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Literatura académica sobre el tema "Inverted configuration"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 1 de febrero de 2022

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Artículos de revistas sobre el tema "Inverted configuration"

Rashmi, M. R. y B. Anu. "Cascading of Diode Clamped Multilevel Inverter Boosters for High Voltage Applications". Applied Mechanics and Materials 313-314 (marzo de 2013): 876–81. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.876.

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Nonconventional energy sources are playing important role in meeting current power/energy demands. However these sources cannot provide High voltage/power. For power conditioning and voltage amplification solid state power converters are very much essential. One such approach to obtain high voltage was to use cascaded multilevel inverter but cascaded multilevel inverters require separate DC sources and they cannot be used for regenerative applications. To overcome these limitations, a novel configuration is using diode clamped multilevel inverter is proposed here. . The conditioned DC voltage from photovoltaic cells or fuel cells or batteries is boosted and inverted by means of multistage Multilevel Inverters (MLI). Three different configurations are presented in this paper. From the simulation results of all three configurations, the topology which is found to be better is implemented in the real time. A proto type is developed to boost 40 V input DC to 100 V AC and the experimental results for the same are presented.

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Köber, Helmuth y Marina Stoian. "Comments about the Seismic Behavior of “Inverted Y”- Braced Frames". Key Engineering Materials 763 (febrero de 2018): 106–15. http://dx.doi.org/10.4028/www.scientific.net/kem.763.106.

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Four configurations were analyzed for a ten storey “inverted Y-braced” frame with rigid and/or pined beam/column and diagonal/column connections. All considered frame configurations were sized for the forces produced by the same code seismic design force evaluated according to the in charge Romanian seismic design code. In case of two of the considered configurations, additional potentially plastic zones with reduced member cross-sections were provided along the girders and diagonals of the frame (in order to size clearly by design a global plastic failure mechanism for the “inverted Y-braced” frame). The behavior of each frame configuration during dynamic nonlinear analyses was observed. The steel consumption was estimated for each considered configuration.

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Miller, D. B., R. G. Stockton y C. W. Krueger. "An inverted approach to configuration management". ACM SIGSOFT Software Engineering Notes 14, n.º 7 (noviembre de 1989): 1–4. http://dx.doi.org/10.1145/73337.73338.

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Meynerd Rafael, Jusuf Wilson y Alva Yuventus Lukas. "COMPARISON STUDY OF BRACING CONFIGURATION WITH SHEAR LINK IN ECCENTRICALLY BRACED FRAME STEEL STRUCTURE". Journal Innovation of Civil Engineering (JICE) 1, n.º 1 (2 de noviembre de 2020): 7. http://dx.doi.org/10.33474/jice.v1i1.9058.

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The EBF structural system is identified by the use of bracing and link beams as components that work to receive lateral seismic loads. The position of the link beam makes the EBF system have several choices of bracing configuration; D-Braces, Split K-Braces, V-Braces, Split K & Inverted Split K-Braces, Inverted Y-Braces. Structural analysis was carried out on a 10-story building model for the EBF system with different type of bracing configurations using the ETABS software. All models analyzed according to Indonesian Code (SNI 1729:2015 and SNI 1726:2019) to obtain the structural element. Seismic analysis uses the response spectrum analysis method to obtain the structural response parameters in the EBF system. Result of the analysis for all of bracing configuration are shown that Split K-Braces model has the best response parameters when compared to the MRF system. The lowest value for the parameter is owned by Inverted Y-Braces, although overall it is still larger than the MRF system. The bracing configuration greatly affects the response of EBF system due to the behavior that occurs in the link beam, therefore the selection for type of bracing configuration is also important in the EBF system structure design.

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Gok, K. y S. Inal. "Biomechanical comparison using finite element analysis of different screw configurations in the fixation of femoral neck fractures". Mechanical Sciences 6, n.º 2 (9 de septiembre de 2015): 173–79. http://dx.doi.org/10.5194/ms-6-173-2015.

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Abstract. In this research, biomechanical behaviors of five different configurations of screws used for stabilization of femoral neck fracture under axial loading have been examined, and which configuration is best has been investigated. A point cloud was obtained after scanning the human femoral model with a three dimensional (3-D) scanner, and this point cloud was converted to a 3-D femoral model by Geomagic Studio software. Femoral neck fracture was modeled by SolidWorks software for five different configurations: dual parallel, triple parallel, triangle, inverted triangle and square, and computer-aided numerical analysis of different configurations were carried out by ANSYS Workbench finite element analysis (FEA) software. For each configuration, mesh process, loading status (axial), boundary conditions and material model were applied in finite element analysis software. Von Mises stress values in the upper and lower proximity of the femur and screws were calculated. According to FEA results, it was particularly advantageous to use the fixation type of triangle configuration. The lowest values are found as 223.32 MPa at the lower, 63.34 MPa at the upper proximity and 493.24 MPa at the screws in triangle configuration. This showed that this configuration creates minimum stress at the upper and lower proximity of the fracture line. Clinically, we believe that the lowest stress values which are created by triangle configuration encompass the most advantageous method. In clinical practices, it is believed that using more than three screws does not provide any benefit. Furthermore, the highest stresses are as follows: at upper proximity 394.79 MPa in triple parallel configuration, for lower proximity 651.2 MPa in square configuration and for screw 2459 MPa in inverted triangle.

