The Necessary and Sufficient Optimality Conditions for a System of FOCPs with Caputo–Katugampola Derivatives

doi:10.21123/bsj.2023.7515

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Publication Date

Sun Oct 01 2023

Journal Name

Baghdad Science Journal

Volume

20

Issue Number

5

DOI

10.21123/bsj.2023.7515

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The Necessary and Sufficient Optimality Conditions for a System of FOCPs with Caputo–Katugampola Derivatives

Calculus of variations

Caputo–Katugampola fractional derivative

Hamiltonian system

Necessary and sufficient optimality conditions

Optimal control

Moataz Abbas Holel

Sameer Qasim Hasan

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The necessary optimality conditions with Lagrange multipliers are studied and derived for a new class that includes the system of Caputo–Katugampola fractional derivatives to the optimal control problems with considering the end time free. The formula for the integral by parts has been proven for the left Caputo–Katugampola fractional derivative that contributes to the finding and deriving the necessary optimality conditions. Also, three special cases are obtained, including the study of the necessary optimality conditions when both the final time and the final state are fixed. According to convexity assumptions prove that necessary optimality conditions are sufficient optimality conditions.

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Publication Date

Thu Feb 01 2024

Journal Name

Journal Of Orthodontic Science

Antimicrobial behavior of nanocoated orthodontic micro-implants: An in vitro study

Samer Salim

Amr Abd-Elmonaem

Mohammed Abdullah

Qusay Adnan

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OBJECTIVE:

The need to overcome the failure of orthodontic micro-implants which might reach to 30% has led to the development of different methods, one of which is nanoparticle deposition.

AIM OF STUDY:

To evaluate the anti-microbial efficiency of TiO₂ and ZnO nanoparticles (NP) when used as a coating for orthodontic micro-implants.

METHODS:

Thirty titanium alloy micro-implants were used in the presented study. They were divided into three

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(4)

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Sat Mar 01 2014

Journal Name

Renewable Energy

Field study of various air based photovoltaic/thermal hybrid solar collectors

Hybrid collector

PV/T

Solar

Electrical

Thermal

Performance

Karima E.

Mustafa Adil

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In the present work a comparative study for thermal and electrical performance of different hybrid photovoltaic/thermal collectors designs for Iraq climate conditions have been carried out. Four different types of air based hybrid PV/T collectors have been manufactured and tested. Three collectors consist of four main parts namely, channel duct, glass cover, axial fan to circulate air and two PV panels in parallel connection. The measured parameters are, the temperature of the upper and the lower surfaces of the PV panels, air temperature along the collector, air flow rate, pressure drop, power produced by solar cell, and climate conditions such as wind speed, solar radiation and ambient temperature. The thermal and hydraulic performances o

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(109)

Publication Date

Wed Jan 01 2025

Journal Name

Renewable And Sustainable Energy Reviews

Superiority of liquid membrane-based purification techniques in biodiesel downstream processing

Khalid M.

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Publication Date

Mon Feb 01 2016

Journal Name

Journal Of Engineering

Environment Friendly Eco - City

urban sustainability

Natural environment

urbanism

ecological system

functional ecological zoning

Bahgat Rashad

Maryam Faisal

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The World witnessed over the past few decades a clear change in the urban existence map, where the number of cities' residents has increased and the cities geographic area expanded, also networks of roads and electric power stations were spread. This extraordinary events caused the drawing of a different identity to the world, race with itself in the field of energy and raw materials consumption. Therefore, the research issue individualizes in the lack of available knowledge concerning the subject of environment friendly ecological urban desiging and planning.So the research aims to define the environmentally friendly eco-city' structural elements and to clarify their most important planning and design foundations. To In

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Publication Date

Mon Jun 17 2024

Journal Name

Warith Scientific Journal

قياس وتحليل متطلبا (التخطيط والدعم) على وفق المواصفةIATF 16949: 2016 / دراسة حالة في الشركة العامة لصناعة السيارات والمعدات

الجودة

نظام إدارة الجودة

المعيار الدولي (ISO 9001:2015) و IATF 16949:2016).

بارق

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The article is final after making all the modifications. 2,259 / 5,000 يهدف البحث إلى قياس وتحليل الفجوة بين الواقع الفعلي لبنود التخطيط والدعم وفق المواصفة (IATF16949:2016) في مصنع البطاريات أحد مصانع الشركة العامة لصناعة وتجهيز السيارات، وكذلك التعرف على نقاط القوة والضعف لبنود التخطيط والدعم وفق المواصفة محل البحث. ينطلق البحث من حاجة الشركة العامة لصناعة وتجهيز السيارات إلى إتباع المعايير العالمية في صناعة السيارات والمنتجات المرتبطة بها،

