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Selective metal leaching from technosols based on synthetic root exudate composition

Journal of Environmental Sciences 2020年第10期32卷 85-92页

作者： hussein jaafar kanbar Zeinab Matar Ghina Abed-AlHadi Safa Veronique Kazpard Research and Aralysis Platform for Enuironmental Sciences(PRASE) Doctoral School of Sciences and Techrology(EDST)The Lebanese UniversityP.O.5Rafic Hariri CampusHadatLebanon Department of Chemistry UmeàUniversitySE-90187UmeàSweden Department of Earth and Life Sciences Faculty of SciencesThe Lebanese UniversityRafic Hariri CampusHadatLebanon Laboratory of Georesources Geosciences and Enuironment(1.2GE)Faculty of SciencesThe Lebanese UniversityFanarLebanon

This study focused on metal release from technosols induced by synthetic root exudate(SRE).The effect of SRE composition on metal release was studied using six *** was done by treating the technosols with SRE solutions having varying concentrations of low molecular weight organic acids (LMWOAs),namely oxalic,citric,and malic ***,the physico-chemical parameters (p H and electric conductivity),Ca,Mg,Fe,Zn,and Cu release (by atomic absorption spectroscopy,AAS),chemical changes (by Fourier transform infrared,FT-IR),and organic parameters (by fluorescence) were *** release showed to be dependent on the SRE composition and technosol *** acid selectively released Ca,Mg,Zn,and Cu from technosols in a concentration-dependent manner;oxalic acid showed a significant role in the release of Mg and *** relatively high LMWOA concentrations,particulate organo-mineral complexes ***,technosol weathering was seen by the dissolution of humic substances and ferriallophanes,which in turn caused metal ***,re-precipitation of these phases showed to re-sorb metals,thus underestimating the role of LMWOAs in metal ***,the selective metal leaching was highly dependent on the SRE composition and LMWOA concentrations on one hand,and on the mineral,organic,and organo-mineral components of the technosols on the *** understanding of such processes is crucial for proposing and implementing environmental management strategies to reduce metal leaching or for the beneficial re-usage of metals (e.g.,for agromining) from technosols.

关键词： Technosols Oxalic acid Citric acid Metals Desorption Organo-mineral complexes

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Overview of Jute Fibre as Thermoplastic Matrix Polymer Reinforcement

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Journal of Renewable Materials 2024年第3期12卷 457-483页

作者： Tezara Cionita Mohammad Hazim Mohamad Hamdan Januar Parlaungan Siregar Deni Fajar Fitriyana Ramli Junid Wong Ling Shing Jamiluddin jaafar Agustinus Purna Irawan Teuku Rihayat Rifky Ismail Athanasius Priharyoto Bayuseno Emilianus Jehadus Faculty of Engineering and Quantity Surveying INTI International UniversityNilaiNegeri Sembilan71800Malaysia Technical Department Dyna Forming Engineering Technology(DFETECH)SDN.BHD.SerembanNegeri Sembilan70300Malaysia Faculty of Mechanical and Automotive Engineering Technology UniversitiMalaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Automotive Engineering Center(AEC) UniversitiMalaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Department of Mechanical Engineering Universitas Negeri SemarangKampus SekaranGunungpatiSemarang50229Indonesia Faculty of Manufacturing and Mechatronic Engineering Technology Universiti Malaysia Pahang Al-Sultan AbdullahPekanPahang26600Malaysia Faculty of Health and Life Sciences INTI International UniversityNilai71800Malaysia Faculty of Mechanical and Manufacturing Engineering Universiti Tun Hussein Onn MalaysiaParit RajaBatu PahatJohor86400Malaysia Faculty of Engineering Universitas TarumanagaraJakarta Barat11440Indonesia Department of Chemical Engineering Politeknik Negeri LhokseumaweLhokseumawe24301Indonesia Department of Mechanical Engineering Faculty of EngineeringDiponegoro UniversitySemarang50275Indonesia Department of Mathematics Education Universitas Katolik Indonesia Santu Paulus RutengNusa Tenggara Timur8651Indonesia

Recent decades have seen a substantial increase in interest in research on natural fibres that is aligned with sustainable development goals(SDGs).Due to their renewable resources and biodegradability,natural fiberreinforced composites have been investigated as a sustainable alternative to synthetic materials to reduce the usage of hazardous waste and environmental *** the natural fibre,jute fibre obtained from a bast plant has an increasing trend in the application,especially as a reinforcement *** research works have been performed on jute fibre with regard to reinforced thermoset and thermoplastic ***,current demands on sustainable materials have required new developments in thermoplastic *** this paper,the author reviews jute plants as reinforcement materials for thermoplastic matrix *** review provides an overview of the sustainability of jute plants as reinforcement material for thermoplastic matrix *** overview on jute based thermoplastic composites focused on the thermal behavior and mechanical *** from physical,chemical,and mechanical properties,the study also covers the current and perspectives for future research challenges faced by the researchers on jute fibre reinforced thermoplastic composites.

