Synthesis and biological evaluation of some new sulfur-containing heterocycles as possible antifungal agents [0.03%]
一些具有抗真菌活性的杂环硫化物的合成与生物活性评价
M A Hanna,M N Khodeir,M A Mashaly et al.
M A Hanna et al.
Some novel sulfonate ester-containing mono-, bi- and tricyclic fused ring systems (IV, Xa,b, XIa,b, XIV and XV) together with their precursors I, II and III were synthesized with a view to evaluating their efficacy as new sulfur-containing ...
K D Goggin,P D Hammen,K L Knutson et al.
K D Goggin et al.
A detailed commercial process for the synthesis and purification of the activated disaccharide, alpha-D-cellobiosyl bromide heptaacetate (1) was developed. Reaction of alpha-D-cellobiose octaacetate (CBO) with HBr in glacial acetic acid or ...
Evaluation of the performance of immobilized enzyme reactors with Michaelis-Menten kinetics [0.03%]
基于米氏动力学的固定化酶反应器性能评估
R Lortie
R Lortie
Two dimensionless models, taking into account the external mass-transfer, are used to characterize and compare the behaviour of plug flow reactors (PFR) and continuous stirred tank reactors (CSTR). These models need only two parameters, the...
Effects of the seed sludge on the performance of UASB reactors for treatment of toxic wastewater [0.03%]
种泥对厌氧反应器处理有毒工业废水启动性能的影响研究
D Peng,X Zhang,Q Jin et al.
D Peng et al.
A comparative study of different sludges (anaerobic sewage sludge and anaerobic sewage sludge cultivated for 30 days) as the seed of UASB reactors for treatment of synthetic resin production wastewater was carried out on a laboratory scale....
Immobilization of chitinase on a reversibly soluble-insoluble polymer for chitin hydrolysis [0.03%]
一种可逆溶胀聚合物对几丁质酶的固定化及其水解性能研究
J P Chen,K C Chang
J P Chen
Serratia marcescens chitinase was immobilized by covalent binding to a polymer (hydroxypropyl methylcellulose acetate succinate, AS-L) showing reversibly soluble-insoluble characteristics with pH change. The immobilized enzyme (CH-AS) was s...
Extractive membrane bioreactors: a new process technology for detoxifying chemical industry wastewaters [0.03%]
用于净化化工行业废水的新过程技术：提取式膜生物反应器
A G Livingston
A G Livingston
This paper describes an extractive membrane bioreactor developed to extract and biodegrade toxic organic pollutants present in chemical industry wastewaters. The technology is applicable to wastewaters emanating in organic synthesis operati...
Penicillin G extraction from model media using an emulsion liquid membrane: determination of optimum extraction conditions [0.03%]
以模拟介质中青霉素G的液膜萃取及其最佳条件确定
K H Lee,S C Lee,W K Lee
K H Lee
Penicillin G extraction by an emulsion liquid membrane (ELM) was investigated. The effects of surfactants, diluents, and carrier mixtures, together with their combined effects on the initial extraction rate and the emulsion stability were e...
Penicillin G extraction from model media using an emulsion liquid membrane: a theoretical model of product decomposition [0.03%]
青霉素G从模型培养基中提取的理论模型及产物分解研究
K H Lee,S C Lee,W K Lee
K H Lee
To confirm the applicability for the extraction of penicillin G by an emulsion liquid membrane (ELM), the degree of decomposition of penicillin G during extraction was theoretically calculated. Decomposition was less than 1% provided that t...
The tularaemia vaccine [0.03%]
土拉伦疫苗
G Sandström
G Sandström
Tularaemia is a disease caused by the facultative intracellular bacterium Francisella tularensis. Vaccination resulting in protective immunity is induced by live vaccine only. Such vaccination can be performed by scarification utilizing the...
Residence time distribution in a packed bed bioreactor containing porous glass particles: influence of the presence of immobilized cells [0.03%]
固定床生物反应器中含有多孔玻璃颗粒的停留时间分布： immobilized细胞的存在影响
L De Backer,G Baron
L De Backer
An experimental investigation of the liquid phase residence time distribution (RTD) in a packed bed bioreactor containing porous glass particles is presented. For Re < 1, intraparticle forced convection is negligible and only diffusion, cha...