Results 61 to 70 of about 572 (202)

Automated valve fault detection based on acoustic emission parameters and support vector machine

open access: yesAlexandria Engineering Journal, 2018
Reciprocating compressors are one of the most used types of compressors with wide applications in industry. The most common failure in reciprocating compressors is always related to the valves.
Salah M. Ali   +3 more
doaj   +1 more source

Melt and Cold Crystallization Behavior of Poly(Lactic Acid) With Different Molecular Weights and Its Influence on Mechanical, Viscoelastic, and Tribological Properties

open access: yesPolymer Engineering &Science, EarlyView.
Modifying the crystallinity of PLA and its properties through annealing. ABSTRACT The melt and cold crystallization behavior of two PLA grades with different molecular weights was investigated using various DSC analyses. During isothermal melt crystallization, PLA with lower molecular weight exhibited faster crystallization kinetics across different ...
Rio M. Mungok   +2 more
wiley   +1 more source

Pressure Rippie in Receivers for Reciprocating Compressors

open access: yesJournal of the Society of Mechanical Engineers, 1949
往復圧縮機の試験の際, 空気槽容積をどの程度に選ぶべきかについては, いろいろな規格があるが, その示すところはきわめてまちまちで, ある方式では他の方式の数十倍も大きく規定し, またある方式では回転数の上昇と共に容積を減少すべしとしているのに, 他の方式では増加すべしとしているなどである.これは主として空気槽の脈動に関する資料が不足していることに原因するのであろう.これらの関係を明らかにするために, 筆者は圧縮機および送風機部門委員会の委嘱によつて, 日立製作所亀戸工場において実験を行い, 比較的適切と思われる脈動の算式を得た.本報告はこの結果である.
openaire   +2 more sources

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone   +3 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

Proposal of self-standing support method for vibration reduction of refrigerator compressors

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In household refrigerators, the rotational speed of a reciprocating compressor can be appropriately adjusted according to the temperature inside of the refrigerator. The lower rotational speed reduces the power consumption of the compressor.
Ko INAGAKI   +4 more
doaj   +1 more source

Organizing across cognitive asymmetry in human–AI collaboration: A study of perfume creation

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary As organizations increasingly adopt generative AI (GenAI), they face a strategic challenge: not only deciding which tasks AI should perform, but also how to organize the integration of human and AI efforts to produce viable solutions.
Tomoko Yokoi   +3 more
wiley   +1 more source

Reciprocating Compressor 1D Thermofluid Dynamic Simulation: Problems and Comparison with Experimental Data

open access: yesInternational Journal of Rotating Machinery, 2012
The authors here extend a 0D-1D thermofluid dynamic simulation approach to describe the phenomena internal to the volumetric machines, reproducing pressure waves’ propagation in the ducts.
A. Gimelli   +3 more
doaj   +1 more source

Exploiting Device Deformability for Fluid and Particle Manipulation

open access: yesSmall, EarlyView.
Deformable devices enable fluid and particle manipulation modes that are inaccessible to rigid platforms. This review examines soft materials and architectures that translate controlled deformation into microscale fluid operations such as pumping, valving, mixing, and particle handling.
Zhiyang Hong   +4 more
wiley   +1 more source

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