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| 1 | Microbiological parameters and maturity degree during composting of Posidonia oceanica residues mixed with vegetable wastes in semi-arid pedo-climatic condition显示文摘The aim of this study was to characterize the biological stability and maturity degree of compost during a controlled pile-composting trial of mixed vegetable residues (VR) collected from markets of Tunis City with residues of Posidonia oceanica (PoR), collected from Tunis beaches. The accumulation in beaches (as well as their removal) constitutes a serious environmental problem in all Mediterranean countries particularly in Tunisia. Aerobic-thermophilic composting is the most reasonable way to profit highly-valuable content of organic matter in these wastes for agricultural purposes. The physical, chemical, and biological parameters were monitored during composting over 150 d. The most appropriate parameters were selected to establish the maturity degree. The main result of this research was the deduction of the following maturity criterion: (a) C/N ratio < 15; (b) NH4+-N < 400 mg/kg; (c) CO2-C < 2000 mg CO2-C/kg; (d) dehydrogenase activity < 1 mg TPF/g dry matter; (e) germination index (GI) > 80%. These five parameters, considered jointly are indicative of a high maturity degree and thus of a high-quality organic amendment which employed in a rational way, may improve soil fertility and soil quality. The mature compost was relatively rich in N (13.0 g/kg), P (4.74 g/kg) and MgO (15.80 g/kg). Thus composting definitively constitutes the most optimal option to exploit these wastes. | SAIDI Neyla KOUKI Soulwene M'HIRI Fadhel JEDIDI Naceur MAHROUK Meriam HASSEN Abdennaceur OUZARI Hadda | 2009 | Journal of Environmental Sciences2009，21，10： | 32 |
| 2 | CeO2 nanoscale particles:Synthesis,characterization and photocatalytic activity under UVA light irradiation显示文摘CeO_2 nanoparticles(NPs) were synthesized in alkaline medium via the homogeneous precipitation method and were subsequently calcined at 80 ℃/24 h(assigned as CeO_2-80) and 500 ℃/2 h(assigned as CeO_2-500). The as-prepared materials and the commercial ceria(assigned as CeO_2-com) were characterized using TGA-MS, XRD, SEM-EDX, UV-vis DRS and IEP techniques. The photocatalytic performances of all obtained photocatalysts were assessed by the degradation of Congo red azo-dye(CR) under UVAlight irradiation at various environmental key factors(e.g., reaction time and calcination temperature).Results reveal that CeO_2 compounds crystalize with cubic phase, CeO_2-500 exhibits smaller crystallite size(9 nm vs 117 nm) than that of bare CeO_2-com. SEM analysis shows that the materials are sphericallike in shape NPs with strong assembly of CeO_2 NPs observed in the CeO_2-500 NPs. EDX analysis confirms the stoichiometry of CeO_2 NPs. UV-vis DRS measurement reveals that, CeO_2-500 NPs exhibits a red-shift of absorption band and a more narrow bandgap(2.6 eV vs 3.20 eV) than that of bare CeO_2-com. On the contrary, Urbach energy of Eu is found to be increased from 0.12 eV(CeO_2-com) to 0.17 eV(CeO_2-500),highlighting an increase of crystalline size and internal microstrain in the CeO_2-500 NPs sample. Zeta potential(IEP) of CeO_2-500 NPs is found to be 7.2. UVA-light-responsive photocatalytic activity is observed with CeO_2-500 NPs at a rate constant of 10×10^(-3) min^(-1), which is four times higher than that of CeO_2-com(K_(app)=2.4×10^(-3) min^(-1)) for the degradation of CR. Pseudo-first-order kinetic model gives the best fit. On the basis of the energy band diagram positions, the enhanced photocatalytic performance of CeO_2-500 nano-catalyst can be ascribed to O_2^-, 'OH and R'^+ as the primary oxidative species involved in the degradation of RC under UVA-light irradiation. | Laouedj Nadjia Elaziouti Abdelkader Benhadria Naceur Bekka Ahmed | 2018 | Journal of Rare Earths2018，36，6： | 8 |
