Interactions of pyrogallol red with proteins and the determination of proteins by resonance light-scattering

Ｉｔｉｓｖｅｒｙｉｍｐｏｒｔａｎｔｔｈａｔｔｈｅｄｅｔｅｒｍｉｎａｔｉｏｎｏｆｐｒｏｔｅｉｎｃｏｎｃｅｎｔｒａｔｉｏｎｓｉｎｃｌｉｎｉｃａｌｔｅｓｔｓａｎｄｌａｂｏｒａｔｏｒｙｐｒａｃｔｉｃｅ．Ｕｐｔｏｎｏｗ，ｔｈｅｒｅｈａｖｅｂｅｅｎｍａｎｙｍｅ...     

Allocation of power generating and shipping of Hanjiang upstream cascade

1Generalsituationofthecascades1.1Cascadeshydropowerplants HanjiangRiverisoneofthelongesttributariesof YangtseRiver,originatingfromNingqiangcountyof ShaanxiprovinceandflowingthroughShaanxi provinceandHubeiprovince.HanjiangRiveris1567kmlongintotal,and709kmofitinShaanXi provincerunsthroughHanzhongandAnkangregions fromtheeasttothewest.TheupperreachesofHanjiangfromYangxian countytoBaihecountyinShaanxiprovinceis443km long,anditstotalheadfallsisabout280mhigh.Withabundantwaterpowerresources,its…     

A new research on auto compatible default theory

Ｅｘｔｅｎｓｉｏｎｉｓｔｈｅｍｏｓｔｉｍｐｏｒｔａｎｔｃｏｎｃｅｐｔｉｎｄｅｆａｕｌｔｌｏｇｉｃ．Ｒｅｉｔｅｒｈａｄｍａｄｅｓｏｍｅｒｅｓｅａｒｃｈｏｎｔｈｅｓｐｅｃｉａｌｋｉｎｄｏｆｄｅｆａｕｌｔｌｏｇｉｃ,ｔｈａｔｉｓｎｏｒｍａｌｄｅｆａｕｌｔｌ...     

Systematic studies on the neotropical genus Fusaea (Baill.) Saff.(Annonaceae)

ＴｈｅｇｅｎｕｓＦｕｓａｅａｗａｓｆｏｕｎｄｅｄｂｙＳａｆｏｒｄ［１］ｉｎ１９１４．ＴｈｅｔｙｐｅｓｐｅｃｉｅｓＦ．ｌｏｎｇｉｆｏｌｉａｗａｓｏｒｉｇｉｎａｌｙｄｅｓｃｒｉｂｅｄｂｙＡｕｂｌｅｔ［２］ａｓＡｎｎｏｎａｌｏｎｇｉｆｏｌｉａ．Ｂａｉｌｏ...     

两相流理论在挟沙水流流速分布和阻力求解中的应用

利用紊流条件下的固液两相流基本方程,结合推移质运动水流的概化模式,推导出定床和动床两种情况下明渠带推移质水流的流速分布和阻力系数公式。通过实测资料的计算,证明了理论分析的合理性。     

基于微Doppler提取的具有旋转部件雷达目标成像

雷达运动目标部件的振动和旋转运动会对目标回波信号引入附加的频率调制并产生关于Doppler中心频率的附加边带效应.这种附加的谱效应会对目标主体的ISAR像造成污染,严重时无法对目标主体进行成像.文中提出了一种基于Hough变换的微Doppler信息分离与提取方法,基于旋转部件的微Doppler谱与目标主体谱在谱图域表现形式的不同,利用Hough变换和一种推广的Hough变换分别将目标主体谱与旋转部件的微Doppler谱提取后既获得了具有大旋转部件一类目标的清晰像、同时也获得了目标旋转部件的一些运动及结构信息.最后,仿真结果验证了该方法的有效性.     

虚拟仪器下车用交流发电机综合测试系统

详细介绍了虚拟仪器下车用交流发电机实验测试系统的组成与工作原理，并就发电机性能测试与控制方法进行了论述。该实验系统利用计算机作平台，建立友好的虚拟仪器面板，有利于提高发电机性能测试的质量和效率。     

2,3-二氯-6-羧酰氯喹啰啉活性染料反应活性及“染料-纤维”键的稳定性

对２,３－二氯－６－羧酰氯喹啉类活性染料的反应活泼性以及“染料－纤维”键的稳定性进行了反应动力学研究,测定水解速度常数;与其他类型活性染料进行比较,对此类活性染料性能进行了评价。     

QUALITATIVE ANALYSIS FOR A THIRD-ORDER DIFFERENTIAL EQUATION IN A MODEL OF CHEMICAL SYSTEMS

In this paper a mathematical model of chemical systems is investigated.We present the conditions for the existence and local stability of the steady statesand the periodic solution of the Hopf type.Specifically,we show by using an ana-lytical method that there may exist two or four Hopf bifurcation points separatedat a finite distance from each other;at the same time,a technique for studying theHopf bifurcation value is given.     

Rapid solidification of acoustically levitated Al-Cu-Si eutectic alloy under laser irradiation

Al-27%Cu-5.3%Si ternary eutectic alloy was melted using a YAG laser and then solidified while being acoustically levitated. A maximum undercooling to 195 K (0.24 TL) was achieved with a cooling rate of 76 K/s. The solidification microstructure was composed of (Al+θ+Si) ternary eutectics and (Al+θ) pseudobinary eutectics. During acoustic levitation, the (Al+θ+Si) ternary eutectics are refined and the (Al+θ) pseudobinary eutectics have morphological diversity. On the surface of the alloys, surface oscillations and acoustic streaming promote the nucleation of the three eutectic phases and expedite the cooling process. This results in the refinement of the ternary eutectic microstructure. During experiments, the reflector decreases with increasing alloy temperature, and the levitation distance always exceeds the resonant distance. Because of the acoustic radiation pressure, the melted alloy was flattened, and deformation increases with increasing sound pressure. The maximum aspect ratio achieved was 6.64, corresponding to a sound pressure of 1.8×104 Pa.