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Journal articles on the topic 'Idle operation'

Author: Grafiati

Published: 30 June 2021

Last updated: 29 July 2025

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1

Malyshev, Nikolay, and Sergey Boykov. "Priority Model of Car Delivery Service." Proceedings of Petersburg Transport University 19, no. 4 (2022): 839–46. http://dx.doi.org/10.20295/1815-588x-2022-4-839-846.

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Purpose: for the definition of optimal switch point of crane operation between platforms, to perform task simulation of priority choice in car delivery service, the task should feature penalty consideration for excessive idle delivery at freight front. Methods: Methods of probability theory, queuing and mathematical statistics as well as expert assessments are used to find distribution. Results: Priority model for car delivery service has been worked out. The dependences of average cost of idle time of two car delivery under freight operations - from the moment of switch between deliveries at

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2

Kakuma, Yojiro, Kenji Kishimoto, Keiichi Hasegawa, Ryuichi Sekita, and Yukio Koyari. "Idle mode operation of LE-5A engine." Acta Astronautica 22 (January 1990): 205–11. http://dx.doi.org/10.1016/0094-5765(90)90022-d.

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Peng, Mei Chun, Bin Feng, Jie Song Zhang, and Quan Zhen Lin. "The Construction of Bus Operation Cycle." Applied Mechanics and Materials 291-294 (February 2013): 1541–49. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.1541.

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This paper is involved in the construction of bus operation cycle, through the vehicle test on road to gain the data of bus practical operation mode, using statistical analysis in data processing to construct the operation cycle, and analyze the cycle characteristics. Through the analysis of bus operation characteristics, firstly it was found there were 4 big category modes, namely the idle, constant speed, acceleration and deceleration. Then according to the speed interval of 10 km/h and the acceleration interval of 0.5m/s2, each big category mode including of constant speed, acceleration and

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Vos, Kalen R., Gregory M. Shaver, Mrunal C. Joshi, and James McCarthy. "Implementing variable valve actuation on a diesel engine at high-speed idle operation for improved aftertreatment warm-up." International Journal of Engine Research 21, no. 7 (2019): 1134–46. http://dx.doi.org/10.1177/1468087419880639.

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Aftertreatment thermal management is critical for regulating emissions in modern diesel engines. Elevated engine-out temperatures and mass flows are effective at increasing the temperature of an aftertreatment system to enable efficient emission reduction. In this effort, experiments and analysis demonstrated that increasing the idle speed, while maintaining the same idle load, enables improved aftertreatment “warm-up” performance with engine-out NOx and particulate matter levels no higher than a state-of-the-art thermal calibration at conventional idle operation (800 rpm and 1.3 bar brake mea

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Md Salleh, Salihatun, Erween Abdul Rahim, Imran H. Ghazali, et al. "Hand-Arm Vibration Analysis of Palm Oil Fruit Harvester Machine." Applied Mechanics and Materials 315 (April 2013): 621–25. http://dx.doi.org/10.4028/www.scientific.net/amm.315.621.

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The objective of this study is to determine the vibration value of Palm Oil Harvester Machine or CANTAS motorized cutter profile. The CANTAS machines have been divided into twelve nodes and hand arm vibration measurements are taken for idle and full throttle operation. Three cutting heads provided by MPOB have been measured for comparison purposes. The hand-arm vibration values for Type A Cutting head achieves (3.89±1.10) m/s2 for idle condition and (10.71±2.88) m/s2 for full throttle condition. Meanwhile Type B Cutting Head achieves (3.63±0.87) m/s2 for idle condition and (11.22±1.74) m/s2 fo

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Moussavi Nadoushani, Zahra Sadat, Ali Akbarnezhad, and David Rey. "Optimization of concrete placing operation based on competing carbon footprint, cost and production rate objectives." Engineering, Construction and Architectural Management 25, no. 7 (2018): 938–57. http://dx.doi.org/10.1108/ecam-05-2017-0080.

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Purpose Due to considerable contributions of the construction industry to the global carbon emissions, a great deal of attention is placed on possible incorporation of carbon footprint minimization as an important objective in the planning of construction operations. The purpose of this paper is to present a framework to estimate and minimize the carbon emissions of the concrete placing operation through identifying the optimal number of pumps and the inter-arrival time of truck mixers. Design/methodology/approach The proposed framework integrates discrete event simulation and multi-objective

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Radzevich, Stephen P. "About Hob Idle Distance in Gear Hobbing Operation." Journal of Mechanical Design 124, no. 4 (2002): 772–86. http://dx.doi.org/10.1115/1.1517561.

