Complex systems

Discourse is the complex, flexible entity in the system of meaning expression consisting of many levels closely and dialectically related. The syntactic structure principles help the user shape discourse components appropriately to suit the content and purpose of the communication.

15p viyamanaka 06-02-2025 2 2   Download

This paper presents a system that combines torque control algorithms based on a back-propagation neural network (BP-ANN) and an Adaptive Neuro-Fuzzy Inference System (ANFIS). The BP-ANN uses a multi-layer structure where the input layer processes factors such as load torque, rotational speed, and stator current, hidden layers model complex nonlinear interactions, and the output layer predicts optimal torque for AFPMSM operation.

15p viyamanaka 06-02-2025 5 2   Download

Healthcare-associated infections (HAIs) are complex conditions that appear in any healthcare facility. They truly become an economic and financial burden for the family and healthcare service system, particularly in developing countries. Nurses directly provide care for patients because they can be the cause of the spread of HAIs in healthcare institutions.

7p vinara 11-01-2025 2 1   Download

Systemic Lupus Erythematosus (SLE) is a complex autoimmune disease with diverse clinical manifestations and relapsing - remitting disease course. To evaluate the correlation between NLR and PLR in peripheral blood and renal involvement in systemic lupus erythematosus.

7p viharuno 03-01-2025 6 2   Download

Acne vulgaris is an inflammatory disease of the pilosebaceous unit, consisting of comedones, papules, pustules, nodules, and cysts. With the complexity of polymorphic nature, acne vulgaris is inherently difficult to assess and the measurement and grading of this condition is a recognized challenge for clinicians. This article presents a comprehensive preview of acne severity assessment according to timelines to give an overview of methods used to measure acne severity.

8p viharuno 03-01-2025 8 2   Download

This study shows that when compression/bending and torsion are applied simultaneously, the bond between the concrete core and steel tube may weaken, leading to slippage, which in turn reduces the structural system’s load-bearing efficiency.

8p vibenya 31-12-2024 3 2   Download

Is a branch of polymer science dealing with analysis and characterisation of polymers. üThe complication of macromolecular chains, the dispersion in molecular weight, tacticity, crystallinity, orientation, composition of polymers etc. and complex morphological systems ⇒ analysis of polymer ≠ the small organic materials ⇒ Focus on viscoelastic properties, dynamic mechanical testing.

114p buitiendung87 06-01-2011 345 154   Download

Give insight in the design of digital electronic systems at the gate and register-transfer level • Teach the use of modern design tools • Offer all building blocks needed to construct complex digital circuits, including processors • Present the difference between functional requirements (operation) and non-functional requirements (cost, speed, power, area) • Introduce modern implementation platforms: PLA, PLD, FPGA

128p hoangclick 08-10-2011 142 27   Download

The modelling of traffic flow using methods and models from physics has a long history. In recent years especially cellular automata models have allowed for large-scale simulations of large traffic networks faster than real time. On the other hand, these systems are interesting for physicists since they allow to observe genuine nonequilibrium effects. Here the current status of cellular automata models for traffic flow is reviewed with special emphasis on nonequilibrium effects (e.g. phase transitions) induced by on- and off-ramps.

23p nguyenhaisu 07-08-2015 65 4   Download

Lecture "Fundamentals of control systems - Chapter 1: Introduction" presentation of content: What is control system, control principle, components off control systems, examples of control systems, review of complex variables and Laplace transform.

93p doinhugiobay_17 04-03-2016 74 11   Download

The study determines the predominant hydrogeological controls on salinity distribution and salinization/freshening, proposing conceptual models to explain the different vertical distributions of groundwater salinity at the coastline. An improved understanding of the sources of salinity and the hydrogeological controls will subsequently provide support for the future management of groundwater in the Western Port Basin, and serve as a template for how to unravel complex salinity distributions in coastal aquifers, and their relationships to palaeo- and recent geomorphological histories.

314p runthenight05 01-03-2023 17 4   Download

This thesis intends to develop application-level access control models to address several major security issues in enterprise environments. The first goal is to provide simple and efficient authorization specifications to reduce the complexity of security management. The second goal is to provide dynamic access control for Web service applications. The third goal is to provide an access control framework for Semantic Web services. In this thesis, an Authorization-Function-Based Role-based Access Control (FB-RBAC) model is proposed for controlling enterprise systems at the application level.

182p runthenight07 01-03-2023 15 3   Download

This project will investigate of the effects of applying scientific modes of analysis to the process of artistic production. Methodologies derived from the disciplines of classification and taxonomy will be used to examine the formal relationships between sculptural objects in respect to their conceptual and actual development. Evolutionary theory will be used as a model in this analysis. The project will investigate the complexity of the system and explore the effect of the intervention of scientific methods on artistic production.

296p runthenight07 01-03-2023 11 3   Download

The design proposed in this thesis aims to reduce the distortion in Class-D Amplifier output at the cost of increased complexity in the implementation. The thesis is focussed on the DSP components of the unique design. State-ofthe-art FPGAs have been used as the implementation platform for these systems due to advantages such as abundant logic resources, ease of programming and re-configurability. The results demonstrate advantages of SWL processing systems in terms of efficient hardware utilization.

130p runthenight07 01-03-2023 7 3   Download

The study examined the effect of education decentralisation on the practice of community participation in the Philippines. Decentralisation, as an institutional reform initiative in education, is a complex and contested concept resulting in a wide range of responses that addresses system-wide issues to improve access and quality of education. It had been a consistent theme in education reform in recent decades and its introduction brought about several permutations in application and meaning that have achieved mixed results.

271p runthenight04 02-02-2023 5 1   Download

The world is becoming increasingly focused on an imperative to reduce the cost of services. Managers at this cutting edge of practical organizational development are trying many ways to achieve this. The major focus of this research uses a systems psychodynamic approach to investigate the role taken up by part-time contract managers in an Australian university. These part-time roles frequently fail in the longer term. This approach provides an understanding of the unconscious group dynamics that may cause the role to fail.

192p runthenight04 02-02-2023 16 4   Download

Modelling the diffusion of mobile commerce in a country is a difficult task due to the non-linear, complex and uncertain nature of its operating environment. Conventional analytical techniques are of limited use in this context, and a System Dynamics approach is more appropriate to model such a complex system.

295p runthenight04 02-02-2023 11 3   Download

This study uncovers a wide range of complex transport dynamics in transiently forced aquifers that has profound implications for the understanding and quantification of solute transport in these important groundwater systems. And the results in this thesis predict that complex transport structures and dynamics arise in natural transiently forced aquifers around the world. When such dynamics do arise, it will lead to mixing and reactive transport patterns that are very different from those predicted by conventional Darcy flow models.

154p runthenight04 02-02-2023 11 3   Download

This thesis contributes to a better understanding of the relationship between residential energy efficiency and health. The thesis argues that residential energy efficiency improvements are complex interventions in complex socio‐technical systems.

765p runthenight04 02-02-2023 23 5   Download

Research objectives of the thesis: Research the theories of complex fuzzy sets, complex fuzzy logic and measures based on complex fuzzy sets; research and development of fuzzy inference system based on complex fuzzy sets; research applied techniques to reduce rules, optimize fuzzy rules in complex fuzzy inference system; research on how to represent rules based on fuzzy knowledge graphs to reduce inference computation time for the test set and deal with the cases where the new dataset is not present in the training data set.

27p beloveinhouse01 15-08-2021 20 4   Download