Relevant bibliographies by topics / Optimum configuration

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Optimum configuration'

Author: Grafiati
Published: 3 June 2025
Last updated: 20 July 2025

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Journal articles on the topic "Optimum configuration"

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Suastika, Ketut, Putri Virliani, and D. Aryawan Wasis. "Submarine rudder stern-plane configuration for optimum manoeuvring." MATEC Web of Conferences 177 (2018): 01024. http://dx.doi.org/10.1051/matecconf/201817701024.

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The purpose of the present study is to investigate submarine rudder stern-plane configuration to obtain optimum manoeuvring characteristics. Three configurations are investigated: +, x and y configuration. The equations of motions were derived with the external forces and moments consist of contributions due to the hydrostatics, hydrodynamics and propeller thrust. To obtain the hydrodynamic coefficients and the hydrodynamic derivatives, the lift and drag were calculated using computational fluid dynamics (CFD). The equations of motions were numerically integrated using Eulerian method to obtain the turning circle. Results of the calculations show that the x-configuration gives the smallest tactical diameter, transfer and advance, which is considered as the most optimum rudder stern-plane configuration.
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Lee, Alex C. H., Ramy R. R. Fahmy, and George B. Hanna. "Objective Evidence for Optimum Knot Configuration." World Journal of Surgery 32, no. 12 (2008): 2736–41. http://dx.doi.org/10.1007/s00268-008-9764-9.

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Bánky, Tamás, Bálint Horváth, and Tibor Berceli. "Optimum configuration of multiloop optoelectronic oscillators." Journal of the Optical Society of America B 23, no. 7 (2006): 1371. http://dx.doi.org/10.1364/josab.23.001371.

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Hanna, S. Y. "Optimum Waterline Geometry for Deepwater Platforms." Journal of Offshore Mechanics and Arctic Engineering 111, no. 3 (1989): 177–82. http://dx.doi.org/10.1115/1.3257145.

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The dynamic behavior of deepwater platforms can be improved by maximizing wave force cancellation at their natural frequencies of interest. This can be achieved by optimizing both the platform waterline geometry, and the structural dynamic characteristics. This study outlines a simplified procedure by which different water-line geometries for deepwater structures can be evaluated. This procedure considers effect of wave directionality. Comparison between different waterline geometries is performed. Results are presented for four, six, eight, sixteen-column, or leg, configurations, as well as for columns (or legs) located in Triangle, Pentagon, and Hexagon configurations. For each configuration, reduction in the external loading as a function of frequency is quantified. Procedures and results presented in this paper can be easily used in selecting optimum platform waterline geometry, leg spacings, and conductor locations in early design stages.
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Venkataramanan, Vijaikrishnan, Ramakrishnan Madhavaneswaran, and Siva Shanmugam. "Steady state analysis of regular hollow pyramidal radiating fin with triangular cross-section." Thermal Science 19, no. 1 (2015): 59–68. http://dx.doi.org/10.2298/tsci120617029v.

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A new configuration for space radiator is proposed introducing a fin of regular hollow pyramidal shape with triangular cross section, giving a higher improvement in heat loss per unit mass than that of other corresponding configurations previously proposed under same working conditions. The significance of the present configuration and its advantage over other regular hollow configurations are discussed and effect of various design parameters on heat transfer is analyzed in presence of radiation interaction with an isothermal base attached to it. Optimum parameters are identified for which improvement in heat loss per unit mass is the maximum. It is found that the fin efficiency decreases with increase in the emissivity & height of the fin and increases with increase in thickness & top radius of the fin. Correlations are presented for optimum design parameters, optimum improvement in heat loss per unit mass and fin efficiency.
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Sharip, Mohd R. M., Ahmed M. A. Haidar, and Aaron C. Jimel. "Optimum Configuration of Solar PV Topologies for DC Microgrid Connected to the Longhouse Communities in Sarawak, Malaysia." International Journal of Photoenergy 2019 (February 19, 2019): 1–13. http://dx.doi.org/10.1155/2019/2657265.

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In the past few years, the prime focus of supplying electricity to the longhouse communities in the rural areas of Sarawak has been initiated based on the utilization of a single-source microgrid configuration. The existing AC power supply-based solar photovoltaic (PV) systems in these areas pose many problems, mainly owing to the stages of conversion, energy losses, and the quality of power transfer. As the solar PV system is a DC source and most of the appliances in longhouse communities could be operated using DC source, an opportunity to design a microgrid with high reliability and efficiency would be achieved by the implementation of an optimal DC microgrid configuration. With this aim, the paper proposes a multiple-source DC microgrid configuration for the longhouse communities in Sarawak. Initially, a framework has been developed to design simulation models for both microgrid configurations (single and multiple sources) using MATLAB Simulink. The configuration of each system consists of a solar PV and energy storage to form a standalone microgrid. Due to the change in system configuration of DC microgrid, in the modeling approach, the standard power flow equations are modified to include solely the DC parameters. To validate the proposed configuration with the associated modeling approach in terms of the power flow reliability, system efficiency, and power-voltage curve, an experimental setup representing the Simulink model has been designed for each standalone microgrid configuration. The configurations have been assessed in the same location with different daily weather conditions. The obtained simulation and experimental results confirm that the proposed configuration of multiple sources is more reliable and efficient than the existing single-source configuration.
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Fajar, Angga S., and Akhmad Aminullah. "Optimum seismic performance estimation of integrated multiple steel pipes bridge pier connected by shear panel damper with ANN method." MATEC Web of Conferences 258 (2019): 02011. http://dx.doi.org/10.1051/matecconf/201925802011.

