Results 41 to 50 of about 12,335 (243)

Mengurus masyarakat Singapura gaya Lee Kuan Yew: satu legasi [PDF]

open access: yes, 2020
Lee Kuan Yew (LKY) negarawan unggul Asia Tenggara yang berjaya menggerakkan tindakan-tindakan pragmatik dengan nilai dan gaya kepimpinan berkesan demi mencapai visi pembangunan Singapura. Memiliki pengalaman politik hampir 60 tahun (1955-2011) menjadikan
Jaes, Lutfan   +3 more
core  

Energy efficiency opportunities in the service plants of cast iron foundries in Italy [PDF]

open access: yes, 2017
Though in a foundry most of the energy is used in the process plants and particularly in energizing furnaces, service plants require absolutely large amounts of energy, above all as electricity.
Lazzarin, Renato, Noro, Marco
core   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Influence of compressible medium on the operation of a reciprocating compressor

open access: yesMATEC Web of Conferences, 2018
A reciprocating compressor is a volumetric machine. Consequently, the motion of gas in communications always is of non-stationary or pulsating character. The diagram of oscillatory processes in communications is complex because a number of factors affect
Kotlov Andrey   +2 more
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Impact Fatigue Characteristics of Valve Leaves for Small Hermetic Reciprocating Compressors [PDF]

open access: yes, 2010
This paper presents an investigation on the impact fatigue characteristics of valve leaves that are prevalently used in hermetic reciprocating compressors especially for the household type refrigerators.
Altunlu, A. Can   +3 more
core   +3 more sources

Ultra‐High Friction and Adhesion in Hydrogel Layer Driven by Wet‐to‐Dry Transition Dynamics

open access: yesAdvanced Science, EarlyView.
This work reveals a critical wet‐to‐dry transition in polyacrylamide hydrogel layers that induces volumetric shrinkage, resulting in enhanced interfacial contact and dramatically increased friction and adhesion. Leveraging this transition enables strong, reversible gripping on diverse surfaces, offering new insights for hydrogel‐based gripping ...
Chenxu Liu   +11 more
wiley   +1 more source

Analysis of compressor performance using data-driven machine learning techniques

open access: yesJournal of Engineering and Applied Science
The verification of mathematical models for multistage reciprocating compressors is crucial for ensuring their accuracy and reliability. In this study, we used different machine learning (ML) models to verify the results of MATLAB-based models of single ...
Pravin Hujare   +5 more
doaj   +1 more source

Stress analysis and fatigue life prediction of a wobble-plate [PDF]

open access: yes, 2006
A five-stage compressor for compressing natural gas is being designed and evaluated. The compressor operates at 1500 rpm with natural gas pressure of 50 psi.
Osman Ali, Hassan
core  

Injectable Chondroitin Sulfate Methacrylate Hydrogel Microspheres Co‐Loaded with GLPM Nanozyme, Dexamethasone, and Stem Cells for Synergistic Osteoarthritis Therapy

open access: yesAdvanced Science, EarlyView.
A multifunctional injectable microsphere system is fabricated via UV‐assisted microfluidic cross‐linking, integrating nanozyme‐based ROS scavenging, sustained dexamethasone release, and stem cell delivery. Upon IA injection, the microspheres adapt to joint stress, suppress inflammation, and promote cartilage regeneration, offering a minimally invasive ...
Xiaochen Feng   +10 more
wiley   +1 more source

Home - About - Disclaimer - Privacy