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352 results on '"Control systems -- Evaluation"'

2. Watchdog Calls Air Traffic Control Systems Critically Outdated

Author

Walker, Mark

Subjects
Control systems -- Evaluation, Airspace (Law) -- Evaluation, Air traffic control -- Evaluation, United States. Government Accountability Office -- Reports, United States. Federal Aviation Administration -- Evaluation
Abstract

A report by the Government Accountability Office said that the agency's heavy reliance on the systems could jeopardize the safety and efficiency of the nation's airspace. A federal watchdog raised [...]

Published
2024

3. India Ratings Downgrades Chetas Control System’s Bank Facilities to ‘IND BBB-’/Stable

Subjects
Control systems -- Evaluation, Banks (Finance) -- Evaluation, News, opinion and commentary
Abstract

India Ratings and Research (Ind-Ra) has downgraded Chetas Control Systems Private Limited’s (CCSPL) bank facilities’ ratings to ‘IND BBB-’ from ‘IND BBB’. The Outlook is Stable. Copyright © 2011-2022 pivotalsources.com. [...]

Published
2024

4. Janus International Group Announced Credit Rating Upgrade

Subjects
Control systems -- Evaluation, Credit ratings, Mutual fund industry, Chief financial officers, Company securities, General interest, News, opinion and commentary
Abstract

TEMPLE: Janus International Group, Inc. (NYSE: JBI) (Janus), a leading provider of access control technologies and building product solutions for the self-storage, commercial, and industrial sectors, today announced it has [...]

Published
2024

5. Janus International Group Announces Credit Rating Upgrade

Subjects
Moody's Investors Service Inc. -- Securities -- Forecasts and trends, Control systems -- Evaluation, Credit ratings -- Forecasts and trends, Mutual fund industry -- Forecasts and trends, Chief financial officers -- Forecasts and trends, Company securities, Market trend/market analysis, Business, Business, international
Abstract

TEMPLE, Ga. -- Janus International Group, Inc. (NYSE: JBI) ('Janus'), a leading provider of access control technologies and building product solutions for the self-storage, commercial, and industrial sectors, today announced [...]

Published
2024

6. Janus International Group Announced Credit Rating Upgrade

Subjects
Control systems -- Evaluation, Credit ratings, Mutual fund industry, Chief financial officers, Company securities, General interest, News, opinion and commentary
Abstract

TEMPLE: Janus International Group, Inc. (NYSE: JBI) (Janus), a leading provider of access control technologies and building product solutions for the self-storage, commercial, and industrial sectors, today announced it has [...]

Published
2024

7. Janus International Group Announces Credit Rating Upgrade

Subjects
Control systems -- Evaluation, Credit ratings -- Forecasts and trends, Mutual fund industry -- Forecasts and trends, Chief financial officers -- Forecasts and trends, Company securities, Market trend/market analysis, Business, Business, international
Abstract

TEMPLE, Ga. -- Janus International Group, Inc. (NYSE: JBI) ('Janus'), a leading provider of access control technologies and building product solutions for the self-storage, commercial, and industrial sectors, today announced [...]

Published
2024

8. Supply, Erection, Testing And Commissioning Of Various Ratings Of 48v Vrla Battery Sets And 25sq.mm Battery Cable Under Psd Funding Phase Ii For Renovation And Upgradation Of Protection And Control System Of Eht Substations In Aptransco

Subjects
Control systems -- Evaluation, Business, international
Abstract

Tenders are invited for Supply, Erection, Testing and Commissioning of various ratings of 48V VRLA Battery sets and 25Sq.mm Battery cable under PSD funding phase II for renovation and upgradation [...]

Published
2024

9. Fitch Affirms the Commercial Servicer Ratings of the Situs Companies

Subjects
Control systems -- Evaluation, Company securities, Company business management, General interest, News, opinion and commentary
Abstract

New York: Fitch Ratings has issued the following commentary: Fitch Ratings has affirmed the commercial primary servicer rating of Situs Asset Management LLC (SAM) at 'CPS2-' and the commercial special [...]

Published
2023

12. Up-rating with Performance Enhancement Package Supply of Parts Services and necessary Software Modification of the Control System of Gas Turbine Unit 5 of Lakwa Thermal Power Station, Maibella for Performance and Efficiency Improvement

Subjects
Control systems -- Evaluation, Natural gas -- Evaluation, Electric power production, Gas-turbines -- Evaluation, Business, international
Abstract

Tenders are invited for Up-rating with Performance Enhancement Package Supply of Parts Services and necessary Software Modification of the Control System of Gas Turbine Unit 5 of Lakwa Thermal Power [...]

