Relevant bibliographies by topics / Optimiation

Academic literature on the topic 'Optimiation'

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Published: 14 March 2023

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Journal articles on the topic "Optimiation"

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Abdulqadur, Ammar Abdulhaleem, Hayder Mohammad Jaffal, and Dhamyaa Saad Khudhur. "Performance optimiation of a cylindrical mini-channel heat sink using hybrid straight–wavy channel." International Journal of Thermal Sciences 146 (December 2019): 106111. http://dx.doi.org/10.1016/j.ijthermalsci.2019.106111.

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Umeda, Toyohiro, Akira Kitamura, Masami Konishi, Shinzo Kanamura, and Shinji Takami. "Optimiation Search Algorithm of Allocation Planning for Strip Coils in Hold for Shipment by Using Operational Know-how." ISIJ International 41, no. 5 (2001): 446–53. http://dx.doi.org/10.2355/isijinternational.41.446.

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Haris, Abdul, Nabilla Anggraini, and Hengki Sikumbang. "Teknologi Irigasi Cerdas pada Sistem Irigasi Drip dengan Algoritma Ant Colony Optimization." Jurnal Teknologi Informasi dan Ilmu Komputer 9, no. 6 (December 22, 2022): 1289. http://dx.doi.org/10.25126/jtiik.2022955871.

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<p class="Abstrak">Rendahnya penggunaan sistem irigasi modern di Indonesia menyebabkan produktivitas lahan yang rendah, terlebih di musim kemarau hal ini dapat menyebabkan banyak lahan yang tidak produktif. Sementara di sisi lain, perkembangan teknologi komputasi sudah masuk dalam berbagai bidang kehidupan, termasuk pertanian. Contoh penerapan teknologi di bidang pertanian adalah diperkenalkannya sistem irigasi <em>drip.</em> Banyak peneliti yang telah melakukan kajian dan inovasi di bidang ini untuk menghasilkan irigasi yang baik dan optimal, antara lain dengan mengimplementasikan gabungan <em>Internet</em><em> of Things</em> (IoT) sebagai infrastruktur, <em>Fuzzy Logic</em> dan <em>Artificial Neural Network</em> (ANN) sebagai algoritma untuk menentukan waktu buka tutup dari <em>Solenoid Valve</em> dalam pengaturan distribusi air. Penelitian yang ada hanya berfokus pada <em>Open/Close solenoid valve</em>. Penelitian ini menggunakan algoritma <em>Ant Colony Optimiation </em>(ACO) untuk mengendalikan katup tersebut, sekaligus melakukan <em>tracking</em> lokasi lahan yang menjadi prioritas irigasi. Algoritma ini dapat bekerja secara dinamis dan adaptif, sehingga mampu menyesuaikan dengan kondisi lahan yang ada dan dapat dimonitor secara <em>realtime.</em> Uji coba dilakukan dengan menggunakan 3 sensor, sebagai representasi 3 kondisi lahan yakni lahan basah, lahan normal dan lahan kering. Hal ini dilakukan untuk memastikan model yang dibuat dapat bekerja sesuai dengan kondisi lahan yang ada. Dari hasil pengujian yang dilakukan selama 10 hari, tingkat persentasi <em>error </em>model mencapai 26% dan nilai akurasi model adalah 74%. Dari hasil yang diperolah, dapat disimpulkan bahwa hasil penelitian ini bekerja dengan baik untuk sistem irigasi <em>drip</em> skala kecil yang dinamis.</p><p class="Abstrak"> </p><p class="Abstrak"><em><strong>Abstract</strong></em></p><p class="Abstrak"><em>The low use of modern irrigation systems in Indonesia leads to low land productivity, especially in the dry season this can result to many areas of unproductive land. At the same time, the development of computing technology has entered various areas of life, including agriculture. An example of the application of technology in agriculture is the introduction of drip irrigation systems. Many researchers have conducted studies and innovations in this matter to produce a better and more optimal irrigation, for example, by implementing a combination of Internet of Things (IoT) for the infrastructure, Fuzzy Logic and Artificial Neural Network (ANN) as algorithms to determine when the lid of the Solenoid Valve is open or closed. Existing research only focuses on the Open / Close solenoid valve, meanwhile this research uses the Ant Colony Optimiation (ACO) algorithm to control the valve and provide the tracking ability to determine the area that needs irrigation the most. This algorithm can work dynamically and adaptively, so it is able to adjust to the land conditions and can be monitored in real time. The testing is conduvted using 3 sensors, as a representation of 3 land conditions, namely wetlands, normal land, and dry land. This is done to ensure the prototype can work in accordance with existing land conditions. From the results of the test conducted for 10 days, the model error percentage rate reached 26% and the model accuracy value was 74%. Thus, it can be concluded that the result of this study work well for dynamic small-scale drip irrigation systems.</em></p><p class="Abstrak"><em><strong><br /></strong></em></p>
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Arawan, Made. "Optimasi Celluler Coverage 4G LTE dengan Remote Electric Tilting Antena Sektoral E-Node B." JREC (Journal of Electrical and Electronics) 10, no. 1 (August 25, 2022): 41–45. http://dx.doi.org/10.33558/jrec.v10i1.4444.

