Results 171 to 180 of about 6,081 (269)

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

Propulsion system needs [PDF]

The needs of the designer of a solid core nuclear rocket engine are discussed. Some of the topics covered include: (1) a flight thrust module/feed system module assembly; (2) a nuclear thermal rocket (NTR), expander cycle, dual T/P; (3) turbopump ...
Gunn, Stanley
core   +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

Effects of Air Injection on the Dynamic Characteristics of Sediment Deposition and Erosion Distribution in Pump-Turbine Runners. [PDF]

Sensors (Basel)
Liu H, Yang X, He Y, Lu J, Jiang L.
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

Numerical prediction of cavitation performance of a prototype pump as turbine based on CFD. [PDF]

Sci Rep
Zhang YL, Huang HF, Tong JB, Zhao YJ, Guo XM, Zhu ZC.   +5 more
europepmc   +1 more source

Impaired nitric oxide‐dependent endothelial function in young male individuals with obesity before the onset of symptoms and complications

Experimental Physiology, EarlyView.
Abstract Endothelial dysfunction drives obesity‐related complications. Doppler ultrasound measurement of blood flow during 1‐min passive leg movements (PLM) is a valuable non‐invasive tool for assessing endothelial function and nitric oxide (NO)‐mediated vasodilation.
Lucrezia Zuccarelli, Giovanni Baldassarre, Adele Bondesan, Diana Caroli, Roberta De Micheli, Gabriella Tringali, Thomas Favaretto, Joanna Suraj‐Prazmowska, Anna Kurpinska, Joanna Majerczak, Stefan Chlopicki, Jerzy A. Zoladz, Alessandro Sartorio, Bruno Grassi   +13 more
wiley   +1 more source

Study of Hydraulic Disturbance Transient Processes in Pumped-Storage Power Stations Considering Electro-Mechanical Coupling. [PDF]

Sensors (Basel)
Liu C, Zhao Z, Yin X, Yang J.
europepmc   +1 more source

Effect of hypoxia on muscle activation at equivalent absolute and relative intensity during incremental and constant load exercise to task failure

Experimental Physiology, EarlyView.
Abstract We examined the impact of moderate hypoxia (HYPO) on muscle activation during incremental exercise matched for both absolute and equivalent relative intensity. Fifteen active subjects (10 males, 5 females) completed two ramp incremental test and two step tests in normoxia (NORM; FiO2${F_{{\mathrm{i}}{{\mathrm{O}}_2}}}$ = 0.209) and HYPO (FiO2${
Dania Ibrahim, Youmna Elsayed Hassanein, Nathan E. Townsend   +2 more
wiley   +1 more source

Multiobjective Optimization Analysis of Gas-Steam Combined Cycle Coupled with Photovoltaic-Driven Hydrogen Electrolyzer System. [PDF]

ACS Omega
Chai L, Liu X, Song F, Huo Z, Wang W, Han Y.   +5 more
europepmc   +1 more source