Showing 741 - 760 results of 10,747 for search 'construction problems', query time: 0.14s Refine Results
  1. 741

    Approximate Solutions of Multidimensional Wave Problems Using an Effective Approach by Muhammad Nadeem, Qura tul Ain, Yahya Alsayaad

    Published 2023-01-01
    “…The recurrence relation is very important to deal with the approximate solution of differential problems. We construct a scheme with the help of the Laplace-Carson integral transform (LcIT) and the homotopy perturbation method (HPM), called Laplace-Carson homotopy integral transform method (LcHITM). …”
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  2. 742

    An Effective Algorithm for Globally Solving Sum of Linear Ratios Problems by Hongwei Jiao, Lei Cai, Zhisong Hou, Chunyang Bai

    Published 2017-01-01
    “…Secondly, by utilizing direct relaxation, the linear relaxation programming problem of the equivalent problem can be constructed. …”
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  3. 743

    Diffusion Chaos in Reaction – Diffusion Boundary Problem in the Dumbbell Domain by S. D. Glyzin, P. L. Shokin

    Published 2013-06-01
    “…The conditions on chaotic oscillations emergence were studied and the dependence of invariant characteristics of the attractor on the bridge width was constructed. The diffusion parameter was chosen such that in the case of widest possible bridge (corresponding to a rectangular domain) the spatially homogeneous cycle of the problem is orbitally asymptotically stable. …”
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  4. 744

    Multiple Positive Solutions for Nonlinear Fractional Boundary Value Problems by Daliang Zhao, Yansheng Liu

    Published 2013-01-01
    “…Firstly, by constructing a special cone, applying Guo-Krasnoselskii’s fixed point theorem and Leggett-Williams fixed point theorem, some new existence criteria for fractional boundary value problem are established; secondly, by applying a new extension of Krasnoselskii’s fixed point theorem, a sufficient condition is obtained for the existence of multiple positive solutions to the considered boundary value problem from its auxiliary problem. …”
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  5. 745

    Non-classical periodic boundary value problems with impulsive conditions by Sevda Nur Öztürk, Oktay Mukhtarov, Kadriye Aydemir

    Published 2023-04-01
    “…We also defined some left and right-hand solutions, in terms of which we constructed a new transfer characteristic function. …”
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  6. 746

    Multifactor task allocation problem in wireless sensor and actuator networks by Lei MU, Jian-ying CHEN, Xiao-mei QU, Tao LIU

    Published 2017-10-01
    “…Task allocation is an essential part of many military applications of WSAN such as intelligent minefield.The key problem of task allocation decision in these systems for the optimal scheme on task allocation is how to obtain the node-target assignment.Combing with the factors of target’s parameters and node’s own status,the various influence factors of task efficiency were analyzed and the positive and negative indicators were processed by range normalization method separately.The linear-weighted task efficiency function was proposed in the applications of WSAN such as intelligent minefield.It can be utilized as the evaluation index of assignment schemes since it reflected the integrated impact of target’s threat and node’s value on the system more comprehensively.Task efficiency function can be constructed flexibly based on the demand of different multifactor task allocation application.The essence of the problem was how to make node-target assignment to achieve the maximum task efficiency of the whole system.This problem turned into assignment problem and can be solved.Finally,an application was implemented to demonstrate this scheme.The results show that the model is suitable for small-scale multifactor task allocation problem in intelligent minefield system.…”
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  7. 747

    Multifactor task allocation problem in wireless sensor and actuator networks by Lei MU, Jian-ying CHEN, Xiao-mei QU, Tao LIU

