bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of the sampling frequency on various MPPT commands: A comparative study on the new intelligent control strategy developed by the robust neural network algorithm for real time detection of the maximum power point with optimized noisy empirical data for optimal power point tracking control in photovoltaic systems
Authors: ISSAADI Wassila , ISSAADI Salim
Published: July 2022

It is widely admitted that the use of renewable energy is experiencing
significant growth throughout the entire world. With the increasing
demand for electric power, mainly for the needs of remote, desert and
mountainous regions, the photovoltaic energy systems started finding
great applications, particularly in telecommunication and water pumping
systems.
Intensive Multi-Disciplinary Outpatient Rehabilitation for Facilitating Return-to-Work after Acquired Brain Injury: A Case-Control Study
Authors: Moreno Legast Gabriela , Durand Amandine , Aboulafia Brakha Tatiana , Schnider Armin , Guggisberg Adrian G.
Published: July 2022

Objective: Return-to-work is often the most important objective of working-age patients with acquired brain injury, but is often difficult to achieve. There is a lack of evidence for effective treatment. This study aimed to assess the benefit of a multidisciplinary neurorehabilitation in a daytime hospital on return-to-work after an acquired brain injury.Design: Retrospective case-control study.Patients: Acquired brain injury patients between 18 and 65 years of age.Methods: Two periods, before (n = 82 patients) and after (n = 89 patients) the implementation of a daytime hospital in our neuro-rehabilitation unit were compared. Patients followed in the daytime hospital received intensive, interdisciplinary, coordinated, individual and group-level physical, cognitive, and vocational rehabilitation. During the control period, patients received outpatient neurorehabilitation with less intensive treatment without interdisciplinary coordination. The main outcome was the proportion of patients returning to > 50% of their premorbid work activity.Results: Fifty-five percent of patients were able to resume more than 50% of their premorbid work level in the daytime hospital period vs 41% in the control period (p = 0.076).Conclusion: Intensive and coordinated outpatient neurorehabilitation may facilitate return-to-work after an acquired brain injury.
LAY ABSTRACTAcquired brain injury is a common health issue, most frequently caused by head trauma or stroke. Acquired brain injury patients of working age often have difficulties in returning to work, which greatly impairs their quality of life. They often receive insufficient rehabilitation care, partly also because of a lack of evidence regarding intensive rehabilitation in this patient group. This study aimed to assess the benefit of multi-disciplinary neurorehabilitation in a daytime hospital on return-to-work after acquired brain injury. The study compared the rate of return-to-work during the first 2 years after implementation of a daytime hospital to a control period of 2 years before. The daytime hospital provided intensive, interdisciplinary, coordinated, individual and group-level physical, cognitive, and vocational rehabilitation. During the control period, patients received outpatient neurorehabilitation with less intensive treatment without interdisciplinary coordination. The results show that more patients were able to resume work, at more than 50% of their premorbid work level, since the introduction of the daytime hospital.
Antithymocyte globulin versus basiliximab induction for kidney transplantation in elderly patients: matched
analysis within the Korean multicentric registry
Authors: Lee Jun Young , Kim Sung Hwa , Park Yeon Ho , Park Jae Berm , Lee Su Hyung , Yang Jaeseok , Kim Myoung Soo , Kim Deok Gie ,   the Korean Organ Transplantation Registry Study Group
Published: July 2022

Background: Basiliximab (BSX) and antithymocyte globulins (ATGs), are two major immunosuppressive agents commonly used as induction therapy for kidney transplant (KT) recipients. The superiority of ATG over BSX has not been well established, especially in elderly KT recipients with low immunological risk. Methods: A total of 847 elderly (≥60 years old), low-risk KT patients in the Korean Organ Transplantation Registry were propensity score-matched at a 1:2 ratio and compared according to ATG or BSX induction therapy. The primary outcome was patient and graft survival and biopsy-proven acute cellular rejection. The secondary outcome was graft function, BK virus nephropathy, infection, cancer, new-onset diabetes mellitus after transplantation (NODAT), and delayed graft function. Results: In total, 165 patients in the ATG group were matched with 298 patients in the BSX group with average ages of 64.3 and 64.2 years, respectively. During a follow-up of 28.5 ± 10.4 months, the cumulative probabilities of death-censored graft failure at 3 years posttransplantation were 1.3% and 1.4% in ATG and BSX groups, respectively, without a significant difference (p = 0.72). The cumulative probability of NODAT at 3 years posttransplantation was significantly higher in the BSX group (35.6% vs. 21.6%, p = 0.02). The median tacrolimus trough level was significantly lower at 6 months after KT in the ATG group (5.7 ng/mL vs. 6.4 ng/mL, p = 0.001). There were no differences in the other evaluated outcomes. Conclusion: Compared with BSX, in elderly, low-risk KT patients, ATG reduced tacrolimus and steroid requirements without differences in all-cause mortality, rejection, or infection, resulting in a reduced NODAT incidence.
Konsep Moderasi Pidana Mati RKUHP dalam Perspektif HAM dan Kepentingan Negara
Authors: Triantono Triantono , Marizal Muhammad
Published: July 2022

The debate over the imposition of the death penalty has long existed between the Abolitionists and Retentionists. The core problem of the debate is that the death penalty intersects with human rights and the interests of the state in maintaining public order. Indonesia, which chooses to apply the death penalty, cannot be separated from these two problematic aspects. This study aims to answer two problems: first, the death penalty debate in Indonesia including its historical aspects; second, the concept of middle ways (moderation) of the death penalty in the Draft of the Criminal Code (RKUHP). This is a normative legal research in which data are collected through library research on legal materials. The gathered data are analyzed in a qualitative description to answer the problems posed in the research. The results of the study show that the death penalty has become a part of the history of Indonesia due to the complexity of the legal system in Indonesia which is influenced by the Dutch, local custom, and Islamic legal systems. The concept of a middle way (moderation) of the death penalty in the RKUHP has placed the death penalty not as a principal penalty but is specific and alternative. Its implementation is also carried out after the probationary period. This is an interesting concept to bridge the death penalty debate in Indonesia. However, there are still problems related to changes to the death penalty, clemency issues, the length of delay in the death penalty and institutions that can amend the death penalty. In addition, there are also problems in determining the death penalty as a result of very serious crimes, because the indicators of most serious crimes have not been determined in a harmonious and consistent manner.
“Que dizen acá de ganancia”. Discursos en torno a la bastardía a través de algunos textos bajomedievales castellanos
Authors: Dacosta Arsenio
Published: July 2022