关键词： Jute fibre sustainable development goals(SDGs) natural fibre thermoplastic composite sustainable manufacturing

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Root cause of sand production and methodologies for prediction

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Petroleum 2021年第3期7卷 263-271页

作者： Surej Kumar Subbiah Arifin Samsuri Assef Mohamad-hussein Mohd Zaidi jaafar Ying Ru Chen Rajeev Ranjan Kumar Department of Petroleum Engineering Faculty of EngineeringUniversiti Teknologi MalaysiaMalaysia Schlumberger GatwickUnited Kingdom Schlumberger DohaQatar Schlumberger MumbaiIndia

The consequences of sandstone reservoir rock failure may lead to sand *** phenomenon can have negative impact on lifting cost and economic of any field *** erosion due to sanding can lead to loss of integrity and hydrocarbon *** decision on the type of completion can risk the viability of the *** facilitate best sand management over the life of a field and to maintain economical productivity,accurate prediction of sand production volume/rates is needed to increase both productivity and the ultimate recovery of the hydrocarbon while keeping the operating cost *** paper summarizes the sand production modeling for onset and volume of sand namely technology that required to improve understanding on sand production and *** main questions will be answered,why industry needs to worry about sand production,what are the available technologies to predict sanding volume/rates finally,how the current technologies can be improved to estimate sand production volume/rates.

关键词： Sand production Sanding rates Geomechanics Sand control Constitutive model Failure criteria

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Pancreaticoduodenectomy in the Middle East: Achieving optimal results through specialization and standardization

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Hepatobiliary & Pancreatic Diseases International 2019年第5期18卷 478-483页

作者： Walid Faraj hussein Nassar Ahmad Zaghal Deborah Mukherji Ali Shamseddine Mariam Kanso Rola F. jaafar Mohamad Khalife Liver Transplantation and Hepatopancreaticobiliary Surgery Department of General SurgeryAmerican University of Beirut Medical CenterBeirutLebanon Department of Oncology American University of Beirut Medical CenterBeirutLebanon

Background: Pancreaticoduodenectomy is a challenging surgical intervention that remains the cornerstone in the treatment of localized peri-ampullary pathologies. The concept of treatment standardization has been well-established in many high-volume centers in the world. Here, we present our experience in pancreaticoduodenectomy from 1994 to 2015. Methods: We performed a retrospective review of the medical charts of patients who underwent pancreaticoduodenectomy at our institution. Data was entered to SPSS statistical software and analyzed. The Mann-Whitney U and Fisher’s exact tests were used to report statistical differences between groups. Results: Of the 370 patients who underwent pacreaticoduodenectomy, 300 were analyzed. The 1-, 3-, 5- and 10-year survival rates were 85%, 35%, 15%, and 7%, respectively with a 30-day mortality rate of 5.0%(15 patients). The median age of the patients was 61 (13-84) years, with 193 (64.3%) males and 107 (35.7%) females. The median operative time was 300 (130-570) min. The median postoperative length of hospital stay was 12 (5-76) days. Thirty-two patients required re-laparotomies;10 for pancreatic leak, 7 for biliary leak and 15 for control of bleeding. Seventy-five (25.0%) patients developed pancreatic fistulae. Delayed gastric emptying was present in 31 (10.3%) patients. A significant improvement in surgical outcome was observed in cases done after 2008 which indicates the important role of specialized team in surgical management. Conclusions: The number of patients undergoing pancreaticoduodenectomy has been increasing annually over the past twenty-two years in our institution with results comparable to published series from high-volume centers. Through standardization of surgical techniques and perioperative management carried out by a specialist team, our results continue to improve despite the increasing complexity of cases referred to our unit.

