织物手绘技术

织物手绘是属于工艺美术的范畴。虽然它有着比织物印花更为悠久的历史,但是该工艺因各种印花技术的发展已渐渐地被淘汰了。近几十年来,在一些工业发达的国家里,该工艺不断采用现代化的染化料,以及应用各种各样的技术和新奇的艺术效果,改变了手绘技术原始落后的面貌,使其能有一种印制技术无法达到的效果。这一古老的技术,在新的环境下产生了新的生命。     

织物手绘技术

2.线条的练习。线条是组成一幅图案十分重要的手段。我们开始练习的时候,可以徒手拉出各种直线,线条要粗细匀净,干湿大致相同,再利用直尺的帮助,拉出一组组比较挺直的线条。当直线画熟练后,就可试画曲线,要画出各种自由的曲线、各种平行的曲线、各种渐变的曲线。这些技巧看起来     

在产妇中应用心理护理的方法

目的 观察心理护理在产妇中应用的临床效果.方法 护理组100例,入院前后至分娩全过程运用心理护理;对照组100例,采用常规护理.结果 护理组产后出血量和产程时间分别为100mL和(7～9)h,对组照产后出血量和产程时间分别为140mL和(11～13)h.结论 在产妇中应用心理护理的方法可缩短产程,减少产后出血量,提高产科分娩质量.     

A STUDY ON SUPERCRITICAL FLUID EXTRACTION OF L-PROLINE

The extraction of L-proline from the fermentation broth filtrate with the supercritical fluid was studied. It has been proved that L-proline and most amino acids are hardly dissolved in the pure supercritical carbon dioxide fluid. When the methyl alcohol was added as an entrainer in L-proline solution or carbon dioxide fluid, the solubility of L-proline in the supercritical fluid would be greatly increased, but ethyl alcohol was unsatisfactory as an entrainer.The influences of extraction pressure, temperature, time, flow rate of fluid, concentrations of L-proline and entrainer on the yield of L-proline have been investigated for searching the optimal extraction conditions.