Laboratory Safety Guidance

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Laboratory Safety Guidance

June 6, 2024
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LEARN MORE:

OSHA Bibliography: Laboratory Safety

Illinois State University. Chemical Hygiene Plan for Chemistry Laboratories: Information and Training, 1995

University of Illinois at Urbana-Champaign. UIUC Model Chemical Hygiene Plan, 1999

University of Nebraska – Lincoln. UNL Environmental Health and Safety. Safe Operating Procedures, 2005-2008

OSHA News Release Region 1: Laboratory Citation

 

Modular Classrooms

June 5, 2024
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Complete Monograph International Building Code

Note the following proposed changes in the transcript above: E59-24, F62-24, Section 323

Modular classrooms, often used as temporary or semi-permanent solutions for additional educational space, have specific requirements in various aspects to ensure they are safe, functional, and comfortable for occupants.  Today we will examine best practice literature for structural, architectural, fire safety, electrical, HVAC, and lighting requirements.  Use the login credentials at the upper right of our home page.

Structural Requirements

  1. Foundation and Stability: Modular classrooms require a stable and level foundation. This can be achieved using piers, slabs, or crawl spaces. The foundation must support the building’s weight and withstand environmental forces like wind and seismic activity.
  2. Frame and Load-Bearing Capacity: The frame, usually made of steel or wood, must support the load of the classroom, including the roof, walls, and occupants. Structural integrity must comply with local building codes.
  3. Durability: Materials used should be durable and capable of withstanding frequent relocations if necessary.

Architectural Requirements

  1. Design and Layout: Modular classrooms should be designed to maximize space efficiency while meeting educational needs. This includes appropriate classroom sizes, storage areas, and accessibility features.
  2. Accessibility: Must comply with the Americans with Disabilities Act (ADA) or other relevant regulations, ensuring accessibility for all students and staff, including ramps, wide doorways, and accessible restrooms.
  3. Insulation and Soundproofing: Adequate insulation for thermal comfort and soundproofing to minimize noise disruption is essential.

Fire Safety Requirements

  1. Fire-Resistant Materials: Use fire-resistant materials for construction, including fire-rated walls, ceilings, and floors.
  2. Sprinkler Systems: Installation of automatic sprinkler systems as per local fire codes.
  3. Smoke Detectors and Alarms: Smoke detectors and fire alarms must be installed and regularly maintained.
  4. Emergency Exits: Clearly marked emergency exits, including doorways and windows, with unobstructed access paths.

Electrical Requirements

  1. Electrical Load Capacity: Sufficient electrical capacity to support lighting, HVAC systems, and educational equipment like computers and projectors.
  2. Wiring Standards: Compliance with National Electrical Code (NEC) or local electrical codes, including proper grounding and circuit protection.
  3. Outlets and Switches: Adequate number of electrical outlets and switches, placed conveniently for classroom use.

HVAC (Heating, Ventilation, and Air Conditioning) Requirements

  1. Heating and Cooling Systems: Properly sized HVAC systems to ensure comfortable temperatures year-round.
  2. Ventilation: Adequate ventilation to provide fresh air and control humidity levels, including exhaust fans in restrooms and possibly kitchens.
  3. Air Quality: Use of air filters and regular maintenance to ensure good indoor air quality.

Lighting Requirements

  1. Natural Light: Maximization of natural light through windows and skylights to create a pleasant learning environment.
  2. Artificial Lighting: Sufficient artificial lighting with a focus on energy efficiency, typically using LED fixtures. Lighting should be evenly distributed and glare-free.
  3. Emergency Lighting: Battery-operated emergency lighting for use during power outages.

By adhering to these requirements, modular classrooms can provide safe, functional, and comfortable educational spaces that meet the needs of students and staff while complying with local regulations and standards.

Related:

“Rerum cognoscere causas”

June 5, 2024
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The London School of Economics does not have a single central, marquee building that defines the entire campus as typical for many US colleges and universities. Rather, it consists of a collection of buildings located around the Aldwych and Clare Market areas in central London. However, some notable buildings include:

Old Building: One of the most iconic and historic buildings of LSE, often associated with the institution’s identity.

New Academic Building: A modern and well-equipped facility that hosts a variety of academic departments and student services.

