bluuebunny/crossref_metadata_2025 huggingface dataset:
ASSESSMENT OF PHENOL DERIVATIVES IN COOLING TOWER SYSTEM AS BIOCIDES
Authors: Hussain Muslet Sh. , Reshan Shaimaa.A.Ahmed , Dhaidan Samar K.
Published: March 2024

One of the major problems facing the industrial utilities especially cooling towers is biofouling. Many techniques and measures have been taken and still continuing researches are under way. Biocides and water qualities were the main area of research for evaluation. Friendly biocides are preferable for controlling viable count and fungi, but many harmful still in use.The main objective of this research work is to predict a relationship covering the concentration of Cl and Br – containing compounds as biocide and the performance.It was concluded that the chlorophenol is the major effective biocide used (reduce it for about 80%, while bromophenol to about 65%) and that material although they are highly approved, but suffer pitting corrosion.
The Space in the Age of Information
Authors: العلوان هدى عبد الصاحب , عبود نورا نعيم
Published: March 2024

Three revolutions characterize the age of information: Information Revolution,Technology Revolution and Media Revolution. These revolutions developed and interacted with each other in an amazing way. Way to an extent that it becomes a title to our contemporary architecture. These revolutions changed people‟s thoughts, behaviors, and traditions. The effect of technology on the urban structure generally and the urban space specifically changed the physical structure of these spaces as a necessary result to the change of intellectual structure in community. The information revolution changed a lot of the common urban space„s characteristics and concepts as well as an extreme change in concepts related to the space.The new thought concentrated on the fact that information represents the tools for the interaction between man and his environment. The new electronic information and the improved digital media split the reality out of the realm of body, convert the experiments to the form of event and create a control of the virtual reality. The new space of this kind is called “Virtual Space”. This new space lies between the physical space and the mental space as it presents to the designers not only infinity image to the mental space but the sense of being in the physical space. The physicality of space is no more an important concept in architecture as a result to the emergence of new concepts of space with the effect of information technology. The new digital tools (computers) set free the dual concepts of space in human civilizations. The power of structure and the imitation of the digital media released all types of unlimited imagination.The research aims to explain the concept of (space) in the language of today (the technological language) and clarify the meaning of intelligent space as a result of the change in the concept of space in the age of Informational Technology Revolution .
RELIABILITY-BASED DESIGN PROCEDURE OF AXIALLY LOADED PILES
Authors: Fattah Mohammed Yousif
Published: March 2024

Geotechnical engineering involves many different and complex materials and many different mechanisms of behaviour. The direct use of experience as a guide to the prediction and design is effective provided these are understood. Geotechnical engineering is a relatively new science. Its successful application to prediction requires realistic assumptions to be made, and predictions must be tested against reality. Methods of prediction need then to be refined. An example of the importance of making realistic assumptions is examined in this paper. It includes the effects of soil properties on the ultimate capacity of axially loaded piles.Better analysis offers better prediction and better understanding. Both are only possible when reality is modelled. There are occasions when mechanisms are too complex for predictive analysis. Prediction must then be based directly on experience, applied with an understanding of the mechanisms involved. Moreover, methods of analysis may become too sophisticated for everyday use. However, pseudo-analysis, involving standardized methods based on oversimplified and unrealistic mechanisms of behaviour and material properties, is dangerous. The use of engineering experience as a guide to prediction and design may offer a more effective alternative, provided it is based on a realistic understanding of mechanisms and materials.In this paper, a procedure is recommended to estimate the bearing capacity of axially loaded piles based on reliability calculations. The procedure is an extension of the point estimate method in which the expected values of the standard deviation of the capacity and demand functions are calculated. The probability of failure, the reliability, central factor of safety and reliability index are calculated as appropriate. The procedure is then applied to two cases where the pile in the first case is driven in sand while in the second, it is driven in clay.
NUMERICAL ANALYSIS OF THIN BEAMS RESTING ON NONLINEAR ELASTIC FOUNDATIONS
Authors: Al-Azzawi Adel A.
Published: March 2024

The finite difference method is used for solving the basic differential equation for the elastic deformation of a thin beam supported on a nonlinear elastic foundation. A tangent approach is used to determine the modulus of subgrade reaction after constructing a second degree equation for load-deflection diagram. Results of plate loading test of soil obtained in Iraq were used in the analysis. An iterative approach is used for solving the nonlinear problem until the convergence of the solution. The method of analysis, as programmed for a computer solution, considers the continuous elastic, nonlinear foundation to be active only when the beam is pressing against the foundation. Two examples of with simply supported beams are presented to illustrate the application of the method of analysis.
EFFECT OF USING IRON SLAG ON FOUNDRY- MOLDING MIXTURE PROPERTIES
Authors: محمد خضير جاسم
Published: March 2024

This work deals with slags produced from melting processes of cast iron and steel .as an industrial solid by product with investiga effect environment in general .Huge quantities of slag are produced from foundries and steel work complexes , as (10-30)% of iron alloys produced .In order to use those quantities at the same foundries , this work investigates the using of slag in sand moulding mixtures 10,20,30 and 40 % of milled slag to the same size of silica sand , instead of silica , and prepared standard speciemens to test grean compression strength and gas permeability in green and dry cases.Results showed improvement in comp.strength in green tests, by using slag. While in dry tests, however, that comp. strength increased by using slag.But we couldn´t break dry speciemens to have given results over 10% slag because their values were over the rang of tester (6.5kg/cm²) . Accordingly we can state that slag can be used in moulding mixture at the same foundries to improve properties and to get rid from its pollution effect and transport costs.Rejects recycling is the best way to save environment -
SUSTAINABLE HOUSE BETWEEN ENVIRONMENT DETERMINERS AND DESIGN CONSIDERATIONS
Authors: خروفة عمر حازم
Published: March 2024

