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Chemical-looping gasification of biomass in a 10 kW_(th) interconnected fluidized bed reactor using Fe_2O_3/Al_2O_3 oxygen carrier

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燃料化学学报 2014年第8期42卷 922-931页

作者： HUSEYIN Sozen WEI Guo-qiang li hai-bin HE Fang HUANG Zhen CAS Key Laboratory of Renewable Energy Guangzhou Institute of Energy ConversionChinese Academy of Sciences (CAS)

Abstract:The aim of this research is to design and operate a 10 kW hot chemical-looping gasification(CLG)unit using Fe2O3/Al2O3as an oxygen carrier and saw dust as a *** effect of the operation temperature on gas composition in the air reactor and the fuel reactor,and the carbon conversion of biomass to CO2and CO in the fuel reactor have been experimentally studied.A total60 h run has been obtained with the same batch of oxygen carrier of iron oxide supported with *** results show that CO and H2concentrations are increased with increasing temperature in the fuel *** is also found that with increasing fuel reactor temperature,both the amount of residual char in the fuel reactor and CO2concentration of the exit gas from the air reactor are *** conversion rate and gasification efficiency are increased by increasing temperature and H2production at 870℃reaches the highest *** electron microscopy(SEM),X-ray diffraction(XRD)and BET-surface area tests have been used to characterize fresh and reacted oxygen carrier *** results display that the oxygen carrier activity is not declined and the specific surface area of the oxygen carrier particles is not decreased significantly.

关键词： chemical-looping gasification hot model biomass Fe2O3/Al2O3 dual circulating fluidized bed

Photoinduced Charge Transfer Processes of Zinc Porphyrin Derivatives for Dye-sensitized Solar Cells

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Chemical Research in Chinese Universities 2013年第5期29卷 974-981页

作者： ZHAO Yi-dan FU Jing-jing li hai-bin DONG Hao liAO Yi Department of Chemistry Capital Normal University Beijing 100048 P. R. China Institute of Chemistry for Functionalized Material College of Chemistry and Chemical Engineering Liaoning Normal University Dalian 116029 P. R. China

We studied the excitation energies of zinc porphyrin（ZnP） and zinc porphyrin analogues（ZnP-R） with long-range corrected（LC） density functional theory. We compared three recent LC functionals, wB97XD, CAM-B3LYP, LC-wPBE and functionals B3LYP with the experiments. It was lbund that the low energy excitation is well predicted for ZnP with the LC-wPBE functional based on 6-31G（d） basis set. Excited-state geometry optimiza- tions lbr all the compounds were carried out. It was shown that upon the photo-excitation nearly 1 e transferred to the acceptor unit[dodecafluorosubphthalocyanine, SubPc（F）12] and a highly polarized state formed in compound 5. But after the relaxation of the first excited state, the electron on the acceptor went back to the ZnP a little and then shifted from ZnP to the donor segment[bis（4-hexylphenyl）amino] partially. The computed excited-state radiative lifetime（r） for compound 5 is 943 μs, which shows a reasonable agreement with the experimental observation. According to the long-lived exciton in strong push-pull compound 5, we proposed that electron injection to semiconductor might occur alter vibrational relaxation of excited state.

关键词： Excitation energy Long-range corrected(LC) functional Zinc porphyrin Zinc porphyrin analogue Elec-tron injection

Treatment of polycystic liver disease with resection-fenestration and a new classification

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World Journal of Gastroenterology 2008年第32期14卷 5066-5072页

作者： Tuan-Jie li hai-bin Zhang Jun-Hua Lu Jun Zhao Ning Yang Guang-Shun Yang Eastern Hepatobiliary Hospital Second Military Medical University Shanghai 200438 China

AIM: To evaluate outcomes in patients with autosomal dominant polycyst liver disease (APLD) treated by combined hepatic resection and fenestration. A new classification was recommended to presume postoperative complications and long outcome of patients. METHODS: Twenty-one patients with APLD were treated by a combined hepatic resection and fenestration technique. All patients were reviewed retrospectively, and clinical symptoms, performance status and morbidity were recorded. A new classifi cation of APLD is recommended here. RESULTS: All patients were discharged when free of symptoms. The mean follow-up time was 55.7 mo and three patients had a recurrence of symptoms at 81, 68 and 43 mo after operation, respectively. The overall morbidity rate was 76.2%. Two patients with Type B-Ⅱ and Type B-Ⅰ developed biliary leakage. Four patients had severe ascites, including three with Type B-Ⅲ and one with Type B-Ⅱ, Nine patients had pleural effusion, including one with Type A-Ⅰ; one with Type B-Ⅰ; fi ve with Type B-Ⅱ; one with Type A-Ⅲ and one with Type B-Ⅲ. Three patients with Type B had recurrence of symptoms, while none with Type A had severe complications. CONCLUSION: Combined hepatic resection and fenestration is an acceptable procedure for treatment of APLD. According to our classifi cation, postoperative complications and long outcome can be predicted before surgery.

