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• Welcome to the History of the Guarded-Hot-Plate Apparatus at NIST .
• The following photographs will give you a perspective on the development of the Guarded-Hot-Plate Apparatus at NIST. ...
• Final version of NIST guarded-hot-plate apparatus built in 1929 by Van Dusen.
• Chock Siu (sitting), Frank Powell (l), and Tom Watson in front of 1929 NIST guarded-hot-plate apparatus (1973).
• Prototype Robinson line-heat-source guarded- hot-plate apparatus (1978).
• Technicians John McAuley (l) and Rick Petersen instrument the new 1000-mm guarded hot plate. ...
• NIST one-meter line- heat-source guarded-hot-plate apparatus (1980).

• Early Guarded-Hot-Plate Apparatus.
• In 1912, Dickinson conceived and built the first guarded hot plate apparatus at NIST for this purpose. Later, while traveling in Europe, he learned that Poensgen in Germany had been using a guarded hot plate for thermal conductivity measurements since 1910. Prior to the development of the guarded hot plate, heat transfer through insulation had been determined by methods in which heat was transferred through panels of insulation from warm air on one side to cool air on the other. ...
• About 1929, Van Dusen built what was to be the final version of this type of guarded-hot-plate apparatus. ...
• In 1945, the American Society for Testing and Materials formally adopted the guarded-hot-plate method as a standard test method based, in part, on NIST's design. In 1947, Robinson and Watson extended the temperature range of the guarded hot plate apparatus and in the next few years completed the first interlaboratory comparison of thermal conductivity tests of insulations among laboratories, jointly sponsored by the American Society of Heating and Ventilating Engineers and NIST. ...
• Line-Heat-Source Guarded-Hot-Plate Apparatus.
• In 1964, Robinson first presented the basic design of the line-heat-source guarded hot plate to a thermal conductivity conference sponsored by the National Physical Laboratory in England. ...
• In contrast to a (conventional) guarded hot plate that used uniformly distributed heaters, line-heat-source guarded hot plates utilized circular line-heat sources at precisely specified locations. ... The benefits offered by a line-heat-source guarded hot plate included: simpler methods of construction; improved accuracy; simplified mathematical analyses for calculating the mean surface temperature of the plate as well as determining the errors resulting from heat gains or losses at the edges of the specimens; and, use under vacuum conditions.
• The design, mathematical analysis, and uncertainty analysis for a prototype line-heat-source guarded-hot-plate were published in 1973 by Hahn, Robinson (posthumously), and Flynn. ... Because of the promising results from the prototype, NIST began plans for a second, larger line-heat-source guarded hot plate apparatus. ...
• Near the end of 1980, the second line-heat-source guarded-hot-plate apparatus was completed under the efforts of Hahn and Peavy of NIST and Ober, a guest worker from private industry. ... This apparatus eventually replaced the earlier guarded hot plate apparatus that was constructed in 1929 and is still in service today. ... The ASTM standard also includes an adjunct with blueprints of both the NIST prototype and second-generation line-heat-source guarded hot plate apparatus.

• Skip navigation Haemodialysis and guarded fistula needles.
• The use of guarded fistula needles for haemodialysis reduced needlestick injuries to zero.
• Guarded fistula needle reduces needlestick injuries in hemodialysis. ...
• Retrospective data were collected for 15 months before introducing guarded arteriovenous fistula needles, from January 1999.
• Prospectively, from April 2000, information was collected after the introduction of guarded arteriovenous fistula needles. Only one design of guarded arteriovenous fistula needles was used, and unguarded needles were prohibited.
• On the introduction of the guarded arteriovenous fistula needles full training was given, and the reporting policy reaffirmed.
• Table 1: Needlestick injuries with unguarded and guarded arteriovenous fistula needles.
• Guarded.
• The guarded device in this study (Medishield arteriovenous fistula needle with MasterGuard) had a device that allows pressure to be exerted by the fingers while protecting them from the needle.

• NIST/NRC-Canada Interlaboratory Comparison of Guarded Hot Plate Measurements: 1993-1997.
• NIST/NRC-Canada Interlaboratory Comparison of Guarded Hot Plate Measurements: 1993-1997. ...
• guarded hot plate apparatus; alumina silica; glass fiber; insulation; regression; statistics; steady state; thermal conductivity; thermal resistance; uncertainty .
• The measurements were determined using guarded hot plate apparatus at the National Institute of Standards and Technology and at the National Research Council Canada. ...