The aim of sustainability represents one of the most important aims that most architects sought for achieving it. Thus, the economical factor appears to have the priority within the set of factors leading to this aim, where the effect of this factor appears much clearly in housing projects in comparison to other types of buildings. Therefore, many attempts and experiments were adopted in the field of economical low cost housing in different places of world. These attempts were associated with many aspects concerning the subject of achieving the possible economy of house of all levels. In spite of the numerous attempts that were adopted on the local level for putting general lines for the economical housing directions; the results were not in the desired level especially if we look at the subject within the determiners of local environment and their hard climatic considerations. This research deals with the conditions of sustainable house within two pivots; the first is environmental that looks after the conditions of local environment and the second is constructive where it is related to determine the modes, devices and constructional material. The second pivot represents the considerations concerning the design regarding the methods and devices of construction. Thus, the two pivots together throughout their subdividing give important stages for achieving the aim of sustainability of house. The research depends on the analytical descriptive technique for several economical executive housing samples in different places of world and gives and evaluation of the possibility of getting benefit of them locally.
ANTISEIZURE CHARACTERISTICS OF LEADED ALUMINUM ALLOYS UNDER DRY SLIDING CONDITIONS
Authors: Subhi Akeel D.
Published: March 2024

Aluminum-Silicon alloys, with soft lubricant metal, are considered to be one of the important tribological alloys which resist seizure. The effect of different lead percentages (1-20%Pb) that added to the modified eutectic Al-12%Si alloy on the wear rate and resistance was studied by sliding these alloys under dry sliding conditions on a carbon steel disc at different sliding distances (2.24-40.37 km). The results showed that the wear rate was decreased and wear resistance increased with increasing lead percentage of Al-12%Si alloy. Furthermore, wear rate was increased linearly with increasing sliding distance.
COUPLED VERTICAL – TORSIONAL AND LATERAL FREE VIBRATION OF THIN-WALLED CURVED BEAM
Authors: Al Khazraji Shatha Dhia
Published: March 2024

This study is concerned with the derivation of differential equation of motion for the free coupled vertical – torsional and lateral vibration of opened thin-walled curved beams. The curved beam to be considered in this study is of isotropic opened thin – walled (I) section with equal top and bottom flanges. The derivation depends on Hamilton's principle which required finding the potential and kinetic energy of the curved beam section due to internal stresses and all types of movements (Vertical,Torsional and Lateral) .The effect of restrained warping displacement is also considered in this study. Three differential equations are derived for vertical, torsional and lateral movement .and approximate solutions are developed by using the method of multiple scale via a perturbation technique. The resulting natural frequencies and modes for vertical , torsional and lateral movements are compared with those calculated by using finite element approach ( STAAD Pro. 2007 ) and with the results other studies.
SEISMIC DESIGN OF SINGLE SPAN STEEL GIRDER BRIDGES AND BRIDGES IN SEISMIC PERFORMANCE CATEGORY A
Authors: Said Abdul Muttalib I. , Edaan Esraa Mubder
Published: March 2024

This paper studies the validity and accuracy of the seismic design force recommended by AASHTO for single span bridges. A parametric study for single steel girder bridges is presented, included the effect of span length and elastomeric bearing and lateral bracing (cross-frame) stiffness. The results of simplified AASHTO method are compared with response spectrum and time history analysis. Also studying the seismic design reqiurements for continuous steel girder bridges in seismic performance category (A), included the effect of span length, seismic zone, effect of elastomeric bearing and cross-frame stiffness and bridge skew on their seismic responses. It is concluded that the AASHTO simplified analysis method for single span bridges underestimates the seismically induced forces at supports and the proposed seismic design force of (2.5 multiplied by acceleration coefficient multiplied by tributary weight w(x)) has been recommended for single span bridges for seismic zone 3 and 4 and for soil type II. Also it is observed that the seismic design force for two span continuous bridges in performance category A is safe and conservative method to predict the shear forces transferred by connection elements to the substructures.
AN INTEGRATIVE OF BUILDING’S WORK AS AN EMPLOYED SYSTEMATIC OF THE HIGH TECHNOLOGY IN FACE THE EXTERNALCLIMATIC CONDITIONS
Authors: كمونة غادة محمد اسماعيل , رفو لينور سعد يوسف
Published: March 2024

يعتمد جزء من تطور المجتمعات على مدى قدرتها وقابليتها على التلاؤم مع التغيرات اللازمة والمستمرة لتطوير استجابتها مع البيئة المناخيةالمحيطة بها، وقد كان للتطور التكنولوجي الأثر المباشر على هذا المفهوم وأهمية توجيهه بالإتجاه الصحيح لأبنيتنا وبصورة تتواءم مع المتغيراتالمناخية المحلية.ونظرًا لقلة الدراسات التي تركز على أهمية تكاملية البيئة المناخية مع التكنولوجيا المعاصرة وبما ينسجم مع الواقع المحلي المحيط بهاإرتأى البحث دراسة أهمية توظيف التكنولوجيا المعاصرة في انشاء أبنية تمتاز أغلفتها بديناميكية عالية مستجيب ً ة للظروف المناخية المحيطة بها،مطوع ً ة تصميمها العام شك ً لا ووظيف ً ة لتعمل ككل متكامل لتوفير الراحة لشاغليها وبأسلوب يحفظ الطاقة ويوفرها، الأمر الذي يفضي الى إنتاجمباني صديقة للبيئة تتمتع بالقدرة والقابلية والكفاءة على مواجهة الظروف المناخية ومنتمي ً ة لواقعها المحلي، مستفيدًة من مواردها وطاقاتهاالمتجددة بما ينعكس إيجابًا على تحسين البيئة الداخلية لهذه المباني.وقد تعرض البحث لتجارب عربية وعالمية في هذا المجال بغية استخلاص تلك الأفكار وتوظيفها في المباني العراقية وبما ينسجم معمناخنا المحلي الحار – الجاف وذلك لمواكبة التطور التكنولوجي العالمي ومن ثم إيجاد مباني كفوءة طاقويًا تسهم في المحافظة على مواردالعراق.
BEHAVIOUR OF FIRE EXPOSED REINFORCED CONCRETE COLUMNS
Authors: Fawzi Nada M. , Essa Mahdi S. , Kadhum Mohammed M.
Published: March 2024

