Last edited by Gardalkis
Wednesday, August 5, 2020 | History

2 edition of respiration calorimeter found in the catalog.

respiration calorimeter

C.F Langworthy

respiration calorimeter

partly automatic, for the study of metabolic activity of small magnitude.

by C.F Langworthy

  • 286 Want to read
  • 8 Currently reading

Published in [n.p.] .
Written in English


The Physical Object
Pagination703-720 p.
Number of Pages720
ID Numbers
Open LibraryOL15410558M

Details are given of a comparatively simple respiration chamber suitable for direct and indirect calorimetry in infants. The moisture output is determined by difference of wet and dry bulb thermometer readings in the inlet and outlet pipes and the volume of the cir culating air by means of a rotameter. The calorimeter chamber is surrounded by a series of tubes through which the ingoing air must. the respiration calorimeter have been reported. For many years the policy of cooperation with agricultural colleges and experiment stations and other suitable institutions was followed in conducting the Department nutrition investigations, and under this plan the respiration calorimeter work was carried on in the chemical.

National Agricultural Library Baltimore Avenue Beltsville, MD The chair calorimeter is of a different shape, although primarily of the same con-struction. In the chair calorimeter, the subject sits in a comfortable armchair, the walls of the chamber being of such a form as to give a minimum amount of air space about the body. The total volume of air space in the bed calorimeter is liters.

Wilbur Olin Atwater (May 3, — Septem ) was an American chemist known for his studies of human nutrition and metabolism. He is credited with developing the Atwater system, laying the groundwork, in the 19th century, for the science of nutrition in the United States and inspiring modern Olympic nutrition. these requirements, the calorimeter must measure as accurately as possible the small quantities of heat produced by samples of the fruit or vegetable. It. is evident, therefore, that the simpl(>l' method of calculating the heat from respiration data is much to be' pn'ferred if it can be shown. to. give correct or fairly COITect results.


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Respiration calorimeter by C.F Langworthy Download PDF EPUB FB2

THE RESPIRATION CALORIMETER. By W. ATWATER, Chiefs and F. BENEDICT, Physiological Chemist, Nutrition InvestigationSj Office of Experiment Stations. STUDIES OF THE DEMANDS OF THE HUMAN BODY. In considering the demands of the body for nourishment and the purposes which foods serve in the body, it was natural that experi.

A Respiration Calorimeter with Appliances for the Direct Determination of Oxygen Wilbur Olin Atwater, Francis Gano Benedict Carnegie Institution of Washington, - Animal heat respiration calorimeter book pages.

The Atwater-Rosa Respiration Calorimeter A respiration calorimeter is an apparatus designed for the measurement of the gaseous exchange between a living organism and the atmosphere which surrounds it, and the simultaneous measurement of the quantity of heat produced by that organism.

Buy Report of Preliminary Investigations on the Metabolism of Nitrogen and Carbon in the Human Organism: With a Respiration Calorimeter of Special Construction (Classic Reprint) on FREE SHIPPING on qualified orders. AC calorimetry is a method of measuring the heat capacity in which an oscillatory heat flux is applied to a sample and its heat capacity is determined from the resultant temperature oscillations.

The simplest model for an ac calorimeter is shown schematically in Figure (a). The heat capacity at constant pressure C p (shown in Figure (a) as C) of calorimeter + contents is loosely.

Respiration calorimeters for studying the respiratory exchange and energy transformations of man, Related Titles. Series: Carnegie Institution of Washington publication. Benedict, Francis Gano, Carpenter, Thorne Martin, Type. Book. The respiration calorimeter laboratory is so large, the number of assistants in the room at any time is (relatively speaking) so small, seldom exceeding ten, and the humidity and temperature are respiration calorimeter book very thoroughly controlled, that as yet it has been entirely unnecessary to utilize even the relatively small amount of indirect ventilation.

Fig. - Schematic diagram of the Atwater-Rosa-Benedict respiration calorimeter. The Gas Analysis. The inner lining of the apparatus presents an air-tight copper box having a capacity of liters. One end of the box, through which the patient lying on the bed is admitted, may be closed with a glass plate by means of wax.

A respiration calorimeter with appliances for the direct determination of oxygen, By. Atwater, W. (Wilbur Olin), Benedict, Francis Gano, If you are generating a PDF of a journal article or book chapter, please feel free to enter the title and author information. The information you enter here will be stored in the.

Audio Books & Poetry Community Audio Computers, Technology and Science Music, Arts & Culture News & Public Affairs Non-English Audio Spirituality & Religion. Librivox Free Audiobook. Full text of "A Respiration Calorimeter with Appliances for the Direct Determination of Oxygen". Respiration calorimetry reached a pinnacle with the construction of the Atwater Rosa respiration calorimeter (–).

The apparatus was constructed on the model of the Regnault and Reiset device (closed-circuit measuring carbon dioxide and oxygen with recirculation of the air plus the measurement of body heat).Cited by:   Forgotten Books publishes hundreds of thousands of rare and classic books.

Find more at This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy.

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Rubner, inbuilt a direct calorimeter that measured the heat given by animals based on the temperature change in a surrounding water medium.

The animal chamber was also connected to a Pettenkofer respiration chamber for respiratory analysis. Rubner demonstrated complete agreement between the two methods. Five years later, the Atwater and. A calorimeter for human subjects is described. Subject browse uses CABICODES which are CABI’s own classification codes for broad subjects that would be difficult to describe with keywords alone.

Respiration calorimeter definition is - an apparatus for measuring the gaseous exchange between a man or lower animal and the surrounding atmosphere with particular reference to the oxygen consumed and carbon dioxide eliminated and simultaneously the quantity of energy given out in the form of heat and work in order to determine the relation of these factors to the food and drink consumed and.

A respiration calorimeter with appliances for the direct determination of oxygen by Atwater, W. (Wilbur Olin), ; Benedict, Francis Gano, OCLC Number: Notes: Errata slip tipped in. Description: 94 pages, viii leaves of plates: illustrations ; 23 cm.

Contents: Introduction. 7 --Metabolism of matter and energy. 9 --Apparatus and general plan of the experiments. 12 --Description of the apparatus: Arrangements for preventing a gain or loss of heat through the walls of the calorimeter --Apparatus and method.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Series Title: Carnegie Institution of Washington publication no. Language: English: LoC Class: QP: Science: Physiology: Subject: Physiological apparatus Subject: Respiration Subject: Animal heat Subject: Metabolism Category: Text: EBook-No.

To date, most respiration chambers have a fixed size, limiting their use for different species, sizes and number of subjects, thus hampering studying the short term dynamics of Q. This chapter presents various approaches to the design, construction and testing of respiration chambers, adjustable to the metabolic mass inside.

Front view of respiration calorimeter. Air pump, water meter, observers table and entrance to the respiration chamber are shown in detail. The large balance at the left of the picture is used for weighing the caron-dioxide and water absorbers and the oxygen cylinder.

Judd Hall, Wesleyan University, Middletown, Connecticut.Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man by Thorne M.

(Thorne Martin) Carpenter. Free audio book that you can download in mp3, iPod and iTunes format for your portable audio player. Audio previews, convenient categories and excellent search functionality make your best source for free audio books.Indirect Calorimetry 11 RQ vs RER The RQ and RER are the same measurement, yet as the components of the measure are obtained differently (cell respiration vs exhaled air from the lung), under certain circumstances the values can differ.

The maximal range of RQ is from to The range of RER may vary from QUESTIONS 1. Why can.