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Parallel Data Cube Storage Structure for Range Sum Queries and Dynamic Updates

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Journal of Computer Science & Technology 2005年第3期20卷 345-356页

作者： HongGao jian-zhongli SchoolofComputerScienceandTechnology HarbinInstituteofTechnologyHarbin150001P.R.China

I/O parallelism is considered to be a promising approach to achieving highperformance in parallel data warehousing systems where huge amounts of data and complex analyticalqueries have to be processed. This paper proposes a parallel secondary data cube storage structure(PHC for short) to efficiently support the processing of range sum queries and dynamic updates ondata cube using parallel computing systems. Based on PHC, two parallel algorithms for processingrange sum queries and updates are proposed also. Both the algorithms have the same time complexity,O(log^d n/P). The analytical and experimental results show that PHC and the parallel algorithms havehigh performance and achieve optimum speedup.

关键词： data warehouse parallel processing cube range query processing

Assessing impact of intermittent window opening strategies on pathogen-laden droplet dispersion in a coach bus

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Building Simulation 2024年第7期17卷 1183-1200页

作者： Qiqi Luo Xingdong Deng jian Hang Cuiyun Ou Zhiwen Luo Xiaodan Fan Xia Yang Yifei Zhang zhongli Gu Xuelin Zhang School of Atmospheric Sciences Sun Yat-sen Universityand Southern Marine Science and Engineering Guangdong LaboratoryZhuhai 519082China Key Laboratory of Urban Meteorology China Meteorological AdministrationBeijing 100089China China Meteorological Administration Xiong'an Atmospheric Boundary Layer Key Laboratory Xiong'anChina Guangzhou Urban Planning&Design Survey Research Institute Guangzhou 510060China Guangzhou Collaborative Innovation Center of Natural Resources Planning and Marine Technology Guangzhou 510060China Guangdong Enterprise Key Laboratory for Urban Sensing Monitoring and Early WarningGuangzhou 510060China Welsh Schoolof Architecture Cardiff UniversityUK Guangdong Province Engineering Laboratory for Air Pollution Control South China Institute of Environmental Sciencesthe Ministry of Ecology and Environment of ChinaNo.7 West Street YuancunGuangzhou 510655China Guangdong Fans-tech Agro Co. LtdGuangdong ProvinceChina

Opening windows in coach buses is a practical approach to improving natural ventilation and mitigating infection risk(IR).Due to human behavior and weather conditions,the intermittent window opening strategy(IWOS)is a more common practice than keeping windows constantly *** its prevalence,there are no studies exploring IWOS specifically in *** employed indoor-outdoor coupled CFD simulations to assess the effects of various IWOS on pathogen-laden droplet(PLD)dispersion and IR in a coach bus that occurred a COVID-19 outbreak in Hunan,*** reveal that after ventilating through two skylights for 600–1800 s,opening front and rear windows(FW+RW)or FW with a wind catcher(FW+WCH)for just 40 s can reduce PLD concentration(Cave)to 5%of its initial level and the intake fraction of the infector’s neighbor(IFn)drops by 95%.Upon closing FW+RW or FW+WCH,Cave and IFn take over 580 s to return to the pre-opening ***,intermittent FW opening halves Cave and IFn within 7 min,but leads to rapid increases upon window ***,opening FW+RW and FW+WCH intermittently have pronounced impacts on indoor PLD concentration and are applicable approaches to control respiratory disease transmission in *** to the inhaled viral dose,it is recommended to open windows when driving time is over 12 minutes to reduce infection *** scenarios like epidemiological surveys and risk assessments,where assessing passenger infection risk is vital,some behaviors of opening windows cannot be overlooked and necessitate extra attention.