This research is devoted to investigate the behaviour and load carrying capacity of reinforcedconcrete columns exposed to fire flame. The experimental program consisted of casting and testing of 128 column specimens divided into two series A and B with target compressive strength (30 and 40 MPa) and named series A and B respectively. Each series was divided into three main groups loaded eccentrically with eccentricities 30mm and 80mm. It was found that the predicted load carrying capacity of reinforced concrete columns by three codes (ACI-318/08, BS-8110/97 and Canadian/84), was unconservative after burning. The BS Code equation was found to predict load capacity after exposure to high fire temperature levels better than other codes. Load-deflection curves indicate deleterious response to the fire exposure. Also, it was noticed that the maximum crack width increases with increasing fire temperature and amount of spacing between lateral steel ties.
Effect of Seismic Loading on Porewater Pressure in Clayey Soil under Disconnected Piles-Raft Foundation
Authors: Nafel Sajjad Riyadh , Karkush Mahdi Obaed
Published: March 2024

The disconnected piled raft foundation (DCPRF) is one of the newly introduced foundations for specialization in geotechnical engineering, which significantly reduces the moment and stress on the pile head. In addition, this type of foundation is an ideal choice in areas with seismic activity due to the presence of cushion material between the raft and the piles. This work aims to present a numerical model in PLAXIS 3D software for connected piled raft and disconnected piled raft foundations under the influence of seismic loads and investigate the effect of pore water pressure on the disconnected foundation compared to the connected foundation. The study will depend on the earthquake that struck Iraq in November 2017 in the Halabja region.  Strength was 7.3 on the Richter scale with PGA (0.1g). The results of changing pore water pressure showed the variation of pore water pressure. In the case of a DCPRF, the porewater pressure and excess porewater pressure in the soil are much greater than in the case of a CPRF. The increase in the porewater pressure is due to the weight of the building and the weight of the additional cushion layer on the soil. The mechanism for transferring the load in the case of a DCPRF is carried out by raft, then to the cushion, and then to the soil and piles. The load transferred to the soil in the case of DCPRF is more than that transferred to the soil in the CPRF system.
Studying and Assessing Surface Water Use of Shuwaija Marsh within Wasit Governorate-Iraq
Authors: Al-zubaidi Saif Ali , Abed Basim Sh.
Published: March 2024

This study aims to study and evaluate the surface water use of Al-Shuwaija marsh by estimating the maximum value of water flow and the volume of water revenues through the hydrological analysis of the characteristics of these marsh basins in addition to the physical analysis of the characteristics of the selected design storm. The hydrological model was created for the watersheds of the Al-Shuwaija marsh. Sixty simulations were conducted to model the Shuwaija marsh for different return periods and rainstorms, where the model was calibrated and then validated to predict the flow and volume of water using the (WMS) program. The SCS method was used to calculate the value of the total curve number (CN) based on the land use and soil type of Al-Shuwaija marsh basins, where its value was 80.84. It has been shown via modelling that a discharge may be achieved into 8298 /sec at a return period of 100 years and obtain a discharge of up to 1775 /sec at a return period of 2 years. Based on the expected amount of precipitation that would fill the selected reservoir, three scenarios were assumed each scenario representing the area of the reservoir and the volume of incoming water.
Measuring the effect of the effective medication in treating the behaviour of children with autism: historical aspects
Authors: Albasalah Aida , Alarnous Razan , Chakroun Ghazi , Alhifthy Elham , Al-Murab Munira Muhammad , Alshawwa Samar Zuhair , Alshawwa Shaban
Published: March 2024

The aim of this article is to evaluate the effect of medication in treating the behaviour of children with autism; historical efforts and proposals to assist parents of autistic children as well as necessary training to provide medical and therapeutic assistance to autistic children.
Three-dimensional mineral dendrites reveal a non-classical crystallization pathway
Authors: Hou Zhaoliang , Woś Dawid , Tschegg Cornelius , Rogowitz Anna , Rice Alexander Hugh , Nasdala Lutz , Fusseis Florian , Szymczak Piotr , Grasemann Bernhard
Published: March 2024

Manganese (Mn) dendrites are a common type of mineral dendrite that typically forms two-dimensional structures on rock surfaces. Three-dimensional (3D) Mn dendrites in rocks have rarely been reported, hence their growth implications have largely escaped attention. Here, we combine high-resolution X-ray and electron-based data with numerical modelling to give the first detailed description of natural 3D Mn dendrites (in clinoptilolite tuffs) and elucidate their growth dynamics. Our data show that 3D dendrite growth occurred by accretion of Mn oxide nanoparticles formed when Mn-bearing fluids mixed with oxygenated pore-water. The geometry of the resulting structures is sensitive to ion concentrations, the volume of infiltrating fluid, and the number of fluid pulses; thus 3D dendrites record the hydro-geochemical rock history.
The role of salt diapirism in controlling the sedimentology and distribution of deep-water deposits, Pierce Field, East Central Graben, North Sea
Authors: Abu Clara , Jackson Christopher
Published: March 2024