关键词： Autosomal dominant polycyst liverdisease Autosomal dominant polycyst kidney disease Fenestration

BMI and BMI Changes to All-cause Mortality among the Elderly in Beijing： a 20-year Cohort Study

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Biomedical and Environmental Sciences 2017年第2期30卷 79-87页

作者： WANG Yun Feng TANG Zhe GUO Jin TAO li Xin liU Long li hai bin li Di Tian GUO Xiu Hua YANG Xing Hua School of Public Health Capital Medical University Beijing 100069 China Beijing Municipal Key Laboratory of Clinical Epidemiology Beijing 100069 China School of Basic Medical Sciences Peking University Health Science Center Beijing 100191 China School of Basic Medical Sciences Peking University Health Science Center Beijing100191 China

Objective To explore the association between body mass index （BMI） and all-cause mortality among the elderly in Beijing. Methods This analysis was based on the Beijing multidimensional longitudinal study of aging （BLSA）, which included 2,090 subjects over 55 years old and was followed-up from 1992 to 2012. BMI-mortality curves were drawn to find the optimal BMI range with the lowest mortality. Cox proportional hazard models were used to obtain the hazard ratios （HRs） for BMI and BMI changes in the overall population and in specific stratified populations. Results During follow-up, 2,264 deaths were recorded; BMI-mortality curve was U-shaped, with the lowest mortality at a BMI of approximately 25 kg/m2. After adjusting for gender, age, smoking, drinking and some pre-existing diseases, HRs for underweight, overweight and obesity compared with normal weight were 2.372 （95% C/： 2.254-2.632）, 0.767 （95% CI： 0.666-0.884） and 0.872 （95% CI： 0.830-1.246）, respectively. HR for BMI drop was 3.245 （95% CI： 0.824-22.772） in the underweight group and 1.892 （95% C/： 0.830-1.246） in the normal weight group, HR for BMI rise was 1.795 （95% CI： 1.243-2.591） in normal weight group and 2.962 （95% CI： 2.202-3.203） in the overweight group. Conclusion Keeping BMI in an overweight status and stable is related to a reduced mortality

关键词： Body mass index All-cause mortality The elderly Beijing

褐色高温单孢菌PE-211纤维素酶的纯化及固定化研究

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现代化工 2007年第Z1期27卷 181-183,185页

作者：黎海彬广州城市职业学院广东广州510405

褐色高温单孢菌PE-211纤维素酶经硫酸铵盐析、2次SephadexG-100柱纯化,粗酶液被纯化47.5倍,比活力为54.15 IU/mg,以戊二醛为交联剂制备固定化酶.酶动力学研究表明,固定化酶的最适pH为8.5,最适温度为70℃,且固定化酶在60～80℃活力较高;... 详细信息

褐色高温单孢菌PE-211纤维素酶经硫酸铵盐析、2次SephadexG-100柱纯化,粗酶液被纯化47.5倍,比活力为54.15 IU/mg,以戊二醛为交联剂制备固定化酶.酶动力学研究表明,固定化酶的最适pH为8.5,最适温度为70℃,且固定化酶在60～80℃活力较高;该酶的耐热性很强,而固定化酶的热稳定性比原酶强;以羧甲基纤维素钠为底物,固定化酶的Km为7.19 mg/mL,Vmax为0.132 mg/(mL·min).

关键词：褐色高温单孢菌纤维素酶固定化

Research on the slagging characteristics of blended coals in a pilot-scale furnace

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2015年第3期16卷 204-216页

作者： Hao ZHOU Le-tian li hai-long ZHANG bin ZHOU Institute for Thermal Power Engineering Zhejiang University Hangzhou 310027 China

This paper applies digital image techniques to observe the slagging characteristics of blended coals in a pilot-scale furnace. Collected deposit samples were analyzed by scanning electron microscopy linked with energy-dispersive X-ray analysis （SEM-EDX）, X-ray diffraction （XRD）, and X-ray Fluorescence （XRF） to acquire the microstructure, chemical composition, and mineralogy. The deposit thickness of three blends was analyzed between their parent coal A （Datong） and coal B （Shan）, and we noted that the time to reach a stable stage decreased with the ratio of coal B. The addition of coal A into coal B could remarkably restrained the growth and thickness of ash deposits. The results of XRD analysis indicated the initial layer was predominantly comprised of the crystalline minerals quartz, anorthite, or albite except for coal B. All of the blends and coals contained quartz and Ca- to Al-silicates （Ca0.68Na0.32）（All.68Si0.32）Si2O8 in the slag layer where iron-bearing minerals （e.g., ilvaite） were altered into an amorphous phase. The result of SEM-EDX suggested that there was an elemental disparity between the coal ash and deposit.