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Tingginya mobilitas dan semakin banyaknya pengguna/UE sistem komunikasi bergerak selullar 4G LTE serta seiring penambahan pembangunan gedung bertingkat yang menjadi penghalang sinyal radio frekuensi antara e-NodeB dengan UE di daerah padat penduduk. Kondisi ini menurunkan kinerja parameter utama/QoS selullar segmen jaringan akses 4G LTE yang meliputi parameter RSRP, RSRQ dan SINR dan penurunan kinerja jaringan akses ini merugikan pengguna maupun selullar/mobile service provider. Dengan mempertimbangkan kecepatan pelaksanaan optimasi dan efektifitas sumber daya dan dengan tujuan untuk meningkatkan kinerja jaringan akses, dipilih salah satu upaya yaitu melakukan optimasi coverage 4G LTE dengan remote electric tilting (RET) antena sektoral e-NodeB. Pengukuran kinerja jaringan akses dilakukan 2 kali dengan drive test (sebelum optimasi) pada rute dan area yang telah ditentukan menggunakan UE android yang telah diinjeksi aplikasi Nemo Handy. Hasil log file aplikasi Nemo Handy diolah menggunakan aplikasi Nemo Analyze, dari hasil Nemo Analyze dilakukan evaluasi dan analisa untuk mengetahui kinerja dan badspot dan kemudian akan ditentukan antena sektoral yang akan dilakukan RET. Setelah dilakukan RET segera dilakukan drive test (setelah optimasi) pada rute dan area yang sama untuk mengukur kinerja jaringan akses. Hasil penelitian dengan metode RET menghasilkan dua hal, yaitu : pertama, dari segi waktu metode RET lebih cepat 4 hari dibanding metode electrical tilting (ET) karena dalam metode RET tidak diperlukan proses perizinan kepada pemilik site untuk masuk site e-NodeB, dan kedua, dari segi kinerja diperoleh peningkatan kinerja RSRP (0,65%), RSRQ (1,32%), SINR (6,13%). Hasil RET menunjukkan optimasi coverage yang optimal dilihat dari segi kinerja jaringan maupun dari segi waktu pelaksanaan. The high mobility and the increasing number of users/UE of the 4G LTE cellular mobile communication system as well as the addition of high-rise building construction becomes a block for radio frequency signals between e-NodeB and UE in densely populated areas. This condition reduces the performance of the main parameters / cellular QoS of the 4G LTE access network segment which includes the parameters of RSRP, RSRQ and SINR and also affect both users and cellular / mobile service providers. By considering the speed of optimization, resource effectiveness and the aim of improving the access network performance, the method used is 4G LTE coverage optimization with e-NodeB sectoral antenna remote electric tilting (RET). The performance measurement of the access network are twice carried out with test drive (before optimiation) on the route and area that has been determined using the UE android and injected with the Nemo Handy application. The results of the Nemo Handy application log file are processed using the Nemo Analyze application. Moreover, the Nemo Analyze results evaluation and analysis is carried out to determine the performance and badspots of the access network as well as RET from the sectoral antenna. Furthermore, a drive test (after optimization) is immediately conducted on the same route and area to measure the performance of the access network. The results of the research using the RET method produced show, firstly, in terms of time, the RET method was 4 days faster than the electrical tilting (ET) method because the RET method does not need for a permit to a siteowners to enter the e-NodeB site. Secondly, in terms of performance, the performance of RSRP (0.65%), RSRQ (1.32%), SINR (6.13%) increase. In conclusion, the RET results show optimal coverage in terms of network performance and implementation time.
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ÖZTÜRK, Burak, Şahin KAYMAK, and Özkan KÜÇÜK. "TAGUCHI AND RSM BASED OPTIMIATION OF ENERGY CONSUMPTION ON INTERNAL GEAR PUMPS." International Journal of 3D Printing Technologies and Digital Industry, April 29, 2022. http://dx.doi.org/10.46519/ij3dptdi.1001245.

