Results 21 to 30 of about 152,714 (315)

An Exact Formula for Calculating Inverse Radial Lens Distortions

open access: yesSensors, 2016
This article presents a new approach to calculating the inverse of radial distortions. The method presented here provides a model of reverse radial distortion, currently modeled by a polynomial expression, that proposes another polynomial expression ...
Pierre Drap, Julien Lefèvre
doaj   +1 more source

The feasibility analysis of calculating proptosis by simple Heron's formula.

open access: yesPLoS ONE, 2020
PurposeWe propose a new method to calculate proptosis by using the simple Heron's formula and analyze its feasibility.MethodIt was a none-inferiority trial. The registration number was ChiCTR1900026490.
Weili Zhang   +3 more
doaj   +1 more source

Calculating intraocular lens power in anterior megalophthalmos: A case report

open access: yesFrontiers in Medicine, 2022
IntroductionWe report a case of a man with cataract and anterior megalophthalmos (AM), in which some myopia was retained when calculating intraocular lens (IOL) power using the Haigis formula to avoid postoperative farsightedness.Case descriptionA 59 ...
Jiancheng Mu   +3 more
doaj   +1 more source

Prime Numbers Calculation Formulas

open access: yesTheoretical Mathematics & Applications, 2021
The application of prime numbers in modern science, especially in computer science, is very wide. Since prime numbers can only divisible by 1 and themselves, they are not factored any further like whole numbers. The problem to calculate all prime numbers using a formula posed for long periods.
openaire   +1 more source

Calculation of Nonlinear Stiffness of Rubber Pad under Different Temperatures and Prepressures

open access: yesShock and Vibration, 2020
The static stiffness of rubber springs is affected by temperature and prepressure. In this thesis, the relationship between Young’s modulus and temperature of rubber was studied, and the quantitative relationship between them was determined.
Chuanbo Xu   +3 more
doaj   +1 more source

Contact pressure analysis of pin-loaded lug with clearance

open access: yesAdvances in Mechanical Engineering, 2022
In engineering design, none of the existing models for calculating the contact pressure in pin-loaded lug is fully compatible with the actual working conditions.
Yanmin Li   +3 more
doaj   +1 more source

Exploration and Practice of a New Formula for Calculating the Degree of Freedom

open access: yesMATEC Web of Conferences, 2018
The current “structural mechanics” in the textbook, the more sub items in the formula of calculating degrees of freedom, is not conducive for the students to master the understanding and calculation of degree of freedom concept.
Yangxiaochi
doaj   +1 more source

The Fourth Hybrid Power Mean Involving the Character Sums and Exponential Sums

open access: yesMathematics
In this paper, we consider the fourth hybrid power mean involving two-term exponential sums and third-order character sum modulo p, a topic of significant importance in analytic number theory.
Guohui Chen, Tingting Du
doaj   +1 more source

Statistical Divergences between Densities of Truncated Exponential Families with Nested Supports: Duo Bregman and Duo Jensen Divergences

open access: yesEntropy, 2022
By calculating the Kullback–Leibler divergence between two probability measures belonging to different exponential families dominated by the same measure, we obtain a formula that generalizes the ordinary Fenchel–Young divergence.
Frank Nielsen
doaj   +1 more source

GENERAL PHYSICS FORMULA CALCULATIONS

open access: yes, 2023
In this paper, the calculation of general physics formulas is crucial in mechanics, thermodynamics, electricity and magnetism, quantum mechanics, optics and waves, and their practical applications are considered infinite.
openaire   +1 more source

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