En este trabajo se analizan testimonios referidos a la bastardía en algunas fuentes castellanas bajomedievales, particularmente legales e historiográficas. El foco se pone en la expresión “hijos de ganancia”. Se desarrolla la hipótesis de que pudiera corresponderse, en el caso de la realeza y la aristocracia, a aquellos hijos ilegítimos que potencialmente podrían ser legitimados. Tras estudiar algunos de los roles de esta descendencia ilegítima se reflexiona acerca del cambio social operado en la Corona de Castilla a finales de la Edad Media en términos de clasificación y estratificación social.
Una memoria ficticia: toponimia y disputas diocesanas en la Divisio Wambae
Authors: García Izquierdo Iván , Peterson David
Published: July 2022

La Divisio Wambae es el nombre de un texto que recoge una hipotética división diocesana efectuada en época visigoda. Se trata de un códice polémico cuya elaboración se sitúa en torno al año 1100. Con el objetivo de poder arrojar algo de luz sobre el papel que pudo desempeñar dentro de la geografía episcopal plenomedieval y los conflictos interdiocesanos, este trabajo prestará atención a las divisiones reflejadas en el texto mediante su comparación con otros documentos eclesiásticos. Para ello trataremos de cartografiar los topónimos allí representados aceptando que se trata de un texto problemático. En consecuencia, no perseguimos tanto una plasmación cartográfica más o menos definitiva, sino la búsqueda de un sentido a la composición que ayude a entender el significado de los lugares no identificables, dentro del contexto de las disputas por la jurisdicción diocesana acaecidas en la Meseta en torno al siglo XII.
Testimonios notariales sobre el arte de la seda en Toledo a comienzos del siglo XVI (1503-1516)
Authors: Puñal Fernández Tomás
Published: July 2022

El presente trabajo analiza los registros notariales de Toledo de principios del siglo XVI en busca de información sobre la industria de la seda en un periodo en que se inicia su expansión y desarrollo, para conocer algunos de sus aspectos sociales, económicos y laborales.
De Medina (del Campo) a La Meca: La actividad profesional de Omar Patón en Medina del Campo
Authors: Rodríguez Plaza Jesús
Published: July 2022

A finales de 1491, el moro abulense Omar Patón emprendía su viaje de peregrinación a La Meca y, precisamente, cierta documentación medieval del Archivo Municipal de Medina del Campo recoge información inédita acerca de la actividad profesional de Patón como alarife en las obras de la cerca de la Villa de las Ferias poco antes de partir. En este artículo proponemos un análisis de su participación en estas obras, de su relación y vínculos con otros colegas que participan al tiempo en ese y otros contratos (principalmente, Mahomad Patón y Brayme Leta) y de las consecuencias de su partida para el desarrollo de los encargos medinenses. Así también, ofreceremos algunas observaciones a los trabajos que pudo desempeñar el alarife durante su viaje para costearse el mismo y las citas en su relato de peregrinación o riḥla a su oficio, lo que viene a arrojar más luz sobre la biografía del personaje.
PRUNED ANN MODEL FOR THREE PHASE INDUCTION MOTOR OPERATING CONDITIONS CLASSIFICATION
Authors: Ali Khudhair Mutlag
Published: July 2022

The Artificial Neural Networks (ANN) have become a very useful tool in a wide range of engineering applications. In this paper, feed forward neural network Optimal Brain Surgeon (OBS) pruned model is proposed to classify the operating conditions of three phase induction motor. The proposed model had been trained with error back propagation training algorithm using frequency and voltage as input signals with nine possible operating conditions (faulty and healthy) acting as output neurons of the neural network model. The simulation results show that the pruned ANN model can perform perfect classification for the operating conditions of three phase induction motor.
WEAR RESISTANCE IMPROVEMENT OF 41CR4 STEEL ALLOY BY LASER SURFACE HARDENING
Authors: Dhia Ahmed Salal
Published: July 2022

In this paper an overview is given about laser surface modification process, which is developed especially with the aim of wear resistance improvement. Pulsed Laser was applied to 41Cr4 steel alloy specimens using a Nd: glass laser. Laser processing parameters examined in the present study included power density (3*10^5 to 9.5*10^5 W/cm²). The power density and interaction distance was chosen such that the maximum temperature approaches the melting temperature. The importance of sufficiently high temperatures has already been recognized to reduce the wear rate at the highest power density. The 41Cr4 steel alloy samples were examined using optical microscopic inspection, microhardness test to determine the metallurgical phases and pin-on disc machine was used to estimate wear resistance. It was found in this study the microstructure were relatively dependent of laser power density. However, the laser power density had a significant effect on structural and mechanical properties especially wear resistance in a given power density level
ROTATION OF LOCAL COORDINATE FOR ANALYSIS DRAWING PPROCESS OF METAL POLYGONAL SECTION BY (FEM)
Authors: Faris Saad
Published: July 2022

The most important activity of metal forming technology is the correct design of stages geometry for economic consideration in order to increase the metals utilization coefficient and the productivity realized products with high dimensional accuracy and a finer quality of worked surface.In this Study the rotation of local coordinate by using finite element method through (M. S. C / Nastran ) are investigating with influencing of some parameters such as , Reduction area , Simi die angle and friction factor to obtain the stresses and strains developed during the drawing process of polygonal section from round section .The results show that its possible to use the technique of rotation of local Coordinate in all programs of ( F.E.M ) to analysis metal forming process especially when the friction factor = 0.1 , Simi die angle = 9, Reduction area =35% which are gives good agreement to the results  of ( U.B.T )and the practical results.
THE MANUFACTURE OF PERCHLORATE BY DIRECT METHOD USING GRAPHITE SUBSTRATE LEAD DIOXIDE (GSLD) ANODE
Authors: Ahmed D. Wiheeb
Published: July 2022

