OJS NTU Journal
Not a member yet
669 research outputs found
Sort by
Effect of Different Concentrations of Oxalic Acid in the Fallen Mites Mean on the Hive Board During Spring and Early Summer Season
Get PDF The results of the current study showed that the lowest mean of falling mite on the hive board was recorded in the 4.2% concentration treatment which amounted to 0.16 mite compared with the control treatment which recorded the highest mean which was amounted to 4.69 mite. As for the mean number of the expected mite inside the hive, the highest mean was recorded in the control treatment which amounted to 468.6 mite compared with the 4.2% concentration treatment in which the lowest mean was recorded, which amounted to 15.69 mite. As for the relative effectiveness, the highest average was recorded in the control treatment, which amounted to 66.67%, compared with the lowest mean of the 4.2% concentration treatment, which amounted to 17.75%. The above results were reflected in the treatment efficiency to regest the highest mean of efficiency in the 4.2% concentration treatment with a mean of 60.47% compared with the lowest average in the control treatment of 9.47%, knowing that the statistical analysis showed the moral superiority of all oxalic acid treatments over the control treatment
Theoretical and practical investigation of the CTPTC performance using FUZZY logic control
Get PDFThe purpose of this research is to determine the performance of a close type parabolic trough collector (CTPTC) by varying the design and operating parameters on a sunny day. It was carried out at Iraq's Renewable Energy Unit in Hawija. Use water as working fluid (WF) at a mass flow rate of 0.00083, 0.0011, 0.00138 and 0.00166 Kg/s. The concentration ratio of 10, 14, 18 and 22 are used. The fuzzy technique was used to analyze the system's performance, where the theoretical analysis was carried out according to ASHRAE 93-1986 (RA-91). The findings demonstrated that theoretical efficiency reaches a maximum of 58 % when the mass flow is greatest, and the concentration ratio is minimum. Simultaneously, the practical efficiency increases to 38% under the same circumstances
The Role of Talent Management in Building Learning Organizations: An Analytical Study of the Opinions of a Sample of Administrative Leaders at the University of Nineveh
Get PDFThis study aims to measure and diagnose the level of talent management and to clarify the importance of its dimensions and any of these dimensions have an impact on the educated international organizations , The importance of the study is gained from the importance of the two variables studied (talent management, educated organizations) as these two variables are important in management science and in the field of organizational behavior to meet the challenges facing the contemporary business environment , The intellectual basis of the study was based on an analysis between talent management and educated organizations. The study was tested at the Presidency of the University of Nineveh. The study sample included (40) forms distributed to individuals working in the departments and divisions of the Presidency of the university under study. The study started from a problem expressed by a number of questions, including the extent to which talent management is adopted at the university under stud . The questionnaire was used as the main tool for collecting data and information, The study reached the most important results, Talent management has a positive impact on learning organizations, The study presented a set of recommendations that serve the university under study, One of the most prominent of them was the necessity of the university adopting the concept of talent management and promotion in its field of work, and then the possibility of benefiting from it in knowing the reasons for the success of organizations
Achieving Indicators Of Green Quality Function Deployment In Sustainable Marketing have been achieved - A Survey Study At The General Company For Construction Industries In Baghdad
Get PDFThe current research deals with demonstrate the extent to which the indicators of green quality function deployment in sustainable marketing. These indicators were achieved in the General Company for Construction Industries in Baghdad, leading to a research problem that (Does the indicators of green quality function deployment contribute to achieving sustainable marketing?) for the purpose of creating a modern industrial environment that has the ability to produce products that meet the needs of the market in terms of its quality, cost and suitability to the environment according to the constantly changing requirements of customers. The research is conducted in terms of using the descriptive analytical method for the purpose of analyzing the research results. The questionnaire is used as a basic tool for data collection and as an important aspect to complete the practical side in it. which was distributed to a sample in the General Company for Industries. The construction data in Baghdad amounting to (208) is valid for analysis, and the data was then analyzed and research hypotheses tested using ready-made statistical software tools suitable for the study, including (SPSS, Amos 26). The research reached a set of conclusions, including the emergence of survey results that there is a direct and moral effect for the indicators of green quality function deployment in sustainable marketing in terms of the value of the regression coefficient, in addition to developing proposals. The most important are: The Iraqi industrial companies in general, and the company under study in particular, have to face the changing competitive challenges and enhance their competitive position in the market through Indicators Of Green Quality Function Deployment. Therefore, paying attention to the constantly changing opinions of customers and listening to their environmental voices to produce sustainable products can be marketed to current and future generations.