Passively rising diapirs control flank deformation (i.e., within 1 km of the salt-sediment interface) and resultant stratigraphic architecture of syn-kinematic units. Growth strata associated with deformation at the flanks of passive diapirs are known as halokinetic sequences. Very few studies have conducted an integrated analysis of composite halokinetic sequences, CHS (stacked halokinetic sequences), and the damage occurring in host rocks during salt diapirism using seismic, petrophysical well data and core information.This study integrates a 3D seismic reflection survey, core, and petrophysical data from the Pierce Field, northern North Sea, offshore UK to examine CHS in near-diapir strata and associated deformation. We recognize three tapered CHS in Units 6, 5, and 2. Two tabular CHS are recognized in Units 3 and 4, comprising the Miocene and Oligocene-aged sediments. The tapered CHS represents a rapid sediment-accumulation rate relative to the diapir-rise rate. The tabular CHS represents slow sediment accumulation rates relative to the diapir-rise rate.Regarding near-diapir deformation, we observe large-scale fracturing associated with drape folding in the Ekofisk Formation resulting from the North and South Pierce salt movement. In the clastic successions, bedding parallel slip zones and slump folds dominate the Forties Sandstone Member and signify a destabilizing and rotational relationship of the Forties sandstone with the growing salt diapirs. Hybrid and remobilized flows interpreted from core data and lateral thickness changes support our interpretation of diapiric salt adjustment of deep-water deposition. Our study demonstrates the value of using an integrated dataset: 3D seismic reflection data and core to characterize the dynamic interaction between sediment gravity-flows and diapiric salt with North and South Pierce diapirs controlling thickness and facies distributions in the North Sea Central Graben.
Traces of Guilt and a Hint of Reparation in Kyung-Sook Shin’s Please Look After Mother
Authors: Das Shruti , Adak Suman
Published: March 2024

Guilt arises with the realization of wrongdoing. Please Look After Mother by noted South Korean writer Kyung-Sook Shin is replete with repentance which finds perfect expression in the characters' memories. Like in most oriental societies family and emotional and physical relationships between family members are very important and the basis of stability. Failing to care for members of one’s family is considered sacrilege and looked down upon. Therefore, neglect of family results in guilt. In the novel, the mother goes missing from the Railway station and the other family members blame each other and themselves in high drama. The characters, not only exhibit guilt but also are aware of their own guilt. The narrative exposes the human psyche projecting how unconscious guilt often manifests itself if the stakes are as high as losing suddenly one’s mother and wife. The guilt emerges and the ‘feeling bad’ turns eventually into a creative expression of prayer. This paper is a psychoanalytic study of Please Look After Mother whereby the emotional bond in a family is explored. This paper aims to fill the need for a comprehensive psychoanalytic study when it comes to the guilt the characters feel while putting forth the idea of family as a bounded structure and its reparation from the novel itself.
India’s Role in Global Climate Change Management
Authors: Poonam Kanwal
Published: March 2024

Global Climate change refers to the long-term shifts that take place in temperature and weather conditions. These changes can occur on their own, due to variations in the solar cycle but the changes that are being referred to here are not natural they have been caused by anthropogenic activities. Green House Gases (GHGs) emissions have accumulated in the atmosphere, and they keep rising each year. It is important to limit the global temperature, otherwise, disruptions in the climatic system would create difficulties for human societies. The only way to limit rapid climate change is to decrease our collective emissions that demands global management, governance, and participation of all countries. Thus, the allocation of responsibilities for the mitigation of GHGs lies at the heart of climate change management. The main objective of this paper is to examine India’s contribution at the global level to the management of global climate change. This study used an analytical and normative approach with the qualitative research methods and secondary sources to address the research objectives. The study revealed that India has been instrumental in shaping the climate regime from the very beginning, it has played a key role in developing the normative framework of the climate regime, its principles, rules, and norms.

Keywords: Global, Climate Change Management, India
Unveiling the Impact of Project Governance on Performance of Public Sector Development Projects in Sri Lanka
Authors: G. R. M. Gamlath  , Y. Nanthagopan  , L. Kengatharan  , Nigel L.Williams
Published: March 2024

The governance of public sector development projects has become an increasingly complex theme in the diverse nature of managing stakeholders, structuring project formation and development, planning, monitoring, and surveillance, and their expectations. Thus, stakeholders’ interests should be addressed by the governments. The main objective of this research is to investigate project governance and its basics, for the application in the Sri Lankan public sector development projects to increase project performance in terms of public sector growth and sustainability. Funding agencies, policymakers, government regulators, and other associated partners attempt to support smooth project execution and accomplish the desired project outputs and outcomes by emphasizing the importance of project governance.The study conducts a literature review on project governance to bridge a knowledgegap in investigating the function of project governance and the efficiency of the Sri Lankan public sector development projects. It employs a qualitative research approach and reviews the related literature including scholarly journal articles. The findings indicate that project governance must be practiced achieving project objectives related to optimal economic and social benefits for the country's accelerative development plan and from the standpoint of the government, project governance and performance serve as cornerstones of a development plan. Finally, this study comprehensively examines the roles and practical implementation of project governance within Sri Lankan projects, providing invaluable insights and recommendations for enhancing project performance, fostering growth, and ensuring sustainability within the public sector.
Keywords: Development Projects, Performance, Project Governance, Public Sector, Sri Lanka
Role of Thermal Processing in Tailored Forming Technology for Manufacturing Multimaterial Components
Authors: Goldstein Robert , Behrens Bernd-Arno , Duran Deniz
Published: March 2024