关键词： Pancreatic cancer Pancreaticoduodenectomy Middle East

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Primary non hodgkin's lymphoma of lacrimal sac presented as recurrent acute dacryocystitis: A case report

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Journal of Acute Disease 2017年第3期6卷 137-140页

作者： Noor Shirlyna Irma Ngah Ramiza Ramza Ramli Adil hussein Hasnan jaafar Department of Ophthalmology School of Medical SciencesUniversitiSains Malaysia16150KubangKerianKelantanMalaysia Department of Otorhinolaryngology School of Medical SciencesUniversitiSains Malaysia16150Kubang KerianKelantanMalaysia Department of Pathology School of Medical SciencesUniversitiSains Malaysia16150Kubang KerianKelantanMalaysia.

Primary non Hodgkin's lymphoma of the lacrimal sac is uncommon but potentially delay in diagnosis as it may mimic the presentation of primary post saccal nasolacrimal duct obstruction. In this article, we reported a case of primary non Hodgkin's lymphoma of the lacrimal sac presented with recurrent acute dacryocystitis in a young lady. A 28 years old Malay lady had history of persistent epiphora on left eye for 4 years. Prior to presentation to our clinic, it was preceded by progressive recurrent painful medial canthal swelling for 6 months duration. Clinical diagnosis of post saccal naso lacrimal duct obstruction was made and otorhinolaryngology assessment revealed intranasal mass. Endoscopic excision was done showed diffuse large B cell lymphoma on histology. The patient was started on 6 cycles of chemotherapy which subsequently result in no recurrence of the tumour post chemotherapy. Any case of post saccal nasolacrimal duct obstruction should be investigated thoroughly as it may become as a presentation of other sinister pathology.

关键词： Dacryocystitis nasolacrimal duct obstruction primary non Hodgkin's lymphoma

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Synthesis and controlled release of cloprop herbicides from cloprop-layered double hydroxide and cloprop-zinc-layered hydroxide nanocomposites

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Open Journal of Inorganic Chemistry 2014年第1期4卷 1-9页

作者： Norhayati Hashim Mohd Zobir hussein Illyas Md Isa Azlan Kamari Azmi Mohamed Adila Mohamad jaafar Hafsah Taha Department of Chemistry Faculty of Science and Mathematics Universiti Pendidikan Sultan Idris Tanjong Malim Malaysia Department of Chemistry Faculty of Science and Mathematics Universiti Pendidikan Sultan Idris Tanjong Malim Malaysia Nanotechnology Research Centre Faculty of Science and Mathematics Universiti Pendidikan Sultan Idris Tanjong Malim Malaysia Department of Chemistry Faculty of Science Universiti Putra Malaysia Serdang Malaysia

Two phenoxyherbicide nanocomposites, namely cloprop-layered double hydroxide and cloprop-zinc- layered hydroxide nanocomposites, have been synthesized by using co-precipitation and direct reaction method. PXRD pattern showed an expansion of interlayer spacing with the value of 21.0 Åand 22.7 Åfor cloprop-layered double hydroxide and cloprop-zinc-layered hydroxide nanocomposite, respectively. It is evident from FTIR and elemental analyses that both nanocomposites were successfully intercalated between the interlayers of layered metal hydroxide. Controlled release of cloprop anion from interlayer of nanocomposites for both cloprop-layered double hydroxide and cloprop-zinc-layered hydroxide nanocomposite into phosphate solution was rapid initially and slow thereafter. The percentage of accumulated release of cloprop anion from cloprop-zinc-layered hydroxide nanocomposite was slightly higher than that from cloprop-layered double hydroxide nanocomposite. Kinetic behavior of cloprop release was governed by pseudo-second-order for cloprop-layered double hydroxide nanocomposite while parabolic diffusion for cloprop-zinc-layered hydroxide nanocomposite. Results from this study highlight the potential of both nanocomposites as capsulated material for controlled release of cloprop phenoxyherbicides anion.

关键词： Cloprop Cloprop-Layered Double Hydroxide Cloprop-Zinc-Layered Hydroxide Nanocomposite Controlled Release Kinetic Study

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Fabrication and characterization of affordable hydrophobic ceramic hollow fibre membrane for contacting processes

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Journal of Advanced Ceramics 2017年第4期6卷 330-340页

