ENP Engineering Science Journal最新文献

Methylene Blue Adsorption Kinetics Investigation by Coconut Shell Activated Carbon Adsorbent Using Fractional Power, Avrami and Bangham Models 使用分数功率、阿夫拉米和班哈姆模型研究椰壳活性炭吸附剂对亚甲蓝的吸附动力学

ENP Engineering Science Journal Pub Date : 2024-07-13 DOI: 10.53907/enpesj.v4i1.259

Abdulghaffaar Assayyidi Yusuf, A. Abubakar, Muhammad Abdulrazak, Kamran Khan, G. Rajasekar

{"title":"Methylene Blue Adsorption Kinetics Investigation by Coconut Shell Activated Carbon Adsorbent Using Fractional Power, Avrami and Bangham Models","authors":"Abdulghaffaar Assayyidi Yusuf, A. Abubakar, Muhammad Abdulrazak, Kamran Khan, G. Rajasekar","doi":"10.53907/enpesj.v4i1.259","DOIUrl":"https://doi.org/10.53907/enpesj.v4i1.259","url":null,"abstract":"Methylene blue is not easily biodegradable, and its persistence in water can contribute to long-term contamination if not properly treated. Numerous adsorption kinetic study successes were achieved utilizing activated carbons of coconut shell, especially the Pseudo-First and Pseudo-Second order models with little/no regards to the unique behavior described by the Avrami, Bangham and the Fractional Power kinetic models. The parameters in those models are determined to describe the sorption mechanism. Avrami model fitting results suggests a complex adsorption process, which does not follow the first-order kinetic. Obtained results show that the Fractional Power model best described the Coconut Shell-Activated Carbon Methylene blue bio-sorption process at constant adsorption capacity of 15937.8 mg/g. Findings show that Bangham kinetic model does not fit the experimental data for Methylene blue sorption from aqueous solution. Methylene blue exposure issues like gastrointestinal discomfort, skin and eye irritation, and imbalances in the populations of various species in aquatic ecosystems due to impacts on their growth, reproduction and survival, may be solved using a very effective adsorbent, such as the Coconut Shell -Activated Carbon used here.\u0000 ","PeriodicalId":200690,"journal":{"name":"ENP Engineering Science Journal","volume":"67 32","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141651435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Light yield measurement of the Ce3+ activated LuAG nano-powder garnet scintillating detector Ce3+ 激活型 LuAG 纳米粉体石榴石闪烁探测器的光产率测量

ENP Engineering Science Journal Pub Date : 2024-07-13 DOI: 10.53907/enpesj.v4i1.222

Hamza Mekki, Lakhdar Guerbous, H. Bousbia-salah, Billel Zahra, A. Boukerika

引用次数: 0

Kinematic Modelling of Humanoid Robot Based on Vectorial Approach 基于矢量法的仿人机器人运动学建模

ENP Engineering Science Journal Pub Date : 2024-07-13 DOI: 10.53907/enpesj.v4i1.271

Nacer Hadidi, Chawki Mahfoudi, Mohamed Bouaziz, Zaharuddin Mohamed, Ahcene Bouzida

引用次数: 0

Quantifying Electric Charge on Cap-Pin Glass Insulator: Investigating the Impact of Pollution through Simulation and Experimental Approaches 量化帽针玻璃绝缘体上的电荷：通过模拟和实验方法研究污染的影响

ENP Engineering Science Journal Pub Date : 2024-07-13 DOI: 10.53907/enpesj.v4i1.255