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This study is focused on some features of geometry and kinematics of gear hobbing operation. The principal goal is to determine minimal hob idle distance required for complete generation of the gear teeth. This task is of importance in two aspects: to cut hobbing time and to reduce axial size of a hobbed cluster gear, gear with shoulder etc. The necessity of cutting hobbing time is evident. Reduction of axial size of a hobbed gear cluster leads to reduction of size and weight of the gear cluster itself and of the gear train housing, and therefore its necessity is also evident. Methods of analy

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Yang, Hong An, Jin Yuan Li, and Liang Liang Qi. "An Improved Genetic Algorithm For Just-In-Time Job-Shop Scheduling Problem." Advanced Materials Research 472-475 (February 2012): 2462–67. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.2462.

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This paper studies a just-in-time job-shop scheduling problem (JITJSSP) in which each operation has an earliness cost or a tardiness cost if it is completed before or after its due date and the objective function is to minimize the total earliness and tardiness costs of all operations. In order to solve this problem, an improved genetic algorithm (IGA) is introduced in this paper. IGA utilizes an operation-based scheme to represent schedules as chromosomes. Then, each chromosome is processed through a three-stage mechanism. Firstly, the semi-active decoding process is employed to expand the se

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Aldi, Nicola, Nicola Casari, Ettore Fadiga, et al. "Off-line washing effectiveness on a multistage axial compressor." E3S Web of Conferences 312 (2021): 11016. http://dx.doi.org/10.1051/e3sconf/202131211016.

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The interaction between gas turbines and airborne particles determines detrimental effects on the performance, efficiency, and reliability of the power unit. When it is possible, the interaction is reduced by the use of inlet separators and filtration systems. In an aero engine, these barriers are difficult to implement, and only bigger particles (usually greater than 10 μm) are separated from the airflow. Small units, especially those equips helicopters, are usually affected by fouling issues, especially when the aircraft is employed in harsh environments such as firefighting and rescue activ

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Ramesh, Aswin K., Troy E. Odstrcil, Dheeraj B. Gosala, et al. "Reverse breathing in diesel engines for aftertreatment thermal management." International Journal of Engine Research 20, no. 8-9 (2018): 862–76. http://dx.doi.org/10.1177/1468087418783118.

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Approximately 40% of typical heavy-duty vehicle operation occurs at loaded idle during which time conventional diesel engines are unable to maintain aftertreatment component temperatures in a fuel-efficient manner. Fuel economy and thermal management at this condition can be improved via reverse breathing, a novel method in which exhaust gases are recirculated, as needed, from exhaust to intake manifold via one or more cylinders. Resultant airflow reductions increase exhaust gas temperatures and decrease exhaust flow rates, both of which are beneficial for maintaining desirable aftertreatment

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Sakanko, Musa Abdullahi, Abubakar Ijoko, and Inuwa Yaqoub Mohammed. "The Dynamic Impacts of Idle Cash on Economic Growth in Nigeria (1985 – 2018)." Empirical Economic Review 2, no. 2 (2019): 33–52. http://dx.doi.org/10.29145/eer/22/020103.

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The study investigated the dynamic effect of idle cash on economic growth in Nigeria from 1985 to 2018 employing a mixed methodology. The qualitative result revealed that political affluence, social status, treasury single account, asset declaration, biometric verification number, whistle-blower programme, and the empowering operation of economic and financial crime commission for anti-corruption crusade determine idle cash in Nigeria. On the other hand, the quantitative result revealed that idle cash has an inverse effect on economic growth in the short run. However, the long run result revea

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Turabimana, Pacifique, Jung Woo Sohn, and Seung-Bok Choi. "Design and Control of a Shape Memory Alloy-Based Idle Air Control Actuator for a Mid-Size Passenger Vehicle Application." Applied Sciences 14, no. 11 (2024): 4784. http://dx.doi.org/10.3390/app14114784.