The demand for lightweight, high performance components continues to grow in the transportation industry. However, the inevitable trade-off between strength, weight and cost is a limiting factor in design and implementation of many technologies. Load adapted tailored components with locally varying properties offer a potential solution to this problem. In sheet forming industry, use of tailored blanks has increased notably in the last two decades, whereas utilization of such concept is relatively new to bulk metal forming industry. The researchers have been exploring new possibilities for suitable process chains to manufacture massive hybrid components. The process chain involves manufacturing processes of joining, forming, heat treatment and machining. The interface characteristics between the two materials are decisive in the performance of the manufactured component. In this study, manufacturing of a bi-material shaft by tailored forming is covered. First of all, an overview of the tailored forming technology is given with an emphasis on the joining zone treatment by thermal and thermomechanical processing. In the following, a numerical and experimental analysis of induction heating of bi-material workpieces is presented.
Thermally Sprayed Ti3SiC2 and Ti2AlC MAX-Phase Coatings
Authors: Trache R. , Puschmann R. , Leyens C. , Berger L.-M. , Matthey B. , Herrmann M.
Published: March 2024

Compounds of the material group known as MAX phases combine metallic and ceramic properties. In this work, MAX-phase coatings are deposited from modified Ti3SiC2 and Ti2AlC commercial feedstock powders using HVOF and atmospheric plasma spraying (APS). Feedstock powders and coatings were studied by microscopy and XRD. Despite the use of unoptimized powders, well adhering and relatively dense coatings were produced. HVOF-sprayed layers had denser microstructures with higher amounts of MAX phases. Optimizing the shape and particle-size distribution of feedstock materials is expected to improve coating properties.
Examining 5th Grade Students' Learning on Surface Area Calculations with Realistic Mathematics Education Approach
Authors: ERTEM AKBAŞ Elif , YILDIRIM Lütfiye
Published: March 2024

The fact that the mathematics course is abstract, that it is not possible to associate it with daily life, and that it is impossible to concretize abstract expressions causes a prejudice against the this course and leads to a decrease in the academic achievements of students. It is seen that throughout history, various studies have been carried out taking this situation into consideration. A group of these studies is on realistic mathematics education. Realistic mathematics education is an approach that aims to concretize the abstract concepts of mathematics by relating them to real-life situations. The purpose is to make mathematics more understandable by concretizing it. In the study, the subject of calculating the surface area of prisms with the use of realistic mathematics education was taught, and the purpose of the study was to examine the effects of this application. The study group consisted of 20 5th grade students. While determining this group, maximum variety sampling strategy was preferred. In the study, action research, one of the qualitative research methods, was used, and the data were interpreted with the help of descriptive analysis and content analysis. The data collection tools in the study included semi-structured interview forms, video recordings, photos and activity sheets prepared by the students under the guidance of the researcher in accordance with the realistic mathematics education approach. When the findings were examined, it was seen that the students showed a positive development in the meaning and visualization processes; that they could reach mathematical inferences on their own; that they enjoyed the mathematics lesson; and that the realistic mathematics education approach gave positive results on learning. Based on these results, it was suggested that not only the application of the realistic mathematics education approach for different acquisitions but also the inclusion of these activities in the textbooks in accordance with the curriculum will result in improvements in favor of learning.
Features of the Operation of Anchor Plates for Fixing Windows under the Action of Wind Loads
Authors: KONSTANTINOV А.P. , AKSENOV I.S.
Published: March 2024

Numerical and laboratory studies have been carried out to study the static operation of anchor plates under the action of wind loads. Numerical studies of the operation of a standard anchor plate under the action of a compressive load acting perpendicular to the plane of the window have shown that its carrier is several times less than the force that occurs at the attachment points of window blocks when peak wind loads are applied to them. At the same time, the existing experience in the operation of window blocks shows that anchor plates in the vast majority of cases retain their bearing capacity throughout the entire working life of the window block. This indicates that the simplified design scheme of the anchor plate used in practice does not fully reflect its actual operation as part of the window structure. This statement was verified during laboratory tests of a window block with typical design fixed with anchor plates to a frame that simulates a window opening. It is established that the static operation of the anchor plate is significantly influenced by both the fastening of the window frame with mounting foam and the limitation of anchor plates deformations by window slopes. The issue of calculating anchor plates for the effect of wind loads should be considered by the professional community in order to develop both common approaches to the calculation of such fasteners and the fundamental possibility of their use for windows installation, especially in unique buildings.
Girl on the Move from Syria
Authors: Bakarian Meghri
Published: March 2024

Growing up in Aleppo, Syria, for the first twenty years of my life, I listened to my grandparents’ stories of their experiences and their survival of the Armenian Genocide (1915 to 1916) alongside the stories of my parents growing up as refugees in Syria. Approaching the 100th anniversary of the Genocide when I was 18, I did not ever expect to relive the suffering and challenges faced by my grandparents and parents let alone end up with the status of refugee. At the time of my graduation from high school, the war hit Syria. Everything that had been beautiful was annihilated or destroyed and happiness turned into profound suffering. In front of me was evidence of the terrible experiences that I had heard about only in the stories of my parents and grandparents. In addition to this, I saw my opportunity and my right to higher education vanish.
Imaging Endothelin ETB Receptors Using [18F]-BQ3020: In Vitro Characterization and Positron Emission Tomography (MicroPET)
Authors: Johnström Peter , Rudd James H. F. , Richards Hugh K. , Fryer Tim D. , Clark John C. , Weissberg Peter L. , Pickard John D. , Davenport Anthony P.
Published: March 2024

