Results 21 to 30 of about 21,404 (260)

An experimental investigation of contact characteristics of crown gear coupling with angular misalignment

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
Crown gear couplings are commonly applied to transfer rotary motion and torsion from one rotating component to another under a certain misalignment angle.
Yabin GUAN, Jigang CHEN, Hao CHEN, Shengyang HU, Xuan LIU   +4 more
doaj   +1 more source

Organoid models of the pituitary gland in health and disease

Frontiers in Endocrinology, 2023
The pituitary gland represents the hub of our endocrine system. Its cells produce specific hormones that direct multiple vital physiological processes such as body growth, fertility, and stress.
Emma Laporte, Hugo Vankelecom
doaj   +1 more source

Mobile logistics hubs prepositioning for emergency preparedness and response in Nepal [PDF]

Journal of Humanitarian Logistics and Supply Chain Management, 2020
Purpose – The purpose of this study is to develop a methodology which amalgamates quantitative and qualitative approaches to determine the best placement of mobile logistics hubs (MLH) to be established in different parts of Nepal as a part of real-life ...
Rajali Maharjan, Yashaswi Shrestha, Biplob Rakhal, Saurav Suman, Jurgen Hulst, Shinya Hanaoka   +5 more
doaj   +1 more source

A tabu-search based heuristic for the hub covering problem over incomplete hub networks [PDF]

Computers & Operations Research, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Calik H., Alumur, S.A., Kara, B.Y., Karasan O.E.   +3 more
openaire   +4 more sources

Approximation Algorithm for the Minimum Hub Cover Set Problem

IEEE Access, 2022
A subset ${\mathcal{ S}}\subseteq V$ of vertices of an undirected graph $G=(V,E)$ is a hub cover when for each edge $(u,v) \in E$ , at least one of its endpoints belongs to ${\mathcal{ S}}$ , or there exists a vertex $r \in {\mathcal{ S}}$ that is a neighbor of both $u$ and $v$ .
Joel A. Trejo-Sanchez, Candelaria E. Sansores-Perez, Jesus Garcia-Diaz, Jose Alberto Fernandez-Zepeda   +3 more
openaire   +2 more sources

Identification of Hub Genes Related to Carcinogenesis and Prognosis in Colorectal Cancer Based on Integrated Bioinformatics

Mediators of Inflammation, 2020
The high mortality of colorectal cancer (CRC) patients and the limitations of conventional tumor-node-metastasis (TNM) stage emphasized the necessity of exploring hub genes closely related to carcinogenesis and prognosis in CRC.
Benjiao Gong, Yanlei Kao, Chenglin Zhang, Fudong Sun, Zhaohua Gong, Jian Chen   +5 more
doaj   +1 more source

Weighted gene co-expression network reveals driver genes contributing to phenotypes of anaplastic thyroid carcinoma and immune checkpoint identification for therapeutic targets

Frontiers in Oncology, 2022
BackgroundAnaplastic thyroid carcinoma (ATC) is a rare but extremely malignant tumor, with a rapid growth rate and early metastasis thus leading to poor survival of patients.
Xingxing Dong, Yalong Yang, Jinxuan Hou, Weizhen Chen, Qianqian Yuan, Gaoran Xu, Jiuyang Liu, Chengxin Li, Gaosong Wu   +8 more
doaj   +1 more source

Regenerator Location Problem and survivable extensions: A hub covering location perspective [PDF]

Transportation Research Part B: Methodological, 2015
In a telecommunications network the reach of an optical signal is the maximum distance it can traverse before its quality degrades. Regenerators are devices to extend the optical reach. The regenerator placement problem seeks to place the minimum number of regenerators in an optical network so as to facilitate the communication of a signal between any ...
Yildiz, B., Karasan, O. E.
openaire   +5 more sources

Solving a multi-objective chance-constrained hub covering location problem by discrete invasive weed optimization

Cogent Engineering, 2014
This paper presents a stochastic bi-objective model for a single-allocation hub covering problem (HCP) with the variable capacity and uncertainty parameters.
Seyed Hossein Nikokalam-Mozafar, Behzad Ashjari, Reza Tavakkoli-Moghaddam, Aida Omidvar   +3 more
doaj   +1 more source

Impaired type I interferon signaling activity implicated in the peripheral blood transcriptome of preclinical Alzheimer's disease

EBioMedicine, 2022
Summary: Background: Subjective or objective subtle cognitive decline (SCD) is considered the preclinical manifestation of Alzheimer's disease (AD), which is a potentially crucial window for preventing or delaying the progression of the disease. Methods:
Liting Song, Jingqi Chen, Chun-Yi Zac Lo, Qihao Guo, Jianfeng Feng, Xing-Ming Zhao   +5 more
doaj   +1 more source