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System analysis problems

Xem 1-20 trên 226 kết quả System analysis problems
  • Suicides and suicide attempts are major public health problems, and coping strategies are hampered by insufficient or inadequate notifications. Data accuracy influences the formulation of public and mental health policies and suicide prevention strategies. The objective of this study was to analyze the completeness of self-harm and suicide records in the state of Pernambuco, Brazil, 2014–2016.

    pdf9p viferrari 28-11-2022 2 1   Download

  • This paper proposes a formulation based on mixed-integer quadratically constrained programming (MIQCP) for the problem of optimally determining network topology aiming at minimum power loss in electrical distribution grids considering distributed generation and shunt capacitors.

    pdf9p viporsche 25-10-2022 1 1   Download

  • The motion equation of a one-degree-of-freedom system when subjected to earthquakes is usually not solved by analytic methods. This problem can only be solved through the time step method, when integrating differential equations. This paper is devoted to presenting a numerical solution for a seismic analysis problem of a highway bridge pier with high damping rubber bearings under earthquakes.

    pdf14p vimclaren 12-10-2022 4 1   Download

  • (BQ) Ebook Analytical and computational methods of advanced engineering mathematics: Part 1 includes the following content: Chapter 1 First-Order ODEs; chapter 2 Second-Order Linear ODEs; chapter 3 Higher Order Linear ODEs; chapter 4 Systems of ODEs, Phase Plane, Qualitative Methods; chapter 5 Series Solutions of ODEs, Special Functions; chapter 6 Laplace Transforms; chapter 7 Linear Algebra: Matrices, Vectors, Determinants, Linear Systems; chapter 8 Linear Algebra: Matrix Eigenvalue Problems; chapter 9 Vector Differential Calculus, Grad, Div, Curl; chapter 10 Vector Integral Calculus, Inte...

    pdf632p runordie6 10-08-2022 2 0   Download

  • Software design - Lecture 26. The main topics covered in this chapter include: panel discussion on scenario; problem statement to be shown in word; analysis of panel discussion; discussion on rich picture diagram; deployment diagram; visualize hardware topology of a system;...

    ppt18p haoasakura 30-05-2022 4 1   Download

  • Advanced Operating Systems - Lecture 9: Shared variables. This lecture will cover the following: shared variable analysis in multi-threaded programs; concurrency and synchronization; critical sections; solutions to the critical section problem; concurrency examples;...

    ppt30p haoasakura 30-05-2022 7 1   Download

  • Lecture Database management systems: Lesson 44. The main topics covered in this chapter include: uncommitted update problem, inconsistent analysis, serial execution, interleaved schedule, real problem, conflicting operations, conflicting transactions, lock compatibility,...

    ppt17p wangziyi_1307 26-04-2022 6 1   Download

  • Lecture Methods of Electric power systems analysis - Lesson 21: Optimal power flow, linear programming (LP) provide students with knowledge about OPF problem formulation; two bus with unconstrained line; power flow in a simple network distributes inversely to impedance of path; LP OPF solution method; enforces real/reactive power balance at each bus;...

    pdf42p hanthienngao 15-04-2022 9 1   Download

  • Lecture Methods of Electric power systems analysis - Lesson 22: LP, OPF, electricity markets provide students with knowledge about the OPF is usually formulated as a minimization with equality and inequality constraints; LP OPF solution method; LP standard form; marginal costs of constraint enforcement in LP; the marginal costs will be used to determine the OPF locational marginal costs (LMPs);...

    pdf45p hanthienngao 15-04-2022 11 1   Download

  • The rapid growth of data has become a huge challenge for software systems. The quality of fault prediction model depends on the quality of software dataset. High-dimensional data is the major problem that affects the performance of the fault prediction models. In order to deal with dimensionality problem, feature selection is proposed by various researchers.

