Experiment of Electrical Fire Burned Copper Wire and Parameters Analysis on Metallographic Test of Melted Mark

AbstractHeat treatment experimental simulation of the actual situation of the electrical fire melted mark was carried out; the metallograph of copper wire after heating was obtained, and verified with the actual case. And then using digital image processing software to grain size, that in a certain temperature range, the relation between average size and heated temperature was curve; particle size increases with the increase of heating time; water cooling, air cooling, furnace cooling conditions, the grain increases by followed

Translation of Chapter Titles from the Perspective of Sociosemiotics

A chapter title as the title for every chapter in a chapter novel is to introduce the whole chapter. A research will be made on the translation techniques of chapter title from the perspective of Sociosemiotics. Sociosemiotics as an interdisciplinary science is dedicated to the research on the relationship between systems of signs and human society. Moreover, Sociosemiotics views language as the most comprehensive system of signs in the human society. Compared with other linguistic theories, Sociosemiotics pays more attention to the application of symbolic systems in society. In the practical translation process, translators should place linguistic signs in the social situation besides the infl uence of internal factors, thus facilitating a more comprehensive research. The paper integrates Sociosemiotics -- three meanings proposed by Morris Charles, namely, referential meaning, linguistic meaning and pragmatic meaning) into the chapter title translation firstly by taking the chapter titles of four Chinese classic novels as examples to explore the translation techniques of chapter titles, and comes to the conclusion: translation techniques such as literal translation, addition and substitution are favorable to transfer referential meaning; translation technique such as conversion is more appropriate to transfer linguistic meaning; as for pragmatic meaning, the technique of free translation is an ideal choice.Key words: Chapter title; Sociosemiotics; Referential meaning; Linguistic meaning; Pragmatic meaning; Translation technique

STEADY-STATE ANALYSIS OF THE GI/M/1 QUEUE WITH MULTIPLE VACATIONS AND SET-UP TIME

In this paper, we consider a GI/M/1 queueing model with multiple vacations and set-up time. We derive the distribution and the generating function and the stochastic decomposition of the steady-state queue length, meanwhile, we get the waiting time distributions. Key words: multiple vacations, set-up time, stochastic decompositio

Effects of losses in the hybrid atom-light interferometer

Enhanced Raman scattering can be obtained by injecting a seeded light field which is correlated with the initially prepared collective atomic excitation. This Raman amplification process can be used to realize atom-light hybrid interferometer. We numerically calculate the phase sensitivities and the signal-to-noise ratios of this interferometer with the method of homodyne detection and intensity detection, and give their differences between this two methods. In the presence of loss of light field and atomic decoherence the measure precision will be reduced which can be explained by the break of the intermode decorrelation conditions of output modesComment: 9 pages, 7 figure

4-Chloro-5-[(5,5-dimethyl-4,5-dihydro­isoxazol-3-yl)sulfonyl­meth­yl]-3-methyl-1-(2,2,2-trifluoro­ethyl)-1H-pyrazole

The mol­ecule of the title compound, C12H15ClF3N3O3S, is twisted, as indicated by the C—S—C—C torsion angle of 66.00 (18)° for the atoms linking the ring systems. An intra­molecular C—H⋯F short contact occurs. In the crystal, non-classical C—H⋯O inter­actions, one of which has a short H⋯O contact of 2.28 Å, link the mol­ecules

A PD Law Based Fuzzy Logic Control Strategy For Simultaneous Control Of Indoor Temperature And Humidity Using A Variable Speed Direct Expansion Air Conditioner

In small to medium scale buildings located in the subtropics, such as Hong Kong, direct expansion air conditioning (DX A/C) systems are widely applied. This is because, as compared to chilled water based central air conditioning systems, DX A/C systems are compact, flexible for multi-room services, energy efficient and cost less to maintain and operate. However, traditionally, a DX A/C system is equipped with a single-speed compressor and supply air fan, and employs ON / OFF control strategy to maintain indoor air temperature only, leaving the indoor moisture content (or relative humidity) uncontrolled. With the introduction of variable speed technology, the speeds of compressor and supply air fan can be varied continuously so as to realize the simultaneous control of the indoor temperature and humidity. In this paper, the development of a novel control strategy based on PD law and fuzzy logic is reported. The compressor speed was adjusted directly according to the indoor air moisture content and supply air fan speed according to the indoor air temperature, respectively, to realize the simultaneous control of indoor air temperature and humidity. Controllability tests for the novel control strategy were carried out and the test results suggested that, although two control loops for temperature and humidity were significantly coupled, the simultaneous control of indoor temperature and humidity was achieved with respect to control accuracy and sensitivity

3,9-Dichloro-2,4,8,10-tetra­oxa-3,9-di­phosphaspiro­[5.5]undecane-3,9-dione

In the title compound, C5H8Cl2O6P2, the two six-membered rings display chair conformations. The P=O bond distances are 1.444 (2) and 1.446 (2) Å. Weak inter­molecular C—H⋯O hydrogen bonds are present in the crystal structure