Robustness Analysis of A Class of MPC Tuning Strategy
Conference paper

The classical Model Predictive Control (MPC) is still considered in many industrial applications, although advanced control methods have seen  significant development over the last few years. However, a lot of MPC strategies still suffer from  robustness to cope with a variety of process dynamics. For the MPC controller to work effectively,  it must be properly tuned. However, MPC is challenging and there is no ideal analytic method to  obtain exact solutions that result in the best desired responses. Based on that, this paper  investigate the robustness performance for a MPC tuning strategy. Three formulae were derived  (Proposed , Proposed  and Proposed ). These formulae are used for calculating the suppression coefficient. The three  formulae were derived by fitting the optimal empirical suppression coefficients for varies process  dynamics commonly found in industry. Simulation results show that the use of the proposed strategy results in good performance compared to other strategies previously proposed. The proposed   strategy also demonstrated a robust performance with respect to modelling errors of process  parameters. The results demonstrate the effectiveness and validity of proposed strategy when  compared with conventional strategies.


Abdulrahman A.A.Emhemed, Rosbi Bin Mamat, Hisyam Abdul Rahman, Daw Saleh Sasi Mohammed, (05-2024), 4th International Maghreb Meeting of the Conference on Sciences and Techniques of Automatic Control and Computer Engineering (MI-STA): IEEE, 1-7

Nutritional, Physicochemical and Organoleptic Properties of Cookies Enriched with Green Lentil Dietary Flour Proposed for Children
Journal Article


The aim of this study was to partially determine the nutritional and functional properties of cookies enriched with green lentil dietary flour proposed for children. The proposed cookies were enriched with lentil dietary flour at different concentrations, at the expense of the proportion of wheat flour. The cookies were divided into three different groups based on different formulas, the first group was without green lentil (control), while the other two groups were enriched cookies with green lentil flour “6%” and “12%”.

Results of protein analysis showed that cookies with 6% lentil flour had the highest protein content. Results of protein solubility indicated that cookies fortified with green lentil flour had the highest extraction values in comparison to the control samples. The molecular weight of proteins from ingredients (lentils, wheat, skimmed milk, whey protein, and egg), extracted by high ionic strength buffers, remained unchanged. The combination of ingredients normally impacts a change in proteins, but the major proteins preserve their nutritional characteristics even after being mixed in different formulas. The results showed that the dry matter and ash contents of cookie samples increased by the addition of lentil dietary flour. Colour measurement results showed that the control samples had the highest L* values, while samples of resulted in acceptable quality characteristics in both cookie types (6 and 12%). Overall, data indicates cookies enriched with green lentil dietary flour have fortified their protein and phytochemical contents. The utilization of protein powder derived from lentils may enhance the nutritional quality and functional properties of cookies that can be proposed for school and pre-school kids.

 

Abdulatef Mrghni Ahhmed Nesr, Şule Daştan2, Mustafa Çam, Naema Saad Gumma Shibani, Mustafa Tahsin Yilmaz, Shiro Takeda, Ryoichi Sakata, (05-2024), انجلترا: ECronicon open access, 19 (5), 1-17

Abdulatef Mrghni Ahhmed Nesr, Şule Daştan2, Mustafa Çam, Naema Saad Gumma Shibani, Mustafa Tahsin Yilmaz, Shiro Takeda, Ryoichi Sakata, (05-2024), انجلترا: ECronicon open access, 19 (5), 1-17

Optimizing Network Resilience with Segment Routing A Comparative Study of SR TI-LFA and rLFA
Conference paper

Abstract: Network operators are confronted with the demanding requirements resulting from the evolution of IP networks. As a result, it has become necessary to provide rigorous Service Level Agreements (SLAs) that are in line with these requirements. However, traditional IP networks lack the necessary flexibility, scalability, and manageability to meet these demands. In order to address these limitations, the segment routing (SR) architecture has been developed. SR is based on source-routing and tunneling paradigms, which enable IP/MPLS and IPV6 networks to operate in a simplified and more scalable manner. The focus of this paper is on network protection (resiliency) using Topology Independent Loop-Free Alternatives Fast Re-Route (TI-LFA FRR) using MPLS as the underlying technology. SR overcomes the limitations of previous network protection mechanisms in terms of coverage and optimal path selection. To show the effectiveness of SR TI-LFA in comparison to its predecessor, Remote Loop-Free Alternate (rLFA), we have implemented various scenarios. These scenarios are designed to highlight the superior capabilities of TI-LFA. 

Adel Ali Faraj Eluheshi, Mahmud Mansour; Najia Ben Saud, (05-2024), Libya: IEEE, 1-6

Design of Wireless Communication Network for the Idref Automated Control System II; Advancing Connectivity in the City of Rujban
Journal Article

The quest for reliable water access has been a critical endeavor throughout history, and Rujban

City is no exception. Faced with the challenges of aging infrastructure and reliance on external

water sources, Rujban is turning towards technological innovation for solutions. This paper

outlines the design of the communication component within the Idref Automated Control System

2 (IACS II), a significant advancement in the automation of Rujban's water distribution system.

