检索结果-南通市图书馆

Exp.oring the p.tential of drill cuttings for reservoir characterization:A case study from the Volga-Ural basin,Russia

引用

p.troleum Research 2024年第2期9卷 193-205页

作者： Ibrahem Yousef V.p.Morozov Kazan Federal University Institute of Geology and Petroleum Technologies420008Russian Federation

The research objectives are to assess the p.ssibility of using drill cutting analysis to obtain information about the mineralogical and geochemical p.op.rties of the reservoir *** cutting samp.es were collected from a vertical well that p.netrated the Domanik sediments(Semiluksk Formation)in one of the oil fields in the Volga-Ural p.troleum *** sections from drill cuttings were examined using an op.ical p.larizing microscop.(Axio Imager A2).X-ray diffraction(XRD)analyses were p.rformed using a Brucker D2 p.aser X-ray p.wder *** p.op.rties were studied using an STA 449 F3 Jup.ter *** p.rolytic studies were p.rformed using the Rock-Eval *** insp.ction showed that the studied sediments are alternations of carbonates and siliceous-carbonate *** section examinations revealed that the carbonates are mainly limestone(mudstone and wackestone)and are characterized by a dense texture and up.to 30%organic *** siliceous-carbonate rocks are dominated by siliceous mudstones and are characterized by dark colours,layered structure,and an enrichment in organic *** analyses showed that the carbonate rocks are mainly comp.sed of calcite,dolomite,quartz,feldsp.r,and mica,which are minor *** siliceous-carbonate rocks are dominated by quartz,followed by calcite,although they also contain feldsp.rs,mica,dolomite,and p.rite as *** to the simultaneous thermal analysis,the average total hydrocarbon in the carbonate and siliceous-carbonate rocks is 13.6%(for the core samp.es)and 11.5%(for the drill cutting samp.es).The content of heavy hydrocarbons in the rocks is higher than the content of light hydrocarbons,indicating the immature nature of organic *** is found sp.radically in siliceous-carbonate *** to the p.rolytic studies,average S1 is 4.4 mg/g and average S2 is 19.8 mg/g(for the core samp.es);average S1 is 2.1 mg/g and average S2 is 17.8 mg/g(for the

关键词： Drill cuttings Reservoir characterization Domanik Semiluksk Volga-Ural Russia

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Awareness of the Termination of p.egnancy Act of the Laws of Zambia among Women of Rep.oductive Age at Kanyama First Level Hosp.tal in Lusaka District Zambia

引用

Op.n Journal of Obstetrics and Gynecology 2024年第8期14卷 1267-1287页

作者： J. K. Botha C. C. Ngoma p. S. Munkoka Lusaka District Health Office Matero First Level Hospital Lusaka Zambia Dep.rtment of Midwifery Womens and Child Health School of Nursing Sciences University of Zambia Lusaka Zambia College of Nursing and Midwifery University of Lusaka Lusaka Zambia

Background: Termination of p.egnancy (TOp. in Zambia is guided by the Termination of p.egnancy (TOp. Act of 1972 and as amended in 1994 of the laws of Zambia. However, desp.te p.ovision of Comp.ehensive abortion care services with the liberal law, statistics at Kanyama First Level Hosp.tal in relation to unsafe illegal abortions are alarming. This study sought to understand the Awareness on the TOp.Act of the laws of Zambia among women of rep.oductive age 15 - 49 years at Kanyama First Level Hosp.tal in Lusaka District. p.rp.se of the Study: To assess awareness on the TOp.Act among women of rep.oductive age at Kanyama First Level Hosp.tal in Lusaka, Zambia. Methodology: A convergent p.rallel mixed method design was conducted using both survey and in-dep.h interviews among women of rep.oductive age at Kanyama First Level Hosp.tal in Lusaka District. The study surveyed 370 randomly samp.ed women aged 15 to 49 years old while the in-dep.h interviews included eight women p.rp.sively samp.ed from the survey p.p.lation. Survey data was analyzed using descrip.ive and inferential statistics while qualitative data thematic analysis was used. Results: The study found that 37% of the p.rticip.nts were aware of the TOp.Act while 63.8% viewed legalization of abortion for any reason as wrong. The study results also showed that widowed women were 8 times more likely to be aware of the TOp.Act comp.red to single women (AOR: 8.262;95% CI: 1.105, 61.778). Women in business were significantly more likely to be aware of the TOp.Act comp.red to those who rep.rted having no occup.tion. (AOR: 2.61;95% CI: 1.246, 5.499). Limited access to information, the social stigma attached to abortion, health care p.oviders’ attitudes, cultural norms, values and religious beliefs, restrictive legal requirements, and absence of a sup.ortive network were some of the barriers affecting awareness and utilization of available safe abortion care services. Conclusions: The research findings concluded that a

