Results 21 to 30 of about 429,871 (281)

Detection of Artificially Generated Seismic Signals Using Balloon‐Borne Infrasound Sensors

Geophysical Research Letters, 2018
We conducted an experiment in Pahrump, Nevada, in June 2017, where artificial seismic signals were created using a seismic hammer, and the possibility of detecting them from their acoustic signature was examined.
Siddharth Krishnamoorthy, Attila Komjathy, Michael T. Pauken, James A. Cutts, Raphael F. Garcia, David Mimoun, Alexandre Cadu, Anthony Sournac, Jennifer M. Jackson, Voon Hui Lai, Daniel C. Bowman   +10 more
doaj   +1 more source

Development of Balloon-Assisted Gliding Unmanned Aerial Vehicle System for Atmospheric Observation and Spatiotemporal Aerosol Variations in Summer Troposphere over Syowa Station

Antarctic Record, 2021
A novel aerosol observation and sampling system has been developed by combining a rubber balloon and an unmanned aerial vehicle (UAV). The system takes advantage of the feature of an observation method using a rubber balloon, which is handy, inexpensive,
Shin-Ichiro Higashino, Masahiko Hayashi, Shiina Umemoto, Shuji Nagasaki, Motoki Nishimura, Keiichi Ozuka, Koichi Shiraishi, Ayumi Naganuma   +7 more
doaj   +1 more source

A rare cause of pulmonary hypertension: bilateral pulmonary artery involvement and stent restenosis due to Takayasu arteritis

Türk Kardiyoloji Derneği Arşivi, 2014
A 53-year-old female patient was admitted with dyspnea and fatigue. On transthoracic echocardiography, systolic pulmonary artery pressure (PAP) was measured as 90 mmHg, and right heart catheterization revealed pulmonary arterial hypertension.
Gülten Taçoy, Adnan Abacı, Baran Önal, Şeminur Haznedaroğlu, Ramazan Akdemir   +4 more
doaj   +1 more source

VHF Omnidirectional Range (VOR) Experimental Positioning for Stratospheric Vehicles

Aerospace, 2021
The usage of aeronautical radio-frequency navigational aids can support the future stratospheric aviation as back-up positioning systems. Although GNSS has been extensively redundant in the last years of space operations, radio NavAids can still be ...
Lorenzo Frezza, Paolo Marzioli, Fabio Santoni, Fabrizio Piergentili   +3 more
doaj   +1 more source

Dislodgement of coronary stent due to rupture of stent balloon

Türk Kardiyoloji Derneği Arşivi, 2015
Rare stent complications, including dislodgement of stent, unexpanded stent, stent fracture and stent loss etc. can occur during percutaneous coronary interventions (PCI).
Burak Ayça, Ertuğrul Okuyan, İrfan Şahin, Mustafa Hakan Dinçkal   +3 more
doaj   +1 more source

The relationship between HbA1c and cardiovascular events in diabetic patients with coronary angioplasty: A cross-sectional study

Journal of Family Medicine and Primary Care, 2022
Introduction: Re-establishment of coronary artery blood flow in diabetic patients has always been a controversial issue in the treatment of cardiovascular diseases.
Seyed Mohammad Hassan Adel, Masoud Seyedian, Mehdi Nourizadeh   +2 more
doaj   +1 more source

Target Balloon-Assisted Antegrade and Retrograde Approach for Recanalization of Thrombosed Fem-Pop Bypass Graft Using the Outback Catheter

대한영상의학회지, 2016
The subintimal arterial flossing with antegrade-retrograde intervention (SAFARI) technique is reportedly effective in severe peripheral vascular disease that cannot be treated with standard endovascular techniques including subintimal angioplasty.
Jungwon Kwak, Hwanhoon Chung, Seunghwa Lee, Sukkeu Yeom, Sanghoon Cha   +4 more
doaj   +1 more source

Paclitaxel coated balloon versus conventional balloon angioplasty in dysfunctional dialysis arteriovenous fistula: a systematic review and meta-analysis of randomized controlled trials

Renal Failure, 2022
Purpose To compare the efficacy and safety between paclitaxel coated balloon (PCB) angioplasty and conventional balloon (CB) angioplasty in the treatment of dysfunctional arteriovenous fistula (AVF).
Chuxuan Luo, Mingzhu Liang, Yueming Liu, Danna Zheng, Qiang He, Juan Jin   +5 more
doaj   +1 more source

Model Investigations on Electric Discharges over Balloon-Borne Stratospheric VLF Antennas

Energies, 2022
Long linear antennas for very low frequency radio transmissions, supported by aerostats, unanchored, and raised to high altitudes, present themselves as slow-moving, highly conductive disturbances in cloud layers, acquiring an electrical charge and being
Tomasz Aleksander Miś, Józef Modelski, Maciej Ciuba   +2 more
doaj   +1 more source

Meteorological aspects of Salomon August Andrée's attempt to reach the North Pole by balloon in 1897 based on 20CR data

Meteorologische Zeitschrift, 2017
On 11 July 1897, a Swedish expedition under Salomon August Andrée attempted to reach the North Pole from Spitsbergen by balloon. The flight was terminated after only three days, as the weight of the balloon increased above a critical limit, due to an ice
Dieter Etling
doaj   +1 more source