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1. chinaXiv:201902.00015 [pdf]

木聚糖酶异源表达的研究进展

李吉萍; 张斯童; 包昌杰; 陈光
Subjects: Biology >> Bioengineering

摘要:木聚糖(Xylan)在自然界中的含量极其丰富,在农作物和农林剩余物中大量存在。随着能源资源问题的日益凸显,对木聚糖的应用和研究越来越受到重视。木聚糖酶(Xylanase)是可以将木聚糖降解为低聚木糖和木糖的一类水解酶,近年来,为了实现木聚糖酶的高产、高酶活表达,科研工作者做了大量的研究工作,本文将就木聚糖酶异源表达(Heterologous expression)的研究进展进行综述。 关键词:木聚糖;木聚糖酶;异源表达

submitted time 2019-02-13 From cooperative journals:《中国生物工程杂志》 Hits21291Downloads1200 Comment 0

2. chinaXiv:201804.00001 [pdf]

T-Area-Marker for Scientific Images

陈光; 郭春芳
Subjects: Medicine, Pharmacy >> Other Disciplines of Medicine and Pharmacology
Subjects: Computer Science >> Integration Theory of Computer Science

Labeled images are one of the most important means of scientific communication and education. However, traditional markers (arrows, lines) are point markers; do not include information about how large the feature is. We designed an efficient marker system for labeling scientific images (electron or light microscopy, CT, MRI, ultrasonography, camera pictures, etc), called the “T Area Marker, (TAM)”. The basic TAM marker looks like a “T”, composed of a line segment and a small tick on one end; it defines an imagined circle that stands on the tickless end and the diameter of the circle is equal to the length of the line segment. Thus the TAM can define an exact area rather than a single point; and the imagined circle does not break the continuity of the image (unlike traditional visible circles, rectangles, etc). A TAM with N ticks (N>1) means the diameter equals to N times the length of TAM. A TAM may also have a tail and/or several tail branches to define translation of the imagined circle, thus define complicated areas. tAreaMarker.py is free software that combines the drawing and reading of TAMs, although in most cases TAMs are easily interpreted without computer assistance.

submitted time 2018-03-31 Hits2046Downloads957 Comment 0

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