Results 121 to 130 of about 44,276 (294)

The spiral structure of the Galaxy revealed by CS sources and evidence for the 4:1 resonance

, 2010
We present a map of the spiral structure of the Galaxy, as traced by molecular CS emission associated with IRAS sources which are believed to be compact HII regions.
A. Roman-Lopes, Aalto, Abrahamyan, Amaral, Amôres, Azusienis, Backer, Berdnikov, Bica, Blum, Branham, Bronfman, Busfield, Caswell, Chernin, Chernin, Dias, Dias, Dobbs, Downes, Efremov, Eisenhauer, Elmegreen, Fernández, Fich, Figuerêdo, Foster, Georgelin, Grosbøl, Hitschfeld, Hou, J. R. D. Lépine, Kalnajs, Kolpak, Kuchar, Levine, Lockman, Lépine, Lépine, Lépine, Majaess, Metzger, Miyamoto, Méndez, Nikolaev, Nishiyama, Olling, Olling, Paladini, Patsis, Racine, Reid, Russeil, Rygl, Sanna, Scheepmaker, T. C. Junqueira, Vallée, Vázquez, Walter, Wink, Yu. N. Mishurov, Zulema Abraham   +62 more
core   +1 more source

A Review on Magnesium Based Metal Hydrides for Thermal Energy Storage Systems

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The hydrogen storage in metal hydrides is an imminent, innovative, and environmentally beneficial approach that offers benefits for example, an ample amount of storage and elasticity in terms of thermodynamics necessary for hydrogen absorption and release.
Asif Nizam, Prem Kumar Chaurasiya, Vinod Kumar Sharma, Ranjith Krishna Pai   +3 more
wiley   +1 more source

Research on Parametric Form Design Based on Natural Patterns

MATEC Web of Conferences, 2018
Parametric form design method based on natural patterns is proposed for the design schema of the traditional form bionics. Firstly, the concepts of natural patterns are analyzed, concluded and summarized.
Li X, Su JN
doaj   +1 more source

Reconstruction Experience Using Logarithmic Spiral Flap on the Nasal Sidewall. [PDF]

Ann Dermatol, 2020
Bang CH, Lee HJ, Han JH, Lee JH, Lee JY, Yu DS, Park YM.   +6 more
europepmc   +1 more source

Exergy and Economic Analysis of Hybrid Mechanical Vapor Compression and Membrane Distillation

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Hybridization of two or more desalination processes has been identified as an attractive option for improved energy efficiency and recovery rate. To appropriately assess the performance enhancement of hybrid desalination systems, an integrated approach for energy, exergy, economic, and environmental investigations should be adopted. This study
Emad Ali, Jamel Orfi
wiley   +1 more source

Tip streaming from drops flowing in a spiral microchannel

, 2008
This fluid dynamics video shows drops of water being transported by a mean flow of oil, in a microchannel shaped as a logarithmic spiral. The channel shape means that the drops are submitted to an increasing shear and elongation as they flow nearer to ...
Baroud, Charles N., Molesin, Simon
core  

Evaluation of Mechanical Properties of Phase‐Separated Cellulose Filler/Poly(Lactic Acid)/Elastomer Composites via Microstructure‐Informed Physics Simulation and In Situ Synchrotron X‐Ray Micro‐CT

Journal of Applied Polymer Science, EarlyView.
Phase‐separation microstructure and mechanical properties of a ternary biocomposite evaluated by integrated AFM, AFM‐informed FEM, and in situ X‐ray CT. ABSTRACT This study investigates phase‐separated cellulose filler/poly(lactic acid) (PLA)/elastomer ternary composites to enhance the mechanical performance of bioplastics. Atomic force microscopy (AFM)
Yoshiaki Kawagoe, Kazumasa Sasaki, Yuki Takayama, Keiichi Shirasu, Junsei Aoki, Soya Hayashi, Masayuki Omoto, Makoto Kato, Tomonaga Okabe   +8 more
wiley   +1 more source

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Generation of a galactic chronology with impact ages and spiral arm tangents

Scientific Reports
Resolving the role of galactic processes in Solar System/Earth events necessitates a robust temporal model. However, astrophysical theory diverges with models varying from long-lasting spiral density waves with uniform pattern speeds and arm structures ...
Michael Gillman, Rui Zhang
doaj   +1 more source

The Elliptic Logarithmic Spiral—a New Curve [PDF]

Nature, 1922
IF, in an elastic system with one degree of freedom, and friction proportional to the velocity, the relation of the “free” force to the displacement be considered, an interesting curve results.
openaire   +1 more source