Sodium perchlorate has been prepared electrochemically from sodium chloride solutions in one step by passing a direct current through the solution , in the presence of certain addition agents (like sodium fluoride). A laboratory electrolytic cell has been designed to obtain experimental results for the preparation of sodium perchlorate. A solution of sodium chloride (290 g/l ) and sodium fluoride  (2 g/l )  is electrolyzed in a batch wise. A stainless steel cathode and Graphite substrate lead dioxide (GSLD) anode are satisfactory . The influence of anodic current density , temperature ,and  pH of electrolyte on current efficiency of sodium perchlorate formation were studied. The current efficiency of about 68% was obtained by using (GSLD) anode
EVALUATION OF ELASTIC DEFLECTIONS AND BENDING MOMENTS FOR ORTHOTROPICALLY REINFORCED CONCRETE RECTANGULAR SLABS SUPPORTED ON THREE EDGES ONLY AND SUBJECTED TO TRIANGULAR LOAD
Authors: Sarmad S. Abdul-Qader AL-Badri
Published: July 2022

This paper deals with the evaluation of the elastic deflections and bending moments for orthotropically reinforced concrete rectangular slabs supported on three variously restrained edges with the fourth edge free and subjected to triangular load covering the slab full area. Six cases are considered for such slabs to cover all possible restraining conditions at the three supported edges. Based on the finite difference approach, equations are derived to calculate the maximum values of the positive and negative bending moments as well as the maximum deflection in any of these six slab cases caused by the applied triangular load.
CPU SCHEDULING SIMULATION
Authors: Yousra Ahmed Fadil
Published: July 2022

CPU scheduling is the basis of multiprogrammed operating system. By switching the CPU among processes, the operating system can make the computer more productive. The objective of multiprogramming is to have some process running at all times, in order to maximize CPU utilization. This paper presents a simulator that uses graphical representation to convey the concepts of various scheduling algorithms for a single CPU. It allows the user to test and increase his understanding of the concepts studied by making his own scheduling decisions, through the very easy graphical user interface of the simulator. It graphically depicts each process in terms of what the process is currently doing against time. Using this representation it becomes much easier to understand what is going on inside the system and why different set of processes are candidate for allocation of the CPU at different time.In this paper, we introduce the basic scheduling concepts and present several different CPU – scheduling algorithms in visual way.
EXPERIMENTAL INVESTIGATION ON MAKHOOL DAM STILLING BASIN
Authors: Muhanad Mohammed Abbas
Published: July 2022

This research is an experimental investigation on the hydraulic performance of the combined hydraulic jump and plunge pool stilling basin operating under high head for Makhool Dam. Two series of tests are carried out; the first series are on the model as it is designed, while the second series are on a modified model by adding two rows of chute blocks.

           (81) Experiments are performed on both models. The results indicated that for the first model the stilling basin length can be reduced and there is negative pressure at the beginning of the jump on the sloping apron with high turbulence and unstable water surface. After adding the chute blocks, the tests of the second model indicated that the stilling basin length can be reduced and all pressures are positive with reasonably stable water surface as well as lower turbulence. Therefore, chute blocks are recommended to be added
STUDYING THE STRESS ANALYSIS IN LEAF SPRING BY FINITE ELEMENTS METHOD
Authors: Abdul Karim Selman Abdul Karim
Published: July 2022

Light truck is considerably crucial for all the world economic growth since it was used in transportation for various kinds of commodities. Leaf spring is the most admire alternative utilized in the suspension system of this specific truck due to their low production cost, reliability and maintainability. In this, study a rational technique to design leaf spring for light truck is investigated. Simulation resembles to constrained condition when mounting on the vehicles were undertaken to examine the stresses distribution for each leaf. In this research the leaf spring is used on light truck with following  information:

Number of leaves equal five, Thickness of each leaf equal 10mm, length of distance from vertical line that divides the leaf spring to two equal parts, to one end of side of leaf spring, varies from (500 to 1000)mm, Radius of bow- shaped leaf spring varies from (1250 to 3000)mm and constant load applied on the first leaf equal 1000N on each side. The number of cases studied equal 24 case. The finite element method was applied as a method of analysis to examine the stress distribution for each leaf.
تقييم بعض المواصفات الميكانيكية لوصلات لحام الفولاذ مقاوم الصدأ الاوستنايتي (316L)
Authors: ALazzawi Sami Ali
Published: July 2022

تناول هذا البحث إنتاج وصلات لحام من الفولاذ مقاوم الصدأ الاوستنايتي (316l ) بطريقة لحام القوس الكهربائي المعدني المغلف بالصهيرة (  SMAW ) باستعمال أربعة أنواع من أقطاب اللحام هي ( E7018 ، E6013 ، E309L ، E308L ) مع ثبات متغيرات اللحام الأخرى إذ كان سمك الصفيحة ( 6mm ) وتيار اللحام (120A ) والفولتية (  78V ) والقطبية العكسية ( DCRP ) وقطر القطب ( 3.25 ) ملم . وتم أجراء فحوصات مختلفة شملت الفحص العياني والتصوير بالأشعة السينية وفحص طور دلتا – فيرايت وفحص البنية المجهرية . وكذلك تم أجراء الاختبارات الميكانيكية ومنها اختبار الشد ، اختبار ألحني واختبار الصلادة الدقيقة.

أظهرت النتائج أن القطبان ( E308L ،E309L ) كانا ملائمين في لحام الوصلات من الفولاذ مقاوم الصدأ (316L ). وبينت نتائج الشد بتقارب النتائج للملحومات ولكافة الأقطاب المستعملة باستثناء الملحومات باستعمال قطب اللحام ( E6013 ) حيث كانت تبتعد بانحراف معياري 30%.

