TRIZ理论在油茶苗嫁接机设计中的应用

简单介绍了TRIZ理论中的冲突解决理论和物质-场分析模型。在研究套管式蔬菜嫁接机的机架基础上,利用确定技术冲突、阿奇舒勒矛盾矩阵和发明原理的方法,对油茶苗木嫁接机机架及输送机构进行机构创新设计。并且采用物质-场分析模型确定嫁接机构总成中的小问题,确定嫁接机构总成的结构方案。     

印刷体文档中的数学公式识别方法综述

数学公式识别是将中文电子文档中包含的数学公式识别出来的方法.印刷体文档中的数学公式识别是由预处理,数学公式的抽取分割定位和结构分析识别3部分组成.主要介绍了目前数学公式识别的研究现状,并对已提出的各种成熟识别方法进行总结.     

十六氯酞菁锌有机半导体材料的合成及其气敏性研究

Due to the difficulty in synthesizing perhalogenated metallophthalocyanine, the method of ammonium molybdate solid phase catalysis was introduced, and by using tetrachlorophthalic anhydride and urea as the raw materials, hexadecachloro zinc phthalocyanine （ZnPcCl16） was synthesized. Components of the composite were analyzed by energy spectrum, and its functional group structures and absorption peaks were characterized by IR and UV-vis spectroscopy. The thin films of gas sensors were prepared in a vacuum evaporation system and evaporated onto SiO2 substrates, where sensing electrodes were made by MEMS micromachining. The optimal conditions for the films are： substrate temperature of 150 ℃ evaporation current of 95 A and film thickness of 50 nm. The result showed that the sensors were ideally sensitive to Cl2 gas and could detect the minimum concentration of 0.3 ppm.     

油页岩的干馏废水的处理

本文主要介绍油页岩干馏废水的羟基自由基（CAOT）处理工艺及该工艺中各构筑物作用和效益分析。     

自密实混凝土的试验研究

使用吉林地区原材料配制强度等级为C40的免振捣自密实混凝土,对自密实混凝土的抗压强度、劈裂抗拉强度、抗折强度、混凝土与钢筋粘结强度、抗冻性能等进行试验。用Matlab和Excel软件进行二元线性回归分析,结果表明:混凝土抗压强度与胶水比和粉煤灰掺量之间具有显著的线性关系,并推导出公式。     

哈尔滨绍和水厂自控系统改造实践

介绍了哈尔滨绍和水厂自控系统改造的情况,对改造前、后净水工艺(加药、反应搅拌、刮泥排泥、加氯、过滤等)控制方式以及自控系统运行效果进行了比较,并总结了自控系统运行两年来的实践经验和体会.改造结果表明,除了水质得到进一步提升外,制水成本降低了17%,产水能力增加了343×104m3/a.     

汽车起动用铅酸蓄电池化成半化率的讨论及研究

实验研究极板化成装板后浸泡时间对汽车起动用铅酸蓄电池化成半化率的影响。通过比较充电前浸泡时间分别为10 min、20 min、30 min、40 min、50 min、60 min后的极板半化率,得出结论极板浸泡30 min开始充电极板半化率最低。     

哈尔滨市公共图书馆共享工程建设调研报告

概述了近年来哈尔滨市公共图书馆文化信息资源共享工程建设的资金投入、设施和服务的情况,分析了共享工程建设过程中存在的问题,提出了共享工程建设的发展对策.     

红茶菌产细菌纤维素菌种分离与初步鉴定

传统红茶菌在绿茶-蔗糖培养基表面会形成一层白色菌膜,取附着于菌膜上的菌体,在醋酸菌和酵母菌平板培养基上划线分离得到纯菌种A和Y,经菌落、菌体形态观察和生理生化试验鉴定,确定A为葡糖杆菌属Gluconobacter asai和Y为路德类酵母Saccharomycodes ludwigii,进一步将两种菌株混合接入绿茶-蔗糖培养液中,对产物判定结果为纤维素。     

Bio-hydrogen production by a new isolated strain Rhodopseudomonas sp. WR-17 using main metabolites of three typical dark fermentation type

In this work, a new strain WR-17 was isolated for photo-fermentative hydrogen production and its hydrogen production capacity was investigated by utilizing main liquid byproducts of three dark fermentation types in batch culture. Experimental results indicated that strain WR-17 was identified as genus Rhodopseudomonas and maximum hydrogen yield of 2.42 mol H₂/mol acetate was obtained when the acetate was used as sole carbon source. Strain WR-17 had an excellent ability of using mixed short chain acids of three typical fermentations such as acetate and ethanol, acetate and butyrate, acetate and propionate. Result demonstrated that the metabolites of butyric acid-type fermentation as substrate is fitting to produce hydrogen and maximum cumulative hydrogen volume of 2156 ml/L-medium was obtained when acetate of 30 mmol/L and butyrate of 15 mmol/L were used. Therefore, butyric acid-type fermentation has great potential for further obtaining high hydrogen yield by the combining photo-fermentation.