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Fish Fry

Indiana

 

 

 

 

 

 

 

 

 

 

 

 

 

“The Fish Fry is the unofficial homecoming of Indiana agriculture,” said Danica Kirkpatrick, Executive Director of the Ag Alumni Association. “Not only do we have a fun, educational program, but our guests tell us each year how much they enjoy the networking and exhibit area. While you can’t help but notice the obvious Purdue Pride at the Fish Fry, you don’t have to be an alumnus to attend.”

 

 

 

 

 

 

 

 

 

 

 

 

 

Standards Indiana

Edge Case: Leap Year

Date & Time: Representations For Information Interchange

Programming languages face several challenges when dealing with leap years, primarily because leap years don’t follow a simple pattern and can vary depending on the calendar system being used.  Some of the challenges include:

Algorithm Complexity: Writing algorithms to accurately determine leap years can be complex due to the various rules governing leap years in different calendar systems. For instance, the Gregorian calendar, which is the most widely used calendar system, has different rules than other systems like the Julian calendar.

Handling Calendar Systems: Some programming languages have built-in libraries or functions to handle leap years, but they may not support all calendar systems. Developers need to ensure that the language’s built-in functions or libraries accurately handle leap years according to the desired calendar system.

Cross-Platform Consistency: Different platforms and programming languages may implement leap year calculations differently, leading to inconsistencies when working with date and time data across different systems.

Localization: Some calendar systems used in various regions have different rules for leap years. Programming languages may need to support localization to handle these differences accurately.

Performance: Implementing leap year calculations efficiently can be challenging, especially when dealing with large datasets or frequent date/time manipulations. Optimizing leap year calculations for performance without sacrificing accuracy is important in high-performance applications.

To address these challenges, programmers often rely on built-in date and time libraries provided by programming languages or use third-party libraries specifically designed to handle calendar-related calculations accurately and efficiently. Additionally, thorough testing and validation of date-related logic are essential to ensure correctness, especially in critical applications.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

In Python, leap years can be accounted for using the calendar module or by writing custom logic. The calendar module provides a function called isleap() to check if a given year is a leap year.

Here’s an example of how you can use the calendar module to check if a year is a leap year:

python

import calendar

year = 2024

if calendar.isleap(year):
print(f”{year} is a leap year.”)
else:
print(f”{year} is not a leap year.”)

Alternatively, you can write custom logic to determine if a year is a leap year. The logic for determining leap years is as follows:

    1. If a year is evenly divisible by 4, it is a leap year.
    2. However, if the year is evenly divisible by 100, it is not a leap year, unless:
    3. The year is also evenly divisible by 400, in which case it is a leap year.

Here’s an example of how you can implement this logic in Python without using the calendar module:

python
def is_leap_year(year):
if year % 4 == 0:
if year % 100 == 0:
if year % 400 == 0:
return True
else:
return False
else:
return True
else:
return Falseyear = 2024if is_leap_year(year):
print(f”{year} is a leap year.”)
else:
print(f”{year} is not a leap year.”)
Both approaches will correctly determine whether a given year is a leap year or not.

 

Standards February: Discovery & Invention

“Science advances one funeral at a time”
— Max Planck

you shall above all things be glad and young For if you're young,whatever life you wear it will become you;and if you are glad whatever's living will yourself become. - e. e. cummingsPhilosophiæ Naturalis Principia Mathematica | 1686 Sir Issaac Newton

A Mathematical Theory of Communication | 1948 Claude E. Shannon (University of Michigan)

Image: Christopher Newport University

1955 Polio Vaccine: Jonas Salk (University of Michigan)

Reflections / John Nash

The Future of Cosmology | Roger Penrose

A Structure for Deoxyribose Nucleic Acid | James Watson & Francis Crick

Quantum Information Science


Sir Isaac Newton’s Principia: Mathematical Principles of Natural Philosophy

“One teacher even failed me in Chemistry” Tomas Lindahl

Discovery of Receptors for Temperature and Touch

Speculative Prices, Inflation & Behavioral Economics


The fundamental concept in social science is Power, in the same sense in which Energy is the fundamental concept in physics. - Bertrand Russell

Time Series Analysis, Cointegration and Applications


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Steam Engine: The invention of the steam engine in the 18th century by pioneers like James Watt revolutionized industry, transportation, and agriculture, powering factories, locomotives, and ships and driving the Industrial Revolution.

The Internal Combustion Engine: The development of the internal combustion engine in the 19th century revolutionized transportation and manufacturing, leading to the proliferation of automobiles, airplanes, and machinery that powered economic growth and globalization.

The Internet: Originating from research projects in the late 20th century, the internet has become a fundamental infrastructure for communication, commerce, education, and entertainment, connecting billions of people worldwide and enabling unprecedented access to information and resources.

Semiconductors and Integrated Circuits: The invention of semiconductors and integrated circuits in the mid-20th century paved the way for the digital revolution, enabling the miniaturization and mass production of electronic devices such as computers, smartphones, and microprocessors.

