Results 121 to 130 of about 180,387 (302)

Research on Key Technologies of Temperature Rise Suppression for Motor Grease Lubricated Rolling Bearing

机车电传动, 2020
At present, grease lubrication is widely used in motor rolling bearings. However, the bearing DN value increases rapidly with the increasing of motor speed and power for the factor that the lubricating grease is semi-solid with poor flow and heat ...
Baoying SHE, Sizhou GUO, Ronghai MEI, Haijiang LI, Jiawei CAO   +4 more
doaj  

Developing a Heterogeneous Attenuation Model for Fiber Reinforced Thermoplastic Composites in the Kilohertz Region of the Ultrasonic Spectrum

Polymer Composites, EarlyView.
Acquisition, filtering and modeling by genetic programming (tree pattern) of the acoustic signal for fiber‐filled composites. ABSTRACT This study experimentally investigated the discrete phase contributions of fibers and entrapped air on the attenuation spectrum of a fiber‐filled thermoplastic composite and derives a mathematical expression for sound ...
Austin D. Bedrosian, Andrew Hrymak, Gisela Lanza, Michael R. Thompson   +3 more
wiley   +1 more source

Keberkesanan pengaplikasian e-modul semiconductor devices menggunakan augmented reality bagi Pelajar Kejuruteraan Elektronik di Politeknik Merlimau, Melaka [PDF]

, 2018
Augmented Reality (AR) kini digunakan secara meluas dalam kehidupan seharian, salah satunya adalah dalam bidang pendidikan. Pada masa kini, aplikasi AR dapat diintegrasikan untuk meningkatkan standard kurikulum yang digunakan, seperti teks, grafik, video,
Johar, Siti Hajar
core  

Evolution of normal and superconducting properties of single crystals of Na$_{1-\delta}$FeAs upon interaction with environment

, 2011
Iron-arsenide superconductor Na$_{1-\delta}$FeAs is highly reactive with the environment. Due to the high mobility of Na ions, this reaction affects the entire bulk of the crystals and leads an to effective stoichiometry change.
Blomberg, E. C., Cho, Kyuil, Dai, Pengcheng, Prozorov, R., Spyrison, N., Tan, Guotai, Tanatar, M. A., Yan, Jiaqiang, Zhang, Chenglin   +8 more
core   +1 more source

Enhancement of Interfacial Strength and Corrosion Resistance of Adhesives via Synergistic Effect of Metallic Surface Treatment and α‐ZrP Nanosheets

Polymer Composites, EarlyView.
Synergistic enhancement of interfacial strength through α‐ZrP nanosheet reinforcement of polyurethane adhesive and aluminium anodization. ABSTRACT Polyurethane (PU) nanocomposites with enhanced mechanical performance and adhesive bonding are crucial for aerospace and automotive applications. This study investigates the reinforcing effect of α‐zirconium
Tomiris Zhumagaliyeva, Umut Bakhbergen, Sadyr Sabitov, Gulnur Kalimuldina, Aishuak Konarov, Fethi Abbassi, Sherif Araby   +6 more
wiley   +1 more source

X-ray fluorescence surface contaminant analyzer: A feasibility study [PDF]

The bonding of liner material to the inner metal surfaces of solid rocket booster cases is adversely affected by minute amounts of impurities on the metal surface.
Eldridge, Hudson B.
core   +1 more source

Line cutter Patent [PDF]

, 1967
Piston in bore cutter for severing parachute control lines and sealing cable hole to prevent water leakage into ...
Chandler, J. A., Grubbs, T. M.
core   +1 more source

Comparing the In‐Plane Shear Behavior of Glass Fiber‐Reinforced and Carbon Fiber‐Reinforced Polymer Laminates With the Same Epoxy Matrix System in ±45° Tensile Tests

Polymer Composites, EarlyView.
Schematic illustration of ±45° tensile testing, including detection of first‐ply failure (FPF) by optical crack detection and acoustic emission monitoring, comparison of FPF values with ASTM D3518 and D3039 criteria, and resulting ply level stress states at FPF for GF‐ and CF‐epoxy laminates.
Maria Gfrerrer, Vasco D. C. Pires, Andreas J. Brunner, Clara Schuecker, Gerald Pinter   +4 more
wiley   +1 more source

Innovative Stormwater Treatment Technologies: Best Management Practices Manual [PDF]

, 2002
Urban stormwater carries a number of pathogens, nutrients, heavy metals, sediment, and other contaminants as surface runoff flows over land. The increase in impervious or paved surfaces associated with development in urban areas reduces the natural ...
Bisbee, G. Dana, Jones, Jillian E, Stewart, Harry T   +2 more
core   +1 more source

Design and Statistical Optimization of PLA Organoclay‐Based Dispersions for Recyclable Packaging Paper

Polymer Engineering &Science, EarlyView.
Through experimental design, polylactic acid (PLA)—organoclay dispersions were optimized to produce biobased coatings that have a high barrier potential while maintaining repulpability, promoting sustainable packaging solutions. ABSTRACT Performance and recyclability of paper coatings depend on precise control of polymer, surfactant, filler ...
Abdenour Chenni, Mostafa Eesaee, Bruno Chabot, Simon Barnabé, Julien Bley, Balazs Tolnai, Guy Njamen, Phuong Nguyen‐Tri   +7 more
wiley   +1 more source