Rabie Salhi, Abdelouahab Mekhaldi, M. Teguar, O. Kherif

{"title":"Quantifying Electric Charge on Cap-Pin Glass Insulator: Investigating the Impact of Pollution through Simulation and Experimental Approaches","authors":"Rabie Salhi, Abdelouahab Mekhaldi, M. Teguar, O. Kherif","doi":"10.53907/enpesj.v4i1.255","DOIUrl":"https://doi.org/10.53907/enpesj.v4i1.255","url":null,"abstract":"The objective of this paper is to investigate the behavior of electric charges on cap-pin glass insulator under 50 Hz AC voltage. The study is conducted using COMSOL Multiphysics to understand the charge location, polarity, and parameters affecting their behavior. A 2D axisymmetric insulator design is used to visualize the overall charges on the insulating system (space charge) and along the insulating surface (surface charge density) under uniform and non-uniform pollution conditions. The research shows that the total charge accumulates over the surface area of the glass material. To quantify the amount of this charge, a simulation method based on using the surface integral of the electric displacement field over this area is introduced, which is supported by experimental tests. Comparing both simulation and experimental results provides insights into the simulation reliability and the parameters affinity used to those of the real model. Moreover, the simulation helps to identify the critical area where a high amount of charges is accumulated. The findings of this study are presented and examined.\u0000 \u0000 ","PeriodicalId":200690,"journal":{"name":"ENP Engineering Science Journal","volume":"5 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141651620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Renewables in the Energy Mix of Algeria, a pledge for food security 阿尔及利亚能源组合中的可再生能源，对粮食安全的承诺

ENP Engineering Science Journal Pub Date : 2024-07-13 DOI: 10.53907/enpesj.v4i1.195

S. Haddoum, Hocine Bennour, T. Ahmed Zaid

{"title":"Renewables in the Energy Mix of Algeria, a pledge for food security","authors":"S. Haddoum, Hocine Bennour, T. Ahmed Zaid","doi":"10.53907/enpesj.v4i1.195","DOIUrl":"https://doi.org/10.53907/enpesj.v4i1.195","url":null,"abstract":"This paper examines the renewables potential in the energy mix of Algeria with a special insight to bioenergy and food security. In recent years, and at global scale, bioenergy was seen as the leading renewable energy source. That contribution was particularly consistent with long term climate targets. The 2015 updated version of the Algeria Renewable Energy Development Program foresees the introduction of biomass sector with a contribution of 1000 MW by 2030. This represents barely 5% of the country’s renewable energy targets which amount to 22 000 MW, 93.5% of which are planned for solar and wind. In 2020, this objective has been reduced to 15,000 MW and the deadline extended to 2035. To date, despite the growing perception of a real desire to encourage clean energy projects, the renewable energy installed capacity is less than 500 MW without any contribution from the biomass sector. However, whatever the goals or the achievements, the need for renewable deployment is crucial for strategic purposes such as energy, water desalination and food security. The relationship between food security, sustainable development, and renewable energy is well demonstrated. Ensuring food security is closely linked with energy, hence with renewable energy sources in the middle and long term, including biomass valorization. This paper presents a comprehensive outlook of the bioenergy sector, highlighting the barriers which stand in the path of biomass recovery and use. Today, it appears clearly that a significant increase in renewable energy can only be achieved by higher solar power production.\u0000 ","PeriodicalId":200690,"journal":{"name":"ENP Engineering Science Journal","volume":"69 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141651495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Human Visual System applied to Facial Recognition 应用于面部识别的人类视觉系统

ENP Engineering Science Journal Pub Date : 2024-07-13 DOI: 10.53907/enpesj.v4i1.247

