Results 141 to 150 of about 46,180 (274)

Investigation of the Centaur boost pump overspeed condition at main engine shutdown on the Titan Centaur TC-2 flight [PDF]

An investigation was conducted to evaluate a potential boost pump overspeed condition which could exist on the Titan/Centaur launch vehicle after main engine shut-off.
Baud, K. W.
core   +1 more source

Influence of Chronotype on Cycling Performance in Simulated 20‐km Time Trials—A Pilot Study

Journal of Sleep Research, EarlyView.
Evening‐type athletes show improved cycling performance later in the day, whilst morning types peak earlier. These differences appear linked to variations in mental readiness and sleepiness, highlighting the importance of considering chronotype in performance planning.
Sabrina Forster, Sascha Schwindling, Chris Abbiss, Fabienne Döringer, Andreas Klütsch, Anne Hecksteden, Tim Meyer   +6 more
wiley   +1 more source

Design, commissioning and performance of a device to vary the turbulence in a recirculating flume

, 2013
Ambient turbulent flow structures are one of the key drivers that will determine the rate of wake recovery downstream of tidal turbines. For second and third generation arrays or farms such a parameter is critical for the determination of inter-device ...
Galloway, P.W., Myers, L.E., Shah, K.D
core  

Review of Water Supply, Treatment and Distribution: Overcoming Challenges for Sustainable Management

Water and Environment Journal, EarlyView.
ABSTRACT Water management faces increasing challenges driven by population growth, accelerated urbanization and climate change, demanding integrated and sustainable approaches to ensure the preservation of water resources. Water scarcity and rising demand intensify the vulnerability of various regions, threatening both water supply and environmental ...
André Linneo Tocchetto, Heloisa Serafim Kuakoski, Fernando Henrique Lermen, Sandro Deretti, Murillo Vetroni Barros, Gustavo de Souza Matias   +5 more
wiley   +1 more source

Commuting by bicycle (vs. by car) is associated with improved aerobic power, microvascular function and diminished CO2 output in the atmosphere

Experimental Physiology, EarlyView.
Abstract The study investigated whether bicycle compared with car commuting, over relatively small distances, has positive effects on physiological variables, cardiometabolic fitness and CO2 output in the atmosphere. Bike Commuters (11 M, 15 F; age [median value (interquartile range)] 51.5 (38.3–56.8) years; body mass index [BMI] 22.8 (21.0–24.1) kg m ...
Caterina Ursella, Giovanni Baldassarre, Lucrezia Zuccarelli, Federica Caponnetto, Francesco Curcio, Mattia D'Alleva, Maria De Martino, Elisabetta Fontanini, Andrea Palomba, Antonio Paolo Beltrami, Federico Formenti, Bruno Grassi   +11 more
wiley   +1 more source

Early acclimatization to high altitude: Acid–base and fluid balance dynamics during the first 2 days at 3100 m

Experimental Physiology, EarlyView.
Abstract Immediate responses to hypoxia at high altitude are hyperventilation and successive respiratory alkalosis. Alkalosis, in turn, can affect cerebrospinal fluid pH and ventilatory control. The kidneys compensate metabolically for respiratory alkalosis.
Elisabeth Skalla, Benedikt Treml, Sasa Rajsic, Michael Schreinlechner, Zoran Bukumirić, Klaus Berek, Alexander Egger, Johann Knotzer, Martin Burtscher, Axel Kleinsasser   +9 more
wiley   +1 more source

Correction: A theoretical model for predicting the startup performance of pumps as turbines. [PDF]

Sci Rep
Zhang YL, Zhao YJ, Zhu ZC.
europepmc   +1 more source

How do physiological networks respond to normobaric hypoxia and isometric exercise?

Experimental Physiology, EarlyView.
Abstract The dynamics of physiological systems are impacted by both exercise and hypoxia. Network models can be used to map the interactions between various physiological components in environmental physiology and exercise using the concepts of information theory.
Danilo Bondi, Cecilia Morandotti, Salvatore Annarumma, Carmen Santangelo, Tiziana Pietrangelo, Stefania Fulle, Vittore Verratti   +6 more
wiley   +1 more source

Comprehensive energy audit and conservation strategy for public buildings: enhancing energy efficiency and grid sustainability. [PDF]

Sci Rep
Habib S, Tamoor M, Gulzar MM, Murtaza AF, Shafiullah M, Alsafrani A.   +5 more
europepmc   +1 more source

Theory and Design of Flight-Vehicle Engines [PDF]

Papers are presented on such topics as the testing of aircraft engines, errors in the experimental determination of the parameters of scramjet engines, the effect of the nonuniformity of supersonic flow with shocks on friction and heat transfer in the ...
Kurziner, R. I., Zhdanov, V. T.
core   +1 more source