# determination of poisson ratio of bovine extraocular

### DETERMINATION OF TENSION-COMPRESSION NONLINEAR

Poisson s ratio ( p<0.0001 ν- ) from theory Poisson s ratio (ν- ) from optical measurements Figure 2. The correlation between the calculated and measured values of the apparent Poisson s ratio DISCUSSION All triphasic TCN parameters determined from this study were found to be in the same range as reported in the current literature. The

Get Price### OPTICAL AND MECHANICAL DETERMINATION OF

tests provided a direct estimation of the aggregate modulus Ha and Young s modulus and indirectly Poisson s ratio for the articular cartilage. The mean value for Poisson s ratio obtained from the optical analysis was 0.185 f 0.065 (mean If SD. n = 9).

Get Price### Poisson s ratio of bovine meniscus determined combining

Aug 22 2018 · In this study equilibrium Poisson s ratio of bovine meniscus (n = 6) was determined experimentally by combining stress-relaxation measurements in unconfined and confined compression geometries. The average Young s modulus aggregate modulus and Poisson s ratio were 0.182 ± 0.086 MPa 0.252 ± 0.089 MPa and 0.316 ± 0.040 respectively.

Get Price### Optical and mechanical determination of Poisson s ratio of

Abstract. The equilibrium stiffness of articular cartilage is controlled by flow-independent elastic properties (Young s modulus ES and Poisson s ratio v (s)) of the hydrated tissue matrix. In the current study an optical (microscopic) method has been developed for the visualization of boundaries of cylindrical bovine humeral head articular

Get Price### The coefficient of determination between NEFA and BHBA

The covariates were NEFA to BHBA ratio parity and ME305 calculated at 120 DIM. Statistical analyses were performed with SAS version 9.2. The R2 were estimated with PROC REG and risk ratios for the development 238 of any of the diseases were evaluated with Poisson regression. Results Data from 100 herds with an average of 940 cows

Get Price### Determination of Poisson s ratio of articular cartilage by

Applying the method to bovine patellar cartilage the tissue Young s modulus was found to be 1.79 /- 0.59 MPa in instantaneous response and 0.45 /- 0.26 MPa in equilibrium and the Poisson s ratio 0.503 /- 0.028 and 0.463 /- 0.073 in instantaneous and equilibrium respectively.

Get Price### Hansang KimGoogle Scholar

Determination of poisson ratio of bovine extraocular muscle by computed X-ray tomography H Kim L Yoo A Shin JL Demer BioMed research international 2013 2013

Get Price### (PDF) Determination of Poisson Ratio of Bovine Extraocular

Determination of Poisson Ratio of Bovine Extraocular Muscle by Computed X-Ray Tomography.pdf Available via license CC BY 3.0 Content may be subject to copyright.

Get Price### Biomechanics of superior oblique Z-tenotomyScienceDirect

Dec 01 2013 · H. Kim L. Yoo A. Shin J.L. DemerDetermination of poisson ratio of bovine extraocular muscle by computed X-ray tomography Biomed Res

Get Price### Collagen network primarily controls Poisson s ratio of

Poisson s ratio revealed a significant negative linear correlation (r = −0.59 p < 0.05) with the collagen content as assessed by the Fourier transform infrared imaging. Finite element analyses conducted using a fibril reinforced biphasic model indicated that the mechanical properties of the collagen network strongly affected the Poisson s

Get Price### Determination of Poisson s ratio of articular cartilage by

Applying the method to bovine patellar cartilage the tissue Young s modulus was found to be 1.79 /- 0.59 MPa in instantaneous response and 0.45 /- 0.26 MPa in equilibrium and the Poisson s ratio 0.503 /- 0.028 and 0.463 /- 0.073 in instantaneous and equilibrium respectively.

Get Price### Determination of Poisson Ratio of Bovine Extraocular

The Poisson ratio (PR) is a fundamental mechanical parameter that approximates the ratio of relative change in cross sectional area to tensile elongation. However the PR of extraocular muscle (EOM) is almost never measured because of experimental constraints. The problem was overcome by determining changes in EOM dimensions using computed X-ray tomography (CT) at microscopic resolution during tensile elo Get Price### Applications of digital image correlation to biological

Jul 01 2004 · Similar to the stiffness Poisson s ratio for the hoof horn is a function of the moisture content and the implications of this change on hoof health remain to be addressed. A typical full-field description of the axial strain distribution over the entire window of evaluation (8.5 6.4 mm ) for a tensile specimen is shown in Fig. 6 (c).

