Results 71 to 80 of about 4,134 (202)

Frequency Analysis of Hard Disk Drive Spindle System Supported by Hydrodynamic Bearings

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
Herringbone-grooved hydrodynamic bearings are now being applied to hard disk drive (HDD) spindle motors instead of ball bearings for demand for HDDs with larger storage capacities, faster access times, and reduced sizes.
Shohta TOHMA, Toshiaki ISOGAI, Tomoko HIRAYAMA, Takashi MATSUOKA, Katsuhisa YOKOZUKA, Shigeyoshi MORI   +5 more
doaj   +1 more source

Hierarchical Twin Networks Enable Exceptional Strength and Fracture Toughness in Titanium

Advanced Science, Volume 13, Issue 46, 17 August 2026.
A commercial‐purity titanium with hierarchical ultrafine twin structures delivers an exceptional combination of fracture toughness (KJIc) of 187 MPa·m1/2 and specific yield strength of 140 MPa·cm3·g−1, in which pre‐engineered high‐density twin boundaries stimulate massive and dislocations to blunt crack tip.
Xiao‐Wei Zou, Ting Zhu, En Ma, Wei‐Zhong Han   +3 more
wiley   +1 more source

Increasing water availability strengthens conspecific negative density dependence but weakens heterospecific negative density dependence in Japanese old-growth forests

Forest Ecosystems
The relative magnitudes of negative conspecific and heterospecific density dependence (CDD and HDD) have been widely used to explain tree species diversity.
Rongxu Shan, Han Y.H. Chen, Ganxin Feng, Masumi Hisano, Zilong Ma   +4 more
doaj   +1 more source

The Role of Inflammation and Immunity in Cardiovascular Disease: Molecular Mechanisms and Therapeutic Targets

MedComm, Volume 7, Issue 8, August 2026.
Inflammation in cardiovascular disease is a dynamic and context‐dependent network rather than a secondary response to injury. Mitochondrial danger signaling links metabolic stress to immune activation through TLR priming, NLRP3 inflammasome amplification, cGAS–STING signaling, and immunometabolic gating, providing a basis for more precise therapeutic ...
Jiaxiang Rong, Zhen Wang, Xiaoxiao Lin, Ziwen Lei, Qianqian Huang, Hang Liu, Fei Luan, Junbo Zou, Yajun Shi   +8 more
wiley   +1 more source

Kinematics Analysis and Workspace Solution for the Heterogeneous Double-drive Universal Joint

Jixie chuandong, 2019
A heterogeneous double driving universal joint (HDD-UJ) is proposed, which can realize the pitching motion and the rolling motion. The HDD-UJ uses a universal joint as the prototype of the mechanism, with the motor as the main drive source and the ...
Li Zhongtao, Luo Tianhong
doaj  

Buffer-Aware Data Migration Scheme for Hybrid Storage Systems

IEEE Access, 2018
Since solid-state drives (SSD) have high read speed, they are integrated into a traditional hard disk drive (HDD)-based storage systems for improving the overall performance.
Mingwei Lin, Riqing Chen, Li Lin, Xuan Li, Jingchang Huang   +4 more
doaj   +1 more source

Protein Data Bank Japan: A unified portal for integrating structural and chemical data to explore protein–ligand interactions in PDB and PubChem

Protein Science, Volume 35, Issue 8, August 2026.
Abstract Protein Data Bank Japan (https://pdbj.org/) is the Asian hub of three‐dimensional (3D) macromolecular structure data and a founding member of the global Protein Data Bank (PDB) network. Over two decades, we have curated and distributed experimentally determined structures, complementing international collaborations with Research Collaboratory ...
Gert‐Jan Bekker, Chioko Nagao, Satomi Niwa, Genji Kurisu   +3 more
wiley   +1 more source

O-hexadecyl-dextran entrapped berberine nanoparticles abrogate high glucose stress induced apoptosis in primary rat hepatocytes.

PLoS ONE, 2014
Nanotized phytochemicals are being explored by researchers for promoting their uptake and effectiveness at lower concentrations. In this study, O-hexadecyl-dextran entrapped berberine chloride nanoparticles (BC-HDD NPs) were prepared, and evaluated for ...
Radhika Kapoor, Shruti Singh, Madhulika Tripathi, Priyanka Bhatnagar, Poonam Kakkar, Kailash Chand Gupta   +5 more
doaj   +1 more source

An unattended image‐processing pipeline for on‐the‐fly quality assessment and 3D exploration in cryo‐EM

Acta Crystallographica Section D, Volume 82, Issue 8, Page 915-939, August 2026.
We present a fully automated, unattended cryo‐EM pipeline that serves as an on‐the‐fly diagnostic tool, enabling rapid data‐quality assessment and informed decision‐making to maximize data‐collection efficiency.Single‐particle analysis (SPA) by cryogenic electron microscopy (cryo‐EM) has become a cornerstone of structural biology; yet, the workflow ...
Daniel Marchán Torres, Pablo Conesa, Alberto Garcia, Mikel Iceta, Ludovic Broche, Marcos Gragera, Romain Linares, Hok Sau Kwong, Francisco Javier Chichón, Olof Svensson, Rocío Arranz, Grégory Effantin, Eaazhisai Kandiah, José María Carazo, Carlos O. S. Sorzano   +14 more
wiley   +1 more source

Efficacy and safety of transcranial direct current stimulation in alcohol use disorder: A randomized controlled triple‐blind trial

Addiction, Volume 121, Issue 8, Page 2141-2153, August 2026.
Abstract Background and aims Current treatment options for alcohol use disorder are limited. Transcranial direct current stimulation has been proposed as a therapeutic approach, but evidence remains scarce. This study aimed to compare active vs. sham transcranial direct current stimulation to evaluate its efficacy and safety in reducing alcohol ...
Benoit Trojak, Anne Sauvaget, Wissam El Hage, Thomas Wallenhorst, Benjamin Rolland, Philippe Nubukpo, Ghina Harika‐Germaneau, David Szekely, Julie Giustiniani, Marc Auriacombe, Georges Brousse, Sébastien Guillaume, Maxime Bubrovszky, Benjamin Petit, Clémence Cabelguen, Hussein El Ayoubi, Suzanne Rankin, Agnès Soudry‐Faure, Karine Goueslard, Anastasia Demina   +19 more
wiley   +1 more source