Results 81 to 90 of about 590 (236)

The Effect of Additives on The Performance of Hydrostatic Thrust Bearings

Al-Khawarizmi Engineering Journal, 2019
The paper is concerned with, the behavior of the hydrostatic thrust bearings lubricated with liquid-solid lubricants using Einstein viscosity formula, and taking into account the centrifugal force resulting from high speed.  Also studied is the effect of
Albert E. Yousif
doaj  

River Ice Processes Modelling: A Comprehensive Review

River Research and Applications, EarlyView.
ABSTRACT River ice strongly influences hydrology, hydrodynamics, and ecosystems in cold regions, with an impact on flooding, hydropower generation, navigation, and aquatic habitats. Modeling river ice processes is therefore essential for both scientific understanding and operational management.
Harusha Abeynayake, Heli Yu, Epari Ritesh Patro, Ali Torabi Haghighi   +3 more
wiley   +1 more source

The Effect of Additives on The Performance of HydrostaticThrust Bearings

Al-Khawarizmi Engineering Journal, 2008
The paper is concerned with, the behavior of the hydrostatic thrust bearings lubricated with liquid-solid lubricants using Einstein viscosity formula, and taking into account the centrifugal force resulting from high speed.
Muhammed Abdul Sattar, Albert E. Yousif
doaj  

A Method for Predicting Motion Error of Internal Feedback Hydrostatic Turntable Under Eccentric Load

Lubricants
This paper proposes a method to analyze motion errors in a five-degree-of-freedom hydrostatic turntable with internal feedback under eccentric load. The motion error models of thrust and journal bearings are derived separately, revealing the mechanism of
Honglie Ma, Qingkai Shen, Xiaolei Deng, Qiang Cheng, Mingyue Zhang   +4 more
doaj   +1 more source

How Tough a Passage? Nonnative Fish Entrainment Survivability at a Major Dam in the Western USA

River Research and Applications, EarlyView.
ABSTRACT The Colorado River downstream of Glen Canyon Dam (GCD) in the southwest USA demonstrates anthropogenic modification including altered flow and temperature regimes and established nonnative species in upstream reservoirs. Water overallocation and megadrought are contributing to new potential invasion pathways for nonnative fishes through dam ...
Barrett Friesen, Casey A. Pennock, Phaedra Budy   +2 more
wiley   +1 more source

Improving Human Diving Endurance With a Field‐Deployable Exoskeleton

SmartBot, EarlyView.
High energetic demands to overcome drag, combined with a finite supply of self‐contained breathing gas, fundamentally limit human endurance in underwater locomotion. Here, we present DiveMate, a portable exoskeleton that provides adaptive bidirectional assistance synchronized with fin‐kicking during diving, reducing lower‐limb muscle activation and ...
Zhihao Zhou, Zhenmeng Ju, Chenxi Zhang, Ming Xu, Enhao Zheng, Lecheng Ruan, Qining Wang   +6 more
wiley   +1 more source

Engineering an Enzymatically Active Granular Matrix for On‐Chip Modeling of Bone‐Like Mineralization

Small, EarlyView.
Alkaline phosphatase (ALP)‐functionalized poly(ethylene glycol) (PEG) microgels assemble into a perfusable granular matrix for cell‐free modeling of bone‐like mineralization. Microgel‐associated enzymatic activity promotes calcium phosphate deposition, producing a calcium‐deficient, poorly crystalline apatite‐like phase, while keeping interparticle ...
Farhad Sanaei, Dina Zandieh, Daniel Hofman, Lucas Joziasse, Jeroen J.J.P. van den Beucken, Sander C.G. Leeuwenburgh, Mani Diba   +6 more
wiley   +1 more source

Boron‐embedded multifunctional nanoplatform toward potential combined boron neutron capture therapy and immunomodulation in glioma

Smart Molecules, EarlyView.
A brain‐targeting multifunctional nanoplatform (DM&Ce6@COF‐Ang) was engineered by employing boron‐enriched APTES‐COF‐1 as both the therapeutic boron agent and the nanocarrier co‐delivery of DMXAA and Ce6. This nanoplatform achieved synergistic tumor‐specific boron delivery, real‐time pharmacokinetic monitoring, and immunomodulation.
Yiming Liu, Xuejian Wang, Bangjian Li, Kun Shao, Jianlong Su, Yang Wang, Lin Cheng, Zhihao Wu, JinRong Li, Guanyi Zhang, Xu Wang, Yuxuan Zhang, Yuanhao Liu, Guangzhe Li   +13 more
wiley   +1 more source

Microfluidic Molecular Diagnostic Chips: Functional Modules, Integration Strategies, and Emerging Applications

Small Methods, EarlyView.
This comprehensive review delivers an engineering‐centric analysis of microfluidic molecular diagnostic chips, breaking them down into foundational modules from fluid manipulation to bio‐sensing. Beyond chip design, it evaluates sample‐to‐answer integration strategies and commercial readiness levels.
Donghoon Koo, Egor Kokin, Sangyul Baik, Chanyong Park, Minji Kim, Jeongmin Kim, Ryungeun Song, Hosub Lim   +7 more
wiley   +1 more source

Research on Magnetorheological Fluid Hydrostatic Bearing Device with Variable Stiffness

Lubricants
To address the limitations of conventional magnetorheological (MR) fluid hydrostatic bearings, a variable-stiffness bearing is proposed. These limitations include insufficient load capacity, low torque margin, and poor adaptability under complex ...
Haopeng Li, Gege Liu, Shumeng Wang, Shaoyu Zhu, Yanzhe Bi, Shuyou Wang   +5 more
doaj   +1 more source