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Influence of Sludge Incineration Ash on Ryegrass Growth and Soil Phosphorus Status

Pedosphere 2019年第1期29卷 70-81页

作者： Claude-Alla JOSEPH lotfi khiari Jacques GALLICHAND Marc HBERT Ned BEECHER Department of Soil Science and Agrifood Engineering Laval University Ministry of Sustainable Development Environment and the Fight Against Climate Change (MDDELCC) North East Biosolids & Residuals Association (NEBRA)

Phosphorus(P) is a limited resource that could be depleted. Consequently, recycling the P contained in sewage sludge, including sewage sludge incineration ash(SIA), from wastewater treatment plants is a possibility to be explored. A greenhouse experiment using annual ryegrass(Lolium multiflorum L.) was performed with an experimental design of three completely randomized blocks of two soils and 29 treatments: one control without P and two levels of 9 and 26 kg total P ha^(-1) from 14 different sources: twelve SIAs(not contaminated by trace metals) from the US and Canada, one commercial synthetic fertilizer(triple superphosphate(TSP)), and one commercial rock phosphate(RP). Higher ryegrass biomass levels were achieved at the higher fertilization rate(26 kg total P ha^(-1))and when using the SIAs with the highest P solubility percentage(PSP)(≥ 54% of total P). The biomass increases following SIA application were as high as 29% and 59% more than the control for the sandy loam and clayey soil, respectively, but 40% less than in TSP for both soils. A similar behavior was observed for P uptake, with a maximum increase of 26% for the clayey soil, and 165% for the sandy loam soil. The ryegrass biomass and P uptake increases due to SIA application were larger than those due to RP application in the clayey soil, but similar to those in the sandy loam soil. The SIAs with a PSP of ≥ 54% significantly increased soil available P stocks and saturation. According to our findings, we conclude that the SIAs from municipal and agrifood industries have a potential for P agricultural recycling, but their efficiencies vary.

关键词： biomass P recycling P solubility percentage P uptake rock phosphate triple superphosphate

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Optimizing the dataset size of a topo-bathymetric survey for Hammam Debagh Dam, Algeria

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International Journal of Sediment Research 2018年第4期33卷 518-524页

作者： Djamel Bengora lotfi khiari Jacques Gallichand Noureddine Dechemi Silvio José Gumiere Department of Hydraulics Polytechnic National School Department of Soil and Agrifood Engineering Laval University

The capacity of water reservoirs may be considerably reduced by sediment transport and *** phenomenon may occur quickly in regions prone to erosion, such as Hammam Debagh Dam region in Algeria. For better management of water resources, it is important to estimate the volume of a reservoir by regular and frequent topo-bathymetric surveys. Topo-bathymetric surveys with a high point measurement density are expensive and time-consuming. To reduce this expense and to increase the frequency of topo-bathymetric surveys, it is required to optimize their size and density. The complete survey of the reservoir created by the Hammam Debagh Dam in Algeria was examined in comparison with 19 reduction subsets using geostatistics. The study showed that the complete dataset of 32,164 points, corresponding to a density of 42 points ha-1could be reduced to 10,000 points, i.e. 13 points ha-1,without affecting the estimation of the water volume in the reservoir. This reduction could considerably simplify the work load, reduce the expenses to do these surveys, and, therefore, allow for an increased frequency of topo-bathymetric surveys.

关键词： Dam Reservoir Silting Volume estimation Point measurement density Volume/elevation curve

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Post-discharge follow-up of patients with spine trauma in the National Spinal Cord Injury Registry of Iran during the COVID-19 pandemic:Challenges and lessons learned

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Chinese Journal of Traumatology 2024年第3期27卷 173-179页

