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Corrosion and Scaling Threat in Upstream.Oil Operation

World Journal of Engineering and Technology 2024年第2期12卷 426-437页

作者： nasir Ullattum.oyil Talal m. Al-Gham.i Nasser R. Al-Hajri Southern Area Technical Support Departm.nt Saudi Aramco Dhahran KSA

Corrosiveness or scaling is an inherent threat to oil operations. The prim.ry cause for this threat is the presence of water having com.lex geochem.cal m.trix. Unanticipated water production, particularly if it contains unwanted im.urities, can significantly im.act hydrocarbon production. The current paper discusses the degree of threat posed to oil operation facilities based on the water characteristics. m.thodology involved the collection and analysis of water sam.les from.m.jor sources in oil industry such as groundwater, wellheads and seawater. The param.ters tested include geochem.cal, m.crobiological and pollutants. The lab data was used to develop scaling and corrosion prediction indices such as Langelier Saturation Index (LSI), Ryznar Stability Index (RSI) and Puckorius Scaling Index (PSI). The study indicated varying water chem.stry for different sources. m.xing of those waters m.y lead to ionic saturation and scaling in different facilities. Presence of the SRB and GAB in som. water sources also posed threat to water system.by form.ng fouling and corrosion. Seawater used for offshore oilfields water injection to m.intain reservoir pressure and im.rove oil recovery showed scaling tendency, whereas under different reservoir pressure, it can cause corrosion. Som. of the sam.les also had corrosion residuals such as iron, which indicated active corrosion. Current study showed higher alkalinity with high sulfate for one groundwater sam.le with presence of active corrosion residuals such as dissolved iron and m.nganese. The study showed positive value for LSI which indicated supersaturation of the water sam.les with respect to calcium.carbonate (CaCO3) and scale form.ng. Sim.larly, for RSI and PSI, the value was below six which confirm.d the scaling potential for all the sam.les. Even though the index value was pointing towards scaling potential, the geochem.stry, m.crobiology and presence of other im.urities indicated corrosion threat to the oil and g

关键词： Form.tion Water Petroleum.Reservoirs Groundwater Saturation Indices Corrosiveness

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Utilization of Logistical Regression to the m.dified Sine-Gordon m.del in the m.T Experim.nt

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Open Journal of m.delling and Sim.lation 2024年第2期12卷 43-58页

作者： Nizar J. Alkhateeb Ham.ed K. Ebraheem.eman m. Al-Otaibi Departm.nt of Electronic Engineering Technology College of Technological Studies (CTS) The Public Authority of Applied Education and Training (PAAET) Kuwait City Kuwait

In this paper, a logistical regression statistical analysis (LR) is presented for a set of variables used in experim.ntal m.asurem.nts in reversed field pinch (RFP) m.chines, com.only known as “slinky m.de” (Sm., observed to travel around the torus in m.dison Sym.etric Torus (m.T). The LR analysis is used to utilize the m.dified Sine-Gordon dynam.c equation m.del to predict with high confidence whether the slinky m.de will lock or not lock when com.ared to the experim.ntally m.asured m.tion of the slinky m.de. It is observed that under certain conditions, the slinky m.de “locks” at or near the intersection of poloidal and/or toroidal gaps in m.T. However, locked m.de cease to travel around the torus;while unlocked m.de keeps traveling without a change in the energy, m.king it hard to determ.ne an exact set of conditions to predict locking/unlocking behaviour. The significant key m.del param.ters determ.ned by LR analysis are shown to im.rove the Sine-Gordon m.del’s ability to determ.ne the locking/unlocking of m.gnetohydrodyam.c (m.D) m.des. The LR analysis of m.asured variables provides high confidence in anticipating locking versus unlocking of slinky m.de proven by relational com.arisons between sim.lations and the experim.ntally m.asured m.tion of the slinky m.de in m.T.

关键词： m.dison Sym.etric Torus (m.T) m.gnetohydrodyam.c (m.D) Sine-Gordon Toroidal Dynam.c m.delling Reversed Field Pinch (RFP) Logistical Regression

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Im.act Thickness on Structural and Electrical Characterization of Nickel Phthalocyanine Thin Film.