Published
2023

13. Up-rating With Performance Enhancement Package Supply Of Parts Services And Necessary Software Modification Of The Control System Of Gas Turbine Unit 5 Of Lakwa Thermal Power Station, Maibella For Performance And Efficiency Improvement

Subjects
Control systems -- Evaluation, Natural gas -- Evaluation, Electric power production, Gas-turbines -- Evaluation, Business, international
Abstract

Tenders are invited for Up-rating with Performance Enhancement Package Supply of Parts Services and necessary Software Modification of the Control System of Gas Turbine Unit 5 of Lakwa Thermal Power [...]

Published
2023

14. India Ratings Upgrades Chetas Control Systems to 'IND BBB'|Stable

Subjects
Control systems -- Evaluation, News, opinion and commentary
Abstract

India Ratings and Research (Ind-Ra) has upgraded Chetas Control Systems Private Limited's (CCSPL) Long-Term Issuer Rating to 'IND BBB' from 'IND BB(ISSUER NOT COOPERATING)'. The Outlook is Stable. Copyright © [...]

Published
2023

15. Jefferies begins coverage with Buy rating on AeroVironment

Subjects
Control systems -- Evaluation, Robotics industry -- Reports, Robotics industry, General interest, News, opinion and commentary
Abstract

AeroVironment (NASDAQ:AVAV) earned its Buy rating in new coverage by analysts at Jefferies on Thursday. They said the maker of unmanned robots for the military is poised for double-digit sales [...]

Published
2023

16. Up-rating With Performance Enhancement Package (supply Of Parts, Services And Necessary Software Mofidicatlion Of The Control System Of Gas Turbine Unit-5

Subjects
Control systems -- Evaluation, Natural gas -- Evaluation, Gas-turbines -- Evaluation, Business, international
Abstract

Tenders are invited for UP-rating with performance enhancement package (supply of parts, services and necessary software mofidicatlion of the control system of gas turbine unit-5 Tender Value/EMD/Tender Fee/Submission/Opening dates are [...]

Published
2023

17. Up-rating With Performance Enhancement Package Supply Of Parts, Services And Necessary Software Modification Of The Control System Of Gas Turbine Unit 5 Of Lakwa Thermal Power Station Maibella For Performance And Efficiency Improvement

Subjects
Control systems -- Evaluation, Natural gas -- Evaluation, Electric power production, Gas-turbines -- Evaluation, Business, international
Abstract

Tenders are invited for Up-rating with Performance Enhancement Package Supply of Parts, Services and necessary Software Modification of the Control System of Gas Turbine Unit 5 of Lakwa Thermal Power [...]

Published
2023

18. Up Rating With Performance Enhancement Package Supply Of Parts, Services And Necessary Software Modification Of The Control System Of Gas Turbine Unit 5 Of Lakwa Thermal Power Station Maibella For Performance And Efficiency Improvement

Subjects
Control systems -- Evaluation, Natural gas -- Evaluation, Electric power production, Gas-turbines -- Evaluation, Business, international
Abstract

Tenders are invited for Up rating with performance enhancement package supply of parts, services and necessary software modification of the control system of gas turbine unit 5 of lakwa thermal [...]

Published
2023

19. Guiding Tianwen-1 to China's first successful Mars rover landing

Subjects
Control systems -- Evaluation, Mars (Planet) -- Discovery and exploration, Aerospace and defense industries, Astronomy, High technology industry, Telecommunications industry
Abstract

Beijing, China (SPX) Nov 30, 2021 Mars landing missions only succeed about half the time, a rate largely determined by the entry, descent and landing (EDL) phase, according to the [...]

Published
2021

20. The Klaran LA UVC LED from Crystal IS and Asahi Kasei has lifespan characterization data with an estimated L70 rating of 25,000 hours

Subjects
Asahi Kasei Corp., Light-emitting diodes -- Evaluation, Pesticides industry, Control systems -- Evaluation, Herbicides, Chemical industry, General interest, News, opinion and commentary
Abstract

GREEN ISLAND: Asahi Kasei and its subsidiary Crystal IS have released lifetime characterization data on their Klaran LA UVC LED, which supports a projected L70 lifetime of 25,000 hours. This [...]

