Results 41 to 50 of about 69,349 (295)

ELEKTROGRAM INTRAKARDIAK PADA ATRIAL FLUTTER [PDF]

, 2022
Aritmia adalah irama detak jantung yang tidak normal. Atrial flutter adalah salah satu aritmia yang paling umum dan ditandai dengan irama jantung abnormal yang cepat, Atrial Flutter dapat menyebabkan palpitasi, kelelahan, sinkop, dan emboli.
Laksono, Sidhi, Rahmadita, Raisya, Shafa, Ghina Nur   +2 more
core   +1 more source

Flutter Mechanism of a Thin Plate Considering Attack Angles

Applied Sciences
It is well known that the flutter performance of a section is sensitive to the changing wind angles of attack. Exploring the thin plate’s flutter mechanism under different angles of attack is excellent, which helps understand inner flutter ...
Chengjun Yan, Qi Wang, Bo Wu, Lin Huang
doaj   +1 more source

Flutter Condition Estimation for 3-D Cantilever Plate Using Fully Coupled Fluid – Structure Interaction [PDF]

Engineering and Technology Journal, 2014
The aeroelastic responses and the flutter condition of 3-D flexible cantilever plate were estimated by developed fully coupled fluid-structure interaction(FSI) approach.
Hayder Sabah Abd Al-Amir, Mauwafak Ali Tawfik, Mohammed Idris Abu-Tabikh   +2 more
doaj   +1 more source

Multi‐Biomimetic Structural Colors Inspired by Pearls and Bird Feathers

Advanced Materials, EarlyView.
A dual‐biomimetic strategy mimicking pearls and bird feathers is proposed to construct full‐gamut structural colors. By integrating a non‐strictly periodic inorganic multilayer architecture with tunable light absorbers, this facile approach circumvents the complex fabrication of traditional 1D photonic crystals, offering immense potential for cosmetics,
Zhiwei Wang, Qiuyu Cheng, Qiuyu Jin, Fu Tang, Wenbin Cao, Ayahisa Okawa, Takuya Hasegawa, Takehiro Goto, Natsumi Yamaguchi, Takumi Tanaka, Te‐Wei Chiu, Tohru Sekino, Shu Yin   +12 more
wiley   +1 more source

Ferrocene‐Based Self‐Assembled Monolayers Enable Ultra‐High Specific Detectivity in Perovskite Photodetectors

Advanced Materials, EarlyView.
We report perovskite photodetectors with record specific detectivities exceeding 1013 Jones with a novel molecular design strategy to functionalize self‐assembled monolayers (SAMs) with ferrocene (Fc) derivatives. Fc‐SAM‐based devices also exhibit strong operational stability and enable data transmission rates exceeding 1 Mbps in a LiFi system ...
Edoardo Angela, William D. J. Tremlett, Francesco Vanin, William J. O. Rodriguez Kazeem, Zhuoran Qiao, Davide Nodari, Francesco Furlan, Zonglong Zhu, Martyn A. McLachlan, Nicholas J. Long, Nicola Gasparini   +10 more
wiley   +1 more source

Study on the asymmetric extension state's flutter characteristics of a telescopic wing UAV

Hangkong gongcheng jinzhan
Telescopic wing UAVs not only exhibit excellent flight performance across a wide speed range but can also utilize asymmetric wing extensions for flight control. This study focuses on a UAV with asymmetrically extendable wings.
YANG Jian, JIANG Panpan, CHEN Liyong, LIU Xiaochuan, WANG Wei   +4 more
doaj   +1 more source

Near‐Infrared Imaging of H2O2 in Plants With Nanosensors Under Environmentally Changing Conditions

Advanced Materials, EarlyView.
This paper reports a ratiometric nanosensor enabling robust, multivariate detection of stress signals (H2O2) in plants, with high resistance to light fluctuations and mechanical disturbances. Single‐walled carbon nanotubes serve as the sensor, Egyptian Blue nanosheets serve as a stable reference, and plant autofluorescence serves as a label‐free ...
Jiaqi Li, Bjoern F. Hill, Chen Ma, Juliana Gretz, Tanuja Kistwal, Janus A. C. Wartmann, Justus T. Metternich, Juan Pablo Giraldo, Sebastian Kruss   +8 more
wiley   +1 more source

Isthmus Dependent Atrial Flutter Cycle Length Correlates with Right Atrial Cross-Sectional Area

Indian Pacing and Electrophysiology Journal, 2009
Background: Right atrial flutter cycle length can prolong in the presence of antiarrhythmic drug therapy. We hypothesized that the cycle length of right atrial isthmus dependent flutter would correlate with right atrial cross-sectional area measurements.
Kousik Krishnan, Akshay Gupta, Sean M. Halleran, Dave Chawla, Elizabeth F. Avery, Julia L. Bienias, Richard G. Trohman   +6 more
doaj  

Study on coupled mode flutter parameters of large wind turbine blades

Scientific Reports
As the size of wind turbine blades increases, the flexibility of the blades increases. In actual operation, airflow flow can cause aerodynamic elastic instability of the blade structure.
Yong Zhuang, Guangming Yuan
doaj   +1 more source

Frequency- and time-domain methods related to flutter instability problem [PDF]

Građevinski Materijali i Konstrukcije, 2014
Bridge flutter phenomenon presents an important criterion of instability, which should be considered in the bridge design phase. This paper presents different bridge flutter methods which can be used to solve the flutter problem.
Šarkić Anina, Jočković Miloš, Brčić Stanko   +2 more
doaj   +1 more source