تجسيد المشروع الابتكاري المدعم والمرافق من طرف المركز للشركة الناشئة للزوجين بغدادي

تجسيد المشروع الابتكاري المدعم والمرافق من طرف المركز للشركة الناشئة للزوجين بغدادي

À LA UNE, News, Revue de Press

#CRAPC#START_UP_LES_BAGHDADI_S.

#الحاوية_الذكية
#تجسيد_منتج_البحث_العلمي_الحاوية_الذاكية

#التلفزيون_الجزائري
|

#ENTV_Novembre2020

#حصة_بيئتنا

#للصحفية_علوش_صبرينة_إيكولوجيا

في اطار تجسيد مشروع النظام الذكي لتسيير النفايات
#الحاوية_الذكية
المبتكر من طرف الشركة الناشئة في مجال البيئة للباحثين والمخترعين زهرة بغدادي و توفيق بغدادي
#Startup_Les_BAGHDADI_S
و التي يرافقها مركز البحث العلمي والتقني في التحاليل الفيزيائية والكيميائية
#CRAPC
ويدعمها و أيضا الحاصلين على المرتبة الاولى
في مسابقة تحدي مبتكر كرابسي 2018 التي نظمها مركز البحث العلمي والتقني للتحاليل الفزياىية والكمياىية ببوسماعيل، بمشروع الحاوية الذكية هي نظام ذكي لتسيير النفايات⁦
بالفرز لجمع النفايات المنزلية وهو حل مبتكر وذكي في مجال تسيير النفايات للمدن،تم احتضانه والموافقة عليه من أجل تجسيده على أرض الواقع بأحياء العاصمة بكل من بلديتي
#الرغاية و #الرويبة

New Paper (URADTE CRAPC):Artificial neural network modeling of cefixime photodegradation by synthesized CoBi2O4 nanoparticles

New Paper (URADTE CRAPC):Artificial neural network modeling of cefixime photodegradation by synthesized CoBi2O4 nanoparticles

À LA UNE, CRAPC News, Publication Scientifique, Publication Scientifique Division Santé, URADTE
  • Oussama Baaloudj, Laboratory of Reaction Engineering, Faculty of Mechanical Engineering and Process Engineering USTHB, BP 32, Algiers, Algeria
  • Noureddine Nasrallah, Laboratory of Reaction Engineering, Faculty of Mechanical Engineering and Process Engineering USTHB, BP 32, Algiers, Algeria
  • Mohamed Kebir, Laboratory of Reaction Engineering, Faculty of Mechanical Engineering and Process Engineering USTHB, BP 32, Algiers, Algeria
  • Research Unit on Analysis and Technological Development in Environment (URADTE-CRAPC), BP 384, Bou-Ismail Tipaza, Algeria
  • Bouzid Guedioura, Reactor division, Nuclear Research Center, Draria, Algeria
  • Abdeltif Amrane, Univ Rennes – ENSCR / UMR CNRS 6226 “Chemical Sciences of Rennes” ENSCR, Campus de Beaulieu, 11, allée de Beaulieu – CS 50837 – 35708 Rennes, 35708, Rennes, France
  • Phuong Nguyen-Tri, Institute of Research and Development, Duy Tan University, Da Nang, 550000, Vietnam
  • Université du Québec à Trois-Rivières (UQTR), Trois-Rivières, Québec, G9A 5H7, Canada
  • Sonil Nanda & Aymen Amin Assadi Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5A9, Canada

Received: 8 August 2020 /Accepted: 16 November 2020

© 2020 Springer Nature Switzerland AG. Part of Springer Nature

  • Environmental Science and Pollution Research

Abstract

CoBi2O4 (CBO) nanoparticles were synthesized by sol-gel method using polyvinylpyrrolidone (PVP) as a complexing reagent. For a single phase with the spinel structure, the formed gel was dried and calcined at four temperatures stages. Various methods were used to identify and characterize the obtained spinel, such as X-ray diffraction (XRD), scanning electron micrograph (SEM-EDX), transmission electron microscope (TEM), Fourier transform infrared (FT-IR), X-ray fluorescence (XRF), Raman, and UV-Vis spectroscopies. The photocatalytic activity of CBO was examined for the degradation of a pharmaceutical product cefixime (CFX). Furthermore, for the prediction of the CFX degradation rate, an artificial neural network model was used. The network was trained using the experimental data obtained at different pH with different CBO doses and initial CFX concentrations. To optimize the network, various algorithms and transfer functions for the hidden layer were tested. By calculating the mean square error (MSE), 13 neurons were found to be the optimal number of neurons and produced the highest coefficient of correlation R2 of 99.6%. The relative significance of the input variables was calculated, and the most impacting input was proved to be the initial CFX concentration. The effects of some scavenging agents were also studied. The results confirmed the dominant role of hydroxyl radical OH in the degradation process. With the novel CoBi2O4/ZnO hetero-system, the photocatalytic performance has been enhanced, giving an 80% degradation yield of CFX (10 mg/L) at neutral pH in only 3 h.

