Results 21 to 30 of about 43,242 (248)

Unstable simultaneous whirl of two cylinders in a concentric double rotating cylinder system

Mechanical Engineering Journal
This study investigated the unstable simultaneous whirl of two cylinders in a concentric double rotating cylinder system, with both co- and counter-rotation. The axes of both cylinders were radially elastically supported independently of each other.
Fumitaka YOSHIZUMI, Masanori IRITANI
doaj   +1 more source

Isolamento do alcalóide ricinina das folhas de Ricinus communis (Euphorbiaceae) através de cromatografias em contracorrente Isolation of the alkaloid ricinine from the leaves of Ricinus communis (Euphorbiaceae) through counter-current chromatography

Química Nova, 2005
Droplet counter-current chromatography, rotation locular counter-current chromatography and high-speed counter-current chromatography were applied to the preparative separation of the alkaloid ricinine from the dichloromethane extracts of Ricinus ...
Ana Cristina Leite, Elaine Cristina Cabral, Djalma Antônio P. dos Santos, João Batista Fernandes, Paulo Cezar Vieira, M. Fátima das G. F. da Silva   +5 more
doaj   +1 more source

Sawtooth activities in EAST neutral beam injection plasma

AIP Advances, 2019
Neutral beam injection (NBI) system has been proved to affect sawtooth activities through both producing energetic particles and supplying torque applied to the plasma.
Yan Chao, Liqing Xu, Liqun Hu, Yi Yuan, Yongkuan Zhang, Bo Lyu, Guoqiang Zhong, Yong Liu, Haiqing Liu, Hongfei Du   +9 more
doaj   +1 more source

Facial soft tissue response to maxillo-mandibular advancement in obstructive sleep apnea syndrome patients

Head & Face Medicine, 2017
Background Facial profile soft tissue changes after orthognathic surgery are crucial for surgery success. This retrospective study evaluated soft tissue changes after maxillo-mandibular Advancement and counter clockwise rotation surgery in obstructive ...
Julio Cifuentes, Christian Teuber, Alfredo Gantz, Ariel Barrera, Gholamreza Danesh, Nicolas Yanine, Carsten Lippold   +6 more
doaj   +1 more source

Maxillofacial morphological factors related to acceleration of maxillary growth attributed to facial mask treatment: a structural superimposition study

Progress in Orthodontics, 2019
Background Anatomical textbooks mention that the contact between the pterygoid process and the palatine’s pyramidal process is not a “suture” but “conjugation.”.The aim was to evaluate the maxillofacial morphological factor responding most to the ...
Takashi S. Kajii, Yui Sakaguchi, Yoshihiko Sawa, Sachio Tamaoki   +3 more
doaj   +1 more source

Design procedure for a wind-wheel with self-adjusting blade mechanism

Trudy Odesskogo Politehničeskogo Universiteta, 2014
Developed is a wind-wheel design equipped with the self-adjusting blade. The blade is positioned eccentrically to the balance wheel and can freely rotate around its axis. Elaborated is the method of calculating the energy characteristics for a wind-wheel
Gennady A. Oborsky, Вoris А. Morgun, Аnatoliy N. Bundyuk   +2 more
doaj   +1 more source

A REVIEW ON COUNTER-ROTATING WIND TURBINES DEVELOPMENT [PDF]

Journal of Sustainable Energy, 2016
On a dynamic energy market characterized by the constant energy demand increase and economic as well as environmental constraints, the study and development of efficient conversion systems of wind’s energy has been approached by a considerable ...
OPRINA G., CHIHAIA R.A., EL-LEATHEY L.A., NICOLAIE S., BĂBUȚANU C.A., VOINA A.   +5 more
doaj  

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Instability of counter-rotating stellar disks [PDF]

Journal of Physics: Conference Series, 2015
6 pages, 3 ...
Hohlfeld, Robert G., Lovelace, Richard V. E.   +1 more
openaire   +2 more sources

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source