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The idle air control actuator is an important device in automotive engine management systems to reduce fuel consumption by controlling the engine’s idling operation. This research proposes an innovative idle air control (IAC) actuator for vehicle applications utilizing shape memory alloy (SMA) technology. The proposed actuator leverages the unique properties of SMAs, such as the ability to undergo large deformations upon thermal activation, to achieve precise and rapid controls in the air intake of automotive engines during idle conditions. The actuator structure mechanism consists of an SMA s

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Ivana, Amilia Lalita, and Hary Moetriono. "Optimasi Waktu Sandar Kapal Untuk Meningkatkan Kinerja Pelayanan Di Terminal Jamrud Pelabuhan Tanjung Perak Surabaya." MoDuluS: Media Komunikasi Dunia Ilmu Sipil 3, no. 1 (2021): 19. http://dx.doi.org/10.32585/modulus.v3i1.1801.

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Transportasi laut merupakan sarana penting diberbagai bidang, antara lain adalah bidang ekonomi, sosial, keamanan, dan lain-lain. Prasarana paling penting dalam keberlangsungan transportasi laut adalah pelabuhan. Terminal Jamrud Pelabuhan Tanjung Perak merupakan terminal barang yang melayani domestik dan internasional. Dalam menjaga pelayanan pelabuhan agar berjalan tetap optimal, maka perlu menghindari waktu tunggu kapal. Penelitian ini bertujuan untuk membuat strategi optimasi waktu sandar kapal dengan mengoptimalkan pelayanan pengangkutan. Penelitian ini dilakukan dengan mengumpulkan dan me

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Cai, Wenjie, Feng Tian, Dongqiang Shi, and Hedong Liu. "A Multi-mode Power Management Method for Aircraft Convolution." Journal of Physics: Conference Series 2242, no. 1 (2022): 012046. http://dx.doi.org/10.1088/1742-6596/2242/1/012046.

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Abstract In order to realize the management of the aircraft, it is suitable for the long-term management operation of the aircraft. In this paper, a multi-mode management method for aircraft based on convolution prediction is proposed. Firstly, the historical consumption data of the system over time is collected, and its idle time is sorted into time-dependent historical input data. Secondly, the consumption prediction model based on convolution is established. The historical idle time series of the systemt is input, and the system is output to predict the idle time series. Finally, according

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Lala, Nisar A., G. M. Mir, Altaf A. Balkhi, and N. A. Sofi. "Fuzzy Rule based Quality of Service Provisioning in Cognitive Radio Network." Oriental journal of computer science and technology 11, no. 1 (2018): 55–63. http://dx.doi.org/10.13005/ojcst11.01.10.

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Cognitive radio (CR) is a novel technology to resolve the issue of under-utilization of wireless spectrum. Quality of service (QoS) provisioning in CR networks to large number of traffic as per their need is not an easy task since no wireless spectrum is available on permanent basis for its operation. In this paper, few critical QoS parameters namely dynamic-availability-of-idle-channels (avail-idle-channel), expected-holding-time-of-idle-channel (HT-idle-channel) and user-mobility are chosen to analyze their impact over quality of service of the communicating cognitive users using rule-based

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16

Wang, Dan, Zhong Chang Liu, and Jing Tian. "Control Strategies for Safe Diesel Particulate Filter Uncontrolled Regeneration during Idle." Advanced Materials Research 614-615 (December 2012): 366–70. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.366.

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For diesel particulate filter (DPF) drop-to-idle uncontrolled regeneration, a regular regeneration is initiated following a vehicle stop while the engine switches to idle. The increase in oxygen concentration and the decrease in exhaust flow rate can result in a sharp exotherm in the filter and high temperature to damage the substrate. In this paper, control solutions for the idle thermal protection of the filter was proposed and validated experimentally. At high idle speed of 2200rpm, increasing exhaust gas recirculation (EGR) combined with intake throttling was a practical way to reduce avai

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Shubenko, Aleksandr, Vladimir Goloshchapov, Daria Senetska, and Oleksandr Senetskyi. "Determination of the Idle Mode of the Stage of Axial Turbine during Operation at Partial Loads." Periodica Polytechnica Mechanical Engineering 65, no. 1 (2020): 103–9. http://dx.doi.org/10.3311/ppme.17359.

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On the basis of the one-dimensional theory of calculating the operation of steam turbine stages the method for determining the idle mode, the initial data for which are the geometric characteristics of the blade rows is proposed. Formulas have been obtained that make it possible to calculate the efficiency in the proximity of Rotor Blades (RB) at operating modes from nominal to the idle mode, depending on the flow rate of the stage and taking into account the use of kinetic energy with the runaway velocity and losses arising at off-design angles of flow on the Rotor Blade (RB). The results of

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Fang, Sitong. "Strategies for Elevating Idle Fish in the Second-Hand E-commerce Market." Highlights in Business, Economics and Management 23 (December 29, 2023): 740–46. http://dx.doi.org/10.54097/cn605x34.

