Media Cold Warriors: How the Pedro Panes Reinforced Cold War Policies toward Cuba

Latin American Studie

Public Relations of Academic Libraries

published or submitted for publicatio

Effect of Polymer Coatings as Intermediate Binders on Sintering of Ceramic Parts

It has been proposed that a thin polymer layer applied to the surfaces of finely divided ceramic powders would serve as a suitable intermediate binder for Selective Layer Sintering of ceramic pans. In this study, the effects of completeness and fraction of coa nd particle size distribution on sintering rates and strengths of coated ridized glass are examined. The effect of the coating as a binder during Selective Layer Sintering as well as the binder's burnout capability during post processing steps are also investigated.Mechanical Engineerin

Post-Processing of Selective Laser Sintered Polycarbonate Parts

St\ldies were conducted·to det~rmine the effect of press\lre onpost-prpeessingofpolycarbonate coupons. No significant differences betweencou.pons processed at atmospheric •cQndidons.. andcouponsprpeessedin.vacuum were •observed. However, anisotropic shrinkage .was observedin.thez-directionnormal to thesintering plane. Thisphenomenawasfurtl1erinvestigated usingsYIllmetrical polycarbonatecubespr9(iuced by Selective LaserSintering using yariedlas~rpoweryariedpowderlayer thickness, and varied powder bed temperaturesMechanical Engineerin

Microencapsulation of Finely Divided Ceramic Powders

Polymer coated alumina particles have been prepared by spray drying alumina powder with a polymer emulsion. Powders containing a maximum of 50% wt. were obtained. The coated particles were compared to mixtures of alumina and polymer. Oven sintering tests show the coated material to compact more than the mixed and pure polymer materials. Strong, well defined parts with layer thicknesses of 0.002" were produced from both coated and mixed materials by the Selective Layer Sintering process.Mechanical Engineerin

Value of Quaker Religious Thought to Me and to Friends

Excerpt: Quantitatively speaking, if it were not for Quaker Religious Thought, my credentials as a published scholar would be slim indeed. By the time I reached the age of 65, they would have consisted of one published lecture (the 1968 Shrewsbury Lecture) and one book review (in the Anglican Theological Review. Everything else — articles, comments, book reviews, editorials — had been published in QRT

Man as a resource on the moon

Human performance at operational lunar bas