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Wongchai A, Mohammed A. S. Abourehab, Mohammed Altaf Ahmed, Saibal Dutta, Koduganti Venkatrao, and Kashif Irshad. "Application of soft sensors and ant colony optimiation for monitoring and managing defects in the automation industry." International Journal of Advanced Manufacturing Technology, February 27, 2023. http://dx.doi.org/10.1007/s00170-022-10753-8.

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Dissertations / Theses on the topic "Optimiation"

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COCCA, MICHELE. "Electric Revolution in Free Floating Car Sharing: a data driven methodology for system design." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2872345.

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Agrawal, Rakshita. "Planning and scheduling problems in manufacturing systems with high degree of resource degradation." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/34767.

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The term resource is used to refer to a machine, tool-group, piece of equipment or personnel. Optimization models for resource maintenance are obtained in conjunction with other production related decisions like production planning, production scheduling, resource allocation and job inspection. Emphasis is laid on integrating the above inter-dependent decisions into a unified optimization framework. This is accomplished for large stationary resources, small non-stationary resources with high breaking rate and for resources that form a part of a network. Owing to large problem size and high uncertainty, the optimal decisions are determined by formulating and solving the above problems as Markov decision processes (MDPs). Approximate dynamic programming based algorithms are used for solving the large optimization problems at hand. The performance of resulting near optimal policies is compared with that of traditional formulations in all cases. The latter treat the resource maintenance decisions independent of other manufacturing related decisions. In certain formulations, the resource state is not completely observable. This results in a partially observable MDP (POMDP). An alternative algorithm for the solution of POMDP is developed, where several mixed integer linear programs (MILPs) are solved during each ADP iteration. This helps obtain better quality solutions for the POMDPs with very large or continuous action spaces in an efficient manner.
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HSING, HSU YUAN, and 許原興. "Stress Analysis and Design Optimiation of Hydraulic Press Frames." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/64277324372414431415.

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碩士
大葉大學
機械工程研究所碩士在職專班
97
ABSTRACT In this study, the structural behavior of the frame of a hydraulic press is investigated in detail. The frame is first subjected to finite element analysis to obtain the displacement, strain, and the stress distributions. In order to assure the correctness of the associated finite element model employed, actual measurement for the displacement is also executed. A comparison of the measurement data with respect to the numerical values indicates that the finite element model employed is acceptable. Based on this model, a design optimization for minimization of the frame weight is then performed to have the best combination of the various design dimensions of the frame. The solid model of the frame is constructed by the Solidworks. The finite element model and the subsequent analyses for the displacement, strain, and stress distributions are performed by the Cosmosworks built in the Solidworks. In the analyses, not only the individual components but also the structure as a whole are all subjected to respective analysis. The analyses indicate that some constraints as regarded to the design dimensions (design variables) are not appropriate. In some situations, modifying the constraints can lead to divergence of the desired solution. Through trial-and-error process, desired solution to the design optimization at hand is finally achieved. The numerical data shows that the total weight of the frame reduces by an amount of 26 %, which can be considered as excellent. Keywords: Hydraulic Press, Finite Element Analysis, Optimization
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李晉文. "Optimiation of dopped ITO with Ni for practical OLED application." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/80239773606764187389.