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Dziubiński, Adam. "CFD Analysis of the Tractor Propulsion Concepts for an Inverted Joined Wing Airplane". Transactions on Aerospace Research 2020, n.º 2 (1 de junio de 2020): 13–26. http://dx.doi.org/10.2478/tar-2020-0007.

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AbstractEfficiency is a crucial parameter for an airplane to reduce both cost of operations and emission of pollutants. There are several airplane concepts that potentially allow for increasing the efficiency. A few of them were not investigated thoroughly enough yet. The inverted joined wing configuration, with the upper wing in front of the lower one is an example of such concept. Therefore, a project consisting of development of an experimental scaled demonstrator, and its wind tunnel and flight testing, was undertaken by consortium: Institute of Aviation, Warsaw University of Technology, Air Force Institute of Technology and a MSP company. Results led to a conclusion, that the inverted joined wing configuration allows to build an airplane with excellent performance, but its advantage against the conventional airplane is marginal because of large trimming drag of the configuration with relatively high position of the thrust vector in pusher configuration. It was applied because the demonstrator was a flying model of manned airplane and the tractor configuration would affect the pilot’s field of observation. However, in case of the UAV, this reason becomes insignificant. Therefore two configurations of tractor propulsion were tested to see, if their performance is better than the performance of original design.

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Li, Jiantao, Menglin Wang, Jianfeng Zhou, Lin Han, Hao Zhang, Chen Li, Lianting Li y Ming Hao. "Optimum Configuration of Cannulated Compression Screws for the Fixation of Unstable Femoral Neck Fractures: Finite Element Analysis Evaluation". BioMed Research International 2018 (9 de diciembre de 2018): 1–10. http://dx.doi.org/10.1155/2018/1271762.

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Objectives. In the present study, we evaluated the mechanical outcome of different configurations of cannulated compression screws for the fixation of Pauwels type III femoral neck fracture and the stress distribution around the holes corresponding to fixation protocol after screws removal. Methods. The Pauwels type III of femoral neck fracture was created in 3-matic software and the models of cannulated compression screws were constructed using UG-NX software. Five fixation systems were assembled to the fracture models. Abaqus software was used to perform the process of finite element analysis. Values of stress distribution, maximum stress, model principal strains of proximal fragment, and stress distribution around the holes of femur model were recorded. Results. Stress of cannulated compression screws was intensely focused on the middle area of the screw near the fragment of each group. Inverted triangle model showed the highest peak stress on screws under different phases of load. Each screw dispersed some stresses, but at least one underwent the peak stress. Fracture model fixed by inverted triangle configuration showed the lowest volume of yielding strain in the proximal fragment. The area of higher stress around the holes was largest after triangle screws removal when compared with other four models. Conclusions. Our study indicated that different cannulated compression screws fixation configurations for the unstable femoral neck fractures showed the different mechanical efficiency. Inverted triangular configuration showed the mechanical advantage and being less likely to cutout. The fixation strategy of triangle configuration was least recommended if patients tended to remove the implants.

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Zhang, Fujun, Xiaowei Xu, Weihua Tang, Jian Zhang, Zuliang Zhuo, Jian Wang, Jin Wang, Zheng Xu y Yongsheng Wang. "Recent development of the inverted configuration organic solar cells". Solar Energy Materials and Solar Cells 95, n.º 7 (julio de 2011): 1785–99. http://dx.doi.org/10.1016/j.solmat.2011.02.002.

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Sensoz, Ersin, Fatih Mehmet Özkal, Volkan Acar y Ferit Cakir. "Finite element analysis of the impact of screw insertion distal to the trochanter minor on the risk of iatrogenic subtrochanteric fracture". Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 232, n.º 8 (20 de julio de 2018): 807–18. http://dx.doi.org/10.1177/0954411918789963.