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The rapid development of digital technology and the Internet has also created favorable conditions for the rise of second-hand trading platforms. The popularity of the Internet has made it easier for people to find and trade unused items. In contrast, the popularity of smartphones and apps has further promoted the convenience of second-hand transactions. Idle Fish is a subsidiary of Alibaba and provides a second-hand goods trading platform and community. This article analyzes Idle Fish’s operational strategy, including cooperation with Taobao and Alibaba, multi-functional services, platform pa

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Verbiskiy, V. S., L. V. Iqrevskiy, and A. B. Dengayev. "Development, testing and operation of idle and low-yield wells." "Proceedings" of "OilGasScientificResearchProjects" Institute, SOCAR, no. 3 (September 30, 2012): 54–58. http://dx.doi.org/10.5510/ogp20120300124.

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20

Yang, Dan, Zhiqiang Xie, and Chunting Zhang. "Multi-flexible integrated scheduling algorithm for multi-flexible integrated scheduling problem with setup times." Mathematical Biosciences and Engineering 20, no. 6 (2023): 9781–817. http://dx.doi.org/10.3934/mbe.2023429.

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<abstract> <p>To address the multi-flexible integrated scheduling problem with setup times, a multi-flexible integrated scheduling algorithm is put forward. First, the operation optimization allocation strategy, based on the principle of the relatively long subsequent path, is proposed to assign the operations to idle machines. Second, the parallel optimization strategy is proposed to adjust the scheduling of the planned operations and machines to make the processing as parallel as possible and reduce the no-load machines. Then, the flexible operation determination strategy is comb

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Mondal, Manik, Kazushi Sano, Teppei Kato, and Chonnipa Puppateravanit. "Optimization of Taxi Allocation for Minimizing CO2 Emissions Based on Heuristics Algorithms." Smart Cities 6, no. 3 (2023): 1589–611. http://dx.doi.org/10.3390/smartcities6030075.

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Recently, the rapid climate change caused by increasing CO2 emissions has become a global concern. Efficient transportation systems are necessary to reduce CO2 emissions in cities. Taxi services are an essential part of the transportation system, both in urban areas with high demand and in rural areas with inadequate public transportation. Inefficient taxi services cause problems such as increased idle times, resulting in increased CO2 emissions. This study proposes a taxi allocation model that minimizes taxi idle time costs for efficient taxi service operation. We also propose three heuristic

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Kostov, Ivelin. "THE ROLE OF THE TRAINING IN THE AUTOMOBILE DRIVING THE PRESENCE OF FORCED IDLE MOTION." International Conference on Technics, Technologies and Education, no. 1 (2018): 286–91. http://dx.doi.org/10.15547/ictte.2018.07.005.

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The work involves a study of the use of the mode of forced idle movement of the car and its necessity at certain moments. Building skills and habits in the process of training of the drivers for the purpose of application of this mode of operation. The opportunities provided by the forced idle mode for safer movement, general economy and permanent control on the vehicle. On the basis of the studies, the results are shown in charts and analyzed.

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Kirsanov, Vladimir V., Andrey Y. Izmaylov, Yakov P. Lobachevsky, Oksana A. Tareeva, Sergey N. Strebulyaev, and Roman F. Filonov. "Models and Algorithms of Adaptive Animal Flow Control in Rotary Milking Parlors." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 67, no. 6 (2019): 1465–84. http://dx.doi.org/10.11118/actaun201967061465.

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The study addresses the influence of milking duration of individual cows on the performance of conveyor-like rotary milking parlors and seeks to optimize their operation parameters and operating modes. The observational experiment was conducted in the Zhdanovsky Farm in Nizhny Novgorod Region, Russia. The dairy farm had a herd of 600 cows, divided into 10 groups by physiological characters and milk yield, and operated a 36 point milking parlor. Distribution of milking time of individual cows was studied using statistical analysis methods. The cyclogram of parlor operation and the functional co

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Ullah, Md Rahamat, Selim Molla, Iqtiar Md Siddique, Anamika Ahmed Siddique, and Md Minhajul Abedin. "Utilization of Johnson's Algorithm for Enhancing Scheduling Efficiency and Identifying the Best Operation Sequence: An Illustrative Scenario." Journal of Recent Activities in Production 8, no. 3 (2023): 11–20. http://dx.doi.org/10.46610/jorap.2023.v08i03.002.

