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| 1. |
Development of Breathing Rat-Lung Models for Particulate Deposition Studies |
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Instrumentation Science & Technology,
Volume 12,
Issue 3,
1982,
Page 135-149
Amit L. Patra,
Frederick J. Miller,
Judith A. Graham,
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摘要:
Techniques have been developed for casting both solid and hollow lung models from rat-lung specimens. To make a solid model, an air line at a positive pressure of 25 cm of water was connected to the trachea to air-dry lungs which had been removed surgically from the animal. Using the lost wax technique, a hollow cast of the airways and the nasopharynx was made. A mechanical breathing system, capable of simulating different breathing patterns, was developed.
ISSN:1073-9149
DOI:10.1080/10739148208543553
出版商:Taylor & Francis Group
年代:1982
数据来源: Taylor
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| 2. |
A Low Cost Lock-In Amplifier for Ac Polarography |
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Instrumentation Science & Technology,
Volume 12,
Issue 3,
1982,
Page 151-169
Alan P. Uthman,
W. Stephen Woodward,
Charles N. Reilley,
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PDF (537KB)
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摘要:
The electronics, construction and use of a low cost lock-in amplifier suitable for AC polarography are described. The device operates from 10 Hz to 10 kHz in 1,2,5 multiples of frequency. Components for the unit cost about $150.
ISSN:1073-9149
DOI:10.1080/10739148208543554
出版商:Taylor & Francis Group
年代:1982
数据来源: Taylor
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| 3. |
A Simple Inexpensive 4½ Digit Microvolt Meter for Potentiometric Titrations |
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Instrumentation Science & Technology,
Volume 12,
Issue 3,
1982,
Page 171-174
Steven P. Brimmer,
Thomas H. Ridgway,
Njegomir Radic,
Harry B. Mark,
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PDF (149KB)
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摘要:
The design and construction of a stable 4½ digit microvolt meter which uses inexpensive and readily available integrated circuits and components is described. The input impedance is such that the meter can be used with glass electrodes and other high resistance ion selective electrodes. Precautions required for satisfactory operations are described.
ISSN:1073-9149
DOI:10.1080/10739148208543555
出版商:Taylor & Francis Group
年代:1982
数据来源: Taylor
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| 4. |
Versatile Microprocessor Based Interface for Electron Spin Resonance (ESR) Spectrometer |
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Instrumentation Science & Technology,
Volume 12,
Issue 3,
1982,
Page 175-184
R.N. Bagchi,
T.L. Henderson,
F.L. Walter,
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PDF (236KB)
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摘要:
A Motorola M6800 based interface to an ESR spectrometer is described. The interface extends the capability of a conventional ESR spectrometer to enable it to perform a variety of additional tasks, e.g. signal averaging, transient recording, etc. at a minimal cost.
ISSN:1073-9149
DOI:10.1080/10739148208543556
出版商:Taylor & Francis Group
年代:1982
数据来源: Taylor
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| 5. |
High Speed Parallel Interface for a PAR Multichannel Detector Controller and a HP9845T Minicomputer |
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Instrumentation Science & Technology,
Volume 12,
Issue 3,
1982,
Page 185-199
M. Wong,
P. Oldham,
C.N. Ho,
I.M. Warner,
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PDF (326KB)
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摘要:
The design and construction of a high speed parallel interface between a Hewlett-Packard 9845T minicomputer and an E G&G Princeton Applied Research Corporation (PAR) model 1216 multichannel detector controller is described. The hardware as well as the software necessary to implement this interface is discussed.
ISSN:1073-9149
DOI:10.1080/10739148208543557
出版商:Taylor & Francis Group
年代:1982
数据来源: Taylor
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