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1.
In this paper, the influence of working electrolyte on high-frequency electrical performance of wet tantalum capacitors is studied. Emphasis is especially put on the study of the contribution of depolariser in reducing Equivalent Series Resistance(ESR). According to the theory of depolarization in electrochemistry and the theory of cathode capacitance of electrolytic capacitor, different kinds of depolarisers are added separately into the foregone electrolyte. Then capacitors are assembled with tantalum cores dipped with the compounded electrolytes. The best depolariser and its concentration in the whole electrolyte could be selected according to the test results of the capacitance and ESR of the capacitors. The results of our experiment show that depolariser Fe2 (SO4)3 used in working electrolyte of 100 V/IO0 μF wet tantalum capacitors can help to obtain lower ESR and higher capacitance at frequency from 0.1 kHz to 100 kHz. 相似文献
2.
FU Xiao-qiu 《海外英语》2015,(6)
This article discusses the importance of theory and paradigm to a researcher. It starts from introducing and analyzing the definition of the two terms, by using the theories in the field of intercultur... 相似文献
3.
朱芳 《读与写:教育教学刊》2010,7(3):27-29
The object of this paper is to study the translatability of culture through the enlightenment from Legge's translation of Lun Yu.A critical study of Legge's translation from a cultural angel is made before two principles peculiar to the translation of Chinese classics are proposed.The combination of classiczing and orientalizing the English language should be strived for in the translation of Chinese classics,and at the same time,it is of great significance to observe rather than break the limit of translatability. 相似文献
4.
Many scholars have contributed to the research of Empty Categories since 1980s; however, most of them just concentrated on PRO, pro and variable, with little attention paid to NP-trace. Under the theoretical framework of GB theory, this paper will make a comparative study on NP-trace between English and Chinese from the aspect of Binding theory, the restrictions on NP-movement, and the motivation for NP-movement, in order to find out whether the NP-trace in Chinese is the same as or different from that in English, the result of which may indicate some syntactic features of the two languages. 相似文献
5.
The theory of Speech Act is one which analyses the role of utterancesin relation to the behaviour of speaker and hearer in interpersonal comm-unication.It was originally put forward by John Langs haw Austin.a pro-fossor philosphy at Oxford University.In 1955,he gave a serics of lectu-res at Harvard University in U.S.A,and after his death,the written s-cripts of his lectures were published(1962)with the title How to Do T-hings with words.The theory aroused wide interests among the Linguisticphilosophers.Late,Searle and Grice,two ther philosophers made furthercontributions to the theory. 相似文献
6.
This thesis aims at exploring meanings of different addresses and their correct and suitable translations in both Chinese and English. After the introduction to the definition and meaning of addresses, the whole thesis probes into this problem from two aspects: the reasons which lead to the differences in addresses among relatives in both Chinese and English, and the ways how to translate addresses properly according to the situations. With the exploration, the writer hopes to introduce the cultural differences from the perspective of translations of addresses. 相似文献
7.
Aiming at difficulties for Chinese students to learn English,based on phonology theory,this article compares the Chinese tone with English intonation from various aspects,the finding is that the two language families have a great difference in intonation;intonation is put to use without high proficiency for students due to the influence of Chinese tone and its simplified pedagogy. 相似文献
8.
This article attempts to apply skopos theory and make a comparative study of the translation compensation methods of two English versions of Hong Lou Meng in terms of four-character chengyu from the linguistic perspective. 相似文献
9.
News is closely related with people’s lives and has the function of describing facts and conveying messages to the pub lic.News is required to be true,swift and accurate and has formed its own language system.Based on the experiential function theory of functional grammar and its main device-transitivity,this thesis analyzes the transitivity processes in the two disaster news samples and two celebrity news samples from New York Times.It will further prove the applicability and operability of transi tivity theory in news analysis. 相似文献
10.
A Künstlerroman is a literary genre that focuses on the psychological and moral growth of the protagonist from youth to adulthood, and in which character change is thus extremely important. A portrait of the artist as a young man as a Künstlerroman also shows the growth process of the protagonist from childhood to youth. The paper aims to point out the growth process of the protagonist focusing on the text. Especially, from the two aspects: content and form. The content and the form together reflect the growth process of the protagonist and the development of his personality, so we also see the protagonist was destined to be mature and at last decided to escape his home, exile himself and began his new life with the purpose of art. 相似文献
11.
In the framework of metaphor theory,this paper tries to research conversions from animal nouns to verbs in English,and aims to help English learners to better understand this language phenomenon.First the paper explores the motivations of this language phenomenon,and points out that verbs converted from animal nouns can help enrich the vocabulary,make the expression vivid and concise,and achieve certain pragmatic effects as well.Second,it studies the mechanisms of the conversion by analyzing the mapping process and similarities between two domains.Last it points out the importance of the context and the geographic factor in understanding verbs converted from animal nouns. 相似文献
12.
INTRODUCTION A traditional premise in the theory of com-posites is the continuity of tractions and displace-ments at constituent interfaces. However, the in-terfaces are generally weaker than the plies inlaminates, which then frequently suffer from failure(such as delamination, interlaminar slip, etc.) due tohigh stress concentration at the interfaces. Beforethe final failure, these interfaces are usuallyweakened and become imperfect due to the emer-gence of microcracks. There are nu… 相似文献
13.
INTRODUCTION In formal language theory,most language gen-erative devices are based on the operation of rewriting,but,two other operations can also play the same role:insertion and deletion operation,originally motivated mainly from linguistics.Because the phenomena that is similar to these operations has been found in DNA operations,these two language operations have come to the special attention of researchers in the DNA computing area.For a given string xuvy,an insertion operation(u,w… 相似文献
14.
