Results 141 to 150 of about 433,280 (361)
Two lighter than air systems in opposing flight regimes: An unmanned short haul, heavy load transport balloon and a manned, light payload airship [PDF]
, 1975 Lighter Than Air vehicles are generally defined or categorized by the shape of the balloon, payload capacity and operational flight regime. Two balloon systems that are classed as being in opposite categories are described.
Pohl, R. A.
core +1 more source
Advanced Science, EarlyView.A nitrogen‐doped carbon nitride (NCN) has been synthesized and applied for the sustainable generation of reactive nitrogen and oxygen radicals. The NCN catalyst facilitates radical carboamination, oxyamination, and deoxygenation reactions, as well as the oxidation of boronic acids and alcohols, all under mild photocatalytic conditions.
Lan Qin +4 more
wiley +1 more source
Concepts for autonomous flight control for a balloon on Mars [PDF]
Balloons operating as airborne rovers have been suggested as ideal candidates for early exploration of the Martian surface. An international study team composed of scientists from the U.S.S.R., France, and the U.S.A.
Friend, Robyn C. +2 more
core +1 more source
An Unusual Melanocytic Nevus of Conjunctiva : Balloon Cell Nevus [PDF]
, 2011 Melanocytic nevi are one of the most common benign tumors of the conjunctiva. The balloon cell nevus is a rare and unusual variant of nevus of melanocytic origin, in which more than 50% of the tumor is composed of large polygonal cells with small nucleus
Geethalakshmi, U +3 more
core
Advanced Science, EarlyView.It is presented bioelectronics that exhibit exceptional adaptability to dynamic skin surfaces through an integrated structural and material design. These omnidirectionally stretchable, skin‐compliant, mechanically robust, and permeably biocompatible kirigami‐based devices minimize skin irritation and conductivity loss and offer new insights for the ...
Gyun Ro Kang +7 more
wiley +1 more source
Outcomes of Percutaneous Coronary Intervention on Saphenous Vein Graft and Native Coronary Vessels
Journal of Tehran University Heart Center, 2011 Background: The optimal target for revascularization in patients with history of coronary artery bypass graft surgery (CABG) is unclear. This study was designed to compare the outcome of percutaneous coronary intervention (PCI) on saphenous vein grafts ...
Mohammad Alidoosti +10 more
doaj
Hand-made balloon for endosonography
Journal of Health Science and Medical Research (JHSMR), 2002 Objective: To compare the quality of endosonographic study using hand-made balloon and original imported balloon. Materials and Methods: The hand-made balloon was made from a latex surgical glove no. 6 .
S Punperk, T Maipang, B Owartranporn
doaj
Clinical and morphological evaluation of coronary bifurcation lesions
Türk Kardiyoloji Derneği Arşivi, 2013 Objectives: We aimed to investigate the anatomical and morphological characterization of coronary bifurcation lesions. Study design: The study population consisted of 542 stable patients who underwent coronary angiography.
Mustafa Kurt +6 more
doaj +1 more source