Published
2023

22. Regulatory update: United States Nuclear Regulatory Commission has submitted (Fitch K L ) American Centrifuge Operating, LLC, Request for Extension of Interim Authority To Operate for the Distributed Control System and Process Telecommunication System

Subjects
United States. Nuclear Regulatory Commission -- Evaluation, Telecommunication systems -- Evaluation, Control systems -- Evaluation, Independent regulatory commissions, News, opinion and commentary
Abstract

Washington: United States Nuclear Regulatory Commission has issued the following document: Item ID: Accession Number: ML23027A011 Estimated Page Count: Availability: Publicly Available Author Name: Fitch K L AuthorAffiliation: American Centrifuge [...]

Published
2023

23. India Ratings Migrates Chetas Control Systems to Non-Cooperating Category

Subjects
Control systems -- Evaluation, News, opinion and commentary
Abstract

India Ratings and Research (Ind-Ra) has migrated Chetas Control Systems Private Limited's Long-Term Issuer Rating to the non-cooperating category. The issuer did not participate in the rating exercise despite continuous [...]

Published
2022

24. Guardian Eye buys IOT firm Activate Group

Subjects
Control systems -- Evaluation, Company business management, Company acquisition/merger, Telecommunications industry
Abstract

Guardian Eye, a Vivica Group (formerly Vox) company that offers remote CCTV monitoring, access control and industrial control systems, has acquired internet of things (IOT)-as-a-service provider Activate Group. In a [...]

Published
2022

25. Sidus Space Selected L3Harris Mission Critical Operations Center Software for LizzieSatTM Constellation

Subjects
Command and control systems -- Evaluation, Control systems -- Evaluation, Artificial satellites -- Evaluation, Business, international
Abstract

CAPE CANAVERAL, Fla.: Sidus Space, Inc. (NASDAQ:SIDU), a Space-as-a-Service satellite company focused on commercial satellite design, manufacture, launch, and data collection, is pleased to announce its selection of L3Harris Technologies [...]

Published
2022

26. Sidus Space Selects L3Harris Mission Critical Operations Center Software for LizzieSatTM Constellation

Subjects
Command and control systems -- Evaluation, Control systems -- Evaluation, Satellite industry, Artificial satellites -- Evaluation, Business, Business, international
Abstract

CAPE CANAVERAL, Fla. -- Sidus Space, Inc. (NASDAQ:SIDU), a Space-as-a-Service satellite company focused on commercial satellite design, manufacture, launch, and data collection, is pleased to announce its selection of L3Harris [...]

Published
2022

27. IL&FS Fallout: Mother Dairy's Rating Downgraded Due to Weakness in its Internal Control Systems

Subjects
Infrastructure Leasing & Financial Services Ltd., Dairy products industry -- International economic relations, Financial services -- Evaluation -- International economic relations, Internal control (Accounting), Control systems -- Evaluation, Lease and rental services -- Evaluation -- International economic relations, Banks (Finance), Vegetables, Leases, Infrastructure (Economics), Financial services industry, Economics
Abstract

Byline: Moneylife Digital Team The fallout of Infrastructure Leasing and Financial Services Ltd (IL&FS) continues to hamper other entities as well. Recently, CARE Ratings downgraded to AA+, its long term [...]

Published
2019

28. The right coating opens global doors: Indiana manufacturer helps fight biodiesel's effect on paint

Author

Pennington, Tim

Subjects
Control systems -- Evaluation, Biodiesel fuels, Fuel industry, Coatings -- Evaluation, Business, Metals, metalworking and machinery industries
Abstract

Biodiesel is known as an attractive alternative to traditional petroleum diesel fuel. It's clean burning, renewable and gentler on our fragile planet. But when it comes to biodiesel's effect on [...]

Published
2015

29. Regulatory update: United States Nuclear Regulatory Commission has submitted ( Fitch K L) American Centrifuge Operating, LLC, Final Revision to SP-3605-0043, Classified Distributed Control System Information System Security Plan

Subjects
United States. Nuclear Regulatory Commission -- Safety and security measures, Control systems -- Evaluation, Independent regulatory commissions -- Safety and security measures, News, opinion and commentary
Abstract

Washington: United States Nuclear Regulatory Commission has issued the following document: Item ID: Accession Number: ML21252A051 Estimated Page Count: 2 Availability: Publicly Available Author Name: Fitch K L AuthorAffiliation: American [...]

Published
2021

30. India Ratings Affirms Chetas Control Systems at 'IND BBB'|Stable

Subjects
Control systems -- Evaluation, News, opinion and commentary
Abstract

India Ratings and Research (Ind-Ra) has affirmed Chetas Control Systems Private Limited's (CCSPL) Long-Term Issuer Rating at 'IND BBB'. The Outlook is Stable. Copyright © 2011-2021 pivotalsources.com. All rights reserved. [...]

