAS Key Laboratory of Renewable Energy Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Guangzhou 510540 China University of Chinese Academy of Sciences Beijing 100049 China

A series of Ni based catalysts with different supports and basic additives were prepared by sequential impregnation method. The catalysts were characterized by XRD, BET, H2-TPR and CO2-TPD techniques. It was found that the introduction of basic additives enhanced the basicities of catalyats and promoted the dispersities of Ni particles by strong interaction between Ni2＋ and basic additives. Among the Ni based catalysts, 10%Ni/10%La203/ZrO2 showed the superior performance in sorbitol hydrogenolysis. The synergistic effect of Ni and La203 was proven to play an essential role in selective synthesis of EG and 1,2-PG. In the optimal reaction condition, the catalyst presented 100% sorbitol conversion and over 48% glycols （EG and 1,2-PG） yield. The kinetics study of polyols （sorbitol, xylitol and glycerol） hydrogenolysis showed that polyols with more hydroxyl number have higher activity and products distribution was final results of kinetic balance, which could give us some inspiration abeut how to change the products selectivity.

关键词： Sorbitol hydrogenolysis Glycols Ni catalyst Support Base promoter

Molecular Characterization of Anisotropic Musielak–Orlicz Hardy Spaces and Their Applications

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Acta Mathematica Sinica,English Series 2016年第11期32卷 1391-1414页

作者： bao de li Xing Ya FAN Zun Wei FU Da Chun YANG College of Mathematics and System Science Xinjiang University department of Mathematics Linyi University School of Mathematical Sciences Beijing Normal UniversityLaboratory of Mathematics and Complex SystemsMinistry of Education

Let A be an expansive dilation on Rnand φ:Rn× [0,∞)→[0,∞) an anisotropic Musielak–Orlicz *** HAφ(Rn) be the anisotropic Hardy space of Musielak–Orlicz type defined via the grand maximal *** this article,the authors establish its molecular characterization via the atomic characterization of HAφ(Rn).The molecules introduced in this article have the vanishing moments up to order s and the range of s in the isotropic case(namely,A:=2In×n) coincides with the range of well-known classical molecules and,moreover,even for the isotropic Hardy space Hp(Rn)with p∈(0,1](in this case,A:=2In×n,φ(x,t) :=tpfor all x∈Rnand t∈[0,∞)),this molecular characterization is also *** an application,the authors obtain the boundedness of anisotropic Calderón–Zygmund operators from HAφ(Rn) to Lφ(Rn) or from HAφ(Rn) to itself.

关键词： Anisotropic expansive dilation Muckenhoupt weight Musielak–Orlicz function Hardy space molecule anisotropic Calderón–Zygmund operator

Nitrate Leaching in an Irrigated Wheat-Maize Rotation Field in the North China Plain

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Pedosphere 2005年第2期15卷 196-203页

作者： ZHANGYu-Ming HUChun-Sheng ZHANGJia-bao CHENde-li liXiao-Xin InstituteofGeneticanddevelopmentalBiology ChineseAcademyofSciencesShijiazhuang050021（China） InstituteofSoilScience ChineseAcademyofSciencesNanjing210008（China） departmentofResourceManagementandHorticulture InstituteofLandandFoodResourcetheUniversityofMelbourneParkville3052Victoria（Australia）

Soil water deep drainage and nitrate (NO-3) leaching losses below the root zone were investigated in a 1 ha wheat-maize rotation field under traditional agricultural management that local farmers generally follow in the North China Plain, using the soil water balance method and NO3-N concentration in suction samples. Water drainage, and NO3-N distribution and leaching losses exhibited pronounced spatial and temporal variability. Soil water deep drainage and NO3-N leaching loss mostly occurred during the sum…

关键词： deep drainage nitrate leaching soil water

Virtual reality system for diagnosis and therapeutic planning of cerebral aneurysms

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Chinese Medical Journal 2010年第16期123卷 2206-2210页

作者： MO Da-peng bao Sheng-de li liang YI Zhi-qiang ZHANG Jia-yong ZHANG Yang department of Neurosurgery Peking University First HospitalBeijing 100034 China

