A Bipolar Junction Transistor (BJT) is a type of transistor that uses both electron and hole charge carriers. It is a fundamental component in electronic devices and has three regions of semiconductor material, which are respectively called the emitter, base, and collector. The operation of a BJT is based on the principle of controlling a large current through the collector-emitter path with a smaller current at the base-emitter junction.

The EKV MOSFET model (which stands for Enz-Krummenacher-Vittoz) is a mathematical model used to describe the electrical characteristics of MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) devices. This model is particularly well-suited for analog circuit design and is appreciated for its accuracy in transconductance calculations and its capability to model short-channel effects.

The Gummel-Poon model is a semiconductor device modeling framework, primarily used for the simulation of bipolar junction transistors (BJTs) and some MOSFET characteristics. It was developed by the physicists Gummel and Poon in the 1970s and has become a foundational element in circuit simulation tools.

Accessible transportation refers to transportation systems and services designed to accommodate individuals with disabilities, including those with mobility, sensory, cognitive, and other impairments. The goal of accessible transportation is to ensure that all individuals can travel safely, efficiently, and with dignity, regardless of their abilities. Key features of accessible transportation may include: 1. **Accessible Vehicles:** Buses, trains, and taxis equipped with features like wheelchair ramps, lifts, and designated spaces for passengers with disabilities.

Energy in transport refers to the various forms of energy used to move people and goods from one location to another. It encompasses the energy systems, technologies, and practices that enable transportation across different modes, including road, rail, air, and maritime transport. Here are the key aspects of energy in transport: 1. **Types of Energy Sources**: - **Fossil Fuels**: Traditional transport systems primarily rely on gasoline, diesel, and jet fuel, which are derived from oil.

"Health and transport" refers to the interactions between public health and transportation systems, encompassing how transportation affects health outcomes and how health considerations can influence transportation policy and planning. Here are some key aspects of this relationship: 1. **Access to Healthcare**: Effective transportation systems are essential for ensuring that individuals can access healthcare services. Lack of transportation can be a significant barrier to receiving timely medical care, leading to poorer health outcomes.

The history of transport is a broad and fascinating field that outlines how human beings have developed methods to move themselves and goods from one place to another throughout history. Here's an overview of its evolution across different eras and key milestones: ### Prehistoric Times - **Walking**: The most fundamental form of transport, as early humans traveled on foot to hunt, gather, and migrate.

ICE in transportation usually refers to "InterCity Express," which is a high-speed train service operated by Deutsche Bahn (DB) in Germany. The ICE trains are designed for long-distance travel between major cities, offering comfort and efficiency. They are equipped with modern amenities, including air conditioning, onboard catering, Wi-Fi, and comfortable seating. ICE trains can reach speeds of up to 300 km/h (about 186 mph) on certain routes and are part of Germany's extensive rail network.

Intermodal transport refers to the use of two or more different modes of transportation to move goods from one location to another. This approach combines multiple forms of transportation—such as trucks, trains, ships, or airplanes—within a single, seamless transport chain. Key features of intermodal transport include: 1. **Containerization**: Goods are typically loaded into standardized containers that can be easily transferred between different modes of transport without needing to unpack the contents.

International transport refers to the movement of goods, services, or individuals across national borders. This can occur via various modes, including: 1. **Air Transport**: Utilizes airplanes to move cargo and passengers quickly over long distances, often essential for high-value or time-sensitive shipments. 2. **Maritime Transport**: Involves shipping goods via ocean or inland waterways using cargo ships, container vessels, and bulk carriers.

"People in Transport" generally refers to the various roles and responsibilities of individuals involved in the transportation sector. This can encompass a wide range of professions and stakeholders, including: 1. **Transport Workers**: This includes drivers (e.g., bus, taxi, truck), pilots, train conductors, and maritime personnel (e.g., ship captains, deckhands).

Supersonic transports (SSTs) are aircraft designed to fly faster than the speed of sound, which is approximately 343 meters per second (about 1,125 kilometers per hour or 700 miles per hour) at sea level. The most famous example of a supersonic transport is the Concorde, which could cruise at speeds of around Mach 2.04 (about 1,354 miles per hour or 2,180 kilometers per hour).

"Transport by location" typically refers to the methods or systems of transportation that are available or utilized in a specific geographic area. This concept covers various aspects, including: 1. **Types of Transport**: The modes of transport available in a location, such as road, rail, air, water (shipping), and public transit options (buses, trams, subways).

Langley's Adventitious Angles refer to a phenomenon in astronomy and optics that relates to the measurement of angles in a way that accounts for certain observational errors or adjustments. This term is not widely recognized in standard texts and may be more specifically relevant to historical contexts or specific studies by astronomer Samuel Langley, who was active in the late 19th and early 20th centuries.

Lemoine's problem, named after the French mathematician Georges Lemoine, is a conjecture in number theory concerning the representation of odd integers as sums of prime numbers. Specifically, the conjecture posits that every odd integer greater than 5 can be expressed as the sum of an odd prime and an even semiprime (a product of two primes, where at least one of the primes is 2).

"Transport by time" typically refers to concepts related to time transportation, often discussed in the context of science fiction, theoretical physics, or philosophical debates about time travel. It primarily encompasses two main ideas: 1. **Time Travel in Fiction:** In stories, films, and television shows, "transport by time" can imply a character or object moving backward or forward through time, allowing them to interact with different historical periods or future events. This can involve devices such as time machines (e.g.

"Transport controversies" generally refer to disputes, debates, or discussions surrounding issues related to transportation systems and policies. These controversies can arise from a variety of factors, including environmental concerns, social justice, urban planning, funding, safety, and technological advancements. Key areas of transport controversies often include: 1. **Infrastructure Development**: Large infrastructure projects, such as highways, railways, bridges, and airports, can lead to controversies over funding, environmental impact, and displacement of communities.

Transport culture refers to the social, economic, and environmental practices, attitudes, and behaviors associated with the movement of people and goods. It encompasses a variety of aspects, including the modes of transportation used (such as cars, buses, trains, bicycles, walking, etc.), the infrastructure that supports transport (like roads, railways, airports, and public transit systems), and the regulations and policies that govern transportation systems.

The 85th percentile speed is a measurement used in traffic engineering and transportation studies to indicate the speed at which 85% of vehicles are traveling at or below on a particular stretch of road at a given time. In essence, it is a statistical measure that helps identify the speed at which most drivers are comfortable driving without feeling the need to speed. To calculate the 85th percentile speed, traffic speed data is collected from a specified site over a certain period.

Transport in culture refers to the ways in which transportation systems, technologies, and practices influence and shape cultural dynamics within societies. It encompasses various dimensions, including: 1. **Cultural Exchange**: Transport facilitates the movement of people and goods, enabling the exchange of ideas, traditions, and customs among different cultures. This can lead to cultural blending and the emergence of new social practices. 2. **Regional Identity**: Different modes of transport can contribute to regional identities.