Electrical heat tracing: international harmonization-now and in the future
C. Sandberg
Tyco Thermal Controls
N.R. Rafferty – M. Kleinehanding – J.J. Hernandez
E.I. DuPont de Nemours & Company, Inc
Abstract: In the past, electrical heat tracing has been thought of as a minor addition to plant utilities. Today, it is recognized as a critical subsystem to be monitored and controlled. A marriage between process, mechanical, and electrical engineers must take place to ensure that optimum economic results are produced. The Internet, expert systems, and falling costs of instrumentation will all contribute to more reliable control systems and improved monitoring systems. There is a harmonization between Europe and North America that should facilitate design and installation using common components. The future holds many opportunities to optimize the design.
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Named after Rear Admiral John A. Dahlgren, an influential figure in the development of naval ordnance. Its large, open space was ideal for indoor drills and military exercises. The hall was constructed between 1899 and 1903. Its design was overseen by Ernest Flagg, a prominent architect who designed several buildings at the Naval Academy. Today it houses the Drydock Restaurant, a gathering place for midshipmen, faculty, and visitors.
.@NavyFB wins the 126th Army-Navy Game presented by @USAA and is singing second! 👏#ArmyNavy pic.twitter.com/R0zDl6XNpf
— Army-Navy Game (@ArmyNavyGame) December 13, 2025
🚨 WOW! The National Athem before the Army-Navy game, with President Trump on the field, might just be the BEST rendition I’ve ever heard
How can anyone listen to this and NOT feel patriotic?! 🇺🇸🦅 pic.twitter.com/OrehpqI6RI
— Nick Sortor (@nicksortor) December 13, 2025
Named after Rear Admiral John A. Dahlgren (1809-1870) an influential figure in the development of naval ordnance during the United States Civil War. It served as an armory and drill hall for midshipmen. Its open space was ideal for indoor drills and military exercises.
The hall was constructed between 1899 and 1903. Its design was overseen by Ernest Flagg, a prominent architect who designed several buildings at the Naval Academy. Today it houses the Drydock Restaurant, a gathering place for midshipmen, faculty, and visitors.
Cornell University Dining: Student & Campus Life
Ingredients:
Directions:
*Recipe from Skinny Taste
Nutrition Information: 1 1/3 cups| servings per recipe: 8 | Calories: 192, total fat: 2 g, saturated fat: 0 g, trans fat: 0 g; cholesterol: 1.3 mg, sodium: 159 mg, carbohydrates: 27 g, fiber: 8.3 g, sugar: 8.5 g, protein: 18 g
Nederland | Koninklijk Nederlands Normalisatie Instituut | NEN 1010 (IEC 60364)
Tomorrow Sinterklaas will arrive in the Netherlands from his home in Spain, bringing presents and special treats for children. Learn more about the celebrations to welcome his arrival in #Amsterdam and this amazing Dutch holiday: https://t.co/Guioc6M5Zi pic.twitter.com/6HYoMrPNnO
— I amsterdam (@Iamsterdam) November 16, 2019
Readings:
The Heritage Foundation: Interview with Dutch Scholars on Marriage
“Having visited my great grandmother, Omi, in Germany multiple times growing up, I’ve always had a special connection to German baked goods. While I have yet to find the perfect German pretzel in the U.S. or a recipe that yields a decent replica, I have discovered that stollen — a traditional German Christmas bread — is relatively easy to recreate in my own kitchen.” — Alison Tashima, Class of 2024
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“I know that I am mortal by nature, and ephemeral;
but when I trace at my pleasure the windings to and fro of the heavenly bodies,
I no longer touch Earth with my feet:
I stand in the presence of Zeus himself and take my fill of ambrosia.”
— Ptolemy, “Mathematike Syntaxis” 150 A.D
Planetariums in schools and colleges play a central in enhancing astronomy and astrophysics education. They provide immersive experiences that can ignite students’ interest and curiosity about the universe, making complex astronomical concepts more comprehensible and engaging. Observatories do much that but with direct access to telescopes and other observational tools — frequently away from campus — thus allowing them to engage in hands-on learning and real-time data collection.
Establishing research and teaching programs present special occupancy challenges. The cost of high-quality telescopes and equipment, along with the need for a suitable location with minimal light pollution, can be substantial. Additionally, schools require trained staff to guide students in using the equipment and interpreting data. Weather conditions and geographical location also impact the effectiveness of observatories. Despite these hurdles, the educational value of observatories is immense, providing students with unique opportunities to explore the universe and cultivate a passion for scientific inquiry.
Today we examine both occupancies using our SAFER-SIMPLER-LOWER COST-LONGER LASTING discipline. Use the login credentials at the upper right of our home page at the usual hour.
Purdue University: Grand Universe planning liftoff in Hamilton County
The International Building Code includes various sections that address safety requirements relevant to observatories and planetariums. Key parts of the IBC that cover these requirements include:
These chapters collectively ensure that planetariums and observatories are designed and constructed with safety, accessibility, and functionality in mind. For detailed information, it is recommended to refer to the latest edition of the IBC and consult with a professional knowledgeable in building codes and standards.
World Astronomy Day is Saturday, and to celebrate we are showing off some of our favorite pictures of the Albion College Observatory. The Albion College Observatory was constructed from 1883-1884 under the direction of Dr. Samuel Dickie. #ThrowbackThursday #TBT #MyAlbion pic.twitter.com/ixgtAMlP4z
— Albion College (@albioncollege) May 13, 2021
Designing and building a telescope for teaching and light research at a college or university requires a detailed consideration of both the telescope itself and the supporting infrastructure. Here are the central architectural features:
Telescope Structure:
Support Infrastructure:
By integrating these architectural features, a college or university can create a functional and effective observatory that supports both teaching and light research in astronomy.
University of Michigan | Detroit Observatory
Designing and building a planetarium for public use involves careful consideration of various architectural features to ensure functionality, aesthetics, and a positive visitor experience. Here are the central architectural features required:
These architectural features are essential to create a functional, welcoming, and educational environment in a planetarium for public use.
New update alert! The 2022 update to the Trademark Assignment Dataset is now available online. Find 1.29 million trademark assignments, involving 2.28 million unique trademark properties issued by the USPTO between March 1952 and January 2023: https://t.co/njrDAbSpwB pic.twitter.com/GkAXrHoQ9T
— USPTO (@uspto) July 13, 2023
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