Results 81 to 90 of about 674,520 (284)

STUDY OF TECHNICAL STATE IMPACT OF BRAKE RETARDERS AT THE PROCESSING ABILITY OF HUMPS

Nauka ta progres transportu, 2016
Purpose. The research aims development of methods for calculating the estimated capacity humps for the loss conditions of brake power retarders. Methodology.
D. M. Kozachenko, S. V. Grevtsov, T. V. Bolvanovska   +2 more
doaj   +1 more source

Some Remarks on the Excitation Threshold of Parametric Rolling in Non-Linear Modelling

, 2001
It is known that the parametric excited rolling in following seas can lead to dramatic roll amplitudes and eventually capsizing. On the other hand, the parametric rolling in head waves is a less studied phenomenon: in this case, relative ship velocity is
FRANCESCUTTO, ALBERTO, Dessi D.
core  

Ships parametric rolling

, 2021
Cilj ovog rada bio je opisati parametarsko ljuljanje broda i uvjete koje je potrebno ispuniti da bi došlo do te pojave. Čimbenici koji utječu na parametarsko ljuljanje broda mogu se podijeliti na čimbenike ovisne o brodu ili o uvjetima okoliša ...
Štimac, Ana
core  

Grayscale Photomasks Enable Noncontact Optical Patterning of Hydroxypropyl Cellulose Gels for Dynamic Art

Advanced Functional Materials, EarlyView.
Mask‐encoded UV exposure translates digital color information into pixel‐resolved structural‐color patterns in hydroxypropyl cellulose gels. Gaussian‐process‐guided calibration links UV processing conditions, wavelength, and mask opacity, enabling parallel fabrication of multicolor images in a single 10 s exposure.
Mengting Ye, Yunyi Zhu, Sai Sabareesh KS, Md Ashiqur Rahman Alif, Yichen Wan, Ruobing Bai, Narges Pourjafarian, Stefanie Mueller, Hongli Zhu   +8 more
wiley   +1 more source

Realization of Rolling Bearing Serialization based on CREO Platform

Jixie chuandong, 2015
For improving interchangeability of bearing product,the method of rolling bearing serializing design is researched under the environment of CREO. The parametric CAD model template of deep groove ball bearing 6208 is designed,and then the structural ...
Qiu Haifei
doaj  

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

Advanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa, Frank Kaulfuß, Stefan Makowski, Volker Weihnacht   +3 more
wiley   +1 more source

Residual stress distribution and evolution in gear shaft journals induced by mechanical roll hardening: experimental characterization and numerical prediction

Frontiers in Mechanical Engineering
To mitigate residual tensile stresses in the surface layer of machined 30CrMoA gear journal shafts, which readily initiate fatigue cracks and degrade in-service reliability, this study investigates a localized deep rolling hardening process for the ...
Wenkai Su, Xigui Wang, Chuanzhen Yang
doaj   +1 more source

Early Age Carbonation of Fiber-Cement Composites under Real Processing Conditions: A Parametric Investigation

Applied Sciences, 2018
This paper presents the outcome of a comprehensive experimental program undertaken to study the performance of cellulose pulp and synthetic PVA (polyvinyl alcohol) based fiber-cement composite under both carbonated and non-carbonated curing conditions at
Bundit Kottititum, Quoc Tri Phung, Norbert Maes, Wichit Prakaypan, Thongchai Srinophakun   +4 more
doaj   +1 more source

Managing Charge Transport and Exciton Generation for Highly Efficient, Bright, and Stable Near‐Infrared Organic Radical Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
High‐performing near‐infrared (NIR) organic light‐emitting diodes are demonstrated using an efficient and stable 800 nm‐emissive organic radical and a thermally activated delayed fluorescence (TADF) host. TADF‐assisted exciton generation combined with improved charge transport enables high external quantum efficiency (>8%), high radiance (>70,000 mW sr−
Hwan‐Hee Cho, Min‐Hsuan Chang, Yi‐Syun Chen, Tetsuro Kusamoto, Emrys W. Evans, Yuh‐Renn Wu, Richard H. Friend   +6 more
wiley   +1 more source

Modern Container Ships and the Parametric Rolling Phenomenon [PDF]

, 2015
Suvremeni kontejnerski brodovi su dizajnirani na način da udovoljavaju zahtjevima povećanog kapaciteta te da postižu velike brzine, što uvjetuje relativno nizak blok koeficijent. Navedena obilježja čine ga najpodložnijim utjecaju parametrijskog ljuljanja.
Komadina, Pavao, Erak, Ivan, Ivče, Rento   +2 more
core   +1 more source