Published
2021

31. India Ratings Migrates Chetas Control Systems to Non-Cooperating Category

Subjects
Control systems -- Evaluation, News, opinion and commentary
Abstract

India Ratings and Research (Ind-Ra) has migrated Chetas Control Systems Private Limited's Long-Term Issuer Rating to the non-cooperating category. The issuer did not participate in the rating exercise despite continuous [...]

Published
2021

37. Institutional ownership and internal control material weakness

Author

Tang, Alex P. and Xu, Li

Subjects
Internal control (Accounting) -- Analysis, Control systems -- Evaluation, Corporate governance -- Analysis, Business, Economics
Abstract

In this paper we examine the relationship between the composition of a firm's institutional ownership and the existence of internal control material weaknesses (ICMWs) under SOX Sections 302 and 404. We find a significantly positive relationship between the level of total institutional ownership and ICMW existence. The positive relationship is mainly driven by the transient investors who, with short-term investment horizons, may have little incentive to engage in costly and effective monitoring. When partitioning ICMWs into pervasive (more severe) and contained (less severe) types, we find that firms with pervasive ICMWs are associated with a lower (higher) level of dedicated (transient) institutional ownership. We also find that firms with pervasive ICMWs have significantly fewer resources to invest in internal control systems than do firms with contained ICMWs., Introduction In this study we investigate the association between a firm's institutional ownership and the existence of internal control material weakness (ICMW hereafter) under Sections 302 and 404 of the [...]

Published
2010

38. Observer-controller digital PLL

Author

Won Namgoong

Subjects
Control systems -- Evaluation, Feedback (Electronics) -- Analysis, Kalman filtering -- Usage, Phase-locked loops -- Design and construction, Business, Computers and office automation industries, Electronics, Electronics and electrical industries
Published
2010

44. Electromyography and the evolution of motor control: limitations and insights

Author

Herrel, Anthony, Schaerlaeken, Vicky, Ross, Callum, Meyers, Jay, Nishikawa, Kiisa, Abdala, Virginia, Manzano, Adriana, and Aerts, Peter

Subjects
Control systems -- Evaluation, Electromyography -- Usage, Central nervous system -- Properties, Musculoskeletal system -- Control, Motor ability -- Control, Kinesiology -- Research, Zoology and wildlife conservation
Abstract

Electromyography (EMG), or the study of muscle activation patterns, has long been used to infer central nervous system (CNS) control of the musculoskeletal system and the evolution of that control. As the activation of the muscles at the level of the periphery is a reflection of the interaction of descending influences and local reflex control, EMG is an important tool in integrated investigations of the evolution of coordination in complex, musculoskeletal systems. Yet, the use of EMG as a tool to understand the evolution of motor control has its limitations. We here review the potential limitations and opportunities of the use of EMG in studying the evolution of motor control in vertebrates and provide original previously unpublished data to illustrate this. The relative timing of activation of a set of muscles can be used to evaluate CNS coordination of the components in a musculoskeletal system. Studies of relative timing reveal task-dependent variability in the recruitment of different populations of muscle fibers (i.e., different fiber types) within a single muscle, and left-right asymmetries in activation that need to be taken into account in comparative studies. The magnitude of muscle recruitment is strongly influenced by the instantaneous demands imposed on the system, and is likely determined by local reflex-control systems. Consequently, using EMG to make meaningful inferences about evolutionary changes in musculoskeletal control requires comparisons across similar functional tasks. Moreover, our data show that inferences about the evolution of motor control are limited in their explanatory power without proper insights into the kinematics and dynamics of a system.

Published
2008

45. Are Love Island stars really the best people to advise us on test and trace? Our government is surely marooned and desperate when it recruits reality TV stars to explain its coronavirus control system; Our government is surely marooned and desperate when it recruits reality TV stars to explain its coronavirus control system

Subjects
Coronaviruses, Reality television programs, Control systems -- Evaluation, Industry hiring, News, opinion and commentary, Instagram (Online service) -- Evaluation
Abstract

Name: Chris Hughes. Age: 27. Appearance: Trustworthy, sensible, reliable -- this is the man advising you on the government's test-and-trace scheme after all. Oh, I thought you meant a different [...]

