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A discussion of objective function representation methods in global optimization

Panos M. PARDALOS, Mahdi FATHI

Frontiers of Engineering Management 2018, Volume 5, Issue 4, Pages 515-523 doi: 10.15302/J-FEM-2018044

Abstract:

Non-convex optimization can be found in several smart manufacturing systems. This paper presents a short review on global optimization (GO) methods. We examine decomposition techniques and classify GO problems on the basis of objective function representation and decomposition techniques. We then explain Kolmogorov’s superposition and its application in GO. Finally, we conclude the paper by exploring the importance of objective function representation in integrated artificial intelligence, optimization, and decision support systems in smart manufacturing and Industry 4.0.

Keywords： global optimization decomposition techniques multi-objective DC programming Kolmogorov’s superposition space-filling

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Hierarchical fractal structure of perfect single-layer graphene

T. Zhang, K. Ding

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 371-382 doi: 10.1007/s11465-013-0279-1

Abstract: The interior fractal-type structure was discovered to be the fifth space-filling curve from physical

Keywords： hierarchical fractal structure fractal dimension the fifth space-filling curve multi-fractal structure

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Premature melt solidification during mold filling and its influence on the as-cast structure

M. WU, M. AHMADEIN, A. LUDWIG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 53-65 doi: 10.1007/s11465-017-0437-y

Abstract:

Premature melt solidification is the solidification of a melt during mold filling.experimental results is achieved by considering the effect of premature melt solidification during mold filling

Keywords： premature solidification mold filling as-cast structure modeling

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Evaluation method of dam behavior during construction and reservoir filling and application to real dams

Yuji KOHGO, Akira TAKAHASHI, Tomokazu SUZUKI,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1, Pages 92-101 doi: 10.1007/s11709-010-0009-2

Abstract: In this paper we analyzed a real fill-type dam, named the Minami-Aiki Dam, to verify a numerical consolidation method with an elastoplastic model for unsaturated soils. The validities were conducted by comparing the analyzed and measured values during construction and impounding. The settlements calculated showed good agreement to those observed. Though the changing patterns of the measured and calculated pore water pressures were similar, the amounts of pore water pressures induced by the self-weights of embankment and the dissipation speeds were different. The earth pressures measured at the bottom of the core zone showed good agreement with those calculated. This method is valid for estimating behavior of fill-type dams during construction and impounding.

Keywords： fill dam consolidation analysis unsaturated geo-materials impounding construction

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Numerical simulation of compaction parameters for sand-filled embankment using large thickness sand filling

Wentao WANG, Chongzhi TU, Rong LUO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4, Pages 568-576 doi: 10.1007/s11709-017-0444-4

Abstract: The study uses the finite element method to simulate a new technique of highway sand embankment fillingsimulation results indicate that the sand-filled layer thickness of 70 cm is suitable for the new sand filling

Keywords： sand embankment compaction in large thickness numerical simulation small size vibratory roller steady compaction

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Cancer and the environment: Filling knowledge gaps together

Linda S. BIRNBAUM PhD, DABT, ATS,

Frontiers of Medicine 2010, Volume 4, Issue 2, Pages 131-133 doi: 10.1007/s11684-010-0044-3

Abstract: When considering disease etiology, we need to view the role of the environment along the continuum from health to disease for individuals because we know that there are complex interactions between genes, their molecular expression, and environmental factors over a person’s lifetime. We clearly have huge gaps in our knowledge along this continuum, and these gaps are natural opportunities for research. There are many factors to consider as we assess the relationship between environmental exposures over a lifetime. One factor is persistence of chemicals that “live” beyond their initial intended use. Another factor is the fact that “inert ingredients” are not really inert. “Low dose” is also another consideration. We need to understand the biological effect of low dose exposure and we should clearly define what they mean by low dose research. For example, are we measuring the administered dose, or the internal/circulating dose? There are new types of toxicity as well. For example, endocrine disruptors and engineered nanomaterials are significant classes of materials deserving significant research. Timing of exposure is a significant feature in characterizing toxicity. Environmental exposures can have a greater impact in early or later life-stages. Finally, mixtures of chemicals are an important consideration. Humans are always exposed to multiple chemicals. In short, we must remember that there is no such thing as “not exposed.” Everyone has been exposed to many and various environmental agents.

