20个荷花品种花粉活力测定及贮藏研究

为研究荷花花粉的生活力,选择了20个荷花品种分别用TTC染色法、亚甲基蓝染色法和离体萌发法测定了花粉的染色率和萌发率,并研究了不同温度贮藏条件对花粉生活力的影响.结果表明,亚甲基蓝染色法不能作为荷花花粉生活力的测定方法,离体萌发法结果更直观和准确;20个荷花品种间的离体萌发率差异明显,最高为13.1%,最低为0;不同品种在三种贮藏温度下萌发率变化趋势相同,4℃条件下贮藏较有利于荷花花粉生活力的保持.     

Relationship between Cellulase Treatment and Dyeing Properties of Cotton Fabrics

In our current study, effects of cellulose treatment on dyeing properties of cotton fabrics were investigated. Inhibitory effects of dyes both on the fabric substrate and in the treatment bath on celluiase catalytic effectiveness were also studied.     

The Study of Top Dyeing Damage by Bundle Tensile Testing

It is well known that top dyeing is an Important step in wool processing, but it will result in the damage of fibre in normal dyeing. How to measure the damage quickly and to evaluate it quantitatively are vital important for wool industry and also interested for wool researchers. For the purpose, nineteen tops dyed in normal condition from three wool textile mills in China were tested with TENSOR, a bundle fibre tensile tester. The experimental results showed that the dyeing damage rate of bundle strength of these tops is 6% - 7% in average and some tops were higher than 10% dyeing damage. Meanwhile, the dyeing damages for different wool mills were discussed . It is obvious that bundle tensile test is an efficient and quick method to evaluate the damage caused by top dyeing and to identify the difference between wool mills in quality and quantity.     

煤矸石及硫酸渣研制PSAAF及应用研究

研究利用煤矸石及硫铁矿烧渣作原料制备PSAAF并用于印染废水的处理结果表明,PSAAF有良好的除浊、脱色和除COD性能;尤其对亲水性染料,具有独特的去除效果对pH为6～9的实际废水,PSAAF的脱色率和COD去除率比常规絮凝剂均提高30%～40%PSAAF的脱色机理是水合铝、铁离子的凝聚作用和聚硅酸的絮凝而产生的共沉淀图8,表1,参12     

修正的基团染色指数用于酮、醚和酯类化合物沸点的拓扑研究

在分子拓扑理论的基础上,提出了一个修正的基团染色指数^mL,运用定量结构-性质相关技术研究了91种酮类、醚类和酯类化合物分子的沸点与分子结构问的定量关系．通过多元回归的方法建立了^mL与沸点的定量结构-性质相关模型,估算值与实验值较为吻合．利用模型对另外一些分子的沸点进行预测,较为有效.     

干热岩钻探关键技术及进展

 干热岩资源是一种储量巨大的可再生清洁能源,开采干热岩资源的方法是钻开储层、建立增强型地热系统(EGS)。干热岩地层通常为火成岩,研磨性强、可钻性差,温度高于200℃,对钻探工艺、设备、材料要求极高。本文在分析干热岩高温钻探特点和难点的基础上,介绍了高温钻井液、井下钻具、高温井控、火山岩压裂、分布式测温等关键技术及其进展,提出了中国干热岩高温钻探技术研究的重点和方向。     

NiFe2O4合成工艺对惰性阳极力学性能及电导率的影响

研究以NiO和Fe2O3为主要原料合成镍铁尖晶石反应烧结过程中的热力学条件·同时对在不同烧结条件下合成的尖晶石二次烧结制备的阳极试样的抗弯强度及高温电导率进行了测量·结果表明:NiO和Fe2O3固相反应的热力学条件具备,反应先于致密化过程结束·当未经压制成型的粉料直接在合成温度为900℃下合成6h,经破碎工艺及二次烧结后,所制得的惰性阳极试样强度及电导率最大,烧结性能最好·而破碎工艺对增加粉末活性,提高试样电导率及力学性能也十分重要·     

基于LS-SVM的棉针织物染色上染率模型的研究

针对棉针织物染色上染率建模中存在非线性建模困难及预测精度不高等问题,结合棉针织物的染色机理,基于最小二乘支持向量机(LS-SVM)建立上染率模型并进行预测.将提出的方法与BP神经网络法进行比较,试验结果表明前者具有更高的预测精度,验证了LS-SVM对织物染色上染率预测建模是一种可行而有效的方法.     

Preparation of Latex Film with Macropores and Their Applications in Pigment Dyeing

Aiming at improving the permeability of the pigment dyed fabrics,two kinds of hydrophilic polymers(polyvinyl pyrrolidone(PVP),and polyethylene glycol(PEG)were fed into the styrene-butyl acrylate(St-BuA)copolymer latex binder respectively to prepare films with macropores.The effects of the post-added polymers on the latex film formation process and film structures were studied and the performance of the dyed fabrics was evaluated.It was found that the drying process could still be divided into three stages even after the addition of PVP and PEG.And the water evaporation rate during the first and last stage remained the same as usual.However,after the addition of PVP,the onset of the second stage was delayed to high volume fraction,and PVP formed into spherical dispersion phase with 300 nm in diameter.It provided a great deal of interface between the latex polymer and the PVP phase,which led to an increase in the water evaporation rate during the second stage.A different case was found after the feeding of PEG.Firstly,the first stage ended at low volume fraction and a decreased evaporation rate was observed in the second stage.Secondly,the PEG dispersion appeared as finger-like structure in the transmission electron microscopy(TEM)images with 9μm in length.After rinsing,pores were found only in the films formerly containing PVP or PEG,and the shapes and the sizes were closely correlated with the initial morphologies of the PVP or PEG domains.However,the shade of color,the abrasion fastness,and the permeability of the dyed fabric were independent of the type of the post-added hydrophilic polymer.     

基于非线性超声的混凝土高温损伤研究

在高温作用下,混凝土内部会发生物理和化学反应,引起材料的力学性能改变,影响混凝土的安全性能。文章对混凝土在不同高温受热温度和受热时间阶段下的力学性能进行测量试验,研究了混凝土高温损伤下超声波波速和非线性超声系数的演化规律,并讨论了非线性超声方法的适用范围。试验结果表明,当混凝土的高温损伤较小时,非线性超声检测对混凝土材料的高温损伤更加敏感,可以用来更为准确地评估混凝土结构在高温下较低损伤情况。