Background The virtual reality （VR） system can provide the neurosurgeon to intuitively interact with and manipulate the three dimensional （3-D） image similarly to manipulate a real *** was seldom reported that the system was used in diagnosis and treatment of cerebral *** study aimed to investigate the application of VR system in diagnosis and therapeutic planning of cerebral *** A total of 24 cases of cerebral aneurysms were enrolled in this study from 2006 to 2008, which diagnosed by 3-D digital subtraction angiography （3D-DSA） or VR-based computed tomography angiographies （CTA）.The VR system and 3D-DSA system were used to observe and measure aneurysms and the adjacent *** data of observation and measurements were compared between VR image and 3D-DSA *** the patients underwent surgical plan and simulated neurosurgical procedures in the VR *** There were 28 aneurysms detected in VR system and 3D-DSA *** VR system generated clear and vivid 3-D virtual images which clearly displayed the location and size of the aneurysms and their precise anatomical spatial relations to the parent arteries and *** location, size and shape of the aneurysms and their anatomical relationship with the adjacent vessels were similar between 3-D virtual image and 3D-DSA, but the spatial relationship between aneurysms and skull only been displayed by VR *** VR system also could simulate simple surgical procedures and surgical *** The VR system can provide a highly effective way to provide precise imaging details as same as 3D-DSA system and assist the diagnosis of cerebral aneurysms with virtual 3-D data based on *** significantly enhances the chosen therapeutic strategy of cerebral aneurysms.

关键词： intracranial aneurysm angiography, digital subtraction computed tomographic angiography virtual reality images, surgical planning

Identification of anrF gene, a homology of admM of andrimid biosynthetic gene cluster related to the antagonistic activity of Enterobacter cloacae B8

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World Journal of Gastroenterology 2005年第39期11卷 6152-6158页

作者： Xu-Ping Yu Jun-li Zhu Xue-Ping Yao Shi-Cheng He Hai-Ning Huang Wei-liang Chen Yong-Hao Hu de-bao li Veterinary Medicine department Animal Science College Zhejiang University Hangzhou 310029 Zhejiang Province China Institute of Biotechnology Zhejiang University Hangzhou 310029Zhejiang Province China College of Food Science Biotechnology and Environmental Engineering Zhejiang Gongshang University Hangzhou 310035 Zhejiang Province China Veterinary Medicine department Animal Science College Gansu Agricultural University Lanzhou 730070 Gansu Province China

AIM： To identify the gene （s） related to the antagonistic activity of Enterobacter cloacae B8 and to elucidate its antagonistic mechanism. METHODS： Transposon-mediated mutagenesis and tagging method and cassette PCR-based chromosomal walking method were adopted to isolate the mutant strain （s） of B8 that lost the antagonistic activity and to clone DNA fragments around Tn5 insertion site. Sequence compiling and open reading frame （ORF） finding were done with DNAStar program and homologous sequence and conserved domain searches were performed with BlastN or BlastP programs at ***. To verify the gene involved in the antagonistic activity, complementation of a full-length clone of the anrFgene to the mutant B8F strain was used. RESULTS： A 3 321 bp contig around the Tn5 insertion site was obtained and an ORF of 2 634 bp in length designated as anrFgene encoding for a 877 aa polyketide synthase-like protein was identified. It had a homology of 83% at the nucleotide level and 79% ID/87% SIM at the protein level, to the admM gene of Pantoea agglomerans andrimid biosynthetic gene cluster （AY192157）. The Tn5 was inserted at 2 420 bp of the gene corresponding to the COG3319 （the thioesterase domain of type I polyketide synthase） coding region on BSF. The antagonistic activity against Xanthomonas oryzae pv. oryzae was resumed with complementation of the full-length anrFgene to the mutant B8F. CONCLUSION： The anrFgene obtained is related to the antagonistic activity of BS, and the antagonistic substances produced by B8 are andrimid and/or its analogs.

关键词： Enterobacter doacae 138 Antagonistic mechanism anrFgene Andrimid biosynthetic gene cluster

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隔河岩水库二氧化碳通量时空变化及影响因素

环境科学 2017年第3期38卷 954-963页

作者：赵登忠谭德宝李翀申邵洪长江水利委员会长江科学院武汉430010 中国长江三峡集团公司北京100038

随着气候变化研究的深入,大型河流拦截工程对水域碳循环及温室气体交换的影响引起越来越多的关注.为了评估河流拦截工程对水域生态系统碳循环和二氧化碳交换通量时空分布模式的影响,选择清江隔河岩水库作为典型案例,采用在线分析仪与浮... 详细信息