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碩士
南台科技大學
電機工程系
91
In this study, the DC magnetron sputtering was employed to fabricate indium tin oxide (ITO) films for organic light-emitting diode (OLED) application. Process parameters, such as pressure, power and substrate temperature, were varied to observe then effects on the resistivity, transparency and surface roughtness of the ITO films. The ITO films were thermal annealed at 300oC in high vacuum to realize the possible factors that would affect the ITO film properties after the thermal cycle. Ni-doped ITO was co-sputtered on top of the un-doped ITO film using RF and DC power respecting for Ni & ITO. During the co-sputtering various parameters such as power, deposition time and gas flow were changed to observe the effect of the resistivity, transparency, dopant concentration of the Ni dopped ITO with Ni. Results showed that the without Ni doping best ITO film characteristics were achieved under an optimized sputtering condition of 120oC, 300W and 3.2 mtorr. ITO sheet resistivity as low as 2.4E-4Ω-cm and optical transparency up to 91.7%, Have been obtained next paragraph double hetrojunction OLED devices with the structure of Al(50nm) /Alq3(35nm)/NPB(20nm)/ITO(200nm) /glass were fabricated using the optimized ITO film with and without Ni doping as the anode. Devices with an turn-on voltage of 12V for undoped ITO samples. The second part experimental results showed that the best ITO film characteristics were achieved under an optimized sputtering condition of 300W and 90sec the ITO sheet resistivity as low as 2.0E-4Ω-cm, optical transparency up to 90%, can be achieved and with an turn-on voltage of 6.5V for Ni-doped ITO samples were observed. With Ni doping, pat this in the end of paragh 1. with Ni-doping in ITO the maximum luminescence of the OLED devices was 2611 cd/m2; the luminescent efficiency was 1.093 lm/W; and the power consumption of OLED could effectively reduced to 0.941 lm/W. From the results, with Ni-doped ITO films the OLED devices can perform better turn on voltage, luminescence efficiency and power consumption mainly due to the potential barrier reduction at the ITO/NPB interface attribwted by the adding of Ni in ITO.
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Mullapudi, Ravi Teja. "Polymage : Automatic Optimization for Image Processing Pipelines." Thesis, 2015. http://etd.iisc.ernet.in/2005/3757.

