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Related Concept Videos

Wedges01:24

Wedges

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A wedge is a simple machine that serves various purposes, such as adjusting the elevation of structural or mechanical parts, providing stability for heavy objects, and splitting a body into two parts. This versatile tool can amplify an applied force, making it easier to manipulate large or heavy objects.
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Lift01:23

Lift

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Lift is a fundamental aerodynamic force that acts perpendicular to the direction of airflow. It plays a central role in achieving and sustaining flight and in stabilizing various vehicles. Lift primarily originates from pressure differences created across surfaces, such as an airfoil. A lower pressure region forms above the wing, while a higher pressure region forms below it, generating an upward force. This differential results from the shape and orientation of the airfoil, enabling the wing...
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Two-Dimensional Force System: Problem Solving01:29

Two-Dimensional Force System: Problem Solving

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Solving problems related to two-dimensional force systems is an essential aspect of mechanics and engineering. By applying the principles of vector analysis and force equilibrium, one can determine the effect of multiple forces acting on an object in a two-dimensional space.
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
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Unsymmetric Loading of Thin-Walled Members: Problem Solving01:07

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The shear center of a channel section with uniform thickness, height, and width, is determined by computing the shear force in the member and calculating the moments of inertia of the sections.
To compute the shear forces, find the shear flow at a specific distance from the endpoint using the vertical shear and the moment of inertia values. The total shear force on the flange is calculated by integrating the shear flow from one end of the flange to the other.
Next, calculate the moments of...
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Method of Sections: Problem Solving I01:27

Method of Sections: Problem Solving I

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Consider a symmetrical roof truss structure, composed of vertical, diagonal, and horizontal members. The length of each horizontal member is 4 m. The lengths of the vertical members FB and HD are 4 m, while the length of member GC is 6 m. The loads acting at joints F, G, and H are 2 kN, while those at joints A and E are 1 kN.
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Machines: Problem Solving II01:30

Machines: Problem Solving II

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Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. Consider a lifting tong carrying a 100 kg load. It comprises movable sections DAF and CBG linked together with member AB.
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A Simplified Algorithm for Corner Lip Lifting.

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Summary
This summary is machine-generated.

This study simplifies corner lip lifting (cheiloplasty) for better lateral lip appearance. The new guidelines improve vermilion deficiency, philtral hooding, and angular depression, offering enhanced facial aesthetics.

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Area of Science:

  • Plastic Surgery
  • Cosmetic Surgery
  • Facial Aesthetics

Background:

  • Cosmetic cheiloplasty techniques have evolved, yet patient-specific tailoring and candidate selection remain challenging.
  • Lateral lip deficiencies, including vermilion deficiency, philtral hooding, and angular depression, impact facial aesthetics.
  • Aging contributes to lip ptosis and altered facial proportions.

Purpose of the Study:

  • To present a simplified guideline for corner lip lifting (cheiloplasty).
  • To optimize vermilion exposure, elevate the chelion, and improve overall facial character.
  • To provide a versatile approach for various degrees of lateral lip deficiencies in different age groups.

Main Methods:

  • Utilized anatomical mapping based on relaxed skin tension lines and the Diagonal ("D") line.
  • Introduced three types of corner lip lifts (1, 2a, 2b) for varying deficiencies.
  • Incorporated considerations for dental influences and aging-related ptosis, with specific endpoints and pitfalls.

Main Results:

  • Procedures effectively restore lateral lip aesthetics and balance stomion and chelion positions.
  • Aging-related changes in the lips were ameliorated.
  • The Cupid Lift® algorithm allows combination with subnasal lip lifts.

Conclusions:

  • The presented guidelines offer a streamlined framework for corner lip lifting.
  • This approach enhances patient outcomes in facial rejuvenation and aesthetic harmony.
  • The techniques are versatile for practitioners treating diverse lip aesthetic concerns.