Calculation of optimum specimen weight in the large-droplet method

1996 ◽  
Vol 35 (7-8) ◽  
pp. 375-377
Author(s):  
B. B. Bogatyrenko
Keyword(s):  
Large Droplet ◽  
Specimen Weight ◽  
Optimum Specimen ◽  
Droplet Method

EFFECTS OF AIR ON SPLASHING DURING A LARGE DROPLET IMPACT: EXPERIMENTAL AND NUMERICAL INVESTIGATIONS

2006 ◽  
Vol 16 (8) ◽  
pp. 981-996 ◽  
Author(s):  
Richard A. Jepsen ◽  
Sam S. Yoon ◽  
Byron Demosthenous
Keyword(s):  
Droplet Impact ◽  
Large Droplet ◽  
Numerical Investigations

scholarly journals The Comparison of Breast Reconstruction Using Two Types of Acellular Dermal Matrix after Breast-Conserving Surgery

2021 ◽  
Vol 10 (15) ◽  
pp. 3430
Author(s):  
Jeongshin An ◽  
Hyungju Kwon ◽  
Woosung Lim ◽  
Byung-In Moon ◽  
Nam Sun Paik
Keyword(s):  
Breast Cancer ◽  
Breast Reconstruction ◽  
Acellular Dermal Matrix ◽  
Breast Conserving Surgery ◽  
The Body ◽  
Surgical Time ◽  
Dermal Matrix ◽  
Specimen Weight ◽  
Breast Shape ◽  
Acellular Dermal

Breast reconstruction during breast-conserving surgery (BCS) can improve the breast shape. This study introduces breast reconstruction in BCS with two types of acellular dermal matrix (ADM). The study included 134 patients who underwent BCS due to breast cancer from February 2018 to May 2021. This study was conducted by one surgeon, and is the result of a three-year study. The patient group who underwent BCS using ADM was mainly targeted at patients with minor to severe defects after the operation. The average age of the patients was 51.8 years, and the body mass index (BMI) was 23.8 kg/m. The specimen weight was 30–120 g. The average surgical time, including reconstruction, was 100.4 min, combined with reconstruction. There were minor complications in six patients. The advantage of using ADM is that it can quickly correct the shape of the breast after conventional BCS surgery. Pellet-type ADM, rather than sheet-type, can create a breast shape similar to that before surgery. Breast reconstruction using ADM can be an easy and convenient method for making a better shape from BCS.

Inflight icing data gathering during routine flight operations — a case study

2001 ◽  
Vol 105 (1051) ◽  
pp. 501-516 ◽  
Author(s):  
A. P. Brown
Keyword(s):  
Data Gathering ◽  
Winter Season ◽  
Leading Edge ◽  
General Aviation ◽  
Data Sets ◽  
Large Droplet ◽  
Event Data ◽  
Flight Operations ◽  
Lower Corner

Abstract For the purpose of the design and certification of inflight icing protection systems for transport and general aviation aircraft, the eventual re-definition/expansion of the icing environment of FAR 25/JAR 25, Appendix C is under consideration. Such a re-definition will be aided by gathering as much inflight icing event data as reasonably possible, from widely-different geographic locations. The results of a 12-month pilot programme of icing event data gathering are presented. Using non-instrumented turboprop aircraft flying upon mid-altitude routine air transport operations, the programme has gathered observational data from across the British Isles and central France. By observing a number of metrics, notably windscreen lower-corner ice impingement limits, against an opposing corner vortex-flow, supported by wing leading edge impingement limits, the observed icing events have been classified as ‘small’, ‘medium’ or ‘large’ droplet. Using the guidance of droplet trajectory modelling, MVD values for the three droplet size bins have been conjectured to be 15, 40 and 80mm. Hence, the ‘large’ droplet category would be in exceedance of FAR/JAR 25, Appendix C. Data sets of 117 winter-season and 55 summer-season icing events have been statistically analysed. As defined above, the data sets include 11 winter and five summer large droplet icing encounters. Icing events included ‘sandpaper’ icing from short-duration ‘large’ droplets, and a singular ridge formation icing event in ‘large’ droplet. The frequency of ‘large’ droplet icing events amounted to 1 in 20 flight hours in winter and 1 in 35 flight hours in summer. These figures reflect ‘large’ droplet icing encounter probabilities perhaps substantially greater than previously considered. The ‘large’ droplet events were quite localised, mean scale-size being about 6nm.

Biological Variation in Urinary Excretion of Pyridinium Crosslinks: Recommendations for the Optimum Specimen

1996 ◽  
Vol 33 (1) ◽  
pp. 36-42 ◽  
Author(s):  
M Panteghini ◽  
F Pagani
Keyword(s):  
Early Morning ◽  
Reference Intervals ◽  
Biological Variation ◽  
Creatinine Ratio ◽  
Pyridinium Crosslinks ◽  
Number Of Patients ◽  
Analytical Imprecision ◽  
Optimum Specimen ◽  
The Difference ◽  
Urine Specimens

We assessed the analytical and biological variation of pyridinium crosslinks in early morning, 2 h fasting, and 24 h urine specimens from 14 healthy adults over a 1 month period. The results were expressed both in terms of pyridinoline concentration and pyridinoline/creatinine ratio. The data obtained were used to select the optimum specimen for clinical purposes. We found that: ( a) early morning specimens are preferred; ( b) results should be expressed as pyridinoline/creatinine ratio; ( c) reference intervals should be stratified according to gender; ( d) the necessary analytical imprecision (CV≤ 9%), derived from biological variation, is not easily achieved by current methods; ( e) the difference between serial results from an individual must be > 50% to be statistically significant; and ( f) assessment of risk for osteoporotic fracture by means of the pyridinium crosslink assay would, in a significant number of patients, require analysis of multiple urine specimens.

A Preliminary Study of Inter-Facility LWC Differences in Appendix C and Supercooled Large Droplet Conditions due to Calibration Instruments

2021 ◽  
Author(s):  
Laura-Cheri King-Steen ◽  
John W. Strapp ◽  
David Orchard ◽  
Judith F. Van Zante ◽  
Alexei Korolev ◽  
...  
Keyword(s):  
Large Droplet ◽  
Preliminary Study
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