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Image processing pipelines are ubiquitous. Every image captured by a camera and every image uploaded on social networks like Google+or Facebook is processed by a pipeline. Applications in a wide range of domains like computational photography, computer vision and medical imaging use image processing pipelines. Many of these applications demand high-performance which requires effective utilization of modern architectures. Given the proliferation of camera enabled devices and social networks optimizing these emerging workloads has become important both at the data center and the embedded device scales. An image processing pipeline can be viewed as a graph of interconnected stages which process images successively. Each stage typically performs one of point-wise, stencil, sam-pling, reduction or data-dependent operations on image pixels. Individual stages in a pipeline typically exhibit abundant data parallelism that can be exploited with relative ease. However, the stages also require high memory bandwidth preventing effective uti-lization of parallelism available on modern architectures. The traditional options are using optimized libraries like OpenCV or to optimize manually. While using libraries precludes optimization across library routines, manual optimization accounting for both parallelism and locality is very tedious. Inthisthesis,wepresentthedesignandimplementationofPolyMage,adomain-specific language and compiler for image processing pipelines. The focus of the system is on au-tomatically generating high-performance implementations of image processing pipelines expressed in a high-level declarative language. We achieve such automation with: • tiling techniques to improve parallelism and locality by introducing redundant computation, v a model-driven fusion heuristic which enables a trade-off between locality and re-dundant computations, and anautotuner whichleveragesthefusionheuristictoexploreasmallsubsetofpipeline implementations and find the best performing one. Our optimization approach primarily relies on the transformation and code generation ca-pabilities of the polyhedral compiler framework. To the best of our knowledge, this is the first model-driven compiler for image processing pipelines that performs complex fusion, tiling, and storage optimization fully automatically. We evaluate our framework on a modern multicore system using a set of seven benchmarks which vary widely in structure and complexity. Experimental results show that the performance of pipeline implementations generated by our approach is: • up to 1.81× better than pipeline implementations manually tuned using Halide, a state-of-the-art language and compiler for image processing pipelines, • on average 5.39× better than pipeline implementations automatically tuned using Halide and OpenTuner, and • on average 3.3× better than naive pipeline implementations which only exploit par-allelism without optimizing for locality. We also demonstrate that the performance of PolyMage generated code is better or compa-rable to implementations using OpenCV, a state-of-the-art image processing and computer vision library.
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Books on the topic "Optimiation"

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Finetti, Bruno de, ed. Mathematical Optimiation in Economics. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11039-9.

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service), SpringerLink (Online, ed. Mathematical Optimiation in Economics. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2011.

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Book chapters on the topic "Optimiation"

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Guilbaud, G. Th. "Quelques Reflexions Mathematiques." In Mathematical Optimiation in Economics, 1–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11039-9_1.

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Kuhn, Harold W. "Locational Problems And Mathematical Programming." In Mathematical Optimiation in Economics, 57–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11039-9_2.

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Morishima, Michio. "The Multi-Sectoral Theory of Economic Growth." In Mathematical Optimiation in Economics, 79–163. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11039-9_3.

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Martos, B., and J. Kornai. "Experiments in Hungary with Industry-Wide and Economy-Wide Programming." In Mathematical Optimiation in Economics, 165–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11039-9_4.

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Prékopa, András. "Probability Distribution Problems Concerning Stochastic Programming Problems." In Mathematical Optimiation in Economics, 195–221. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11039-9_5.

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Frisch, Ragnar. "General Outlook on a Method of Advanced and Democratic Macroeconomic Planning." In Mathematical Optimiation in Economics, 223–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11039-9_6.

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Conference papers on the topic "Optimiation"

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Hui Xiao, Yi Zhang, Yong Yan, and Jinguang Wang. "Particle swarm optimiation based sky luminance model recognition algorithm." In 2008 7th World Congress on Intelligent Control and Automation. IEEE, 2008. http://dx.doi.org/10.1109/wcica.2008.4593525.

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Poliannikov, Oleg V., Elena Zhizhina, and Hamid Krim. "A New Approach to Global Optimiation by an Adapted Diffusion." In 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing. IEEE, 2007. http://dx.doi.org/10.1109/icassp.2007.367108.

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Park, Gyung-Jin, Hwan-Hak Jang, and Hyun-Ah Lee. "Dynamic Response Topology Optimiation in the Time Domain using Equivalent Static Loads." In 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-2090.

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Li Liu, Wenxin Liu, David A. Cartes, and Nian Zhang. "Real time implementation of Particle Swarm Optimiation based model parameter identification and an application example." In 2008 IEEE Congress on Evolutionary Computation (CEC). IEEE, 2008. http://dx.doi.org/10.1109/cec.2008.4631268.

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Kahng, Sungtek, Tae-Kyung Chung, and Hyeong-seok Kim. "GA-optimiation to damp the resonance of large power/ground planes, combined with Adaptive Frequency Sampling." In 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation (CEFC 2010). IEEE, 2010. http://dx.doi.org/10.1109/cefc.2010.5481287.

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