This system innovatively connects the city's central distributed tank to three distributed tanks via

a robust wireless communication network, while maintaining a wired connection to the Idref

collection tank, the main control station, and associated monitoring rooms and pumps. The system

employs microcontroller-based automation to manage water levels, control signals, and monitor

pump activity and potential leaks, with data displayed on an LCD screen. This approach is poised

to dramatically improve the efficiency and reliability of water distribution in Rujban City, marking

a key step forward in addressing its water supply challenges.

Omar S. Jomah, (04-2024), Academy journal for Basic and Applied Sciences (AJBAS): الأكاديمية الليبية, 1 (6), 9-23

الأزمة الليبية في ضوء جهود البعثة الأممية : من طارق متري إلى عبدالله باتيلي، هل من مقاربة واقعية تجمع الفرقاء؟
مقال في مجلة علمية

  إثر ثورة 17 شباط/فبراير 2011، التي عصفت بنظام القذافي، دخلت البلاد في متاهة صراع مرير تعددت أدواته وأطرافه، مما ترتب عنه شرخ عميق أصاب المجتمع الليبي. وجدت ليبيا نفسها في فك التدخلات الخارجية الضارة، مما جعل من البلد ساحة صراع وتنافس لقوى دولية وإقليمية تخلق الأزمات وتساهم في زعزعة استقرار وأمن المنطقة برمتها. 

برغم الجهود التي بذلتها الأمم المتحدة في ليبيا، لم تفلح في تجاوز المعضلات التي تمثل جوهر الأزمة القائمة، ولم تنجح إلا في تقديم تصورات وخرائط طريق لتقاسم السلطة. كما لم تفلح تلك الترتيبات إلا في زيادة عدد المكونات أو عناصر الأزمة السياسية. وهو ما أثار الشكوك حول كفاءة وفاعلية البعثة الأممية ومقاربتها للحل في ليبيا، وفي الوقت نفسه، ثار الجدل حول جدوى تلك الجهود، وما إذا كانت فعلاً تحمل في جعبتها أفكاراً بنّاءة تفضي إلى فك رموز الأزمة الليبية وحلحلة كل تعقيداتها، بما يحقق الاستقرار والأمن وعودة الدولة موحدة بمؤسساتها.

الكلمات المفتاحية: الأزمة الليبية، المقاربة الأممية، التسوية السياسية، التدخل الخارجي، الولايات المتحدة الأمريكية

محمد عبدالحفيظ المهدي الشيخ، (04-2024)، بغداد: مركز الدراسات الاستراتيجية والدولية ، جامعة بغداد، 97 (2024)، 105-127

عناصر التفكير التصميمي في تخصص التصميم الداخلي
مقال في مجلة علمية

الملخص:

يعتبر التفكير التصميمي أسلوبا حديثا واستراتيجيا يركز على حل المشكلات وتحسين التصميم والتميز فيه , كما يقدم البحث الى فهم لمفاهيم التفكير التصميمي وتحديدها كأداة حيوية في مجال التصميم الداخلي ,حيث تشكل عناصر التفكير التصميمي استكشاف وتحليل الأساسيات

 المهمة للوصول لتصميم داخلي للفراغات بشكل مميز مع حل شامل لأغلب المشكلات التي تواجه المصمم في بداية تصميمه.

وجاء البحث في النقاط التالية:

•          في فهم مفهوم التفكير التصميمي كمصطلح وعلاقته بالتصميم الداخلي.

•          شرح لمراحل عملية التفكير التصميمي والتركيز على النقاط المهمة في هذه المراحل من حيث تطبيقها في مجال التصميم الداخلي.

•          تحليل العناصر التفكيرية وكيفية استخدامها وتأثيرها على جودة التصميم واستكشاف كيفية دمجها للوصول لتصميم مبتكر وجديد.

وخلاصة البحث تكمن في ان التفكير التصميمي نشاط أساسي ومهم يجب ان يمارسه المصمم الداخلي اثناء تصميمه لاي فراغ , مما يكون له الأثر في توفير المناخ الملائم للقيام بالأنشطة اليومية والحياتية المصمم من اجلها الحيز الداخلي, ومما يجعل التصميم جيد من حيث السلامة العامة وحماية الصحة والعيش براحة ومتعة في المكان.


summary

Design thinking is considered a method and strategy for research in solving problems for analysis and excellence in it. It also provides research to understand modern design thinking concepts and identify them as a vital tool in the field of design, as there are elements of design thinking to explore and analyze the basics.

 Now we reach the interior of the spaces in a distinctive way with a comprehensive solution to most of the problems facing those arising at the beginning of its design.

The research included the following points:

• In understanding the concept of design thinking as a term and its relationship to interior design.

• An explanation of the stages of the design thinking process and a focus on the important points in these stages in terms of their application in the field of interior design.

• Analyzing the thinking elements, how they are used and their impact on the quality of the design, and exploring how to combine them to reach an innovative and new design.

The conclusion of the research is that design thinking is a basic and important activity that the interior designer must practice while designing any space, which has an impact in providing the appropriate climate to carry out the daily and life activities for which the interior space is designed, and which makes the design good in terms of public safety, health protection, and living comfortably. And fun in the place.

