Results 111 to 120 of about 16,397 (244)

Centerline Rumble Stripe Construction

, 2012
This session will present emerging findings from a research study evaluating the use of centerline rumble stripes as an alternative to raised pavement markers. The construction requirements will be covered as well as the results of a pre- and post- winter retroreflectivity measurement observations.
openaire   +1 more source

Critical Review of Brazil Disk Techniques for Tensile Strength Characterization With an Emphasis on High Explosive Materials

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Mechanical properties are a critical performance metric for many high explosive (HE) materials and tensile strength properties are particularly important. Direct tensile measurements using dogbone shaped samples are the gold standard but they have the disadvantage that they are fairly large and require samples machined from billets.
Paul B. Mirkarimi
wiley   +1 more source

Dysregulation of CD39/Ectonucleoside Triphosphate Diphosphohydrolase 1 Causes Urinary Bladder Dysfunction with Abnormal Smooth Muscle Contractility [PDF]

FASEB J
Abnormal extracellular ATP levels cause lower urinary tract symptoms (LUTS). Here, we demonstrate that overexpression of ENTPD1 (CD39TG)—an ATP/ADP converting enzyme—reduces voiding frequency while increasing void volume. Conversely, ENTPD1 deficiency results in frequent, small‐volume voiding.
Luo Z, Chen H, Wu A, Mao W, Barge S, Alper S, Robson S, Yu W.   +7 more
europepmc   +2 more sources

Windowed Mean Drift Exponentially Weighted Moving Average Control Chart for Monitoring Complex Autocorrelated Processes

Quality and Reliability Engineering International, EarlyView.
ABSTRACT In modern manufacturing environments, traditional statistical process control (SPC) methods often struggle with complex, dynamic data patterns, particularly when observations are autocorrelated. Control charts are useful tools used in SPC to detect any significant drift in a process.
Jeanette Maria Louw, Jean‐Claude Malela‐Majika, Kayode Samuel Adekeye, Aamir Saghir   +3 more
wiley   +1 more source

Vector Field‐Based Collision‐Free Navigation in Tunnel‐Like Environments

Journal of Field Robotics, EarlyView.
ABSTRACT Tunnel‐like environments, renowned for their vast scale, confined spaces, and limited visibility, present significant challenges for autonomous robot navigation. This study addresses the critical issue of guiding robots through such environments while ensuring collision‐free navigation and maintaining a specified safety margin from both tunnel
Bao Jianjun, Licheng Feng, Yueqi Wang, Kai Zhao, Binghao Li, Liao Wu   +5 more
wiley   +1 more source

A Novel Crawling Robot Based on the Hexagonal Mesh Structure and Enhanced PID Control Strategy

Journal of Field Robotics, EarlyView.
ABSTRACT The locomotion of crawling robots is similar to that of caterpillars, relying on foot adhesion and body contraction to ensure flexible movement without compromising stability. However, most existing pneumatic soft crawling robots are incapable of simultaneously achieving forward, backward, turning, and climbing capabilities.
Meng Hongjun, Ren Yuke, Wei Jingtao, Zhang Shupeng, Zhang Wei   +4 more
wiley   +1 more source

Virtual Elastic Tether: A New Approach for Multi‐Agent Navigation in Confined Aquatic Environments

Journal of Field Robotics, EarlyView.
ABSTRACT Underwater navigation is a challenging area in the field of mobile robotics due to inherent constraints in self‐localization and communication in underwater environments. Some of these challenges can be mitigated by using collaborative multi‐agent teams.
Kanzhong Yao, Xueliang Cheng, Keir Groves, Barry Lennox, Ognjen Marjanovic, Simon Watson   +5 more
wiley   +1 more source

A Tool for Prioritizing Gravel Augmentation Reaches for Sediment Starved Rivers

River Research and Applications, EarlyView.
ABSTRACT Gravel augmentation is a widely used restoration technique used to improve habitat below dams, including salmonids spawning habitat. However, gravel augmentation can be cost‐prohibitive, and it is often unclear which stream segments have the highest potential to benefit spawning salmonids.
Patricia J. Wohner, Peter A. Samarin, James T. Peterson   +2 more
wiley   +1 more source

Geospatial technology based evaluation of recent morphodynamic changes and flow patterns in the upper Jhelum River

River, EarlyView.
Abstract This study was conducted to address the concerns over the changes in river morphology and their implications for sustainable river management. It investigates the morphological dynamics of the Upper Jhelum River between 2018 and 2023, using high‐resolution Sentinel‐2 imagery and advanced geospatial techniques to capture subtle yet significant ...
Sumaira Javaid, Pervez Ahmed, Akhtar Alam, Mohd Wasit Manhas, Srija Roy   +4 more
wiley   +1 more source

In Situ UV Torsional Force Spectroscopy for Real‐Time Mapping of Cross‐linking Kinetics and Mechanical Properties in Polymeric Films

Small Methods, EarlyView.
This study introduces an in situ UV torsional force spectroscopy method to track how polymers harden under UV light. The technique maps stiffness and energy loss beneath the surface in real time. It reveals how cross‐linking develops and identifies regions with different mechanical behavior, helping optimize UV curing processes in polymer materials ...
Marvin Hoffer, Felix Petersein, Martin Dehnert, Tobias Andreas Lintner, Hikmet Sezen, Jan Philipp Hofmann, Christian Dietz   +6 more
wiley   +1 more source