Study on Process Conditions of Preparation of Microporous Potatoes Starch by Complex Enzyme Method

[Objective] The technology of using c-amylase and glucoamylase to prepare microporeus potato starch was studied.[ Method ] Taking potato starch as raw materials, starch hydrolysis rate and the oil absorption as a measure of index, the influences of the reaction temperature, two enzymes proportion, the quantity of enzyme, the chroma of substrate, buffer solution pH and reaction time on microporous potato starch were inves- tigated. [ Result] The experimental results showed that the best technological conditions were reaction temperature 45 ℃, enzyme ratio （ glucoamy- lase/α-amylase）6, the quantity of enzyme （amount of enzyme and starch quality than） is 1.0%, the substrate quantity chroma of 0.14 g/ml, buffer solution pH 4, the reaction time 8 h. In such process condition, the oil adsorption rate of hydrolyzed potato starch was as high as 70.2%, starch hydrolytic ratio was 34.16%. [ Condmion] The study provided a basis for the development and utilization of microporous starch. Key words Microporous starch; Hydrolysis rate; Oil absorption rate; Preparation; Complex enzyme method; China

Dracula as a Lovesick Monster, Iconology of the PFM＇s Rock Opera

Playbills, covers, and logo of an opera often reflect the meanings of the drama. This paper focuses on above mentioned issues with reference to Dracula, the rock opera of Italian band PFM （Premiata Forneria Marconi）, explaining how every visual aspects （also considering scenography and costumes） are closely linked to libretto and music to show the consistency among the different facets of the opera production. In this procedure, graphic artists and designers confirm their knowledge, but apart from this awareness, there are some symptoms of an tmconscious creativity as much coherent. As a result, this study aims to show how the management of the biggest colossal in the history of rock opera tries--constantly torn between art and advertising--to attract a potential audience by means of the iconography both of the composers and of the most famous vampire in the world.

The Dramatistic Action of Language in Thomas Kyd＇s The Spanish Tragedy

Kenneth Burke＇s rhetoric on language as a symbolic action offers an enlightening perspective for revealing the connection between the motivations and actions of the characters in Thomas Kyd＇s The Spanish Tragedy. This work is a Renaissance drama that features hues of rhetorical language. Linguistic obfuscation, scapegoat mechanism, and the malfunction and dysfunction of language in victimization and revenge are thrown into relief through Burke＇s elaborate system of the symbolism of language. Analyzing the discursive performances of the main characters, readers could get clues of their motives that drive their actions, which are both a representation and an illustration of how language as a symbolic action works in literature

Quentin Skinner＇s ＂Rhetorical Turn＂ and the Chances for Political Thought

Quentin Skinner＇s work since his turn to rhetoric has not been extensively discussed. My thesis is that with this turn Skinner has invented another novelty in the study of political thought, by including the analysis of the rhetoric of debating pro et contra among political agents as sources of political thought. The exemplary institution for such debates is the Westminster Parliament, and Skinner extends the analysis of the rhetorical culture of English Renaissance to studies on parliamentary debates. Here I am first comparing Skinner＇s The Foundations of Modern Political Thought and Reason and Rhetoric in the Philosophy of Hobbes in their relationship to rhetoric. Subsequently I discuss Skinner＇s comments on English parliamentary debates, including his recommendation to read Hobbes＇s Leviathan ＂as a speech in Parliament.＂ Reason and Rhetoric has inspired valuable studies on English Renaissance political rhetoric, shortly discussed here. For the understanding of the distinct parliamentary variety of deliberative rhetoric, I refer to the formation of a specific parliamentary procedure and to procedural tracts from sixteenth- and seventeenth-century Westminster, which among others create a parliamentary vocabulary and rules for conducting and regulating parliamentary debates. The parliamentary procedure institutionalizes the principle of in utramque partem disputare, central in Skinner＇s rhetorical studies. By this manner we can re-activate the link between political thought and parliamentary studies as well as explicate a dissensual alternative to Jiirgen Habermas＇s views on the political thought studies and parliamentary debates.