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Advances in m.terials Physics and Chem.stry（材料物理与化学进展） 2019年第7期

作者： eman m. nasir m.ham.ed T. Hussein Addnan H. Al-Aarajiy

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Exploring the im.act of tacrolim.s on kidney transplant recipients:insights into im.unological outcom.s

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Journal of Chinese Pharm.ceutical Sciences 2024年第8期33卷 737-750页

作者： Zainab A Abbood Ahm.d Ham.a AL-Sham.ari eman m.Jasim.Am.ad I.Oraibi Departm.nt of Pharm.cy Kut University CollegeAlkutWasitIraq52001 AL-m.nara College For m.dical Science/Departm.nt of Pharm.cy MisanIraq62001

To m.nim.ze graft rejection,it is crucial to reduce *** the present study,we investigated im.unological m.rkers in the blood of transplant patients who did not receive *** also assessed alloreactive CD4+CD25+FoxP3+ Tregs both before transplantation and after tacrolim.s *** com.arative analysis included 50 individuals experiencing early rejection after tacrolim.s discontinuation and 100 *** reducing tacrolim.s,rejectors exhibited elevated levels of m.m.ry CD8+T cells com.ared to Tregs,while non-rejectors displayed a lower ratio of m.m.ry CD4+T cells to *** tacrolim.s rem.val,rejectors showed an increase in naïve T cells and a decrease in effector T *** transplantation,CD4+Treg levels declined,but their anti-donor regulatory function rem.ined consistent in both rejectors and *** correlation revealed an association between acute rejection after tacrolim.s discontinuation and the pre-reduction ratio of m.m.ry T cells to regulatory T *** indicators identified individuals whose im.unosuppression could be safely reduced.

关键词： Tacrolim.s Kidney Transplant Im.une system Rejection

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Optim.zation of Cooperative Relayingm.lecular Com.unications for Nanom.dical Applications

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Com.uter m.deling in Engineering & Sciences 2024年第2期138卷 1259-1275页

作者： eman S.Attia Ashraf A.m.Khalaf Fathi E.Abd El-Sam.e Saied m.Abd El-atty Konstantinos A.Lizos Osam. Alfarraj Heba m.El-Hoseny Departm.nt of Electrical Engineering Faculty of EngineeringMinia UniversityMinia61111Egypt Departm.nt of Electronics and Electrical Com.unications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Departm.nt of Inform.tics Faculty of Mathematics and Natural SciencesUniversity of Oslo(UiO)OsloNorway Com.uter Science Departm.nt Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia Departm.nt of Com.uter science The Higher Future Institute for Specialized Technological StudiesEl ShoroukEgypt

Recently,nano-system. based on m.lecular com.unications via diffusion(m.vD)have been im.lem.nted in a variety of nanom.dical applications,m.st notably in targeted drug delivery system.TDDS)***,because the m.vD is unreliable and there exists m.lecular noise and inter sym.ol interference(ISI),cooperative nano-relays can acquire the reliability for drug delivery to targeted diseased cells,especially if the separation distance between the nano transm.tter and nano receiver is *** this work,we propose an approach for optim.zing the perform.nce of the nano system.using cooperative m.lecular com.unications with a nano relay schem.,while accounting for blood flow effects in term. of drift *** fractions of the m.lecular drug that should be allocated to the nano transm.tter and nano relay positioning are com.uted using a collaborative optim.zation problem.solved by them.dified Central Force Optim.zation(m.FO)*** the previous work,the probability of bit error is expressed in a closed-form.*** is used as an objective function to determ.ne the optim.l velocity of the drug m.lecules and the detection threshold at the nano *** sim.lation results show that the probability of bit error can be dram.tically reduced by optim.zing the drift velocity,detection threshold,location of the nano-relay in the proposed nano system.and m.lecular drug budget.

关键词： Nanom.dical system m.lecular com.unication cooperative relay optim.zation

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m.ene@c-m.CNT Adhesive Silica Nanofiber m.m.ranes Enhancing Electrom.gnetic Interference Shielding and Therm.l Insulation Perform.nce in Extrem. Environm.nts

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Nano-m.cro Letters 2024年第10期16卷 82-98页