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Iatrogenic subtrochanteric fractures are rarely encountered after cannulated screw fixation of femoral neck fractures; however, when they do occur, there can be several complications. Many orthopedic surgeons have concerns about the potential for iatrogenic subtrochanteric fractures after screw fixation distal to the trochanter minor; therefore, some surgeons are typically reluctant to perform this procedure. This study focused on the risk of an iatrogenic subtrochanteric fracture after treating femoral neck fractures with cannulated screws. The main purpose of the study was to understand iatrogenic subtrochanteric fractures and evaluate the effects on these fractures of an inverted triangular–shaped configuration for placement of the cannulated screws. A femur bone with an femoral neck fracture at a 40° incline to the horizontal plane was generated along with a representation of a three-dimensional finite element model, and three inverted triangular–shaped configurations for placement of the cannulated screws were investigated using finite element analyses. Statistical results indicated that the occurrence risk of ISF increases when the screw is located distal to the trochanter minor. Moreover, the risk of occurrence of intertrochanteric fracture increases when the screw is located medial to the trochanter minor because of local concentrated stress on the surface of the screw canals. To avoid the vulnerability of the subtrochanteric region, it was found that proximal placement of the screws using the inverted triangular–shaped configuration could yield better results. In addition, the results of this study provide suggestions on improved screw configurations.

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Trentin, João Francisco Silva, Tiago Peghin Cenale, Samuel da Silva y Jean Marcos de Souza Ribeiro. "Attitude control of inverted pendulums using reaction wheels: Comparison between using one and two actuators". Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 234, n.º 3 (29 de junio de 2019): 420–29. http://dx.doi.org/10.1177/0959651819857643.

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The attitude control using reaction wheels as actuators has been one of the most popular ways to stabilize and repel external disturbances in aerospace devices. From the controlled change of the angular momentum rate of change using reaction wheels, it is possible to control the oscillation and direction rates of change of rigid bodies in space. Thus, the main idea of this article is to present a case study with different configurations of the well-known reaction wheel pendulum. The first is based on the classical configuration, and the second, a new one, a pendulum with two reaction wheels. For both configurations, proportional–integral–derivative controllers were designed and experimental devices were built to perform real-time controllers using low-cost hardware. The simulated and experimental results have shown that the pendulums were controlled using a simple controller in the inverted position and the results were satisfactory. Four performance indices were calculated to evaluate the results for each configuration. They showed that the pendulum with two reaction wheels worked better than the pendulum with one reaction wheel. Two actuators made it easier to move and control the pendulum in the inverted position.

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Tesis sobre el tema "Inverted configuration"

Todoran, Alexandru Mihai. "Magnetron sputtering in inverted cylindrical configuration : 3D deposition on moving substrate". Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENI082.

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Les travaux présentés dans cette thèse constituent une étude sur la possibilité de déposer par pulvérisation plasma des couches minces de TiN sur des fils d'acier inoxydable en défilement. Les aspects technologiques tels que la conception et la construction d'une ligne prototype capable de nettoyer et déposer sur toute la circonférence des substrats cylindriques en mouvement sont présentés. Le développement de procédé dans la chambre de nettoyage par micro-ondes a permis l'amélioration des performances du plasma en termes de densité et de température d'électronique, ce qui a conduit à une amélioration de l'efficacité de nettoyage de substrat en termes de degré de propreté et de temps de traitement requis. D'une manière similaire, le développement de procédé dans la chambre de dépôt a permis de mettre en évidence la limitation majeure du magnétron cylindrique inversée (ICM), soit la très haute température atteinte par le substrat pendant le procédé. Le calcul théorique a permis l'identification de la majeure contribution au chauffage du substrat, et, afin de la réduire, la mise en place d'une solution technique consistant en électrodes supplémentaires, indépendamment polarisées. L'impact de la polarisation des électrodes supplémentaires est présenté en termes de paramètres de procédé (confinement du plasma, redistribution des courants, potentiel de la cible, modes de pulvérisation, temps de traitement plus permis, etc.), et, également, en termes de propriétés de couches déposées (vitesse de dépôt, profil d'épaisseur, composition et stœchiométrie). Basés sur les résultats obtenus dans le magnétron actuel, plusieurs possibilités d'améliorer encore les performances d'une nouvelle chambre de dépôt sont discutées
This thesis represents a study of the possibility to sputter - deposit titanium nitride thin films on moving stainless steel wires. Technological aspects such as the conception, design and construction of a prototype tool capable of in-line cleaning and deposition all around the circumference of moving cylindrical substrates are presented. The process development in the microwave cleaning chamber allowed the improvement of the plasma performance in terms of density and electron temperature, which lead to improvement of the substrate cleaning efficiency in terms of degree of cleanliness and required process time. Similarly, the process development in the deposition chamber permitted to highlight the major limitation of the inverted cylindrical magnetron (ICM), which is the very high temperature, the substrate reaches during process. Theoretical calculation allowed the identification of the major contribution to substrate heating, and a technical solution consisting of independently biased additional electrodes is proposed in order to reduce it. The impact of the additional electrodes polarization is discussed both in terms of process parameters (plasma confinement, electron current redistribution, target voltage, sputtering modes, longer allowable process time, etc.), and in terms of films properties (deposition rate, thickness profile, composition and stoichiometry). Based on the results obtained in the present ICM, several possibilities to improve the performance of a new magnetron are discussed

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McCrindle, Rachel Jane. "Inverse software configuration management". Thesis, Durham University, 1998. http://etheses.dur.ac.uk/5013/.

