美 英 un.转化率 英汉 un. 1. 转化率
The degree of conversion of organic matter can be measured by the conversion rate of organic matter in hydrocarbon source rocks in the sequence from low maturity to high maturity, which is usually referred to as the transformation ratio of organic matter— that is, TRHI. ...
The degree of conversion (DC) and monomer leaching of three experimental urethane dimethacrylate (UEDMA)-hydroxypropyl methacrylate (HPMA)-based resin systems were studied. Three experimental resins (E1: 70.6 wt% UEDMA + 27.4 wt% HPMA, E2: 80.6 wt% UEDMA + 17.4 wt% HPMA, E3: 90.6 wt% ...
摘要: Objective:This study evaluated the glass transition temperature (Tg) and degree of conversion (DC) of a light-cured (Fill Magic) versus a chemically cured (Concise) orthodontic composite.关键词: Orthodontic composite, Glass transition temperature, Degree of conversion, Mechanical spectroscopy, ...
the influences of irradiation time and irradiation direction was investigated on the degree of conversion(DC)of light-curing resins under the brackets by using FT-IR method.In the irradiation for 10sec., the resins showed uneven DC.Prolonged irradiation increased DC of resins and constant DC was...
The degree of conversion of alpha-keto acids to valine and phenylalanine in health and uraemia. A.; Purkiss P.; Ell S.; Bergstrom J.; Furst P.; Neuhauser M.; Richards P.: The degree of conversion of alpha-keto acids to valine and phenylalanine in health and uraemia. Q. n. Med. ...
Aim: The aim of this study is to evaluate the influence of different combinations of irradiance and exposure time for a given radiant exposure on the degree of conversion (DC) and on the mechanical properties of two resin composites: Filtek Z250 and Filtek P90 LS (3M ESPE). Materials and ...
The results obtained were then fitted by a non-linear least square method to a rational function, which permitted the accurate calculation of the limiting degree of conversion. The latter was found to increase in the order Bis-GMA<Bis-EMA<UDMA<TEGDMA. This trend is discussed in connection ...
Bonding substances had no statistically significant influence on the cytotoxicity of composite materials ( p = 0.159). A highly significant statistical reduction in the degree of conversion for each resin cured under air inhibition conditions was documented ( p < 0.01). Our study demonstrates that ...