Microbiological Quality of Traditional Romanian Cheeses from the Rucar-Bran Pass and its Surrounding Regions

The traditional products＇ quality is often recognized based on organoleptic characteristics without considering the microbiological features, which bring a special note to these products＇ composition and aroma. It is especially the case of cheeses, whose taste varies from one geographical region to another depending on specific flora and technological processes used in traditional systems. The paper tries to bring new elements on the methodology used in order to elucidate some aspects related to traditional products＇ quality, products obtained by private producers in the Bra^ov district （Rucar-Bran pass）. Covasna district and Bistrita Nasaud district were analyzed organoleptically, physico-chemically and microbiologically samples of fresh cow cheese, soft cow cheese, smoked curd cheese, gaiter cheese and cottage cheese taken within the strategic and self-control program from individuals in the rural areas of Fundata, Poiana Sibiului, Sirnea, Pfirliu, Cristian, Cincaor, Sohodol, Ranov, Brarov, Bod, Roadea, Harnan, Prejmer, Soars, Rupea, Lunca Calnicului, Balanii, Mari, Bran, Buzaiel, Bacut, H~.lchiu, Fagraa, Moeciu de Sus, Purcaareni, Bran-Simon, Venelia de Jos, Vama Buzatului, lntorsura Buzaului, Vatrghia and Sita Buzaului.

Investigation on martensitic steel using a quenching-partitioning-tempering process via electron backscatter diffraction analysis

A new quenching-partitioning-tempering （Q-P-T） process was designed based on the recently developed quenching and partitioning （ ＆ P） treatment by Speer et al. The orientation relationships （ORs） of martensite （α） in Q-P-T steel tempered under different conditions were investigated using a scanning electron microscope with an electron backscatter diffraction unit. The morphology and crystallography of lath martensite within a packet were analyzed. Martensites exhibiting an initial austenite （y） grain in the orientation image map of different samples were chosen and their { 111 }α pole figures were drawn. The pole figures were fitted according to the ideal Kurdjumov-Sachs （K-S） and Nishiyama-Wasserman （N-W） ORs, which were calculated using Matlab and with a y crystal-oriented （001）γ[100]γ as the reference frame. The martensite OR in the Q-P-T steel follows both the K-S and N-W ORs; however, the K-S OR is predominant. This characteristic does not change in the samples further tempered at different temperatures.

Third generation high strength low alloy steels with improved toughness

On-line thermo mechanical controlled processing(TMCP) was conducted to develop the third generation high strength low alloy(HSLA) steel with high toughness economically.The ultra-low carbon content ensured a high level of upper shelf energy while ultrafine lath martensitic structure transformed from super-thin pancaked austenite during controlled rolling and cooling.The reduction of martensite block size decreased ductile-to-brittle transition temperature(DBTT) and compensated the strength loss due to carbon reduction.Consequently,the excellent balance of strength and toughness values was obtained as 950-1060 MPa for yield strength,180 J for Charpy V-notch impact absorbed energy at 30℃,which is much superior to that of traditional martensitic steel.Two mechanisms for the refinement of lath martensite block were proposed:One is the austenite grain refinement in the direction of thickness,and the other is the reduction in the fraction of sub-block boundaries with small misorientation and the increase in the fraction of block boundaries with large misorientation,possibly due to austenite hardening.

The Construction of a Discourse System for Literature Research in Contemporary China

The construction of the literature research discourse in the seven decades since the foundation of the PRC has shown an upward spiral, from 'state/collective discourse' to 'society/individual discourse' and thence to 'world/human discourse.' These related but different discourses have worked together to facilitate literary writing and literature research. During the last 70 years of literature research, the Marxist theory of literature and art has always played a guiding role. Having close links with Chinese literary practice, Marxist theory has had a fundamental impact on the construction of the Chinese literature research discourse system. The emergence of 'state/collective discourse,' 'society/individual discourse' and 'world/human discourse' is an integral, historical, logical and dynamic process. Chinese literature research discourse should be constantly innovated and developed with a vision that looks to the world and the future, in order to contribute Chinese wisdom to dialogues between different academic discourses in the world and thus demonstrate the unique value of Chinese academic research in the humanities.