• History of the Guarded-Hot-Plate Apparatus at NIST .
• , 1970), which includes the early history of the guarded-hot-plate apparatus at NIST. ... Robinson of NIST presented his novel ideas on line heat-sources for guarded hot plates which were later formalized in the publication, "Robinson Line-Heat-Source Guarded-Hot-Plate Apparatus," by M. ...
• History of NIST Guarded-Hot-Plate Apparatus .
• Photograph Gallery of NIST Guarded-Hot-Plate Apparatus .

• Workshop on Guarded Logics: Proof Techniques and Applications .

• Home Page for "Countering Spam with Ham-Authenticated Email and the Guarded Email Protocol".
• The paper available at this location, "Countering Spam with Ham-Authenticated Email and the Guarded Email Protocol", may be an answer to eliminating spam permanently as a serious problem on the Internet. ...
• It then defines a specific new authentication protocol, called "guarded email", that should eliminate nearly all spam without throwing away legitimate email and is extremely resistant to spammer counterattack. In guarded email, received email is first checked by a "guard," and only email that is authenticated as ham is delivered to the final recipient Bob. ...
• Guarded email can incorporate significant new legal protections against spammers: it can include a legal contract for sending email, require spammers to "break into" computers to spam, and demonstrate opting out. ...
• For more information, see my draft paper, "Countering Spam with Ham-Authenticated Email and the Guarded Email Protocol". ...

• Guarded Inn v2 .
• Sunday 23rd September, 2001 Guarded Inn v2.
• click here Inspired by set 6067, The Guarded Inn (in my opinion one of the best of the Castle Series). ...

• Re: Seems like it should be better guarded though.
• In Response To: Re: Seems like it should be better guarded though (replay) .
•      Seems like it should be better guarded though *NM*.
•            Re: Seems like it should be better guarded though.
•            Re: Seems like it should be better guarded though.
•                  Re: Seems like it should be better guarded though.
•                        Re: Seems like it should be better guarded though.
•                              Re: Seems like it should be better guarded though.

• com/guarded-email. ...
• and the Guarded Email Protocol.
• It then defines a specific new challenge-response protocol,  called "guarded email", that should eliminate nearly all spam without throwing away legitimate email and is extremely resistant to spammer counterattack. In guarded email, received email is first checked by a "guard," and only email that is authenticated as ham is delivered to the final recipient Bob. ...  Guarded email can incorporate significant new legal protections against spammers: it can include a legal contract for sending email, require spammers to "break into" computers to spam, and demonstrate opting out. ...
•   The paper then describes the design of a new ham-authenticating protocol, the "guarded email" set of protocols for countering spam.   In guarded email, received email is first checked by a "guard," and only email that is authenticated as ham is delivered to the final recipient Bob. ...
• This is followed by the actual guarded email protocols (both the minimum guarded email protocol and the full guarded email protocol). ...
•  The approach described later, "guarded email", is based on this approach.
• Guarded Email.
• This paper describes a specific ham-authentication approach, called "guarded email". In guarded email, received email is first checked by a "guard," and only email that is authenticated as ham is delivered to the final recipient Bob. ...
•   Bob has a guard controlling his inbox; Alice may or may not also be guarded. ...
• A brief explanation that this is a guarded email account, that the recipient has not yet received the email, and that to complete sending the email the sender must respond correctly to a challenge. ...
•   The original contents should be sent back, so that guarded email users don't have to store large amounts of potentially  worthless spam email. ...
•  However, even if most people had guarded email, spammers are unlikely to respond to every challenge. ...

• Guarded Church.
• Guarded Church .

• What does guarded mean?.
• we found 5 entries for the meaning of guarded.
• Guarded; p. ...
• The body of your discourse is sometime guarded with fragments, and the guards are but slightly basted on neither. ...
• Guarded \Guard"ed\, a. Cautious; wary; circumspect; as, he was guarded in his expressions; framed or uttered with caution; as, his expressions were guarded. ...
• Guarded; p. ...
• Guarded \Guard"ed\, a. Cautious; wary; circumspect; as, he was guarded in his expressions; framed or uttered with caution; as, his expressions were guarded. ...
• guarded adj .
• 2: prudent; "guarded optimism" syn: restrained .
• Search for guarded @ Ask Jeeves | Google | MSN | Yahoo .
• Define guarded and 150,000 other words at dictionary. ...

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