Analysis on the Core Theory of Mechanical Abstractive Design

2013 ◽  
Vol 481 ◽  
pp. 268-271
Author(s):  
Xia Yang

ive Design Xia Yang Luzhou Vocational and Technical College, Luzhou, Sichuan, 646005, China [email protected] Keywords: Machinery; Abstraction; Design; Core Theory; Analysis. Abstract. The theory of mechanical abstractive design is the newest mechanical design concept at present. Lots of software achieve a certain degree of intelligence with the development of computer technology. And the processing efficiency is improved to a great deal through intelligent processing. Many suggestions for reference can be proposed during the processing. The study is based on the concept and characteristics of mechanical design. And the core theory of mechanical abstractive design, such as intelligence, automatic modeling and relative abstraction, was analyzed combined with the implication of abstractive design. Thus, a certain degree of reference is hopefully provided for the pragmatic design work.

2011 ◽  
Vol 71-78 ◽  
pp. 1411-1420
Author(s):  
Cheng Zhang ◽  
Si Wei Wang

Nowadays, Underground space exploitation is one of the directions of the main focus in the construction of Hangzhou. This paper comprehensively introduces the schematic design of the underground space exploitation of Hangzhou east station, combined with the underground space development project of the core area in Hangzhou eastern new city zone. Firstly, the background of the surrounding area is discussed to illuminate the important status of the core area of eastern new city zone in Hangzhou’s future construction. Then, the holistic design concept and construction goal of the underground space exploitation of the core area are presented, and its functions and layout are clarified focusing on the railway construction and circumjacent exploitation project of Hangzhou east station. Lastly, the executive plan about the underground space exploitation of the core area of Hangzhou eastern new city zone is expatiated comprehensively.


Author(s):  
Johan Dib ◽  
Ivan Lewon ◽  
Boris Martin

Using classical Finite Element (FE) tools to model heat exchangers emphasizes the need to elaborate specific methods to reduce the size of the numerical problem. Among these methods, homogenization techniques can be adapted and used for Brazed Aluminum Plate-Fins Heat Exchangers (BAHX) including layers of periodic structures. Actually the core is formed by stacking single layers consisting of periodic corrugated fins, side-bar and parting sheets which are all made of aluminum base metals, and brazed in a furnace. So in this paper a global methodology of BAHX modeling and design is presented. It integrates homogenization techniques to perform FE calculation and localization techniques to allow applying the appropriate design criteria. Finally, to validate this methodology, results are then compared on a basic heat exchanger modeled both by classical FE tools and a dedicated software tool encapsulating both homogenization and localization techniques.


Author(s):  
Nahid Heidari ◽  
Hossein Afrasiabi ◽  
Seyed Reza Javadiana

Background: Child abuse has destructive consequences for the abused and the abuser which can launch a cycle of inter-generational violence. Our aim was to understand the constructions of child abuse by adult parents. Methods: The research was carried with generic (basic) qualitative research method. Participants included 12 adults who abused their children during the recent year(2020) at Yazd City. The adult participants were selected by snowball-purposeful sampling. The data were collected through semi-structured interviews and analyzed with grounded theory analysis method. Results: After analyzing transcribes, 6 main categories were constructed: abuse transmission, suffered self, normative violence, relationship problems, institutional inefficiency and pressured family. Life world of harassment emerged as the core category. Conclusion: The findings presented the cycle of abuse created through learning and transmitting.


1999 ◽  
Author(s):  
R. F. Li ◽  
Y. Frostig ◽  
G. A. Kardomateas

Abstract Delaminations within the face sheets are often observed when a sandwich structure is exposed to impact loads. The buckling and postbuckling behavior of sandwich beams with delaminated faces is investigated in this work. The governing nonlinear equations, boundary conditions, and continuity conditions are formulated through variational principles. The beam construction consists of upper and lower, metallic or composite laminated symmetric skins, and a soft core of a foam or low strength honeycomb type. A high order theory is used for the core that accounts for the nonlinear distortion of the plane of section of the core and the compressibility in the vertical direction. The delamination considered is an interface crack, in which the substrate includes the transversely flexible core. The case of a debond at one of the skin-core interfaces is also included. The effects of the delamination length and location on the overall and local behavior are examined with an arbitrary initial imperfection.


Author(s):  
David Huron

A brief review is provided of sixteen core traditional rules of voice leading as formulated in the late Baroque period. These rules are typically taught as part of the core theory curriculum in conservatories and schools of music.


Author(s):  
Georges Rey

The book is divided into three parts1. Part I provides a somewhat novel exposition and defense of what I regard as the core ideas of a Chomskyan linguistic theory; Part II, a discussion of some of the core philosophical claims that surround it; and Part III, a more contentious discussion of the ultimate problem that concerns me: whether and how the core theory is committed to a philosophically troublesome notion of intentionality that is associated with the near ubiquitous term “representation.” The last chapter will conclude with a brief critical discussion of a few further philosophical views that Chomsky has expressed regarding the mind–body problem, which many might—mistakenly—take to be essential to his theory....


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