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1.
介绍了人造毛皮织物的特性,并对原料的选择及配比、编织及整理工艺的确定、编织设备、烫光设备和剪毛设备的选定进行了充分的分析.  相似文献   

2.
从浆染设备及工艺2方面对牛仔布经纱染色上浆生产过程进行详细介绍。分析了当前牛仔布经纱的染色原理及浆染设备的几种形式,并分别对各种浆染设备类型进行了阐述及对比分析。还论述了牛仔布经纱浆染工艺设计的参考依据,且对经纱浆染设备、工艺技术的发展趋势做了简单阐述。  相似文献   

3.
电网由发电设备、输电设备及配电设备共同组成,配电设备作为电网的最末端,其与用户直接相连,直接关系到供电的质量,所以需要做好配网设备的检修和运行维护管理工作,确保配电设备运行的稳定性。文中从配网设备状态检修指标思想入手,对当前我国配电设备检修及运维管理现状及实践措施进行了分析,并进一步对配电设备状态检修及运维管理中应注意的事项进行了具体阐述。  相似文献   

4.
探讨了检测设备附件及标准物质对纺织品检测结果的影响,分析了胀破强度、起球、水洗尺寸变化、耐洗色牢度、耐光色牢度等检测项目中设备附件和标准物质的影响,识别了纺织品实验室仪器设备附件及标准物质管理中的关键点和风险点,验证了实验室对各类设备附件应按照设备的整体要求进行管理的要求。结果表明,应按要求配备设备附件和标准物质,配备的设备附件应标准化,应使用有证标准物质,实验室自己配备的设备附件应进行校准和验证。  相似文献   

5.
结合国内火力发电厂现有设备及运行特点,对于火力发电厂各种设备及运行的节能技术进行了探讨,并有针对性的对于设备节能降耗的技术进行了明确,提出了此种变频节能技术的具体方案及特点。  相似文献   

6.
介绍了双机型孔式滤网骨肉分离设备的基本结构及性能特点,对该设备双机结构、孔式滤网、骨出口结构及调整方式进行了重点阐述.  相似文献   

7.
介绍了稳定(柔滑)型花生酱加工工艺、工艺流程、加工技术及设备,对关键技术、设备进行了探讨研究。  相似文献   

8.
城市轨道交通车下设备安装方式各异,设备与车体通过紧固件进行连接,连接的可靠性是生产组装车辆过程中必须要保证的关键点。文章介绍了车辆设备吊挂紧固件的选用原则,细述了地铁及轻轨、低地板车辆设备吊挂的安装位置、安装方式及紧固件的选用,总结了设备吊挂设计需要考虑的因素。  相似文献   

9.
介绍了涤纶POY微细旦丝平行纺丝卷绕设备及纺丝工艺技术特点。重点对纺丝箱体、卷绕机、冷却条件等设备及工艺特点进行了详细讨论。  相似文献   

10.
李全喜  朱静 《上海造纸》2004,35(2):14-17,55
本文介绍了近年来发展起来的关于废铝箔纸的回收技术,工艺流程,典型生产设备及工艺条件.对这些回收技术从其原理上进行了分类;从原理、设备、操作、采用介质及特点等方面进行了比较.  相似文献   

11.
干燥方法对金银花的质量影响研究   总被引:2,自引:0,他引:2  
陈德经 《食品科学》2006,27(11):277-279
通过对金银花的不同干燥方法比较,干燥方法对金银花的质量有较大影响。在色泽方面,微波干燥和烘干的为绿色,晒干和真空干燥的为黄绿色,真空冷冻干燥的为褐色;在绿原酸的含量上,微波干燥的为5.93%,晒干的为5.17%,烘干的为5.53%,真空干燥的为3.95%,真空冷冻干燥的为3.35%;干燥后每g金银花的含菌量分别为:微波干燥的细菌总数2×103,晒干的为3.4×105,烘干的为1.4×105,真空干燥6×104,真空冷冻干燥为4×104。结果表明微波干燥最适合金银花的干燥。  相似文献   

12.
Influence of pectin modification on water binding properties   总被引:2,自引:0,他引:2  
Water can be bound to food components and products as non-freezing, freezing-bound and free water. The interactions are crucial for any application as well as for food consumption and digestion. DSC was applied to examine the amounts of the different types of water bound to pectin, a biomacromolecule that is used as gelling and stabilising agent in many food products. One commercial high-methoxylated citrus pectin and three modified samples, prepared by acidic and alkaline demethoxylation as well as amidation, were tested. The water content of dry samples depended mainly on the molecular parameters, especially the content of hydrophilic groups at the galacturonic acid that was increased by demethoxylation and amidation, as well as on monovalent cations of the pectins. The water–pectin interactions of wetted materials were additionally influenced strongly by the availability of hydrophilic groups that depended on material properties such as amorphous or crystalline state, powder bulk and solid density and porosity as well as particle size, surface and porosity. Small amorphous porous particles, whose polar groups were rapidly available without prior softening and swelling, accelerated water uptake. Non-freezing and freezing-bound water, bound closely to the pectin molecules, depended on the number and type of polar groups. Free water, bound in micro- and macro-capillaries as well as voids within and between the pectin particles, was influenced by hydrophilic as well as hydrophobic groups of the samples. There was a strong impact of the pre-treatment during processing and modification.  相似文献   

