Results 51 to 60 of about 546,948 (250)

An analysis of ResearchGate and Academia. edu as socio-technical systems for scholars’ networked learning: a multilevel framework proposal

Italian Journal of Educational Technology, 2017
Academic social network sites (ASNS) like ResearchGate and Academia.edu are digital platforms for information sharing and systems for open dissemination of scholarly practices that are gaining momentum among researchers of multiple disciplines.
Stefania Manca
doaj   +1 more source

ٍSome Kinematic variables of running –approach and its relation with the Level of Achievemeub in Long-jump [PDF]

مجلة الرافدين للعلوم الرياضية, 2006
: The researcher aims at studying the values of the Kinematic variables in connection with the approach run , such as its distance , duration ,speed rate ,momentum ,motion energy , and the number of steps in it , the work also aims to study the ...
Ammar A. Ehssan
doaj   +1 more source

Control of rotorcraft retreating blade stall using air-jet vortex generators [PDF]

, 2006
A series of low-speed wind tunnel tests were carried out on an oscillating airfoil fitted with two rows of air-jet vortex generators (AJVGs). The airfoil used had an RAE 9645 section and the two spanwise arrays of AJVGs were located at x/c=0.12 and 0.62.
Akanni S. D., Alferai M., Anastasios Kokkalis, Bousman W. G., Carr L. W., Chan W., Chrisminder Singh, Coton F. N., David J. Peake, Frank N. Coton, Green R. B., Johnson W., Lewington N. P., McCloud J. L., III, McCroskey W. J., Robinson M. C., Roderick A. McD. Galbraith, Singh C., Teves D., Vahik Khodagolian, Weaver D., Wilby P. G., Wilby P. G.   +22 more
core   +1 more source

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

Advanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source

Calculation and uncertainty analysis method for airfoil drag coefficient considering compressibility

AIP Advances
In order to meet the need of evaluating the effectiveness of airfoil drag reduction design, the calculation and uncertainty analysis method for airfoil drag coefficient considering compressibility is studied.
Yufeng Du, Qiuting Guo, Lulu Wang, Jilong Zhu, Neng Xiong   +4 more
doaj   +1 more source

Interacting Dipoles from Matrix Formulation of Noncommutative Gauge Theories [PDF]

, 2001
We study the IR behavior of noncommutative gauge theory in the matrix formulation. We find that in this approach, the nature of the UV/IR mixing is easily understood, which allows us to perform a reliable calculation of the quantum effective action for ...
A. Matusis, C.P. Martin, C.P. Martin, D. Bigatti, D. Gross, Eric Nicholson, F.R. Ruiz, H. Liu, H. Liu, H. Liu, Li Jiang, M. Van Raamsdonk, M.M. Sheikh-Jabbari, N. Ishibashi, N. Seiberg, N. Seiberg, R. Gopakumar, S. Das, S. Iso, S. Minwalla, S.J. Rey, T. Krajewski, V.V. Khoze, Y. Kiem, Y. Kiem, Y. Kiem, Z. Yin   +26 more
core   +4 more sources

Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures

Advanced Functional Materials, EarlyView.
3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina, Luke Alexander Turnbull, Weijie Xu, Markus König, Paul Simon, Wilder Carrillo‐Cabrera, Amalio Fernández‐Pacheco, Uri Vool, Dieter Suess, Claas Abert, Vladimir M. Fomin, Claire Donnelly   +11 more
wiley   +1 more source

General View of the Research Studies on World Viticulture In The Last Decade

Yüzüncü Yıl Üniversitesi Tarim Bilimleri Dergisi, 2021
It is seen that research subjects are shaped especially under the effect of climate change and that practices that will minimize possible negative effects are examined.
Zeliha GÖKBAYRAK, Burçak İŞÇİ, Nurhan KESKİN   +2 more
doaj   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Qweak: First Direct Measurement of the Proton’s Weak Charge

EPJ Web of Conferences, 2017
The Qweak experiment, which took data at Jefferson Lab in the period 2010 - 2012, will precisely determine the weak charge of the proton by measuring the parity-violating asymmetry in elastic e-p scattering at 1.1 GeV using a longitudinally polarized ...
Androic D., Armstrong D.S., Asaturyan A., Averett T., Balewski J., Bartlett K., Beaufait J., Beminiwattha R.S., Benesch J., Benmokhtar F., Birchall J., Carlini R.D., Cates G.D., Cornejo J.C., Covrig S., Dalton M.M., Davis C.A., Deconinck W., Diefenbach J., Dowd J.F., Dunne J.A., Dutta D., Duvall W.S., Elaasar M., Falk W.R., Finn J.M., Forest T., Gal C., Gaskell D., Gericke M.T.W., Grames J., Gray V.M., Grimm K., Guo F., Hoskins J.R., Johnston K., Jones D., Jones M., Jones R., Kargiantoulakis M., King P.M., Korkmaz E., Kowalski S., Leacock J., Leckey J., Lee A.R., Lee J.H., Lee L., MacEwan S., Mack D., Magee J.A., Mahurin R., Mammei J., Martin J.W., McHugh M.J., Meekins D., Mei J., Michaels R., Micherdzinska A., Mkrtchyan A., Mkrtchyan H., Morgan N., Myers K.E., Narayan A., Ndukum L.Z., Nelyubin V., Nuhait H., Nuruzzaman, van Oers W.T.H, Opper A.K., Page S.A., Pan J., Paschke K.D., Phillips S.K., Pitt M.L., Poelker M., Rajotte J.F., Ramsay W.D., Roche J., Sawatzky B., Seva T., Shabestari M.H., Silwal R., Simicevic N., Smith G.R., Solvignon P., Spayde D.T., Subedi A., Subedi R., Suleiman R., Tadevosyan V., Tobias W.A., Tvaskis V., Waidyawansa B., Wang P., Wells S.P., Wood S.A., Yang S., Young R.D., Zang P., Zhamkochyan S.   +100 more
doaj   +1 more source