Results 51 to 60 of about 38,808 (290)

CFD investigations of scour beneath a submarine pipeline with the effect of upward seepage

, 2020
A numerical model of scour beneath subsea structures considering the effect of upward seepage in the seabed is proposed. A small seepage can cause significant changes to the hydrodynamic force on the bed surface and stability of bed particles, which can ...
Yuzhu Li, M. Ong, D. Fuhrman
semanticscholar   +1 more source

Laparoscopic Colorectal Surgery in the Era of Robotics: Evolution, Eclipse, or Equilibrium?

Annals of Gastroenterological Surgery, EarlyView.
ABSTRACT Minimally invasive colorectal surgery has undergone a remarkable transformation over the past three decades. Laparoscopy, once viewed with skepticism, is now firmly established as a standard approach, supported by robust randomized trials demonstrating oncologic safety and improved recovery compared to open surgery.
Amanjeet Singh, Archit Gupta, Azhar Perwaiz, Adarsh Chaudhary   +3 more
wiley   +1 more source

Prediction of Scour Hole Dimension Downstream of Siphon Spillway Under Submerged Condition [PDF]

مهندسی منابع آب, 2020
In this research work, besides analyzing the scour hole at the downstream of the siphon spillway physical model, some equations have been presented to predict scour hole developing.
mehdi fuladipanah, reza jafarinia
doaj  

The Applicability of Time-Integrated Unit Stream Power for Estimating Bridge Pier Scour Using Noncontact Methods in a Gravel-Bed River

Remote Sensing, 2022
In near-field remote sensing, noncontact methods (radars) that measure stage and surface water velocity have the potential to supplement traditional bridge scour monitoring tools because they are safer to access and are less likely to be damaged compared
Laura A. Hempel, Helen F. Malenda, John W. Fulton, Mark F. Henneberg, Jay R. Cederberg, Tommaso Moramarco   +5 more
doaj   +1 more source

Surgical Outcomes of Sequential Robot‐Assisted Hepatobiliary–Pancreatic Surgery in a Single Operating Room: A Single‐Center Retrospective Analysis of a High‐Volume Center in Japan (TAKUMI‐6)

Annals of Gastroenterological Surgery, EarlyView.
This study investigated the surgical outcomes of sequential robot‐assisted hepatobiliary–pancreatic (HBP) in a single operating room. The outcomes and operating room timelines were comparable between the first and second cases. The median turnover time was 49 min, and the day‐shift completion success rate was 34.4%.
Tomokazu Fuji, Kosei Takagi, Kazuya Yasui, Takeyoshi Nishiyama, Yasuo Nagai, Naohiro Okada, Shohei Yokoyama, Toshiyoshi Fujiwara   +7 more
wiley   +1 more source

Erosion of granular sediments by submerged impinging jets: Particle size effects and cohesion onset

AIChE Journal, EarlyView.
Abstract This study investigates the erosion behavior and modeling of glass particle beds under impinging jet conditions, with a focus on particle size effects and the onset of cohesion. Ultrasonic profiling is implemented to scan and measure static crater profiles.
Ahmad Mohamadiyeh, Jeffrey Peakall, Michael Fairweather, Martyn Barnes, Timothy N. Hunter   +4 more
wiley   +1 more source

Hydrodynamic Modeling and Comprehensive Assessment of Pier Scour Depth and Rate Induced by Wood Debris Accumulation

Hydrology
This study mainly investigates the impact of debris accumulation on scour depth and scour hole characteristics around bridge piers. Through controlled experiments with uniform sand bed material, the influence of various debris shapes (high wedge, low ...
Muhanad Al-Jubouri, Richard P. Ray
doaj   +1 more source

Physical Modeling of Local Scouring around Bridge Piers in Erodable Bed

Journal of King Saud University: Engineering Sciences, 2007
The construction of bridges in alluvial channels will cause a contraction in the waterway at the bridge site. The contraction in the waterway will cause a significant scour at that site.
Thamer Ahmed Mohammed, Megat Johari Megat Mohd Noor, Abdul Halim Ghazali, Badronnisa Yusuf, Katayon Saed   +4 more
doaj   +1 more source

Wireless blood pressure sensor implantation in sheep: A detailed technique

Animal Models and Experimental Medicine, EarlyView.
Twelve adult sheep underwent wireless blood pressure sensor implantation. The procedure lasted an average of 36 min, with mean systolic and diastolic blood pressures of 93 ± 6 and 65 ± 5 mmHg, respectively. This rapid, minimally invasive protocol is a powerful platform for cardiovascular device development.
David Santer, Paul Ecker, Judith Radloff, Katharina Heissl, Smruti Mirchandani, Sabine Leitner, Bruno Mora, Martin Czerny, Roman Gottardi, Michael Moore, Bruno K. Podesser   +10 more
wiley   +1 more source

Hydraulic erosion patterns downstream of corrugated aprons: investigating free and submerged jet effects

Frontiers in Environmental Engineering
The experimental evaluation of the performance of a corrugated apron under free flow subcritical and submerged conditions was conducted, with a focus on scour patterns over the apron. Comparative analysis with a smooth rigid apron revealed an increase in
Mohd Aamir Mumtaz, Mohamed H. Elgamal, Mohamed I. Farouk, Mohamed I. Farouk, Md Irfanul Haque Siddiqui   +4 more
doaj   +1 more source