Results 81 to 90 of about 1,829 (238)

Near‐Armchair‐Enriched Growth of Single‐Walled Carbon Nanotubes via W‐Containing Fe‐Based Catalyst Systems in Mist FC‐CVD

Small, EarlyView.
A mist‐based floating catalyst chemical vapor deposition (mist FC‐CVD) strategy allows the use of non‐volatile precursors and multi‐component catalyst delivery in a continuous process. Through catalyst composition control, it generates near‐armchair‐enriched single‐walled carbon nanotubes (SWCNTs) and uncovers key factors governing chiral‐angle ...
Hirotaka Inoue, Takamasa Onoki, Akira Takakura, Anastasios Karakassides, Hua Jiang, Toshihiko Fujimori, Esko I. Kauppinen   +6 more
wiley   +1 more source

机械式压力机曲柄六杆机构运动学特性分析

Jixie chuandong, 2011
Compared with crank and slider mechanism,the ultimate output component with crank toggle as a combination transmission mechanism has some better characteristics for transmitting movement and force.The relation of position,speed and acceleration between ...
王粟, 覃岭, 阮卫平, 伍伟杰, 胡建国   +4 more
doaj  

Investigating Behavior of Slider–Crank Mechanisms with Bearing Failures Using Vibration Analysis Techniques

Mathematics
This study focuses on investigating the behavior of slider–crank mechanisms with different bearing failures using a vibration analysis technique. The reliability and lifespan of bearings are crucial for such mechanisms, which convert rotary motion to ...
Mofareh Hassan Ghazwani, Van Vinh Pham
doaj   +1 more source

Queering Institutional Milestones in Elite Higher Education: Queer Perspectives on Princeton University and Coeducation (1960–1980)

Gender &History, EarlyView.
ABSTRACT A new archive of oral history interviews from LGBTQIA‐identified alumni, faculty and staff reveals the complex ways that queer and transgender students understood, experienced and remembered the long transition from single‐sex to coeducation at Princeton University.
Ezelle Sanford III, Judy Jarvis, Eric Anglero   +2 more
wiley   +1 more source

Swinging double slider-crank

, 2011
The double slider-crank mechanism was an early method for drawing ellipses. Two prongs of a fixed metal bar slide freely in two perpendicular slots. The bar has an extension that can be locked down.
Pegg Jr, Ed
core  

THE CRANK-SLIDER MECHANISM FUNCTIONALITY

Journal of Mathematics, Mechanics and Computer Science, 2023
A. Tuleshov, Yu. Drakunov, B. Akhmetova, M. Kuatova, A. Shadymanova   +4 more
openaire   +1 more source

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer, Abdulrahman Alsuhaibani, Charlène Bouchaud, Elora Chambraud, Vladimir Dabrowski, Hatem Djerbi, Fabien Lesguer, Hervé Monchot, Paul Picavet, Louise Purdue, Bertrand Riba, Shadi Shabo   +11 more
wiley   +1 more source

Unmothered at Work: Organizational Silence Around Reproductive Loss

Gender, Work &Organization, EarlyView.
ABSTRACT An identity transition refers to changes in self‐concept that can result from professional or personal shifts. Although organizations increasingly support institutionally legible and culturally normative nonwork transitions, others remain professionally stigmatized or culturally unspeakable.
Katrina M. Brownell
wiley   +1 more source

The influence of cutting height on arthropods in farm grassland

Insect Conservation and Diversity, EarlyView.
Mowing at a cutting height of 13 cm slightly reduced the immediate negative impact of mowing compared to mowing at a height of 7 cm. Medium‐term effects overrode this benefit: the number of vegetation‐dwelling arthropods remained strongly reduced two and four weeks after mowing, regardless of the cutting height.
Lea von Berg, Jonas Frank, Stefanie Erhardt, Oliver Betz, Johannes L. M. Steidle, Stefan Böttinger, Manuela Sann   +6 more
wiley   +1 more source

Partially compliant spatial slider–crank (RSSP) mechanism

, 2011
In this study, a novel compliant mechanism, "partially compliant spatial slider-crank (RSSP)" is proposed. All possible configurations of compliant RSSP mechanisms are classified and discussed.
Engin Tanık, PARLAKTAŞ, VOLKAN, TANIK, ENGİN, Volkan Parlaktaş   +3 more
core   +1 more source