Indoor and Outdoor Fusion Positioning and Security Technology Based on Beidou Satellite

2021 ◽  
pp. 153-164
Author(s):  
Bing-sen Xia ◽  
Zhao-zheng Zhou ◽  
Zhang-huang Zhang ◽  
Yang Li ◽  
Jia Yu
Keyword(s):  
Security Technology ◽  
Indoor And Outdoor

31. Indoor and Outdoor Concentration Levels of Airborne Fungi in Cincinnati Area Homes: Pilot Study

2005 ◽  
Author(s):  
T. Lee ◽  
D. Martuzevicius ◽  
C. Crawford ◽  
A. Adhikari ◽  
T. Reponen ◽  
...  
Keyword(s):  
Pilot Study ◽  
Airborne Fungi ◽  
Outdoor Concentration ◽  
Concentration Levels ◽  
Indoor And Outdoor

Assessment of exposure by size-resolved indoor and outdoor particle sources in residential buildings

2019 ◽  
Vol 18 (4) ◽  
pp. 346-353 ◽  
Author(s):  
Kyungmo Kang ◽  
◽  
Taeyeon Kim ◽  
Yun Gyu Lee
Keyword(s):  
Residential Buildings ◽  
Indoor And Outdoor

Indoor and outdoor air quality monitoring in hemp house — Case study

2011 ◽  
Vol 6 (3) ◽  
pp. 63-72 ◽  
Author(s):  
Jarmila Rimbalová ◽  
Silvia Vilčeková ◽  
Adriana Eštoková
Keyword(s):  
Air Quality ◽  
Quality Monitoring ◽  
Air Quality Monitoring ◽  
Outdoor Air ◽  
Outdoor Air Quality ◽  
Indoor And Outdoor

scholarly journals Development, Modeling and Control of a Dual Tilt-Wing UAV in Vertical Flight

Drones ◽  
2020 ◽  
Vol 4 (4) ◽  
pp. 71
Author(s):  
Luz M. Sanchez-Rivera ◽  
Rogelio Lozano ◽  
Alfredo Arias-Montano
Keyword(s):  
Dynamic Model ◽  
Attitude Control ◽  
Test Bench ◽  
Aerodynamic Coefficients ◽  
Nonlinear Dynamic Model ◽  
Modeling And Control ◽  
Drag And Lift ◽  
And Control ◽  
Dynamics Method ◽  
Indoor And Outdoor

Hybrid Unmanned Aerial Vehicles (H-UAVs) are currently a very interesting field of research in the modern scientific community due to their ability to perform Vertical Take-Off and Landing (VTOL) and Conventional Take-Off and Landing (CTOL). This paper focuses on the Dual Tilt-wing UAV, a vehicle capable of performing both flight modes (VTOL and CTOL). The UAV complete dynamic model is obtained using the Newton–Euler formulation, which includes aerodynamic effects, as the drag and lift forces of the wings, which are a function of airstream generated by the rotors, the cruise speed, tilt-wing angle and angle of attack. The airstream velocity generated by the rotors is studied in a test bench. The projected area on the UAV wing that is affected by the airstream generated by the rotors is specified and 3D aerodynamic analysis is performed for this region. In addition, aerodynamic coefficients of the UAV in VTOL mode are calculated by using Computational Fluid Dynamics method (CFD) and are embedded into the nonlinear dynamic model. To validate the complete dynamic model, PD controllers are adopted for altitude and attitude control of the vehicle in VTOL mode, the controllers are simulated and implemented in the vehicle for indoor and outdoor flight experiments.

scholarly journals The fragranced products phenomenon: air quality and health, science and policy

2020 ◽  
Author(s):  
Anne Steinemann
Keyword(s):  
Air Quality ◽  
Human Health ◽  
Consumer Products ◽  
Health Science ◽  
Future Research ◽  
Research Directions ◽  
Science And Policy ◽  
New Findings ◽  
Future Research Directions ◽  
Indoor And Outdoor

Abstract Fragrance is used in consumer products around the world. However, fragrance has been associated with adverse effects on indoor and outdoor air quality and human health. Questions arise, such as the following: Why does fragrance in products pose problems? What are sources of emissions and exposures? What are health and societal effects? What are possible solutions? This paper examines the issue of fragranced consumer products and its science and policy dimensions, with a focus on the implications for air quality and human health. Results include new findings and new questions for future research directions.

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