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This paper discusses the optimum seismic performance estimation analysis of the integrated multiple steel pipes bridge pier connected by shear panel damper (SPD). The optimization result to be expected to result in an easier structural design for the practical engineer. In this study, 405 different structural configurations with 35 and more variations of SPD thickness to be analyzed by non-linear static cyclic in order to quantify its energy dissipation. The optimum energy dissipation to be assumed as analogous with best objective seismic perfor- mance in order avoiding time consumption of numerical analysis. Furthermore, the SPD’s thickness related optimum energy dissipation of each structural configuration was successfully predicted by multi-parameter es- timation analysis with the artificial neural network (ANN) method. As the result, the R-value and the average error value of the estimated optimum SPD’s thickness compared with analytical result were 0.988 and 2.38%, respectively. With the estimated empirical equation result, the practical engineer could determine the structural configuration in the optimum seismic performance easily.
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Youssef, Mahmoud A. M., Abdelrahman M. Mohamed, Yaser A. Khalaf, and Yehia S. Mohamed. "Investigation of Small-Scale Photovoltaic Systems for Optimum Performance under Partial Shading Conditions." Sustainability 14, no. 6 (2022): 3681. http://dx.doi.org/10.3390/su14063681.

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Not only are small photovoltaic (PV) systems widely used in poor countries and rural areas where the electrical loads are low but they can also be integrated into the national electricity grid to save electricity costs and reduce CO2 emissions. Partial shading (PS) is one of the phenomena that leads to a sharp decrease in the performance of PV systems. This study provides a comprehensive performance investigation of small systems (consisting of ten modules or fewer) under all possible shading patterns that result from one shading level (300 W/m2 is chosen). The most common configurations are considered for which a performance comparison is presented. Five small systems of different sizes are studied under PS. A new simplifying method is proposed to identify the distinct PS patterns under study. Consequently, the number of cases to be studied is significantly reduced from 1862 to 100 cases only. The study is conducted using the MATLAB/Simulink® environment. The simulation results demonstrate the most outperformed configuration in each case of PS pattern and the amount of improvement for each configuration. The configurations include static series-parallel (SP), static total-cross-tied (TCT), dynamic switching between SP and TCT, and TCT-reconfiguration. The study provides PV systems’ owners with a set of guidelines to opt for the best configuration of their PV systems. The optimum recommended configuration is TCT reconfiguration, rather than dynamic switching between SP and TCT. The less recommended option, which enjoys simplicity but is still viable, is the static TCT. It outperforms the static SP in most cases of PS patterns.
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Hoeller, Arliones, Richard Demo Souza, Hirley Alves, Onel L. Alcaraz Lopez, Samuel Montejo-Sanchez, and Marcelo Eduardo Pellenz. "Optimum LoRaWAN Configuration Under Wi-SUN Interference." IEEE Access 7 (2019): 170936–48. http://dx.doi.org/10.1109/access.2019.2955750.

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Chang, P. C. Y., K. I. Hopcraft, E. Jakeman, and J. G. Walker. "Optimum configuration for polarization photon correlation spectroscopy." Measurement Science and Technology 13, no. 3 (2002): 341–48. http://dx.doi.org/10.1088/0957-0233/13/3/316.

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Dissertations / Theses on the topic "Optimum configuration"

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Rosendo, Kali M. "Floating Treatment Island configuration for optimum nutrient removal." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119320.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 45-46).<br>Floating Treatment Islands (FTIs) have been studied as a method to mitigate the risks associated with high nutrient levels in contaminated water. The goal of this project was to compare fractional treatment rates by a series of FTIs located at the edge of a channel, allowing the center channel to remain clear. Experiments were performed using a scaled-down model floating treatment island (FTI) with a 19 x 24.5 cm x 10 cm root zone modeled using 3.6 mm diameter dowel rods (n = 75/135 cm 2, low flow blockage) attached to the inside wall of a 1.2 m wide x 16 m long flume. Three cases were considered, with four FTIs spaced at various distances based on the length scale L of the FTI: the closest spacing had each FTI located 2L downstream of the last, the mid-range spacing were placed 4L apart, and the farthest spacing had each FTI 8L past the last. Based on the cross-sectionally averaged flow rates measured at the leading and trailing edges of the root zone, treatment rates within the root zone were estimated using a first-order kinetic model, and an iterative method was used to solve for the fractional treatment by the series of FTIs. This paper explores the effects of various parameters on treatment, including flow rates and velocity recovery, biological uptake rate, and island size. Finally, the researcher evaluated which setup provided the most treatment for a given number of treatment islands. It was found that the 8L spacing provided the best treatment, significantly more than the 4L or 2L spacing for k < 10 day⁻¹ according to the results of a two-sample t-test. For a set of 8L spaced FTIs with an uptake rate of 1 day⁻¹ with a cross-sectional coverage of 13.6%, it would be possible to reduce the upstream nutrient concentration by 25% over a channel length of roughly 3.5 km, 50% over a channel length of 10 km, and 90% over a channel length of approximately 32 km. These treatment rates could have the potential to mitigate the risk of eutrophication in sufficiently long channels.<br>by Kali M. Rosendo.<br>M. Eng.
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Daniels, Geoffrey Philip. "An optimum visual sensor configuration for terrestrial locomotion." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690379.