随着气候变化研究的深入,大型河流拦截工程对水域碳循环及温室气体交换的影响引起越来越多的关注.为了评估河流拦截工程对水域生态系统碳循环和二氧化碳交换通量时空分布模式的影响,选择清江隔河岩水库作为典型案例,采用在线分析仪与浮箱相结合的方法,在2015年3月至2016年2月期间开展了完整水文年连续观测实验,获取了水库坝前、上游、支流、消落带与库湾等典型区域二氧化碳通量数据.数据分析结果表明隔河岩水库水气界面二氧化碳平均通量为(55.691 8±66.332 9)mg·(m2·h)-1,呈现年内冬季高其他季节低的时间变化规律,空间上则表现为水库消落带坝前较低、典型库湾区域较高的分布格局.作为水库背景的库尾断面渔峡口区域二氧化碳通量季节变化非常稳定,在大部分时间内反而高于坝前和消落带断面的二氧化碳通量.数据分析表明二氧化碳通量时空分布格局受到水温、pH值和水体碳浓度的显著影响,但其相关程度受到季节和蓄水的双重影响.

关键词：清江流域隔河岩水库水库碳循环二氧化碳通量时空变化规律

内蒙古额吉淖尔盐碱湖一株产视紫红质的极端嗜盐古菌的分离及其bop基因核心序列及最适生长条件的分析

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科学技术与工程 2014年第13期22卷 11-15页

作者：宋倩韩瑞宝力德内蒙古农业大学生命科学学院呼和浩特010018

从内蒙古额吉淖尔湖分离得到一株产视紫红质的极端嗜盐古菌,初步鉴定为属于Natrinema属,并扩增出了其bop基因,该bop基因序列已在Genbank中注册,编号为KF863690,分析了其核心序列。结果表明bop基因开放阅读框为303 bp,编码101个氨基酸。b... 详细信息

从内蒙古额吉淖尔湖分离得到一株产视紫红质的极端嗜盐古菌,初步鉴定为属于Natrinema属,并扩增出了其bop基因,该bop基因序列已在Genbank中注册,编号为KF863690,分析了其核心序列。结果表明bop基因开放阅读框为303 bp,编码101个氨基酸。blastp结果表明该蛋白属于Bac-rhodopsin蛋白家族,具有典型的细菌视紫红质蛋白结构域。利用BLAST进行相似性分析发现bop编码蛋白氨基酸序列与Genbank中编号AAS87571.1、WP-007110705和AFB77278.1的视紫红质蛋白相似性达到98%以上。此结果表明视紫红质蛋白在细菌及古菌中结构上具有很高的保守性,与其质子泵功能紧密相关。。最后分析了该菌株的最适生长条件。该菌株在分离培养基中适宜生长的NaCl浓度范围为1.0～3.0 mol/L,适宜生长pH为6.5～8.5,适宜生长镁离子浓度为0.4～0.8 mol/L。通过分析比较得出该嗜盐古生菌株生长最适NaCl盐浓度为1.5 mol/L,最适pH为7.5,最适镁离子浓度为0.4 mol/L。该实验结果为今后进一步研究产视紫红质的极端嗜盐古生菌株的生理生化特征及遗传学特征奠定了基础。

关键词：极端嗜盐古菌 bop基因细菌视紫红质最适生长条件

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扩张矩阵的广义二进方体的一些性质

数学学报（中文版） 2018年第6期61卷 925-932页

作者：廖敏峰李波孙瑞瑞李宝德新疆大学数学与系统科学学院

本文给出了A进方体满足嵌套性质的一个充分条件,得到了A进方体的一个覆盖定理,探讨了A进方体与相关于扩张矩阵A的Christ-二进方体的关系.

关键词：各向异性扩张矩阵二进方体

Quantum public-key crypto via EPR pairs

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 58-63页

作者： Xiang-Qun Fu Hong-Wei li Jian-Hong Shi Tan li Wan-Su bao Henan Key Laboratory of Quantum Information and Cryptography Information Engineering University Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China

With the development of quantum computing technology, quantum public-key cryptography is gradually becoming an alternative to the existing classical public-key cryptography. This paper designs a quantum trapdoor one-way function via EPR pairs and quantum measurements. Based on this, a new quantum public-key cryptosystem is presented, which offers forward security,and can resist the chosen-plaintext attack and chosen-ciphertext attack. Compared with the existing quantum public-key cryptos,eavesdropping can be automatically detected in this new quantum public-key cryptosystem under a necessary condition, which is also detailed in the paper.

关键词： quantum public-key crypto trapdoor one-way function EPR pairs