Results 81 to 90 of about 367,886 (378)
Advanced Functional Materials, EarlyView.A soft, compact, and cuffless system for continuous blood pressure monitoring using laser‐sintered liquid metal conductors is developed. The stretchability and sensitivity of the device enable real‐time, non‐invasive tracking of blood pressure, including recovery after exercise. This wearable device offers a practical solution for managing hypertension
Jung Jae Park +6 more
wiley +1 more source
Tuning of a Motorcycle Two-stroke Engine [PDF]
, 2015 Import 23/07/2015CIESLAR, P. Zvýšení výkonu dvoudobého motoru motocyklu : bakalářská práce. Ostrava : VŠB - Technická univerzita Ostrava, Fakulta strojní, Katedra částí a mechanismů strojů, 2015, 44 s. Vedoucí práce: Pišťáček, D.
Cieslar, Pavel
core
Optical study of flow and combustion in an HCCI engine with negative valve overlap [PDF]
, 2006 One of the most widely used methods to enable Homogeneous Charge Compression Ignition (HCCI) combustion is using negative valve overlapping to trap a sufficient quantity of hot residual gas. The characteristics of air motion with specially designed valve
Megaritis, T +4 more
core +1 more source
Two-stroke Quantum Measurement Heat Engine
, 2022 We propose and analyze the theoretical model for a two-stroke quantum heat engine with one of the heat baths replaced by a non-selective quantum measurement. We show that the engine's invariant reference state depends on whether the cycle is monitored or unmonitored via diagnostic measurements to determine the engine's work output. We explore in detail
Alam, M. Sahnawaz +1 more
openaire +2 more sources
Flexible Optical Fiber Stress/Temperature Dual‐Mode Sensing Based on CaZnOS:Nd,Er
Advanced Functional Materials, EarlyView.Temperature and stress sensing based on flexible optical fibers may be the key to future artificial intelligence's perception of the world, here an optical fiber sensor capable of realizing such dual mode sensing is preliminary confirmed based on CaZnOS:Nd3+,Er3+.
Pan Zheng +12 more
wiley +1 more source
Nauka ta progres transportu, 2020 Purpose: The investigation covers the efficiency of working cycles in the rapid internal combustion engine with the extended working stroke. The extended working stroke is applied in so-called Atkinson/Miller engines that are considered to be more ...
P. М. Hashchuk, S. V. Nikipchuk
doaj +1 more source
, 1982 A solar engine is disclosed in which a fluid, which is first heated and then cooled, forces a piston outward as the fluid is heated, and then draws the piston inward as the fluid is cooled. The piston is connected to a shaft and produces work as it moves
Jensen, R. N.
core +1 more source
Substrate Engineering for Durable Omniphobic Liquid‐Like Surfaces
Advanced Functional Materials, EarlyView.The significant yet less investigated role of substrates in determining the liquid‐repellency and mechanical durability of liquid‐like surfaces (LLSs) is explored. Thick and crack‐free sol–gel silica intermediary layers are developed that can smoothen substrate asperity roughness even at the micron scale, enabling omniphobic polydimethylsiloxane‐based ...
Tao Wen +6 more
wiley +1 more source
Two-Stroke Thermodynamic Cycle Optimization of a Single-Cylinder Free-Piston Engine Generator
Advances in Materials Science and Engineering, 2019 A free-piston engine generator (FPEG) is a new type of energy converter, which eliminates the crankshaft and connecting rod mechanism. In order to achieve efficient energy conversion, the two-stroke thermodynamic performance optimization of a single ...
Houliang Yu +4 more
doaj +1 more source
Optimization of Fuel Injection Control System of Two-Stroke Aeroengine of UAV
Complexity, 2020 Power efficiency of two-stroke spark-ignition engine is generally low because improper amount of fuel injection leads to a lot of unburned fuel loss during the engine working process.
Yixuan Wang +6 more
doaj +1 more source