Lionel Robbins Library: Home to the British Library of Political and Economic Science, one of the largest libraries in its field.

Centre Building: A newer addition to the campus, providing state-of-the-art facilities for teaching and learning.

These structures collectively define that LSE settlement in central London.

Lesser known facts about the London School of Economics

 

A Modular Control Lab Equipment and Virtual Simulations for Engineering Education

June 5, 2024
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A Modular Control Lab Equipment and Virtual Simulations for Engineering Education

Vanessa Young, et. al | Kennesaw State University Department of Mechanical Engineering

Abstract: Hands-on experiences in engineering education are highly valued by students. However, the high cost, large size, and non-portable nature of commercially available laboratory equipment often confine these experiences to lab courses, separating practical demonstrations from classroom teaching. Consequently, mechanical engineering students may experience a delay in practical engagement as lab sessions typically follow theoretical courses in subsequent semesters, a sequence that differs from mechatronics, electrical, and computer engineering programs. This study details the design and development of portable and cost-effective control lab equipment that enables in-class demonstrations of a proportional-integral-derivative (PID) controller for the trajectory and speed control of a DC motor using MATLAB Simulink, as well as disturbance control. The equipment, composed of a DC motor, beam, gears, crank, a mass, and propellers, introduces disturbances using either propellers or a rotating unbalanced mass. All parts of the equipment are 3D printed from polylactic acid (PLA). Furthermore, the beam holding the propellers can be attached to Quanser Qube lab equipment, which is widely used in control laboratories. The lab equipment we present is adaptable for demonstrations, classroom projects, or as an integral part of lab activities in various engineering disciplines.

Standards Georgia

 

Hot Dog University

June 4, 2024
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The iconic American “street food” traces its origin to 19th century German immigrants who brought frankfurters from their homeland.

In the 1860s, the term “hot dog” emerged in reference to these sausages being sold in buns at street carts. The popularity of hot dogs soared during the late 19th and early 20th centuries particularly at baseball games where the hot dog is virtually synonymous.at the sport.

In many college towns push cart hot dog vendors may be welcomed and even embraced as part of the local food scene. They can add variety and convenience for students, faculty, and staff by offering affordable and quick meal options. These towns may have regulations and policies in place to support and accommodate such vendors.

The case against hot dogs as a food primarily revolves around health concerns and potential risks associated with their consumption. Some of the key arguments include:

Processed meat and additives: Hot dogs are often made from processed meats that can contain additives, preservatives, and high levels of sodium. These additives, such as nitrates and nitrites, have been linked to increased risks of certain health issues, including cancer and heart disease.

High in unhealthy fats: Hot dogs are typically high in saturated and trans fats, which can contribute to elevated cholesterol levels and increase the risk of cardiovascular diseases.

Potential for contamination: There have been instances of foodborne illnesses associated with hot dogs, such as outbreaks of bacterial contamination, including E. coli or Listeria monocytogenes. Improper handling, storage, or undercooking can increase the risk of such contamination.

Allergens and dietary restrictions: Hot dogs often contain common allergens like wheat, soy, and dairy. Additionally, they may not be suitable for individuals with dietary restrictions or preferences, such as vegetarians, vegans, or those following specific religious or cultural dietary guidelines.

Environmental impact: The production and consumption of hot dogs contribute to environmental concerns. The meat industry, including processed meat production, is associated with greenhouse gas emissions, land degradation, and water pollution.

These arguments against hot dogs do not necessarily apply to all hot dogs or to every individual. Moderation, choosing healthier options, and considering individual dietary needs and preferences can help mitigate some of the concerns associated with hot dog consumption.

Paul Mitchell The School | Tinley Park

Relevant codes, standards and regulations:

Food Safety and Inspection Service: Federal Meat Inspection Act

U.S. Department of Agriculture: Hot Dogs and Food Safety

Codex Alimentarius

Nourriture d’automne

Manifesto for Software Development

June 4, 2024
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Alan Turing is widely considered to be the father of theoretical computer science and artificial intelligence

Manifesto for Agile Software Development


LIVE Construction Camera: $41 Million Nucor Mineral Industries Building

June 3, 2024
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Officials blame inflation for state building projects that are millions over budget


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