摘要：We studied the reliability of machine components with parameters that follow an arbitrary statistical distribution using the principle of maximum entropy(PME).We used PME to select the statistical distribution that best fits the available *** also established a probability density function(PDF)and a failure probability model for the parameters of mechanical components using the concept of entropy and the *** obtained the first four moments of the state function for reliability analysis and ***,we attained an estimate of the PDF with the fewest human bias factors using the *** function was used to calculate the reliability of the machine components,including a connecting rod,a vehicle half-shaft,a front axle,a rear axle housing,and a leaf spring,which have parameters that typically follow a non-normal *** were conducted for *** study provides a design methodology for the reliability of mechanical components for practical engineering projects.

摘要：Inordertominimizethenormalerrorsoftheprofileofthecylindercam,thatarebroughtinbytools'radialerrorsinthemachiningprocess,anewmachiningmethod,optimalcontrolmethod,***followerasanexample,thenormalerrorsofthecamprofilearisingfromtheoptimalcontrolmachiningprocessisdiscussedbyusingspatialmeshingtheory,andasimpleandconciseapproximateformulatocalculatenormalerro

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摘要：Nowadays, lighting design is the modern attractive field of professional activity. Although its theoretical and methodological bases are in the initial stage of formulation. Though there are standards for regulating illumination quantitatively, the science has never created a bridge to transfer illumination quantity into illumination quality. How to keep a day image of architectural object without imitating natural lighting？ How unrecognizably to change the image, to make it extraordinary and catchy？ This paper offers a solution in the form of external illumination designing principles. This paper proposes two conceptual ways of creating artificial lighting of buildings and constructions that pursue different goals： the principle of ＂tectonic＂ illumination and the principle of ＂decorative＂ illumination. These principles were developed based on the analysis of the state of the art experience of lighting architectural objects and author＇s empirical study. The latter contained measuring luminosity with luminance meter, processing the data, statistical survey （180 respondents） and lighting modeling in the laboratory of Moscow Architectural Institute.

摘要：This paper proposes the notion of cross-cultural communication translatology,discusses its theories and principles,and explores its *** points out that cross-cultural communication translatology is a multi-disciplinary and multi-field research,which draws ideas from a number of relevant academic disciplines and fields in its theoretical development and practical operations.

摘要：In the 21st century, soft power has become an important element to evaluate a nation’s comprehensive strength. Meanwhile, as an indispensable part of soft power, national image receives more and more attention on the political stage. Since Chinese President Xi Jinping’s speeches have unique features and greatly reflect positive national images of China, many scholars start to analyze them from diversified perspectives. Based on Du Bois’ theory of “the Stance Triangle” and the Indexicality principle, taking President Xi Jinping’s speech at the opening ceremony of the Belt and Road Forum for International Cooperation for example, this paper expounds how President Xi achieves the evaluation, position, and alignment between the subject and object by means of overt labeling, implicature and presupposition, covert evaluation statement, and ideology-laden linguistic structure, in order to establish China’s national image. Through the analysis, the author intends to figure out how national leaders use various persuasive methods to achieve their political purpose. And the author hopes this thesis can provide a new perspective for further analysis on national leaders’ speeches.

摘要：The study,using an interlanguage corpus,investigates how international students in China acquire“prepositional phrase-verb”word *** found that students whose mother tongue features VO and OV word order mostly produce pre-placement structure of“prepositional phrase+verb”,which is similar to Chinese word order and hence reflects an overt influence of the target ***,when producing post-placement structure of“verb+prepositional phrase”,VO type L1 speaking students slightly outnumber those OV type L1 speaking students,which indicates limited influence of L1 *** addition,other factors such as the relator principle and the temporal iconicity principle also exert certain influence on the word order acquisition of“prepositional phrase-verb”structure.

摘要：A quasi-optical dielectric lens used for W-band focal plane array passive imaging has been developed. The imaging system requires the lens to form beam spot with 3 dB width less than 35 mm at distance of 3500 mm. The powerful optical design software ZEMAX was utilized to design the contours of the lens, and numerical method based on ray tracing and Huygens’ principle was processed to verify the design result. Measurement result shows that the 3 dB width of the beam spot formed by the lens is 34 mm at distance of 3460 mm, and the beam pattern on imaging plane are equally arranged and the intensity decreases only 0.55 dB while the object lateral deviation increases to 300 mm.

摘要：This paper is concerned with the optimal design of an obstacle located in the viscous and incompressible fluid which is driven by the steady-state Oseen equations with thermal effects. The structure of shape gradient of the cost functional is derived by applying the differentiability of a minimax formulation involving a Lagrange functional with a space parametrization technique. A gradient type algorithm is employed to the shape optimization problem. Numerical examples indicate that our theory is useful for practical purpose and the proposed algorithm is feasible.

摘要：This article proves the existence of a hyper-precise global numerical meta-architecture unifying, structuring, binding and controlling the billion triplet codons constituting the sequence of single-stranded DNA of the entire human genome. Beyond the evolution and erratic mutations like transposons within the genome, it’s as if the memory of a fossil genome with multiple symmetries persists. This recalls the “intermingling” of information characterizing the fractal universe of chaos theory. The result leads to a balanced and perfect tuning between the masses of the two strands of the huge DNA molecule that constitute our genome. We show here how codon populations forming the single-stranded DNA sequences can constitute a critical approach to the understanding of junk DNA function. Then, we suggest revisiting certain methods published in our 2009 book “Codex Biogenesis”. In fact, we demonstrate here how the universal genetic code table is a powerful analytical filter to characterize single-stranded DNA sequences constituting chromosomes and genomes. We can then show that any genomic DNA sequence is featured by three numbers, which characterize it and its 64 codon populations with correlations greater than 99%. The number “1” is common to all sequences, expressing the second law of Chargaff. The other 2 numbers are related to each specific DNA sequence case characterizing life species. For example, the entire human genome is characterized by three remarkable numbers 1, 2, and Phi = 1.618 the golden ratio. Associated with each of these three numbers, we can match three axes of symmetry, then “imagine” a kind of hyperspace formed by these codon populations. Then we revisit the value (3-Phi)/2 which is probably universal and common to both the scale of quarks and atomic levels, balancing and tuning the whole human genome codon population. Finally, we demonstrate a new kind of duality between “form and substance” overlapping the whole human genome: we will show that—simult