    pdf7p viplato 05-04-2022 12 1   Download

  • Long-term cyclic tensile testing with equine palmar/plantar tendons have not yet been performed due to problems in fixing equine tendons securely and loading them cyclically. It is well established that the biomechanical response of tendons varies during cyclic loading over time. The aim of this study was to develop a clamping device that enables repetitive cyclic tensile testing of equine superficial digital flexor tendon for at least 60 loading cycles and for 5 min.

    pdf15p vidarwin 23-02-2022 6 1   Download

  • In this article, challenges and problems that impact businesses will be considered as well as a great solution to handle them, which is ELK. ELK is the name of an open source software group, which includes Elasticsearch, Logstash and Kibana. In which, Elasticsearch is the source or heart of this system. In the deeper part of the article, ELK will be thoroughly explored, thereby helping readers understand why ELK is a great solution to practical problems related to data management.

    pdf7p huyetthienthan 23-11-2021 7 0   Download

  • This study aims to develop a system of performance analysis indicators for Vietnam’s paper enterprises. The research results developed a system of 34 indicators analyzed according to the horizontal information analysis process of Brown (1996). The analytical indicators focus on economic efficiency but also refer to factors of social efficiency and ecological efficiency. At first, the study used a technique of in-depth interviews with 15 paper industry experts to discover new problems.

    pdf14p huyetthienthan 23-11-2021 7 0   Download

  • Ho Chi Minh City is Vietnam's largest city. This is a dynamic city with the fastest socio-economic development rate in the whole country. The development of Ho Chi Minh City plays an important role in the overall development of the whole country. However, according to the assessments of the authorities and experts, Ho Chi Minh City is growing slowly and facing many big problems.

    pdf13p huyetthienthan 23-11-2021 7 0   Download

  • Genotyping of the human leucocyte antigen (HLA) is indispensable for various medical treatments. However, unambiguous genotyping is technically challenging due to high polymorphism of the corresponding genomic region. Next-generation sequencing is changing the landscape of genotyping. In addition to high throughput of data, its additional advantage is that DNA templates are derived from single molecules, which is a strong merit for the phasing problem.

    pdf12p vilarryellison 29-10-2021 6 0   Download

  • Lecture Basic chemistry: A Foundation - Chapter 1. After studying this section will help you understand: chemistry, chemistry deals with the natural world; solving problems using a scientific approach; the difference between a theory and a law,...

    ppt16p diepchilang 26-08-2021 8 0   Download

  • The aim of this paper is to clarify present conditions and problems of work style reform in Japan. The author wants to know why work style of each country is so different and what the relation between the work style and work motivation is. In so doing, the author presupposes the following two points. The first is that each economic system has its corresponding rules for motivation and incentive and the second is that in order to compare work style internationally, it is essential to take into account cultural and social contexts of each country.

    pdf7p vinhvnh1212 28-06-2021 6 0   Download

  • Objectives: The main objective of this thesis is to study the problem of stability analysis and applications in control of discrete-time 2-D systems described by Roesser model with certain types of stochastic parameters. The research includes the methodology development and establishment of analysis and synthesis conditions of the following specified models.

    pdf120p thebadguys 08-06-2021 10 0   Download

  • Objectives: The main objectives of this thesis is to study the problem of stability analysis and applications in control of discrete-time 2-D systems described by Roesser model with certain types of stochastic parameters. The research includes the methodology development and establishment of analysis and synthesis conditions of the following specified models.

    pdf27p thebadguys 08-06-2021 11 0   Download

  • This paper extends a numerical procedure for limit ananlysis of 3-D structures using node-based smoothed finite element method (NS-FEM) in combination with second-order cone programming (SOCP). The obtained discretization formulation is then cast in a form which involves second-order cone constraints, ensuring that the underlying optimization problem can be solved by highly efficient primaldual interior point algorithm. Furthermore, in the NS-FEM, the system stiffness matrix is computed using the smoothed strains over the smoothing domains associated with nodes.

    pdf10p chauchaungayxua12 12-05-2021 7 0   Download



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