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Human technological advancement has continually created new opportunities for machinery to automate intensive tasks. However, these machines still need to be delivered and often controlled by humans. Autonomous Ground Vehicles (AGVs) can completely remove the locomotion dependency of these systems on humans, enabling a robotic revolution. The locomotive performance of AGVs is dependent on the quantity and quality of information received about the terrain ahead; for this purpose, vision is by far the most effective sense. Contextual machine vision is a new area of research where fundamental questions such as how to optimise a visual system specification for a locomotive platform to enable fast locomotion are yet to be addressed. In this thesis, abstract mathematical models of a generic vision sensor and generic locomotor platform were developed to investigate the relationship between sensor specification and locomotor performance with respect to a single key parameter, the maximum ground speed. Initially a static AGV model was investigated, before being expanded to include forward motion, thus enabling the maximum dynamic performance of an AGV to be evaluated. The vision sensor model was designed with interchangeable sensor geometries so that the performance of multiple sensor geometries could be compared. Two of the sensor geometries were designed to approximate a digital camera and human eye, while the third removed non-linearities associated with the detector. The optimum specification to enable maximum speed was defined by the geometry of the sensor. The achievable proximity to the optimum is restricted by system resolution. Generally the sensor geometries analogous to a digital camera and human eye outperformed the linearised model, however, this model can be made insensitive to sensor angle which can be advantageous. Optical flow algorithm performance was not directly effected by detector geometry. Although the resolution variation of the non-linearised detectors and locomotion context reduced tracking performance. Simulating pose error on the model with a random or systemic error resulted in the outcome that vision was a requirement for motion estimation, leading to the development of an AGV vision system for human AGVs. The performance of a visually limited, controlled, human AGV, in a virtual reality environment showed a minimum of 500 features was required for good performance at a foot placement task.
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Ngalande, Joshua. "Assessing the optimum operating configuration for multiple chillers at Murdoch University." Thesis, Ngalande, Joshua (2015) Assessing the optimum operating configuration for multiple chillers at Murdoch University. Other thesis, Murdoch University, 2015. https://researchrepository.murdoch.edu.au/id/eprint/30761/.

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This paper endeavours to answer the research question of how to efficiently operate a system of multiple chillers in the most effective combination regime. In the process, a successful method of assessing this has been developed, which has proven that the most effective way to run a multi-configuration chiller scheme is by following two distinct methods. One method deals with a multi-chiller setting that has thermal storage, and the other method deals with a multi-chiller systems without storage. The latter method is discussed more in this paper. The former method is based on other research papers that argue the easiest and most efficient method of running a multi-chiller system is to have thermal storage. This allows a staging regime that can operate any number of chillers at their maximum co-efficiency of performance (COP) or efficiency performance, while either supplying the load or charging the thermal storage. The fact that the chillers can always operate at their maximum point makes this method the most efficient available; however, in some cases there is no thermal storage available and the analysis changes slightly. A detailed analysis of the different methods of staging has been carried out and it proved that the most efficient way of running a multi-configuration setup chiller system is to run the target load closest to the next nearest chiller configuration that can supply that load. An algorithm and system has been developed on the best way to do this, and further work on how computational resources can be exploited to do this more easily is discussed.
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Zhang, Yi. "Synthesis of optimum HVAC system configurations by evolutionary algorithm." Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/7714.

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The HVAC system configuration is a conceptual design of the HVAC system, including the employed components, the topology of the airflow network, and the control strategy with set points. Selection of HVAC system configuration is normally done in the early stage of the design process. The configuration design, however, has significant impacts on the performance of the final system. This thesis describes the development of the design synthesis of optimal HVAC system configurations by Evolutionary Algorithm. In this research, the HVAC system configuration design synthesis has been formulated as an optimisation problem, in which, the component set of the configuration, the topology of the airflow network, and the control set points for the assumed supervisory control strategy, are the optimisation variables. Psychrometrics-based configuration model has been developed in order to evaluate the optimisation objective of minimising the annual energy consumption of the HVAC system. The optimisation is also subjected to a number of design constraints, including the connectivity of the topology, the performance limitations of the components, and the design requirements for the air-conditioned zones. The configuration synthesis problem is a multi-level optimisation problem. The topology depends on the set of selected components, whereas the search space of the control set points changes with the different components and topology. On the other hand, the performance of the configuration is assessed with its optimum operation; therefore the control set points have to be optimised for each configuration solution, before the optimum configuration can be identified. In this research, a simultaneous evolutionary approach has been developed. All optimisation variables of the configuration have been enwded into an integrated genotypic data structure. Evolutionary operators have also been developed to search the topological space (for the optimum topology) and parametric space (for the optimal control set points) at the same time. The performance of the developed approach has been validated with example optimisation problems. It is concluded that the implemented evolutionary algorithm has been able to find (near) optimum solutions for various design problems, though multiple trials may be required. The limitations of this approach and the direction of future development have been discussed.
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Ozturk, Fatih Mehmet. "Optimum Design Of Multistep Spur Gearbox." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606749/index.pdf.