The endothelin (ET) receptor system has been shown to play a role in a number of vascular diseases. We have synthesized 18F-and 11C-labeled radioligands to enable in vivo imaging of the fundamental processes involved in ET receptor pharmacology in normal and diseased tissue using positron emission tomography (PET). One aim is to elucidate the proposed role of the ETB subtype as clearing receptor, removing ET-1 from the circulation, and whether this is an important mechanism to limit the detrimental effects caused by upregulated ET-1 in disease. To image ETB receptors we have labeled the selective agonist BQ3020 with 18F. In vitro characterization verified that [18F]-BQ3020 bound with a single subnanomolar affinity (KD == 0.34 ± 0.10 n M, Bmax == 9.23 ± 3.70 fmol/mg protein) to human left ventricle. Binding of [18F]-BQ3020 to human kidney was inhibited by ET-1 and unlabeled BQ3020 but not by the ETA selective antagonist FR139317, confirming that selectivity for the ETB receptor was retained. In vitro autoradiography revealed, as expected, high levels of ETB receptor densities in lung and kidney medulla, whereas kidney cortex and heart showed lower levels of ETB receptor densities. Furthermore, a high level of [18F]-BQ3020 binding was found to colocalize to macrophages in atherosclerotic coronary arteries. MicroPET studies demonstrated high uptake of [18F]-BQ3020 in ETB receptor–rich tissue, including lung, liver and kidney. The in vivo biodistribution of [18F]-BQ3020 was comparable to that previously obtained for [18F]-ET-1, supporting our hypothesis that the ETB receptor plays a significant role in the uptake of ET-1. In conclusion, [18F]-BQ3020 has retained high affinity and selectivity, allowing imaging of ETB receptor distributions in vitro and in vivo in human and animal tissue. Furthermore, in vitro data suggest that [18F]-BQ3020 potentially can be used to image atherosclerotic lesions in vivo using PET.
Protocols of data collection networks based on IEEE 802.15.4 radio channels in complexes for the protection of underground metal structures from electrochemical corrosion
Authors: Buhinnick A.
Published: March 2024

Radio communication systems in telemetry and telemechanics systems of active electrochemical protection of underground metal structures are considered. The requirements for radio exchange systems for data collection networks from remote control and measuring points of cathodic protection stations are formulated. The analysis of the applicability of known exchange protocols based on the specifications of the IEEE 802.15.4 standard and its software add-ons for such networks is carried out and the need for the development of specialized network and channel layer protocols is justified. The results of the development of specialized network protocols of the application, network and channel levels that implement data exchange modes required for the collection networks under consideration while minimizing energy consumption are presented.
Increasing the probability of transfer GMDSS broadcast messages when transmitted over HF channel in case fading
Authors: Egorov V. , Maslakov M.
Published: March 2024

Improving the quality of communication in the Global Maritime Distress and Safety System of navigation is one of the components of the development of the Arctic zone of the Russian Federation in terms of information support. At the same time, the most difficult is to ensure communication in the A3 and A4 areas, where a communication HF channel plays a not small role. The transfer of messages over HF channel in the broadcasting mode of SITOR-B is considered. To improve probabilistic characteristics in the work, a statistical analysis of the decisions of the demodulator is carried out. It is shown that the probability density functions are “noisy”, which is associated with the non-zero probability of a bit error. Models of Rayleigh, Rice and Nakagami distributions were used for statistical analysis. It is shown that in the case of low values of the signal-to-noise ratio, which is characteristic of high latitude tracks, a Nakagami model is preferable. The symbol error rate and message error rate in a fading communication channel, as well as the probability of receiving an erroneous message are shown. The results presented in this work can significantly improve the probabilistic characteristics of the HF radiolines when transmitting messages in SITOR-B mode.
Open Dataset for Testing of Visual SLAM Algorithms under Different Weather Conditions
Authors: Podtikhov A. , Saveliev A.
Published: March 2024

Existing datasets for testing SLAM algorithms in outdoor environments are not suitable for assessing the influence of weather conditions on localization accuracy. Obtaining a suitable dataset from the real world is difficult due to the long data collection period and the inability to exclude dynamic environmental factors. Artificially generated datasets make it possible to bypass the described limitations, but up to date, researchers have not identified testing SLAM algorithms under different weather conditions as a stand-alone task, despite the fact that it is one of the main aspects of the difference between outdoor and indoor environments. This work presents a new open dataset that consists of 36 sequences of robot movement in an urban environment or rough terrain, in the form of images from a stereo camera and the ground truth position of the robot, collected at a frequency of 30 Hz. Movement within one area occurs along a fixed route; the sequences are distinguished only by whether conditions, which can make it possible to correctly assess the influence of weather phenomena on the accuracy of localization.
STRUKTUR PERCAKAPAN SISWA DAN GURU DALAM PEMBELAJARAN BAHASA INDONESIA DI SMP PANCA JAYA SURABAYA
Authors: Ramadhani Dinda Ayu Putri Agti , Suhartono Suhartono , Yuniseffendri Yuniseffendri
Published: March 2024