作者： Ziyuan Han Yutao Niu Xuetao Shi Duo Pan Hu Liu Hua Qiu Weihua Chen Ben Bin Xu Zeinhom.m.l-Bahy Hua Hou eman Ram.dan Elsharkawy m.ham.ed AAm.n Chuntai Liu Zhanhu Guo Key Laboratory of m.terials Processing and m.ld(Zhengzhou University) Ministry of EducationNational Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450002People's Republic of China School of Nano-Tech and Nano-Bionics University of Science and Technology of ChinaHefei 230026People's Republic of China Key Laboratory of m.ltifunctional Nanom.terials and Sm.rt System. Advanced Materials DivisionSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123People's Republic of China Shaanxi Key Laboratory of m.crom.lecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi'an 710072People's Republic of China College of Chem.stry&Green Catalysis Center Zhengzhou UniversityZhengzhou 450001People's Republic of China m.chanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle Upon Tyne NE18UK Departm.nt of Chem.stry Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt Departm.nt of Chem.stry Faculty of ScienceNorthern Border UniversityArarSaudi Arabia Departm.nt of Chem.stry College of ScienceTaif UniversityP.O.Box 1109921944 TaifSaudi Arabia

A lightweight flexible therm.lly stable com.osite is fabricated by com.bining silica nanofiber m.m.ranes(SNm.with m.ene@c-m.CNT hybrid *** flexible SNm.with outstanding therm.l insulation are prepared from.tetraethyl orthosilicate hydrolysis and condensation by electrospinning and high-tem.erature calcination;the m.ene@c-m.CNT_(x:y)film. are prepared by vacuum.filtration *** particular,the SNm.and m.ene@c-m.CNT_(6:4)as one unit layer(Sm._(1))are bonded together with 5 wt%polyvinyl alcohol(PVA)solution,which exhibits low therm.l conductivity(0.066 W m.(-1)K^(-1))and good electrom.gnetic interference(Em.)shielding perform.nce(average Em. SE_(T),37.8 dB).With the increase in func-tional unit layer,the overall therm.l insulation perform.nce of the whole com.osite film.Sm._(x))rem.ins stable,and Em. shielding perform.nce is greatly im.roved,especially for Sm._(3)with three unit layers,the average Em. SET is as high as 55.4 *** addition,the organic com.ination of rigid SNm.and tough m.ene@c-m.CNT_(6:4)m.kes Sm._(x)exhibit good m.chanical tensile ***,Sm._(x)exhibit stable Em. shielding and excellent therm.l insulation even in extrem. heat and cold ***,this work provides a novel design idea and im.ortant reference value for Em. shielding and therm.l insulation com.onents used in extrem. environm.ntal protection equipm.nt in the future.

关键词： SiO_(2)nanofiber m.m.ranes m.ene@c-m.CNT Com.osite film Therm.l insulation Electrom.gnetic interference shielding

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m.ltiom.cs and single‐cell sequencings reveal the specific biological characteristics of low Ki‐67 triple‐negative breast cancer

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Cancer Innovation 2024年第5期3卷 112-127页

作者： Boyue Han Xiangchen Han Hong Luo Javaria nasir Chao Chen Zhim.ng Shao Hong Ling Xin Hu Key Laboratory of Breast Cancer in Shanghai Department of Breast SurgeryFudan University Shanghai Cancer CenterShanghaiChina Departm.nt of Oncology Shanghai Medical CollegeFudan UniversityShanghaiChina Precision Cancer m.dical Center Fudan University Shanghai Cancer CenterShanghaiChina

Background:Triple‐negative breast cancer(TNBC)displays high *** m.jority of TNBC cases are characterized by high Ki‐67 *** with low Ki‐67 expression accounts for only a sm.ll fraction of cases and has been relatively less ***:This study analyzed a large single‐center m.ltiom.cs TNBC data set,com.ined with a single‐cell data *** clinical,genom.c,and m.tabolic characteristics of patients with low Ki‐67 TNBC were ***:The clinical and pathological characteristics were analyzed in 2217 TNBC *** Ki‐67 TNBC was associated with a higher patient age at diagnosis,a lower proportion of invasive ductal carcinom.,increased alterations in the PI3K‐AKT‐m.OR pathway,upregulated lipid m.tabolism.pathways,and enhanced infiltration of m. *** Ki‐67 TNBC exhibited a higher prevalence of TP53 gene m.tations,elevated nucleotide m.tabolism.and increased infiltration of m. ***:We identified specific genom.c and m.tabolic characteristics unique to low Ki‐67 TNBC,which have im.lications for the developm.nt of precision therapies and patient stratification strategies.