وفي معظم الملحومات ظهرت صلادة منطقة اللحام أعلى من صلادة المنطقة  المتأثرة  بالحرارة (HAZ) والمعدن الاساس . وأوضحت نتائج الفحص لطور دلتا – فيرايت في الملحومات أن قيمة دلتا – فيرايت تتراوح من
THE INFLUENCE OF APEX ANGLE ON MIXED CONVECTION IN A POROUS SECTOR CHANNEL
Authors: Manar Salih Mahdi
Published: July 2022

The influence of apex angle on mixed convection in a horizontal porous sector channel is investigated. The analysis is performed by considering fully- developed hydrodynamically and thermally flow. The governing equations have been solved numerically using finite difference method. The channel is heated from the right surface, and cooled from the left one –both are held at constant temperature- while the top surface is adiabatic. The numerical analysis has been conducted in the following range of parameters: radius of the sector=4, (Pe=20(, (Ra*=100 and 1000(, the apex angle (Φ=30o, 60o, 75o and 90o). The results are presented to demonstrate the effect of increasing the apex angle on the streamlines, the isotherms and local Nusselt number. The highest stream function appears in a specified apex angle depending on Ra*. The local Nusselt number values are decreasing as the apex angle is increasing at (Ra*=1000), while at (Ra*=100) its values are increasing as the apex angle is increasing. A correlating equation is suggested to correlate ( (against apex angle (Φ) and (Ra*( for  )Pe=20(.
IMPROVEMENT OF GYPSEOUS SOIL BY PRE-WETTING
Authors: Awn Safa Hussain Abid
Published: July 2022

Gypseous soil is one of problematic soils facing civil engineer.  The problem appears when constructing heavy buildings or hydraulic structures on these soils after wetted by water from rainfall or from the raising of water table level from any source.

          On the other hand gypseous soil is considerably strong and has good properties when it is dry. The dissolution of gypsum depends on many factors: gypsum content, temperature, atmospheric pressure and others. Number of Remedies for these soils was carried out by many investigators, some of these methods are not workable, and the others are expansive.

           A new method of improving the collapsibility of such soil was presented by Prewetting Gypseous soil with water many cycles using laboratory and field models with different footing stress, which reduces the collapsibility of this soil primary. A laboratory model of 320 mm diameter and 472 mm height made from thick plastic was used.  Two soils with different gypsum content 50% and 70%, brought from Aldor and Balad, in Salah Al Deen government in Iraq, was used.  A footing of circular base (50 mm diameter), applies 45 kN/m2 and 100kN/m2 stresses with the aid of fix weights placed on it.  The results of laboratory tests on the model samples shows a considerable reduction percent in the deformation ratio (Settlement/width of footing (S/B)) of 63% achieved from the 3rd wetting cycle by water for sample contain 50% gypsum.  The reduction percent was 91% at the 3rd cycle of prewetting for sample containing 70% gypsum tested at stress level up to 45kN/m2, while it is 86% for the laboratory model with 100kN/m2 applied stress, with the same gypsum content.  The results of field test for the soil containing70% gypsum tested at 100kN/m2 stress shows a pronounce improvement in the S/B value which gives a reduction percent reaches 90 %, which shows a considerable improvement in the collapsibility of this problematic soil.
دراسة تأثير التقسية بزيت المحركات فاقد اللزوجة والمراجعة على بعض الخواص الميكانيكية لسبيكة الفولاذ (CK 38)
Authors: حاتم عبد حسن
Published: July 2022

يهدف البحث لتحسين بعض الخواص والمواصفات الميكانيكية للفولاذ الكربوني السبيكة (CK38) و منها (إجهاد الخضوع , أقصى إجهاد شد , إجهاد الكسر  ,اجهادات القص , المطيلية ,  مقاومة الصدمة و طاقة الكسر الديناميكية و الاستاتيكية ) من خلال تقسية (15) عينة لكل من اختبار الشد والصدمة بالزيت الفاقد للزوجته و وظيفته التزييتية كوسط تقسية مع التدوير للزيت عند إجراء التقسية ثم المراجعة عند درجة حرارة 260 oC  ,  460 oC , 650 oC )  ( ( أي (3) عينات لكل درجة حرارة مراجعة   ,(5) لاختبار الصلادة و (1) لاختبار التركيب الكيمياوي . و تمت مقارنة مواصفات وخواص العينات قبل المعاملة الحرارية بمواصفات وخواص العينات بعد المعاملة الحرارية  لغرض بيان إمكانية استخدامها في تصنيع أجزاء هندسية كثيرة وهامة المكائن والمعدات والعدد والقوالب وقد بينت النتائج ان المعاملة الحرارية المنفذة أحدثت تحسينا في المطيلية , إجهاد الخضوع    أقصى إجهاد شد , إجهاد الكسر  ,اجهادات القص  ,مقاومة الصدمة  ,الصلادة وطاقة الكسر الديناميكية و الاستاتيكية مما يوسع مجال استخدامها في التصنيع
AN EFFICIENT REARRANGEMENT OF DATA FOR GRAY IMAGE COMPRESSION BASED ON WAVELET TRANSFORM
Authors: Hussain F. Mahdi
Published: July 2022

In this paper a new method is a proposed for gray image compression based on re-ordering the data of image before applying a wavelet transform. The advantage of converting the color image into luminance-chrominance color space is that the luminance and chrominance components are very much decorrelated between each other. Moreover, the chrominance signals contain much redundant information and can easily be subsampled without sacrificing any visual quality for the reconstructed image

     In this paper a rearrangement of the gray image data is done by dividing it into three components (similar the RGB components of the color image) and convert color space from RGB to YCbCr (Y: luminance, Cb chrominance/blue, and Cr is chrominance/red) then apply wavelet transform. This method can return information more than wavelet method therefore very good result and high PSNR are obtained when it is compared with wavelet transform
STUDY THE SYMMETRIC- PLASTIC DEFORMATION MECHANISM OF CIRCULAR SHEETS IN CYLINDRICAL DIE
Authors: Dawood  Ali Sameer
Published: July 2022