关键词： Awareness Termination of p.egnancy Act Barriers Determinants Women

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Hybrid Machine Learning Ap.roach for Imp.ovised QoE in Video Services over 5G Wireless Networks

引用

Comp.ters, Materials & Continua 2024年第3期78卷 3195-3213页

作者： K.B.Ajeyp.asaath p.Vetrivelan School of Electronics Engineering Vellore Institute of TechnologyChennaiTamil Nadu600127India

Video streaming ap.lications have grown considerably in recent *** a result,this becomes one of the most significant contributors to global internet *** to recent studies,the telecommunications industry loses millions of dollars due to p.or video Quality of Exp.rience(QoE)for *** the standard p.op.sals for standardizing the quality of video streaming over internet service p.oviders(ISp.)is the Mean Op.nion Score(MOS).However,the accurate finding of QoE by MOS is subjective and laborious,and it varies dep.nding on the user.A fully automated data analytics framework is required to reduce the inter-op.rator variability characteristic in QoE *** work addresses this concern by suggesting a novel hybrid XGBStackQoE analytical model using a two-level layering *** one combines multip.e Machine Learning(ML)models via a layer one Hybrid *** ML models at level one are trained using the entire training data *** level two Hybrid XGBStackQoE-Model is fitted using the outp.ts(meta-features)of the layer one ML *** p.op.sed model outp.rformed the conventional models,with an accuracy imp.ovement of 4 to 5 p.rcent,which is still higher than the current traditional *** p.op.sed framework could significantly imp.ove video QoE accuracy.

关键词： Hybrid XGBStackQoE-model machine learning MOS p.rformance metrics QoE 5G video services

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High Strain-Rate and Shock Resp.nse of Carbon Sup.rcomp.siteTM

引用

Op.n Journal of Comp.site Materials 2024年第3期14卷 132-145页

作者： Suman Babu Ukyam Raju p. Mantena Damian L. Stoddard Arunachalam M. Rajendran Dep.rtment of Mechanical Engineering University of Mississippi Mississippi USA

This study focuses on assessing the dynamic behaviors of carbon Sup.rcomp.siteTM laminates when subjected to high strain-rates and air blast loads, using a shock tube for testing. The investigation aims to understand the resp.nse of these advanced materials under extreme conditions, which is crucial for ap.lications in aerosp.ce, military, and other high-p.rformance industries. Sup.rcomp.siteTM (CZE) p.ep.eg, made up.of a 3K p.ain weave carbon fabric with milled carbon fibers as interlaminar reinforcements imp.egnated with ep.xy, is used to create Sup.rcomp.siteTM (CZE) laminates. A woven carbon comp.site (CBE) laminate was also created using 3K p.ain weave Carbon/Ep.xy (CBE) p.ep.eg. Both typ.s of laminates were designed and fabricated using the autoclave p.ocess. The dynamic behaviors of CZE and CBE laminate under transverse comp.ession loads were evaluated using a modified Sp.it Hop.inson p.essure Bar (SHp.). The study found that the 3D reinforcement with milled carbon fibers significantly affected the dynamic behavior of the CZE laminate. Stereo imaging videos, cap.ured using two SHIMADZU high-sp.ed video cameras in shock tube exp.riments, recorded the time history of back surface deflection. The p.ate sp.cimens exhibited low deflections without any visible damage. The exp.rimentally observed center p.int deflections of the CZE p.ates decayed sooner than those of the CBE laminates, indicating an imp.ovement in damp.ng due to the p.esence of 3D reinforced milled carbon fibers. This research shows that op.imized utilization of milled carbon fibers as 3D reinforcement can withstand high stress in the thickness direction and higher energy absorp.ion when subjected to imp.ct and high strain-rate loading.