作者： Zahra Azadmanjir Moein Khormali Mohsen Sadeghi-Naini Vali Baigi Habibollah Pirnejad Mohammad Dashtkoohi Zahra Ghodsi Seyed Behnam Jazayeri Aidin Shakeri Mahdi Mohammadzadeh Laleh Bagheri Mohammad-Sajad lotfi Salman Daliri Amir Azarhomayoun Homayoun Sadeghi-Bazargani Gerard O'reilly Vafa Rahimi-Movaghai Health Information Management Department School of Allied Medical SciencesTehran University of Medical SciencesTehranIran Sina Trauma and Surgery Research Center Tehran University of Medical SciencesTehranIran Department of Neurosurgery Lorestan University of Medical SciencesKhoram-AbadIran Department of Epidemiology and Biostatistics School of Public HealthTehran University of Medical SciencesTehranIran Patient Safety Research Center Clinical Rsearch Institute Urma Universty of Medical SciencesUrmaIran Erasmus School of Health Policy&Management(ESHPM) Erasmus University RotterdamRoterdamthe Netherlands Brain and Spinal Cord Injury Research Center Neuroscience InstituteTehran University of Medical SciencesTehranIran Students Scientifc Research Center(SSRC) Tehran University of Medical SciencesTehranIran Department of Neurosurgery Arak University of Medical SciencesArakIran Trauma Research Center Kashan University of Medical SciencesKashanIran Shahid Rahnemoun Hospital Shahid Sadoughi University of Medical SciencesYazdIran Trauma Nuring Rearch entre Faculty of Nursing and Midwifry Kahan Universty of Medical Sciences Kahan Iran Clinical Research Development Unit Imam Hossein HospitalShahroud University of Medical SciencesShahroudIran Research Center for Evidence Based Medicine Faculty of MedicineTabriz University of Medical SciencesTabrizIran Road Trafic Injury Research Center Tabriz University of Medical SciencesTabrizIran School of Public Health and Preventive Medicine Monash UniversityMelbourneAustralia National Trauma Research Institute The AlfredMelbourneAustralia Department of Neurosurgery Shariati HospitalTehran University of Medical SciencesTehranIran Universal Scientific Education and Research Network(USERN) TehranIran Institute of Biochemistry and Biophysics University of TehranTehranIran

Purpose:The purpose of the National Spinal Cord Injury Registry of Iran(NSCIR-IR)is to create an infrastructure to assess the quality of care for spine trauma and in this study,we aim to investigate whether the NSCIR-IR successfully provides necessary post-discharge follow-up data for these ***:An observational prospective study was conducted from April 11,2021 to April 22,2022 in 8 centers enrolled in NSCIR-IR,respectively Arak,Rasht,Urmia,Shahroud,Yazd,Kashan,Tabriz,and *** were classified into 3 groups based on their need for care resources,respectively:(1)non-spinal cord injury(SCI)patients without surgery(group 1),(2)non-SCI patients with surgery(group 2),and(3)SCI patients(group 3).The assessment tool was a self-designed questionnaire to evaluate the care quality in 3 phases:pre-hospital,in-hospital,and *** data from the first 2 phases were collected through the *** post-hospital data were collected by conducting follow-up *** follow-ups were conducted for groups 1 and 2(non-SCI patients),while group 3(SCI patients)had a face-to-face *** study took place during the COVID-19 *** on age and time interval from injury to follow-up were expressed as mean±standard deviation(SD)and response rate and follow-up loss as a ***:Altogether 1538 telephone follow-up records related to 1292 patients were registered in the *** the total calls,918(71.05%)were related to successful follow-ups,but 38 cases died and thus were excluded from data *** the end,post-hospital data from 880 patients alive were *** success rate of follow-ups by telephone for groups 1 and 2 was 73.38%and 67.05%respectively,compared to 66.67%by face-to-face visits for group 3,which was very hard during the COVID-19 *** data completion rate after discharge ranged from 48%-100%,22%-100%and 29%-100%for groups ***:To improve patient accessibility,NSCIR-IR should take me

关键词： Follow-up studies Spinal injuries Spinal cord injuries COVID-19 NSCIR-IR

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Hybrid Flow Shop with Setup Times Scheduling Problem

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Computer Systems Science & Engineering 2023年第1期44卷 563-577页

作者： Mahdi Jemmali lotfi Hidri Department of Computer Science and Information College of Science at ZulfiMajmaah UniversityMajmaah11952Saudi Arabia Mars Laboratory University of SousseSousseTunisia Department of Computer Science Higher Institute of Computer Science and Mathematics of MonastirMonastir UniversityMonastir5000Tunisia Industrial Engineering Department College of EngineeringKing Saud UniversityRiyadh11421Saudi Arabia

The two-stage hybridflow shop problem under setup times is addressed in this *** problem is *** the other hand,the studied problem is modeling different real-life applications especially in manufacturing and high *** this kind of problem requires the development of adapted *** this context,a metaheuristic using the genetic algorithm and three heuristics are proposed in this *** approximate solutions are using the optimal solution of the parallel machines under release and delivery ***,these solutions are iterative procedures focusing each time on a particular stage where a parallel machines problem is called to be *** general solution is then a concatenation of all the solutions in each *** addition,three lower bounds based on the relaxation method are *** lower bounds present a means to evaluate the efficiency of the developed algorithms throughout the measurement of the relative *** experimental result is discussed to evaluate the performance of the developed *** total,8960 instances are implemented and tested to show the results given by the proposed lower bounds and *** indicators are given to compare between *** results illustrated in this paper show the performance of the developed algorithms in terms of gap and running time.