关键词： Blended coal Ash deposit Slagging Charge-coupled device (CCD) camera Mineralogy

Antitumor immunopreventive and immunotherapeutic effect in mice induced by hybrid vaccine of dendritic cells and hepatocarcinoma in vivo

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World Journal of Gastroenterology 2003年第3期9卷 479-484页

作者： Jin-Kun Zhang Jun li Juan Zhang hai-bin Chen Su-Biao Chen Cancer Pathology Laboratory, Shantou University Medical College, Shantou 515031, Guangdong Province, China Cancer Pathology Laboratory Shantou University Medical College 22 Xinlinglu Shantou 515031 Guangdong Province China. jkzhang@***

AIM: To develop atumor vaccine by fusion of H22 hepatocarcinoma cells and DC, and to study its protective and therapeutical effect against H22 ***: H22-DC vaccine was produced by PEG fusion of H22 and DC induced by cytokine released from splenic mononuclear cells, sorted by CD11c magnetic microbead marker. It was injected through the tail vein of the mice and the H22-DC oncogenesis was detected in the liver, spleen and lung. In order to study the therapeutical and protective effect of H22-DC against tumor H22, two groups were divided:immune group and therapeutic group. Immune group was further divided into P, D, HD and H subgroups, immunized by PBS, DC, H22-DC and inactivated H22, respectively, and attacked by H22 cell. The tumor size, tumor weight, mice survival time and tumor latent period were recorded and statistically analyzed; Therapeutical group was divided into three subgroups of P, D and HD, and attacked by H22, then treated with PBS, DC, and H22-DC, respectively. Pathology and flow cytometry were also applied to study the mechanism how the H22-DC vaccine attacked on the H22 ***: 1. No oncogenesis was found in spleen, lung and liver after H22-DC injection. 2. Hybrid vaccine immunized mice had strongest CTL activity. 3. In the immune group,latent period was longer in HD subgroup than that in P, H and D subgroup; and tumor size and weight were smaller in HD subgroup than that in P, H and D subgroup. 4. In therapeutic group, tumor size was smaller in HD subgroup than that in P, D ***: 1. H22-DC tumor vaccine is safe without oncogenesis in vivo. 2. Hybrid vaccine can stimulate potent specific CTL activity against H22.3. H22-DC vaccine has distinctive prophylatic effect on tumor H22 and can inhibit the tumor growth.

关键词：树状细胞杂合疫苗免疫抑制免疫疗法肝细胞癌动物实验

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一种基于图割的稠密三维场景重建算法

宇航学报 2011年第7期32卷 1626-1631页

作者：徐刚刘彬李海滨燕山大学信息科学与工程学院秦皇岛066004 燕山大学电气工程学院秦皇岛066004

立体视觉技术是自主探测机器人在未知环境中获取信息的重要手段,通过对可视场景的稠密三维重建实现导航、定位及路径规划等一系列工作。本文在候选点匹配的基础上结合图割理论,首先在世界坐标系建立代表深度信息的网格节点,接着依据区... 详细信息

立体视觉技术是自主探测机器人在未知环境中获取信息的重要手段,通过对可视场景的稠密三维重建实现导航、定位及路径规划等一系列工作。本文在候选点匹配的基础上结合图割理论,首先在世界坐标系建立代表深度信息的网格节点,接着依据区域匹配算法对候选点进行初步筛选,去除大部分相关值较低的节点,建立简化的网格图,最后通过寻找图中最小割来实现能量函数的全局最小,完成稠密的三维场景重建。实验证明,相关阈值γ设为0.6时,简化网格图的重建精度和计算效率达到相对平衡。图割算法解决了候选点测量时潜在的匹配歧义问题,且对低纹理区域有较好的匹配效果。

关键词：立体视觉图割网格候选点稠密重建

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基于候选点稠密匹配的三维场景重构方法

宇航学报 2012年第1期33卷 128-133页

作者：李海滨徐刚刘彬燕山大学工业计算机控制工程河北省重点实验室秦皇岛066004 燕山大学信息科学与工程学院秦皇岛066004

针对星球探测机器人在未知环境中三维场景重建存在的计算复杂度问题,提出基于网格候选点的三目立体匹配算法。在空间中建立代表深度信息的网格节点,并对深度方向的节点分布进行合理规划,确保候选点稠密匹配的准确性和高效性。候选点匹... 详细信息

针对星球探测机器人在未知环境中三维场景重建存在的计算复杂度问题,提出基于网格候选点的三目立体匹配算法。在空间中建立代表深度信息的网格节点,并对深度方向的节点分布进行合理规划,确保候选点稠密匹配的准确性和高效性。候选点匹配解决了传统立体匹配算法中图像校正带来的实时性问题,同时采用三目视觉系统代替双目,通过另一组对应点的相似性测度对潜在歧义的少量候选点进行二次判决。实验证明,由于处理每组图像对不再需要进行极线校正,因此计算代价与传统的匹配算法相比有一定降低,而第三台摄像机有效消除了匹配歧义,计算量相对于双目系统也没有明显增加。

关键词：星球探测机器人三目立体视觉网格候选点稠密三维重构