Published
2020

46. Parameterization of suboptimal solutions of the Nehari problem for infinite-dimensional systems

Author

Kashima, Kenji, Yamamoto, Yutaka, and Ozbay, Hitay

Subjects
Control systems -- Evaluation, Control theory -- Research, Parameter estimation -- Analysis
Abstract

The Nehari problem plays an important role in [H.sup.[infinity]] control theory. It is well known that [H.sup.[infinity]] control problem can be reduced to solving this problem. This note gives a parameterization of all suboptimal solutions of the Nehari problem for a class of infinite-dimensional systems. Many earlier solutions of this problem are seen to be special cases of this new parameterization. It is also shown that for finite impulse response systems this parameterization takes a particularly simple form. Index Terms--Delay systems, [H.sup.[infinity]]-control, infinite-dimensional systems, Nehari problem.

Published
2007

47. Analysis of power lines uncertain parameter influence on power line communications

Author

Barmada, Sami, Musolino, Antonino, Raugi, Marco, and Tucci, Mauro

Subjects
Parameter estimation -- Methods, Electric power transmission -- Control, Control systems -- Sensitivity, Control systems -- Evaluation, Business, Computers, Electronics, Electronics and electrical industries
Abstract

In this paper, we analyze the effects of power lines parameters' uncertainties on the efficiency of a PowerLine Communication (PLC) system. An estimate of the upper and lower bounds' system response due to the uncertainties is given. The analyzed system is schematized as a connection of multiport devices described by their scattering parameter matrices and an adjoint method for sensitivity calculations, based on the use of a wavelet expansion, is used to determine the bounds. The wavelet based sensitivity analysis allows a direct determination of the time domain sensitivity avoiding computationally expensive convolution integral calculations; in addition a fast and accurate bounds calculation is obtained avoiding statistical Monte Carlo simulations. The bounds determination allows the estimate of noteworthy quantities for the tuning of currently used modulation schemes for PLC such as orthogonal frequency-division modulation. Index Terms--Power lines communication, sensitivity analysis, uncertain parameters.

Published
2007

48. Operation logic proposed for time overcurrent relays

Author

Conde, Arturo and Vazquez, Ernesto

Subjects
Protective relays -- Design and construction, Electric currents -- Control, Control systems -- Sensitivity, Control systems -- Evaluation, Business, Computers, Electronics, Electronics and electrical industries
Abstract

This paper presents a new logic of operation for time overcurrent relays. With the application of the proposed technique, the sensitivity of time overcurrent relays is increased. In order to obtain this, the relay operates with a dynamic pickup setting, such as load current. Additionally, fast operation of overcurrent relays is obtained. The functional structure is described and the logic of overcurrent relay is evaluated under different operative states. We describe the functional structure of the proposed relay and its implementation in laboratory tests. Index Terms--Overcurrent relay, pickup current, sensitivity.

Published
2007

49. Analysis of closed-loop performance and frequency-domain design of compensating filters for sliding mode control systems

Author

Boiko, Igor

Subjects
System design, Control systems -- Design and construction, Control systems -- Evaluation, System design -- Methods, Systems analysis -- Methods, Electric filters -- Design and construction
Abstract

For a sliding mode (SM) system containing parasitic dynamics, a model of chattering and a model of the averaged motions of the order equal to the original order of the system are obtained via the use of the locus of a perturbed relay system (LPRS) method. The latter model proves that the averaged motions in an SM system differ from those in the reduced-order model. In particular, such phenomena as the nonideal disturbance rejection and the nonideal input tracking are observed. It is shown that the non-reduced-order model transforms into the reduced one when the parasitic dynamics are removed. Yet, the chattering and the averaged motion--being the two components of the motion in the SM system--belong to two different frequency ranges (spectra). As a result, a frequency characteristic shaping aimed at achieving the desired frequency of chattering and enhancing the closed-loop performance becomes possible. This opportunity is explored in this paper. Examples that illustrate the proposed approach are provided. Index Terms--Compensation, discontinuous control, frequency-domain analysis, sliding mode.

Published
2007

50. Approximability properties for second-order sliding mode control systems

Author

Bartolini, Giorgio, Punta, Elisabetta, and Zolezzi, Tullio

Subjects
Control systems -- Design and construction, Control systems -- Evaluation, Approximation theory -- Methods
Abstract

New definitions of approximability are presented for nonlinear second-order sliding mode control systems. Such robustness properties are compared with those already known for first-order methods. Sufficient conditions are obtained for second-order regularization, a sliding error estimate is derived, and some relevant examples are discussed. Index Terms--Approximability, nonlinear uncertain control systems, regularization, second-order sliding mode control.

Published
2007

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