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Evaluation environmental strategies in a semi-arid region : Case of the 50 duplex dwellings of the El-Miniawy brothers in M’sila 半干旱地区环境战略评价:M 'sila El-Miniawy兄弟50栋复式住宅的案例
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.7
S. Kersenna, S. Chaouche, M. Bencherif
This study aims to evaluate the 50 duplex dwellings of the El Miniawy brothers in M'Sila, using methods of analysis of environmental strategies in order to verify their application by the architects in the construction of these dwellings. A duplex dwelling was selected to undertake an analysis using a mixed methodological approach, combining a qualitative and quantitative method, some of whose strategies were evaluated using the EnergyPlus software and validated by in situ measurements. The results showed that duplex housing has been subject to the application of the strategies in question. We therefore deduce that the construction is efficient and that it ensures the comfort of the user and reduces the negative environmental impact. This study could constitute an alternative for architects, building designers, planners and decision-makers in order to encourage them to adopt these neo-vernacular environmental strategies of El Miniawy in the development of similar projects in M'sila, and to launch other projects with a contemporary vernacular character.
本研究旨在评估El Miniawy兄弟在M'Sila的50套复式住宅,使用环境策略分析方法,以验证建筑师在这些住宅建设中的应用。选择一个复式住宅进行分析,采用混合方法,结合定性和定量方法,其中一些策略使用EnergyPlus软件进行评估,并通过现场测量进行验证。结果表明,复式住宅已受到所述策略的应用。因此,我们推断该结构是有效的,并且它确保了用户的舒适性并减少了对环境的负面影响。这项研究可以为建筑师、建筑设计师、规划者和决策者提供一种选择,以鼓励他们在M'sila开发类似项目时采用El Miniawy的这些新本土环境战略,并启动其他具有当代本土特色的项目。
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引用次数: 0
Experimental and quantum chemical studies on molecular structure, spectroscopic analysis, NLO analysis and HOMO-LUMO of substituted N-ferrocenylmethyl-N-phenylamides 取代的n -二茂铁甲基- n -苯基酰胺的分子结构、光谱分析、NLO分析和HOMO-LUMO的实验和量子化学研究
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.15
N. Zegheb, C. Boubekri, T. Lanez, A. Kerassaa
This work aims to determine structural, crystal properties and molecular spectroscopy of three N-ferrocenylmethyl-N-phenylamide using DFT method. The computed bond lengths, bond angles and dihedral angles of the titled molecules were calculated and compared with the experimental geometrical parameters, the amount of positive and negative charges using Mulliken charge and the molecular electrostatic potential map (MESP) were also investigated. The theoretical vibrational frequencies were compared with the corresponding experimental data. 1H and 13C NMR spectra were obtained using gauge including atomic orbital (GIAO) method, the calculated and experimental chemical shifts were compared. The dipole moment, linear polarizability and first order hyperpolarizability values were also computed. A study on the electronic properties, HOMO and LUMO energies, were performed by time-dependent DFT (TD-DFT) approach.
本工作旨在利用DFT方法测定三种n -二茂铁甲基- n -苯酰胺的结构、晶体性质和分子光谱。计算了分子的键长、键角和二面角,并与实验几何参数进行了比较,利用Mulliken电荷和分子静电势图(MESP)研究了正负电荷的数量。将理论振动频率与实验数据进行了比较。采用原子轨道测量法(GIAO)获得了样品的1H和13C核磁共振谱,并对计算的化学位移和实验的化学位移进行了比较。计算了偶极矩、线性极化率和一阶超极化率。利用时变DFT (TD-DFT)方法对其电子性质、HOMO和LUMO能量进行了研究。
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引用次数: 2
Integration of the historic urban structures, a syntactic approach case of the medina of Bou-Saada in Algeria 历史城市结构的整合,一种句法方法——以阿尔及利亚布萨达的麦地那为例
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.28
N. Belouadah, S. Mazouz
The traditional built environment of the medina of Bou-Saada in Algeria is undergoing harmful attacks, due to an accelerated urban dynamic. The latter having impacts on the life of society. In this study, we questioned ourselves on the preservation of this historic center, and its integration into the urban dynamics of the city, through a syntactic study of urban spaces. The results found highlighted the types of urban spaces that exist in the medina of Bou-Saada, each one undergoes an aspect of degradation, either by the reconversion of several traditional dwellings, total or partial renovation, or, a state of dilapidation. We have found that the characterization of the urban structure is essential to carry out any intervention at the level of the historic centers, in order to assign more precise values to the places, according to the appropriate sociocultural and economic requirements.