Get Price### Dr. Joseph Demer MD Ophthalmologist in Los Angeles CA

Determination of Poisson Ratio of Bovine Extraocular Muscle by Computed X-Ray Tomography. Hansang Kim Lawrence Yoo Andrew Shin Joseph L. Demer Quantitative analysis of rectus extraocular

Get Price### Micro-CT During Tensile Loading Accurate Determination of

Micro-CT During Tensile Loading Accurate Determination of the Poisson Ratio (PR) of Passive Bovine Extraocular Muscles (EOMs) You will receive an email whenever this article is corrected updated or cited in the literature.

Get Price### Publications CSCM

analysis of buckling load of glassfiber/epoxy-reinforced plywood and itstemperature dependence. determination of poisson ratio of bovine extraocular muscle by computed x-ray tomography. august 2012. effective functionalization of carbonnanotubes for bisphenol f epoxy matrixcomposites. 2012.

Get Price### Faculty Database Production Server David Geffen School

Kim Hansang Yoo Lawrence Shin Andrew Demer Joseph L Determination of poisson ratio of bovine extraocular muscle by computed X-ray tomography BioMed research international 2013

Get Price### Direct Measurement of the Poisson s Ratio of Human Patella

Mar 29 2002 · The Poisson s ratio was found to be independent of strain due to the absence of viscoelastic effects during testing. The Poisson s ratio was found to be significantly higher in the surface zone (1.87±1.11 p < 0.01) than in the middle zone (0.62±0.23) with no significant correlation of ν with age of the cartilage. In general values for

Get Price### Passive changes in muscle length Journal of Applied

May 16 2019 · Determination of poisson ratio of bovine extraocular muscle by computed X-ray tomography. BioMed Res Int 2013 197479 2013. doi 10.1155/2013/197479. Crossref PubMed Google Scholar 56. Lieber RL Leonard ME Brown CG Trestik CL. Frog semitendinosis tendon load-strain and stress-strain properties during passive loading.

Get Price### DETERMINATION OF TENSION-COMPRESSION NONLINEAR

Poisson s ratio ( p<0.0001 ν- ) from theory Poisson s ratio (ν- ) from optical measurements Figure 2. The correlation between the calculated and measured values of the apparent Poisson s ratio DISCUSSION All triphasic TCN parameters determined from this study were found to be in the same range as reported in the current literature. The

Get Price### Hansang KimGoogle Scholar

Determination of poisson ratio of bovine extraocular muscle by computed X-ray tomography H Kim L Yoo A Shin JL Demer BioMed research international 2013 2013

Get Price### Determination of Poisson s Ratio of Articular Cartilage by

May 04 2004 · Applying the method to bovine patellar cartilage the tissue s Young s modulus was found to be 1.79 ± 0.59 MPa in instantaneous response and 0.45 ± 0.26 MPa in equilibrium and the Poisson s ratio 0.503 ± 0.028 and 0.463 ± 0.073 in instantaneous and equilibrium respectively. The equilibrium Poisson s ratio obtained in our work was

Get Price### CiteSeerX — PII 21-92 (96 13 9 OPTICAL AND MECHANICAL

The mean value for Poisson s ratio obtained from the optical analysis was 0.185 f 0.065 (mean If SD. n = 9). Values of elastic parameters obtained from the mechanical tests were 0.754 0.198 MPa 0.677 k 0.223 MPa and 0.174 f 0.106 for Ha Es. and zis respectively (mean k S.D. n = 7).

Get Price### Estimation of the mechanical properties of the eye through

Sep 18 2017 · For the corneo-scleral layer of model A we have chosen an average value for the Young s modulus and Poisson ratio of E s c = 15 MPa and σ s c = 0.42 respectively. For model B we keep the same Poisson ratio as in model A (σ c = σ s = 0.42) but modify the Young s modulus and the thickness of the cornea (CCT) and of the sclera (ST).

Get Price### Compartmentalization of extraocular muscle function Eye

Oct 24 2014 · Quantitative analysis of the structure of the human extraocular muscle pulley system. Invest Ophthalmol Vis Sci 2002 43 2923–2932. PubMed Google Scholar

Get Price### Direct Measurement of the Poisson s Ratio of Human Patella

Mar 29 2002 · The Poisson s ratio was found to be independent of strain due to the absence of viscoelastic effects during testing. The Poisson s ratio was found to be significantly higher in the surface zone (1.87±1.11 p < 0.01) than in the middle zone (0.62±0.23) with no significant correlation of ν with age of the cartilage. In general values for

Get Price### Determination of poisson ratio of bovine extraocular

Dec 30 2012 · Determination of poisson ratio of bovine extraocular muscle by computed X-ray tomography. Hansang Kim Department of Mechanical and Automotive Engineering Gachon University Seongnam-Si Gyeonggi-do Republic of Korea.

Get Price