In this study a numerical procedure was proposed for the design of deep drawing process using finite element method (F.E.M) through program code (ANSYS 11) simplified 2-D ax symmetric model of conical cup are been developed. This research thoroughly investigates the axsymmetric deformation mechanism to evaluating the formability of sheet metals and to study the effect of some parameters which influence the drawing process such as: Die geometries, friction coefficient, It reveals how plastic regions in a work piece appear and spread and how they vary with punch diameter and also shows the distributions of strains , internal forces and proposes approximate model for engineers than analyses the deformation of such work pieces and evaluate the formability of metal materials.The prediction of the plastic wrinkling of a sheet during forming operation in the experimental study is a good agreement with the present numerical analyses are carried out for work pieces of thicknesses 1.5 mm and 2 mm with diameters 120 mm and 150 mm respectively, The diameters of cylindrical punches are 45 mm and 65 mm respectively, using Ansys 11 program which was recently developed and has good prospects for engineering applications.
دراسة كفاءة الأداء للبناء الجاهز بحث تطبيقي على بناية قسم الهندسة المدنية-جامعة تكريت
Authors: هناء خليل ألبياتي
Published: July 2022

يعرف البناء الجاهز انه نوع من المباني الذي يتكون من عدة عناصر أو وحدات منمطة تهيئ في المصانع بصورة مسبقة والتي يتم تجميعها في الموقع. وان مصطلح (مسبق الصنع) هو مصطلح يشير إلى إن عناصر البناء الجاهز تصنع في ورشة العمل أو في المصنع، وبعد ذلك يتم تجميعها مع عناصر أخرى.

     يهدف هذا البحث إلى تناول التجربة العراقية في البناء الجاهز اذ تم تنفيذ عدد من البنايات الجاهزة وفق هذا النظام واستحدثت معامل لهذا الغرض في بغداد والمحافظات.

     وتتلخص مشكلة البحث الحالي في وجود القصور المعرفي تجاه البناء الجاهز باعتباره نظاما بنائيا مساندا للأنظمة الموجودة. وافترض البحث بأن هناك تأثير بين تصميم قطع البناء الجاهز وسرعة انجازها حسب مرونة تصميمها وشكلها الخارجي. وكانت المادة التطبيقية للبحث هي  دراسة كفاءة ألاداء للبناء الجاهز في بناية كلية الهندسة- قسم الهندسة المدنية في جامعة تكريت حيث نفذت بهذا الأسلوب وقيمت إيجابا وسلبا من حيث الخواص الإنشائي والأبعاد المعتمدة وخصائص الفضاءات  المستخدمة فيها عن طريق توزيع استمارات الاستبيان و جمع البيانات عن طريق عينة عشوائية شملت المشاركين في تنفيذ الأبنية ومستخدمي الأبنية وتم تحليل النتائج وفق برامج إحصائية .

     والأبعاد المعتمدة وخصائص الفضاءات  المستخدمة فيها عن طريق توزيع استمارات الاستبيان و جمع البيانات عن طريق عينة عشوائية شملت المشاركين في تنفيذ الأبنية ومستخدمي الأبنية وتم تحليل النتائج وفق برامج إحصائية .
استخدام برنامج Matlab/Simulink في دراسة طرائق السيطرة على سرعة محركات التيار المستمر
Authors: تحسين علي ياسين
Published: July 2022

يهدف البحث الحالي إلى استخدام برنامج ( Matlab / Simulink ) في دراسة طرائق السيطرة على سرعة محركات التيار المستمر وذلك من خلال التحكم بقيمة ( مقاومة المجال , فولتية المنتج , مقاومة المنتج ) من أجل الحصول على خصائصها نظريا ، ثم مقارنتها بالخصائص العملية التي تم الحصول عليها من خلال الاختبارات التي أجريت للمحركات لاحقا لغرض تعزيز مصداقية نتائج المحاكاة . وفي نهاية البحث تم إجراء استبيانين أحدهما للطلبة كفئة منتفعة والآخر للخبراء بهدف التقويم والوقوف على مدى تحقيق البحث لأهدافه.
EVALUATION OF FIRE ENDURANCE OF SELF COMPACTED CONCRETE SLAB REINFORCED WITH STEEL FIBER REINFORCEMENT AND STEEL BARS
Authors: Zena Waleed Abass
Published: July 2022

The effect of steel fiber on the deflection of self- compacted slabs under fire (6000c) was investigated in this study. Three specimens were tested experimentally and numerically ( by using sophisticated finite element programme ANSYS 7.0) to determine the deflection of these specimens under two point load after burned under  (6000c) in a tested furnace for four hours. Numerical study by using ANSYS programme is performed to calculate the critical temperature and the  temperature through the  slabs with steel fiber content of (0%,0.2%, and 0.5%). Another six model slabs with steel fiber content of (0.5%) were studied numerically by using ANSYS 7.0 to investigate the effect of arrange of parameters on the fire performance of self- compacted steel fiber reinforced concrete slabs. The main factors that influence the fire resistance of self- compacted steel fiber reinforced concrete slabs are: slab thickness, concrete cover thickness , moisture content. The  experimental results showed that the deflection of burned slab with steel fiber of (0.2%) decreased to 30% than the deflection of burned slab without steel fiber under the same failure load. While the deflection of burned slab with steel fiber of (0.5%) decreased to 50% than the deflection of burned slab without steel fiber under the same failure load. On the other hand , the deflection results were checked with finite elements method by using sophisticated finite element programme (ANSYS 7.0) and it was found that the results were acceptable and the difference was not more than 9%. The results from thermal analysis showed that the temperature decrease with the increase in the concrete depth of the self compacted steel fiber reinforced concrete slabs, while the critical  temperature  for the slabs with steel fiber of (0%,0.2%,0.5%) were (2500c, 3500c, 5800c) respectively. Parametric study results showed that  the slab thickness dose not have significant effect on the fire resistance of the self compacted steel fiber reinforced concrete slabs, while concrete cover thickness has a significant effect on the fire resistance of the self compacted steel fiber reinforced concrete slabs. Fire resistance increases with an increase in the moisture content of the concrete in the slabs.
A STUDY FOR CONVERSION OF MECHANICAL CONTROL SYSTEM TO ELECTRICAL CONTROL SYSTEM
Authors: Ali Fahad Fahem
Published: July 2022