Penelitian ini bertujuan untuk menjelaskan struktur dari percakapan siswa dengan guru di dalam pembelajaran Bahasa Indonesia di SMP Panca Jaya Surabaya. Penelitian ini menggunakan metode deskriptif kualitatif. Sumber data dalam penelitian ini melalui informan yaitu interaksi antara siswa dan guru yang dilaksanakan pada proses pembelajaran Bahasa Indonesia di SMP Panca Jaya Surabaya. Dalam mengumpulkan data, peneliti menggunakan teknik observasi dan dokumentasi interaksi guru dan siswa. Teknik uji keabsahan data yang digunakan adalah teknik uji kredibilitas. Penelitian ini menggunakan teknik analisis data berupa kegiatan reduksi data, display data, dan penarikan kesimpulan sebagai tahap verifikasi. Hasil dari penelitian ini menyatakan bahwa ditemukan lima struktur percakapan dalam kajian pragmatik, yaitu gilir wicara, jeda, overlaps, backchannel, dan pasangan ajesensi. Melalui proses analisis lima struktur tersebut membangun situasi keragu-raguan, persetujuan, keriuhan kelas, kefokusan, dan ketenangan kelas.
نموذج من معجم الأدب الفارسي
Authors: محفوظ حسين علي , اللقماني علي عبد الحسين , خانلرى زهرا
Published: March 2024

.
La Rebelión a los valores en el texto narrativo.
Authors: Younus Mohammed Hanan
Published: March 2024

أن الهدف من هذه الدراسة هو تقديم كشف عن التمرد على القيم  في النص الروائي للكاتب المغربي محمد صيباري، وسوف تقدم الدراسة رؤية لأحدى صور التمرد  في المجتمع التي تمثلت في صورة الخيانة الزوجية  التي ظهرت كنتيجة للتمرد على القيم و التقاليد والاعراف الدينية والاجتماعية، ولأجل  تبلور البحث اخترنا نموذجين من الاعمال الروائية لصيباري هما: "ثلاث ضفاف وبحران" و"وردة شفشاون",وبالرغم من ان الخيانة الزوجية لم تكن هي الموضوع الرئيس لهذه الاعمال الا انها  تمتلك أهمية كبيرة في الفضاء العام للموضوع الرئيس وأحداثه, ولهذا تم متابعة الظروف التي جعلت من المرأة تتمرد على مجتمعها,اذ  يكشف لنا البحث عن تلك الصورة للمرأة المتمردة داخل مجتمع له تقاليد وعادات دينية وأجتماعية.
الافلاج من مشاريع الارواء العربية القديمة
Authors: الهاشمي رضا جواد
Published: March 2024

.
سكان الشال الافريقي من اقدم العصور حتى الاسلام
Authors: الجادر وليد محمود
Published: March 2024

.
الصحافة واثرها في تطور فن المقالة
Authors: التكريتي منير بكر
Published: March 2024

.
نظرية انتقاص العقد بين الشريعة والقانون
Authors: غالب اجود علي
Published: March 2024

.
النسخه في القران
Authors: عليان رشدي
Published: March 2024

.
الأدب العربي وطرائق تدريسة
Authors: القيسي نوري حمودي
Published: March 2024

.
تاريخ الاثار بحلقات الاشجار
Authors: الدباغ تقي
Published: March 2024

.
تحدید مصطلحي الجاهلية والامية
Authors: البياتي عادل جاسم
Published: March 2024

.
دور المدارس الأثرية في التعليم في العصر العباسي
Authors: العميد طاهر مظفر
Published: March 2024

.
الأمن السكاني العربي
Authors: محمود صباح
Published: March 2024

.
الثقافة والبناء الاجتماعي والشخصية
Authors: جاسم متعب مناف
Published: March 2024

.
الجملة في اللغة التركي
Authors: بيات فاضل مهدي
Published: March 2024

.
نشأة المذاهب الاسلامية - رؤية جديدة
Authors: فتاح عرفان عبد الحميد
Published: March 2024

.
قادسية صدام وتاريخ الاطماع العنصرية الفارسية
Authors: شفيق عزمي محمد
Published: March 2024

.
التوجيه الفكري للشباب
Authors: محمد صباح محمود
Published: March 2024

.
جوانب من التاثير العربي في اللغة الاسبانية
Authors: الاوسي حكمت علي
Published: March 2024

.
الاسلحة العربية في العصر العباسي
Authors: العبيدي صلاح حسين
Published: March 2024

.
الحفاظ على النسيج الحضرى
Authors: الاشعب خالص حسني
Published: March 2024

.
تحديد اشهر المناخ المريح وغير المريح
Authors: الشلش علي حسين
Published: March 2024

.
دور الشباب العربي في التنمية الاجتماعية والاقتصادية
Authors: شكارة عادل عبد الحسين
Published: March 2024

.
الاهداف التعليمية في تعليم اللغة العربية للاجانب
Authors: شلال محمود حبيب , حمودي فاروق خلف
Published: March 2024

.
الفراغ والترويج في المجتمع الصناعي
Authors: الحسن احسان محمد
Published: March 2024

.
تماثيلي الزينة وتوظيفها في الصناعات اليدوية في - العصر العباسي
Authors: العبيدي صلاح حسين
Published: March 2024

.
الجريمة وسبل الوقاية منها
Authors: العاني عبد اللطيف عبد الحميد
Published: March 2024

.
علل المنع من الصرف عند النحاة
Authors: السامرائي فاضل صالح
Published: March 2024

.
الجوانب العسكرية والعلاقات السياسية في تاريخ العرب القديم للالف الاول
Authors: الهاشمي رضا جواد
Published: March 2024

.
الوجه الستراتيجي الأوحد والوجوه التاكتيكية المتعددة في منطقة « الشرق الأوسط »
Authors: السعدي سعدي محمد
Published: March 2024