作者： Mohammed Abdulmunem ABDULHAMEED Mohd Hafiz Dzarfan OTHMAN Haider Nadhom Azziz Al JODA Ahmad Fauzi ISMAIL Takeshi MATSUURA Zawati HARUN Mukhlis A.RAHMAN Mohd Hafiz PUTEH Juhana jaafar Advanced Membrane Technology Research Centre(AMTEC) Faculty of Chemical and Energy EngineeringUniversiti Teknologi Malaysia81310 UTM Johor BahruJohorMalaysia Department of Petroleum and Petrochemical Engineering Engineering CollegeKerbala University56001 KerbalaIraq Department of Chemical and Biological Engineering University of OttawaOttawaOntarioK1N 6N5Canada Advanced Manufacturing&Materials Centre(AMMC) Faculty of Mechanical and Manufacturing EngineeringUniversiti Tun Hussein Onn MalaysiaParit Raja86400 Batu PahatJohorMalaysia Department of Environmental Engineering Faculty of Civil EngineeringUniversiti Teknologi Malaysia81310 UTM Johor BahruJohorMalaysia

Affordable hydrophobic hollow fibre membranes were prepared using kaolin and alumina based ceramic powders via a combined phase inversion and sintering technique,followed by a grafting with fluoroalkylsilane(FAS).The crux of the matter in this paper is to study the changes in the properties of the hollow fibre membranes(gas permeation,mechanical strength,pore size,porosity,tortuosity,morphology,and contact angle)by the addition of alumina(Al2O3)to the pure kaolin with mono or multiparticle *** varying the overall loading and particle size of alumina addition,different morphologies of the membranes were obtained due to the differences in the path lengths during phase inversion process for each solvent and nonsolvent *** successful grafting with FAS was evidenced by the increase in contact angle from nearly equal to zero degree before grafting to 140°after ***-alumina-4,one of the hollow fibres fabricated in this work,achieved a mean pore size of 0.25μm with the bending strength of 96.4 MPa and high nitrogen permeance of 2.3×10^(-5) mol·m^(-2)·Pa^(-1)·s^(-1),which makes the hollow fibre most suitable for the membrane contactor application.

关键词： ceramic membrane contactor hollow fibre kaolin hydrophobic

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Evaluation of groundwater quality in the Dibdibba aquifer using hydrogeochemical and isotope techniques(Basrah Province,Iraq)

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Acta Geochimica 2022年第5期41卷 823-838页

作者： Inass A.Al-Mallah Wasan S.Al-Qurnawi hussein B.Ghalib Adnan B.Al Hawash Mariam H.Abdulameer Geology Department College of ScienceUniversity of BasrahBasrahIraq Director of the Scholarships and Cultural Relations Department Ministry of Higher Education and Scientific ResearchBaghdadIraq Department of Marine Chemistry and Environmental Pollution Marine Science CenterUniversity of BasrahBasrahIraq Biology Department College of Education-QurnaUniversity of BasrahBasrahIraq

The Dibdibba aquifer is considered to be the main source in the Al-Zubair area because agriculture depends on it to provide grazing water in the *** groundwater well samples were collected from the shallow Dibdibba Aquifer in Basra Province,southern Iraq,through the dry and wet period for 37 water samples were collected,to investigate the water quality deterioration,which is a hydrogeochemical modeling study where used to represent the groundwater mixing *** physicochemical parameter results show the spatial and temporal variations along the groundwater flow path.A Durov diagram of the studied samples shows water type Na-SO_(4),which is represented by mixing waters that may be affected by *** geochemical model ratio results of the groundwater well samples have shown high mixing ratios in the east and southeast regions of the study *** stable isotope composition of groundwater samples indicated that the recharge source of the Dibdibba aquifer is meteoric water influenced by vapor water from the Arabian *** stable isotope results have shown that the enrichment ofδO values is relatively linked with high salinity concentration and indicated the mixing between the upper unconfined and the lower confined,especially in the eastern and southern parts of the study *** findings of geochemical modeling and isotopes indicated an increasing groundwater quality ***,we recommended avoiding these areas for intensive extraction of groundwater.

关键词： Safwan–Zubair Dibdibba formation Geochemical modeling Mixing Stable isotopes Basra

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Chimp Optimization Algorithm Based Feature Selection with Machine Learning for Medical Data Classification

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Computer Systems Science & Engineering 2023年第12期47卷 2791-2814页