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Software systems are playing an increasingly important role in almost every aspect of today’s society such that they impact on our businesses, industry, leisure, health and safety. Many of these systems are extremely large and complex and depend upon the correct interaction of many hundreds or even thousands of heterogeneous components. Commensurate with this increased reliance on software is the need for high quality products that meet customer expectations, perform reliably and which can be cost-effectively and safely maintained. Techniques such as software configuration management have proved to be invaluable during the development process to ensure that this is the case. However, there are a very large number of legacy systems which were not developed under controlled conditions, but which still, need to be maintained due to the heavy investment incorporated within them. Such systems are characterised by extremely high program comprehension overheads and the probability that new errors will be introduced during the maintenance process often with serious consequences. To address the issues concerning maintenance of legacy systems this thesis has defined and developed a new process and associated maintenance model, Inverse Software Configuration Management (ISCM). This model centres on a layered approach to the program comprehension process through the definition of a number of software configuration abstractions. This information together with the set of rules for reclaiming the information is stored within an Extensible System Information Base (ESIB) via, die definition of a Programming-in-the- Environment (PITE) language, the Inverse Configuration Description Language (ICDL). In order to assist the application of the ISCM process across a wide range of software applications and system architectures, die PISCES (Proforma Identification Scheme for Configurations of Existing Systems) method has been developed as a series of defined procedures and guidelines. To underpin the method and to offer a user-friendly interface to the process a series of templates, the Proforma Increasing Complexity Series (PICS) has been developed. To enable the useful employment of these techniques on large-scale systems, the subject of automation has been addressed through the development of a flexible meta-CASE environment, the PISCES M4 (MultiMedia Maintenance Manager) system. Of particular interest within this environment is the provision of a multimedia user interface (MUI) to die maintenance process. As a means of evaluating the PISCES method and to provide feedback into die ISCM process a number of practical applications have been modelled. In summary, this research has considered a number of concepts some of which are innovative in themselves, others of which are used in an innovative manner. In combination these concepts may be considered to considerably advance the knowledge and understanding of die comprehension process during the maintenance of legacy software systems. A number of publications have already resulted from the research and several more are in preparation. Additionally a number of areas for further study have been identified some of which are already underway as funded research and development projects.

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Hazarika, Neep. "An inverse method for blended wing-body configurations". Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/12498.

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Alqarni, Mohammed. "A high efficiency photovoltaic inverter system configuration with maximum power point tracking". Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/12767.

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The increase in demand for renewable energy sources has been exponential in recent years and is mainly driven by factors that include the growth of greenhouse emissions and the decline in fossil fuel reservoirs. Photovoltaic (PV) energy, one of the more prominent renewable energy sources, produces electricity directly from sunlight, noiselessly and harmlessly to the environment. Additionally, PV energy systems are easy to install and financially supported by many governments, which has helped disseminate PV technology worldwide. The total generated power from PV installations (and the number of installations) has increased more than two-fold during the past 3 years, so that now more than 177 GW of PV-generated power is delivered per year. Researchers have been led to work on the obstacles facing PV systems from different perspectives, including: installation cost, inconsistency, and conversion and interface efficiency. The aim of this thesis is to design a high-efficiency PV inverter system configuration. The contribution to the knowledge in this thesis can be divided into two parts. The first part contains a critical analysis of different maximum power point tracking (MPPT) techniques. The second part provides a detailed design of the inverter system, which consists of a boost converter and a low-frequency H-bridge. Together, the three parts in this contribution present a complete high efficiency PV inverter system. The proposed system maintains high-efficiency energy delivery by reducing the number of high-frequency switches, which waste a significant amount of energy and reduce system efficiency. In order to show the superiority of the proposed configuration, a power loss analysis comparison with the other existing configurations is presented. In addition, different scenarios have been simulated with Matlab/Simulink. The results of these simulations confirm the distinction of the proposed configuration as well as its low-loss, high-efficiency characteristics which is rated at 98.8%.

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Ozdemir, Mustafa. "Inverse Dynamics Control Of Parallel Manipulators Around Singular Configurations". Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609212/index.pdf.

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In this thesis, a technique for the motion of parallel manipulators through drive singularities is investigated. To remedy the problem of unbounded inverse dynamics solution in the neighborhood of drive singularities, an inverse dynamics controller which uses a conventional inverse dynamics control law outside the neighborhood of singularities and switches to the mode based on the formerly derived modified equations inside the neighborhood of singularities is proposed. As a result, good tracking performance is obtained while the actuator forces remain within the saturation limits of the actuators around singular configurations.