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Optimum design of multistep gearbox, since many high-performance power transmission applications (e.g., automotive, space industry) require compact volume, has become an important interest area. This design application includes more complicated problems that are not taken into account while designing single stage gear drives. Design applications are generally made by trial and error methods depending on the experience and the intuition of the designer. In this study, using Visual Basic 6.0, an interactive program is developed for designing multistep involute standard and nonstandard spur gearbox according to the American Gear Manufacturers Association (AGMA) Standards 218.01 and 2001- B88. All the equations for calculating the pitting resistance geometry factor I, and the bending strength geometry factor J, are valid for external spur gears that are generated by rack-type tools (rack cutters or hobs). The program is made for twostage to six-stage gear drives, which are commonly used in the industry. Compactness of gear pairs and gearbox, and equality of factor of safety against bending failure is taken as the design objective. By considering the total required gear ratio, the number of reduction stages is input by the user. Gear ratios of every stage is distributed to the stages according to the total gear ratio that satisfies the required precision (from &plusmn<br>0.1 to &plusmn<br>0.00001 on overall gear ratio) depending on the user selected constraints (unequal gear ratio for every stage, noninteger gear ratio e.g.). Dimensional design is determined by considering bending stress, pitting stress, and involute interference constraints. These steps are carried out iteratively until a desirable solution is acquired. The necessary parameters for configuration design such as number of teeth, module, addendum modification coefficient, are selected from previously determined gear pairs that satisfies the constraints by user interaction considering the performance criterion from the developed program. The positions of gears and shafts are determined automatically in order to keep the volume of gearbox as minimum while satisfying the nonlinear spatial constraints (center distance constraint for proper meshing of gear pairs, face distance constraint for proper assembly of pinion and gear having same shaft, gear interference constraint for preventing interferences between gears, shaft interference constraint for preventing interferences between gears and shafts) by using DLL (Dynamic Link Library) technology of Lingo 8.0 optimization software together with Visual Basic 6.0. If shaft interference constraint is removed then cantilevered mounting of gear pairs would also be possible, otherwise the gears should be mounted between bearings. Visual output of assembly is made by using Autodesk Inventor 7.0, automatically by the program.
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Lounsbury, Robert Lee. "Optimum antenna configuration for maximizing access point range of an IEEE 802.11 wireless mesh network in support of multi-mission operations relative to hastily formed scalable deployments." Thesis, Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion-image.exe/07Sep%5FLounsbury.pdf.

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Thesis (M.S. in Systems Technology (Command, Control, and Communications (C3)))--Naval Postgraduate School, September 2007.<br>Thesis Advisor(s): Ehlert, James. "September 2007." Description based on title screen as viewed on Oct. 23, 2007. Includes bibliographical references (p. 85-86). Also available in print.
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Lounsbury, Jr Robert L. "Optimum Antenna Configuration for Maximizing Access Point Range of an IEEE 802.11 Wireless Mesh Network in Support of Multi-Mission Operations Relative to Hastily Formed Scalable Deployments." Ft. Belvoir : Defense Technical Information Center, 2007. http://handle.dtic.mil/100.2/ADA474138.

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Smith, Jonathan Burke. "Optimum hybrid vehicle configurations for heavy duty applications." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=1985.

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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains viii, 109 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 71-72).
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Tanil, Cagatay. "Optimal External Configuration Design Of Missiles." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610873/index.pdf.

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The main area of emphasis in this study is to investigate the methods and technology for aerodynamic configuration sizing of missiles and to develop a software platform in MATLAB&reg<br>environment as a design tool which has an ability of optimizing the external configuration of missiles for a set of flight requirements specified by the user through a graphical user interface. A genetic algorithm based optimization tool is prepared by MATLAB is expected to help the designer to find out the best external geometry candidates in the conceptual design stage. Missile DATCOM software package is employed to predict the aerodynamic coefficients needed in finding the performance merits of a missile for each external geometry candidate by integrating its dynamic equations of motion. Numerous external geometry candidates are rapidly eliminated according to objectives and constraints specified by designers, which provide necessary information in preliminary design. In this elimination, the external geometry candidates are graded according to their flight performances in order to discover an optimum solution. In the conceptual design, the most important performance objectives related to the external geometry of a missile are range, speed, maneuverability, and control effectiveness. These objectives are directly related to the equations of motion of the missile, concluding that the speed and flight range are related to the total mass and the drag-to-lift ratio acting on missile. Also, maneuverability depends on the normal force acting on missile body and mass whereas the control effectiveness is affected by pitching moment and mass moment of inertia of missile. All of the flight performance data are obtained by running a two degree-of-freedom simulation. In order to solve the resulting multi-objective optimization problem with a set of constraint of linear and nonlinear nature and in equality and inequality forms, genetic-algorithm-based methods are applied. Hybrid encoding methods in which the integer configuration variables (i.e., nose shape and control type) and real-valued geometrical dimension (i.e., diameter, length) parameters are encoded in the same individual chromosome. An external configuration design tool (EXCON) is developed as a synthesis and external sizing tool for the subsonic cruise missiles. A graphical user interface (GUI), a flight simulator and optimization modules are embedded into the tool. A numerical example, the re-configuration problem of an anti-ship cruise missile Harpoon, is presented to demonstrate the accuracy and feasibility of the conceptual design tool. The optimum external geometries found for different penalty weights of penalty terms in the cost function are compared according to their constraint violations and launch mass values. By means of using EXCON, the launch mass original baseline Harpoon is reduced by approximately 30% without deteriorating the other flight performance characteristics of the original Harpoon.
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Gruber, Elliott Ross. "Optimal configuration of adjustable noise suppressors." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47616.