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This study's primary objective is the enhancement of makespan optimization, thereby minimizing unproductive time for both machinery and tasks. The research employs a case study methodology, focusing on job scheduling within anElectronicsmanufacturing facility, with a particular emphasis on resource availability. It implements Johnson's algorithm and its expanded versions designed for both two-machine and three-machine scenarios within the context of flow shop scheduling. The principal aim is to identify optimal sequences for scheduling. Within this framework, the investigation computes idle ti

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Bernatt, Jakub. "Squirrel cage induction motors with idle bars." Archives of Electrical Engineering 59, no. 1-2 (2010): 79–86. http://dx.doi.org/10.2478/s10171-010-0006-z.

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Squirrel cage induction motors with idle bars The paper describes high output induction motors driving large applications of heavy starting conditions. Heavy start is characterised by long accelerating time and occures in drives of hudge inertia torque, esspecially when performed at full load. The reliable operation of the motors depends on proper design and quality of rotor's cage. The aspects of thermal behaviour and electrodynamic forces have to be considered during the design of the motor for hard working conditions. In the paper the rotor with idle bars is investigated.

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Lin, Kuan-Po, and Hung-Yu Wei. "Paging and Location Management in IEEE 802.16j Multihop Relay Network." Journal of Computer Systems, Networks, and Communications 2010 (2010): 1–15. http://dx.doi.org/10.1155/2010/916569.

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IEEE 802.16j is an emerging wireless broadband networking standard that integrates infrastructure base stations with multihop relay technology. Based on the idle mode operation in IEEE 802.16j, we propose a novel location management and paging scheme. It integrates the paging area-based and the timer-based location update mechanism. In paging area-based scheme, an idle mode mobile station updates when it moves to a new paging area. In timer-based scheme, an idle mode MS updates when the location update timer expires. In this work, we formulate the mathematical model to evaluate the performance

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Kustyshev, A. V. "IDLE WELLS REHABILITATION IN THE FIELDS OF EXTREME NORTH." Oil and Gas Studies, no. 3 (June 30, 2015): 66–71. http://dx.doi.org/10.31660/0445-0108-2015-3-66-71.

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Кочергин, Виктор Иванович, та Евгений Сергеевич Зинченко. "Повышение эффективности работы энергетических установок в режиме холостого хода". Вестник Инженерной школы ДВФУ, № 4(57) (15 жовтня 2024): 83–92. http://dx.doi.org/10.24866/2227-6858/2023-4/83-92.

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Цель настоящего исследования – анализ особенностей эксплуатации дизель-генераторных судовых энергетических установок и вопросов повышения их энергетической эффективности в режимах холостого хода и малых нагрузок. Дизель-генераторы в последнее время широко используются в составе вспомогательных и основных судовых энергетических установок. Работа судового дизеля в режимах холостого хода и малых нагрузок характеризуется увеличением расхода топлива и повышенными выбросами вредных веществ в атмосферу. Вопросам минимизации негативного влияния данных режимов на технико-экономические показатели энерге

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Srinivasan, S., S. Manikandan, D. Govindaswamy, and K. Ravichandran. "A Modulation Technique for Sensorless Control of Switched Reluctance Motor." Defence Science Journal 69, no. 3 (2019): 223–29. http://dx.doi.org/10.14429/dsj.69.14409.

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The switched reluctance motor (SRM) uniquely bears several merits with respect to other motor configurations. Especially, the construction of the rotor is simple in the sense that it neither contains copper not contains permanent magnets. Because of this construction, likelihood of rotor’s failure is less than the other motor configurations. This makes this motor more suitable for harsh environments. On the flip side, this motor cannot directly operate with AC or DC power source and needs electronic commutation. For commutation, the information on instantaneous orientation of the rotor is esse

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Senetskaya, D. O., and A. V. Senetskyi. "Determining the Idle Mode of the Last Stages of Powerful Steam Turbines for Wet Steam Area." Problems of the Regional Energetics, no. 3(63) (July 2024): 118–29. http://dx.doi.org/10.52254/1857-0070.2024.3-63.10.