Digital Transformation and Its Effects on The Value System in Islamic Societies
Get PDFThe information revolution and digital communication technologies formed the nucleus of major transformations in the modern era. This transformation was not limited to technical transformation and information and communication technology only, but also extended to various aspects of social, economic and political life....etc. This revolution has resulted in many challenges and changes facing contemporary societies, including our Islamic societies, as a result of the astonishing development in smart communication technologies and tablets, and the applications and software it left behind, which had a great impact on the process of easy access to information and virtual communication, and thus penetration and intrusion into cultures and societies. With ease. These rapid transformations in our Islamic societies have weakened their ability to clearly distinguish between right and wrong values ??and cultures that cross the borders of countries and nations, and thus weakened their ability to pick and choose between conflicting values ??in the contemporary world. In short, the effects of digital transformation appear through the lifestyles that social media reflects that do not exist in the reality of our Arab and Islamic societies, where the manifestations of wealth, consumption habits, eating and drinking methods, fashion and entertainment, as well as the presence of power at the top of the ladder of values, glorification of the authority of sex, pornography and tendency Individualism, irresponsible liberation, justifying illegal relationships and encouraging family disintegration and deviant behavior in exciting ways that hide behind implicit calls to adopt and encourage them, making it difficult for individuals to distinguish their content easily, which negatively affects the structure of societies in terms of intellectual and moral educationand religious.This research is an attempt to shed light on the extent of the reflection of communication and information technology on the value system of our Islamic societies, and work to avoid the negative effects of this transformation with deep awareness and enter into the conflict generated by it with a strong will by confronting the authority of digital information that operates outside the scope of the personal awareness of individuals in an attempt to modify their behavior to serve its goals and objectives
The Role of the Teacher and the Community in Digital Education
Get PDFThe auditor of the contemporary global changes that occur in our lives today becomes clear to him that they are more than just emergency crises that end with the entry of the world into the twenty-first century or with minor modifications to our daily behaviors and skills. Rather, they indicate the emergence of a new era in thought, concept and application.Science develops within moments, and the added value resulting from its applications has increased its innovation and obsolescence processes, and every day new sciences and disciplines that were not known before appear, and its future orientation is centered on interdisciplinary and finding research entrances that contain these branches, while informatics is characterized by control, interaction and temporal and spatial communication. , which increased its employment in the educational and learning process, and led to the emergence of new and previously unknown educational institutions and patterns, and its future orientation is centered on smart systems characterized by taste, smell and sensation, and in the development of what is known as collective intelligence. As for the economic, political and cultural variables of globalization, they linked the global to the local, and made the world a small global village that exchanged influences, events and developments in all fields, which the global human being must learn to live in this global village with the values, trends and behaviors that qualify him to know others, deal with them and respect their cultural specificities, and that He learns to work in light of the increase in economic blocs, mergers, international standards and World Trade Organization (WTO) agreements, and in light of the increasing interdependence of the economies of countries, the increase in the movement of goods, services, labor, capital and investments among them, and the intensification of competition in local and global markets so that survival becomes the fittest, finest and least expensive in At the same time, he must learn how to participate in building civil society on the foundations of democracy, citizenship, positive dialogue, cultural pluralism, peace building and international cooperation, in light of the increasing interdependence
Diagnosis of The Most Important Factors Affecting The Annual Performance Evaluation of The Teaching Cadres Using The Technique of Binary -Response Logistic Regression
Get PDFThe aim of the research is to identify the main factors affecting the evaluation of the annual performance of the teaching staff using the Binary Logistic Regression technique by applying to a random sample of size(217) teaching and teaching staff from four different disciplines (technology, administrative, agricultural, The results of the analysis showed that the completion and publication of scientific research was the most important factor affecting the evaluation of the performance of the teaching staff, followed by the teaching use of modern teaching methods and its incorporation of technology into education
