A Chronic Uremic Patient With Coagulopathy Induced by Vitamin K Deficiency

Kijima, Yoshimaro; Ozawa, Kiyoshi; Sakurai, Shogo; Nakayama, Isao; Shoji, Takao; Sasaoka, Taro

doi:10.2169/naika.72.345

Cited by 1 publication

(2 citation statements)

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“…where w is the blade width, d is a cutting depth from the surface of test specimen, and j is a shear angle defined as tan -1 (F H /F v )/2 [14]. The cutting blade with 0.5 mm width was used with a horizontal moving speed of 1.0 mm/s and a vertical moving speed of 0.1 mm/s to keep a stable cutting condition.…”

Section: K Imax Of Weld-linementioning

confidence: 99%

“…Although there have been many studies about the measurement of interfacial strength, it is still difficult to measure it at microscale. In recent years, SAICAS (Surface and Interfacial Cutting Analysis System) has been developed and applied to various researches with its ability of microscale cutting near the surface and interface [14]. This method is considered to be effective as a quantitative measurement of the characteristics on microscale.…”

Section: Introductionmentioning

confidence: 99%

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Effect of molecular weight and molecular weight distribution on weld‐line interface in injection‐molded polypropylene

Yokomizo¹,

Banno²,

Yoshikawa

et al. 2013

Polymer Engineering & Sci

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Microstructure of weld‐lines in injection‐molded polypropylene was characterized using polarized laser Raman spectroscopy, micro‐cutting analysis, and fracture testing. A coarse‐grained molecular dynamics simulation was conducted to understand the structure–property relationship. The effect of molecular weight and molecular weight distribution on the weld‐line structure and mechanical properties were investigated. Property reductions induced by weld‐lines were evaluated by the double‐edge‐notched tensile method as a property ratio for a stress intensity factor of welded specimen to nonwelded one. It was revealed that the significant reduction induced by the weld‐line was caused by increasing molecular weight or broadening molecular weight distribution. Using polarized laser Raman spectroscopy, it was observed that molecular orientation in the weld‐line was not a dominant cause of the property reduction within these materials. The micro‐cutting analysis revealed that the property reduction was closely related to the reduction of the shear strength observed in the area below the surface V‐notch. Based on the coarse‐grained molecular dynamics simulation, the reduction of the mechanical property in broader molecular weight distribution polypropylene was considered to be responsible for a lack of entanglement owing to the chain segregation of low‐molecular‐weight molecules in the weld‐line interface. POLYM. ENG. SCI., 53:2336–2344, 2013. © 2013 Society of Plastics Engineers

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Section: K Imax Of Weld-linementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%