Results 81 to 90 of about 332,099 (201)

On the Bardeen-Petterson Effect in black hole accretion discs

, 2015
We investigate the effect of black hole spin on warped or misaligned accretion discs - in particular i) whether or not the inner disc edge aligns with the black hole spin and ii) whether the disc can maintain a smooth transition between an aligned inner ...
Nealon, Rebecca, Nixon, Chris, Price, Daniel   +2 more
core   +1 more source

NASA/HAA Advanced Rotorcraft Technology and Tilt Rotor Workshop. Volume 7: Tilt Rotor Session [PDF]

The technical characteristics of the XV-15 aircraft were discussed. Program objectives, concept evaluation, tilt rotor experiments and civil market applications are presented.

core   +1 more source

Noise Reduction on the Tilt Sensor for the Humanoid Robot Balancing System Using Complementary Filter

MATEC Web of Conferences, 2018
The aim of the research is to present the design of a system which is capable for noise reduction on the reading of the tilt sensor data used in a balancing system on humanoid robots.
Maulana Rizal, Kurniawan Wijaya, Fahmi Hafizhuddin Zul   +2 more
doaj   +1 more source

Galactic kinematics with modified Newtonian dynamics

, 2009
We look for observational signatures that could discriminate between Newtonian and modified Newtonian (MOND) dynamics in the Milky Way, in view of the advent of large astrometric and spectroscopic surveys.
Angus, Angus, B. Famaey, Bekenstein, Bienaymé, Bienaymé, Bournaud, Brada, Bruneton, Ciotti, Crézé, Cuddeford, D. Aubert, Dehnen, Famaey, Famaey, Famaey, Famaey, Fuchs, Gentile, Grillmair, Grillmair, H. S. Zhao, Haghi, Helmi, Hog, Holmberg, Holmberg, Hori, Ibata, Lynden-Bell, McGaugh, Milgrom, Milgrom, Milgrom, Nipoti, Nordström, O. Bienaymé, Ollongren, Ollé, Oort, Perryman, Read, Read, Robin, Sanders, Siebert, Siebert, Smith, Soubiran, Steinmetz, Tiret, Wu, X. Wu, Zhao, Zhao, Zwitter   +56 more
core   +2 more sources

COMPARISON OF HEART RATE VARIABILITY IN NEGATIVE AND POSITIVE RESPONDERS TO ACTIVE PHASE OF HEAD-UP TILT TEST

Pakistan Armed Forces Medical Journal, 2018
Objective: To compare heart rate variability in negative and positive responders to active phase of head-up tilt test. Study Design:Cross-sectional comparative study.
Sara Naeem, Hira Ashraf, Azmat Hayat, Muhammad Alamgir Khan   +3 more
doaj  

Study on Centroid Height Prediction of Non-Rigid Vehicle Based on Deep Learning Combined Model

Sensors
The height of the center of gravity (ZCG) is a critical parameter for evaluating vehicle safety and performance. Systematic errors arise in ZCG measurement via the tilt-table test method due to unlocked suspension systems and variable sprung mass ...
Guoqiang Pang, Zhiquan Xiao, Zhanwen Cai, Pei Wang   +3 more
doaj   +1 more source

Flight researh at NASA Ames Research Center: A test pilot's perspective [PDF]

In 1976 NASA elected to assign responsibility for each of the various flight regimes to individual research centers. The NASA Ames Research Center at Moffett Field, California was designated lead center for vertical and short takeoff and landing, V/STOL ...
Hall, G. Warren
core   +1 more source

Overview of NASA PTA propfan flight test program [PDF]

The progress is covered of the NASA sponsored Propfan Test Assessment (PTA) flight test program. In PTA, a 9 ft. diameter propfan was installed on the left wing of a Gulfstream GII executive jet and is undergoing extensive flight testing to evaluate ...
Graber, Edwin J.
core   +1 more source

Cardioneuroablación: ¿cuánto debemos esperar para evaluar una respuesta favorable?

Revista Interamericana de Cardiología
La cardioneuroablación fue propuesta hace más de dos décadas con el objetivo de tratar las bradiarritmias funcionales sin recurrir al implante de un marcapasos.
María E. Amrein, Christian M. Delgado, Agustín E. Monzón, Marco Borja, Gonzalo Fernández-Villar, Gustavo F. Maid   +5 more
doaj   +1 more source

Tilt Test as a Primary Non-Invasive Method for Testing Cardiac Autonomic Nervous System Function in Patients with Vasovagal Syncope

Український журнал серцево-судинної хірургії
Introduction Syncope is a sudden, brief loss of consciousness with rapid spontaneous recovery, caused by transient global cerebral hypoperfusion. Among various causes of syncope, the most common are reflex mechanisms, particularly vasovagal syncope ...
Dmytro A. Tymoshenko, Mykola V. Derkach, Alina V. Topchii   +2 more
doaj   +1 more source