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Noise generated by fluid power applications can be treated using bladder-style suppressors, and an optimal operating condition for these devices is sought in this thesis. Bladder-style suppressors employ a compliant nitrogen-charged bladder to create an impedance change within the system, reflecting the noise back to the source and preventing it from propagating downstream. The noise in a hydraulic system is created by a pump, the flow source in a hydraulic system, and can be separated into three categories: fluid-borne noise, structure-borne noise and airborne noise. Fluid-borne noise places addition stress on sealing surfaces, potentially causing leaks. Airborne noise can be uncomfortable, even hazardous depending on the level. Bladder-style suppressors primarily treat fluid-borne noise; however, it is seen in the literature that fluid-borne noise is the cause of structure-borne and airborne noise. This thesis presents an optimization method for finding the optimal charge pressure for implementation with a given system operating over a broad range of system pressures. The optimization weights suppressor performance by the spectral content of the fluid-borne noise as well as the duty cycle of the system. A single charge pressure works well over a small range of system pressures, though many fluid power applications operate over a larger range of system pressure than the usable range of a suppressor. For systems operating over an extremely broad pressure range, two suppressors charged to different pressures are used to treat the noise in the entire system pressure range. To determine suppressor performance experimental measurements were performed, and models developed, of the transmission loss of this type of device. A multi-microphone method using transfer function relationships between six sensors determines the transmission loss of the suppressor under test. An equivalent fluid model modeling the wave behavior both upstream and downstream, as well as within the suppressor, was created to predict suppressor transmission loss. Optimal configurations are found for a set of system pressures, charge pressures and duty cycles. Analysis of the results shows the time weighting has a more significant impact on the optimum charge pressure than the frequency weighting, as shown by duty cycles considered in this thesis. In addition, all charge pressures selected as optimal for either single suppressor optimizations or double suppressor optimizations, exhibit the highest transmission loss for a single system pressure in the pressure duty cycle for a simulated machine.
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Books on the topic "Optimum configuration"

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Powe, Neil. Is there an optimum configuration of settlement sizes? Countryside Change Unit, Dept. of Agricultural Economics & Food Marketing, University of Newcastle upon Tyne, 1993.

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Bejan, Adrian, and Giuseppe Grazzini, eds. Shape and Thermodynamics. Firenze University Press, 2008. http://dx.doi.org/10.36253/978-88-8453-836-9.

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Shape and Thermodynamics is a two-day international Workshop focused on the Constructal Theory of generation of configuration in nature and engineering. From the early developments related to tree configurations for the cooling of electronics, today Constructal theory is being applied to conceptual design of transportation net-works, river basins, living bodies, building materials and many other flow systems. Constructal theory is also enriching thermo-dynamics, from basic theory to design and optimization. This theory approaches design "as science", with the generation of configuration regarded as a phenomenon of all physics, based on principle (the Constructal law). For example, Constructal Theory contributes to the evolution of fuel cells, in the design of cooling channels, the optimal feeding of reactants, etc. Important applications are also found in the design of heat exchangers, district heating networks, etc. The growing scientific literature on Constructal Theory has an important Italian component, although further dissemination is timely. Moreover, the relation with other thermodynamic research areas deserves to be explored. Website: Shape and Thermodinamics
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Sommerfeldt, Carl. Optimal hypertorus configurations for water-scale multiprocessor interconnection networks. National Library of Canada, 1990.

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Kumar, R. A novel multireceiver communications system configuration based on optimal estimation theory. Jet Propulsion Laboratory, 1990.

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Nemec, Marian. Optimal shape design of aerodynamic configurations: A Newton-Krylov approach. University of Toronto, Institute for Aerospace Studies, 2003.

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Center, Langley Research, ed. Method for optimal configuration of an ECLSS on the Space Station Freedom. National Aeronautics and Space Administration, Langley Research Center, 1991.

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Street, Deborah J. The construction of optimal stated choice experiments: Theory and methods. Wiley, 2007.

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Street, Deborah J. The construction of optimal stated choice experiments: Theory and methods. Wiley, 2007.

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Iollo, Angelo. Pseudo-time method for optimal shape design using the Euler equations. Institute for Computer Applications in Science and Engineering, 1995.

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Geojoe, Kuruvila, Ta'asan Shlomo, and Institute for Computer Applications in Science and Engineering., eds. Pseudo-time method for optimal shape design using the Euler equations. Institute for Computer Applications in Science and Engineering, NASA Langley Research Center, 1995.

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Book chapters on the topic "Optimum configuration"

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Tomiyama, Takafumi, Daisuke Okai, Masanobu Kusunoki, and Shigetoshi Ohshima. "Study on Optimum Configuration of Microstrip Bandpass Filters." In Advances in Superconductivity X. Springer Japan, 1998. http://dx.doi.org/10.1007/978-4-431-66879-4_274.