Some researches have been conducted concerning the Markedness Theory about the marked and the unmarked, from aspects of Phonetics, Grammar, Pragmatic, Psycholinguistic and Sociolinguistic. Few researches have combined the Markedness Theory with literature theories and even no research has been done to study the Feminism Theory from the perspective of the Markedness Theory. This paper discusses markedness theory with regard to two basic issues: Why it is ok to say"历史"in Chinese, but the equivalent in English is"history", not"*herstory". Why the meaning of"governor"and"governess"is distinctively different? No research concerning the issues from the perspective of markedness has been conducted yet. This paper gives a brief review of the studies concerning the Markedness Theory, on the basis of which the question is aroused. 相似文献
15.
In the paper’ Development and social competence after two years for students enrolled in inclusive and self-contained educational programs’, forty students in two groups are assessed across two years of inclusive and self-contained educational programming respectively in order to compare the outcomes on measures of child development and social competence. In this paper, the educational research mentioned above will be conceptualised from three aspects. Firstly, the foundations of the research will be identified from an epistemological and ontological perspective. Secondly, a critical appraisal will be given regarding the relationships between research,theory and practice in the paper. Finally, ethical challenges and issues in the paper will be pointed out and possible solutions proposed. 相似文献
16.
LU Bao - qi 《上海大学学报(英文版)》2005,9(4):365-368
Infrared (IR) absorption spectra and X-ray powder diffraction (XRD) patterrns of sexpenfine cat's eye from Sichuan Province have been investigated, and infrared absorption bands of the serpentine have been assigned in this paper. The results indicate that the bands near 3 600 - 3 700 cm^-1 belong to the stretching absorption band VOH, the bands in 948 - 1 100 cm^-1 axe assigned to the stretching vibraling band Usvo, and the bands at 600 570 and 440 cm^-1 respectively belong to the bending vibration band VOH, δMg-O and δSi-O. The serpentine cat' s eye includes two types: chrysotile and antigorite. Chrysotile has a sharp and intensive band at 3 688 cm^-1 and a weak band at 3 643 cm^-1 , while antigorite has only one intensive band in the region. At vibration band VSi-O, chrysotile and antigorite have a similar feature at 1 071 cm^-1, but the band at 980 cm^-1 in anfigorite has been split into two bands in chrysotile - a strong one at 1 027 cm^-1 and a weak one at 949 cm^-1. In addition, antigorite has a characteristic bending vibrating band δMg-O at 570 cm^-1. Based on the analysis of the feature of crystal structure, their IR differences axe well explained. 相似文献
17.
Love and moral are the main themes of Iris Murdoch’ s literary works.As the combination of the two main themes,her Eros theory plays a significant role in her works.On the basis of her personal perception of Platonic Eros and Freudian Eros,Murdoch establishes her own Eros Theory.To unveil this important theory,this paper tries to trace the sources of Murdoch’ s Eros theory from Platonic Eros and Freudian Eros. 相似文献
18.
Meaola Amituanai-Toloa Stuart McNaughton Mei Kuin Lai 《美中教育评论》2009,6(6):23-36
This paper examines language development of Samoan students in bilingual contexts in Aotearoa, New Zealand. In the absence of valid and standardized assessments tools in Samoan, one was designed to test reading comprehension and oral language development for Samoan students using common narratives as a base. For reading comprehension, the tool used a listening comprehension format to avoid possible decoding limitations and provided a gradient of difficulty with a surprising drop in both oral and reading comprehension at year 7. This drop was attributed to a change in competencies of some students entering the bilingual classroom at year 7. For example, the mixed levels of both L 1 (Samoan) oral and L1 (Samoan) reading comprehension within and across years of schooling likely reflects the varied provision in the Samoan bilingual classes and the variations across cohorts in different degrees of bilingualism. We argue that this might be due to the make up of the two schools of which one was an Intermediate school of years 7 and 8 students and, the other was a full primary school with students from years 4 to 8. The patterns suggest two general instructional needs in Samoan bilingual classrooms. One is the need to develop metacognitive components and the need for deliberate and explicit instruction to build awareness of strategies and effectiveness. The other is the ubiquitous need identified in reading comprehension instruction generally to develop vocabulary both through oral and written forms. There was a highly significant relationship between L 1 oral at L1 reading comprehension levels reflecting a general relationship found in other studies of monolingual in L2 (English) contexts. 相似文献
19.
The daily management of college on the one hand is to constrain the action of students to achieve the maintenance of school’s order and on the other hand is to help students develop good habits and remold certain concepts of laws, morality and discipline to finally achieve the goal of education. This paper employed a famous theory of management, that is, the"broken window theory"in the research and finally concluded that the application of"broken window theory"in the daily management of colleges can immediately and effectively prevent some of students’bad behaviors and habits from being spread. 相似文献
20.
Knitted fabric is very different from woven fabric due to its more complicated knitting structures. The buckling of knitted fabric sheets subjected to simple shear in the wale direction is investigated analytically in consideration of the large deformation of fabric sheet in critical configuration. The theory on instability of finite deformation is applied to the analysis. All the stress boundary conditions of knitted fabric sheet are satisfied. An equation to determine the buckling direction angle is derived. It is shown that there are two possible buckling modes, flexural mode and barreling mode. The buckling condition equations for the flexural mode and barreling mode are also obtained respectively. Numerical illustrations reveal that only the flexural mode can actually occur and the barreling mode cannot, which agrees with the experimental observations. For a permitted buckling mode on margin boundaries, the critical value of shear amount and the buckling direction angle can be determined. 相似文献