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Effects of the Produced Water from a Sour Oilfield in South Kuwait on the Production Tubing

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Journal of Water Resource and Protection 2023年第7期15卷 358-375页

作者： Feras Al Salem Vijo Poulose Kazuyuki Kawamura Arata Nakamura hakim saibi Thies Thiemann Department of Biology College of Science United Arab Emirates University Al Ain United Arab Emirates Department of Chemistry College of Science United Arab Emirates University Al Ain United Arab Emirates Technology and Research Center Japan Organization for Metals and Energy Security (JOGMEC) Chiba Japan Department of Geosciences College of Science United Arab Emirates University Al Ain United Arab Emirates

Kuwaiti oil production faces a growing challenge in the increasing quantities of produced water generated in the production of oil. The high water cut of the produced fluid from the wells and the high salinity of the produced water lead to significant degradation of subsurface equipment, specifically the production tubing. Debris generated through the degradation of the inner part of the tubing becomes a constituent of the scaling that deposits in the tubing and blocks the flow of the production fluid, inducing higher maintenance costs. This paper looks at the characteristics of the scaling in regard to the produced water and outlines the economic impact of the produced water induced degradation of the tubing structure.

关键词： Produced Water Scaling Production Tubing Corrosion SEM-EDS WD-XRF XPS

Hydrometallurgy two stage process for preparation of (Nd,La,Ce)_(2)O_(3) from end-of-life NiMH batteries

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Journal of Rare Earths 2024年第2期42卷 415-423,I0007页

作者： Karim Tanji Khalid Ouzaouit Mohamed Belghiti Isam Lamsayety hakim Faqir Intissar Benzakour Centre de recherche REMINEX-Groupe MANAGEM MarrakechMorocco

The present work aims to investigate the recovery of light rare earth elements(LREEs) oxides from end-oflife NiMH batteries using a hydro metallurgical process followed by effective *** operational leaching parameters such as phosphoric acid concentration,temperature,and the solid-liquid ratio were first optimized by Box-Behnken *** results reveal that under optimum conditions([H_(3)PO_(4)]=2 mol/L,T=80℃,and S/L=1:10 g/mL) the leaching efficiencies of Ni,Co reach 98.1% and99.3%.While La,Ce,and Nd elements remain in the leaching residue as(La,Ce,Nd)PO_(4) with yields of 98.2%,98.6%,and 99.6% for La,Ce,and Nd,***,the(La,Ce,Nd)PO_(4) is leached with HCl acid,then the rare earth oxalate was precipitated using oxalic acid at a pH of 1.8 and then the product was calcined at 800℃ for 2 h in order to synthesize the(Nd,La,Ce)_(2)O_(3).The analysis using scanning electron microscopy(SEM) coupled with energy dispersive X-ray spectroscopy(EDX) confirms the homogeneity of(Nd,La,Ce)_(2)O_(3) particles that have two morphologies,i.e.,flower and sticks with a particle size between 3and 6 μ*** unit cell parameters of(Nd,La,Ce)_(2)O_(3) were calculated after Rietveld refinement of the XRD patterns,in the space group of Fm-3m are a=b=c=0.57921 nm and the volume equal to 0.194322 nm^(3).

关键词： NiMH batteries Hydrometallurgical process Leaching Phosphoric acid Box-Behnken Light rare earth oxides

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Fabrication of La,Ce co-doped ZnO nanorods for improving photodegradation of methylene blue

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Journal of Rare Earths 2024年第1期42卷 76-83,I0003页

作者： Erfan hakim Azmal Zaid Jin-Chung Sin Sze-Mun Lam Abdul Rahman Mohamed School of Chemical Engineering Universiti Sains Malaysia(USM)14300Nibong TebalPenangMalaysia College of Environmental Science and Engineering Guilin University of TechnologyGuilin541004China Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control Guilin University of TechnologyGuilin541004China Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area Guilin University of TechnologyGuilin541004China Faculty of Engineering and Green Technology Universiti Tunku Abdul RahmanJalan UniversitiBandar Barat31900KamparPerakMalaysia

