Results 81 to 90 of about 2,424,945 (201)

Analitic Investigation of the Regularities of Changing Dust Concentration During the Abrasive Decrease of Stone Structures [PDF]

, 2018
In the process of repair or restoration of building structures, it is often necessary to strengthen building structures from limestone-shell rock, concrete, reinforced concrete, hard materials-granite, basalt, etc.
Bezpalova, A. (Alla), Lebedev, V. (Vladimir), Morozov, Y. (Yuri)   +2 more
core   +2 more sources

Internal friction Q factor measurements in lunar rocks [PDF]

Investigations to aid in the interpretation of seismic data obtained below the lunar surface are reported. Fine grained basalt with about 1.0% open core porosity was encapsulated under hard vacuum and measured.
Tittmann, B. R.
core   +1 more source

Learner success in eLearning : room for improvement-- but how? : an analysis of the problem of retention and completion in an online programme : a thesis presented in partial fulfilment of the requirements for the degree of Master of Education in Adult Education at Massey University [PDF]

, 2006
Lack of time to work on their online programme was a more significant barrier for students on an online programme than problems such as cost, access to a computer, computer difficulties, childcare or other family responsibilities, or lack of employer ...
Roberts, Christine
core  

Dexamethasone Intravitreal Implant in Diabetic Macular Edema: Real-Life Data from a Prospective Study and Predictive Factors for Visual Outcome

Diabetes Therapy, 2017
IntroductionThe purpose of the study was to evaluate the long-term anatomical and functional outcomes in patients with diabetic macular edema (DME) treated with intravitreal dexamethasone implant and to determine the predictive factors for the final ...
I. Chatziralli, P. Theodossiadis, E. Parikakis, E. Dimitriou, T. Xirou, G. Theodossiadis, S. Kabanarou   +6 more
semanticscholar   +1 more source

First detection of hard X-ray photons in the soft X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007: The X-ray photon distribution observed by Swift

, 2008
We report on the first detection of hard X-ray photons (E>2.5 keV) in the X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007 which was the AGN with the softest X-ray spectrum during the ROSAT All-Sky Survey.
Arnaud, Berrington, Beuermann, Brandt, Brandt, Costantini, Dirk Grupe, Done, Elvis, Fabian, Gehrels, Gehrels, Ghosh, Grupe, Grupe, Grupe, Grupe, Grupe, Grupe, Grupe, Grupe, Hogg, Karen M. Leighly, Kaspi, Kataoka, Komossa, Komossa, Komossa, Komossa, Leighly, Leighly, Leighly, Leighly, Markwardt, Park, Sambruna, Schlegel, Stefanie Komossa, Voges, Wamsteker, Winkler   +40 more
core   +1 more source

Study of β-Cyclodextrin Effect on Acidity Constant of 2-(2H-Benzo(d)(1,2,3) triazol-2-yl) phenol by Spectrophotometry

E-Journal of Chemistry, 2010
The interaction of solutes with β-cyclodextrin leads to apparent changes in their chemical properties, such as shifts in their absorption spectra and acid-base equilibrium.
Amir H. M. Sarrafi, Elahe Konoz, Negin Ghorashi   +2 more
doaj   +1 more source

New Structural Economics : A Framework for Rethinking Development

, 2011
As strategies for achieving sustainable growth in developing countries are re-examined in light of the financial crisis, it is critical to take into account structural change and its corollary, industrial upgrading.
J. Lin
semanticscholar   +1 more source

Improved $\eta^\prime$-Meson Distribution Amplitudes from Inclusive $\Upsilon (1S) \to \eta^\prime X$ Decay

, 2003
We calculate the $\eta^\prime$-meson energy spectrum in the $\Upsilon (1S) \to \eta^\prime g g g \to \eta^\prime X$ decay in the leading-order perturbative QCD in the static-quark limit for the orthoquarkonium.Our principal result is the extraction of ...
Ali, A., Parkhomenko, A. Ya.
core   +1 more source

Exploring Systems Thinking Typologies and Paradigms

SAGE Open
Today’s agriculture, food, and natural resources (AFNR) sectors face many wicked problems like climate change. Addressing these complex problems will require people to have both social and technical knowledge.
Katrina R. Alford, Nicole L. P. Stedman, James Charles Bunch, Shirley Baker, T. Grady Roberts   +4 more
doaj   +1 more source

Effect of Staggered Distance on Dynamic Recrystallization of Magnesium Alloy Bending Products

Journal of Harbin University of Science and Technology, 2019
Traditional bending processes have many bottlenecks, such as long processing flow and difficulty in controlling bending characteristics The staggered extrusion (SE) process can realize the integration of extrusion and bending in a single pass The ...
LI Feng, WANG Yan peng, ZHANG Xi jie
doaj   +1 more source