This paper study the conversion  of the mechannical control system to electrical control system for the softdrink machine which use gears as timers in the process of counting the number of the bottles and in the process of  controlling the level of the softdrink in the bottle. The electricl control system use  electronical components such as integrate circuits (counters , timers , LCD display ) , using the counter to count the number of the bottles  with the use of the photosensor ( in our paper counting every four bottles )and adjusting the level of the fluid by one of the following methods. The first method of controling the level of the  liquid is by the timer which is fixed at time which is required to fill the bottle to the adequate level and it is adjustable according to the volume of the bottle. The  Second method for conteroling the level of the liquid is the ultrasonic device which use the ultrasonic sensor  to control the level of the fluid and it is adjustable according to the distance between the sensor and the bottle. The results of the electrical and mechanical models achived the satisfication results
NUMERICAL PROCEDURE TO DESIGN A DIE AND STUDY ITS RELATIONSHIP WITH SOME PARAMETERS INFLUENCING ON THE BENDING PROCESS OF SHELLS
Authors: Sami Ali Nawi ALazzawi
Published: July 2022

In this study a numerical procedure was proposed for the design a die bending to study the effect of springback which influences the bending process and its relationship with other parameters such as friction coefficient, bending load, die geometry, sheet thickness, Young modules, and stress level. Using available finite element program code( ANSYS .11) 3- Dimension ax symmetric model of semi conical shells was used to solve problems with material and geometric nonlinearities including large elastic- plastic strains and obeying bilinear isotropic hardening law. The result compared with analytical solution and showed that the best bending variables for producing completely product without failure are found as initial bending force = 12 KN, coefficient of friction = 0.1, the cone angle = 30 deg. So the springback increases inversely with young modulus and  is normally compensated for by over bending the part also can bend at elevated temps to minimize springback A high value of stress and strain appears to be a good indicator to assess whether forming operation will be successful or not. The theories results were compared with Numerical solution and showed that a good agreement was compared with old research
EFFECT OF TEMPERATURE ON LUBRICATING OIL AND POLY(METHYL METHACRYLATE) ADDITIVE
Authors: Mohammed Faiq Mohammed
Published: July 2022

This paper presents the evaluation of Poly(Methyl Methacrylate) or PMMA additive used in Iraqi lubricating oils to improve the characteristics of gasoline engine lubricants. Primarily, the viscosity with viscosity index improvement, represent the indicators for the evaluation of this type of additives under the influence of engine temperature.

            The lubricants used in this work, after manual addition of PMMA, were prepared by mixing the Iraqi base oils of grades 150H & 60H (equal amounts of each type) with percentages 100%, 90%, 80%, and 75%, respectively. These prepared mixtures of lubricating oils – additives were operated 4 hrs in engine of type "air cooled, 4-stroke, single cylinder, gasoline engine 3kw". The tests, were conducted for lubricant temperature during engine running, oil viscosity, viscosity index, and weight of debris (not analytic), on each sample of prepared lubricants.

The results confirmed that the most suitable lubricating oil for gasoline engine; either in summer or winter; was the mixture of 25% PMMA with 75% mixed base oil, with difference percentage not exceeds more than 6% between these two seasons, since it has lower increment of viscosity and lower VI decrease, with the presence of low amount of the debris (weight percent). This debris can indicate damages to the engine components, for long time engine operation. Finally, the benefits involved that the PMMA was low affected with the increase of engine temperature, according to its bounded properties.
تقييم بناية متعددة الطوابق مشيدة من الخرسانة المسلحة في جامعة ديالى بفحص سرعة الموجات فوق الصوتية وفحص مطرقة الارتداد
Authors: Zakaria Waad
Published: July 2022

أن البحث المقدم يبين تقيم دراسة واقعية لبناية متعددة الطوابق مشيدة من الخرسانة المسلحة في جامعة ديالى بفحص سرعة الموجات فوق الصوتية وفحص المطرقة ومن خلال النتائج المستخلصة من الفحص(والتي شملت 14 عمود و14 نقطة وبمعدل ثلاثة قراءات لكل نقطة من الهيكل الإنشائي للبناية لفحص الموجات ومعدل عشرة قراءات لفحص المطرقة)والتي يمكن اعتمادها في التقييم وجد بان سرعة الأمواج تراوحت مابين (3.4-5.0 كم\ثا) وفحص المطرقة تراوحت مابين (20-33).تم التقييم من خلال مقارنة ثلاث معادلات وهي (معادلة  د.السامرائي وجماعته رقم  (1) ومعادلة د.روف وجماعته  رقم  (2) ومعادلة د.عصام وجماعته  رقم (3) ). ومن خلال المقارنة والتقييم للنتائج أعطت معادلة رقم (1)  معدل زيادة في مقاومة الانضغاط كحد اعلى (    20.7%   ) . مقارنه بالمعادلة رقم (3) وكذلك معادلة رقم (2) أعطت معدل زيادة في مقاومة الانضغاط  كحد اعلى بمقدار  (14.6 %) مقارنه بالمعادلة رقم (3) . وبذلك لايمكن استخدام  معادلة واحدة في التقيم ,وانما تستخدم اكثر من معادلة واخذ معدلها , لاعطاء نتائج مرضية لمعرفة صلاحية المنشأ الخرساني.
EFFECT OF SUPERPLASTICIZER DOSAGE ON WORKABILITY OF SELF COMPACT CONCRETE
Authors: Ali Hussein Hameed
Published: July 2022