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Miki, M., Y. Murotsu, T. Tanaka, and S. Shao. "Reliability Concept Applied to Optimum Configuration of Fibrous Composites." In Lecture Notes in Engineering. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83828-6_14.

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Soodani, Sara, SeyedVahid Hosseini, Mohammad Hakimi, and Mohammad Akhlaghi. "The Effect of Vane Number in Casing Treatment of an Axial-Flow Compressor." In Springer Proceedings in Energy. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30960-1_32.

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AbstractImprovement of the operating range of compressors will help the power and energy plant to work more flexibly to integrate with other energy generation systems. The stall, rotating stall, and resulting surge are the most dominant limiting phenomenon in axial compressor operating envelop. Several active and passive methods have been employed to eliminate occurring of these phenomena and to extend compressors’ stable range. Among these, casing treatment is one of the most useful methods. This study aims to investigate the effect of the number of stationary blades on the performance and stall margin of an axial compressor through numerical simulation. Casing treatments in two different configurations of 33.3 and 53.5% of rotor blade tip exposure and with six different numbers of vanes, 30, 40, 60, 80, 90, and 120, are simulated with computational fluid dynamics in ANSYS software. The numerical simulation is validated with available experimental data. The results reveal that in a high rotor exposure configuration, the highest number of vanes provides the best performance for the compressor. However, in a low exposure configuration, the optimum number of the vanes, 90 for the 33.3% exposure, can be found with the proposed numerical procedure based on stall margin improvement.
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García, David, Jorge Martínez, and Vicent Pla. "Admission Control Policies in Multiservice Cellular Networks: Optimum Configuration and Sensitivity." In Wireless Systems and Mobility in Next Generation Internet. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/978-3-540-31963-4_9.

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Ohkubo, Sadaji, and Kazuhiro Taniwaki. "Optimum Earthquake-Resistant Design of Truss Structures Considering Configuration and Sizing Variables." In Computational Mechanics ’95. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79654-8_32.

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Na, Kyunguk, Dongseop Lee, Hyungi Lee, Kyoungsik Jung, and Hangseok Choi. "Optimum Configuration of Helical Piles with Material Cost Minimized by Harmony Search Algorithm." In Advances in Intelligent Systems and Computing. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-47926-1_32.

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Ravichand, V. Sri Pavan, K. Balaji, and B. P. Nagaraj. "Optimum Hold-Down Configuration Design for Satellite Dual Gimbal Antenna Mechanism Using FEA." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5423-6_36.

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Warth, Marco, M. Bassett, J. Hall, and B. Mahr. "Analysis of the optimum drive-line configuration for a compact-class passenger car for differing usage patterns." In Proceedings. Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-05130-3_81.

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Inadomaru, Momoko, Daisuke Kousaka, Masanobu Kusunoki, Masashi Mukaida, and Shigetoshi Ohshima. "Optimum Configuration of the Antenna to the Dielectric Resonator to Measure the Accurate Surface Resistance of the HTS Films." In Advances in Superconductivity XII. Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-66877-0_318.

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Vadivelan, A., Joisar Priyesh Jitendra, S. Rajagopal, and Vinayak Narayan Kulkarni. "Study of New Approach to Select Optimum Configuration for HAPS Using Discrete-Multi Criteria Decision Making (D-MCDM) Methods." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-1158-4_36.

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Conference papers on the topic "Optimum configuration"

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Chen, Jingxian, Jingtao Ma, Penghui Huang, et al. "A Novel Multi-Channel HRWS-SAR-GMTI Method Based on Optimum Configuration." In IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2024. http://dx.doi.org/10.1109/igarss53475.2024.10641557.

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Abd El Gawad, Moataz A. M., Hesham A. Hegazi, and Sayed M. Metwalli. "Optimum Design of Columns Under Elastic Buckling." In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-70601.

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In this paper, a generalized approach is developed to optimize column configuration subjected to buckling load. The configuration utilizes B-spline contour to provide more freedom to model the column shape. Previous columns in literature use tapered or parabolic tapered for configuration. This work considers hinged-hinged columns of circular solid cross-sectional area. Two sample applications are optimized using Genetic Algorithm with the finite difference method to satisfy the buckling constraints. The length and load are fixed. The objective is to minimize the volume considering the cross-sectional diameters as the design variables. B-Spline quadratic with three and five control points and cubic with five control points are applied. The proposed configuration is compared with tapered and parabolic tapered columns. Results show that continuity provides a better optimum against column buckling than other tapered columns. Even though volume is more than some configurations by about 1.67%, but those configurations would not satisfy buckling constraints over the entire length of the column.
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Zaghloul, Amir I., W. O'Keefe Coburn, and Louis L. Jenkins. "Spherical meander dipole with optimum filling configuration." In 2013 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium). IEEE, 2013. http://dx.doi.org/10.1109/usnc-ursi.2013.6715402.

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Kumar, Atul, and Ajay D. Thakur. "Design issues for optimum solar cell configuration." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5032677.

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Yang, Renshu, Hui Zhang, and Ling Zhao. "Fuzzy Optimum in C100 High Performance Concrete Configuration." In 2010 International Conference on Information Management, Innovation Management and Industrial Engineering (ICIII). IEEE, 2010. http://dx.doi.org/10.1109/iciii.2010.137.