阿尔及利亚布萨达麦地那的传统建筑环境由于城市动态的加速而受到有害的攻击。后者对社会生活产生了影响。在这项研究中,我们通过对城市空间的句法研究,对这个历史中心的保护及其与城市动态的整合提出了质疑。研究结果突出了布萨达麦地那的城市空间类型,每一种空间都经历了退化,要么是几栋传统住宅的重新改造,要么是全部或部分翻新,要么是破败不堪。我们发现,城市结构的特征对于在历史中心层面进行任何干预至关重要,以便根据适当的社会文化和经济要求为这些地方分配更精确的价值。
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引用次数: 0
Improving air navigation at Chlef aerodrome by implementing a new Instrument Landing System(ILS) 采用新的仪表降落系统改善克利夫机场的空中导航
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.17
A. Boudani, S. Bergheul, S. Belkheir, W. Attatfa
This work presents the study of the improving air navigation at chlef aerodrome by Implementing a new Instrument Landing System (ILS). At present, the radio navigation systems at Chlef aerodrome can handle the air traffic load adequately(air traffic controllers are able to manage the airspace for which they are responsible). Nevertheless, in the very near future the traffic load will become so important that it will require the implementation of an ILS beacon. To this reason, we will study the current situation, which is based on a general presentation of Chlef aerodrome (the situation and position of the airspace, and the existing airport infrastructure), followed by the choice of equipment to be installed and the method of implanting the ILS system (composition, technical characteristics and arrangements), in accordance with standards and recommended practices. From these results we can find: Implementation of glide path (GP) on the runway26, implementation of the localizer on the runway 26, setting a new equipment DME. The previous systems contribute largely for improving the air navigation at the aerodrome of Chlef.
本文介绍了通过实施一种新的仪表着陆系统(ILS)来改善chlef机场的空中导航的研究。目前,Chlef机场的无线电导航系统能够充分处理空中交通负荷(空中交通管制员能够管理他们负责的空域)。然而,在不久的将来,交通负荷将变得如此重要,以至于需要实施ILS信标。为此,我们将研究目前的情况,这是基于Chlef机场的总体介绍(空域的情况和位置,以及现有的机场基础设施),然后是要安装的设备的选择和ILS系统的植入方法(组成、技术特征和安排),按照标准和推荐做法。从这些结果中我们可以发现:在跑道26上实现下滑道(GP),在跑道26中实现定位器,设置新的设备DME。以前的系统在很大程度上有助于改善Chlef机场的空中导航。
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引用次数: 0
Study and construction of the Setif Tramway. An urban project approach? 塞提夫有轨电车的研究与建设。城市项目方法?
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.18
S. Kachef, B. Labii, S. Bouzaher
The Setif Tramway project is a significant urban project, mobilizing, strategic and innovative, which has upset the urban dynamics of the city, by its insertion on its primary East-West axis, representing its backbone. This paper aims the apprehension of this project as a city project, through its development process, to understand its approach, and to identify a new posture which speaks of a management system, where the process of “Pluralization” responds to strategic orientations which aim at complementarity between the strategy of political actors and the needs of citizen actors. The aim is to speak about the design and development phase of the Setif tram project. Allowing researchers to develop a roadmap for their projects and helping decision-makers to pilot and manage such operations.
Setif有轨电车项目是一个重要的城市项目,具有动员性、战略性和创新性,它通过插入其主要的东西轴,代表其骨干,扰乱了城市的城市动态。本文旨在将该项目理解为一个城市项目,通过其发展过程,理解其方法,并确定一种新的姿态,即管理系统,其中“多元化”过程响应旨在政治行为者战略与公民行为者需求之间互补的战略方向。目的是谈谈塞提夫有轨电车项目的设计和开发阶段。允许研究人员为他们的项目制定路线图,并帮助决策者试点和管理这些行动。
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引用次数: 0
The influence of Ramial Fragmented Wood and manure on some physico-chemical parameters of a sandy loam soil in Constantine (Algeria) 木屑和肥料对阿尔及利亚康斯坦丁砂壤土理化参数的影响
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.3
I. Kerrouche, K. Bazri, D. T. Aza, M. L. Behouhou, A. Boukria, A.E.S. Zeltni, G. Ouahrani
The objective of our work is to study the influence of the contribution of Rameal Fragmented Wood (FRW) and cattle manure in the presence and absence of earthworms Octodrilus complanatus on some physicochemical parameters of a sandy loam soil such as porosity, carbon, nitrogen and C/N ratio. The study station is located in a semi-arid zone (Constantine, Algeria). The results obtained show that the contribution of FRW or FRW mixed with cattle manure in the presence and absence of earthworms Octodrilus complanatus has a beneficial effect on the studied physico-chemical parameters.
