Vacuum Sublimation as a Method of Fractionation for Pitch
نویسندگان
چکیده
منابع مشابه
The Sublimation of Ice in Vacuum
A n a c c o u n t is g iven of e x p e r i m e n t s on t h e r a t e of s u b l i m a t i o n of ice in v a c u u m a n d in t he p r e sence of a sma l l a m o u n t of air. T h e r e su l t s s h o w t h a t t h e g a s k ine t i c a c c o m o d a t i o n coef f ic ien t of t h e ice b e t w e e n 4 0 a n d 6 0 ° C lies n e a r u n i t y . Also i t a p p e a r s t h a t t h e m a x i m u m s...
متن کاملassessment of the effect of honey as a topical therapy for intra oral wound healing in rat.
چکیده ندارد.
15 صفحه اولFractionation and Molecular Analysis of a Vacuum Residue Asphaltenes
/ Petroleum asphaltenes are defined as the n-pentane or n-heptane insoluble but toluene soluble fraction of crude oils or petroleum residua. This operational definition is a consequence of the extremely complex structure of asphaltenes which consist of thousands of compounds containing highly aromatic cores, long chain aliphatic groups, heteroatoms (sulfur, nitrogen, and oxygen) as well as trac...
متن کاملA spectral-temporal method for pitch tracking
In this paper, a new spectral/temporal method is described for robust pitch tracking for both high quality and telephone speech. A previous version of this algorithm was presented as YAAPT (Kasi and Zahorian, 2002) [10]. In the current paper, a novel method is presented for spectral pitch tracking, using nonlinear processing to partially restore the potentially missing fundamental frequency. A ...
متن کاملinvestigating the feasibility of a proposed model for geometric design of deployable arch structures
deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: TANSO
سال: 1974
ISSN: 1884-5495,0371-5345
DOI: 10.7209/tanso.1974.77