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Qukut Latest Questions

Pankaj Gupta
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Pankaj GuptaScholar
Asked: 2 weeks agoIn: Science

What is Nitrogen Narcosis?

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What is Nitrogen Narcosis?

What is Nitrogen Narcosis?

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nitrogen narcosis
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Urmila
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UrmilaExplorer
Asked: 2 months agoIn: Science

What are some innovative products or inventions that remain largely …

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What are some innovative products or inventions that remain largely unknown?

What are some innovative products or inventions that remain largely unknown?

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innovationsproducts
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Pankaj Gupta
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Pankaj GuptaScholar
Asked: 2 months agoIn: Physics

What are computational fluid dynamics (CFD)?

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What are computational fluid dynamics (CFD)?

What are computational fluid dynamics (CFD)?

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cfdcomputational fluid dynamics
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Answer
  1. Pankaj Gupta
    Pankaj Gupta Scholar
    Added an answer about 2 months ago

    Computational Fluid Dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis, algorithms, and computational power to analyze and simulate the behavior of fluids (liquids and gases) and their interactions with surfaces. It involves solving complex mathematical equations that governRead more

    Computational Fluid Dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis, algorithms, and computational power to analyze and simulate the behavior of fluids (liquids and gases) and their interactions with surfaces. It involves solving complex mathematical equations that govern fluid flow, heat transfer, chemical reactions, and related physical phenomena.

    Key Components of CFD:

    1. Governing Equations: At the core of CFD are the Navier-Stokes equations, which describe the motion of fluid substances. These equations are based on:

      • Conservation of Mass: Also known as the continuity equation.
      • Conservation of Momentum: Describes the forces acting on the fluid.
      • Conservation of Energy: Governs heat transfer and thermal effects.
    2. Discretization Methods: Since analytical solutions to fluid dynamics problems are often impractical, CFD converts the continuous fluid domain into a finite set of discrete points or elements using methods like:

      • Finite Volume Method (FVM)
      • Finite Element Method (FEM)
      • Finite Difference Method (FDM)
    3. Meshing: The fluid domain is divided into smaller elements or cells, forming a grid (mesh). The quality of the mesh affects the accuracy and stability of the simulation.

    4. Numerical Solvers: These solvers compute the fluid flow by iterating through the discretized equations over the mesh until the solution converges.

    5. Post-Processing: Visualization and analysis of the results, including flow patterns, velocity fields, pressure distribution, and temperature variations.

    Applications of CFD:

    • Aerospace: Designing aerodynamic components and studying airflow over aircraft wings.
    • Automotive: Improving vehicle aerodynamics and internal combustion engine design.
    • Civil Engineering: Modeling fluid flows in natural water bodies and infrastructure systems.
    • Energy Sector: Simulating combustion processes in power plants and wind flow in wind turbines.
    • Biomedical Engineering: Analyzing blood flow in arteries and the performance of medical devices.

    Advantages of CFD:

    • Cost-Effective: Reduces the need for expensive physical prototypes and experiments.
    • Versatile: Can simulate a wide range of fluid behaviors and conditions.
    • Predictive Power: Helps in optimizing designs and improving performance.

    Challenges of CFD:

    • Computationally Intensive: Requires significant processing power and memory.
    • Complexity in Modeling: Accurate simulation depends on the choice of models, boundary conditions, and mesh quality.
    • Numerical Errors: Discretization and approximation can introduce errors.

    CFD has become an indispensable tool across many industries, enabling engineers and researchers to gain deep insights into fluid behavior and optimize systems efficiently. With advancements in computing technology, CFD continues to expand its capabilities and applications.

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Pankaj Gupta
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Pankaj GuptaScholar
Asked: 3 months agoIn: Physics

The 'Higgs Boson' particle was confirmed in which year?

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The ‘Higgs Boson’ particle was confirmed in which year?

The ‘Higgs Boson’ particle was confirmed in which year?

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higgs bosonphysics
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  1. Pankaj Gupta
    Pankaj Gupta Scholar
    Added an answer about 3 months ago

    The Higgs Boson particle was confirmed in 2012 by scientists at CERN using the Large Hadron Collider.

    The Higgs Boson particle was confirmed in 2012 by scientists at CERN using the Large Hadron Collider.

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AVG
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Poll
AVGExplorer
Asked: 3 months agoIn: Physics

Who among the following is associated with the development of …

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Who among the following is associated with the development of the theory of relativity?

Who among the following is associated with the development of the theory of relativity?

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physicstheory of relativity
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AVG
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Poll
AVGExplorer
Asked: 3 months agoIn: Science, History

Which of the following was the first country to develop …

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Which of the following was the first country to develop nuclear weapons?

Which of the following was the first country to develop nuclear weapons?

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bhawnagupta
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bhawnaguptaBeginner
Asked: 3 months agoIn: Anthropology, Botany, Geography, History, Zoology

The word ‘Denisovan’ is sometimes mentioned in media in reference …

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The word ‘Denisovan’ is sometimes mentioned in media in reference to?