Agriculture: The transition from a hunter-gatherer lifestyle to settled agriculture marked the beginning of civilization and allowed for the development of permanent settlements, leading to population growth, specialization of labor, and the emergence of complex societies.

The Wheel: Invented around 3500 BCE, the wheel revolutionized transportation, enabling the movement of goods and people over long distances and laying the foundation for subsequent advancements in engineering and machinery.

Writing: The development of writing systems, such as cuneiform in Mesopotamia and hieroglyphs in Egypt, facilitated the recording and dissemination of information, contributing to the preservation of knowledge, governance, and cultural expression.

Martingale Representation Theorem

Professional Engineering Licensure

Scientists investigate that which already is; Engineers create that which has never been. - Albert Einstein

Intuitive Machines

Electrical Engineering License: Example Questions

Power Factor Correction

Voltage Drop Calculations

Short Circuit Calculations

Electric Machines Motors & Generators

Digital Electronics

Power Systems

Stability Analysis

Communication

Illumination

Cost Analysis and Project Economics

Python

Mechanical Engineering License: Example Questions

Civil Engineering License: Example Questions

Colloquy (February)

Illustration from 1913 showing Pythagoras teaching a class of women. Pythagoras believed that women should be taught philosophy as well as men and many prominent members of his school were women.Our practice is fairly structured as our Syllabus reveals.  Once a month we like to break form and throw our agenda “open”.  Unstructured.  Completely determined by the interest of our clients, colleagues and followers.  Use the login credentials at the upper right of our home page.

Abiit sed non oblitus | Michigan

Why Intellectuals Drift Towards Socialism

“Reflections on the motive power of fire: | Sadi Carnot

Standards February: Discovery & Invention

Standards January: Language

* Lyndon B. Johnson played a significant role in the passage of the Education Acts of 1965, which consisted of two key pieces of legislation: the Elementary and Secondary Education Act (ESEA) and the Higher Education Act (HEA).

As President of the United States, Johnson made education reform a priority of his administration and saw it as a means of addressing poverty and inequality in America. He signed the ESEA into law in April 1965, which was designed to provide funding to schools serving low-income students and aimed to close the achievement gap between disadvantaged students and their more affluent peers. The ESEA also provided funds for teacher training and other educational programs.

In November of the same year, Johnson signed the HEA into law, which provided funding for college and university education and sought to make higher education more accessible to all Americans.

Together, these Education Acts of 1965 were a significant achievement for Johnson’s administration and played a crucial role in expanding educational opportunities for millions of Americans. They marked a major shift in federal education policy and helped to establish the federal government’s role in shaping education policy in the United States.

 

National Institutes of Health (Library of Medicine)

Moral grandstanding in public discourse: Status-seeking motives as a potential explanatory mechanism in predicting conflict

 

Dr. Jill Jacobs-Biden: Student Retention at the Community College: Meeting Student’s Needs

Michelle Obama: Princeton-Educated Blacks and the Black Community

Dr. Claudine Gay: Taking charge: Black electoral success and the redefinition of American politics

Ibram X. Kendi (Henry Rogers):  The Black Campus Movement: An Afrocentric Narrative History of the Struggle to Diversify Higher Education, 1965-1972

Martin Luther King, Jr.: A Comparison of the Conceptions of God in the Thinking of Paul Tillich and Henry Nelson Wieman

Hilary Clinton: There is Only the Fight…

John Kennedy: Appeasement at Munich

Janet Yellen: Employment, Output and Capital Accumulation in an Open Economy: A Disequilibrium Approach.

John Nash: Non-Cooperative Games

Reflections / John Nash

 

Evensong “A Boy and A Girl”

The University Academic Choir was founded in 1948 and has a wide-ranging repertoire that includes classical, folk, and sacred music.  The choir is also involved in promoting the cultural heritage of Poland and building cultural connections with other countries around the world.

Eric Whitacre: Original poem Octavio Paz

History of Western Civilization Told Through the Acoustics of its Worship Spaces

Polska

Outdoor Deicing & Snow Melting

“Snow at Argenteuil” | Claude Monet (1875)

Today our focus turns to outdoor electric deicing and snow melting wiring systems identified as suitable for the environment and installed in accordance with the manufacturer’s instructions.  They work silently to keep snow load from caving in roofs and icicles falling from gutters onto pedestrian pathways.

While the voltage and ampere requirement of the product itself is a known characteristic, the characteristic 0f the wiring pathway — voltage, ampere, grounding, short circuit, disconnect and control — is relatively more complicated and worthy of our attention.   Articles 426-427 of the National Electrical Code is the relevant part of the NEC

Free Access 2023 National Electrical Code

Insight into the ideas running through technical committee deliberations is provided by a review of Panel 17 transcripts:

2023 NEC Panel 17 Public Input Report (633 pages)

2023 NEC Panel 17 Public Comment Report (190 pages)

We hold Articles 427 in the middle of our priority ranking for the 2023 NEC.   We find that the more difficult issues for this technology is the determination of which trade specifies these systems — architectural, electrical, or mechanical; covered in previous posts.   Instead, most of our time will be spent getting IEEE consensus products in step with it, specifically ANSI/IEEE 515 and IEEE 844/CSA 293.

