Results 81 to 90 of about 437,125 (244)

High‐Throughput Quantitative Chemical Shift‐Encoded MRI of the Liver

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Access to MRI is limited by lengthy exam times and inefficient utilization. Focused protocols can reduce exam times, but workflow variability and inefficient room turnaround contribute to conservative scheduling with long exam slots.
Garrett C. Fullerton, Jiayi Tang, Jitka Starekova, Julius F. Heidenreich, Ali Pirasteh, David T. Harris, Daiki Tamada, Collin J. Buelo, Dan W. Rettmann, Diego Hernando, Scott B. Reeder   +10 more
wiley   +1 more source

Prediction of metal pm emission in rail tracks for condition monitoring application [PDF]

, 2011
Exposure to particulate material (PM) is a major health concern in megacities across the world which use trains as a primary public transport. PM emissions caused by railway traffic have hardly been investigated in the past, due to their obviously minor ...
Gu, Fengshou, Fengshou Gu, A. Anyakwo, A. Ball, Al Thobiani, F., Anyakwo, A., Al Thobiani, Faisal, Tesfa, Belachew, Tesfa, B., Anyakwo, Arthur, Ball, Andrew, Ball, A., F. Al Thobiani, B. Tesfa   +13 more
core   +1 more source

Emotional Ambivalence Contextualized: The Antecedents and Consequences of Daily Affective Profiles During Pregnancy

Journal of Organizational Behavior, EarlyView.
ABSTRACT Research has increasingly highlighted the prevalence of emotionally ambivalent experiences for employees at work, with several self‐regulatory benefits emerging. Yet we do not have a full understanding of which work‐related contexts yield generative or maladaptive consequences of emotional ambivalence.
David F. Arena Jr., Jinfeng Phoenix Chen, Allison S. Gabriel, Kristen P. Jones, Devalina Nag   +4 more
wiley   +1 more source

On the Polygonal Wear Evolution of Heavy-Haul Locomotive Wheels due to Wheel/Rail Flexibility and Its Mitigation Measures

Chinese Journal of Mechanical Engineering
Wheel polygonal wear can immensely worsen wheel/rail interactions and vibration performances of the train and track, and ultimately, lead to the shortening of service life of railway components. At present, wheel/rail medium- or high-frequency frictional
Yunfan Yang, Feifan Chai, Pengfei Liu, Liang Ling, Kaiyun Wang, Wanming Zhai   +5 more
doaj   +1 more source

Analysis of wheel wear characteristics of high-speed train based on field data

Nihon Kikai Gakkai ronbunshu, 2019
A wheel/rail profile wear is a factor that affects the behavior of railway vehicles such as riding comfort, running stability, running safety and maintenance schedule.
Satoshi HARA, Yoshiaki TERUMICHI, Katsuya TANIFUJI   +2 more
doaj   +1 more source

Reproducibility of abrasive wheel wear test.

Journal of the Metal Finishing Society of Japan, 1986
Abrasive wheel wear tests of metal plates, hard anodic oxide coating, plated Cr and chemical nickel plating specimens were carried out, and the effect of abrasion factors (grain size of the abrasive papers, pressure between the specimen and the abrasive paper, speed of reciprocation) on the amount of abrasion, and the reproducibility of the test values
MATSUSHITA, Shizuo, YAJIMA, Shoji, TOGAWA, Yasuhito   +2 more
openaire   +2 more sources

Wheel wear reduction from vehicle lightweighting: a case study for an innovative ultralight vehicle

, 2022
Vehicle light-weighting is a crucial design target for the new generation of rail vehicles, as it reduces energy consumption and improves the capacity and dynamic performance of rail vehicles, making the railway system more attractive to address the ...
Bin Fu, Shiluo Luo, Weihua Ma, Longquan Qin, Stefano Bruni   +4 more
core  

Nutritional Treatment After Discharge of Older Patients at Nutritional Risk: A Study Protocol for a Feasibility Study

Medicine Advances, EarlyView.
Older patients at nutritional risk experience a nutritional gap at hospital discharge, and effective cross‐sector nutritional care models remain lacking despite existing evidence. This study's results may help inform the development of a model for large‐scale implementation.
Martine Kjærsgaard Nielsen, Tina Munk, Anne Marie Beck, Jacob Rosenberg, Jesper Ryg   +4 more
wiley   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

Polymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

The development of rail-head acoustic roughness

, 2009
A model of the development of rail-head acoustic roughness on tangent track has been formulated. The model consists of a two-dimensional time domain wheel-rail interaction force calculation, with the normal force used as the input to a two-dimensional ...
Croft, Briony Elizabeth
core   +1 more source