La,Ce co-doped ZnO nanorods(ZnLC)were synthesized through a one-step solvothermal *** photocatalysts were characterized by X-ray diffraction,Raman spectroscopy,field-emission scanning electron microscopy,energy dispersive X-ray,transmission electron microscopy,UV-vis diffuse reflectance spectroscopy and photo luminescence *** La and Ce doping enhanced the visible light absorption ability of ZnLC and a red shift was detected for *** simulated solar light irradiation,the ZnO doped with 3 at%La and 1 at%Ce(ZnLC1)degrades methylene blue(MB)more effectively than those of pure ZnO,La-doped ZnO(ZnL)and commercially available *** improved photocatalytic performance of ZnLC1 can be attributed to the high charge separation efficiency as demonstrated by the photoluminescence ***,the photocatalytic experiments reveal that several parameters have their own impact on the MB *** a variety of radical scavengers,it is discovered that superoxide anion radical plays a crucial role in the degradation of *** ZnLC1 is also reused several times without noticeable decrease of photoactivity,indicating that it has a substantial potential for environmental remediation applications.

关键词： ZnO Lanthanum Cerium Co-doping Photodegradation Rare earths

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When the Stars Align: Hypertriglyceridemic Pancreatitis Is Inevitable

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International Journal of Clinical Medicine 2024年第7期15卷 233-239页

作者： Kamel El-Reshaid Abass hakim Reji Philip Athyal Department of Medicine Faculty of Medicine Kuwait University Kuwait Kuwait Department of Nephrology Amiri Hospital Ministry of Health Kuwait Kuwait Department of Radiology Amiri Hospital Ministry of Health Kuwait Kuwait

Background: Acute pancreatitis (AP) is an inflammatory process affecting the pancreas. Hypertriglyceridemic AP (HTAP) is its third leading cause after gallstones followed by alcohol use. It develops when stars align viz. triggers (acquired surges) in patients with genetic hypertriglyceridemia. Case: severe and acute pancreatitis had developed in a 57-year-old man with type IIb familial hyperlipidemia after heavy fatty meals. The acute phase was controlled by holding oral intake with weekly Evolocumab therapy and long-term prevention by weight reduction and Fenofibrate alone. His pancreatic endocrine and exocrine functions remained normal after 2 years of follow-up. Conclusion: Those four measures were safe, practical and effective for short- and long-term management of HTAP.

关键词： Fenofibrate Genetic Hypertriglyceridemia Hyperlipidemia Pancreatitis Triggers Weight Reduction

Plant Nitrogen Metabolism: Balancing Resilience to Nutritional Stress andAbiotic Challenges

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Phyton-International Journal of Experimental Botany 2024年第3期93卷 581-609页

作者： Muhammad Farhan Manda Sathish Rafia Kiran Aroosa Mushtaq Alaa Baazeem Ammarah Hasnain Fahad hakim Syed Atif Hasan Naqvi Mustansar Mubeen Yasir Iftikhar Aqleem Abbas Muhammad Zeeshan Hassan Mahmoud Moustafa Department of Plant Pathology Faculty of Agricultural Sciences&TechnologyBahauddin Zakariya UniversityMultan60800Pakistan Centro de Investigación de Estudios Avanzados del Maule(CIEAM) Vicerrectoría de Investigación y PostgradoUniversidad Católica del MauleTalca3460000Chile College of Food Science and Nutritional Engineering China Agricultural UniversityBeijingChina Department of Biology College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of Biotechnology Faculty of Biological SciencesLahore University of Biological and Applied SciencesLahorePakistan Department of Plant Pathology College of AgricultureUniversity of SargodhaSargodha40100Pakistan Department of Agriculture and Food Technology Karakorum International UniversityGilgitPakistan Department of Biology Faculty of ScienceKing Khalid UniversityAbhaSaudi Arabia