Comments on the First Draft of the 2026 NEC will be received until August 28th.

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We collaborate with the IEEE Education & Healthcare Facility Committee which meets online 4 times per month in European and American time zones.  Since a great deal of the technical basis for the NEC originates with the IEEE we will also collaborate with IEEE Standards Coordinating Committee 18 whose members are charged by the IEEE Standards Association to coordinate NFPA and IEEE consensus products.

Issue: [19-151]

Category: Electrical, Energy

Colleagues: Mike Anthony, Jim Harvey, Kane Howard, Jose Meijer

LEARN MORE:

IEEE Standard for the Testing, Design, Installation, and Maintenance of Electrical Resistance Heat Tracing for Commercial Applications

844.2/CSA C293.2-2017 – IEEE/CSA Standard for Skin Effect Trace Heating of Pipelines, Vessels, Equipment, and Structures–Application Guide for Design, Installation, Testing, Commissioning, and Maintenance

 

Stitches, Seams & Stitching

The Intersection of Design and Engineering

Du froid

“Weather is fate”

— Charles Louis de Secondat, Baron de La Brède et de Montesquieu

“Road to Versailles at Louveciennes” 1869 Camille Pissarro

Heat tracing is a process used to maintain or raise the temperature of pipes and vessels in order to prevent freezing, maintain process temperature, or ensure that products remain fluid and flow through the system properly.

Heat tracing works by using an electric heating cable or tape that is wrapped around the pipe or vessel, and then insulated to help retain the heat. The heating cable is connected to a power source and temperature control system that maintains the desired temperature by regulating the amount of heat output from the cable. Heat tracing is commonly used in industrial applications where temperature control is critical, such as in chemical plants, refineries, and oil and gas facilities.

There are several types of heat tracing, including electric heat tracing, steam tracing, and hot water tracing, each of which have their own unique advantages and disadvantages. The selection of the appropriate type of heat tracing depends on the specific application and the required temperature range, as well as factors such as cost, maintenance, and safety considerations.

Today we review the literature for snow and ice management (and enjoyment) produced by these standards-setting organizations:

Accredited Snow Contractors Association

American Society of Civil Engineers

American Society of Mechanical Engineers

ASTM International

FM Global

Destructive Deep Freeze Strikes Cold and Hot Regions Alike

Institute of Electrical & Electronic Engineers

Electrical Heat Tracing: International Harmonization — Now and in the Future

International Code Council

International Building Code: Chapter 15 Roof Assemblies and Rooftop Structures

National Electrical Contractors Association

National Fire Protection Association

Winter is Coming: Is Your Facility Protected? (Holly Burgess, November 2022)

National Electrical Code: Articles 426-427

National Floor Safety Institute

Snow and Ice Management Association

Underwriters Laboratories

Manufacturers:

Chromalox Electrical Heat Tracing Systems Design Guide


It is a surprisingly large domain with market-makers in every dimension of safety and sustainability; all of whom are bound by state and federal regulations.

Join us at 16:00 UTC with the login credentials at the upper right of our home page.

There have been several recent innovations that have made it possible for construction activity to continue through cold winter months. Some of the most notable ones include:

  1. Heated Job Site Trailers: These trailers are equipped with heating systems that keep workers warm and comfortable while they take breaks or work on plans. This helps to keep morale up and prevent cold-related health issues.
  2. Insulated Concrete Forms (ICFs): ICFs are prefabricated blocks made of foam insulation that are stacked together to form the walls of a building. The foam insulation provides an extra layer of insulation to keep the building warm during cold winter months.
  3. Warm-Mix Asphalt (WMA): WMA is a type of asphalt that is designed to be used in colder temperatures than traditional hot-mix asphalt. This allows road construction crews to work through the winter months without having to worry about the asphalt cooling and becoming unusable.
  4. Pneumatic Heaters: These heaters are used to warm up the ground before concrete is poured. This helps to prevent the concrete from freezing and becoming damaged during the winter months.
  5. Electrically Heated Mats: These mats are placed on the ground to prevent snow and ice from accumulating. This helps to make the job site safer and easier to work on during the winter months.

Overall, these innovations have made it possible for construction crews to work through the winter months more comfortably and safely, which has helped to keep projects on schedule and minimize delays.

Electrical heat tracing: international harmonization-now and in the future

 

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.

CLICK HERE to order complete paper

 

Heat Tracing Installation

Industrial electroheating and electromagnetic processing

Pipe Heating

Heat Tracing

 

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