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Increasingly, low-capacity electricity generating installations using renewable energy sources are becoming widespread. They bring imbalance to the energy system. Frequency control is carried out using powerful steam turbines. To ensure reliable and efficient operation of powerful steam turbines, it is important to understand the processes occurring in the last stages of the low pres-sure cylinder. At present, there is no approach to determining the idle mode (the moment of transition from the generation of mechanical power to its consumption) for large fanning stages. The purpose of the work

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Kotsur, М. І. "STUDY OF ELECTROMAGNETIC AND MECHANICAL PROCESSES OF AN INDUCTION-SYNCHRONOUS ELECTROMECHANICAL CONVERTER IN IDLE MODE." Tekhnichna Elektrodynamika 2024, no. 2 (2024): 62–71. http://dx.doi.org/10.15407/techned2024.02.062.

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A two-dimensional circuit-field model of non-stationary electromagnetic and mechanical processes of an induction-synchronous electromechanical converter has been developed. It allows establishing the relationship between electro-magnetic processes in the circuit and 2D-field parts of the model, taking into account the features of the construction of its armature and rotor windings through their schematic implementation, and ensuring switching with elements of con-ventional and semiconductor power systems. Electromagnetic and mechanical processes in idle mode have been inves-tigated using numer

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Chol, Michael. "Vibration-based NVH control during idle operation of an automobile powertrain." Journal of the Acoustical Society of America 122, no. 2 (2007): 700. http://dx.doi.org/10.1121/1.2771319.

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Wang, Li, and Xiaoning Zhu. "Rail Mounted Gantry Crane Scheduling Optimization in Railway Container Terminal Based on Hybrid Handling Mode." Computational Intelligence and Neuroscience 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/682486.

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Rail mounted gantry crane (RMGC) scheduling is important in reducing makespan of handling operation and improving container handling efficiency. In this paper, we present an RMGC scheduling optimization model, whose objective is to determine an optimization handling sequence in order to minimize RMGC idle load time in handling tasks. An ant colony optimization is proposed to obtain near optimal solutions. Computational experiments on a specific railway container terminal are conducted to illustrate the proposed model and solution algorithm. The results show that the proposed method is effectiv

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Vulpio, Alessandro, Alessio Suman, Nicola Casari, and Michele Pinelli. "Dust Ingestion in a Rotorcraft Engine Compressor: Experimental and Numerical Study of the Fouling Rate." Aerospace 8, no. 3 (2021): 81. http://dx.doi.org/10.3390/aerospace8030081.

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Helicopters often operate in dusty sites, ingesting huge amounts of contaminants during landing, take-off, hover-taxi, and ground operations. In specific locations, the downwash of the rotor may spread soil particles from the ground into the environment and, once ingested by the engine, may stick to the compressor airfoils. In the present work, the Allison 250 C18 engine’s multistage axial-flow compressor is employed to study the fouling rate on rotor blades and stator vanes from both numerical and experimental standpoints. The compressor is operated in a typical ground-idle operation, in term

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Li, Qing, Fengxiang Qiao, Lei Yu, Shuyan Chen, and Tiezhu Li. "Digital Signal Processing Approach to Identify the Boundary of Vehicle Idle Status during Operation." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 25 (2018): 35–45. http://dx.doi.org/10.1177/0361198118791614.

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The MOVES is a tool to estimate on- and off-road emissions, in which 23 operating mode identification bins were defined based on vehicles’ specific power, speed, and acceleration. Bin 1 indicates an idling mode with the speed within 1.0 mph. However, the speed boundary in an earlier model of MOBILE 6.2 was 2.5 mph. Neither the change in the idling definition of the two models nor the speed boundary were investigated and discussed. This study proposed a method to theoretically redefine the idle boundary by characterizing vehicle emission rates. Vehicle speeds close to 0 mph were carefully studi

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Poppe, Olga, Qun Guo, Willis Lang, et al. "Moneyball." Proceedings of the VLDB Endowment 15, no. 6 (2022): 1279–87. http://dx.doi.org/10.14778/3514061.3514073.

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Microsoft Azure SQL Database is among the leading relational database service providers in the cloud. Serverless compute automatically scales resources based on workload demand. When a database becomes idle its resources are reclaimed. When activity returns, resources are resumed. Customers pay only for resources they used. However, scaling is currently merely reactive, not proactive, according to customers' workloads. Therefore, resources may not be immediately available when a customer comes back online after a prolonged idle period. In this work, we focus on reducing this delay in resource

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Amirinasab Nasab, Mehdi, Shahaboddin Shamshirband, Anthony Chronopoulos, Amir Mosavi, and Narjes Nabipour. "Energy-Efficient Method for Wireless Sensor Networks Low-Power Radio Operation in Internet of Things." Electronics 9, no. 2 (2020): 320. http://dx.doi.org/10.3390/electronics9020320.