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Grudić, Gregory Z. "Iterative inverse kinematics with manipulator configuration control and proof of convergence". Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/42018.

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A complete solution to the inverse kinematics problem for a large class of practical manipulators, which includes manipulators with no closed form inverse kinematics equations, is presented in this thesis. A complete solution to the inverse kinematics problem of a manipulator is defined as a method for obtaining the required joint variable values to establish the desired endpoint position, endpoint orientation, and manipulator configuration; the only requirement being that the desired solution exists. For all manipulator geometries that satisfy a set of conditions (THEOREM I), an algorithm is presented that is theoretically guaranteed to always converge to the desired solution (if it exists). The algorithm is extensively tested on two complex 6 degree of freedom manipulators which have no known closed form inverse kinematics equations. It is shown that the algorithm can be used in real time manipulator control. Applications of the method to other 6 DOF manipulator geometries and to redundant manipulators are discussed.
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate

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Voznyuk, Ivan. "Méthodes de décomposition de domaines pour la modélisaton électromagnétique et l'imagerie micro-onde quantitative dans des configurations tridimensionnelles de grande taille". Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4732/document.

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Cette thèse porte sur la modélisation des ondes électromagnétiques en milieu complexe et à haute fréquence. Ceci reste un défi, de part les besoins en temps de calcul et en place mémoire que cela suscite. L'idée de la méthode Finite Element Tearing and Interconnect (FETI) est de diviser le domaine en sous-domaines distincts dans lesquels des problèmes électromagnétiques peuvent être résolus de manière indépendante. Une modification de la méthode classique, appelée FETI-DPEM2-full, est ici proposée afin d'améliorer le processus numérique. Les champs diffractés par différents objets ont ainsi été simulés et comparés avec succès à des champs expérimentaux. A partir de ces champs, les techniques d'imagerie micro-onde permettent de déterminer les paramètres électromagnétiques des objets illuminés. Ce problème inverse peut être réécrit sous la forme d'un problème d'optimisation faisant appel à la résolution de deux problèmes directs à chaque itération. Une méthode de type quasi-Newton a donc été couplée efficacement avec la méthode FETI-DPEM2-full. Des reconstructions obtenues à partir de champs mesurés sont présentées et valident la chaîne méthodologique proposée
This PhD work is devoted to the electromagnetic modeling of threedimensional large-scale wave propagation problems, which is very challenging in terms of memory and computation time. The main idea of the Finite Element Tearing and Interconnect (FETI) method is to divide the domain into non-overlapping subdomains where each electromagnetic problem can be independently solved. A modification of the classical FETI method, called the FETI-DPEM2-full method, is proposed herein to improve the numerical process. The fields scattered by various structures have thus been computed and successfully compared with measured fields. From these experiments, quantitative microwave imaging algorithms attempt to estimate the physical parameters of the illuminated target. This inverse problem is recasted into a minimization problem where two forward problems are required at each iteration step. A quasi-Newton algorithm has thus been efficiently coupled with the FETI-DPEM2-full method. Reconstructions of various targets from measured scattered fields have been successfully performed, which validates the effectiveness of the proposed methodology

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Vilamot, Raphaël. "Optimisation de la configuration magnétique d'un propulseur à effet Hall par résolution du problème magnétostatique inverse". Phd thesis, Toulouse, INPT, 2012. http://oatao.univ-toulouse.fr/14668/1/vilamot.pdf.

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Les travaux effectués lors de cette thèse portent sur l'optimisation de la configuration magnétique des propulseurs à effet Hall. Ceci regroupe deux objectifs: d'une part la réalisation d'un propulseur à effet Hall dont la topologie magnétique est entièrement paramétrable, ce qui constituera un outil précieux pour l'étude de l'impact du champ magnétique sur le fonctionnement du propulseur et d'autre part, l'étude de moyen de conception rationalisée de circuits magnétiques pour ces mêmes propulseurs. Le premier sujet a conduit à la réalisation du PPS-Flex, un propulseur proposant une structure de circuit magnétique innovante offrant un grand nombre de degrés de liberté en termes de réglage du champ magnétique produit. La deuxième thématique a quant à elle été abordée en s'appuyant sur des méthodes d'optimisation (paramétrique et topologique) permettant d'aboutir à un circuit magnétique optimal pour un ou plusieurs critères de conception (fidélité du champ magnétique généré, minimisation de la masse, du volume total, etc.)

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Akteke, Basak. "Derivative Free Optimization Methods: Application In Stirrer Configuration And Data Clustering". Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606591/index.pdf.

