نتایج جستجو برای: joint numerical range
تعداد نتایج: 1144307 فیلتر نتایج به سال:
Simultaneous mid third clavicle fracture and acromioclavicular joint dislocation is a rare combination injury, as a result of high-energy trauma. We report a patient with a middle third clavicle fracture and ipsilateral grade three-acromioclavicular joint dislocation, which is a rare combination. The patient wanted to get back to work as soon as possible, so the fracture was fixed with recons...
in this paper, we study the estimation problems for the two-parameter exponentiated gumbel distribution based on lower record values. an exact confidence interval and an exact joint confidence region for the parameters are constructed. a simulation study is conducted to study the performance of the proposed confidence interval and region. finally, a numerical example with real data set is given...
The multiplicity of a point in the joint numerical range W (A1, A2, A3) ⊆ R is studied for n×n Hermitian matrices A1, A2, A3. The relative interior points of W (A1, A2, A3) have multiplicity greater than or equal to n−2. The lower bound n−2 is best possible. Extreme points and sharp points are studied. Similar study is given to the convex set V (A) := {xT Ax : x ∈ R, x x = 1} ⊆ C, where A ∈ Cn×...
Introduction: Frozen shoulder syndrome (FSS) is a common shoulder disease that causes pain and has progressive loss of shoulder motion. Codman's pendulum exercises are commonly prescribed after a shoulder injury to provide early joint mobilization, increase the flow of nutrients into the joint space, and decrease pain. This study aimed to compare the effect of Cadman's exercises and scapular rh...
Abstract Background: The goal of this report is to show our results with extension block technique for treatment of mallet fracture. The indications for this technique were the presence of a large bone fragment, and palmar subluxation. Methods: We retrospectively assessed the results of treatment in 14 mallet fractures which have been treated by extension block technique to determine the ra...
Correct estimation of water inflow into underground excavations can decrease safety risks and associated costs. Researchers have proposed different methods to asses this value. It has been proved that water transmissivity of a rock joint is a function of factors, such as normal stress, joint roughness and its size and water pressure therefore, a laboratory setup was proposed to quantitatively m...
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