http://148.72.244.84/xmlui/handle/xmlui/15734 كل نتاجات السادة التدريسين في جامعة ديالى لعام 2022 Wed, 22 Apr 2026 12:44:13 GMT 2026-04-22T12:44:13Z http://148.72.244.84/xmlui/handle/xmlui/16404 Title: Development, fabrication and evaluation of semi-automatic field crop transplanter(Article)(Open Access) Authors: نصر سالم حسن, Hassen, Nasir Salim Abstract: Increase the area allocated for field crops cultivation requires moving from manual agriculture to mechanical farming. The aim of this study is development, fabrication and evaluation semi-automatic field crop transplanter. Performance evaluation of the transplanter was carried out for transplanting of 20-25, 25-30, and 30-35 cm corn seedlings at three forward speed levels of 0.3, 0.4 and 0.5 km h-1 under actual field conditions in terms of plant spacing, planting depth, and missing plant index. The transplanter precisely plants seedlings into ground. The effect of seedling height on the planting depth was found to be significant. In addition, plant missing percentage increased with increasing of forward speed. © BEIESP. Sat, 01 Jan 2022 00:00:00 GMT http://148.72.244.84/xmlui/handle/xmlui/16404 2022-01-01T00:00:00Z http://148.72.244.84/xmlui/handle/xmlui/16164 Title: Document details - Combined ORC-HP thermodynamic cycles for DC cooling and waste heat recovery for central heating Authors: محمد رضا جواد التميمي, Al-Tameemi, Mohammed Ridha Jawad Abstract: Data center is an essential part of modern life that is predicted to increase both in capacity and size over the coming years. This sector consumes a significant proportion of electricity for its operation and for the essential cooling facilities. This consumption is expected to rise with increasing demands which can result in more CO2 emission. Waste heat is an inevitable by-product of DC operation with a potential of being sustainable, low cost and environmentally friendly heat source. In this paper, we proposed a novel system that integrates three thermodynamic cycles including an ORC, a HP and a Gas burner. The aim of this system is to provide cooling for the DC as well as to utilize the rejected heat to supply hot water for central heating. The results show that this system can maintain the indoor room temperature between 18-25oC by absorbing 12 kW of heat to increase water temperature from 50 to 80oC. In addition, the system can achieve an overall fuel-to-heat efficiency of 141.8%. Therefore, utilizing such system can have a great potential of improving DC performance as well as providing usable energy by waste heat recovery. © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of ICAE2018 - The 10th International Conference on Applied Energy. Sat, 01 Jan 2022 00:00:00 GMT http://148.72.244.84/xmlui/handle/xmlui/16164 2022-01-01T00:00:00Z http://148.72.244.84/xmlui/handle/xmlui/16005 Title: Bee System-Based Self Configurable Optimized Resource Allocation Technique in Device-to-Device (D2D) Communication Networks(Article)(Open Access) Authors: وسام حيدر مهدي, Hayder Mahdi, Wisam Abstract: With the exponential growth of mobile devices and high capabilities of intelligence, global communication network traffic is expected to experience remarkable growth in the next few years, as it leads us to poor network experience. The Device-to-Device (D2D) is a prominent solution to further expand the user experience and network performance. To improve it many nature-inspired computing algorithms are widely used. In line with this, we use swarm-based algorithms for network performance improvement. In this paper, we propose a swarm optimization-based resource allocation methodology for D2D communication, especially since we are focusing on the bee fly pattern to optimize the resource available resources within the network's proximity area. Where all bees are working together to find the best optimal availability of the network's services, hereafter mobile users get served with a respective set of resources. If the performance is not up to the pre-defined threshold value then the system adds another set of available network resources and relay nodes. It leads to relay-assisted D2D pair communication based on the bee fly pattern. It improves the D2D mobile pair's user experience in terms of energy, delay, and mobility support. To validate our results we compare our outcome with state-of-the-art works and provide detailed observations subject to various listed parameters. © 2013 IEEE. Mon, 01 Jan 2024 00:00:00 GMT http://148.72.244.84/xmlui/handle/xmlui/16005 2024-01-01T00:00:00Z http://148.72.244.84/xmlui/handle/xmlui/16004 Title: University of Diyala Authors: مروه محمد جواد, Al-Sultani, Marwa Sat, 01 Jan 2022 00:00:00 GMT http://148.72.244.84/xmlui/handle/xmlui/16004 2022-01-01T00:00:00Z