A ballistic bomb calorimeter
نویسندگان
چکیده
منابع مشابه
A ballistic bomb calorimeter.
The classical methods for determining the calorie value of foodstuffs are both long and tedious, and a number of alternative methods have been suggested for assessing the energy value of foods based on an analysis of the foodstuff and the use of factors with each of the chemical components to give energy content. None of these methods is really satisfactory, and when a high level of accuracy is...
متن کاملRat carcass calorie contents as estimated from fat and nitrogen analyses, compared with ballistic bomb calorimeter data.
3.94 ± 1.08 0.63 0.5-0.6 3.53 ± 1.34 2.92 ± 1.34 0.21 0.8-0.9 3.05 ± 1.55 2.46 ± 1.40 0.54 0.5-0.6 2.83 ± 1.82 3.11 ± 1.57 0.08 0.9-1.0 urine. (The urines collected were divided into the periods as part of a study, to be published elsewhere, on estriol variations with time.) Table 3 gives the results of a statistical analysis comparing the results. The I test for small samples (4) was used. The...
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For both respiration and combustion, the energy loss difference between glucose and fat oxidation often is referenced to the efficiency of the fuel. Yet, the addition of anaerobic metabolism with ATP resynthesis to complete respiratory glucose oxidation further contributes to energy loss in the form of entropy changes that are not measured or quantified by calorimetry; combustion and respirator...
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A bomb calorimeter is an apparatus used for measuring the performance of coal in term of heat of combustion. Recent awareness has been created regarding uncertainty of measurement, due to mainly two reasons. Laboratory accreditation, which has steadily been on the rise, which requires a estimation of uncertainty of measurement particularly in the field of calibration. Second, increased maturity...
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The paper describes a new type of calorimeter that can be quickly put into operation for determining absorbed dose at a point in polystyrene. It also describes a unique method of decreasing drifts in electrical signals caused by temperature gradients. Two calibrated thermistors were placed close together between sandwiched polystyrene discs that were immersed in water. The assembly was irradiat...
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ژورنال
عنوان ژورنال: British Journal of Nutrition
سال: 1959
ISSN: 0007-1145,1475-2662
DOI: 10.1079/bjn19590064