Publication Date

Sun Oct 06 2013

Journal Name

Journal Of Educational And Psychological Researches

رؤية وانموذج- مقترح للارشاد النفسي والتوجيه التربوي في ظل نظام ادارة الجودة الشاملة

ئاسو صالح سعيد

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The global challenges of contemporary facing societies urge to seek and move to adopt the style conscious in the face of these challenges and work on the investment of human resources and energies humanitarian efficient and effective for the development of the institutional and Management and make it more efficient and effective and meets the requirements and keep pace with global developments , and more aspects of managerial aim is Total Quality Management , as it has become thanks to the sheer amount and large accelerated technical developments and information and communication technologies , which feature of this era , and in the field of education , the charge of it are seeking through the application of total quality management to b

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Publication Date

Mon Dec 30 2019

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Enhanced conversion of Glycerol to Glycerol carbonate on modified Bio-Char from reed plant: Enhanced conversion of Glycerol to Glycerol carbonate on modified Bio-Char from reed plant

Glycerol Carbonate

Glycerol

Pyrolysis

Transesterification reaction

Biochar .

shafaa dhyaa

Muthana

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The surplus glycerol produced from biodiesel production process as a by-product with high quantity can be considered as a good source to prepare glycerol carbonate (GC) whereas with each 1000 kg from biodiesel obtains 100 kg from glycerol. Glycerol converted to glycerol carbonate over bio-char as a catalyst prepared by slow pyrolysis process under various temperatures from 400 ᴼC to 800 ᴼC. The char prepared at 700 ᴼC considered as a best one between the others which was manufactured to activate the transesterification reaction. GC have large scale of uses such as liquid membrane in gas separation, surfactants ,detergents , blowing agent , in plastics industry, in Pharmaceutical industry and electrolytes in lithium batteries.

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(2)

Publication Date

Sun Jun 02 2019

Journal Name

Journal Of The College Of Languages (jcl)

Using poetry in teaching Russian language in university of Baghdad / faculty of langu: Использование поэзии в процессе обучения русскому языку на кафедре русского языка факультета языков Багдадского университета

Russian language for foreigners. Arab students

Iraq

Poetry

Poeticalness

Students.

русский язык как иностранный

арабские студенты

Ирак

стихи

поэзия

студенты..

Ghadah Tarek

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There are many methods of teaching foreign language to non-native speakers now therefore the discovery of new methods - which make students understand the language , vocabulary & saves them as soon as possible – becomes one of the most important duties of teachers and educators .

The personal experience shows that the teaching of the Russian language through memorizing Russian poetry is one of the fastest ways to master the language and know its rules and also improve the ability of translating vocabulary and being not able to save the Russian words only , but to make it complete too. Poetry is an article or text which loves by people and en

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Publication Date

Sat Oct 01 2016

Journal Name

Journal Of Theoretical And Applied Information Technology

Factors affecting global virtual teams’ performance in software projects

Today the trend is to perform software development work via distributed geographical area among team

individual or even as an organization. However

due to the global market and international presence of many companies

there is a need to implement a global virtual teams. The global virtual team members are gradually engaged in globalized business environments across space

time and organizational boundaries via information and communication technologies. A global virtual team relies on communication

collaboration

and information exchange are the most important criteria in global virtual teams’ operations. The purpose of this paper is to answer two research questions. The first research question is to identify the factors affecting global virtual teams’ performance. A systematic literature review was conducted to answer the first research question. The second research question is on what the rank of the factor affecting the global virtual teams’ performance according to their level of effect on global virtual teams’ performance. Online survey was conducted within 103 developers and IT managers from eight IT companies to answer the second research question. The Statistical Package for Social Science (SPSS 22) was used to analyze the collected data. In this study

we investigated factors that affect global virtual teams’ performance

factors considered include cultural differences

language problems

time-zone differences

team size

technical problems

lack of trust

lack of sufficient training

and ICT problems. Also the findings indicated that lack of sufficient training is the highest level of effect on global virtual teams’ performance. On the other hand

Ali Yahya Gheni

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(24)

Publication Date

Wed Dec 30 2020

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Petrophysical Properties of Khasib Formation in East Baghdad Oil Field Southern Area

petrophysical properties

well logs analysis

carbonate formation

layth Abdulmalik

Fadhil S.

Hussein

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Petrophysical properties evaluation from well log analysis has always been crucial for the identification and assessment of hydrocarbon bearing zones. East Baghdad field is located 10 km east of Baghdad city, where the southern area includes the two southern portions of the field, Khasib formation is the main reservoir of East Baghdad oil field.

In this paper, well log data of nine wells have been environmentally corrected, where the corrected data used to determine lithology, shale volume, porosity, and water saturation. Lithology identified by two methods; neutron-density and M-N matrix plots, while the shale volume estimated by single shale indicator and dual shale indicator, The porosity is calculated from the three common po

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