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Addition of surfactants to Low Salinity Waterflooding in microfluidics system to increase oil recovery

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Petroleum Research 2022年第4期7卷 486-494页

作者： Dito Fauzi Winanda Sanggono Adisasmito Department of Chemical Engineering Institut Teknologi BandungPostal Address:Jalan Ganesha No.10Bandung 40132Indonesia Jalan Ganesha No.10 Bandung 40132Indonesia

This study was conducted to investigate the phenomenon of oil removal from inside pores using a self-designed microfluidic test *** artificial micromodel chip as a representation of porous rocks has been created with a uniform pore structure design and made of PMMA(Polymethyl Methacrylate)*** micromodel chip has a porosity of 27.8%as well as a permeability of 2.7 *** using the microfluidic test kit,this study has investigated how low salinity water(LSW)injection with MgCl_(2)divalent ions and the addition of anionic surfactant,linear alkylbenzene sulfonate mixed with nonionic surfactants,nonylphenol ethoxylate(NP-10)affects to oil *** injection of LSW and surfactant solution was carried out with different injection stages,injection rates and surfactant solutions *** images during the injection process are recorded for analysis,which is the advantage of dynamic testing using this microfluidic test kit over conventional *** this study,it is indicated that the selection of ions contained in LSW affects the success of LSW *** the surfactant injection rate from 50 mL/min to 20 mL/min can increase the oil recovery from 1.27%to 4.29%.Oil recovery was also higher on surfactant injection which resulted in lower interfacial tension of the system based on the calculation of interfacial tension obtained from the Chun-Huh and Ghosh equations from the Winsor *** all injection scenarios carried out in this study,the highest increase in oil recovery of 26.87%OOIP was obtained by injecting surfactant solutions directly in the secondary stage without prior LSW injection.

关键词： Low salinity waterflooding Microfluidic test kit Micromodel chip Oil recovery Surfactant

Maternal-derived antibodies hinder the antibody response to H9N2 AIV inactivated vaccine in the field

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Animal Diseases 2022年第2期2卷 109-117页

作者： Xue Pan Xin Su Pingyun Ding Jinhua Zhao Hongrui Cui Dawei Yan Qiaoyang Teng Xuesong Li Nancy Beerens Haitao Zhang Qinfang Liu Mart C.M.de Jong Zejun Li Shanghai Veterinary Research Institute Chinese Academy of Agriculture SciencesPostal Address:Office Room D301518 Ziyue RoadMinhang DistrictShanghai 200241China Quantitative Veterinary Epidemiology Animal Sciences GroupWageningen University&ResearchPostal Address:Postbus 3386700AH Wageningenthe Netherlands Biotechnology Research laboratory Jiangsu Lihua Animal Husbandry Co.Ltd.ChangzhouChina Wageningen Bioveterinary Research Wageningen University&ResearchLelystadthe Netherlands

The H9N2 subtype avian influenza virus(AIV)inactivated vaccine has been used extensively in poultry farms,but it often fails to stimulate a sufficiently high immune response in poultry in the field,although it works well in laboratory experiments;hence,the virus still causes economic damage every year and poses a potential threat to public *** on surveillance data collected in the field,we found that broilers with high levels of maternal-derived antibodies(MDAs)against H9N2 virus did not produce high levels of antibodies after vaccination with a commercial H9N2 inactivated *** contrast,specific pathogen-free(SPF)chickens without MDAs responded efficiently to that *** MDAs were mimicked by administering passively transferred antibodies(PTAs)into SPF chickens in the laboratory,similar results were observed:H9N2-specific PTAs inhibited humoral immunity against the H9N2 inactivated vaccine,suggesting that H9N2-specific MDAs might hinder the generation of antibodies when H9N2 inactivated vaccine was *** challenge with homologous H9N2 virus,the virus was detected in oropharyngeal swabs of the vaccinated and unvaccinated chickens with PTAs but not in the vaccinated chickens without PTAs,indicating that H9N2-specific MDAs were indeed one of the reasons for H9N2 inactivated vaccine failure in the *** different titers of PTAs were used to mimic MDAs in SPF chickens,high(HI=12 log2)and medium(HI=log 9 log2)titers of PTAs reduced the generation of H9N2-specific antibodies after the first vaccination,but a booster dose would induce a high and faster humoral immune response even of PTA *** study strongly suggested that high or medium titers of MDAs might explain H9N2 inactivated vaccine failure in the field.

