麻炭的制备及其微观结构

以汉麻秆为原料,通过直接炭化、磷酸/氯化锌活化法制备了麻炭。采用扫描电镜(SEM)、液N₂吸附、亚甲基蓝吸附和碘吸附分别对麻炭的微观骨架结构、表面织构、孔分布及吸附性能进行了表征。结果表明,麻炭微观形貌呈现多孔性的骨架结构,由彼此平行且直通的两种管道构成,管与管之间由管壁隔断,管壁本身分布着丰富的微孔,而且三种麻炭样品中均以微孔为主且微孔分布呈多分散性。未经活化处理的麻炭,其孔径主要分布在小于1.3nm的范围内,但其比表面积和孔容较小。磷酸和氯化锌活化的麻炭的比表面积分别达1388m²/g和1691m²/g,两者的孔分布较为相似,除了在小于2nm的范围内均有微孔分布外,还存在2～4nm范围内的中孔分布。麻炭对亚甲基蓝及碘的吸附值随比表面积的增大而增加,氯化锌活化的麻炭对亚甲基蓝和碘的吸附值最大,其次依次为磷酸活化的麻炭和未经活化处理的麻炭。     

江苏省实时水情可视化分析系统的设计与应用

江苏省实时水情可视化分析系统是在MapInfo5.5平台支持下，应用MapBasic二次开发语言，通过访问远程SYBASE实时水情数据库，对数据进行分析处理，使江苏省雨、水情数据及其统计分析结果在电子地图上实现了时空分布的可视化。系统的开发可为防汛会商决策提供科学的依据，并对江苏省防洪减灾有重大作用。     

Surface Graft Copolymerization of Acrylic Acid onto Corona Treated Cotton Fabric

Acrylic acid was grafted onto the surface of cotton fabric after being short time treated by corona-discharge inair in the presence of initiator.The means of gas-phaseSO_2 derivatization was used along with ESCA to deter-mine corona-discharge-induced-hydroperoxidegroups on the surface.The content of hydroperoxideshows a maxmium value at 15 sec.of corona-dischargetime.Effect of corona treatment time and various con-centration initlator on graft yield was studied.The addit-ion of initiator increases the graft yield.Acceleratedgraft with an increase in the concentration of Mohr's saltshows that peroxide groups on the corona treated cottonfabric initiate graft copolymerization.     

涤纶长丝织物与橡胶粘接性能的研究

采用涤纶长丝织物代替棉织物制作硫化胶鞋，提高了帮面的耐穿性。针对出现的粘接强度过低的技术难题，探讨了涤纶长丝织物与橡胶的粘接性能。结果表明，改变涤纶长丝织物的表面性能并筛选合适的粘合剂和粘合工艺技术条件，能够大大提高两者的粘接强度。     

双胎妊娠诱发腰骶椎椎间盘脱出一例误诊原因分析

患者孕35周GPO,双胎妊娠,右下肢剧痛,收住妇产科.因对病史重视不够,及孕期不能及时行x射线,CT及MRI检查,导致误诊.     

Analysis of Apparent Elasticity Constants of Woven Fabrics

The woven fabric can be defined as orthogonal elastomer if the extension force that puts on the fabric is very small. Based on the precondition, the apparent elasticity constants of a woven fabric were analyzed theoretically in the paper. The bias angle (which is between weft yarns and extension direction) affects apparent elasticity modulus and elasticity coefficient of the fabric in the extension direction. And the experiment describes fluxes of elasticity constants going with the bias angle of the fabric.     

中药配方颗粒的应用现状及前景分析

探讨中药配方颗粒的应用现状及前景,通过文献检索方式,综合分析中药配方颗粒的应用现状、研究进展及现阶段存在的问题。中药配方颗粒以我国中医药理论为指导,保持和发扬传统中药的特点和优势,具有剂量准确、卫生、即冲即服,贮存和携带方便等特点,越来越广泛地应用于临床;但中药配方颗粒在质量鉴定、疗效、品种及价格等方面还存在争议。     

Lyocell纤维在NaOH溶液中膨胀规律的研究

研究了 Lyocell纤维在 Na OH溶液中膨胀的规律 .发现在 1 1 %左右浓度的Na OH溶液中 ,Lyocell纤维的径向膨胀率最大 .揭示了 Lyocell纤维经 Na OH溶液反复膨胀处理后呈现的一些特点 ,并结合 Lyocell纤维的结构特点对这一现象给以初步的解释 .     

18米天线杆车顶收放升降机构设计

<正>18米升降天线杆(以下简称天线杆)一般直径为170mm,总收长为3300mm,总重量高达160Kg,由于外径大、长度长、重心高给天线杆在方舱或厢式车载情况下的安装、架设、撤收工作带来了困难。为了保证装车的灵活性、机动性,我们设计出了一套天线杆上下车顶的升降机构。     

Study on Shielding Effectiveness of Fabric for Electromagnetic Wave with Different Inlaid Distances of Metal Fibres

IntroductionThe electromagnetic radicalization has become thefourth source of pollution besides water , air and noise .Many studies have shown that the electromagnetic radical-ization does great har mto the health of human beings .Itcan damage the function of peoples nerve system,i mmuni-ty system,circulation systemand procreation system.[1,2]With the electromagnetic radicalization becomingmore and more serious ,the fabric with shielding functionto electromagnetic wave is now attracting more a…