Results 21 to 30 of about 1,916,405 (251)

Operational Modal Analysis for Seismic Protection of Structures [PDF]

, 2008
This thesis focuses on output-only modal identification tests and on the opportunities they provide in the field of seismic protection of structures. The problem of a good measurement process, in order to obtain high quality data and reliable results ...
Rainieri, Carlo
core   +1 more source

Structural Modal Parameter Identification Method Based on the Delayed Transfer Rate Function under Periodic Excitations

Mathematics, 2023
The dynamic response transfer rate function (TRF) is increasingly used in the field of structural modal parameter identification because it does not depend on the white noise assumption of the excitation.
Yanxin Xu, Dongjian Zheng, Chenfei Shao, Sen Zheng, Hao Gu   +4 more
doaj   +1 more source

Dynamic characteristics of offshore wind power with bucket foundation based on field tests

Yantu gongcheng xuebao
The offshore wind power structures bear complex environmental loads induced by winds and waves over the life time. Dynamic characteristic is an important basis for the safety assessment of the offshore wind power structures.
CAI Zhengyin, FAN Kaifang, ZHU Xun
doaj   +1 more source

Modal parameters identification of bridge by improved stochastic subspace identification method with Grubbs criterion

Measurement + Control, 2021
In the wind tunnel test of a long-span bridge model, to ensure that the dynamic characteristics of the model can satisfy the test design requirements, it is particularly important to accurately identify the modal parameters of the model.
Yulin Zhou, Xulei Jiang, Mingjin Zhang, Jinxiang Zhang, Hao Sun, Xin Li   +5 more
doaj   +1 more source

Application of Improved Combined Deterministic-Stochastic Subspace Algorithm in Bridge Modal Parameter Identification

Shock and Vibration, 2021
Modal parameter identification is considered to be one of the most important tasks in structural health monitoring because it provides a reliable reference for structural vibration control, damage severity, and operational state.
Peng Wen, Inamullah Khan, Jie He, Qiaofeng Chen   +3 more
doaj   +1 more source

Safety and Effectiveness of a High‐Dose, Tailored Tissue Plasminogen Activator Therapy Protocol: A Joint Pediatric Hematology and Cardiac ICU Quality Improvement Initiative Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric thromboembolism is increasingly encountered in critical care. Systemic thrombolysis with tissue plasminogen activator (tPA) facilitates vessel or valve patency, yet pediatric‐specific protocols remain undefined, and safety concerns persist. Objective To evaluate the efficacy and safety of a tailored, prolonged systemic tPA
Eran Shostak, Oded Gilad, Yael Feinstein, Sigal Nakav, Ofer Schiller, Joanne Yacobovich   +5 more
wiley   +1 more source

Identification of characteristic parameters of layered structures using modal parameters

Mechanical Engineering Journal
In this study, we present a method for determining parameters that are essential for evaluating the health of layered structures. This method uses modal parameters to identify characteristic parameters that can accurately reproduce the measured modal ...
Daiki TAJIRI, Shozo KAWAMURA
doaj   +1 more source

A new modal analysis method applied to changing machine tool using clustering

Advances in Mechanical Engineering, 2020
The states of the machine tool, such as the components’ position and the spindle speed, play leading roles in the change of dynamic parameters. However, the traditional modal analysis method that modal parameters manually identified from vibration signal
Xuchu Jiang, Xinyong Mao, Yingjie Chen, Caihua Hao   +3 more
doaj   +1 more source

Survival After Hematopoietic Stem Cell Transplantation in Diamond–Blackfan Anemia Syndrome: The Role of Iron Overload—A Systematic Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT We assessed the effect of iron overload (IO) on mortality and complications following hematopoietic stem cell transplantation (HSCT) in patients with Diamond–Blackfan anemia syndrome (DBAS) in a systematic review of individual participant data and cohort data from observational studies.
Geoffrey Z. L. Kuppens, Evangelia Kiakou, Lieke de Zwart, Maurizio Miano, Eduard J. van Beers, Marc Bierings, Marije Bartels   +6 more
wiley   +1 more source

OMA-Based Evaluation of Seismic Damper Retrofitting Effects on the Dynamic Characteristics of a Scaled Steel Frame Structure

Buildings
Seismic retrofitting is widely used to enhance the dynamic performance of steel structures. This study experimentally investigates the effect of seismic damper retrofitting on a scaled steel frame using ambient vibration testing.
Sertaç Tuhta, Furkan Günday, Varol Koç, Zihni Zerin   +3 more
doaj   +1 more source