摘要:

A steady‐state apparatus has been developed for measuring the thermal conductivity of cast materials. The design has employed a novel thermal symmetry arrangement which can permit total electrical isolation of the test material from its surroundings.

ISSN:0034-6748    

DOI:10.1063/1.1136331

出版商:AIP    

年代:1980

数据来源: AIP

摘要:

A simple, compact and robust goniometer is described which is suitable for aligning and cutting metal single crystals with a slow speed saw.

ISSN:0034-6748    

DOI:10.1063/1.1136344

出版商:AIP    

年代:1980

数据来源: AIP

摘要:

A design is provided for a 16 channel, multiplexed, digital to analog converter. Output channels are unipolar, zero to ten volts, with ten bit accuracy. Computer bus interfacing by means of a commercially available parallel interface results in a relatively low cost, easily assembled instrument to which digital to analog channels may be added as the need arises.

ISSN:0034-6748    

DOI:10.1063/1.1136345

出版商:AIP    

年代:1980

数据来源: AIP

摘要:

The principal electrode problems associated with laser Doppler electrophoresis in high salt conditions and at high current densities (pH drift, colloidal particle ejection, and gas bubbling) have been solved through the use of hybrid electrodes that are platinized Ag/AgCl or by the use of platinized Ag. For salt conditions well below physiological saline an agarose gel overcoating on either of these electrode types has been useful for containing the increased tendency for the ejection of colloidal particles.

ISSN:0034-6748    

DOI:10.1063/1.1136346

出版商:AIP    

年代:1980

数据来源: AIP

摘要:

A new method for determination and storage of the space potential in a plasma is described. The analog storage device employed in the method is automatic and suitable for recording of the variable space potential in a fast changing plasma.

ISSN:0034-6748    

DOI:10.1063/1.1136347

出版商:AIP    

年代:1980

数据来源: AIP

摘要:

Carbon resistor brand identification and availability problems are discussed.

ISSN:0034-6748    

DOI:10.1063/1.1136348

出版商:AIP    

年代:1980

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1136420

出版商:AIP    

年代:1980

数据来源: AIP