Self-compacting concrete has an enhanced ability to flow. It is known to result in an increased segregation and bleeding potential. This paper discusses the results of an experimental investigation into the properties of  self-compacting concrete mixes having varying dosage of high-performance superplasticizer (Glenium 51) (0.5%-3.0%) L per 100 kg of cement material. The properties investigated are workability on the fresh state of concrete by using one mix with five superplasticizer dosage  (0.5%,1.0%,1.5%,2.5% and 3.0%) is used. The workability was assessed using three tests  according to the specification of self compacted concrete (slump flow ,L- box differential height and V-funnel tests. The three dosage (1.0%,1.5% and 2.5%) comply with requirement for production of SCC while 0.5% and 3.0% don’t comply with specification requirement .Dosage of superplasticizer need to produce self compacted concrete range between (1.0%-2.5%) L/100 kg of cement according to the condition and material used in this paper
تقييم إدارة الجودة لمشاريع جامعة ديالى باستخدام تقنية التقييم النسبية المتعددة المعايير المعقدة COPRAS))
Authors: Naji Hafiz
Published: July 2022

ان المنافسة الكبيرة بين الشركات في سوق الانشاء تمثل تحديا لها في تسويق اعمالها ومنتجاتها ،لذا بدات هذه الشركات بالبحث عن احسن المواهب مستعملة افضل الادوات الادارية والوسائل الجديدة للرد على هذا التحدي ، وتمثل ادارة الجودة واحدة من هذه الادوات الادارية في الصناعة الانشائية .

      يهدف هذا البحث الى ابراز اهمية الجودة، وكيف يمكن توظيف اسس تقنية COPRAS))  في تقييم ادارة الجودة لمشاريع جامعة ديالى من خلال تحديد المعايير المستخدمة لتحديد المشروع الأمثل من ناحية ادارة الجودة ، وكذلك تحديد قائمة بمشاريع جامعة ديالى لكي نختار الامثل منها .ولغرض تحقيق هدف البحث ، فقد تم جمع البيانات الخاصة به من الادبيات التي تناولت موضوعي ادارة الجودة وطريقة التقييم النسبية المتعددة المعايير المعقدة ، واخيرا من المقابلات الشخصية من ذوي الاختصاص من المصممين والمنفذين والمشغلين لهذه المشاريع .

أظهرت نتائج تحليل البيانات لافراد العينة ومن ثم طريقة ترتيب النظام الوسطية(ROC) والمميزة في تطبيقها ان معايير التصميم ، السيطرة على الكلفة والتغييرات في العمل ، مراجعة العقود ،و السيطرة على وظائف المشروع هي اكثر المعايير اهمية لاجراء المقارنات الثنائية بين المشاريع ، وان معياري التصميم ، والسيطرة على الكلفة والتغييرات في العمل هي اكثر اهمية من بقية المعايير في المشاريع . واخيرا ،ومن خلال حساب الاهمية النسبية للمشاريع واولويات البدائل ودرجة المنفعة لها نجد ان مشروع النادي الطلابي قد حصل على النصيب الاكبر من المنفعة والاهمية بالمقارنة مع المشاريع الاخرى . وفي النهاية تم التوصل الى مجموعة من الاستنتاجات والتوصيات لمختلف جوانب الموضوع من بينها ، الإسراع في تطبيق تقنيات اتخاذ القرار المتعدد المعايير في تقييم المشاريع إضافة الى الإسراع في تطبيق النظم المقترحة من قبل الباحثين لإدارة الجودة لمساعدة المهندسين على التطبيق الامثل لهذه الادارة .
DINAMIKA KEBIJAKAN PROGRAM PENGEMBANGAN PERTANIAN DI INDONESIA
Authors: Febrianto Syam
Published: July 2022

This article will look at the dynamics of agricultural development program policies in Indonesia. By taking studies on agricultural sector development policies, such as soybeans. Using a public policy approach with incremental analysis and cost analysis. The article attempts to capture a portrait of the dynamics of agricultural sector policies, especially in the aspect of commodity prices that experience fluctuations. Using qualitative methods, relying on secondary data sourced from various official reports that have been issued by the government and private institutions that have credibility. The main argument of the article, sees that the extent to which development policies in the agricultural sector have shown a positive trend. Although for certain parts there are still many shortcomings. Political support is very much needed to create public agricultural policies that are pro-sector development
The Role of Sharia Fintech Based on Maqashid Sharia Perspective
Authors: Widiastuty Tri
Published: July 2022

In recent years, both conventional and Islamic financial technology (fintech) have begun to develop. Although the number of Shariah fintech is not as many as the conventional one, its presence should be taken into account. As this fintech service develops, there are also many risks and challenges faced in its practice. Therefore, the researcher is interested in raising the topic of Shariah fintech, which is associated with the maqashid al-shariah perspective. The objective of this study is to determine the development of Shariah fintech in Indonesia from its emergence to the present, to determine the role of Shariah fintech in the perspective of maqashid al-shariah, and to determine obstacles in the development of Shariah fintech. The research method used in this study is descriptive analysis method with a qualitative approach. The researcher performed a literature study to collect data from various sources that support the researcher’s chosen topic, i.e., Shariah fintech associated with maqashid al-shariah. In general, Shariah fintech has fulfilled the principles of maqashid al-shariah. However, there are elements that need to be more strengthened. An example is the need for a governing regulation that separates Shariah fintech from conventional fintech regulation. This is because there are very different crucial elements and principles between these two types of fintech.
Aktivitas Magang Lembaga Keuangan Syariah dan Proyek Kemanusiaan dalam Kurikulum Merdeka Belajar Kampus Merdeka
Authors: Makhrus M , Mukarromah Safitri , Istianah Istianah , Utami Restu Frida
Published: July 2022