Plant growth and resilience to abiotic stresses,such as soil salinity and drought,depend intricately on nitrogen *** review explores nitrogen’s regulatory role in plant responses to these challenges,unveiling a dynamic interplay between nitrogen availability and abiotic *** the context of soil salinity,a nuanced rela-tionship emerges,featuring both antagonistic and synergistic interactions between salinity and nitrogen ***-induced chlorophyll depletion in plants can be alleviated by optimal nitrogen supplementation;however,excessive nitrogen can exacerbate salinity *** delve into the complexities of this interaction and its agri-cultural ***,a vital element within essential plant structures like chloroplasts,elicits diverse responses based on its *** review comprehensively examines manifestations of nitrogen deﬁciency and toxicity across various crop types,including cereals,vegetables,legumes,and ***,we explore the broader consequences of nitrogen products,such as N_(2)O,NO_(2),and ammonia,on human ***-ing the intricate relationship between nitrogen and salinity,especially chloride accumulation in nitrate-fed plants and sodium buildup in ammonium-fed plants,is pivotal for optimizing crop nitrogen ***,prudent nitrogen use is essential,as overapplication can exacerbate nitrogen-related *** Use Efﬁ-ciency(NUE)is of paramount importance in addressing salinity challenges and enhancing sustainable crop *** this goal requires advancements in crop varieties with efﬁcient nitrogen utilization,pre-cise timing and placement of nitrogen fertilizer application,and thoughtful nitrogen source selection to mitigate losses,particularly urea-based fertilizer *** review article delves into the multifaceted world of plant nitrogen metabolism and its pivotal role in enabling plant resilience to nutritional stress and abiotic chall

关键词： Synthetic nitrogen nitrogen signaling sustainable agriculture eutrophication ammonium nitrate

Driving forces of continuing evolution of rotaviruses

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World Journal of Virology 2024年第2期13卷 58-70页

作者： Mohamad Saifudin hakim Faris Muhammad Gazali Suci Ardini Widyaningsih Mohammad Khalid Parvez Postgraduate School of Molecular Medicine Erasmus MC-University Medical CenterRotterdam 3015GDNetherlands Viral Infection Working Group International Society of Antimicrobial ChemotherapyLondon EC4R 9ANUnited Kingdom Master Program in Biotechnology Postgraduate SchoolUniversitas Gadjah MadaYogyakarta55281Indonesia Master of Medical Sciences in Clinical Investigation Harvard Medical SchoolBostonMA 02115United States Department of Pharmacognosy College of PharmacyKing Saud UniversityRiyadh11451Saudi Arabia

Rotaviruses are non-enveloped double-stranded RNA virus that causes acute diarrheal diseases in children(<5 years).More than 90%of the global rotavirus infection in humans was caused by Rotavirus group *** infection has caused more than 200000 deaths annually and predominantly occurs in the low-income *** evolution is indicated by the strain dynamics or the emergence of the unprecedented *** major factors that drive the rotavirus evolution include the genetic shift that is caused by the reassortment mechanism,either in the intra-or the ***,other factors are also known to have an impact on rotavirus *** review discusses the structure and types,epidemiology,and evolution of *** article also reviews other supplemental factors of rotavirus evolution,such as genetic reassortment,mutation rate,glycan specificity,vaccine introduction,the host immune respo-nses,and antiviral drugs.

关键词： Rotavirus Epidemiology Evolution Reassortment Vaccine

Effect of Adhesive Type on the Quality of Coconut Shell Charcoal Briquettes Prepared by the Screw Extruder Machine

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Journal of Renewable Materials 2024年第2期12卷 381-396页

作者： Samsudin Anis Deni Fajar Fitriyana Aldias Bahatmaka Muhammad Choirul Anwar Arsyad Zanadin Ramadhan Fajar Chairul Anam Raffanel Adi Permana Ahmad Jazilussurur hakim Natalino Fonseca Da Silva Guterres Mateus De Sousa Da Silva Department of Mechanical Engineering Faculty of EngineeringUniversitas Negeri SemarangGunung patiSemarang50229Indonesia Arka Tama Indonesia Co.Ltd.KarawangWest Java41382Indonesia Department of Mechanical Engineering Dili Institute of TechnologyAi-meti Laran StreetDiliTimor Leste

Indonesia is one of the largest coconut-producing countries in the *** utilization of coconut shell waste into briquettes will increase the selling value and become a great export ***,the effect of adhesives on the quality of coconut shell charcoal briquettes made using screw extruder machine has not been widely *** study aims to determine the effect of adhesive type on the quality of coconut shell charcoal *** process of fabricating briquettes in this study included crushing,mixing,blending,pressing,and *** the mixing process,3 types of adhesives were used,namely tapioca flour(Briquette_1),cassava flour(Briquette_2),and modified cassava flour(Briquette_3)with a concentration of 5%of the weight of coconut shell charcoal *** quality of the resulting briquettes and commercial briquettes will be evaluated by moisture content,ash content,volatile matter,fixed carbon,calorific value,density,compressive,and drop test *** results of this research showed that the type of adhesive had a significant effect on the quality of the briquettes *** Briquette_1 had better quality than commercial briquettes(Briquette_4)and other briquette *** test results showed that Briquette_1 produced briquettes with better compressive strength and friability than the other specimens,at 6.95 N/mm^(2) and 4.44%,*** moisture content,ash content,fixed carbon,and calorific value of Briquette_1 have met the requirements set by the Indonesian National Standard(SNI)number ***,the volatile matter content and density of Briquette_1 are by the standards of Japan and the United States America(USA).

