谈谈自行车运动

用动量矩定理分析了自行车运动的动态稳定性,给出了自行车运动的稳定范围．     

调控pH值提高木聚糖酶活力的研究

通过控制产酶过程ｐＨ 值能有效提高里氏木霉木聚糖酶活力。结果表明,当控制产酶ｐＨ 为４ ．０ 时,有利于提高木聚糖酶活力,且此ｐＨ 对提高β－ 木糖苷酶活力的影响更大。ｐＨ 调控时间不宜过长,一般应以控制１ ～２ ｄ 后让其自由发展为宜。     

Cumulate complex xenoliths in the Early Mesozoic in eastern Inner Mongolia

Mafic xenoliths occur in Mesozoic diorites from nine localities in eastern Inner Mongolia from the Da Hinggan Mts. to Huabei craton. Their petrologic and geochemical features suggest that they are an intact suite of cumulate complex whose mineral assemblages contain typical patent mantle metasomatism minerals such as pargosite, phlogopite and apatite. Their REEs and trace element characteristics suggest a comagmatic relationship in these cumulates with different compositions. Isotopic dating of the xenoliths indicates that they are products of the mantle magmatic underplating in the Early Mesozoic (237–224 Ma), and they may provide direct evidence for the crust-mantle interaction and vertical accretion of continental crust under a background of the mantle upwelling in the Early Mesozoic in Huabei region.     

The Rb-Sr age and geological implication of alkaline syenitic complex from Liangtun-Kuangdonggou at Gaixian, eastern Liaoning Province

Liangtun-Kuangdonggou complex, 30 km southeast of Gaixian Town, Liaoning Province, is composed of aegirine-augite hornblende syenite, aegirine-augite syenite, hornblende syenite, pyroxene syenite and syeno-aegirinolite. Rb-Sr isotopic data to the complex are reported and used for discussion of chronology and geological implication. They show that the complex occurred in early Proterozoic and is a tectonic sign of extension setting. Moreover, the date indicates that the Liaohe Group, which is metamorphic wall rock of the complex, formed over 1 900 Ma ago.     

巢蜜蜂新型蜜源饲料糖液的研究

对巢蜜蜂饲料专用糖液的制备进行了研究,筛选出该糖液的最佳生产工艺条件。经检测糖液的重金属含量明显低于国家卫生标准     

阶调印花中新坐标色差评价方法研究

提出了一种用于原色染料网目阶调印花中的新坐标色差评价方法。建立了新坐标色差评价的数学模型, 并用实验进行了验证。该方法能准确计算色相差和彩度差, 从而保证了阶调印花质量。     

红外辐射对浆纱干燥规律影响的探讨

分析了红外辐射在浆纱干燥中的应用规律;试验研究了红外辐射主波长、红外辐射强度、红外辐射源与浆纱间距离对浆纱干燥速率的影响规律.     

近红外法测定棉纤维还原糖的探讨

探讨了近红外法测定棉纤维还原糖的可行性,测得原棉中含葡萄糖、果糖、蔗糖量分别与λ1=1.64μm和λ2=2.10μm下的吸光度值有较高的线性相关.分析了在一定波段下棉纤维素、葡萄糖、果糖的吸光度不同的原因.     

锥面钢领钢丝圈的高速摄影研究

利用钢丝圈在锥面钢领上及纱线段在气圈最大凸形处的高速摄影图像,分析了钢丝圈在锥面钢领子午面的倾侧及工作状态,在垂直面上的前倾及工作状态,在水平面上的超前及工作状态.讨论了拎头轻重、钢领内跑道面上的波状磨损及钢丝圈在钢领跑道面上的运动模式特等问题.     

织物红外反射性能的研究

测试了多种不同材料、结构的织物的红外反射性能,找出了红外反射线的空间分布特征,并计算出了各织物的反射率.