    Published 2017-10-01
    “…Task allocation is an essential part of many military applications of WSAN such as intelligent minefield.The key problem of task allocation decision in these systems for the optimal scheme on task allocation is how to obtain the node-target assignment.Combing with the factors of target’s parameters and node’s own status,the various influence factors of task efficiency were analyzed and the positive and negative indicators were processed by range normalization method separately.The linear-weighted task efficiency function was proposed in the applications of WSAN such as intelligent minefield.It can be utilized as the evaluation index of assignment schemes since it reflected the integrated impact of target’s threat and node’s value on the system more comprehensively.Task efficiency function can be constructed flexibly based on the demand of different multifactor task allocation application.The essence of the problem was how to make node-target assignment to achieve the maximum task efficiency of the whole system.This problem turned into assignment problem and can be solved.Finally,an application was implemented to demonstrate this scheme.The results show that the model is suitable for small-scale multifactor task allocation problem in intelligent minefield system.…”
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    Article
  8. 748

    Boundary Value Problems on a Star Thermal Graph and their Solutions by L.A. Alexeyeva, A.N. Dadayeva, D.A. Prikazchikov, N.Zh. Ainakeyeva

    Published 2025-06-01
    “…Based on the generalized function method, a unified technique for solving boundary value problems on such graphs is developed. Generalized solutions to transient and stationary boundary value problems are constructed for different conditions at the end edges, with the Kirchhoff conditions at the common node. …”
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  9. 749
  10. 750

    Network Model for The Problem of Integer Balancing of a Fourdimensional Matrix by A. V. Smirnov

    Published 2016-08-01
    “…The problem of integer balancing of a four-dimensional matrix is studied. …”
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  11. 751
  12. 752

    About a Routing Problem of the Tool Motion on Sheet Cutting by A. A. Petunin, A. G. Chentsov, P. A. Chentsov

    Published 2015-04-01
    “…For the routing problem of tool permutations under the thermal cutting of parts from sheet material realized on CNC machines, questions connected with constructing precise (optimal) and heuristic algorithms used on the stage of mathematical simulation of route elements under sequential megalopolises circuit are investigated. …”
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  13. 753

    Aspects Concerning Validation of Theoretical Solution of Generalised Ladder Problem by Costica Lupascu, Stelian Alaci, Florina-Carmen Ciornei, Ionut-Cristian Romanu, Delia-Aurora Cerlinca, Carmen Bujoreanu

    Published 2025-03-01
    “…One of the most well-known problems of dynamics is the “ladder problem”. In this paper, a theoretical model is proposed followed by the experimental validation of the predicted solution. …”
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  14. 754
  15. 755
  16. 756

    Spatiotemporal-Dependent Vehicle Routing Problem Considering Carbon Emissions by Ziqi Liu, Yeping Chen, Jian Li, Dongqing Zhang

    Published 2021-01-01
    “…Experimental instances are constructed based on benchmark instances of vehicle routing problem. …”
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  17. 757

    Is solastalgia associated with mental health problems? A scoping review by Ulrike Ehlert, Susanne Fischer, Alicia Vela Sandquist, Leonie Biele

    Published 2025-08-01
    “…However, the psychological mechanisms underlying the link between environmental changes and mental health problems remain underexplored. This scoping review investigates whether solastalgia—a form of distress caused by environmental change—acts as a potential contributing factor to mental health problems.Study selection and analyses We conducted a systematic search of the databases PsycINFO and PubMed using the keyword ‘solastalgia’. …”
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  18. 758
  19. 759

    Multidimensional Electrical Networks and their Application to Exponential Speedups for Graph Problems by Jianqiang Li, Sebastian Zur

    Published 2025-05-01
    “…By comparison, Li [arXiv '23] constructed a non-regular graph based on welded trees and used the degree information to achieve a similar speedup.…”
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  20. 760

    The Psychometric Properties of the Farsi Version of the Hooper Sexual Problems Questionnaire by Mahshid Sasanpour, Amir Azizi

    Published 2019-04-01
    “…Objective: The current study aimed at standardizing the Hopper sex problems questionnaire in Iranian couples. Materials and Methods: The current methodological study was conducted on 310 couples (620 people), selected by multistage random sampling method, to assess the construct validity (convergent and differential validity), criterion validity, and the internal consensus estimation of the questionnaire. …”
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