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Beitr. Tabakforsch. Int., 1992, 15-2, p. 65-74., ISSN.0173-783X

Relative positions of the thermal convection column and smoke plume generated from a smoldering cigarette

MCRAE D.D.; JENKINS R.W. Jr.

Philip Morris USA, Research Center, Richmond, VA, USA

The relative positions of the thermal convection column and the smoke plume from a variety of smoldering cigarettes were measured using a combination of schlieren and visual optical systems. The schlieren technique is an optical method used to observe ...
CORESTA Meeting, Smoke/Technology, Budapest, 1993, ST 09

Determination of amino acids in tobacco by HPLC/fluorescence with precolumn derivatization

YANG S.S.

Philip Morris USA, Richmond, VA, USA

Precolumn derivatization has been of interest in amino acids determination for years, especially in the cases where complex matrix presents. In this study, an HPLC method is described for the analysis of amino acids in tobacco with a precolumn ...
CORESTA Meeting, Smoke/Technology, Budapest, 1993, ST 16

Puff by puff, intrapuff, and interpuff delivery of selected inorganics to smoke from 2R1 cigarettes

JENKINS R.W.

Philip Morris USA, Richmond, VA, USA

In previous publications, the transfer of inorganic elements (Na, K, Cl and Br) to whole smoke has been reported (Jenkins, et al., Trans. Am. Nuclear Soc. 18, 1971; J. Aerosol Sci. 13, 1982; Beit. zur Tabak, Int. 13, 1985; and Tob. Sci. 34, 1990). In this ...
CORESTA Meeting, Smoke/Technology, Budapest, 1993, ST 17

Development of experimental methods for study of gas phase charge transfer processes

JENSEN N.J.

Philip Morris USA, Richmond, VA, USA

Gas phase reactions are of fundamental interest in smoke chemistry. Many types of reactions and decompositions have been characterized. However, one type of reaction, the charge transfer process, is very difficult to characterize by conventional means. ...
CORESTA Meeting, Smoke/Technology, Budapest, 1993, ST 26

The kinetics of moisture loss from cigarette packs

BANYASZ J.L.

Philip Morris USA, Richmond, VA, USA

Shelf life is an important aspect of product quality. Extensive accelerated aging testing is carried out to ensure that cigarettes maintain their moisture levels within acceptable limits for as long as possible. Such testing, however, does not in general ...
CORESTA Meeting, Smoke/Technology, Budapest, 1993, ST 33

Design and application of an upward plug flow ventilation system

BURNLEY H.G.

Philip Morris USA, Richmond, VA, USA

By using an innovative combination of existing HVAC technologies, a displacement ventilation system has been developed and field tested. With plug flow ventilation, measurements in a simulation room and commercial installations have revealed improvements ...
Beitr. Tabakforsch. Int., 1989, 14-5, p. 289-6., ISSN.0173-783X

Cigarette smoke transfer studies. Transfer of added (18-14C) octatriacontane

BASS R.T.; BROWN L.E.; HASSAM S.B.

Philip Morris USA, Research Center, Richmond, VA, USA
Beitr. Tabakforsch. Int., 1989, 14-5, p. 297-312., ISSN.0173-783X

Changes in the cellular concentrations of elements in tobacco leaf tissues during growth and senescence

ECHLIN P.

Philip Morris USA, Research Center, Richmond, VA, USA

Quantitative X-ray microanalysis for nine elements has been carried out on frozen, fully hydrated fracture faces of upper and lower epidermis, palisade and spongy mesophyll cells in leaf tissue of Nicotiana tabacum L. cv. Coker 319 taken from plants at ...
Beitr. Tabakforsch. Int., 1990, 14-6, p. 341-52., ISSN.0173-783X

Practical modeling of filter filtration efficiency

KAO J.

Philip Morris USA, Research Center, Richmond, VA, USA

A simple and general mathematical model has been developed to calculate filter-filtration efficiency, which is based on practical design parameters: pressure drop, filter dimension, flow rate, and filament denier. This model has been verified by examining ...
Bull. Spec. CORESTA Symposium, Kallithea, 1990, p. 185, PP03, ISSN.0525-6240

Survey of pests and diseases of tobacco and chemicals used. Part. 2. Main chemicals used on tobacco

DELON R.; HILL D.; PAPENFUS H.; TANCOGNE J.

SEITA, Institut du Tabac France - Philip Morris, USA - Rothmans Int., UK

This 2n part of the survey made in 1987, summarize the informations collected on the main pesticides used on tobacco in 50 tobacco growing countries, their frequency of use, field of application, the pest and diseases controlled, and also the maximum ...

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