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Recent developments show that derivative free methods are highly demanded by researches for solving optimization problems in various practical contexts. Although well-known optimization methods that employ derivative information can be very effcient, a derivative free method will be more effcient in cases where the objective function is nondifferentiable, the derivative information is not available or is not reliable. Derivative Free Optimization (DFO) is developed for solving small dimensional problems (less than 100 variables) in which the computation of an objective function is relatively expensive and the derivatives of the objective function are not available. Problems of this nature more and more arise in modern physical, chemical and econometric measurements and in engineering applications, where computer simulation is employed for the evaluation of the objective functions. In this thesis, we give an example of the implementation of DFO in an approach for optimizing stirrer configurations, including a parametrized grid generator, a flow solver, and DFO. A derivative free method, i.e., DFO is preferred because the gradient of the objective function with respect to the stirrer&rsquo
s design variables is not directly available. This nonlinear objective function is obtained from the flow field by the flow solver. We present and interpret numerical results of this implementation. Moreover, a contribution is given to a survey and a distinction of DFO research directions, to an analysis and discussion of these. We also state a derivative free algorithm used within a clustering algorithm in combination with non-smooth optimization techniques to reveal the effectiveness of derivative free methods in computations. This algorithm is applied on some data sets from various sources of public life and medicine. We compare various methods, their practical backgrounds, and conclude with a summary and outlook. This work may serve as a preparation of possible future research.

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Dhib, Soumaya. "Contribution à l'optimisation de la Configuration et à l'évaluation de performances des réseaux logistiques inverses : cas des déchets des équipements électriques et électroniques". Thesis, Paris 8, 2017. http://www.theses.fr/2017PA080033/document.

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Les durcissements réglementaires relatifs à la gestion environnementale et à la responsabilité écologique forcent de plus en plus les industriels à respecter l’environnement dans leur déploiement et développement. A l’heure où on parle de la diminution de la durée de vie des produits de consommation et des biens durables, ces industriels ont désormais la mission de mettre en place des processus de valorisation de leurs produits en fin de vie et des dérivés de leur productions. Cela a été notamment le cas des équipements informatiques et électroniques qui cherchent à concevoir des réseaux logistiques qui répondent aux besoins de gestions des flux de leurs retours comme les DEEE1. En effet, ils sont soumis à des fortes sollicitations (maîtrise des destinations de valorisation de produits en fin de vie, réduction des coûts de traitement, réduction de l’impact des activités logistiques associées sur l’environnement, …). Ce travail s’intéresse à la conception des réseaux logistiques des flux de retours qui sont soumis naturellement aux contraintes économiques mais aussi à celles environnementales. Quelques-uns des facteurs complexifiant du problème comme : l’état de retour, la fluctuation de la demande en produits valorisés, … sont pris en compte dans la recherche de la configuration du réseau logistiques qui répond au mieux aux besoins
Regulatory tightening on environmental management and environmental responsibility increasingly forces industrialists to respect the environment in their deployment and development. At a time when we are talking about the shortening of the life span of consumer products and durable goods, these manufacturers now have the task of putting in place processes for the valorization of their end-of-life products and derivatives of their products productions. This has been the case in particular for computer and electronic equipment which seeks to design logistic networks that meet the management needs of the flows of their returns such as WEEE1. Indeed, they are subject to strong demands (mastery of destinations for valorisation of end-of-life products, reduction of processing costs, reduction of the impact of associated logistical activities on the environment, etc.). This work deals with the design of logistic networks of returns flows which are naturally subject to economic constraints but also to environmental ones. Some of factors of the problem such as: return status, fluctuations in the demand for valued products, etc. are taken into account in the search for the configuration of the logistics network that best meets the needs

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Libros sobre el tema "Inverted configuration"

Ontario. Esquisse de cours 12e année: Le droit canadien et international cln4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.

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Ontario. Esquisse de cours 12e année: Étude de l'alimentation et de la nutrition hfa4m cours préuniversitaire. Vanier, Ont: CFORP, 2002.

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Ontario. Esquisse de cours 12e année: Atelier d'écriture fae4o cours ouvert. Vanier, Ont: CFORP, 2002.

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Ontario. Esquisse de cours 12e année: Histoire de l'Occident et du monde chy4u. Vanier, Ont: CFORP, 2002.

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Ontario. Esquisse de cours 12e année: Géométrie et mathématiques discrètes mga4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.

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Ontario. Esquisse de cours 12e année: Français des affaires faf4o. Vanier, Ont: CFORP, 2002.

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Ontario. Esquisse de cours 12e année: L'église et la culture hre4m. Vanier, Ont: CFORP, 2007.

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Ontario. Esquisse de cours 12e année: Politique canadienne et mondiale cpw4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.

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Ontario. Esquisse de cours 12e année: The writer's craft eac4c cours précollégial. Vanier, Ont: CFORP, 2002.