The word ‘Denisovan’ is sometimes mentioned in media in reference to?

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anthropologybotanyhumanszoology
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Answer
  1. Pankaj Gupta
    Pankaj Gupta Scholar
    Added an answer about 3 months ago

    The word Denisovan refers to an extinct group of archaic humans that lived in parts of Asia around 50,000 to 200,000 years ago. They are named after the Denisova Cave in Siberia, where their fossils and genetic material were first discovered in 2008. Denisovans are closely related to Neanderthals anRead more

    The word Denisovan refers to an extinct group of archaic humans that lived in parts of Asia around 50,000 to 200,000 years ago. They are named after the Denisova Cave in Siberia, where their fossils and genetic material were first discovered in 2008. Denisovans are closely related to Neanderthals and modern humans, and their DNA has been found in some modern populations, particularly among Melanesians, Aboriginal Australians, and some Southeast Asian groups.

    In media, the term is often mentioned in discussions about human evolution, genetics, and the interbreeding between different human species in ancient times.

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bhawnagupta
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bhawnaguptaBeginner
Asked: 4 months agoIn: Psychology, Science

which generation can possibly provide psychoeducation to others about the …

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which generation can possibly provide psychoeducation to others about the use of technology? a. generation z b. generation y c. generation x d. baby boomers

which generation can possibly provide psychoeducation to others about the use of technology?

a. generation z

b. generation y

c. generation x

d. baby boomers

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general awarenesspsychology
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Harpreet
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HarpreetBeginner
Asked: 4 months agoIn: Physics

What is Kinetic Energy?

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What is Kinetic Energy?

What is Kinetic Energy?

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kinetic energy
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Answer
  1. Pankaj Gupta
    Pankaj Gupta Scholar
    Added an answer about 4 months ago

    Kinetic Energy is the energy that an object possesses due to its motion. It is a type of mechanical energy and depends on two factors: the mass of the object and the velocity (speed) at which it is moving. The mathematical formula for kinetic energy (KEKE) is: K.E = $\frac{1}{2}mv^{2}$ where: mm isRead more

    Kinetic Energy is the energy that an object possesses due to its motion. It is a type of mechanical energy and depends on two factors: the mass of the object and the velocity (speed) at which it is moving. The mathematical formula for kinetic energy (KEKE) is:

    K.E = $\frac{1}{2}mv^{2}$

    where:

    • mm is the mass of the object (in kilograms),
    • vv is the velocity of the object (in meters per second).

    Key Points:

    • Mass: The heavier the object, the more kinetic energy it will have at a given speed.
    • Velocity: Kinetic energy increases with the square of the velocity, meaning that even small increases in speed can lead to large increases in kinetic energy.

    Examples:

    • A moving car, a flying airplane, and a rolling ball all have kinetic energy.
    • The faster an object moves or the more massive it is, the more kinetic energy it has.
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Arshe Alam
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Arshe AlamBeginner
Asked: 4 months agoIn: Zoology

what is the role of nerve cell in human beings.

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what is the role of nerve cell in human beings.

what is the role of nerve cell in human beings.

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Answer
  1. Pankaj Gupta
    Pankaj Gupta Scholar
    Added an answer about 4 months ago

    Nerve cells, or neurons, play a critical role in the human body by serving as the fundamental units of the nervous system. Their primary function is to transmit information throughout the body, enabling communication between different parts of the body and the brain. Here's a detailed breakdown of tRead more

    Nerve cells, or neurons, play a critical role in the human body by serving as the fundamental units of the nervous system. Their primary function is to transmit information throughout the body, enabling communication between different parts of the body and the brain. Here’s a detailed breakdown of their roles:

    • Signal Transmission
      • Electrical Impulses: Neurons transmit electrical impulses, known as action potentials, which allow rapid communication within the nervous system.
      • Synaptic Transmission: Neurons communicate with each other through synapses, where chemical signals (neurotransmitters) are released to pass the signal to the next neuron.
    • Sensory Input: Neurons are responsible for receiving sensory input from the environment, such as light, sound, touch, temperature, and pain, and conveying this information to the brain for processing.
    • Motor Control
      • Motor neurons send signals from the brain and spinal cord to muscles, causing them to contract and produce movement.
      • They also help control involuntary actions like the beating of the heart and the movement of food through the digestive system.
    • Cognitive Function
      • Neurons in the brain are involved in complex functions such as thinking, memory, learning, and decision-making.
      • They form complex networks that process and store information, contributing to consciousness and cognitive abilities.
    • Autonomic Function: Neurons in the autonomic nervous system regulate involuntary functions like breathing, heart rate, blood pressure, and digestion, maintaining homeostasis in the body.
    • Reflex Actions: Neurons are crucial for reflex actions, which are rapid and involuntary responses to stimuli. Reflexes protect the body from harm by enabling quick responses without the need for conscious thought.

      Nerve cells are essential for both voluntary and involuntary actions, allowing humans to interact with and respond to their environment, control bodily functions, and engage in complex mental activities.

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