关键词： Hybridﬂow shop genetic algorithm setup times heuristics lower bound

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Safety analysis of Sormeh underground mine to improve sublevel stoping stability

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Deep Underground Science and Engineering 2023年第2期2卷 173-187页

作者： Mostafa Hosseini Amin Azhari Rahman lotfi Alireza Baghbanan Department of Mining Engineering Isfahan University of TechnologyIsfahanIran

In underground mines,sublevel stoping is used among a variety of different methods for mining an orebody,which creates large underground *** this case,the stability of these openings is affected by a number of factors,including the geometrical characteristics of the rock and mining-induced *** this study,a sensitivity analysis was conducted with the numerical,squat pillar,and Mathews stability methods using the Taguchi technique to properly understand the influence of geometric parameters and stress on stope stability according to Sormeh underground mine *** results show a full factorial analysis is more reliable since stope stability is a complex ***,the numerical results indicate that overburden stress has the most impact on stope stability,followed by stope ***,the results obtained with Mathews and squat pillar methods show that stope height has the greatest impact,followed by overburden stress and *** appears that these methods overestimate the impact of stope ***,it is highly recommended that Mathews and squat pillar methods should not be used in high stope that is divided with several sill ***,Mathews method cannot accurately predict how the sill pillar impacts the stope *** addition,numerical analysis shows that all geometric parameters affect the roof safety factor,whereas the sill pillar has no significant influence on the safety factor of the hanging wall,which is primarily determined by the stope height–span ratio.

关键词： numerical method rib pillar stope stability sublevel stoping underground mining

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Influences of nanoparticles and chain length on thermodynamic and electrical behavior of fluorine liquid crystals

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Chinese Physics B 2022年第10期31卷 410-416页

作者： Ines Ben Amor lotfi Saadaoui Abdulaziz N.Alharbi Talal M.Althagafi Taoufik Soltani Université Tunis El Manar Laboratoire de Physique de la Matiére Molle et de la Modélisation Electromagnétique2092 Tunis Physics Department College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia

Hydrogen-bonded polar nematic liquid crystal series with the general formula n OBAF(n = 7-12) is studied. The mesomorphic characterization is demonstrated through differential scanning calorimetry(DSC) and polarized optical microscopy(POM). The complexes with short alkyl chains(n = 7, 8) present a wide nematic range and monotropic smectic F mesophase, whereas the longer alkyl chain(n = 10-12) analogues show high melting and low clearing mesomorphic liquid crystals. The thermal range of the mesophase and the birefringence increase with chain length decreasing. Furthermore, the effect of the nanoparticles(LiNbO_(3)) on the thermal and the electrical behavior of 8OBAF are investigated. The presence of LiNbO_(3) nanoparticles increases the conductivity and reduces the resistivity of the complex.

关键词： fluorine liquid crystal polar nematic ferroelectric nanoparticles thermal stability dielectric behavior

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Elevated temperature oxidation behavior of HVOF sprayed TiB_2 cermet coating

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Transactions of Nonferrous Metals Society of China 2010年第2期20卷 243-247页

作者： Behnam lotfi Department of Materials Engineering Faculty of EngineeringShahid Chamran UniversityAhvazIran

Oxidation behaviors of Ni(Cr)-TiB2 coating deposited by HVOF technique were studied at 800,900 and 1 000℃in air. The microstructures of as-sprayed and oxidized coatings were characterized by X-ray diffractometry(XRD)and scanning electron microscopy(SEM).After oxidation at 800℃,a thin and adherent oxide layer was formed on the surface of the *** increasing exposure temperature,the thickness of the oxide layer increased;and at 1 000℃the oxide layer separated from the *** of the kinetics of oxidation by using the thermogravimetric analysis(TGA)technique shows a parabolic oxidation rate.

关键词：金属陶瓷涂层高温氧化行为 TiB2涂层喷涂技术超音速火焰氧化层厚度扫描电子显微镜

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Cable-Driven Parallel Robot Workspace Identification and Optimal Design Based on the Upper Limb Functional Rehabilitation

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Journal of Bionic Engineering 2022年第2期19卷 390-402页

作者： Ferdaws Ennaiem Abdelbadia Chaker Juan Sandoval Sami Bennour Abdelfattah Mlika lotfi Romdhane Said Zeghloul Med Amine Laribi Department of GMSC Pprime Institute CNRSENSMAUniversity of PoitiersUPR 3346PoitiersFrance Mechanical Laboratory of Sousse(LMS) National Engineering School of SousseUniversity of Sousse4000 SousseTunisia American University of Sharjah PO Box 26666SharjahUnited Arab Emirates