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Arthur, Gordon, Stewart Crawford, Michael O. Lidwell, and Charles Wardrop. "Triple FOV IR sensor: an optimum configuration geometry." In Optical Instrumentation & Systems Design, edited by Joseph J. M. Braat. SPIE, 1996. http://dx.doi.org/10.1117/12.246660.

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Ponce, Rodrigo, Alfonso Serrano-Heredia, and Victor M. Arrizon. "Simplified optimum phase-only configuration for a TNLCD." In Optical Science and Technology, the SPIE 49th Annual Meeting, edited by Khan M. Iftekharuddin and Abdul Ahad S. Awwal. SPIE, 2004. http://dx.doi.org/10.1117/12.559859.

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Christopher J. Roberson and Michael C. Mitchell. "Determination of Optimum Pre-Engineered Steel Freestall Configuration." In 2006 Portland, Oregon, July 9-12, 2006. American Society of Agricultural and Biological Engineers, 2006. http://dx.doi.org/10.13031/2013.20907.

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Zamanifekri, Abolghasem, and A. B. Smolders. "Optimum configuration of focal plane arrays for satellite communication." In 2013 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2013. http://dx.doi.org/10.1109/aps.2013.6711135.

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Hainberger, R., J. Kumasako, K. Nakamura, T. Terahara, H. Onaka, and T. Hoshida. "Optimum span configuration of Raman-amplified dispersion-managed fibers." In Optical Fiber Communication Conference. OSA, 2001. http://dx.doi.org/10.1364/ofc.2001.mi5.

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Reports on the topic "Optimum configuration"

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Papastavrou, Jason D., and Michael Athans. Optimum Configuration for Distributed Teams of Two Decision-Makers. Defense Technical Information Center, 1988. http://dx.doi.org/10.21236/ada199641.

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Seeman, J. T., F. J. Decker, R. L. Holtzapple, and W. L. Spence. Measured optimum BNS damping configuration of the SLC linac. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10114929.

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Yeh, C., J. Chu, and F. I. Shimabukuro. Dielectric Ribbon Waveguide-An Optimum Configuration for Ultralow-Loss Millimeter/Submillimeter Dielectric Waveguide. Defense Technical Information Center, 1991. http://dx.doi.org/10.21236/ada252393.

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Alders, George. L51630A In-Line Detection and Sizing of Stress Corrosion Cracks Using EMAT Ultrasonics - Phase II. Pipeline Research Council International, Inc. (PRCI), 1991. http://dx.doi.org/10.55274/r0011370.

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This report covers that part of a Phase II effort that was completed by Magnasonics, Inc. prior to its liquidation by an adverse court ruling. The Phase I program investigated several configurations of Electromagnetic Acoustic Transducers (EMAT5) to arrive at an optimum approach to the problem of detecting and sizing stress corrosion cracks (SCC) in operating pipelines. Phase II was designed to optimize the most promising configuration by applying it to as many pipe samples as possible. Three pipe samples that contained several colonies of 5CC were made available to Magnasonics and a computerized data collection apparatus was assembled to collect ultrasonic data on the cracked areas. In agreement with the Phase I findings, high order Lamb wave modes were found to reflect strongly from the stress corrosion cracks and thus provide a sensitive detection method. In order to develop sizing capacitates, the crack depths in the colonies of SCC were measured with an eddy current technique and by a new surface acoustic wave method. Good qualitative correlation between the severity of cracking and the amplitude of the reflected ultrasonic energy was observed but real quantitative comparisons must wait on destructive measurement of the actual crack depths. Since only 30% of the funding has been used to date, it is hoped that additional measurements can be made on even more samples in the future.
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De Sanctis, Gianluca, Michael Moos, and Christian Aumayer. Survey of Occupant Load Densities in Retail Buildings. SFPE Foundation, 2019. https://doi.org/10.64167/sama-4ygy.

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Occupant load is a critical factor in egress analyses for fire safety systems. Codified values for occupant load for many occupancies are estimates which frequently do not reflect actual conditions. Further, a full statistical analysis of the data, taking into account its variability, is often not undertaken and reported. For retail buildings in particular, the variability of the occupant load can provide important design information. The project described in this report provides: • an in-depth assessment of currently available people counting systems, identifying strengths and weaknesses. • a review of occupant loads in actual fire incidents in retail buildings to assess optimum measurement intervals and statistical analyses. • an in-depth statistical analysis of occupant data in Swiss retail stores, exploring the impact of occupancy detailed type, building configuration and location.
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Bourn. PR-015-05217-R01 High BTU Gas Effects on Performance and Emissions in a Two-Stroke Integral Engine. Pipeline Research Council International, Inc. (PRCI), 2012. http://dx.doi.org/10.55274/r0010763.

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This report documents an investigation into the effects of high BTU (by volume) fuel gas on performance and emissions from a GMVH-6 two-stroke integral engine compressor operating with the OEM fuel-air curve control strategy. The high BTU fuel gas was blended to simulate imported LNG compositions with high ethane content. The testing was performed by blending pure ethane into typical pipeline natural gas to achieve ethane contents ranging from two to seventeen percent by mole. A laboratory GMVH-6 engine was tested with these various fuel blends in both pre-combustion chamber and open-chamber configurations. Three speed-load conditions were tested with the pre-combustion configuration and one additional speed-load condition was tested with the open-chamber configuration. For each configuration and operating condition, a constant NOX fuel-air curve was mapped and programmed into the engine controller. Ignition timing was set slightly retarded from optimal for each operating speed to provide margin against detonation with the high ethane content blends.
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Wenren, Yonghu, Joon Lim, Luke Allen, Robert Haehnel, and Ian Dettwiler. Helicopter rotor blade planform optimization using parametric design and multi-objective genetic algorithm. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/46261.

