CIM-SECDED: A 40nm 64Kb Compute In-Memory RRAM Macro with ECC Enabling Reliable Operation

The article contains the comparative results of the experimental and calculated research of the strength of a pipeline with such defects as “metal loss” and “dent with groove”. Two coils with diameter of 820 mm and the thickness of 9 mm of 19G steel were used for full-scale pipe sample production. One of the coils was intentionally damaged by machining, which resulted in “metal loss” defect, the other one was dented (by press machine) and got groove mark (by chisel). The testing of pipe samples was performed by applying static internal pressure to the moment of collapse. The calculation of deterioration pressure was carried out with the use of national and foreign methodical approaches. The calculated values of collapsing pressure for the pipe with loss of metal mainly coincided with the calculation experiment results based on Russian method and ASME B31G. In case of pipe with dent and groove the calculated value of collapsing pressure demonstrated greater coincidence with Russian method and to a lesser extent with API 579/ASME FFS-1. In whole, all calculation methods demonstrate sufficient stability of results, which provides reliable operation of pipelines with defects.

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Data Center Equipment Reliability Concerns—Contamination Issues, Standards Actions, and Case Studies

ISTFA 2013: Conference Proceedings from the 39th International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa2013p0438 ◽

2013 ◽

Author(s):

Chris Muller ◽

Chuck Arent ◽

Henry Yu

Keyword(s):

Case Studies ◽

Data Center ◽

Data Centers ◽

Electronic Equipment ◽

Circuit Board ◽

Lead Free ◽

Reliable Operation ◽

Contamination Assessment ◽

Equipment Reliability ◽

Equipment Failures

Abstract Lead-free manufacturing regulations, reduction in circuit board feature sizes and the miniaturization of components to improve hardware performance have combined to make data center IT equipment more prone to attack by corrosive contaminants. Manufacturers are under pressure to control contamination in the data center environment and maintaining acceptable limits is now critical to the continued reliable operation of datacom and IT equipment. This paper will discuss ongoing reliability issues with electronic equipment in data centers and will present updates on ongoing contamination concerns, standards activities, and case studies from several different locations illustrating the successful application of contamination assessment, control, and monitoring programs to eliminate electronic equipment failures.

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Selecting and sizing transformer and AC cable for PV system's safe and reliable operation

International Transactions on Electrical Energy Systems ◽

10.1002/2050-7038.12200 ◽

2019 ◽

Vol 30 (2) ◽

Author(s):

Irtaza M. Syed ◽

Mukhtar Ullah ◽

Ataul Aziz Ikram ◽

Muhammad Naveed Aman

Keyword(s):

Reliable Operation

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Vibration suppression of structures using tuned mass damper technology: A state-of-the-art review

Journal of Vibration and Control ◽

10.1177/1077546320984305 ◽

2021 ◽

pp. 107754632098430

Author(s):

Fan Yang ◽

Ramin Sedaghati ◽

Ebrahim Esmailzadeh

Keyword(s):

Mathematical Modeling ◽

Vibration Suppression ◽

State Of The Art ◽

Optimization Procedure ◽

Tuned Mass Damper ◽

Structural Vibration ◽

Practical Realization ◽

Reliable Operation ◽

Mass Damper ◽

Structural Vibration Suppression

To date, considerable attention has been paid to the development of structural vibration suppression techniques. Among all vibration suppression devices and techniques, the tuned mass damper is one of the most promising technologies due to its mechanical simplicity, cost-effectiveness, and reliable operation. In this article, a critical review of the structural vibration suppression using tuned mass damper technology will be presented mainly focused on the following four categories: (1) tuned mass damper technology and its modifications, (2) tuned mass damper technology in discrete and continuous structures (mathematical modeling), (3) optimization procedure to obtain the optimally designed tuned mass damper system, and (4) active tuned mass damper and semi-active tuned mass damper with the practical realization of the tuned mass damper technologies.

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A Novel Domain Adaptation-Based Intelligent Fault Diagnosis Model to Handle Sample Class Imbalanced Problem

Sensors ◽

10.3390/s21103382 ◽

2021 ◽

Vol 21 (10) ◽

pp. 3382

Author(s):

Zhongwei Zhang ◽

Mingyu Shao ◽

Liping Wang ◽

Sujuan Shao ◽

Chicheng Ma

Keyword(s):

Fault Diagnosis ◽

Domain Adaptation ◽

Class Imbalance ◽

Rolling Bearing ◽

Industrial Applications ◽

Mechanical Equipment ◽

Reliable Operation ◽

Cross Domain ◽

Geometric Difference ◽

Model Generalization

As the key component to transmit power and torque, the fault diagnosis of rotating machinery is crucial to guarantee the reliable operation of mechanical equipment. Regrettably, sample class imbalance is a common phenomenon in industrial applications, which causes large cross-domain distribution discrepancies for domain adaptation (DA) and results in performance degradation for most of the existing mechanical fault diagnosis approaches. To address this issue, a novel DA approach that simultaneously reduces the cross-domain distribution difference and the geometric difference is proposed, which is defined as MRMI. This work contains three parts to improve the sample class imbalance issue: (1) A novel distance metric method (MVD) is proposed and applied to improve the performance of marginal distribution adaptation. (2) Manifold regularization is combined with instance reweighting to simultaneously explore the intrinsic manifold structure and remove irrelevant source-domain samples adaptively. (3) The ℓ2-norm regularization is applied as the data preprocessing tool to improve the model generalization performance. The gear and rolling bearing datasets with class imbalanced samples are applied to validate the reliability of MRMI. According to the fault diagnosis results, MRMI can significantly outperform competitive approaches under the condition of sample class imbalance.

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A Universal Voltage Dip and Interruption Compensator for Reliable Operation of Critical Electrical Installations at PJSC Mosénergo

Power Technology and Engineering ◽

10.1007/s10749-021-01329-9 ◽

2021 ◽

Author(s):

S. N. Lenev ◽

A. V. Okhlupkov ◽

V. V. Guzhavina ◽

G. B. Nesterenko ◽

D. V. Armeev ◽

...

Keyword(s):

Reliable Operation ◽

Voltage Dip

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Radio Quality Estimation on Drone Flight Sites for High Reliable Operation

2020 23rd International Symposium on Wireless Personal Multimedia Communications (WPMC) ◽

10.1109/wpmc50192.2020.9309461 ◽

2020 ◽

Author(s):

Nobuo Suzuki ◽

Hiromi Matsuno ◽

Tatsuya Yoshioka ◽

Toshinori Suzuki

Keyword(s):

Reliable Operation ◽

Quality Estimation

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Current Design Rules for Welding of Wind Energy Structures for Arctic Conditions

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.822.452 ◽

2019 ◽

Vol 822 ◽

pp. 452-458

Author(s):

Sergey Lopaev ◽

Pavel Layus ◽

Paul Kah ◽

Sergey Parshin

Keyword(s):

Wind Energy ◽

Structural Integrity ◽

Structural Characteristics ◽

Welding Process ◽

Climatic Conditions ◽

Welding Parameters ◽

Reliable Operation ◽

Arctic Conditions ◽

Current Design ◽

Standards And Guidelines

An article presents a review of current standards and guidelines in the field welding fabrication requirements for wind energy structures in arctic conditions. Extreme climatic conditions, such as Arctic, have a strong influence on the requirements for wind turbines structural characteristics, materials and fabrication methods. Special attention has to be paid for selecting steels with suitable mechanical properties, processing methods and delivery conditions. Additionally, it is highly important to select proper welding process and welding parameters, so that the structural integrity and reliable operation can be achieved.

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