ايمان محمد علي فرج، (04-2024)، جامعة الحاضرة: الحاضرة، 8 (8)، 212-235

Enhancing Data Center Performance using Virtual Extensible LAN (VXLAN) EmergingTechnology
Journal Article

Abstract As more and more people turn to the cloud for their personal and professional purposes, cloud computing has become essential for the majority of users. Given the increased demand for cloud virtualization, the datacenter needs to be able to accommodate more virtual machines (VMs) that are housed on its servers. A datacenter employing old technology may accommodate up to 4096 VLANs, which would restrict the number of tenants it could serve. Spanning-Tree Protocol (SPT) is used by VLANs to remove loops, or duplicates, which block half of the routes and waste available bandwidth. The Virtual Extensible LAN (VXLAN), an emerging technology, must be used from there. It permits network segmentation similar to that of regular VLANs without obstructing traffic or reducing scalability. This study outlined both established and novel approaches and then clarified how to use them for data center topology. It also covered the drawbacks of utilizing conventional technologies. The benefits of cutting-edge technology and its superior influence on datacenter bandwidth utilization. To demonstrate how the new technology enhances data center performance, these technologies were finally replicated using the Eve emulator.

Adel Ali Faraj Eluheshi, Zahra Abdalla Elashaal2 ; Asra Abobker Alazragh3, (04-2024), ليبيا: الأكاديمية الليبية, -2 (-6), 1-14

ليبيا: تجربة عشر سنوات في المصالحة الوطنية رصد المسار ومحاولة في نقد التجربة
مقال في مجلة علمية

  تتناول هذه الدراسة تجربة المصالحة الوطنية في ليبيا بعد مرور أكثر من عشر سنوات على اندلاع ثورة السابع عشر من شباط/فبراير عام 2011، وذلك من خلال رصد مراحلها المفصلية، مع التركيز على الاستراتيجيات والآليات المتنوعة التي وظفتها الدولة من أجل تحقيقها، وما إذا كانت هذه الإجراءات تتناسب مع حجم التركة المثقلة بالانتهاكات وجسامة الإرث الإنساني، وتطرح تساؤلات عدة تتعلق بمدى القدرة على مواجهة التحديات والعقبات التي حالت ولا زالت تعيق تحقيق مصالحة وطنية شاملة في ليبيا، وتحاول الدراسة نقد التجربة من خلال الوقوف على ثغراتها وأخطائها من أجل أفق جديد للتصالح في ليبيا.  

محمد عبدالحفيظ المهدي الشيخ، (04-2024)، مجلة دراسات وسياسات: المركز الليبي للدراسات ورسم السياسيات، 5 (2024)، 8-27

Study to Use Composite Materials in LNG Domestic Cylinder Structure
Journal Article

Abstract:

This paper explores the utilization of ANSYS software to replace traditional stainless steel in

Liquid Natural Gas (LNG) cylinders with a lightweight composite material called E Glass Epoxy.

The goal is to reduce the cylinder's weight through finite element analysis using ANSYS, adhering

to Libyan market standards. Stresses under internal pressure are analyzed and compared with

analytical solutions for steel cylinders. The study highlights weight reductions for steel and

composite LNG cylinders, emphasizing the practicality, utility, and safety considerations in

addressing the challenges faced by the Indian Gas supply system, especially for housewives

dealing with heavy stainless steel cylinders.

This project aims to provide a user-friendly alternative, maintaining gas storage efficiency while

significantly reducing cylinder weight

رمضان الشامس سعد وادي, (04-2024), مجلة الاكاديميةللعلوم الاساسية والتطبيقية: مجلة الاكاديمية للعلوم الاساسية والتطبيقية, 6 (1), 1-12

Integrated Production Modelling (MBAL Software) to define the Water Influx Model and Properties of an Aquifer for Libyan Undersaturated Oil Reservoir
Conference paper

  Reservoir performance prediction is important aspect of the oil & gas field development planning and reserves estimation which depicts the behavior of the reservoir in the future. This project is conducted in order to integrated production modelling with MBAL software to define the water influx model and its properties of an aquifer for Libyan oil reservoir. The objectives of this project are to determination the PVT of oil, gas, and water. Determination drive mechanism, identification of suitable water influx model and unknown parameter calculations. Define water influx using influx model. Define properties of an aquifer. Material balance software is used as principal method in order to achieve the objectives of those objectives. Based on the Material balance software results, the main source of energy in reservoir was from Water influx, pore volume, and fluid expansion drive mechanism. At the begging, the fluid expansion is from 0 to 40 % and pore volume compressibility is from 40 % to 64 % and the water influx is from 64 % to 100%, after that we has water injection. The model for this reservoir is the Hurst-van Everding-Odeh with the system is radial aquifer. Finally, central objective of this paper with the help of reservoir simulation fulfilled to know the water influx model and its properties and to produce future prediction that will lead to optimize reservoir performance which meant reservoir developed in the manner that brings utmost benefit to the commercial business.

Madi Abdullah Naser Abdullrahman, (04-2024), TOGSE2024: Petroleum Research Center, 1-44