Results 51 to 60 of about 17,210 (258)

A Method to Obtain Frequency Response Functions of Operating Mechanical Systems Based on Experimental Modal Analysis and Operational Modal Analysis

Machines
The characteristics of a mechanical structure under operating conditions may differ from those in a static state. It is often more desirable to obtain the frequency response function (FRF) of the operating structure in engineering applications.
Cunrui Shen, Chihua Lu
doaj   +1 more source

Vibration Analysis of Aeroengine Blisk Structure Based on a Prestressed CMS Super-Element Method

Shock and Vibration, 2016
For vibration analysis of aeroengine blisk structure, a prestressed component modal synthesis (CMS) super-element method is put forward with the fixed interface prestressing and free interface super-element approach.
Zhijun Li, Wenjun Yang, Huiqun Yuan
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Joint Camera-LiDAR Scene Synthesis and Perception for Autonomous Driving

IEEE Access
The advancement of autonomous driving and embedded AI systems has intensified the need for large-scale, richly annotated multimodal datasets encompassing RGB images, semantic labels, and 3D LiDAR data.
S. Raghavendra, S. K. Abhilash, Venu Madhav Nookala, P. V. Arun Kumar, B. N. Anoop, Ramyashree   +5 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

An efficient Generalized Geometry Contact algorithm including modal reduction flexible bodies

Mechanical Engineering Journal, 2017
In the MFBD (Multi-Flexible-Body Dynamics) (RecurDyn, 2017), the contact analysis is very important. To develop the general purpose contact algorithm for rigid and flexible bodies, the Generalized Geometry Contact algorithm, which is called ‘Geo Contact ...
Ho-Young CHA, Juhwan CHOI, Sungsoo RHIM, Jin Hwan CHOI   +3 more
doaj   +1 more source

Type Synthesis Based on Modular Combination with Virtual Rotation Center and Application

International Journal of Rotating Machinery, 2022
Type synthesis of mechanical structure is of great significance to the realization of mechanism target function, systematization, and stability of mechanical device.
Xinning Li, Qishuo Zhang, Zongsu Zhang, Xianhai Yang, Hu Wu, Yongbo Li, Hailong Qu   +6 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Substructure elimination and binding method for vibration systems governed by a one-dimensional wave equation

Mechanical Engineering Journal
This paper presents a vibration analysis using the substructure elimination and binding method for vibration systems governed by a one-dimensional wave equation.
Keisuke YAMADA, Jinchen JI
doaj   +1 more source