13.
为拓展纤维素降解菌资源,以羧甲基纤维素钠(CMC-Na)为唯一碳源作初筛培养基,从浓香型白酒发酵副产物黄水中分离得到18株具有产纤维素酶能力的菌株进行纯培养。形态学、生理生化和系统发育鉴定结果显示,菌株XH01、XH04、XH05、XH18为Bacillus cereus,菌株XH34为Bacillus circulans,菌株SW01、SW05为Bacillus megaterium,菌株SW02为Bacillus endophyticus,菌株SW03、SW04为Bacillus simplex,菌株SW09、SW13为Bacillus bataviensis。菌株ZL08为Penicillium camemberti,菌株ZL13为Aspergillus fumigatus,菌株ZL04和ZL25为Penicillium chrysogenum,菌株ZL15和ZL17为Alternaria tenuissima。利用二硝基水杨酸法对菌株发酵液纤维素酶活进行研究,结果表明,菌株SW02的产酶活性较高,其羧甲基纤维素酶活为153.36 U/mL,β-葡萄糖苷酶活为126.00 U/mL,微晶纤维素酶活为17.64 U/mL,滤纸酶活为30.48 U/mL。  相似文献   

14.
吴军玲  金佳 《印染》2009,35(15)
超支化聚合物具有特殊的结构和性能.其包含大量的枝化结构,可提高溶解度;其大量的链端官能团.可提高反应性.因此,超支化聚合物在纺织印染行业中的研究和应用受到广泛关注,如超支化聚合物可作为双氧水漂白稳定剂,在涂料染色和印花中作为黏合剂,与聚丙烯共混纺丝改善其可染性,对棉、麻、真丝等天然纤维改性以实现无盐染色,对纤维表面进行功能性后整理,以及利用其絮凝和螯合作用而用于印染废水处理等.  相似文献   

15.
以枸杞浓缩浆为原料,异VC-Na、柠檬酸为护色剂,麦芽糊精和β-环状糊精为助干剂,CMC-Na为稳定剂,白砂糖为甜味剂,柠檬酸为酸味剂,蔗糖脂肪酸酯和单甘酯为乳化剂,使用喷雾干燥法生产速溶枸杞粉。采用正交试验确定最佳的枸杞粉加工工艺。  相似文献   

16.
Epidemiological reports as well as experimental studies have demonstrated the significant health benefits provided by regular berry consumption. Berries possess both prophylactic and therapeutic potential against several chronic illnesses, such as cardiovascular, neurodegenerative, and neoplastic diseases. Berries owe their health benefits to phytoconstituents, such as polyphenolic anthocyanins, ellagic acid, and a diverse array of phytochemicals bestowed with potent antioxidant and anti-inflammatory effects as well as the ability to engage a multitude of signaling pathways. This review highlights the principal chemical constituents present in berries and their primary molecular targets. The article presents and critically analyzes the chemopreventive and therapeutic potential of berry extracts, fractions, and bioactive components on various cancers of the gastrointestinal tract (GIT), including esophageal, stomach, intestinal, and colorectal cancers as well as cancers of the upper aerodigestive tract, such as oral cancer. The current status of clinical studies evaluating berry products in several aforementioned cancers is presented. Various emerging issues including dose-ranging and dosage forms, the role of synergy and the usage of combination therapy as well as other relevant areas essential for the development of berry phytoconstituents as mainstream chemopreventive and therapeutic agents against aerodigestive and GIT cancers are critically discussed.  相似文献   

17.
Bacillus probiotics   总被引:2,自引:0,他引:2  
Bacterial spore formers are being used as probiotic supplements for use in animal feeds, for human dietary supplements as well as in registered medicines. Their heat stability and ability to survive the gastric barrier makes them attractive as food additives and this use is now being taken forward. While often considered soil organisms this conception is misplaced and Bacilli should be considered as gut commensals. This review summarises the current use of Bacillus species as probiotics, their safety, mode of action as well as their commercial applications.  相似文献   

18.
活性染料冷轧堆染色工艺   总被引:7,自引:4,他引:7  
王永武 《印染》2006,32(7):18-20
对活性染料冷轧堆染色工艺的主要问题,如染料的选择、工艺控制、存在问题及解决方法等,并结合生产,对缩小大小样差异等问题进行了探讨。  相似文献   

19.
基于中国传统医学"天人合一""四季养生"的理念,研究选用药食同源的原料,结合秋季燥邪当令的特点,以感官评分为指标,研制一款适合秋季调理的天然草本养生饼.采用单因素及正交试验确定并优化了秋季草本养生饼配方:馅以板栗仁质量为基准,加入山药9%,百合2%,藕粉4%,木糖醇20%,混合油(玉米油∶黄油为1∶1)10%;皮以白芸...  相似文献   

20.
基于稳健设计理论的平面机构优化设计   总被引:2,自引:2,他引:0  
刘文军  陶薇 《轻工机械》2009,27(2):53-55
运用稳健设计理论,以连杆机构的几何参数为设计变量,以满足曲柄摇杆机构及传动角条件为约束。以再现轨迹精度最佳为目标函数。同时考虑连杆件制造精度对轨迹精度的影响。采用蒙特卡罗法采样和多目标遗传算法对机构进行稳健优化设计。计算结果表明:该方法更符合实际情况,且当设计变量发生变异时,能有效保证机构的运动轨迹精度。  相似文献   

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