Keywords： environment genes environmental exposure environmental agent persistence chemicals inert ingredients low dose

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Theoretical analysis and calculation for filling factor of solar cellvarying along with illumination

Ding Jinlei,ChengXiaofang,Zhai Zaiteng,Zha Jun,Mao Meiqin

Strategic Study of CAE 2007, Volume 9, Issue 6, Pages 82-87

Abstract: describing short circuit current, open circuit voltage, maximum power current, voltage and fillingThe relation of filling factor varying along with the illumination intensity is not a simple functional

Keywords： solar cell illumination intensity output characteristics filling factor

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The “Tiangong” Chinese Space Station project

Yang HONG

Frontiers of Engineering Management 2018, Volume 5, Issue 2, Pages 278-283 doi: 10.15302/J-FEM-2018202

Keywords： manned space station space station project basic design

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Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3, Pages 224-239 doi: 10.1007/s11709-012-0166-6

Abstract: Modern long-span space structures, developed during the 1970s and 1980s, are light and effective structuresFor the premodern space structures widely used since the mid-twentieth century (such as thin shells,space trusses, lattice shells and ordinary cable structures), new space structures have been developedstructures, including composite space trusses, open-web grid structures, polyhedron space frame structuresstructures, modern flexible space structures and modern rigid-flexible combined space structures.

Keywords： modern long-span space structures rigid space structures flexible space structures rigid-flexible combinedspace structures application and development

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Coordinated Development of Space Science, Space Technology, and Space Application in China

Zhou Jianping, Wu Ji

Strategic Study of CAE 2023, Volume 25, Issue 2, Pages 59-66 doi: 10.15302/J-SSCAE-2023.02.007

Abstract: historical reasons and investment restrictions, China’s aerospace industry initially focused on spacetechnology and application, with insufficient emphasis on space science; therefore, space science The development of space technology should be deeply integrated into space science and applicationThis study explores the implications of space science, space technology, and space application andworldwide and reviews the development situation of space-related fields in China.

Keywords： aerospace industry space science space technology space application coordinated development sharingof space data

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Exploration and research of space physics and space weather

Wang Chi

Strategic Study of CAE 2008, Volume 10, Issue 6, Pages 41-45

Abstract:

Space physics is a fast-growing cross-discipline science with the advanceSpace environment is becoming more and more important as the fourth living environment for human beingStarting from the early 1990s, space weather is born by applying the fundamentals of space physics toon our high-tech systems on the earth and in space.physics and space weather exploration and study, and introduces the suggested space physics and space

Keywords： space physics space weather space physics exploration strategic plan

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Research on Water Velocity in Filling up Section of Horizontal Pipe

Wang Dongmei,Zhang Shilin

Strategic Study of CAE 2005, Volume 7, Issue 2, Pages 66-68

Abstract:

The article divides the whole section into two sections. One is arcuate section. The other is seepage section. Water velocity distribution in circular section of pipe has been studied for a long time, and advanced theories were achieved. Based on fore theory and some tentatives, theory about distribution of water velocity in pipe of arcuate section is researched. Research of seepage section is based on seeping theory. Many experiments proved that the theory and program of this article are correct.

Keywords： arcuate section filling up bed water velocity zero shear point water-power gradient

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Development and application of the real-time monitoring system for filling construction process of high

Cui Bo,Hu Lianxing,Liu Donghai

Strategic Study of CAE 2011, Volume 13, Issue 12, Pages 91-96

Abstract:

In this paper, on the basis of research on high core rock-fill dam fillingmonitoring is determined; the solution scheme is proposed; the monitoring system of core rock-fill dam fillingprocess control architecture, achieving refining, all-whether and real-time control on key links of dam filling

Keywords： high core rock-fill dam filling construction process real-time monitoring transportation to dam rolling

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Research Status and Future Development of Deep Space Security

Wu Ke, Zhang Zhe, Yang Wenfei, He Jianfeng, Zhang Tianzhu, Jian Kangkang, Wu Weiren

Strategic Study of CAE 2022, Volume 24, Issue 4, Pages 240-248 doi: 10.15302/J-SSCAE-2022.04.023

Abstract: of four key deep space security issues: space radiation threat, planetary protection, space heritage, deep-space activities, and deep-space environmental threats.Deep-space security focuses on the four key issues, namely space radiation, planetary protection, spacespan>): (1) Deep-space resources include deep-space assets such as deep-space probes, Earth–moonthreat to the space activities of astronauts and the safe operation of space equipment in deep-space

Keywords： deep space security space radiation threat planetary protection space heritage protection space legislation

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National Fire Protection Association, Quincy, MA, 1995Study on smoke filling combined with sprinkler

Li Sicheng,Chen Ying,Hu Longhua,Huo Ran and Yang Dong

Strategic Study of CAE 2010, Volume 12, Issue 9, Pages 90-95

Abstract:

A mathematical model was developed for predicting smoke filling combinedExperiments were carried out to validate the model, with experimental results, smoke filling characteristicsResults showed that smoke filling velocity combined with sprinkler cooling and natural smoke exhaust

Keywords： fire protection engineering sprinkler spray sprinkler cooling natural smoke exhaust smoke filling