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"One is as yet undeciphered, but from appearance is clearly an intermediate step between Tibetan liturgical notations and the notation of Japanese chant."

其中一种记至今未被破译,不过从外表看来介乎西藏宗教礼仪音乐的记法与日本佛教合唱音乐记法之间。

OBJECTIVE To determine the relative and absolute molecular weight of working reference substance of Grifolafrondosa beta-Glucan and compare the two analysis methods.

目的测定灰树花倍他葡聚糖工作对照品的相对及绝对分子质量,并对两种分析方法进行比较。方法色柱为TSK-G4000PW,流动相为0.7%硫酸钠(含0.02%叠氮化钠)或0.2%叠氮化钠溶液,流速为0.5 mL.min-1,柱温为35℃,高效凝胶渗透色法用示差折光检测器,高效凝胶渗透色和激光光散射联用法用DNDC仪和激光光散射仪联用。

The optimal carrier gas velocity of prepared SE-30 series capillary chromatographic columns was studied and used to separate isomeric compounds. The efficiency of SE-30 capillary chromatographic columns has been studied with different diameters, film thicknesses and oven temperatures, using n-do-decane, phenol, aminobenzene, and butyl acetate as test samples.

研究自制的SE-30系列毛细管气相色柱的载气最佳线速度,并应用于同分异构体的色分离分别用十二烷、苯酚、苯胺、醋酸丁酯作试祥在不同载气线速条件下对不同口径、不同膜厚、不同柱温的SE-30毛细管色柱的柱效进行考察,并在最佳线速度条件下分离异戊醇、硝基氯苯、硝基甲苯及二乙苯同分异构体体系。

Anthocyanidin extract in methanol showed 3 absorption peaks, at 270, 340 and 520 nm, in the UV-vis spectrum, with bathochromic and hypsochromic shift with methanol+AlCl3 and methanol+AlCl3+HCl, respectively; the ratio of the absorbance at 440 nm to that at 520 nm was 0.29. No fluorescence occurred under UV irradiance, and 5 absorption peaks occurred at 270 nm after HPLC. Five molecular ion peaks occurred on MS: 595, 381, 611, 587 and 571, respectively, and monosaccharides in the extract were identified as rhamuose and glucose on HPLC.

一品红花色素的甲醇溶液分别在270、340 和520 nm 处有 3 个吸收峰;在 440 nm 吸光度与可见光最大吸收波长 520 nm 吸光度的比值为0.29;花色素的甲醇溶液中加入AlCl3后发生红移,再加入HCl后发生蓝移;色素溶液在紫外光下无荧光;色素样品经液相色分离后在 270 nm检测有 5 个比较明显的吸收峰;质中得到 595、611、381、571 和 589 等对应的分子离子峰;花色素酸解液高效液相色和鼠李糖、葡萄糖的出峰时间一致。

The spectroscopic and electrochemical studies suggest the energy structure of this class complex can be easily controlled by modification. With the introduction of electron-donating arylamino groups, the obtained complexes show intense and continuous absorption bands in the region of 250-550nm with strong metal-to-ligand charge transfer dπ(Pt →π* transitions (ε~ 2×104 dm3 · mol-1 · cm-1). Complexes involving the construction of D-π-A type systems also display continuous absorption bands in the region of 400-750nm, rising from the overlapping effect of MLCT and LL'CT bands.

其中,芳胺及其二聚体类修饰基团的引入,使其配合物MLCT吸收带的摩尔吸光系数增加,并在250~550nm范围内形成了强的连续吸收;具有D-π-A结构的配合物,由于MLCT吸收带和LL'CT吸收带的协同效应,导致在400~750nm范围内形成连续吸收;得到了从绿光到深红光的磷光发射系列配合物,并采用真空蒸镀的方法获到了外量子效率分别为5.7%和5.0%的橙光和橙红光多层电致发光器件。

The main peaks of the EEG power spectra were in delta and theta frequency range. In the stage of ethanol exposure, the rats exhibited much more act of attack than the control, the alpha waves of EEG decreased, while the delta waves increased. The EEG power spectra analysis showed the delta power increased and the theta power decreased. In the stage of ethanol withdrawal, the rats showed some withdrawal behaviors such as wet dog shakes, sniffing, groomingand tonic-clonic seizures for audiogenic stimulus. Spikes and spike-slow waves were found in the EEG. In power spectra analysis, the delta power decreased while the alpha and the theta power increased, the EEG frequency band moved to the high-frequency rang. These changes were found obviously on the sixth day and disappeared on the 1 Oth day after the ethanol was removed.

本研究发现:1、对照组大鼠行为无异常,伏核EEG以α节律为主,散在出现δ和θ节律;功率主峰在δ和θ频段范围,整个过程中未发现手术对伏核EEG及脑电功率有影响。2、在慢性饮酒过程中,大鼠攻击性行为增加,伏核 EEG的α节律明显减少,散在出现的高幅慢活动δ波逐渐增多,功率分析表明δ频段功率百分比明显增加,而θ频段功率百分比明显减少,总功率减少。3、停饮后,大鼠出现湿狗样抖动、打喷嚏等撤药综合症,并且高频声音刺激能引发惊厥;伏核EEG出现棘波和棘慢综合波,并持续增多,功率分析显示δ频段功率百分比 5 南京医科大学硕士学位论文逐渐减少,而0和以频段功率百分比逐渐增加,总功率增加。

Based on the results of Fisher linear discrimination analysis,the first principal component score spectrum of three-dimensional fluorescence spectrum is chosen as the identification characteristic spectrum for Bacillariophyta and Pyrrophyta,and the phytopla...

根据Fisher判别分析结果,选用三维荧光光的第一主成分得分作为硅藻和甲藻的识别特征,建立了浮游植物荧光特征库。

Five representative compounds were isolated as QC and biolocial study standards from three different species of Aloe by using preparative HPLC, CCC and other routine chromatography methods: Aloesin, Aloeresin A, and Barbaloin from dried latex of the leaves of A.

五、代表性化合物孤立御用biolocial从三个不同物种研究水准芦荟用制备高效液相色刑法和其他日常色方法:芦荟、芦荟一、由芦荟、晒干的叶甲ferox胶乳、从aloenin全脂芦荟、芦荟叶电子甲从干果皮的纯度和化学结构的色色和光方法证实。

After nucleosides were extracted from urine on phenyl boronic acid affinity chromatography, the analysis was performed on a column (4.6 mm i.d.X250 mm, 5 μm) at 22 ℃ using a lineargradient elution comprising 25 mmol/L KH2PO4 solution (pH 4.55) and 60% methanol in water with UV detection at 260 nm.

通过苯基硼酸亲和色法提取尿中核苷,在色柱(4.6 mm i.d.X250 mm, 5 μm)上以25 mmol/L磷酸二氢钾溶液(pH 4.55)和60%的甲醇水溶液作为流动相进行二元梯度淋洗,于22 ℃下进行反相色分离,260 nm处紫外检测。

Infra-red spectra of polybrominated biphenyl s and polybrominated biphenyl ether in electronic and electrical appliances were compared with their standard ones to determine if C-Br bond belongs to the characteristic absorption spectra of 650-500 cm ,thus selecting brominate based flame retardants qualitatively.

采用红外光法采集电子电气产品中的聚合物部件中多溴联苯和多溴联苯醚的红外图,与标准红外图对比,判定该部件的图中是否有C-Br键在650-500 cm-1间的特征吸收,从而进行溴系阻燃剂的定性筛选。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。