Results 41 to 50 of about 29,639 (201)

A Robust Model Predictive Control Approach for Autonomous Underwater Vehicles Operating in a Constrained workspace

, 2018
This paper presents a novel Nonlinear Model Predictive Control (NMPC) scheme for underwater robotic vehicles operating in a constrained workspace including static obstacles.
Heshmati-alamdari, Shahab, Karras, George C., Kyriakopoulos, Kostas J., Marantos, Panos   +3 more
core   +2 more sources

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

A Two-Mode Underwater Smart Sensor Object for Precision Aquaculture Based on AIoT Technology

Sensors, 2022
Monitoring the status of culture fish is an essential task for precision aquaculture using a smart underwater imaging device as a non-intrusive way of sensing to monitor freely swimming fish even in turbid or low-ambient-light waters.
Chin-Chun Chang, Naomi A. Ubina, Shyi-Chyi Cheng, Hsun-Yu Lan, Kuan-Chu Chen, Chin-Chao Huang   +5 more
doaj   +1 more source

Successful Endoscopic Submucosal Dissection for Giant Inflammatory Fibroid Polyp in Terminal Ileum. [PDF]

DEN Open
ABSTRACT A 55‐year‐old woman presented with postprandial abdominal pain and diarrhea. Contrast‐enhanced abdominal computed tomography revealed a large tumor in the ileocecal region. Colonoscopy demonstrated a pedunculated polyp originating from the terminal ileum, intermittently prolapsing into the cecum with a stalk‐like base.
Watanabe S, Nakajima Y, Aizawa M, Wada J, Otomo K, Shibukawa G, Takagi T, Utano K, Suzuki O, Togashi K.   +9 more
europepmc   +2 more sources

Multi‐Force‐Driven Self‐Recoverable SWIR Mechanoluminescence for Underwater Communication

Advanced Science, EarlyView.
This study represents the first demonstration of self‐recoverable mechanoluminescent (ML) within a single material across diverse mechanical modes, enabled by the synergistic coupling of piezoelectric and triboelectric effects. Through a combinatorial doping approach, the MgNb2O6 crystal exhibits breakthrough short‐wavelength infrared ML performance ...
Jie Sun, Yingqiang Li, Lei Wang, Li Li, Bo Zhao, Yu Wang, Yu Zhang, Xian Zheng, Jiale Zhang, Xinhong Wen, Guodong Zhang, Zhijun Wang, Panlai Li, Hao Suo   +13 more
wiley   +1 more source

Antarctic marine mammals and ocean acoustics [PDF]

, 2006
Marine mammals rely on sound and hearing as their primary means of communication and sensing their world. Concerns that anthropogenic sound in the ocean could infer their sensing, cause stress or even damage their hearing physically rose a controversial ...
Boebel, Olaf, Bornemann, Horst, Burkhardt, Elke, Kindermann, Lars, Klinck, Holger, Plötz, Joachim   +5 more
core  

Network Survivability Performance Evaluation in Underwater Surveillance System Using Markov Model [PDF]

, 2014
Underwater Wireless Sensor Network (UWSN) is a useful technology that can be used in Underwater Surveillance System (USS). USSs are mostly used in military purposes for detecting underwater military activities.
Keshtgari, Manijeh, Mohammadi, Reza, Nabavi, Seyyed Yahya   +2 more
core   +4 more sources

Safety and Feasibility of Laparoscopic and Endoscopic Cooperative Surgery With Endoscopic Submucosal Dissection for Large Superficial Non‐Ampullary Duodenal Epithelial Tumors

Annals of Gastroenterological Surgery, EarlyView.
ABSTRACT Background and Aims Endoscopic submucosal dissection (ESD) for large superficial non‐ampullary duodenal epithelial tumors (SNADETs) poses substantial technical challenges, primarily because of a heightened risk of adverse events (AEs). Laparoscopic and endoscopic cooperative surgery (D‐LECS) was introduced to address these risks, with recent ...
Masaru Hayami, Shoichi Yoshimizu, Naoki Miyazaki, Shintaro Yamamoto, Hiroyuki Yamamoto, Motonari Ri, Rie Makuuchi, Tomoyuki Irino, Manabu Takamatsu, Souya Nunobe   +9 more
wiley   +1 more source

Generalized Method Of Designing Unmanned Remotely Operated Complexes Based On The System Approach [PDF]

, 2019
Self-propelled underwater systems belong to the effective means of marine robotics. The advantages of their use include the ability to perform underwater work in real time with high quality and without risk to the life of a human operator.
Blintsov, V. (Volodymyr), Klochkov, O. (Olexandr)   +1 more
core   +2 more sources

Integrated Evaluation of Contaminant Profiles, Detection Techniques, and Management Strategies for Tannery Sludge

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This review article critically examines the environmental and health hazards of tannery sludge (TS), a complex by‐product of the leather tanning industry. TS is characterized by a diverse array of contaminants, including heavy metals like chromium, organic pollutants such as polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds ...
Yashar Aryanfar, Ali Keçebaş, Soheil Hassanzadeh, Arash Nourbakhsh Sadabad, Farhan Lafta Rashid, Shabbir Ahmad, Ahmed Hendy, Hafiz M. Irfan, Shaban Mousavi Ghasemlou, Julio Blanco Fernandez, Jorge Luis Garcia Alcaraz   +10 more
wiley   +1 more source