Results 81 to 90 of about 8,668 (188)

A Magnetic‐Driven Self‐Rotation‐Stabilized Miniature Swimming Robot

open access: yesAdvanced Science, EarlyView.
Inspired by the stable rotational descent of seeds in nature, this study designs a magnetic‐driven self‐rotation‐stabilized miniature swimming robot (MSMSR). Based on a resonance‐driven strategy, the robot exhibits high swimming performance, offering enhanced directional swimming and improved resistance to water flow disturbances compared to existing ...
Fujun Wang   +4 more
wiley   +1 more source

The Use of Backstepping Method to Ship Course Controller [PDF]

open access: yesTransNav, 2007
The article systematises and perform approaches the new concept of the ship autopilot in which control rules are derived for nonlinear controllers designed with the aid of the backstepping method and used for controlling the ship's motion on its course ...
Anna Witkowska, Roman Smierzchalski
doaj  

Estimation of Manoeuvring Targets using Hybrid Filters

open access: yes, 2003
Modern guided weapons are frequently required to operate in a complex environment that often involve highly complicated behaviours. In these types of engagements, assumptions of linearity no longer hold and model uncertainties in the form of unmeasured ...
Hunter, Peter G., Ford, Jason J.
core  

MOF‐Derived Cu‐TiO2/Alginate Micromotors for Buoyancy‐Regulated 3D Motion

open access: yesAdvanced Science, EarlyView.
In this work, cyanobacteria‐inspired sodium alginate (SA)/Cu‐TiO2/Fe3O4 hydrogel micromotors generate and encapsulate O2 microvesicles upon light irradiation, enabling buoyancy‐mediated Z‐axis upward migration and surface enrichment at the light‐exposed water‐air surface.
Wei Zou   +7 more
wiley   +1 more source

Depth Optimization of Designed New Ferry Berth [PDF]

open access: yesTransNav, 2007
Increasing sea ferries traffic on Baltic Sea has in the recent years motivated the design of larger ferries. Currently the lengths of the most ferries, which call at port of ?winouj?cie, do not exceed the limit of 170 meters.
Stanislaw Gucma, Stefan Jankowski
doaj  

Radical Resection of the Third Portion of the Duodenum for Secondary Aortoduodenal Fistula

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
Secondary aortoduodenal fistula most commonly involves the third portion of the duodenum and requires definitive management of both vascular and gastrointestinal components. We demonstrate a step‐by‐step technique for radical duodenal resection and reconstruction performed in structured collaboration with cardiovascular surgeons.
Koji Kubota   +4 more
wiley   +1 more source

The Environmental Effects of Projected Container Terminal to the Safely Manoeuvring [PDF]

open access: yesTransNav, 2008
This paper investigates vessel traffic risks that are exposed by a new port installation. A vessel traffic risk analysis was performed by the Ship Handling Simulator team for container terminal installation in Izmit Bay.
Cemil Yurtóren, Okan Duru, Tanzer Satir
doaj  

Preoperative FIB‐4 Index as a Potential Factor Associated With Severe Postoperative Complications and Endogenous Organ Failure After Hepatectomy for Hepatocellular Carcinoma

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
This study demonstrates that a preoperative FIB‐4 index ≥ 5.0 independently predicts severe complications and endogenous organ failure (EOF) following hepatectomy for hepatocellular carcinoma. By capturing structural liver fragility and systemic vulnerability, the FIB‐4 index enhances surgical risk stratification beyond traditional functional markers ...
Masanori Nakamura   +9 more
wiley   +1 more source

The Display Mode for Choosing the Manoeuvre for Collision Avoidance [PDF]

open access: yesTransNav, 2009
The display mode is intended for facilitation of building strategies for collision avoidance by so-called B-manoeuvres. It can be used in ECDIS, ARPA and the simulator systems.
Leonid Vagushchenko   +1 more
doaj  

Reduced‐Port Versus Multi‐Port Laparoscopic Colectomy for Colorectal Cancer: A Systematic Review, Meta‐Analysis, and Meta‐Regression

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
Reduced‐port laparoscopic colectomy (RPLC) for colorectal cancer offers modest intraoperative benefits, including shorter operative time and lower blood loss, while maintaining comparable postoperative recovery, lymph node yield, and complication rates to multi‐port laparoscopic colectomy (MPLC).
Ayesha Shaukat   +9 more
wiley   +1 more source

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