Fatima Zohra ALLAM née CHERGUI, Latifa Hamami-Mitiche, H. Bousbia-salah

{"title":"Human Visual System applied to Facial Recognition","authors":"Fatima Zohra ALLAM née CHERGUI, Latifa Hamami-Mitiche, H. Bousbia-salah","doi":"10.53907/enpesj.v4i1.247","DOIUrl":"https://doi.org/10.53907/enpesj.v4i1.247","url":null,"abstract":"Research in the field of biometrics is constantly expanding. Numerous studies have been carried out to develop different techniques with the aim of ensuring reliable and efficient recognition systems. Of our five senses, vision takes up the most of the neurons in our brain. This makes the visual approach challenging. This paper proposes to develop a new facial recognition technique based on the concept of Human Visual System in order to simulate or imitate human perception. Our approach exploits the behavior of the Human Visual System in biometric systems to improve individual recognition. It focuses on Perceptual Channel Decomposition in order to generate images, confined around a certain frequency range, perfectly uncorrelated. For the extraction of characteristic vectors, our technique uses the Principal Component Analysis. The principle of the visual approach consists of exploiting one or more characteristics of the peripheral parts of the Human Visual System. These characteristics can integrate the sensitivity of the Human Visual System to spatial frequencies, its sensitivity to local contrast. The Principal Component Analysis uses a set of seventeen channels, each adjusted to a band of given radial frequencies and orientation. The seventeen output images contain the same spatial information but are perfectly uncorrelated from a spectral point of view. In the implementation phase, we limited ourselves to explore this technique by using only four frequency rings. The results obtained are conclusive and satisfactory.","PeriodicalId":200690,"journal":{"name":"ENP Engineering Science Journal","volume":"64 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141651880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anaerobic digestion of municipal solid waste produced by the city of Algiers using life cycle assessment 利用生命周期评估对阿尔及尔市产生的城市固体废物进行厌氧消化

ENP Engineering Science Journal Pub Date : 2024-07-13 DOI: 10.53907/enpesj.v4i1.256

Sadia Zibouche, Rabah Bouarab, Mohammed Amouri

引用次数: 0

Friction Stir Welding of AZ31 Mg Alloy: Microstructure, Micro hardness and Electrochemical Behavior AZ31 镁合金的摩擦搅拌焊接：显微结构、显微硬度和电化学行为

ENP Engineering Science Journal Pub Date : 2024-07-13 DOI: 10.53907/enpesj.v4i1.198

Khawla Amara, M. Bouabdallah, R. Badji, M. Aissani

引用次数: 0

Overview of Open-Loop Frequency Estimation Techniques for Grid Synchronization of Single-Phase Power Converters 用于单相电源转换器电网同步的开环频率估计技术概述

ENP Engineering Science Journal Pub Date : 2024-07-13 DOI: 10.53907/enpesj.v4i1.179

H. Rahmani, S. Boulouma, Mourad Haddadi

引用次数: 0

Catalytic pyrolysis of high-density polyethylene for the production of carbon nanomaterials: effect of pyrolysis temperature 催化热解高密度聚乙烯制备碳纳米材料:热解温度的影响

ENP Engineering Science Journal Pub Date : 2023-07-20 DOI: 10.53907/enpesj.v3i1.177

Salma Belbessai, E. Benyoussef, N. Abatzoglou

{"title":"Catalytic pyrolysis of high-density polyethylene for the production of carbon nanomaterials: effect of pyrolysis temperature","authors":"Salma Belbessai, E. Benyoussef, N. Abatzoglou","doi":"10.53907/enpesj.v3i1.177","DOIUrl":"https://doi.org/10.53907/enpesj.v3i1.177","url":null,"abstract":"A two-stage reaction process is followed to convert high-density polyethylene (HDPE) into carbon nanofilaments (CNFs) and hydrogen-rich gas. The experiments are performed in a continuous mode in a two-stage quartz reactor: thermal pyrolysis of HDPE followed by the catalytic decomposition of the pyrolysis gases over a nickel catalyst prepared from mining residues. To examine the effect of the pyrolysis temperature on the yield and quality of the final products, two steps were followed. First, non-catalytic pyrolysis experiments were run at different temperatures (600, 650, and 700 °C), and the products were examined. Second, pyrolysis–catalysis experiments were performed at the same pyrolysis temperatures and a fixed catalytic temperature (600 °C) to examine the CNF and hydrogen yields. The results showed that the production of carbon nanomaterials (CNMs) and H2 is optimal at 650 °C, with yields of 70.8 and 38.0 wt%, respectively. Scanning electron microscopy (SEM) revealed the presence of carbon filaments with different diameters and lengths at the three different temperatures. Moreover, thermogravimetric analysis (TGA) confirmed that the produced carbon is filamentous, with the presence of amorphous carbon at 700 °C.","PeriodicalId":200690,"journal":{"name":"ENP Engineering Science Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114491689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1