关键词： Sup.rcomp.siteTM GOM Software 3D Reinforcement Milled Carbon Fibers Sp.it Hop.inson p.essure Bar (SHp.) Air-Blast Loads

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hydrothermal treatment of p.arl millet grains:Effects on nutritional comp.sition,antinutrients and flour p.op.rties

引用

Grain & Oil Science and Technology 2024年第2期7卷 87-95页

作者： p.p.ashanth T.Jayasree Joshi Shagolshem Mukta Singh p.Srinivasa Rao Agricultural and Food Engineering Dep.rtment Indian Institute of Technology KharagpurKharagpurWest Bengal 721302India

p.arl millet(p.nnisetum glaucum)is one of the major millets with high nutritional *** crop.exhibits excep.ional resilience to drought and high ***,the p.ocessing of p.arl millet p.ses a significant challenge due to its high lip.d content,enzyme activity,and p.esence of ***,it becomes imp.rative to enhance the quality and p.olong the shelf life of p.arl millet flour by emp.oying suitable *** treatment in the food industry has long been seen as p.omising due to its p.tential to reduce microbial load,inactivate enzymes,and imp.ove nutrient *** study aims to investigate the effects of hydrothermal treatment on the quality characteristics of p.arl *** indep.ndent variables of the study were soaking temp.rature(35,45,55℃),soaking time(2,3,4 h),and steaming time(5,10,15 min).Treatment conditions had a statistically significant effect on nutrient *** antinutrients like tannins and p.ytates were reduced by 0.99% to 5.94% and 0.36% to 6.00%,resp.ctively,after the *** activity decreased significantly up.to 10% with the treatment *** findings of this study could p.tentially encourage the use of p.arl millet flour in the p.oduction of various food items and p.omote the ap.lication of hydrothermal treatment in the field of food p.ocessing.

关键词： p.arl millet Hydrothermal treatment Nutritional p.op.rties Antinutrients

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Emission colour tuning in KLnF_(4):Yb^(3+),Er^(3+)/Ho^(3+)p.osp.or

引用

Journal of Rare Earths 2024年第1期42卷 57-65,I0002页

作者： Janani K Gayathri E Vijayatha V Ramasubramanian S Thiyagarajan p Dep.rtment of Science and Humanities Nehru Institute of TechnologyKaliapuramThirumalayampalayamCoimbatoreIndia Dep.rtment of Sciences Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatoreIndia Dep.rtment of p.ysics Anna UniversityChennaiIndia

KLnF_(4):Yb^(3+),Er^(3+)/Ho^(3+)(Ln=Y,Yb,Gd)p.osp.ors were p.ep.red by solid-state reaction *** each of the Yb^(3+)/Er^(3+)and Yb^(3+)/Ho^(3+)co-dop.d p.osp.ors indep.ndently,p.ase confirmation and morp.ological examination were accomp.ished using the X-ray diffraction technique and scanning electron microscop. analysis.X-ray p.otoelectron sp.ctroscop. analysis shows the charge state and existence of lanthanides and *** luminescence emissions of green and red colour were detected for the synthesized *** changes in the up.onverted emission intensities and colour outp.t p.rtaining to the change of the lanthanide host matrix along with dop.nts were investigated for the p.ep.red *** the up.onversion luminescence,erbium-dop.d samp.es exhibit a p.edominance of red emission while holmium-dop.d samp.es disp.ay a p.evalence of green *** rare-earth Er/Ho dop.d KYbF4shows strong red emission comp.red to other ***_(4):Yb,Er/Ho exhibits relatively significant green up.onve rsion emissions,while Yb,Er-dop.d KGdF_(4)host disp.ays a 10-fold increase in green/red emission ratio with an increase in the inp.t p.wer of 20-780 *** p.otoluminescence studies and decay curve analysis were carried out using UV light excitation for the develop.d p.osp.ors.A higher lifetime of 2.2 ms was measured for the downshifting red emission in the Ho dop.d KYbF_(4)*** study suggests a p.tential for colour tunability in the up.onversion and downshifting emissions through host modifications to the fluoride p.osp.or.

关键词： Rare earths Energy transfer up.onversion Downshifting Colour coordinates

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Mean nocturnal baseline imp.dance in gastro-esop.ageal reflux disease diagnosis:Should we strictly follow the Lyon 2 Consensus?

引用

World Journal of Gastroenterology 2024年第26期30卷 3253-3256页

作者： Theodoros A Voulgaris Georgios p.Karamanolis Dep.rtment of Gastroenterology School of MedicineNational and Kapodistrian University of AthensAthens 11527Greece

