PSIV-11 Description of a novel Calorimetric unit to determine net energy in group housed pigs

Abstract The Swine Calorimeter Unit (SCU) is being developed at the University of Illinois at Urbana-Champaign. The objective of the SCU unit is to be able to determine net energy (NE) of diets and ingredients fed on an ad-libitum basis to group-housed pigs in all phases of production. The SCU allows for calculating NE based on the indirect calorimetry procedure. There are 6 calorimetry chambers in the SCU. Each chamber is made air-tight by means of a gasketed surface, measures 1.8 × 2.1 × 2.7 m, has fully slatted floors, and a volume of 10.2 m3, with capacity to hold 4 to 10 growing-finishing pigs depending on size. There are manure screens and urine pans under the slatted floors. Each chamber is equipped with a fresh air supply system (Fantech, Lenexa, KS, and Accutrol LLC, Monroe, CT). Humidity and temperature in each chamber is controlled by a regulator unit (Parameter, Black Mountain, NC). The precision for maintenance of the temperature can be controlled with an accuracy of ± 0.1°C and relative humidity (RH) ±0.5%. These levels of precision are ensured by the use of a dew point control system. To measure the gas exchange in the chambers, the Classic Line system developed by Sable Systems International is used (Sable System International, North Las Vegas, NV). The air subsample first enters the methane analyzer, then the CO2 analyzer, and as the last step the oxygen analyzer. The gas analyzers provide readings in percentage units with high resolution (0.00001 to 0.01%) depending on gas concentrations. Those values are obtained in a determined period of time to be able to calculate total heat production from each chamber. Operation of the SCU will start in January 2019, and the initial objectives include comparisons of net energy in individually housed and group housed pigs. Figure1. Schematic of the Calorimeter chamber and its sub-systems. http://www.conferenceharvester.com/

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The design of equipment for producing accurate control of artificial aerial environments at low cost

The Journal of Agricultural Science ◽

10.1017/s0021859600020268 ◽

1959 ◽

Vol 53 (2) ◽

pp. 198-208 ◽

Cited By ~ 5

Author(s):

G. C. Evans

Keyword(s):

Cooling System ◽

Low Cost ◽

Thermal Capacity ◽

Dew Point ◽

Atmospheric Environment ◽

Air Supply ◽

Point Control ◽

Degree Of Control ◽

Time Of Year ◽

Field Experimentation

An account is given of the considerations which have been found in practice to govern the design of a small cabinet for growing plants under closely controlled conditions of atmospheric environment. Starting with questions of size, shape and material, the connexion between size of chamber and type of illumination is considered, followed by general policy on air supply. The main outlines of design having been laid down in this way, the various environmental factors to be controlled are reviewed. These include: (a) composition of the air, with particular reference to carbon dioxide; (b) light intensity. Various possible sources are reviewed, and the difficulties of imitating natural conditions of illumination are discussed, together with methods of measuring the illumination and checking for stability; (c) temperature. The degree of control needed for various purposes is considered, particularly in connexion with control of humidity, followed by systems of control, and the most advantageous arrangements for them. The cycle of operations of a control system is considered in some detail, and division of the system into a small relay-operated heater and a background heating or cooling system is advocated; (d) humidity. A similar division between background and relay-operated humidifiers is also advisable, and methods of achieving this are outlined. Dew-point control is shown to be most suitable for the background humidity, while a hot wick of low thermal capacity suffices for the relay-operated device. Finally, the principal uses of such cabinets are dealt with: (a) as adjuncts to field experimentation; (b) for work on plant pathology; (c) for producing standard plant material at any time of year; and rough estimates of running costs are given.