.
دلالة السلاح في أدب الحرب
Authors: القيسي نوري حمودي
Published: March 2024

.
التحليل الزماني - المكاني لأمراض الطفل في العراق
Authors: مظفر محسن عبد الصاحب
Published: March 2024

.
أولية القصة في الأدب العربي
Authors: القيسي نوري حمودي
Published: March 2024

.
كيف نجعل من طريقة المحاضرة اكثر فعالية في التدريس الجامعي
Authors: المشهداني محمود
Published: March 2024

.
محمد بن ناصر السلامي محدث العراق .
Authors: التكريتي بهجت کامل , الدليمي زكية حسن
Published: March 2024

.
الأسرة والجريمة والأنحراف .
Authors: عبد الكريم حافظ ناهدة
Published: March 2024

.
مستنسبات أبن رشد في نظرته إلى المرأة
Authors: یونس بحرى منی
Published: March 2024

.
تمثال من عصر نرام سین
Authors: كوركيس يوحنا مجيد
Published: March 2024

.
النقد العربي القديم بين سلطة التراث ومنجز الحداثة
Authors: عبد الله الجادر محمود
Published: March 2024

.
إضطراب ما بعد الضغوط الصدمية
Authors: حسين صالح قاسم
Published: March 2024

.
العروبة - الإسلام عضوية العلاقة تكاملية المنهج
Authors: الحديثي سعد خميس
Published: March 2024

.
الطالب القدوة (دراسة في التمايز السيمانتي)
Authors: إبراهيم رسلول خليل
Published: March 2024

.
الخط العربي بين الدين والإبداع
Authors: الياور طلعت
Published: March 2024

.
قياس القدرة على التفكير الابتكاري للمهندسين المبدعين
Authors: مجول فيصل سناء
Published: March 2024

.
الشعر العباسي في تاريخ الطبري
Authors: السامرائي يونس احمد
Published: March 2024

.
النقود في الخليج العربي منذ صدر الاسلام حتى نهاية العصر العثماني
Authors: القيسي ناهض عبد الرزاق دفتر
Published: March 2024

.
قتل الأصول ... الأسباب والخصائص
Authors: نعمان نبيل
Published: March 2024

.
آراء المعاصرين في مفهوم الأعجاز عند عبد القاهر الجرجاني
Authors: الدبو أيسر محمد فاضل
Published: March 2024

.
التوافق الأسري وعلاقته بالصحة النفسية للطالب الجامعي
Authors: العامري نوال قاسم عباس
Published: March 2024

.
أشكالية الأقصاء الاجتماعي في مدينة بغداد
Authors: العجيلي محمد صالح ربيع
Published: March 2024

.
نقد ابن سبعين لعلوم الفقه والكلام والفلسفة والتصوف في كتاب بد المعارف
Authors: الدليمي طارق هاشم خميس
Published: March 2024

.
الكآبة وعلاقتها بإيذاء الذات لدى الأحداث الجانحين
Authors: حسن فاضل شاكر
Published: March 2024

.
مخطوطان علميان عربيان
Authors: العاني سلسل محمد
Published: March 2024

.
الرعب الجمعي واثره في البناء الاجتماعي: حالة العراق دراسة ميدانية استطلاعية لعينة من طلبة كلية الاداب
Authors: احمد صبيح عبد المنعم
Published: March 2024

.
الأمن النفسي ودافعية الإنجاز
Authors: زايد سهام عريبي
Published: March 2024

.
IS IRAQ ANOTHER VIETN AM? A SOCIOLINGUISTIC ANALYSIS Of THE CONTEXT OF TWO WARS
Authors: Abdul Jabber Asst .prof. Lubna Riyadh
Published: March 2024

.
الإطباق والطبقية في أصوات العربية
Authors: صنكور محمد
Published: March 2024

.
شعرية الاستطراد دراسة نصّية في الأداء الشعري لمحمود درويش
Authors: راشد أنسام محمد
Published: March 2024

.
قلق الإمتحان لدى طلبة الجامعة
Authors: الحلو بثينة منصور
Published: March 2024

.
الاندلسيون الاوائل
Authors: جمال الدين محسن
Published: March 2024

.
النظرية الاجتماعية في المعرفة
Authors: الخشاب احمد
Published: March 2024

.
الاتجاه النفسي في الانثروبولوجيا
Authors: النوري قيس
Published: March 2024

.
حول طائفة من الاصول ذوات السين المندمجة
Authors: علي خالد اساعيل
Published: March 2024

.
الحركة الجوهرية ونظرية الزمان في فلسفة الشيرازي
Authors: ال ياسين جعفر
Published: March 2024

.
کتاب الخيل للأصمعي
Authors: القيسي نوري حمودي
Published: March 2024

.
الصحافة العراقية : نشأتها وتطورها
Authors: التكريتي منير بكر
Published: March 2024

.
دواوين الشعر العباسي
Authors: الزبيدي احمد
Published: March 2024

.
ملاحظات حول سياسة عبد الملك بن مروان
Authors: دكسن عبد الامير
Published: March 2024

.
التقدم الصناعي الياباني السريع بعد الحرب العالمية الثانية
Authors: حسين غزال عباس
Published: March 2024

.
برلين الغربية - دراسة في أثر الموقع الجغرافي في التوطن الصناعي
Authors: رسول احمد حبيب
Published: March 2024

.
وثيقية تتعلق بابن الريوندي تبعا - للماتريدي في كتاب : التوحيد
Authors: الاعسم عبد الامير
Published: March 2024

.
مكسيم غور کی
Authors: ابو اقلام وفية
Published: March 2024

.