An assessment of the human motion repeatability for three selected Activities of Daily Living(ADL)is performed in this *** exercises were prescribed by an occupational therapist for the upper limb *** movement patterns of five participants,recorded using a Qualisys motion capture system,are compared based on the Analysis of Variance(ANOVA)*** survey is motivated by the need to find the appropriate task workspace of a 6-degrees of freedom cable-driven parallel robot for upper limb rehabilitation,which is able to reproduce the three selected *** comparison is performed to justify,whether or not,there is enough similarity between the participants’gestures,and so a single reference trajectory can be adopted as the robot-prescribed *** the results of the comparative study,an optimization process of the sought robot design is carried out,where the structure size and the cable tensions simultaneously minimized.

关键词： Human motion repeatability Activities of Daily Living(ADL) Analysis of Variance(ANOVA) Task workspace Cable-driven parallel robot Upper limb rehabilitation Optimization

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Design issues for human-machine platform interface in cable-based parallel manipulators for physiotherapy applications

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第4期11卷 231-239页

作者： Marco CECCARELLI lotfi ROMDHANE Laboratory of Robotics and Mechatronics DIMSATUniversity of Cassino-CassinoItaly Département de Mécanique Avancée Ecole Nationale d'Ingénieurs de SousseTunisia

We outline problems and potential solutions for feasible human-machine interfaces using cable-based parallel manipulators for physiotherapy *** an engineering perspective,we discuss the design constraints related to acceptance by patients and physiotherapist *** date,most designs have focused on mobile platforms that are designed to be operated as an end-effector connected to human limbs for direct patient *** specific examples are illustrated from the authors' experience with prototypes available at Laboratory of Robotics and Mechatronics (LARM),Italy.

关键词： Robot design Robot applications Cable-based parallel manipulators Human-machine mechanical interfaces

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Structural,morphological and photoluminescence characterizations of Sm^(3+) doped Y_(2)O_(3) nano-sized phosphors synthesized by ultrasound assisted sol-gel method

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Journal of Rare Earths 2023年第1期41卷 51-59页

作者： Lyes Lamiri Badis Kahouadji Mourad Berd Abdelmoumen Abdellatif lotfi Benchallal Lakhdar Guerbous Salim Ouhenia Abdelhafid Souici Leila Amiour Abdelhalim Zoukel Madani Samah Department of TCSN University of BejaiaBejaia06000Algeria Department of Technology University of BejaiaBejaia06000Algeria Department of Technology Laboratory of LECVEUniversity of BejaiaBejaiaO6000Algeria Department of Physics of Materials University of Science and Technology Houari BoumedieneAlgiersAlgeria Laser Department/Nuclear Research Center of Algiers(CRNA) 02Boulevard Frantz FanonB.P.399Algiers16000Algeria Laboratory of Physical-chemistry University of BejaiaBejaia06000Algeria Phase Transformation Laboratory Universite Freres Mentouri Constantine 1Algeria Laboratory Physico-Chemistry of Materials Laghouat UniversityTechnical Platform of Physico-Chemical Analysis(PTAPC-Laghouat-CRAPC)LaghouatAlgeria

Nanosized 1 at% Sm^(3+)doped Y_(2)O_(3)powders were prepared by an ultrasound assisted sol-gel method.Y_(2)O_(3):Sm^(3+)powders crystallize in Y_(2)O_(3)pure cubic phase and XRD analysis shows that the as-used agitation protocol affects strongly the crystallite’s shape and mean *** recorded emission spectra under λ_(em)=600 nm exhibit two absorption bands;the first one is assigned to O^(2-)→Sm^(3+)charge transfer state(CTS) with a maximum absorption at 223 nm,and the second is due to intraconfigurational transition 4f^(5)-4f^(5) of Sm^(3+) with a maximum absorption at 407 *** 223 and 407 nm transitions are attributed to characteristics intra-configurational transitions of Sm^(3+).All emission spectra are dominated by reddish/orange luminescence located at 606 nm and assigned to ^(4)G_(5/2)→^(6)H_(7/2) *** is found that the photoluminescence intensity of samples obtained under excitation at 407 nm is 60 times smaller than that obtained under 223 nm *** time measurements of the ^(4)G_(5/2)→^(6)H_(7/2) luminescence transition indicate that decay time of nano-sized powder is significantly shorter than bulk material one.

关键词： Y_(2)O_(3):Sm^(3+)nano-sized powder Sol-gel method Ultrasound Charge transfer Photoluminescence Rare earths

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