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Ontario. Esquisse de cours 12e année: Études interdisciplinaires un monde sans frontières idc4o cours ouvert. Vanier, Ont: CFORP, 2002.

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Capítulos de libros sobre el tema "Inverted configuration"

Cantero-Chinchilla, Sergio, Juan Chiachío, Manuel Chiachío y Dimitrios Chronopoulos. "Ultrasonic Guided-waves Based Bayesian Damage Localisation and Optimal Sensor Configuration". En Bayesian Inverse Problems, 113–31. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/b22018-8.

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Muñoz-Cerón, Emilio, Francisco J. Muñoz-Rodríguez, Juan de la Casa y Pedro Pérez-Higueras. "High-Concentrator Photovoltaic Systems Configuration and Inverters". En High Concentrator Photovoltaics, 209–37. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15039-0_8.

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Bhardwaj, Kapil y Mayank Srivastava. "New FDNR and FDNC Simulation Configurations Using Inverted VDDIBAs". En Lecture Notes in Electrical Engineering, 583–94. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6840-4_48.

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Zhang, Yidian, Jiangtao Huang y Zhenghong Gao. "Low Boom Supersonic Aircraft Configuration Optimization Using Inverse Design Method". En Lecture Notes in Electrical Engineering, 1023–41. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3305-7_82.

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Rodrigues, Cilene. "Agreement and Flotation in Partial and Inverse Partial Control Configurations". En Studies in Natural Language and Linguistic Theory, 223–29. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6176-9_9.

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Yamini Pandey, Shubham Negi, Srishti, A. K. Baliga y Brijesh Kumar. "Dual Gate Organic Inverter Circuit Behavior Analysis Based on Diode Load Logic Configuration". En Proceeding of International Conference on Intelligent Communication, Control and Devices, 1027–33. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1708-7_121.

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Ooi, Gabriel H. P. "Transformerless Five-Level/Multiple-Pole Multilevel Inverters with Single DC Bus Configuration". En Advanced Multilevel Converters and Applications in Grid Integration, 163–200. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119476030.ch10.

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Apollonov, Victor V. "Synthesis of Laser Resonator Configurations as an Inverse Problem in Optics". En Springer Series in Optical Sciences, 85–98. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10753-0_7.

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Chirtoc, M., D. Dadarlat y D. Bićanić. "Standard Versus New Photopyroelectric (PPE) Techniques: Reflection (RPPE) and Inverse (IPPE) Configurations". En Photoacoustic and Photothermal Phenomena III, 103–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-540-47269-8_27.

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Stein, V. "The Solution of Scattering and Radiation Problems for Complex Configurations Based on 3-D Grid and Patch Models". En Direct and Inverse Methods in Radar Polarimetry, 625–74. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-010-9243-2_23.

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Actas de conferencias sobre el tema "Inverted configuration"

Miller, D. B., R. G. Stockton y C. W. Krueger. "An inverted approach to configuration management". En SCM: 2nd Intl Workshop on Software Configuration Mgmt. New York, NY, USA: ACM, 1989. http://dx.doi.org/10.1145/72910.73338.

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Kohns, P., E. I. Logacheva, V. S. Makin y Yu I. Pestov. "Inverted SP resonance in palladium in Kretchmann configuration". En SPIE Proceedings, editado por Vadim E. Privalov. SPIE, 2006. http://dx.doi.org/10.1117/12.677895.

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Pehowich, J. "Design of a sixteenth cyclotron harmonic cusptron of an inverted configuration". En 16th International Conference on Infrared and Millimeter Waves. SPIE, 1991. http://dx.doi.org/10.1117/12.2297882.

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Dasari, Abhinav y Mirko Gamba. "Variation of Dominant Instability Mode with Fuel Configuration in an Inverted Coaxial Injector". En 52nd AIAA/SAE/ASEE Joint Propulsion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-4897.

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Maric, Viktor, Aleksandar Menicanin, Ljiljana Zivanov y Obrad Aleksic. "Cascade configuration of inverted T-type LC EMI chip filters and its EM simulation". En IEEE EUROCON 2009 (EUROCON). IEEE, 2009. http://dx.doi.org/10.1109/eurcon.2009.5167633.

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Onishi, Yasuo, Donald S. Trent, Satoru T. Yokuda, Catherine A. Hier Majumder, Edgar W. Martinen y Curt A. Rieck. "Optimal Pump Elevation and Configuration for Mixing Erosion-Resisting Radioactive Tank Waste". En ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45502.