Nanotechnology; The Sience of Present and Future (Principles and Applications)
Get PDFNanotechnology acts as a means to combine different branches of sciences: medicine, pharmacy, engineering, biology, chemistry, agriculture, water desalination, energy storage, production, and conversion are optimal and most important use of nanotechnology as the production of solar cells and hydrogen fuel cells to reduce environmental pollution and diversity sources of energy consumption. The interest in studying nanomaterials and metallic particles is increasing, for instance gold and silver nanoparticles due to their mechanical, optical, electronic, magnetic, and high electrical conductivity properties, as well as the chemical properties and the large surface area regarding to the large size of the same material, leads to an increase in its toxic properties, when collected in huge numbers on the surfaces of cells, consequently to inhibit and kill pathogenic organisms such as viruses, bacteria, and fungi. Manufacture of nanomaterials that use some plants (biosynthesis) to reduce their hazards to the humans and environment and reduce the costs of extracting process which is called a green synthesis
Crop Seed Sizes and Their Role in The Productivity of Field Crops: A Review Article
Get PDF
??? ?????? ???? ?????? ????? ????? ???? ?????????? ???????? ???? ????? ????? ??? ?????? ???? ?? ??? ????? ?? ???????? ????? ?????? ???? ???????. ??? ???? ?? ????? ????? ??????? ??????? ???? ??????? ?? ??? ?????? ????????? ?? ??????? ?? ??????? ?????? ??????? ?? ??? ???????? ????????? ?????? ?????? ????? ?????? ??????? ??????? ???? ???????? ???? ??? ?????? ??????? ?? ?????? ?????? ??????? ???? ????? ??? ????? ??? ???????? ??? ?? ????????? ???????? ?????? ??????? ?????? ????? ?? ??? ???? ???????? ???????? ??????? ??? ??? ?????? ???????. ??????? ?? ???? ???????? ???? ?? ???????? ?? ????? ????? ????? ?????? ??? ??? ????? ???????? ?? ??????? ???????? ????? ????? ???? ??????? ?????? ????????. ????? ??? ????? ???? ?????? ??? ??? ?????? ????? ??????? ???? ??? ?????? ????? ??????? ?????? ???? ??? ??????? ?????? ?????? ???? ????? ?????? ??????? ?????? ???????? ?? ???? ????? ??????. ??? ????? ???? ??????? ??? ???? ????? ????? ??? ??? ?????? ?????? ??? ????? ??????. ?? ????? ??? ?????? ???? ???? ??????? ??????? ?????? ??????? ?? ?? ??????? ????????? ??????? ??????ABSTRACT
The world has begun to be interested in developing new variations that fulfill the needs of the people, which necessitates research into some things that are still uninteresting, such as the many qualities of the varieties. The first cycle of increasing agricultural production begins with the seed, as seeds are one of the important factors affecting crop growth and productivity. High-quality seeds are characterized by a set of specifications, including their good fullness and homogeneity of sizes in the agricultural sample, which is intended to be comparable to plant growth and then balanced exploitation of light energy and growth sources by all plants equally, with its reflection on yield and quality. We conclude from most of the studies that have been reviewed that the technique of grading seed sizes led to stimulating and accelerating germination and thus increasing growth and raising the productivity and quality of crops. Therefore, the seeding rate must be determined according to the number of seeds per unit area, not the weight of the seeds per unit area, and the reason is due to the large variation in the weights of the seeds of one variety per crop planted in different environmental conditions. The majority of the studies likewise found an inverse association between the number of seeds and their size within one weight. Given the rise and rapid population growth, seed size grading may be the most important factor in enhancing output
Natural convection from a radial heat sink with triangular fins
Get PDFThis experimental work summarizes to find the thermal performance of triangular fins in two cases, non-perforated and perforated, and showing the effect of input factors on the thermal performance. Experiments were carried out by testing three fins for the above two cases and the value of heat input rate with three values: 25.69, 63.58, and 136.9 W. A fixed many thermocouples were measure the temperature in the root of the fin and points along its extension and an additional point to measure the ambient temperature. The Rayleigh number and the Nusselt number were calculated. The effect of the Rayleigh number on the Nusselt number was shown. The results showed that the total heat transfer coefficient of the air increases with the increase in heat added in both cases. In addition, it was found that the temperature decrease along the perforated fin is greater than that of the non-perforated fin, and the total Nusselt number increases with the increase in the heat rate input for both cases. The thermal resistance decreases with the increase in Rayleigh number, both perforated and non-perforated. It was also concluded that the non-perforated fins were more efficient in dissipating heat than the perforated fins, and the reason for this is that the heat transfer was under free convection condition