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Five Decades of Research Experience in Speech Anatomy and Physiology

Perspectives of the ASHA Special Interest Groups ◽

10.1044/persp1.sig5.4 ◽

2016 ◽

Vol 1 (5) ◽

pp. 4-12

Author(s):

David P. Kuehn

Keyword(s):

Ohio State University ◽

State University ◽

Research Experience ◽

University Of Iowa ◽

University Of Illinois ◽

Anatomy And Physiology ◽

The Ohio State University ◽

Speech Science ◽

The University ◽

East Carolina University

This report highlights some of the major developments in the area of speech anatomy and physiology drawing from the author's own research experience during his years at the University of Iowa and the University of Illinois. He has benefited greatly from mentors including Professors James Curtis, Kenneth Moll, and Hughlett Morris at the University of Iowa and Professor Paul Lauterbur at the University of Illinois. Many colleagues have contributed to the author's work, especially Professors Jerald Moon at the University of Iowa, Bradley Sutton at the University of Illinois, Jamie Perry at East Carolina University, and Youkyung Bae at the Ohio State University. The strength of these researchers and their students bodes well for future advances in knowledge in this important area of speech science.

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University Geographies and Folk Music Landscapes

Journal of Musicology ◽

10.1525/jm.2016.33.1.92 ◽

2016 ◽

Vol 33 (1) ◽

pp. 92-116 ◽

Cited By ~ 1

Author(s):

David K. Blake

Keyword(s):

Mass Culture ◽

Folk Music ◽

Traditional Music ◽

Rural Landscape ◽

Power Structures ◽

Distant Object ◽

University Of Illinois ◽

Liberal Politics ◽

Cultural Form ◽

The University

By examining folk music activities connecting students and local musicians during the early 1960s at the University of Illinois at Urbana-Champaign, this article demonstrates how university geographies and musical landscapes influence musical activities in college towns. The geography of the University of Illinois, a rural Midwestern location with a mostly urban, middle-class student population, created an unusual combination of privileged students in a primarily working-class area. This combination of geography and landscape framed interactions between students and local musicians in Urbana-Champaign, stimulating and complicating the traversal of sociocultural differences through traditional music. Members of the University of Illinois Campus Folksong Club considered traditional music as a high cultural form distinct from mass-culture artists, aligning their interests with then-dominant scholarly approaches in folklore and film studies departments. Yet students also interrogated the impropriety of folksong presentation on campus, and community folksingers projected their own discomfort with students’ liberal politics. In hosting concerts by rural musicians such as Frank Proffitt and producing a record of local Urbana-Champaign folksingers called Green Fields of Illinois (1963), the folksong club attempted to suture these differences by highlighting the aesthetic, domestic, historical, and educational aspects of local folk music, while avoiding contemporary socioeconomic, commercial, and political concerns. This depoliticized conception of folk music bridged students and local folksingers, but also represented local music via a nineteenth-century rural landscape that converted contemporaneous lived practice into a temporally distant object of aesthetic study. Students’ study of folk music thus reinforced the power structures of university culture—but engaging local folksinging as an educational subject remained for them the most ethical solution for questioning, and potentially traversing, larger problems of inequality and difference.

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The Early Years of the Jewish Presence at the University of Illinois

Religion and American Culture A Journal of Interpretation ◽

10.1525/rac.1992.2.2.03a00040 ◽

1992 ◽

Vol 2 (2) ◽

pp. 215-245

Author(s):

Winton U. Solberg

Keyword(s):

Higher Education ◽

The United States ◽

Early Years ◽

Late Nineteenth Century ◽

Characteristic Form ◽

University Of Illinois ◽

American Higher Education ◽

Jewish Students ◽

The University ◽

The Church

For over two centuries, the College was the characteristic form of higher education in the United States, and the College was closely allied to the church in a predominantly Protestant land. The university became the characteristic form of American higher education starting in the late nineteenth Century, and universities long continued to reflect the nation's Protestant culture. By about 1900, however, Catholics and Jews began to enter universities in increasing numbers. What was the experience of Jewish students in these institutions, and how did authorities respond to their appearance? These questions will be addressed in this article by focusing on the Jewish presence at the University of Illinois in the early twentieth Century. Religion, like a red thread, is interwoven throughout the entire fabric of this story.

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