关键词： Maternal-derived antibodies(MDAs) Passively transferred antibodies(PTAs) Humoral immune response Vaccination failure H9N2 avian influenza virus(AIV)

An Innovative Environmental Management Practice: The potential and difficulties of ISO14001 in Chinese small towns

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An Innovative Environmental Management Practice: The potenti...

Management of address Information to Improve Quality of Customer Contact

中国生态学学会第六届全国会员代表大会暨学科前沿报告会

作者： ZhangLei PhD student Environmental Sociology Department of SociologyWageningen University and Research CenterThe Netherlands Postal address:Hollandseweg 16706 KN WageningenThe Netherlands Environmental Sociology Department of SociologyWageningen University and Research CenterThe Netherlands Postal address:Hollandseweg 16706 KN WageningenThe Netherlands

＜正＞ ln order to"green"the traditional production and consumption modes,various environmentalpolicies and management measures have been introduced to manage natural resources and to controlpollution,including environmental legislation,direct regulation,eco-labeling,market based andinformation based instruments,etc.

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Journal of Electronic Science and Technology of China 2004年第3期2卷 122-127页

作者： CHANG Taiwoo PARK Jinwoo PARK Chankwon JEONG Hanil NAM Yunseok postal Technology Research Center ETRI Daejeon 305-350 KoreaDepartment of Industrial EngineeringSeoul National University Seoul 151-744 KoreaDepartment of e-BusinessHanyang Cyber University Seoul 133-791 KoreaDepartment of Internet Information EngineeringDaejeon University Daejeon 300-716 S.KoreaPostal Technology Research CenterETRI Daejeon 305-350 Korea

Customer relationship management systems are gaining importance in today's business environment since customer satisfaction is crucial to the success of an enterprise, and especially so in e-business environment where customers can find substitute suppliers quite easily. In CRM, the quality of customer information is very important, and the address information even more so. It is because the address information plays a major role for customer contact channel and for timely and effective marketing service. Furthermore, it gives the basic source of geographic information for the offline delivery, the terminal activity of the e-commerce. In this study, we analyze various standards and proposals for the address information, and propose data models for the management of the information focusing on address components, and proto-type systems for management and service.

关键词： customer relationship management customer information address information address component

埃塞俄比亚转诊医院患者感知关怀行为的调查研究

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International Journal of Nursing Sciences 2023年第3期10卷 391-397页

作者： Abebaw Jember Ferede Lena Wettergren Kerstin Erlandsson Lemma Derseh Gezie Helena Lindgren Biftu Geda Department of Medical Nursing School of NursingCollege of Medicine and Health SciencesUniversity of GondarPostal address:196GondarEthiopia Department of Women’s and Children’s Health Karolinska InstitutetStockholmSweden Department of Public Health and Caring Sciences Uppsala UniversityUppsalaSweden School of Education Health and WelfareDalarna UniversityFalunSweden Department of Epidemiology and Biostatistics Institute of Public HealthCollege of Medicine and Health SciencesUniversity of GondarGondarEthiopia Department of Nursing College of Health ScienceShashamene CampusMadda Walabu UniversityShashameneEthiopia

目的本研究旨在了解患者对护士关怀行为的感知及关联因素。方法在埃塞俄比亚3所转诊医院进行横断面研究。连续抽取652例患者(应答率98.8%),应用阿姆哈拉语版关怀行为量表-16(Caring Behav-iors Inventory-16,CBI-16)和患者满意度量表(Pa... 详细信息

目的本研究旨在了解患者对护士关怀行为的感知及关联因素。方法在埃塞俄比亚3所转诊医院进行横断面研究。连续抽取652例患者(应答率98.8%),应用阿姆哈拉语版关怀行为量表-16(Caring Behav-iors Inventory-16,CBI-16)和患者满意度量表(Patient Satisfaction Instrument,PSI)进行调查。其中,CBI-16包含4个分量表:支持保证、知识技能、尊重和联系。使用多元线性回归分析确定与患者感知关怀行为相关联的社会人口学因素和临床相关因素。结果患者对护士关怀行为的感知程度较高,总平均分为4.86(SD=0.72)分,其中支持保证分量表得分最高。多元回归分析显示,部分社会人口统计学变量和临床相关因素与患者对关怀行为的感知(总平均分)存在关联。40~49岁(B=-0.19,P=0.012)和单身(B=-0.13,P=0.03)的患者CBI-16得分较低。受教育程度较高(B=0.35,P=0.001)、外科患者(B=0.11,P=0.027)、在过去8 h与护士相处时间较多(B=0.16,P<0.001)的患者对关怀行为的感知程度更高。CBI-16得分与PSI得分呈正相关(r=0.62,P<0.001)。结论埃塞俄比亚住院患者对护士关怀行为的总体感知程度较高,尤其是身体护理方面,但对情感关怀的感知程度较低。本研究认为,年龄40~49岁的单身患者更需要被关怀。患者与护士相处的时间对于患者感知护士关怀行为有重要影响。