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In this paper, an automated framework is presented to perform helicopter rotor blade planform optimization. This framework contains three elements, Dakota, ParBlade, and RCAS. These elements are integrated into an environment control tool, Galaxy Simulation Builder, which is used to carry out the optimization. The main objective of this work is to conduct rotor performance design optimizations for forward flight and hover. The blade design variables manipulated by ParBlade are twist, sweep, and anhedral. The multi-objective genetic algorithm method is used in this study to search for the optimum blade design; the optimization objective is to minimize the rotor power required. Following design parameter substitution, ParBlade generates the modified blade shape and updates the rotor blade properties in the RCAS script before running RCAS. After the RCAS simulations are complete, the desired performance metrics (objectives and constraints) are extracted and returned to the Dakota optimizer. Demonstrative optimization case studies were conducted using a UH-60A main rotor as the base case. Rotor power in hover and forward flight, at advance ratio 𝜇𝜇 = 0.3, are used as objective functions. The results of this study show improvement in rotor power of 6.13% and 8.52% in hover and an advance ratio of 0.3, respectively. This configuration also yields greater reductions in rotor power for high advance ratios, e.g., 12.42% reduction at 𝜇𝜇 = 0.4.
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Al-Qadi, Imad, Egemen Okte, Aravind Ramakrishnan, Qingwen Zhou, and Watheq Sayeh. Truck Platooning on Flexible Pavements in Illinois. Illinois Center for Transportation, 2021. http://dx.doi.org/10.36501/0197-9191/21-010.

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Truck platoons have many benefits over traditional truck mobility. Truck platoons have the potential to improve safety and reduce fuel consumption between 5% and 15%, based on platoon configuration. In Illinois, trucks carry more than 50% of freight tonnage and constitute 25% of the traffic on interstates. Therefore, expected fuel savings would be significant for trucks. Deployment of truck platoons within interstate highways may have a direct effect on flexible pavement performance, as the time between consecutive axle loads (i.e., resting time) is expected to decrease significantly. Moreover, platoons could potentially accelerate pavement damage accumulation due to trucks’ channelized position, decreasing pavement service life and increasing maintenance and rehabilitation costs. The main objective of this project was to quantify the effects of truck platoons on pavements and to provide guidelines to control corresponding potential pavement damage. Finite-element models were utilized to quantify the impact of rest period on pavement damage. Recovered and accumulated strains were predicted by fitting exponential functions to the calculated strain profiles. The results suggested that strain accumulation was negligible at a truck spacing greater that 10 ft. A new methodology to control pavement damage due to truck platoons was introduced. The method optimizes trucks’ lateral positions on the pavements, and an increase in pavement service life could be achieved if all platoons follow this optimization method. Life cycle assessment and life cycle cost analysis were conducted for fully autonomous, human-driven, and mixed-traffic regimes. For example, for an analysis period of 45 years, channelized truck platoons could save life cycle costs and environmental impacts by 28% and 21% compared with human-driven trucks, respectively. Furthermore, optimum truck platoon configuration could reduce life cycle costs and environmental impacts by 48% and 36%, respectively, compared with human-driven trucks. In contrast, channelized traffic could increase pavement roughness, increasing fuel consumption by 15%, even though platooning vehicles still benefit from reduction in air drag forces. Given that truck platoons are expected to be connected only in the first phase, no actions are required by the agency. However, in the second phase when truck platoons are also expected to be autonomous, a protocol for driving trends should be established per the recommendation of this study.
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Kularatne, Dhanushka N., Subhrajit Bhattacharya, and M. Ani Hsieh. Computing Energy Optimal Paths in Time-Varying Flows. Drexel University, 2016. http://dx.doi.org/10.17918/d8b66v.

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Autonomous marine vehicles (AMVs) are typically deployed for long periods of time in the ocean to monitor different physical, chemical, and biological processes. Given their limited energy budgets, it makes sense to consider motion plans that leverage the dynamics of the surrounding flow field so as to minimize energy usage for these vehicles. In this paper, we present two graph search based methods to compute energy optimal paths for AMVs in two-dimensional (2-D) time-varying flows. The novelty of the proposed algorithms lies in a unique discrete graph representation of the 3-D configuration space spanned by the spatio-temporal coordinates. This enables a more efficient traversal through the search space, as opposed to a full search of the spatio-temporal configuration space. Furthermore, the proposed strategy results in solutions that are closer to the global optimal when compared to greedy searches through the spatial coordinates alone. We demonstrate the proposed algorithms by computing optimal energy paths around the Channel Islands in the Santa Barbara bay using time-varying flow field forecasts generated by the Regional Ocean Model System. We verify the accuracy of the computed paths by comparing them with paths computed via an optimal control formulation.
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Onishi, Yasuo, Satoru T. Yokuda, and Catherine A. Majumder. Optimal Elevation and Configuration of Hanford's Double-Shell Tank Waste Mixer Pumps. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/15001049.

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