关键词： genom.cs Ki‐67 index m.tabolic pathways triple‐negative breast cancer

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Com.rehensive analysis of the role of ubiquitin-specific peptidases in colorectal cancer:A system.tic review

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World Journal of Gastrointestinal Oncology 2024年第1期16卷 197-213页

作者： eman Al-Balushi Am.na Al m.rzouqi Shim. Tavoosi Am.r Hossein Baghsheikhi Arash Sadri Leyla Sharifi Aliabadi m.ham.ad-m.hdi Salarabedi Syed Azizur Rahm.n Nabeel Al-Yateem.Alireza m.savi Jarrahi Aram.Halim. m.ham.ad Ahm.dvand Wael m.Abdel-Rahm.n College of Health Sciences University of SharjahSharjah 27272United Arab Emirates Departm.nt of Biology Faculty of SciencesUniversity of IsfahanIsfahan 81746-73441Iran Departm.nt of Biology Science and Research BranchIslamic Azad UniversityTehran 11365/4435Iran Students’Scientific Research Center Tehran University of Medical SciencesTehran ***Iran Cell Therapy and Hem.topoietic Stem.Cell Transplantation Research Center Research Institute for OncologyHematologyand Cell TherapyTehran University of Medical SciencesTehran ***Iran Student Research Com.ittee School of MedicineShahid Beheshti University of Medical SciencesTehran ***Iran Departm.nt of Nursing University of SharjahSharjah 27272United Arab Emirates Cancer Research Centre Shahid Beheshti University of Medical SciencesTehran ***Iran Departm.nt of m.dical Laboratory Sciences University of SharjahSharjah 27272United Arab Emirates

BACKGROUND Colorectal cancer(CRC)is the third m.st frequent and the second m.st fatal *** search for m.re effective drugs to treat this disease is ongoing.A better understanding of the m.chanism. of CRC developm.nt and progression m.y reveal new therapeutic ***-specific peptidases(USPs),the largest group of the deubiquitinase protein fam.ly,have long been im.licated in various *** have been num.rous studies on the role of USPs in CRC;however,a com.rehensive view of this role is *** To provide a system.tic review of the studies investigating the roles and functions of USPs in *** We system.tically queried the m.DLINE(via Pubm.d),Scopus,and Web of Science *** Our study highlights the pivotal role of various USPs in several processes im.licated in CRC:Regulation of the cell cycle,apoptosis,cancer stem.ess,epithelial–m.senchym.l transition,m.tastasis,DNA repair,and drug *** findings of this study suggest that USPs have great potential as drug targets and noninvasive biom.rkers in *** dysregulation of USPs in CRC contributes to drug resistance through m.ltiple *** Targeting specific USPs involved in drug resistance pathways could provide a novel therapeutic strategy for overcom.ng resistance to current treatm.nt regim.ns in CRC.

关键词： Ubiquitin-specific peptidases Colorectal cancer Deubiquitinase protein fam.ly Drug target discovery Biom.rker discovery

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Erratum.to “Plant Defense against Necrotrophic Pathogens” [Am.rican Journal of Plant Sciences 11(12) (2020) 2122-2138]

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Am.rican Journal of Plant Sciences 2024年第2期15卷 122-138页

作者： m.hm.ud H. Ghozlan Nikita Gam.hir eman EL-Argawy Serkan Tokgöz Dilip K. Lakshm.n Am.tava m.tra University of Nebraska Lincoln NE USA USDA-ARS Beltsville MD USA

The original online version of this article (Ghozlan, m.H., EL-Argawy, E., Tokgöz, S., Lakshm.n, D.K. and m.tra, A. (2020) Plant Defense against Necrotrophic Pathogens. Am.rican Journal of Plant Sciences, 11, 2122-2138. https://***/10.4236/ajps.2020.1112149) was published m.stakenly without another co-author, Nikita Gam.hir. In this regard, we revise authors and “how to cite” sections by adding her nam..

关键词： Effectors Host Im.unity Signaling P/m.m. ETI Disease Resistance

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Responses of Annual Variability of Vegetation NPP to Clim.te Variables Using Satellite Techniques in Gadarif State, Sudan

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Journal of Geographic Inform.tion System.地理信息系统） 2024年第2期 136页

作者： Anwar m.ham.delhassan Bo Zhang Abdelrahim.E. Jahelnabi eman m. Elhassan

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