Results 11 to 20 of about 4,412,175 (293)

American Recovery and Reinvestment Act lobbyists/consultants weekly log

open access: yes, 2010
Updated weekly; Began in 2009.; Title from home page last modified 10/20/2010 (publisher's Web site, viewed Nov. 1, 2010).; "Beginning the week of March 23, 2009, the State of Connecticut will be posting a log every Monday listing any contact Executive ...

core   +13 more sources

A Method for Constructing Automatic Rolling Bearing Fault Identification Model Based on Refined Composite Multi-Scale Dispersion Entropy

open access: yesIEEE Access, 2021
In this paper, one of most widely utilized rolling bearings in rotating machinery is selected as the research object. Automatic rolling bearing fault identification model including support vector machine (SVM) training module, fault classification ...
Qingfeng Wang   +4 more
doaj   +1 more source

Data-Driven Incipient Fault Prediction for Non-Stationary and Non-Linear Rotating Systems: Methodology, Model Construction and Application

open access: yesIEEE Access, 2020
Many researches have been carried out on incipient fault prediction technology for key machine components (such as bearings) based on historical and real-time condition monitoring data.
Qingfeng Wang   +3 more
doaj   +1 more source

Shelter Self-Recovery: The Experience of Vanuatu

open access: yesArchitecture, 2022
This paper draws from a research project that explored the lived reality of communities in Vanuatu recovering from major disasters to understand the impacts of shelter interventions by humanitarian organizations. It focuses on “shelter self-recovery”, anapproach followed by organizations after recent disasters.
Iftekhar Ahmed, Charles Parrack
openaire   +2 more sources

Online Incipient Fault Detection Method Based on Improved ℓ1 Trend Filtering and Support Vector Data Description

open access: yesIEEE Access, 2021
Poor model generalization, missing or false alarms, and heavy dependence on expert’s experience are some of the major problems which exist in traditional incipient fault detection (IFD) methods.
Qingfeng Wang   +3 more
doaj   +1 more source

Research on a Multisource Domain Improved Fault Diagnosis Method of the Rotor System

open access: yesIEEE Access, 2022
In this paper, rotor systems of the rotating machinery such as steam turbines, centrifugal compressors and flue gas turbines are selected as the research objects.
Yang Xiao   +3 more
doaj   +1 more source

Weighted K-NN Classification Method of Bearings Fault Diagnosis With Multi-Dimensional Sensitive Features

open access: yesIEEE Access, 2021
Research on the intelligent fault diagnosis method of rolling bearing based on laboratory data has made some achievements. However, due to the change of working conditions and the lack of historical data of the same equipment in the actual diagnosis ...
Qingfeng Wang   +4 more
doaj   +1 more source

Creating an ecosystem that enables acceleration of housing self-recovery in the post-disaster context [PDF]

open access: yesE3S Web of Conferences, 2023
During reconstruction, the recovery actors might overlook the connections between external and internal push factors. These factors can positively impact the processes to accelerate and produce long-term benefits beyond construction.
Soelaksono Arwin
doaj   +1 more source

Dynamic Analysis of Integrally Geared Compressors with Varying Workloads

open access: yesShock and Vibration, 2016
Integrally geared compressors are characterized by compact and high efficiency machines, which are widely used in modern processing industries. As an important part of integrally geared compressors, a geared rotor-bearing system exhibits complicated ...
Ming Zhang, Zhinong Jiang, Jinji Gao
doaj   +1 more source

A Review on Self-Recovery Regulation (SR) Technique for Unbalance Vibration of High-End Equipment

open access: yesChinese Journal of Mechanical Engineering, 2020
The high-end equipment represented by high-end machine tools and aero-engines is the core component of the national intelligent manufacturing plan, and the mass unbalance is the main reason for its excessive vibration, that seriously impacts the ...
Xin Pan   +4 more
doaj   +1 more source

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