关键词： infection risk computational fluid dynamics air change rate per hour natural ventilation wind catcher tracer gas dispersion

Gene expression profile in liver of hB1F transgenic mice

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World Journal of Gastroenterology 2004年第20期10卷 3006-3010页

作者： Shui-LiangWang HuaYang You-HuaXie YuanWang jian-zhongli LongWang Zhu-GangWang Ji-LiangFu DepartmentofMedicalGenetics SecondMilitaryMedicalUniversityShanghai200433China StateKeyLaboratoryforMolecularBiology InstituteofBiochemistryandCellBiologyShanghaiInstitutesforBiologicalSciencesChineseAcademyofSciencesShanghai200031China ShanghaiNanfangResearchCenterforModelOrganisms Shanghai201203China

AIM: To analyze the tissue morphologic phenotype and liver gene expression profile of hBIF transgenic mice. METHODS: Transgene expression was analyzed with RT-PCR and Western blotting. For one of the transgenic mouse lines, tissue expression pattern of the transgene was also examined with immunochemical methods. Pathological analysis was used to examine the tissue morphologic phenotype of established transgenic mice. The liver gene expression profile of transgenic mice was analyzed with microchip, and some of bhe differentially expressed genes were verified with RT-PCR. RESULTS: The expressions of hBIF were shown in livers from 6 of 7 transgenic mouse lines. The overexpression of hB1F transgene did not cause pathological changes. Expressions of three genes were up-regulated, while down-regulation was observed for 25 genes. CONCLUSION: The overexpression of hBIF transgene may cause changes of gene expression profiles in the liver of transgenic mice.

关键词：基因表达肝脏 hB1F 遗传转移老鼠病理学

Establishment of transgenic mice carrying the gene of human nuclear receptor NR5A2 (hB1F)

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World Journal of Gastroenterology 2003年第6期9卷 1333-1336页

作者： Shui-LiangWang HuaYang You-HuaXie YuanWang jian-zhongli LongWang Zhu-GangWang Ji-LiangFu DepartmentofMedicalGenetics SecondMilitaryMedicalUniversityShanghai200433China InstituteofBiochemistryandCellBiology ShanghaiInstituteforBiologicalSciencesChineseAcademyofSciencesShanghai200031China ShanghaiNanfangResearchCenterforModelOrganisms Shanghai201203China

AIM: Human hepatitis B virus enhancer II B1 binding factor (hBIF) was cloned and characterized as a novel member of the Ftz-F1 (NR5A) nuclear receptor subfamily. Although progresses have recently been made, its biological function remains largely unidentified. The aim of this study was to establish an hBIF transgenic mouse model to promote the functional study of ***: Transgene fragments were microinjected into fertilized eggs of mice. The manipulated embryos were transferred into the oviducts of pseudopregnant female *** offsprings were identified by PCR and Southern blot analysis. Transgene expression was analyzed with RT-PCR and Western blot analysis. Transgenic founder mice were used to establish transgenic mouse lineages. The F1 and F2 mice were identified by PCR ***: Seven mice were identified as carrying copies of transgene. RT-PCR and Western blotting results showed that the transgene was expressed in heart, liver, lung, kidney and stomach in one of the transgenic mouse *** analysis of the transgenic mice demonstrated that the transgene was integrated into the chromosome at a single site, and was transmitted ***: In this study we established an hB1F transgenic mouse model, which will facilitate the investigation of the biological function of hB1F in vivo.

关键词：乙型肝炎病毒 hBIF NR5A 生物学功能动物模型

COVID-19 transmission and control in land public transport:A literature review

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Fundamental Research 2024年第3期4卷 417-429页

作者： Qiqi Luo Wenbing Liu Jiayuan Liao zhongli Gu Xiaodan Fan Zhiwen Luo Xuelin Zhang jian Hang Cuiyun Ou School of Atmospheric Sciences Sun Yat-sen Universityand Southern Marine Science and Engineering Guangdong LaboratoryZhuhai 519082China Key Laboratory of Urban Meteorology China Meteorological AdministrationBeijing 100089China China Meteorological Administration Xiong'an Atmospheric Boundary Layer Key Laboratory Xiong'an 070001China Key Laboratory of Tropical Atmosphere-Ocean System(Sun Yat-sen University) Ministry of EducationZhuhai 519000China Guangdong Fans-tech Agro Co. LtdYunfu 527300China Welsh School of Architecture Cardiff UniversityCardiff CF103XQUnited Kingdom