本研究旨在研究在有蚯蚓和无蚯蚓存在和不存在的情况下,糠屑木(FRW)和牛粪的贡献对砂壤土孔隙度、碳氮比和碳氮比等理化参数的影响。该研究站位于半干旱区(阿尔及利亚君士坦丁)。结果表明,在有蚯蚓和不含蚯蚓的情况下,牛粪中添加或掺入粪肥对土壤理化参数的贡献均有利。
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引用次数: 0
Imposters anomaly detection 冒名顶替者异常检测
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.14
A. Tazerouti, A. Ikram
Over the last two decades the world of cyber security has grown immensely, but despite the state-of-the-art security detection systems and intrusion detection systems (IDSs), unwanted malicious users still find their way around these security measures and gain access to secure systems. This study consists of shedding some light on the security issues in the intrusion detection systems, their vulnerabilities and drawbacks. A hypothesis is proposed to help mitigate these issues and obtain a fast and a more precise method for the detection of different malicious intruders and imposters, study their behavior and make a statistical comparison of data from the used IDSs and throughout the process. This study will state the current available technologies of IDSs, site their challenges and implement a new software-based methodology to increase the detection and reduce false alarm rates for the IDS.
在过去的二十年里,网络安全领域取得了巨大的发展,但尽管有最先进的安全检测系统和入侵检测系统(IDS),不受欢迎的恶意用户仍然可以绕过这些安全措施,访问安全系统。本研究旨在揭示入侵检测系统中的安全问题及其漏洞和缺点。提出了一个假设,以帮助缓解这些问题,并获得一种快速、更精确的方法来检测不同的恶意入侵者和冒名顶替者,研究他们的行为,并对所使用的IDS和整个过程中的数据进行统计比较。本研究将阐述IDS的当前可用技术,定位其挑战,并实施一种新的基于软件的方法,以提高IDS的检测能力并降低误报率。
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引用次数: 0
Contribution to the study of the semi theoretical approach of the hydraulic jump in a rectangular channel of compound section with rough major bed 对具有粗糙主河床的复合断面矩形河道水力跃变的半理论方法研究有所贡献
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.33
S. Lacheheb, A. Ghomri, S. Kateb
The purpose of this study is interested in the semi-theoretical analysis of the hydraulic jump evolving in a rectangular straight compound channel with rough major bed. A functional relationship, non-dimensional terms, linking together the different characteristics of the projection, is obtained.
本研究的目的是对具有粗糙主河床的矩形直复合河道的水跃演化进行半理论分析。得到了一种函数关系,即将投影的不同特征联系在一起的非量纲项。
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引用次数: 1
Non-linear backstepping speed control for Asian electric scooter uses 亚洲电动滑板车非线性反步速度控制
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.21
A. Nasri, H. Chergui, K. Korhan
The electric scooter has become very popular especially in large European and Asian urban areas, thanks to its some advantages. While its popularity is increasing, studies about these electric scooters are also increasing. The main objective of this study is to introduce the design of an autonomy extended electric three-wheeled scooter. For this aim, a model is obtained firstly and it is driven by two BLDC motors placed on the rear wheels independently controlled by a non-linear controller named as Backstepping. Indeed, it contains a powerful electronic differential system to ensure the security of passenger while entering the curved road. The studied model is simulated through the MATLAB Simulink environment where interesting results are shown in results.
由于它的一些优点,电动滑板车已经变得非常流行,特别是在欧洲和亚洲的大城市地区。在它越来越受欢迎的同时,关于这些电动滑板车的研究也越来越多。本研究的主要目的是介绍一种自主扩展的电动三轮滑板车的设计。为此,首先建立了一个模型,该模型由放置在后轮上的两台无刷直流电机驱动,由非线性控制器Backstepping独立控制。事实上,它包含了一个强大的电子差速系统,以确保乘客在进入弯道时的安全。通过MATLAB Simulink环境对所研究的模型进行了仿真,得到了一些有趣的结果。
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引用次数: 0
Valorization of date seeds for preparation of bio activated carbon 制备生物活性炭用枣籽的活化研究
Pub Date : 2021-01-01 DOI: 10.4314/JFAS.V13I1.16
F. Z. Benregga, A. Maghchiche, R. Nasri, R. Jraba
The date industry currently produces thousands of millions of metric tons of waste per year. Hence, there is an urgent need to find suitable applications for this waste which are still largely unused. The aim of this research is to value date waste and its potential application for water treatment. Three types of activated charcoal were prepared from the seeds of dates. Different essays were done for each material prepared (moisture rate and ash, pH, concentration, mass, granulometry). The Materials obtained were characterized by different methods like FTIR and BET. The results obtained indicate that the materials prepared from date seeds are low-cost activated carbon with an effective surface similar to commercial activated carbon which has an important economic advantage through the valuation of these wastes.
目前,枣业每年产生数十万公吨的废物。因此,迫切需要为这些大部分尚未使用的废物找到合适的应用。本研究的目的是评价枣废弃物及其在水处理中的潜在应用。以枣籽为原料制备了三种活性炭。对所制备的每种材料(水分率和灰分、pH值、浓度、质量、粒度)进行了不同的分析。用FTIR和BET等方法对所得材料进行了表征。结果表明,以枣籽为原料制备的活性炭具有与商品活性炭相似的有效表面,具有重要的经济优势。
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引用次数: 1
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Journal of Fundamental and Applied Sciences
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