| 3 | Development of cork oak (Quercus suber L.) seedlings in response to tree shelters and mulching in northwestern Tunisia显示文摘The need for reforestation in cork oak (Quercus suber L.) areas is challenged by difficulties. Principal among these is herbivory of young plants, vegetative competition, and slow growth rates of cork oak seedlings. We evaluated the early development of cork oak seedlings treated using tree shelters and mulching in northwestern Tunisia. We tested three tree shelter treatments (non-vented, vented, and control) to shield seedlings from animal damage and five mulch types to control competing vegetation (Italian Stone Pine, Lentisk, combination of Italian Stone Pine and Lentisk (organic mulches), gravel (inorganic mulch) and no mulch). At the end of the two-year experiment, sheltered seedlings were 89-99% taller than unshelteredseedlings and had higher numbers and lengths of shoot growth flushes. In contrast, both stem diameter growth and dry weight biomass (from samples extracted after two years) were significantly reduced inside tree shelters. Root-to-shoot ratio was not significantly different in sheltered vs. unsheltered seedlings, suggesting that tree shelters do not adversely affect this parameter. Mulching alone did not favour growth, but could be beneficial when combined with tree shelters. The combination of vented tree shelters and gravel mulch was the most effective treatment for promoting diameter, height and stem volume growth. | Taher Mechergui Marta Pardos Naceur Boussaidi Brahim Hasnaoui Douglass F. Jacobs | 2013 | Journal of Forestry Research2013，24，2： | 5 |
| 4 | Assessment of ship manoeuvrability by using a coupling between a nonlinear transient manoeuvring model and mathematical programming techniques显示文摘In this paper,a numerical method based on a coupling between a mathematical model of nonlinear transient ship manoeuvring motion in the horizontal plane and Mathematical Programming(MP)techniques is proposed.The aim of the proposed procedure is an efficient estimation of optimal ship hydrodynamic parameters in a dynamic model at the early design stage.The proposed procedure has been validated through turning circle and zigzag manoeuvres based on experimental data of sea trials of the 190 000-dwt oil tanker.Comparisons between experimental and computed data show a good agreement of overall tendency in manoeuvring trajectories. | TRAN KHANH Toan OUAHSINE Abdellatif NACEUR Hakim EL WASSIFI Karima | 2013 | Journal of Hydrodynamics2013，25，5： | 3 |
| 5 | New Biobased Polyurethane Materials from Modified Vegetable Oil显示文摘Bio-based polyurethanes(PUs)have been occurred a large attention nowadays.It was found to be an alternative to the petrochemical based materials to the fact of their weak environmental influence,availability,good price and biodegradability.In addition,the nature shows several bio-derived compounds as raw materials for the synthesis of polyols,including the vegetable oils,polyphenol,terpene,and other bio-renewable sources.With the aim to develop a new family of biobased polyurethanes(PUs)via vegetable oils,the elaboration of new Jojoba-based PUs was performed by catalyst-free polycondensation reaction of a synthesized Jojoba diol with various diisocyanates such us toluene diisocyanate(TDI)and isophorone diisocyanate(IPDI).All the compounds were characterized by FTIR and NMR spectroscopies,and their properties were determined by gel permeation chromatography,differential scanning calorimetry and thermogravimetric analysis.The obtained results show renewable vegetable oils-based PUs materials can be preparing using a new environmentally ways and giving various good properties performances. | Chakib Mokhtari Fouad Malek Sami Halila Mohamed Naceur Belgacem Ramzi Khiari | 2021 | Journal of Renewable Materials2021，9，7： | 2 |