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At the U.S. Department of Energy’s Hanford Site, 300-hp mixer pumps will be installed in the 4,000-m3 double-shell tanks (DSTs) to stir the radioactive sludge and supernatant liquid waste so that it can be retrieved for subsequent treatment and disposal. A baseline mixer pump that has been used in the DSTs has an intake at the bottom and two injection nozzles at the top. The pump is placed approximately 0.46 m above the bottom of the tank. We compared the predicted mixing performance of this baseline pump with an alternative pump—an inverted pump with the inlet at the top and injection nozzles at the bottom. Model predictions were compared with some measured data. We evaluated 16 cases of baseline and inverted pump conditions with mixer pumps situated at levels ranging from right on the tank bottom to 0.83 m above the tank bottom. Model results generally indicated sludge erosion is greater the closer the pump’s injection nozzle is to the tank bottom. These results provided an evaluation of mixing performance for use in a cost, risk, and benefit analysis to determine which pump configuration should be used for DST waste retrieval activities.

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Tsujikawa, Yoshiharu, Ken-Ichi Kaneko y Shusuke Tokumoto. "Inverted Turbo-Jet Engine for Hypersonic Propulsion". En ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68947.

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This paper concerns to the inverted turbo-jet engine intended for operation in the range of Mach numbers from 0 to 6. In the present engine configuration, which is based on the inverted Brayton cycle, the sequence of the core-engine components was arranged in the order: turbine - heat exchanger - compressor - combustor. It should also be noted that the inverted Brayton cycle has also been considered for application to stationary power generation systems in the role of a bottoming cycle. An improved version of the inverted turbo-jet engine (ITE), has also been proposed in the present paper, incorporates an additional combustor installed between the inlet and the turbine. At low speeds this additional burner allows a heat input upstream of the initial turbine to augment thrust. The fuel-rich mode of operation is expected to be beneficial, as speed increases. In summary, the inverted turbojet engine can produce sufficient thrust compared to another engine concepts and it reveals high energy efficiency over the wide speed of range.

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Sulic, Edin, Sabu John, Brendan Pell, Wayne Rowe, Kamran Ghorbani, Rahul Gupta y Kefei Zhang. "Signal Quality Evaluation of Embedded Antennas in Composite Panels". En ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3701.

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In this paper, an attempt is made to evaluate signal performance of an antenna embedded in a viscoelastic thermoset composite polymer commonly known as Sheet Moulding Compound (SMC). Signal quality is investigated by studying the impedance matching and radiation pattern results of an embedded antenna. The investigation was done experimentally and using simulation software CST Microwave Studio. Two types of antenna have been investigated. One being planar inverted conical antenna (PICA) that operates in the range of about 850 MHz to about 10 GHz and the second one being slot dipole antenna that operates in the range of 1.2 GHz to 1.4 GHz. The signal quality was evaluated at four different antenna configurations. Configuration 1 – antenna with 0° angle deformation, configuration 2 – antenna with 22° angle, configuration 3 – antenna with 45° angle and configuration 4 – 90° angle. The effect of these four configurations on signal quality of each antenna is discussed and simulation results are compared to experimental results.

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Porte, Henri, Badhise Ben Bakir y Stephane Bernabe. "Epoxy free butt coupling between a lensed fiber and a silicon nanowire waveguide with an inverted taper configuration". En 2011 IEEE 8th International Conference on Group IV Photonics (GFP). IEEE, 2011. http://dx.doi.org/10.1109/group4.2011.6053825.

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Liu, Yao-Hsien, Michael Huh, Je-Chin Han y Hee-Koo Moon. "High Rotation Number Effect on Heat Transfer in a Triangular Channel With 45°, Inverted 45°, and 90° Ribs". En ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59216.

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Heat transfer and pressure drop have been experimentally investigated in an equilateral triangular channel (Dh = 1.83cm), which can be used to simulate the internal cooling passage near the leading edge of a gas turbine blade. Three different rib configurations (45°, inverted 45°, and 90°) were tested at four different Reynolds numbers (10000–40000), each with five different rotational speeds (0–400 rpm). The rib pitch-to-height (P/e) ratio is 8 and the height-to-hydraulic diameter (e/Dh) ratio is 0.087 for every rib configuration. The rotation number and buoyancy parameter achieved in this study were 0–0.58 and 0–2.3, respectively. Both the rotation number and buoyancy parameter have been correlated to predict the rotational heat transfer in the ribbed equilateral triangular channel. For the stationary condition, staggered 45° angled ribs show the highest heat transfer enhancement. However, staggered 45° angled ribs and 90° ribs have the higher comparable heat transfer enhancement at rotating condition near the blade leading edge region.

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Informes sobre el tema "Inverted configuration"

Davis, Rick D., Shonali Nazare, Szabolcs Matko, William Pitts y Mauro Zammarano. Resulets of barrier fabrics tested in an inverted configuration. Gaithersburg, MD: National Institute of Standards and Technology, 2015. http://dx.doi.org/10.6028/nist.ir.8075.

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