Zobrazeno 1 - 10
of 76
pro vyhledávání: '"A.S. Glass"'
Publikováno v:
Control Engineering Practice. 4:105-116
A qualitative approach for detecting faults or sub-optimal operation in a class of heating, ventilation and air-conditioning systems is presented. In particular, qualitative models are used to describe the steady-state operation of a controlled centr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7bdef5f8e3cd833274cebf2f8166603
https://doi.org/10.1016/0967-0661(95)00213-9
https://doi.org/10.1016/0967-0661(95)00213-9
Publikováno v:
IEEE Control Systems. 15:11-22
The feasibility of a qualitative approach for detecting faults in an air-conditioning system is considered. The system considered is a multi-zone variable air volume air-handling unit, and the faults investigated include types which result in deterio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df202e49c2c0f9970e4f53ab9088d1cd
https://doi.org/10.1109/37.408465
https://doi.org/10.1109/37.408465
Coals surfaces were studied using static surface adsorption measurements, low angle x-ray scattering (LAXS), inverse gas chromatography (IGC) and a new {sup 13}C NMR relaxation technique. A comparison of surface areas determined by hydrocarbon gas ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d474908446198f226732bb7aff996858
https://doi.org/10.2172/49114
https://doi.org/10.2172/49114
We have reported the determination of the average micropore diameter of an Argonne Illinois No. 6 coal (77% C, daf) and a standard 15 A diameter Spherocarb sample by {sup 129}Xe NMR spectroscopy. We have successfully applied this technique to determi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e18b18bb46eb4484ec0d6cb5d3a80f38
https://doi.org/10.2172/10174185
https://doi.org/10.2172/10174185
We propose that most pores in coals are closed. They cannot be reached by diffusion through a pore network but can only be reached by diffusion through solid coal. Co{sub 2} gives accurate total surface areas because it dissolves in and rapidly diffu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e4e050ad0fb158a21066d76b1b69b7c
https://doi.org/10.2172/10172809
https://doi.org/10.2172/10172809
Our work this month has been determining the effect of added surface dysprosium(III) ions on the NMR spectra of coal. We have also been examining the effect of this relaxation agent on our model system, an aryl sulfonate silica gel. To the best of ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e96d5013af49a12ab5980a432981741
https://doi.org/10.2172/10172814
https://doi.org/10.2172/10172814
Review of previous use of Gas-Solid Chromatography to the determine thermodynamics of coal adsorption revealed several problems with data acquisition, as discussed previously (quarterly report 6, January 1, 1991 to March 31, 1991). In addition, in pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5de06759022b75ffff8867ef317cd51
https://doi.org/10.2172/10174191
https://doi.org/10.2172/10174191
Review of previous use of Gas-Solid Chromatography to the determine thermodynamics of coal adsorption revealed several problems with data acquisition, as discussed previously (quarterly report 6, January 1, 1991 to March 31, 1991). In addition, in pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::952cb9e125755d3b4ddaa8fedf816ced
https://doi.org/10.2172/7273051
https://doi.org/10.2172/7273051