| 6 | Stock markets, banks, and economic growth: Empirical evidence from the MENA region显示文摘 | Samy Ben Naceur Samir Ghazouani | 2006 | Research in International Business and Finance2006，，2： | 2 |
| 7 | Effect of sintering temperature on microstructure and electrical properties of Sr_(1-x)(Na_(0.5)Bi_(0.5))_(x)Bi_(2)Nb_(2)O_(9) solid solutions显示文摘In this study,we investigated the effect of sintering temperature on densification,grain size,conductivity and dielectric properties of Sr_(1-x)(Na_(0.5)Bi_(0.5))_(x)Bi_(2)Nb_(2)O_(9) ceramics,prepared by hydrothermal method.Pellets were sintered at different temperatures.Density increased with sintering temperature,reaching up to 96%at 800℃.A grain growth was observed with increasing sintering temperature.Impedance spectroscopy analyses of the sintered samples at various temperatures were performed.Increase in dielectric constant and in Curie temperature with sintering was discussed.Electrical conductivity and activation energy were calculated and attributed to the microstructural factors. | Hana NACEUR Adel MEGRICHE Mohamed EL MAAOUI | 2014 | Journal of Advanced Ceramics2014，3，1： | 2 |
| 8 | Effects of outdoor shared spaces on social interaction in a housing estate in Algeria显示文摘 | Naceur Farida | 2013 | Frontiers of Architectural Research2013，2，4： | 2 |
| 9 | Optimization of drawbead restraining forces and drawbead design in sheet metal forming process显示文摘 | NACEUR H GUO Y Q BATOZ J L | 2001 | International Journal of Mechanical Science2001，43，10： | 1 |
| 10 | Stock markets,banks,and economic growth:Empirical evidence from the MENA region显示文摘 | Naceur S B Ghazouani S | 2007 | Research in International Business and Finance2007，21，2： | 1 |
| 11 | Recent developments on the analysis and optimum design of sheet metal forming parts using a simplified inverse approach显示文摘 | Guo Y Q Batoz J L Naceur H | 2000 | Computers and Structures2000，78，13： | 1 |
| 12 | Blank optimization inheet metal forming using an evolutionary algo rithm显示文摘 | NACEUR H GUO Y BATOZ J L | 2004 | Journal of Materials Processing Technology2004，13，151： | 1 |
| 13 | An efficient DKT rotation free shell element for springback simulation in sheet metal forming显示文摘 | Guo Y Q Gati W Naceur H | 2002 | Computers and Structures2002，80，： | 1 |
| 14 | Isolation and characterization of cellulose nanocrystals from industrial by-products of Agave tequilana and barley显示文摘 | Etzael Espino Mélissa Cakir Sandra Domenek Alma Delia Román-Gutiérrez Naceur Belgacem Julien Bras | 2014 | Industrial Crops & Products2014，，： | 1 |
| 15 | Treatment of metal finishing effluents by the electroflotation technique显示文摘 | KHELIFA A MOULAY S NACEUR A W | 2005 | Desalination2005，181，1： | 1 |
| 16 | Moving least squares response surface approximation: formulation and metal forming applications 显示文摘 | BREITKOPF P NACEUR H RASSINEUX A | 2005 | Computers and Structures2005，83，： | 1 |
| 17 | Selection of dispersants for the dispersion of carbon black in organic medium显示文摘 | Faouzi Nsib Naceur Ayed Yves Chevalier | 2006 | Progress in Organic Coatings2006，55，： | 1 |
| 18 | Optimiza- tion of drawbead restraining forces and drawbead design in sheet metal forming proeess显示文摘 | NACEUR H GUO Y Q BATOZ J L | 2001 | International Journal of Mechanical Science2001，43，10： | 1 |
| 19 | Acrylated vegetable oils as photocrosslinkable materials显示文摘 | Hdne Pelletier Naceur Belgacem Alessandro Gandini | 2006 | J Appl Polym Sci2006，99，6： | 1 |
| 20 | Microbial characterization during composting of municipal solid waste 显示文摘 | Abdennaceur Hassen Kaouala Belguith Naceur Jedidi | 2001 | Bioresource Technology2001，80，3： | 1 |
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