© 2020 Springer Nature Switzerland AG. Part of Springer Nature

https://link.springer.com/article/10.1007/s11356-020-11716-w

تسجيل حصة بالأرضية التقنية بورقلة من طرف   المحطة الجهوية  للتلفزة   الوطنية بورقلة

تسجيل حصة بالأرضية التقنية بورقلة من طرف المحطة الجهوية للتلفزة الوطنية بورقلة

À LA UNE, Gallerie Photos, Revue de Press

في إطار الانفتاح على القطاع الاإقتصادي والإجتماعي و الاكاديمي قامت فرقة المحطة الجهوية للتلفزة الوطنية بورقلةيوم الاربعاء 25 نوفمبر 2020 بزيارة عمل لمقر الارضية التقنية للتحاليل الفيزيائية والكيميائية بورقلة والتابعة لمركز البحث العلمي والتقني في التحاليل الفيزيائية والكيميائية ببواسماعيل من أجل تسجيل حصة لعرضها بحصة صباحيات على القناة الثالثة يوم 07 ديمسمبر 2020 حسب البرنامج المسطر ،إذ تم استقبالها من طرف الدكتور بلخلفة حكيم رئيس مشروع الارضية التقنية و تم وتسجيل عدة مداخلات مع مستخدمي الارضية والتعرف على مختلف التشخيصات والتجهيزات التي تتوفر عليها الأرضية التقنية ومختلف تقنيات التحاليل الفيزيائية والكيميائية التي تتوفر عليها

New Paper CRAPC:Porous Silica Monolithic Polymers for Micromachined Gas Chromatography Columns: A Featured Phase for Fast and Efficient Separations of Light Compounds Mixtures

New Paper CRAPC:Porous Silica Monolithic Polymers for Micromachined Gas Chromatography Columns: A Featured Phase for Fast and Efficient Separations of Light Compounds Mixtures

À LA UNE, CRAPC News, Publication Scientifique, Publication Scientifique Division Santé

Published in: IEEE Sensors Journal ( Volume: 20, Issue: 22, Nov.15, 15 2020)

Porous Silica Monolithic Polymers for Micromachined Gas Chromatography Columns: A Featured Phase for Fast and Efficient Separations of Light Compounds Mixtures

Authors


Imadeddine Azzouz

ESIEE Engineering, Noisy-le-Grand, France

Research Centre in Analytical Chemistry and Physics (CRAPC), Algiers, Algeria

Djahida Lerari

Materials Chemistry Division, Research Centre in Analytical Chemistry and Physics (CRAPC), Algiers, Algeria

Khaldoun Bachari

Research Centre in Analytical Chemistry and Physics (CRAPC), Algiers, Algeria

Abstract:

Since the late 1970s, approaches have been proposed to replace conventional gas chromatography apparatus with silicon-based microfabricated separation systems. Performances are expected to be much improved with miniaturization owing to the reduction of diffusion distances and better thermal management. When it is easy to microfabricate miniaturized parts, the main challenge consists, however, to produce stable, efficient, and functionalized columns. The purpose of the paper is to transpose and adapt monolith synthesis in-situ micromachined gas chromatography columns. Silica-based monolithic microcolumns based on the sol–gel process were tested in the course of high-speed gas chromatographic separations of light hydrocarbons mixture (C1–C4). At the optimum separation conditions, a very good resolution (2.14) for very light compounds (C1–C2) was reached on a 50 cm microcolumn at room temperature with a back-pressure within the range used at gas chromatography facilities (without external modification of the device). The versatility of these microelectromechanical systems (MEMS) columns was demonstrated with a high-temperature C1 – C2 separation, and unsaturated cyclic alkanes. Light halogenated alkanes were also successfully separated. These columns should be used in various applications related to oil/gas and environment field analyses.

https://ieeexplore.ieee.org/abstract/document/9130702/authors