Land public transport is an important link within and between cities,and how to control the transmission of COVID-19 in land public transport is a critical issue in our daily ***,there are still many inconsistent opinions and views about the spread of SARS-CoV-2 in land public transport,which limits our ability to implement effective *** purpose of this review is to overview the literature on transmission characteristics and routes of the epidemic in land public transport,as well as to investigate factors affecting its spread and provide feasible measures to mitigate the infection risk of *** obtained 898 papers by searching the Web of Science,Pubmed,and WHO global COVID database by keywords,and finally selected 45 papers that can address the purpose of this *** public transport is a high outbreak area for COVID-19 due to characteristics like crowding,inadequate ventilation,long exposure time,and environmental *** from surface touch transmission and drop spray transmission,aerosol inhalation transmission can occur not only in short distances but also in long *** ventilation is the most important factor influencing long-distance aerosol *** transmission factors(e.g.,interpersonal distance,relative orientation,and ambient conditions)should be noticed as well,which have been summarized in this *** address various influencing factors,it is essential to suggest practical and efficient preventive *** these,increased ventilation,particularly the fresh air(i.e.,natural ventilation),has proven to effectively reduce indoor infection *** preventive measures are also effective,such as enlarging social distance,avoiding face-to-face orientation,setting up physical partitions,disinfection,avoiding talking,and so *** research on the epidemic has intensified,people have broken down many perceived barriers,but more comprehensive studies on monitoring systems and preventi

关键词： Land transportation Infection risk Transmission route Mitigation measures COVID-19

Transforming waste particles into valuable adsorbents via amyloid-mediated molecular engineering

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Science China Chemistry 2024年

作者： Qingmin Yang jian Zhao Yujia Zhang Xingyu Zhou Hao Ren Bowen Hu zhongli Lei Lixin Chen Peng Yang School of Material and Chemical Engineering Bengbu University Anhui Provincial Engineering Laboratory of Silicon-Based Materials School of Chemistry and Chemical Engineering Northwestern Polytechnical University Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an Key Laboratory of Polymeric Soft Matter School of Chemistry and Chemical Engineering Shaanxi Normal University International Joint Research Center on Functional Fiber and Soft Smart Textile School of Chemistry and Chemical EngineeringShaanxi Normal University

The high-value utilization of industrial solid waste using a facile and eco-friendly process is of great interest and significance in reducing environmental pollution and developing a green circular economy. Herein, we propose an amyloid-mediated molecular engineering strategy to transform particulate waste into valuable adsorbents for metal ions. Our method has the advantage of aqueous solution fabrication under mild conditions without the use of high-temperature hydrothermal methods and toxic chemical reagents. Amyloid-mediated molecular engineering manipulates the phase transition of bovine serum albumin（BSA）on particulate waste surfaces, resulting in a remarkable ～3.1 times improvement in the adsorption capacity of fly ash, a typical industrial solid waste for gold ions after modification with the phase-transitioned BSA（PTB）. The resultant adsorption ability was 69–1,980 times higher than those of conventional and emerging adsorbent materials such as ion exchange resins, activated carbon（AC）, covalent organic frameworks（COFs）, and metal-organic frameworks（MOFs）. We further demonstrated the application of our PTB-modified materials in the recovery of precious metals from low-grade gold ore and electronic waste leachates. Consequently, this strategy could increase the value of waste materials nearly 27 times. In addition, this method is generally extendable to other conventional industrial adsorbents such as resin, clay, and Al2O3, and enhances their adsorption capabilities at least twofold. Overall, this work provides a simple and green approach for improving the adsorption performance of solid particles, and is expected to develop into a universal strategy for transforming waste particles into high-value-added products.

