论文部分内容阅读
浅谈图书馆流通工作的计算机管理
【机 构】
:
中山大学图书馆
【出 处】
:
高校文献信息学刊
【发表日期】
:
1998年1期
其他文献
鉴于水质污染的日益严重和水质监测需求的增加,国家规定了多个水质污染物含量的标准,广泛应用的水质参数主要有两类:一类是直接反映水中的具体成分,如金属离子的浓度等;另一类称为
INVESTIGATIONS ON NANOMETER-SIZED ULTRAMICRO-ELECTRODES(Ⅱ)—FABRICATION, CHARACTERIZATION OF CARBON F
Described here are the fabrication and characterization of carbon fiber cylinder ultramicroelectrodes with cylinder length of less than 100 am, total tip diamet
It is reported in this paper a polarographic catalytic double wave of oxygen reductioncaused by diphenylamine compounds(diphs).The electrochemical process of the
A quasi-reversible reduction peak of a fentanyl derivative DNPME is found by cyclic voltammetry at Hg electrode. E<sub>pc</sub>=-1.58 V (vs. Ag/AgCl). The cathodi
α-Oxoketene dithioacetals 2 via, 1,2-nucleophilic addition by allyl magnesium bromide afforded corresponding alcohols (3).Treated with water and catalyzed by L
Synthesis and surface active properties of the oxyethylenated fatty alcohol 2-hydroxypropyl sulfonates wereinvestigated.Of all surface active compounds studied,
“引领生态文明,建设高水平林业大学”,这是北京林业大学在刚刚结束的学习实践科学发展观活动中确定的总目标。近年来,北林大这所绿色学府以推动和引领我国生态环境和林业建设为
The present paper covers the synthesis of ZSM-35 molecular sieve with1,6-hexanediamine as templating agent,the influence of the synthesis conditions,and a discu