The purpose of this study is to examine internship activities in Islamic financial institutions and humanitarian projects in improving the competence of graduates who have power in the world of work. This type of research is field research with research partners Bank Muamalat Purwokerto, KSU BMT Dana Mentari Purwokerto, and LAZISMU Banyumas Regency, while the data collection techniques are through observation, questionnaires, and interviews. This study indicates that the activities in the Independent Learning Campus (MBKM) curriculum of the Islamic Economics Law Study Program, Muhammadiyah University of Purwokerto have been going well and have had a positive impact on students and partners. Internships for Islamic financial institutions and humanitarian projects provide students with skills and competencies regarding product selling, product knowledge, communication skills, and humanitarian volunteer. Based on the evaluation results, students who take part in these two activities can increase motivation, skills, and behaviors that can affect future career plans (work) because they are in the world of work. In connection with efforts to increase graduate competence, it is carried out by increasing soft skills, namely by comprehensively understanding the entire series of internship activities for Islamic financial institutions and humanitarian projects, especially student activities that have met partner expectations, namely being diligent, communicative, active, and having competencies that are by partner needs.
PENERAPAN MODEL PEMBELAJARAN MEMORI UNTUK MENINGKATKAN DAYA INGAT PESERTA DIDIK
Authors: Jusriana Andi
Published: July 2022

Penelitian ini bertujuan untuk mendeskripsikan adakah ketidaksamaan kemampuan daya ingat peserta didik yang diajar dan tidak diajar menggunakan model pembelajaran memori di kelas X MIA SMAN 2 Sinjai. Desain penelitian yang digunakan adalah the matching only posttes only control group design dengan dua kelas yaitu satu kelas eksperimen dan satu kelas pembanding. Kemampuan mengingat peserta didik diukur menggunakan tes kemampuan mengingat yang telah divalidasi oleh dua orang validator setelah penerapan masing-masing model. Hasil penelitian deskriptif menunjukkan bahwa nilai rata-rata kemampuan mengingat peserta didik yang diajar menggunakan model pembelajaran memori sebesar 78,4 berada pada kategori tinggi dengan persentase sebesar 54,5%. Pada kelas pembanding diperoleh nilai rata-rata sebesar 70,2 berada pada kategori sedang dengan persentase 40,9%. Selanjutnya, berdasarkan hasil analisis statistik untuk kemampuan mengingat peserta didik menunjukkan bahwa model pembelajaran memori dapat meningkatkan kemampuan daya ingat peserta didik pada kelas X MIA SMA Negeri 2 Sinjai. Implikasi pada penelitian ini adalah hasil penelitian ini menunjukkan bahwa penerapan model pembelajaran memori mampu meningkatkan kemampuan daya ingat peserta didik dan bagi peneliti selanjutnya, hasil penelitian ini dapat dijadikan sebagai bahan perbandingan dan rujukan untuk mencari model pembelajaran lain yang dapat meningkatkan kemampuan daya ingat peserta didik.
PENCEGAHAN FRAUD DALAM PERSPEKTIF METAFORA AMANAH
Authors: Syamsuddin Syam Syamsuddin Syam , Purwanto Wahyudi
Published: July 2022

Penelitian ini bertujuan untuk menganalisa upaya pencegahan fraud dalan perspektif metafora amanah. Tinjauan literatur terhadap berbagai jenis kecurangan. Penelitian ini dilakukan dengan membandingkan antara pencegahan fraud secara umum dan pencegahan yang dilihat dari prespektif amanah dengan harapan untuk menjadi upaya untuk dalam meminimalisir kecurangan yang terjadi. Meskipun dalam hal ini lembaga yang manaungi memiliki niat yang mulia namun masih terdapat unsur penipuan dikarenakan manajemen yang tidak sistematis, kurangnya tata kelola lembaga, perilaku tidak etis dan kurangnya pegetahuan merupakan faktor utama yang dapat mempengaruhi terjadinya kecurangan. Hasil penelitian mengungkapkan Dengan adanya sifat amanah dalam diri seseorang maka kecurangan akan tidak terjadi, karena adanya sifat kejujuran, tanggung jawab yang di berikan oleh atasan Untuk menjalankan tugas dengan baik. Penelitian ini mengungkapkan bahwa jika kecurangan terjadi maka akan menyebabkkan perampasan hak, pemborosan, inefisiensi dan merajalelanya kejahatan kerah putih. Oleh karena itu, penelitian ini memberikan beberapa cara dalam meminimalkan kecurangan. Islam mendorong untuk menerapkan etika dalam setiap transaksi. Dan melalui alqur’an dan hadis bisa menjadi bagian dari umat muslim untuk bisa menghindari terjadinya kecurangan.
Purwoceng nanosuspension repairs spatial white albino wistar strains’ spatial memory degeneration after sleep deprivation
Authors: Wardana Rangga Wisnu , Suhesti Tuti Sri , Arjadi Fitranto
Published: July 2022

Paradoxical Sleep Deprivation (PSD) induces oxidative stress and interferes permanent memory consolidation in hippocampus. Purwoceng (Pimpinella prutjan Molken) is herbal medicine with antioxidant effect. These effects will be more effective with nanosuspension technology. The research purposes is to find effect of PSD to rats’ spatial memory reduction and to find purwoceng nanosuspension extract effect to improve rats’ spatial memory after PSD stress induction.  The research method is randomized controlled trial with posttest only with control group approach to 36 white male albino rats Wistar strain which is induced by 96 hours PSD stress model. Experiment groups is regular extract 25 mg/300g BW/day, purwoceng nanosuspension extract 25 mg/300 gBW/day, 50 mg/300 gBW/day, and 75 mg/300 gBW/day. Statistical analysis found that there is no significant effect of purwoceng extract to memory traveling time (p=0,414) and memory track length (p=0,316) between pre-PSD and post-PSD group. There is significant effect of PSD stress after purwoceng administration to memory track length and memory travelling time (p=0,005). The conclusion is that there is significant correlation between the difference of memory latency and memory traveling time of MWM test between the various purwoceng nanoemulsion dose. The 25-50 mg/300 gBW/day is effective dose of purwoceng nanoemulsion extract to repairs spatial memory degeneration after PSD stress.
The overlapping of COVID-19 with Mucormycosis: A systematic review
Authors: Sarhan Abdulridha Taha
Published: July 2022

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