Modern Control
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Author(s):  
Ehsan Ranjbar ◽  
Mohammad Bagher Menhaj ◽  
Amir Abolfazl Suratgar ◽  
Javier Andreu-Perez ◽  
Mukesh Prasad

Life ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 557
Author(s):  
Anurag S. Rathore ◽  
Somesh Mishra ◽  
Saxena Nikita ◽  
Priyanka Priyanka

Typical bioprocess comprises of different unit operations wherein a near optimal environment is required for cells to grow, divide, and synthesize the desired product. However, bioprocess control caters to unique challenges that arise due to non-linearity, variability, and complexity of biotech processes. This article presents a review of modern control strategies employed in bioprocessing. Conventional control strategies (open loop, closed loop) along with modern control schemes such as fuzzy logic, model predictive control, adaptive control and neural network-based control are illustrated, and their effectiveness is highlighted. Furthermore, it is elucidated that bioprocess control is more than just automation, and includes aspects such as system architecture, software applications, hardware, and interfaces, all of which are optimized and compiled as per demand. This needs to be accomplished while keeping process requirement, production cost, market value of product, regulatory constraints, and data acquisition requirements in our purview. This article aims to offer an overview of the current best practices in bioprocess control, monitoring, and automation.


2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Nguyen Cong Danh

Gimbal or an inertial stabilization platform (ISP) is used to stabilize the line of sight of an object or device that is tracking another object (LOS) with stationary or moving targets or targets moving forward. It can achieve precision when there is isolation between the tracker and the gimbal base. Studying the 2-axis tilt angle to create gimbal stability, especially in a camera, is a compelling subject for the automation field, as it is controlled by modern controllers. This paper presents a two-axis gimbal loop in which the LOS rate is stable, and I proceed to examine the stability of the system to get a better overview of the system properties. Through examining the stability of the system, I can choose from modern control methods to control them. The stability of the system used from the two analysis methods I present below gives me a visual view from the results achieved. The simulation is performed in MATLAB.


Author(s):  
Alevtina Gregorovna Kozhevnikova ◽  

The article presents the monitoring of sucking pests of vegetable crops of the families Aphrophoridae and Cicadellidae from the Auchenorrhyncha series, their sistematic position, food connections, harmfulness, and modern control measures are recommended.


Author(s):  
Gopal C Nanda ◽  
Debashree Priyadarshini ◽  
Binodini Tripathy

Rhinitis is a very common and complicating disease condition usually affects more than 90% of the population varying from simple sneezing to multiple complications along with frequency. Usually, it affects due to pollution further follower by bacterial infection in naso-pharyngeal track. Most often it is managed instantly with anti-allergic medications like nasal drop & tablet, syrup, etc. but due to suppression of condition for a longer period it remains dormant causing multiple complications in future. Looking to the condition a nasal drop prepared from few herbs processed with mustard oil was taken into multiple clinico – experimental trail both invivo & invitro study to access the efficacy. The nasal drop in the form of Nasya i.e., modified Marichyadi taila (MMT) in management of Pratishyaya (rhinitis) has been evaluated from different angle i.e., clinical, radiological, biochemical, biological and anti-bio gram study etc. show significant result in comparison with modern control drug Otrivin. After comparing both the results it has found that MMT was more effective than Otrivin as because of its multi-stained bactericidal & virucidal effect along with maximum relief in clinical sign & symptoms. It was also observed that the drug is effective from 48-72hrs & to be continued for one to two weeks for optimum relief. Efforts have been taken to highlight the specific findings pretraining to different study in the present paper.


2021 ◽  
pp. 0958305X2199592
Author(s):  
Shrabani Sahu ◽  
Sasmita Behera

To meet the energy demand, over and above to build a clean pollution-free environment, wind energy is playing an incredible role. The development in the field of wind power generation is rising speedily. Operation and maintenance of the nonlinear wind energy conversion system (WECS) with stochastic wind input are pivoted on the control techniques used for the overall system. Many research works are undergoing which are based on various control schemes for different parts of WECS. Thus, this paper presents a review of advanced modern control strategies utilized in different parts of WECS with two popular types of grid-connected generators to achieve the desired power level and fault-free operation developed in the last 15 years. The review paper intends to provide a suitable reference for further research in the field of wind energy to have a bird’s eye view from the tabulated information and presentation.


2021 ◽  
Vol 640 (7) ◽  
pp. 072013
Author(s):  
I A Avtsinov ◽  
A N Gavrilov ◽  
N V Sukhanova ◽  
Yu E Kozhevnikov ◽  
S A Nickel ◽  
...  

Author(s):  
Michael R. Gottfredson

AbstractContemporary research from around the world provides a body of consistent findings, making it an indispensable tool for the evaluation of crime theory. To be valid, general theories of crime must now be able to accommodate the results of this cross-national research. Modern Control Theory is used as an illustration for conceptualizing this body of research. Research from three critical areas relevant to general theories of crime are used to illustrate the critical nature of this research: (1) results from self-report surveys of offending and victimization; (2) research on the lack of effectiveness of criminal justice sanctions in affecting rates of crime and interpersonal violence; and (3) prevention research that is focused both on early childhood and on the settings in which much crime occurs. Each is consistent with the expectations of Modern Control Theory (Gottfredson and Hirschi in Modern control theory and the limits of criminal justice, Oxford University Press, New York, 2019) and each demands the attention of any general theory purporting to explain crime and interpersonal violence.


Author(s):  
Muhammad Hamza Shahbaz ◽  
Arslan Ahmed Amin

: Because of the consistently expanding energy request, the introduction of a decentralized micro-grid based on energy resources will soon be the most exciting development in the power system. Micro-grids, which are mainly based on inverters, are becoming more popular as they can handle different forms of renewable energy effectively. However, one of the most challenging areas of research is their control. In the last few years, many control strategies have been developed. In this review, different control methods have been discussed that apply to the micro-grid system. Furthermore, the comparative analysis of classical and modern control strategies is also considered. This survey guides the new researchers about all available control strategies and room for improvement towards the optimal solution of the micro-grid control techniques. It also identifies several research gaps and future trends therein as well as provides a solution to manage problems in MGs. The strategies are then compared based on their applicability to different control requirements.


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