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The radio operation in wireless sensor networks (WSN) in Internet of Things (IoT) applications is the most common source for power consumption. Consequently, recognizing and controlling the factors affecting radio operation can be valuable for managing the node power consumption. Among essential factors affecting radio operation, the time spent for checking the radio is of utmost importance for monitoring power consumption. It can lead to false WakeUp or idle listening in radio duty cycles and ContikiMAC. ContikiMAC is a low-power radio duty-cycle protocol in Contiki OS used in WakeUp mode, as

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Zhang, Fan, Senjing Yao, Xiankai Zeng, et al. "Operation Strategy for Electric Vehicle Battery Swap Station Cluster Participating in Frequency Regulation Service." Processes 9, no. 9 (2021): 1513. http://dx.doi.org/10.3390/pr9091513.

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Idle batteries in the battery swap stations (BSSs) of electric vehicles (EVs) can be used as regulated power sources. Considering the battery swap service and the frequency regulation (FR) service, this paper establishes a model of BSS cluster participating in the FR service and formulates a two-stage operation strategy. The day-ahead strategy arranges the battery charging plan and FR plan with the goal of the optimal operating economy on the next day. The intra-day strategy aims at maximizing the satisfaction degree of battery swap, minimizing the loss of planned revenue and ensuring the coor

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Gosala, Dheeraj B., Aswin K. Ramesh, Cody M. Allen, et al. "Diesel engine aftertreatment warm-up through early exhaust valve opening and internal exhaust gas recirculation during idle operation." International Journal of Engine Research 19, no. 7 (2017): 758–73. http://dx.doi.org/10.1177/1468087417730240.

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A large fraction of diesel engine tailpipe NOx emissions are emitted before the aftertreatment components reach effective operating temperatures. As a result, it is essential to develop technologies to accelerate initial aftertreatment system warm-up. This study investigates the use of early exhaust valve opening (EEVO) and its combination with negative valve overlap to achieve internal exhaust gas recirculation (iEGR), for aftertreatment thermal management, both at steady state loaded idle operation and over a heavy-duty federal test procedure (HD-FTP) drive cycle. The results demonstrate tha

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Lee, Sangheon, Gyupin Moon, Chanyong Lee, Hyunwoo Kim, Donghyeok An, and Donghyun Kang. "Check-QZP: A Lightweight Checkpoint Mechanism for Deep Learning Frameworks." Applied Sciences 14, no. 19 (2024): 8848. http://dx.doi.org/10.3390/app14198848.

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In deep learning (DL) frameworks, a checkpoint operation is widely used to store intermediate variable values (e.g., weights, biases, and gradients) on storage media. This operation helps to reduce the recovery time of running a machine learning (ML) model after sudden power failures or random crashes. However, the checkpoint operation can stall the overall training step of the running model and waste expensive hardware resources by leaving the GPU in idle sleep during the checkpoint operation. In addition, the completion time of the checkpoint operation is unpredictable in cloud server enviro

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Dutta, Praveen, Sumeet Singh Jasial, and Shailja Sinha. "Implementation of QR code for Operation & Maintenance (O&M) manuals for machines at project sites." Journal of Statistics and Management Systems 26, no. 5 (2023): 1195–200. http://dx.doi.org/10.47974/jsms-1172.

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Operation & Maintenance Manuals have generally covered Technical Literatures about the Machine and either are stored in Hard Copies in Customer office / site archives or stored in Computers in soft forms. After a long period generally, the accessibility of these documents becomes difficult due to change of site persons/change of office/hard disk crash, etc. which increase the difficulty of retrieval of these documents & increase the machine idle time & customer dissatisfaction. The subject article covers aspects of the Implementation of Latest Digitalization effort of converting th

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Bolshanin, Georgy. "Idle operation of two-wire transmission lines under decreased electric power quality." Energy-Safety and Energy-Economy 5 (October 2017): 50–54. http://dx.doi.org/10.18635/2071-2219-2017-5-50-54.

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Kang, Kyunghwa. "A Study on the Utilization and Operation of Idle Space in France." Journal of Humanities and Social sciences 21 12, no. 6 (2021): 2375–86. http://dx.doi.org/10.22143/hss21.12.6.167.