作者： Firas Abedi Hayder M.A.Ghanimi Abeer D.Algarni Naglaa F.Soliman Walid El-Shafai Ali Hashim Abbas Zahraa H.Kareem hussein Muhi Hariz Ahmed Alkhayyat Department of Mathematics College of EducationAl-Zahraa University for WomenKarbalaIraq Biomedical Engineering Department College of EngineeringUniversity ofWarith Al-AnbiyaaKarbalaIraq Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Computer Science Department Security Engineering LabPrince Sultan UniversityRiyadh11586Saudi Arabia Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt College of Information Technology Imam Jaafar Al-Sadiq UniversityAl-Muthanna66002Iraq Department of Medical Instrumentation Techniques Engineering Al-Mustaqbal University CollegeHillah51001Iraq Computer Engineering Department Mazaya University CollegeDhi QarIraq College of Technical Engineering the Islamic UniversityNajafIraq

Datamining plays a crucial role in extractingmeaningful knowledge fromlarge-scale data repositories,such as data warehouses and *** rule mining,a fundamental process in data mining,involves discovering correlations,patterns,and causal structures within *** the healthcare domain,association rules offer valuable opportunities for building knowledge bases,enabling intelligent diagnoses,and extracting invaluable information *** paper presents a novel approach called the Machine Learning based Association Rule Mining and Classification for Healthcare Data Management System(MLARMC-HDMS).The MLARMC-HDMS technique integrates classification and association rule mining(ARM)***,the chimp optimization algorithm-based feature selection(COAFS)technique is employed within MLARMC-HDMS to select relevant *** by the foraging behavior of chimpanzees,the COA algorithm mimics their search strategy for ***,the classification process utilizes stochastic gradient descent with a multilayer perceptron(SGD-MLP)model,while the Apriori algorithm determines attribute *** propose a COA-based feature selection approach for medical data classification using machine learning *** approach involves selecting pertinent features from medical datasets through COA and training machine learning models using the reduced feature *** evaluate the performance of our approach on various medical datasets employing diverse machine learning *** results demonstrate that our proposed approach surpasses alternative feature selection methods,achieving higher accuracy and precision rates in medical data classification *** study showcases the effectiveness and efficiency of the COA-based feature selection approach in identifying relevant features,thereby enhancing the diagnosis and treatment of various *** provide further validation,we conduct detailed experiments on a benchmark

关键词： Association rule mining data classification healthcare data machine learning parameter tuning data mining feature selection MLARMC-HDMS COA stochastic gradient descent Apriori algorithm

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Computational Intelligence Driven Secure Unmanned Aerial Vehicle Image Classification in Smart City Environment

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Computer Systems Science & Engineering 2023年第12期47卷 3127-3144页

作者： Firas Abedi Hayder M.A.Ghanimi Abeer D.Algarni Naglaa F.Soliman Walid El-Shafai Ali Hashim Abbas Zahraa H.Kareem hussein Muhi Hariz Ahmed Alkhayyat Department of Mathematics College of EducationAl-Zahraa University forWomenKarbalaIraq Biomedical Engineering Department College of EngineeringUniversity ofWarith Al-AnbiyaaKarbalaIraq Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Security Engineering Lab Computer Science DepartmentPrince Sultan UniversityRiyadh11586Saudi Arabia Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt College of Information Technology Imam Jaafar Al-Sadiq UniversityAl-Muthanna66002Iraq Department of Medical Instrumentation Techniques Engineering Al-Mustaqbal University CollegeHillah51001Iraq Computer Engineering Department Mazaya University CollegeDhi QarIraq College of Technical Engineering The Islamic UniversityNajafIraq

Computational intelligence(CI)is a group of nature-simulated computationalmodels and processes for addressing difficult real-life *** CI is useful in the UAV domain as it produces efficient,precise,and rapid ***,unmanned aerial vehicles(UAV)developed a hot research topic in the smart city *** the benefits of UAVs,security remains a major challenging *** addition,deep learning(DL)enabled image classification is useful for several applications such as land cover classification,smart buildings,*** paper proposes novel meta-heuristics with a deep learning-driven secure UAV image classification(MDLS-UAVIC)model in a smart city *** purpose of the MDLS-UAVIC algorithm is to securely encrypt the images and classify them into distinct class *** proposedMDLS-UAVIC model follows a two-stage process:encryption and image *** encryption technique for image encryption effectively encrypts the UAV ***,the image classification process involves anXception-based deep convolutional neural network for the feature extraction ***,shuffled shepherd optimization(SSO)with a recurrent neural network(RNN)model is applied for UAV image classification,showing the novelty of the *** experimental validation of the MDLS-UAVIC approach is tested utilizing a benchmark dataset,and the outcomes are examined in various *** achieved a high accuracy of 98%.

关键词： Computational intelligence unmanned aerial vehicles deep learning metaheuristics smart city image encryption image classification

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