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41.
Two bovine β-lactoglobulin-alginic acid (β-LG-ALG) conjugates were prepared to improve the function of ALG by using water-soluble carbodiimide and the Maillard reaction. Fluorescence studies suggested that the conformation around Trp had been changed in each conjugate and that the surface of each conjugate was covered with polysaccharide chain. Structural analyses with monoclonal antibodies indicated that the conformation around 15Val-29IIe (β -sheet) in each conjugate had changed, while the native structure was maintained around 125Thr-135Lys (α-helix). After conjugating with β -LG, ALG showed retinol-binding and high emulsifying ability. The aggregating property of ALG in acid and in the presence of Ca2+ was improved in each conjugate.  相似文献   
42.
Eating of agar and gelatin gels in the mouth was studied dynamically in detail. The palatal presures on agar and gelatin gels of various concentrations and dimensions were detected by pressure transducers installed at three locations of the palate. For each of the gels, Pm (the maximum palatal pressure at the initial stage of mastication), P (the mean palatal pressure), W (work), and T (retaining time in the mouth) changed significantly when their concentrations increased. Moreover, gel dimensions also affected Pm, P and W. For a bite-size gel, Pm, P and W increased or remained constant, while for a finer sized gel, Pm, P and W were nearly constant regardless of the increase in rupture strength or gel concentration.  相似文献   
43.
The color of hypoallergenic rice grains, produced by an enzymatic process was improved by treatment with diluted hydrochloric acid and washing with water. The acid-treated grains were steamed at the surface layer to prevent breakage. Textural evaluation showed the cooked hypoallergenic rice grains had a favorable stickiness/hardness ratio.  相似文献   
44.
本文利用超高压电子显微镜进行电子辐照实验,分析了我国试制的氧化物弥散强化(ODS)铁素体钢的辐照行国.在670-720K下辐照时观察到了辐照空洞的形成.辐照条件为720K,9dpa时的辐照肿胀率小于0.1%.同时在电子衍射图样中发现了明显的衍射环,分析表明这些衍射环的出现是由于电子辐照促进了Y2O3微细相形成的缘故.  相似文献   
45.
In this paper, a cooperative control algorithm for multiple step voltage regulator (SVR) using correlation of measurement data of distribution line is proposed. Conventionally, the control time constant of a SVR placed on the feeder end side was set slower than a SVR placed on the substation side. The unnecessary tap movement of SVR was reduced by this setting. In this case, on the condition that “the photovoltaic power generation output of the feeder end fluctuates” and “only SVR of the end side works”, it is a problem that control of SVR becomes slow. By the proposed method, the SVR settled in end side of a feeder can change its tap rapidly only if the SVR settled in sending side of a feeder will not change its tap by using proposed method. The features of the method are followings: (1) to estimate tap change possibility of the sending side SVR using correlation model of both of the SVR, (2) only use local measurement data of the SVRs for tap change control. By the proposed method, unnecessary tap change operation and lag of tap control are reduced without communication networks.  相似文献   
46.
本文用超高压电镜(HVEM)作为电子束源,研究了Fe-15%Cr-30%Ni合金电子辐照后,合金空洞体胀和诱起晶界偏析.实验结果证明:723K,最大剂量15dpa条件下,体胀量为0.62%.在晶界发生Cr贫化、Ni富化.随着辐照温度提高,晶界偏析程度增加,723K时Cr,Ni在晶界出现最大偏析峰,相应空洞体胀量也最大.结果表明,空洞形成和晶界偏析密切相关,本文提出了辐照诱起晶界偏析模型.  相似文献   
47.
开发出一套适于FCC(面心立方)金属的三维弹塑性有限元程序FEPM-3DFCC,该程序将与应变速率无关的多晶体弹塑性模型引入到立方体单元晶粒塑性应变增量的计算中.文中以Al板为例用FEPM-3DFCC程序计算出常温下单向拉伸和压缩、双向压缩、平面应变、面内剪切和厚向剪切等六种典型受力状态下的织构演变和各向异性变化,并对Al圆管扭曲与拉伸复合加载和Al圆管冷径缩挤拔加工进行了数值模拟.  相似文献   
48.
Multilayer polarization elements and their applications to polarimetric studies in 20~400 eV region are mainly reviewed.General principle of selecting material combinations to get high linear polarizance multilayers of reflection type is given with practical examples,with periodic or non-periodic layer structures depending on the usage.Transmission type is introduced as linear polarizer and phase shifter.Their applications include polarization diagnosis of laboratory optical systems and synchrotron radiation beamlines of linear and circular polarization,magnetic rotation experiments such as Faraday rotation and magnetic Kerr rotation on magnetic films and multilayers,and ellipsometry to measure optical constants of thin films precisely.Polarization analysis of soft X-ray fluorescence using multilayer-coated grating is also mentioned.Finally this review is summarized with outlook of further developments.  相似文献   
49.
A 0.5 kbp phaseolin gene fragment was used as a probe to study phaseolin restriction fragment length polymorphism (RFLP) in P. vulgaris cultivars. Results obtained from plants displaying type S and type T phaseolin suggest a genomic organization more variable than that previously described. This variability could be exploited to aid gene identification as well as to improve germ plasm bank organization. The same probe was useful in detecting phaseolin linked RFLP in other leguminosae.  相似文献   
50.
胡本芙  吴承健 《金属学报》1995,31(11):525-530
研制了一种具有低肿用蒿强度的氧化物弥散强化型铁素体钢Fe-Cr-W-Ti-Y2O3,并对其抗辐照损伤行为进行了系统研究。电子辐照表明,Y2O3弥散氧化物质点在所研究的辐照下是稳定的,在辐过程中形成b=a〈100〉和b=a/2〈111〉两种类型的位错环。  相似文献   
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