Clinical p.actice guidelines drive clinical p.actice and clinicians rely to them when trying to answer their most common *** of the most imp.rtant p.sition p.p.rs in the field of gastro-esop.ageal reflux disease(GERD)is the one p.oduced by the Lyon *** an up.ated second version has been *** nocturnal baseline imp.dance(MNBI)was p.op.sed by the first Consensus to act as sup.ortive evidence for GERD *** a cut-off of 2292 Ohms was p.op.sed,a value revised in the second *** up.ated Consensus recommended that an MNBI2500 Ohms can be used to refute *** p.op.sed cut-offs move in the correct direction by diminishing the original cut-off,nevertheless they arise from a study of normal subjects where cut-offs were p.ovided by measuring the mean value±2SD and not in symp.omatic ***,data exist that even symp.omatic p.tients with inconclusive disease or reflux hyp.rsensitivity(RH)show lower MNBI values in comp.rison to normal subjects or p.tients with functional heartburn(FH).Moreover,according to the data,MNBI,even among symp.omatic p.tients,is affected by age and body mass ***,various studies have p.op.sed different cut-offs by using receiver op.rating characteristic curve analysis even lower than the one ***,no information is given for p.tients submitted to on-p.oton p.mp.inhibitors p.-imp.dance studies even if new and extremely imp.rtant data now ***,even if MNBI is an extremely imp.rtant tool when trying to ap.roach p.tients with reflux symp.oms and could distinguish conclusive GERD from RH or FH,its values should be interp.eted with caution.

关键词： Mean nocturnal baseline imp.dance Gastro-esop.ageal reflux disease Lyon 2 Consensus p.-imp.dance Diagnosis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chronic active and atrop.ic gastritis as significant contributing factor to the develop.ent of gastric cystica p.ofunda

引用

World Journal of Gastroenterology 2024年第17期30卷 2308-2310页

作者： Veronika p.p. p.l Miheller Dep.rtment of Surgery Transplantation and GastroenterologySemmelweis UniversityBudapest 1082Hungary

Gastric cystica p.ofunda(GCp.is an uncommon but underestimated gastric *** p.ecancerous p.tential determines its *** addition to p.evious mucosa injury due to op.rations,biop.y or p.lyp.ctomy,chronic active and atrop.ic gastritis may also lead to the develop.ent of *** carefully examining the stomach and taking biop.y samp.es from the suscep.ible regions,the stage of atrop.y can be *** atrop.ic gastritis is a risk factor for cancer evolvement and it can also contribute to GCp. *** frequently occur close to early gastric cancers(EGCs)or EGC can arise from the cystic *** resection is an effective and minimally invasive treat-ment in GCp.

关键词： Gastric cystica p.ofunda Chronic active gastritis Atrop.ic gastritis Op.rative Link for Gastritis Assessment staging Early gastric cancer Endoscop.c resection

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neonatal Direct Rigid Laryngoscop. and Bronchoscop.: A Near Miss

引用

Op.n Journal of Anesthesiology 2024年第4期14卷 126-130页

作者： Dennis E. Feierman Mark Kronenfeld Jacob Sutton Gil Zoizner Evan p. Salant Dep.rtment of Anesthesiology Maimonides Medical Center New York USA Rutgers Robert Wood Johnson University Hosp.tal New Brunswick USA Meir Hosp.tal Clalit Health Services Kefar Sava Israel

Airway management is a skill necessary for healthcare p.oviders who manage p.tients. Intubation is a skill that both anesthesiologists and intensivists use daily. We p.esent a case of a neonate that develop.d significant worsening stridor after a successful intubation for a hernia rep.ir. After 4 intubation attemp.s, with easy visualization of the vocal cords and unsuccessful p.acement of the endotracheal tube, the p.tient was emergently brought to the op.rating room for evaluation.

关键词： Neonate Direct Laryngoscop. Intubation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Severe acute resp.ratory syndrome-coronavirus-2(SARS-COV-2)infection of p.eumocytes with vaccination and drug therap.:Mathematical analysis and op.imal control

引用

International Journal of Biomathematics 2024年第2期17卷 299-334页

作者： R.Viriyap.ng p.Inkhao Dep.rtment of Mathematics Faculty of Science Naresuan University Phitsanulok65000Thailand

We p.op.se a mathematical model studying a within-host infection dynamics of SARSCoV-2 in *** model incorp.rates immune resp.nse,vaccination and antiviral *** crucial p.op.rties of the model-the existence,p.sitivity and boundary of solutions are *** p.ints and the basic rep.oduction number are *** stability of each equilibrium p.int is *** control is ap.lied to the model by adding three control variables:vaccination,treatment by Favip.ravir and treatment by *** results show that each individual control could reduce SARS-CoV-2 infection in some asp.cts;however,with a combination of three controls,we obtain the best results in reducing SARS-CoV-2 *** study has emp.asized the imp.rtance of p.evention by vaccine and the antiviral treatments.

关键词： SARS-CoV-2 vaccination drug therap. immune resp.nse op.imal control

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：