关键词： Coconut charcoal briquettes adhesive mixing blending pressing

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蒙东黑土区坡耕地退化现状分析

中国水土保持科学(中英文) 2024年

作者：张守昊孙蕾 JAMSHIDI Abdul hakim 牛勇刘霞 FAN Zhaofei 南京林业大学南方现代林业协同创新中心/江苏省水土保持与生态修复重点实验室山东农业大学林学院山东省土壤侵蚀与生态修复重点实验室/国家林业局泰山森林生态站 .School of Forestry and Wildlife Sciences Auburn University

土壤退化严重威胁蒙东黑土区粮食安全与黑土的可持续利用，为理清区域坡耕地退化现状，选择内蒙古莫力达瓦达斡尔族自治旗为研究区，以坡耕地为研究对象，基于最小数据集、序贯高斯模拟和数理统计等方法，探索蒙东黑土区坡耕地退化程度... 详细信息

土壤退化严重威胁蒙东黑土区粮食安全与黑土的可持续利用，为理清区域坡耕地退化现状，选择内蒙古莫力达瓦达斡尔族自治旗为研究区，以坡耕地为研究对象，基于最小数据集、序贯高斯模拟和数理统计等方法，探索蒙东黑土区坡耕地退化程度空间分布及退化形式和主要影响因素。结果表明：1）蒙东黑土区坡耕地退化程度评价最小数据集包括有机质、腐殖质层厚度、水稳性大团聚体、pH、坡度和垄坡角；2）蒙东黑土区坡耕地土壤退化指数分布范围为0.0811-0.7998，轻度退化和中度退化坡耕地共占坡耕地总面积的83%；3）土壤退化指数与腐殖质层厚度的相关性最高（P<0.01），与坡度和垄坡角呈显著正相关关系（P<0.05），坡度和垄坡角的相关系数为0.356（P<0.05）。综上，蒙东黑土区坡耕地退化程度自东北向西南逐渐递增，主要表现为腐殖质层流失和坡耕地面积的缩减，坡度和垄坡角的交互作用可能是退化的主要影响因素。研究结果可为蒙东黑土区坡耕地退化防治提供数据支撑。

关键词：坡度垄坡角腐殖质层厚度土壤退化指数评价指标体系

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千赫兹级介质阻挡放电对亚甲基蓝溶液的降解

东华大学学报(自然科学版) 2024年

作者：刘伊静陈兴旺崔浩栋 SSEKASAMBA hakim 唐晓亮邱高东华大学理学院

针对染料废水具有色度大、成分复杂、高盐度、高浓度、难降解等特点，采用千赫兹级大气压介质阻挡放电对亚甲基蓝溶液模拟的染料废水进行处理，研究不同放电条件对亚甲基蓝降解率的影响。使用电流、电压波形图和等离子体发射光谱对介质... 详细信息

针对染料废水具有色度大、成分复杂、高盐度、高浓度、难降解等特点，采用千赫兹级大气压介质阻挡放电对亚甲基蓝溶液模拟的染料废水进行处理，研究不同放电条件对亚甲基蓝降解率的影响。使用电流、电压波形图和等离子体发射光谱对介质阻挡放电进行诊断；通过吸光度计算降解率，分析不同放电间隙、针尖形状、放电气氛环境下的亚甲基蓝降解情况。结果表明，0.44 cm放电间隙、斜口针尖、更细的针管可以提高亚甲基蓝降解率，无须另外通入气体、直接以空气为放电气氛的选择更为高效和经济。千赫兹级介质阻挡放电可有效应用于亚甲基蓝溶液的降解，在处理染料废水方面有着广阔的应用前景。

关键词：低温等离子体千赫兹级介质阻挡放电亚甲基蓝降解