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Carrone, Andrea Papu, Jeppe Rich, and David Watling. "Analysis of car sharing operation area performance: An idle time prediction approach." Transportation Research Part A: Policy and Practice 190 (December 2024): 104241. http://dx.doi.org/10.1016/j.tra.2024.104241.

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Kim, Beomjun, and Myungsuk Kim. "LazyRS: Improving the Performance and Reliability of High-Capacity TLC/QLC Flash-Based Storage Systems Using Lazy Reprogramming." Electronics 12, no. 4 (2023): 843. http://dx.doi.org/10.3390/electronics12040843.

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We propose a new NAND programming scheme called the lazy reprogramming scheme (LazyRS) which divides a program operation into two stages, where the second stage is delayed until it is needed. LazyRS optimizes the program latency by skipping the second stage if it is not required. An idle interval before the second stage improves the flash reliability as well. To maximize the benefit of LazyRS, a LazyRS-aware FTL adjusts the length of an idle interval dynamically over changing workload characteristics. The experimental results show that the LazyRS-aware FTL can efficiently improve the write thr

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Farrahi, Amir H., Gustavo E. Téllez, and Majid Sarrafzadeh. "Exploiting Sleep Mode for Memory Partitioning and Other Applications." VLSI Design 7, no. 3 (1998): 271–87. http://dx.doi.org/10.1155/1998/50491.

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Sleep mode operation and exploiting it to minimize the average power consumption are of great importance in modern VLSI circuits. In general, sleep mode refers to the mode in which part(s) of the system are idle. In this paper, we study the problem of partitioning a circuit according to the activity patterns of its elements such that circuit elements with similar activity patterns are packed into the same partition. Then a partition can be placed in sleep mode during the time intervals all elements contained in that partition are idle. We formulate the partitioning problem to exploit sleep mod

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Joachim, Kurzke. "Starting and windmilling simulations using compressor and turbine maps." Journal of the Global Power and Propulsion Society 7 (March 2, 2023): 58–70. http://dx.doi.org/10.33737/jgpps/159372.

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Starting and windmilling simulations with a normal gas turbine performance program require extended compressor and turbine maps which include sub-idle corrected speeds down to say 5–10% of the design value. During such simulations certain specific phenomena which are insignificant in the normal operating range between idle and full power must be considered. For example, while starting a low bypass ratio mixed flow turbofan, flow reversal in the bypass duct can occur. This paper illustrates a general understanding of what happens from when the starter is activated to when stabilized idle operat

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Yu, JiangYou, Le Cao, Hao Fu, and Jun Guo. "A method for optimizing stencil cleaning time in solder paste printing process." Soldering & Surface Mount Technology 31, no. 4 (2019): 233–39. http://dx.doi.org/10.1108/ssmt-10-2018-0037.

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PurposeStencil cleaning is an important operation in solder paste printing process. Frequent cleaning may interrupt printing process and increase idle time, as well as loss for performing cleaning. This paper aims to propose a method to optimize the stencil cleaning time and reduce unnecessary cleaning operations and losses.Design/methodology/approachThis paper uses a discrete-time, discrete-state homogeneous Markov chain to model the stencil printing performance degradation process, and the quality loss during the stencil printing process is estimated based on this degradation model. A stenci

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Ivanov, Igor. "Diesel efficiency improvement strategy." E3S Web of Conferences 210 (2020): 11010. http://dx.doi.org/10.1051/e3sconf/202021011010.

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This thesis presents the author's method of analyzing the indicator diagrams of a diesel engine at idle mode, which have a two-peak nature, based on the theory of catastrophes in order to improve the operation process in this mode, and offers suggestions for improving this process.

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Li, Ye Ni, Shui Xuan Chen, and Hu Xiu Xu. "Speed Control System Research on Hydraulic Torque Forklift." Applied Mechanics and Materials 666 (October 2014): 188–93. http://dx.doi.org/10.4028/www.scientific.net/amm.666.188.

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By researching the characteristics of hydraulic torque forklifts, developed a device which achieved inching function. It can detect position of the handle, using Delta PLC controlled stepper motor driven screw movement, to achieve the control of the engine speed, and modify the control parameters via touch-screen on-site commissioning, to achieve a truck at idle operation, through the manipulation of the handle can Smooth and stable pan, lift or tilt operation, making operation more convenient forklift and reduces the operator's labor intensity, a high value market applications.

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