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Establishment of transgenic mice carrying gene encoding human zinc finger protein 191

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World Journal of Gastroenterology 2004年第2期10卷 264-267页

作者： jian-zhongli XiaChen HuaYang Shui-LiangWang Xue-LianGong HaoFeng Bao-YuGuo LongYu Zhu-GangWang Ji-LiangFu DepartmentofMedicalGenetics SecondMilitaryMedicalUniversityShanghai200433China ShanghaiResearchCenterofBiotechnology ChineseAcademyofSciencesShanghai200233China GeneticsInstitute FudanUniversityShanghai200433China ShanghaiNanfangResearchCenterforBiomodelOrganism Shanghai201203China

AIM:Human zinc finger protein 191 (ZNF191) was cloned and characterized as a Krueppel-like transcription factor, which might be relevant to many diseases such as liver cancer,neuropsychiatric and cardiovascular diseases. Although progress has been made recently, the biological function of ZNF191 remains largely unidentified. The aim of this study was to establish a ZNF191 transgenic mouse model,which would promote the functional study of ***:Transgene fragments were microinjected into fertilized eggs of *** manipulated embryos were transferred into the oviducts of pseudo-pregnant female *** offsprings were identified by PCR and Southern blot ***191 gene expression was analyzed by *** founder mice were used to establish transgenic mouse *** first generation (F1) and the second generation (F2) mice were identified by PCR ***-week transgenic mice were used for pathological ***: Four mice were identified as carrying copies of ZNF191 *** results of RT-PCR showed that ZNF191 gene was expressed in the liver,testis and brain in one of the transgenic mouse *** analysis of transgenic mice demonstrated that ZNF191 gene was integrated into the chromosome at a single site and could be transmitted stably. Pathological analysis showed that the expression of ZNF 191 did not cause obvious pathological changes in multiple tissues of transgenic ***:ZNF191 transgenic mouse model would facilitate the investigation of biological functions of ZNF191 in vivo.

关键词： ZNF191基因蛋白合成转基因鼠克隆病理学动物模型逆转录聚合酶链反应

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糙米酵素提取物抗氧化活性作用研究

农业科技与装备 2015年第6期 60-61,64页

作者：李景松姜忠丽沈阳师范大学粮食学院沈阳110034

在发芽糙米中加入峰蜜,利用酵母发酵制备成糙米酵素,并对糙米酵素提取物的抗氧化活性进行研究。结果表明:糙米酵素提取物清除DPPH自由基、清除超氧阴离子及羟基自由基的能力较强,与常用抗氧化剂BHT相差不大。

关键词：糙米酵素提取物抗氧化性

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Integrated vacuum pressure swing adsorption and Rectisol process for CO_(2) capture from underground coal gasification syngas

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Chinese Journal of Chemical Engineering 2023年第5期57卷 265-279页

作者： jian Wang Yuanhui Shen Donghui Zhang zhongli Tang Wenbin Li The Research Center of Chemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China

An integrated vacuum pressure swing adsorption(VPSA) and Rectisol process is proposed for CO_(2) capture from underground coal gasification(UCG) syngas. A ten-bed VPSA process with silica gel adsorbent is firstly designed to pre-separate and capture 74.57% CO_(2) with a CO_(2) purity of 98.35% from UCG syngas(CH_(4)/CO/CO_(2)/H_(2)/N_(2)= 30.77%/6.15%/44.10%/18.46%/0.52%, mole fraction, from Shaar Lake Mine Field,Xinjiang Province, China) with a feed pressure of 3.5 MPa. Subsequently, the Rectisol process is constructed to furtherly remove and capture the residual CO_(2)remained in light product gas from the VPSA process using cryogenic methanol(233.15 K, 100%(mass)) as absorbent. A final purified gas with CO_(2) concentration lower than 3% and a regenerated CO_(2) product with CO_(2) purity higher than 95% were achieved by using the Rectisol process. Comparisons indicate that the energy consumption is deceased from 2.143 MJ·kg^(-1) of the single Rectisol process to 1.008 MJ·kg^(-1) of the integrated VPSA & Rectisol process, which demonstrated that the deployed VPSA was an energy conservation process for CO_(2) capture from UCG syngas. Additionally, the high-value gas(e.g., CH_(4)) loss can be decreased and the effects of key operating parameters on the process performances were detailed.

关键词： Underground coal gasification Vacuum pressure swing adsorption Rectisol process CO_(2)capture Integrated process

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