关键词：关怀行为埃塞俄比亚医疗卫生服务患者满意度问卷调查

Species richness and density evaluation for plants with aggregated distributions:fixed *** area methods

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Journal of Plant Ecology 2017年第5期10卷 765-770页

作者： Rita de Cássia Quitete Portela Alexandra dos Santos Pires Maria Isabel Guedes Braz Eduardo Arcoverde de Mattos Departamento de Ecologia Instituto de BiologiaUniversidade Federal do Rio de JaneiroCaixa Postal 68020Ilha do FundãoRio de JaneiroRJ 21941-590Brasil Departamento de Ciências Ambientais Instituto de FlorestasUniversidade Federal Rural do Rio de JaneiroRod.BR 465Km 07Cidade UniversitáriaSeropédicaRio de JaneiroRJ 23890-000Brasil

Aims Knowledge of species richness is of prime importance to both basic and applied aspects of ecological ***,quantifying plant species richness in the tropics is potentially time-consuming because of high species *** species richness estimates are also frequently biased,because many rare species are not *** address these problems,the use of a variable area method has been proposed as an alternative to fixed area methods,but its appli-cability to plants with aggregated distributions has been questioned based on simulation *** use empirical data to compare the efficiency and accuracy of a variable area method and a fixed area method for estimating species richness,density and basal area for plants with aggregated distributions,using palms as a model *** Adult palms were sampled in twenty 10×30 m transects in an Atlantic Forest in Rio de Janeiro state,*** individuals were considered in the fixed area method,while in the variable area method only the first six adults in each transect were sampled;in this case,transect length was defined according to the distance of the sixth adult from the beginning of the *** fewer than six individuals were observed in a given transect,transect length was extended up to 50 m to search for additional *** efficiency of both methods was compared based on species rarefaction curves,using the chao 1 statistic(for abundance data).For each species we calculated mean density per transect and basal area,according to each sampling *** effort in terms of the number of individual plants and the area necessary to characterize maximum species richness in each sampling method,as well as mean time taken to sample a single transect,were compared as measures of *** findings An accurate estimate of species richness was achieved using both methods,but in the variable area method,a quarter of the number of individuals and half the area was sufficient

关键词： basal area biodiversity inventory palms taxon sampling

Research on Tensor Multi-Clustering Distributed Incremental Updating Method for Big Data

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Computers, Materials & Continua 2024年第10期81卷 1409-1432页

作者： Hongjun Zhang Zeyu Zhang Yilong Ruan Hao Ye Peng Li Desheng Shi School of Computer Science Nanjing University of Posts and TelecommunicationsNanjing210023China Ministry of Science and Technology Innovation China Communications Services Corporation LimitedBeijing100071China School of Artificial Intelligence The University of ManchesterManchesterM139PLUK Ministry of Technology Innovation China Telecom Artificial Intelligence Technology(Beijing)Corporation LimitedBeijing100032China Ministry of Science and Technology Innovation Zhongbo Information Technology Research Institute Corporation LimitedNanjing210012China Jiangsu postal Big Data Technology and Application Engineering Research Center Nanjing University of Posts and TelecommunicationsNanjing210003China

The scale and complexity of big data are growing continuously,posing severe challenges to traditional data processing methods,especially in the field of clustering *** address this issue,this paper introduces a new method named Big Data Tensor Multi-Cluster Distributed Incremental Update(BDTMCDIncreUpdate),which combines distributed computing,storage technology,and incremental update techniques to provide an efficient and effective means for clustering ***,the original dataset is divided into multiple subblocks,and distributed computing resources are utilized to process the sub-blocks in parallel,enhancing ***,initial clustering is performed on each sub-block using tensor-based multi-clustering techniques to obtain preliminary *** new data arrives,incremental update technology is employed to update the core tensor and factor matrix,ensuring that the clustering model can adapt to changes in ***,by combining the updated core tensor and factor matrix with historical computational results,refined clustering results are obtained,achieving real-time adaptation to dynamic *** experimental simulation on the Aminer dataset,the BDTMCDIncreUpdate method has demonstrated outstanding performance in terms of accuracy(ACC)and normalized mutual information(NMI)metrics,achieving an accuracy rate of 90%and an NMI score of 0.85,which outperforms existing methods such as TClusInitUpdate and TKLClusUpdate in most ***,the BDTMCDIncreUpdate method offers an innovative solution to the field of big data analysis,integrating distributed computing,incremental updates,and tensor-based multi-clustering *** not only improves the efficiency and scalability in processing large-scale high-dimensional datasets but also has been validated for its effectiveness and accuracy through *** method shows great potential in real-world applications where dynamic data growth is common,and it is of significant imp

