Long-term Reliability of Electrophysiologic Response Control Parameters

2002 ◽  
Vol 19 (1) ◽  
pp. 61-66 ◽  
Author(s):  
A. J. Fallgatter ◽  
D. R. Aranda ◽  
A. J. Bartsch ◽  
M. J. Herrmann
Keyword(s):  
Control Parameters ◽  
Response Control

Optimal Capacity Planning of a Brewery’s Energy Supply Plant Using its Simulation Model Based on LabVIEW

1999 ◽  
Author(s):  
Takashi Shiba ◽  
Koichi Ito ◽  
Ryohei Yokoyama ◽  
Shigeru Sakashita
Keyword(s):  
Capacity Planning ◽  
Energy Supply ◽  
Numerical Study ◽  
Thermal Storage ◽  
Control Parameters ◽  
Storage Tanks ◽  
Equipment Operation ◽  
Optimal Capacity ◽  
Two Stages

Abstract An optimal capacity planning method is proposed for a brewery’s energy supply plant from the viewpoint of long-term economics. The proposed method is composed of two hierarchical stages. At the outer stage, equipment capacities and utility maximum demands of the brewery’s energy supply plant are optimized together with values of control parameters of thermal storage tanks by the sequential linear programming method. At the inner stage, the equipment operation of the plant for given energy demands is simulated on the basis of control rules using LabVIEW. Both two stages are interconnected so as to be compatible with each other. Through a numerical study, it is investigated how equipment capacities, utility maximum demands, and control parameters of thermal storage tanks influence the long-term economics of the plant. From the results, it is ascertained that the long-term economics can be improved using the proposed method.

scholarly journals Coordinated Sending-End Power System Frequency Regulation via UHVDC

Electronics ◽  
2021 ◽  
Vol 10 (16) ◽  
pp. 1909
Author(s):  
Qiaoming Shi ◽  
Hongqing Liu ◽  
Kai Liu ◽  
Yongping Wang ◽  
Qingwu Zhang ◽  
...  
Keyword(s):  
Frequency Response ◽  
Operating Conditions ◽  
Frequency Deviation ◽  
Frequency Regulation ◽  
Control Parameters ◽  
Response Control ◽  
Response Characteristics ◽  
Frequency Response Characteristics ◽  
System Frequency ◽  
Inertia Response

The continuous improvement of new energy penetration reduces the inertia of the system, which leads to the frequency deviation and the rate of change of frequency (RoCoF) being easily exceeded. To improve the frequency stability of sending-end power systems with large-scale renewable energy access via ultra-high voltage direct current (UHVDC), the coordinated frequency control for UHVDC participating in system frequency regulation (FR) including primary FR and system inertial response is presented. Based on the simplified system model, the mechanism of UHVDC participation in system frequency support and its influence on receiving-end system frequency response characteristics are analyzed. Compared with the inertia response and primary FR of traditional synchronous generators, the parameter calculating method of UHVDC coordinated frequency response control is proposed. Based on the system root trajectory analysis, the influence of the frequency response control parameters on the sending-end system’s stability is analyzed, and the constraints of UHVDC participating in the system frequency response control are analyzed. Then, based on the RTDS verification platform containing the Lingshao ±800 kV UHVDC control and protection system, the system frequency response characteristics under different control strategies, operating conditions and control parameters are verified and analyzed. The experimental results show that the UHVDC frequency coordinated control can effectively increase the equivalent inertia of the sending-end system, restrain the RoCoF and the frequency deviation, and increase the FR capability of the UHVDC system.

scholarly journals Research of the mathematical model of long-lasting armed conflict taking into account hereditarity

2021 ◽  
pp. 48-55
Author(s):  
И.С. Кокорев
Keyword(s):  
Mathematical Model ◽  
Fractional Derivative ◽  
Numerical Solution ◽  
Armed Conflict ◽  
Control Parameters ◽  
Generalized Model ◽  
The Difference ◽  
Lanchester Model ◽  
The Mathematical Model

Рассматривается обобщённая модель длительного вооруженного конфликта в условиях эредитарности. Ставится задача по обобщению классической модели Ланчестера и записывается в разностной подстановке через аппроксимацию дробной производной. Приводятся графики переходных процессов и фазовых траекторий, которые были построены с помощью численного решения в зависимости от различных значений управляющих параметров. A generalized model of a long-term armed conflict in conditions of heredity is considered. The problem is posed to generalize the classical Lanchester model and is written in the difference substitution through the approximation of the fractional derivative. The graphs of transient processes and phase trajectories are given, which were constructed using a numerical solution depending on various values of the control parameters.

Self-optimizing control parameters for minimizing ping-pong handover in Long Term Evolution (LTE)

2014 ◽  
Author(s):  
Mohammad Shahnoor Islam Khan ◽  
Md Mizanur Rahman ◽  
Kaamran Raahemifar ◽  
Jelena Misic ◽  
Vojislav B. Misic
Keyword(s):  
Long Term Evolution ◽  
Control Parameters ◽  
Term Evolution ◽  
Ping Pong ◽  
Optimizing Control

Jumps to Resonance: Long Chaotic Transients, Unpredictable Outcome, and the Probability of Restabilization

1993 ◽  
Vol 60 (3) ◽  
pp. 669-676 ◽  
Author(s):  
M. S. Soliman
Keyword(s):  
Nonlinear Oscillators ◽  
Potential Well ◽  
Control Parameters ◽  
Different Types ◽  
Indeterminate Case ◽  
Chaotic Transients ◽  
Long Term Behavior

For nonlinear oscillators with the ability to escape from a potential well, jumps to resonance from a fold can result in qualitatively different types of response. They may be safe where the system always restabilizes onto a oscillation within the well; unsafe where the system always escapes out of the well; or indeterminate where the outcome is unpredictable. In the indeterminate case, long chaotic transients may persist before the system decides to which long-term behavior it will settle upon. We determine at which control parameters indeterminate jumps occur. We also examine how the transients scale as well as the probability of restabilization after the bifurcation.

Therapy and prevention for mental health: What if mental diseases are mostly not brain disorders?

2019 ◽  
Vol 42 ◽  
Author(s):  
John P. A. Ioannidis
Keyword(s):  
Mental Health ◽  
Mental Disease ◽  
Brain Disorders ◽  
Social Stressors ◽  
Labor Education ◽  
Mental Diseases ◽  
Long Term Follow Up ◽  
Political Decisions

AbstractNeurobiology-based interventions for mental diseases and searches for useful biomarkers of treatment response have largely failed. Clinical trials should assess interventions related to environmental and social stressors, with long-term follow-up; social rather than biological endpoints; personalized outcomes; and suitable cluster, adaptive, and n-of-1 designs. Labor, education, financial, and other social/political decisions should be evaluated for their impacts on mental disease.

Conceptual short-term memory (CSTM) supports core claims of Christiansen and Chater

2016 ◽  
Vol 39 ◽  
Author(s):  
Mary C. Potter
Keyword(s):  
Working Memory ◽  
Rapid Serial Visual Presentation ◽  
Language Comprehension ◽  
Short Term Memory ◽  
Visual Presentation ◽  
Long Term Memory ◽  
Short Term ◽  
Term Memory ◽  
Use Of Knowledge

AbstractRapid serial visual presentation (RSVP) of words or pictured scenes provides evidence for a large-capacity conceptual short-term memory (CSTM) that momentarily provides rich associated material from long-term memory, permitting rapid chunking (Potter 1993; 2009; 2012). In perception of scenes as well as language comprehension, we make use of knowledge that briefly exceeds the supposed limits of working memory.

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