Results 111 to 120 of about 1,428,554 (265)

Processing and properties of large-sized ceramic slabs

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2010
Large-sized ceramic slabs – with dimensions up to 360x120 cm<sup>2</sup> and thickness down to 2 mm – are manufactured through an innovative ceramic process, starting from porcelain stoneware formulations and involving wet ball milling, spray
Fossa, L.   +6 more
doaj  

Which cities' paper output and citation impact are above expectation in information science? Some improvements of our previous mapping approaches [PDF]

open access: yesarXiv, 2011
Bornmann and Leydesdorff (in press) proposed methods based on Web-of-Science data to identify field-specific excellence in cities where highly-cited papers were published more frequently than can be expected. Top performers in output are cities in which authors are located who publish a number of highly-cited papers that is statistically significantly ...
arxiv  

Desarrollo de moldes de prensado con recubrimientos antidesgaste

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2005
Objective of the present paper has been the development of a new pressing dye concept in the field of ceramic tiles. The use of metal-ceramic composite coatings has allowed multiplying the dies life time for a factor between 2 and 3 (1.000.000 – 1.500 ...
Poyatos, A.   +3 more
doaj  

Apparatus and method for measuring the Seebeck coefficient and resistivity of materials [PDF]

open access: yes, 1973
An apparatus for measuring the thermoelectric properties of materials under high pressure is described that includes a pair of force transmitting assemblies constructed of thermally and electrically conductive material positioned between the ram and ...
Hadek, V.
core   +1 more source

Data-driven Approach to Measuring the Level of Press Freedom Using Media Attention Diversity from Unfiltered News [PDF]

open access: yesarXiv, 2017
Published by Reporters Without Borders every year, the Press Freedom Index (PFI) reflects the fear and tension in the newsroom pushed by the government and private sectors. While the PFI is invaluable in monitoring media environments worldwide, the current survey-based method has inherent limitations to updates in terms of cost and time.
arxiv  

The State of Social Justice Philanthropy 2011 [PDF]

open access: yes, 2013
According to "The State of Social Justice Philanthropy 2011" giving around policy and community engagement to address pressing social problems dipped to 12 percent, compared to the 15 percent average in 2008 ...
Kevin Laskowski, Niki Jagpal
core  

Calorimetric evidence for enhancement of homogeneity in high performance Sr1-xKxFe2As2 superconductors [PDF]

open access: yesScripta Materialia 138 (2017) 114-119, 2017
We comparatively studied the critical current density, magnetization and specific heat of the rolled and the hot-pressed Sr1-xKxFe2As2 tapes. The Schottky anomaly that is obvious in the specific heat of the rolled tape disappears in the hot-pressed tape.
arxiv  

Some aspects of electro-chemical grid-marking [PDF]

open access: yes, 1969
Introduction The value of fine grids, electromarked (1) on to metal sheets before pressing, so that the type and magnitude of the strain developed in the critical region of the pressing can be assessed, is undisputed. Keeler (2), Meyer and Newby (3),
Drinkwater, Ian C., Pearce, Roger
core  

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