关键词： Tensor incremental update distributed clustering processing big data

Nanomaterial-based biosorbents:Adsorbent for efficient removal of selected organic pollutants from industrial wastewater

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Emerging Contaminants 2022年第1期8卷 46-58页

作者： Hussein.K.Okoro Sadanand Pandey Clement O.Ogunkunle Catherine J.Ngila C.Zvinowanda Ismaila Jimoh Isiaka A.Lawal Muyiwa M.Orosun Adewale George Adeniyi Analytical-Environmental Research Group Department of Industrial ChemistryFaculty of Physical SciencesP.M.B.1515University of IlorinPostal Code 240003IlorinNigeria Department of Chemistry College of Natural ScienceYeungnam University280 Daehak-RoGyeongsanGyeongbuk38541Republic of Korea Environmental Botany Unit Department of Plant BiologyUniversity of IlorinIlorinNigeria Analytical-Environmental and Membrane Nanotechnology Research Group Department of Chemical SciencesFaculty of ScienceUniversity of JohannesburgP.O.Box 17011Doornfontein2028JohannesburgSouth Africa Psychometrics Department JAMBNigeria Chemistry Department Faculty of Applied and Computer ScienceVaal University of Technology1900VanderbijlparkSouth Africa Health and Environmental Physics Research Group Physics DepartmentUniversity of IlorinIlorinNigeria The African Academy of Sciences P.O.Box 24916-00502 NairobiKenya Physical Address:8 Miotoni LaneKarenNairobiKenya Department of Chemical Engineering Faculty of EngineeringUniversity of IlorinPMB1515IlorinNigeria

The contamination of the environment by organic pollutants is a major risk factor,particularly for developing *** organic pollutants(SOPs)like the phenolic compounds,polyaromatic hydrocarbons(PAHs),pesticides,and herbicides pose serious environmental and health issues owing to their toxic characteristics and poor *** from their potential mutagenicity,carcinogenicity,tetragenicity and high body accumulation,these pollutants have become an increase concern *** is a promising alternative strategy for removing organic pollutants during water purification *** have several advantages such as simplicity of operation,good sorption capacity,high recoverability and *** a result,the focus and novelty of this review is on recent trends in the use of biosorbents,with a particular emphasis on the removal of SOPs from *** also cover use of bacteria biosorbents,fungal,algae and chitosan/chitin *** from that,we have also reviewed various classes of SOPs,their levels in the environment,classification and available characteristics techniques suitable for the adsorption experiments of these nanocomposites *** addition,we have provided comprehensive explanations and conclusions on possible future application of biosorbents and the mechanism of adsorption of these materials for removal of these SOPs from wastewater during water purification processes.

关键词： Biosorbents Adsorption Organic pollutants Biosorption Wastewater

Structural and Vibrational Study of PCBM

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Journal of Chemistry and Chemical Engineering 2011年第11期5卷 1034-1040页

作者： Alfredo Tlahuice-Flores Sergio Mejia-Rosales Instituto de Fisica Universidad Nacional Autonoma de Mexico Apartado Postal 20-364 01000 Mexico D. F. Mexico CICFIM-Facultad de Ciencias Fisico Matematicas Universidad Autonoma de Nuevo Leon San Nicolas de los Garza N. L. 66450 Mexico

The 1-（3-methoxycarbonyl） propyl-1-phenyl-（6,6）C61 （also called PCBM） is a C60 derivative widely used as an electron-acceptor in organic solar cells. To date, all the infrared spectra reported are experimental, mainly because of the calculations needed to study these structures are highly time-consuming. In this report we address for the first time the infrared spectrum calculation of PCBM with Cs symmetry by using the PW91/dnp level as implemented in the Dmol3 code. In this calculation we have found two intense peaks in the IR spectrum, that agree fairly with the 1187 and 1787 cm^-1 measured experimentally.

关键词： PCBM DFT IR solar cells Cs symmetry