A Chromium Catalyst for the Polymerization of Ethylene as a Homogeneous Model for the Phillips Catalyst

2005 ◽  
Vol 127 (4) ◽  
pp. 1082-1083 ◽  
Author(s):  
Leonard A. MacAdams ◽  
Gerald P. Buffone ◽  
Christopher D. Incarvito ◽  
Arnold L. Rheingold ◽  
Klaus H. Theopold
Keyword(s):  
Homogeneous Model ◽  
Phillips Catalyst ◽  
Chromium Catalyst

1,3,5-Triazacyclohexane Complexes of Chromium as Homogeneous Model Systems for the Phillips Catalyst

2003 ◽  
pp. 88-100 ◽  
Author(s):  
Randolf D. Köhn ◽  
D. Smith ◽  
D. Lilge ◽  
S. Mihan ◽  
F. Molnar ◽  
...  
Keyword(s):  
Homogeneous Model ◽  
Model Systems ◽  
Phillips Catalyst

1,3,5-Triazacyclohexane Complexes of Chromium as Homogeneous Model Systems for the Phillips Catalyst

2001 ◽  
pp. 147-155 ◽  
Author(s):  
Randolf D. Köhn ◽  
Guido Seifert ◽  
Gabriele Kociok-Köhn ◽  
Shahram Mihan ◽  
Dieter Lilge ◽  
...  
Keyword(s):  
Homogeneous Model ◽  
Model Systems ◽  
Phillips Catalyst

Triazacyclohexane complexes of chromium as highly active homogeneous model systems for the Phillips catalyst

2000 ◽  
pp. 1927-1928 ◽  
Author(s):  
Randolf D. Köhn ◽  
Matthias Haufe ◽  
Shahram Mihan ◽  
Dieter Lilge
Keyword(s):  
Homogeneous Model ◽  
Model Systems ◽  
Phillips Catalyst ◽  
Highly Active

Karakteristik aliran dua fase pada saluran ekspansi tiba-tiba

2018 ◽  
Vol 11 (1) ◽  
pp. 7
Author(s):  
Latif Ngudi Wibawanto ◽  
Budi Santoso ◽  
Wibawa Endra Juwana
Keyword(s):  
Standard Deviation ◽  
Flow Pattern ◽  
Flow Characteristic ◽  
Homogeneous Model ◽  
Flow Equation ◽  
Pressure Recovery ◽  
Sudden Expansion ◽  
Air Velocity ◽  
Model Flow ◽  
Two Phases

This research was conducted to find out the flow characteristic of two phases through the channel with sudden expansion in the form of change of flow pattern and pressure recovery. The test was carried out with variation of superficial velocity of water 0.2-1.3 m / s and superficial air velocity of 0.2-1.9 m / s resulting in pattern of three flow patterns ie bubble, plug, and slug. The expansion channel resulted in some changes to the flow pattern that originally plugs in the upstream channel into bubble in the downstream channel and the slug becomes plug. Pressure recovery experimental results compared with the homogeneous model flow equation and Wadle correlation, both correlations have predictions with standard deviation values of 0.32 and 0.43.

A characterization of the 0-basis homogeneous bounding degrees

2010 ◽  
Vol 75 (3) ◽  
pp. 971-995
Author(s):  
Karen Lange
Keyword(s):  
Homogeneous Model ◽  
Countable Model

AbstractWe say a countable model has a 0-basis if the types realized in are uniformly computable. We say has a (d-)decidable copy if there exists a model ≅ such that the elementary diagram of is (d-)computable. Goncharov, Millar, and Peretyat'kin independently showed there exists a homogeneous model with a 0-basis but no decidable copy. We extend this result here. Let d ≤ 0′ be any low2 degree. We show that there exists a homogeneous model with a 0-basis but no d-decidable copy. A degree d is 0-basis homogeneous bounding if any homogenous with a 0-basis has a d-decidable copy. In previous work, we showed that the non low2 Δ20 degrees are 0-basis homogeneous bounding. The result of this paper shows that this is an exact characterization of the 0-basis homogeneous bounding Δ20 degrees.

scholarly journals Achieving polydispersive HDPE by N,N,N-Co precatalysts appended with N-2,4-bis(di(4-methoxyphenyl)methyl)-6-methylphenyl

RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43400-43411
Author(s):  
Shi-Fang Yuan ◽  
Zhe Fan ◽  
Yi Yan ◽  
Yanping Ma ◽  
Mingyang Han ◽  
...  
Keyword(s):  
Practical Application ◽  
Molecular Weights ◽  
Phillips Catalyst

Introducing a practical application of N,N,N-Co precatalysts for highly linear polyethylenes with wide polydispersity and high molecular weights, targeting HDPE using Phillips catalyst.

Preparation of a Resin-Based Chromium Catalyst for Effecting [6π + 2π] Cycloaddition Reactions

2000 ◽  
Vol 2 (24) ◽  
pp. 3917-3919 ◽  
Author(s):  
James H. Rigby ◽  
Mikhail A. Kondratenko ◽  
Christian Fiedler
Keyword(s):  
Cycloaddition Reactions ◽  
Chromium Catalyst

An homogeneous model for adiabatic capillary tubes

1998 ◽  
Vol 18 (3-4) ◽  
pp. 207-219 ◽  
Author(s):  
P.K. Bansal ◽  
A.S. Rupasinghe
Keyword(s):  
Homogeneous Model ◽  
Capillary Tubes
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