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Research on On-line Detecting Method and Key Technologies for Part Quality (Dimension and Surface Roughness

Chen Aidi,Wang Xinyi

Strategic Study of CAE 2000, Volume 2, Issue 12, Pages 73-77

Abstract: technologies for part quality, based on the analysis of methods and features of on-line detecting of part dimensionand surface roughness, an artificial neural network system for on-line detecting of part dimension andThe Scheme of on-line detecting method for part quality can detect part dimension and surface roughness

Keywords： on-line detecting neural network fuzzy neural network dimension precision surface roughness

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Optimal slot dimension for skirt support structure of coke drums

Edward WANG, Zihui XIA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4, Pages 554-562 doi: 10.1007/s11465-018-0513-y

Abstract:

The skirt-to-shell junction weld on coke drums is susceptible to fatigue failure due to severe thermal cyclic stresses. One method to decrease junction stress is to add slots near the top of the skirt, thereby reducing the local stiffness close to the weld. The most common skirt slot design is thin relative to its circumferential spacing. A new slot design, which is significantly wider, is proposed. In this study, thermal-mechanical elastoplastic 3-D finite element models of coke drums are created to analyze the effect of different skirt designs on the stress/strain field near the shell-to-skirt junction weld, as well as any other critical stress locations in the overall skirt design. The results confirm that the inclusion of the conventional slot design effectively reduces stress in the junction weld. However, it has also been found that the critical stress location migrates from the shell-to-skirt junction weld to the slot ends. A method is used to estimate the fatigue life near the critical areas of each skirt slot design. It is found that wider skirt slots provide a significant improvement on fatigue life in the weld and slot area.

Keywords： coke drum stress analysis cyclic stress fatigue life skirt slots

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Immunometabolism: a new dimension in immunotherapy resistance

Frontiers of Medicine 2023, Volume 17, Issue 4, Pages 585-616 doi: 10.1007/s11684-023-1012-z

Abstract: Herein, we elaborate potential mechanisms underlying immunotherapy resistance from a novel dimension

Keywords： immune cell immunometabolism metabolic reprogramming immunotherapy resistance tumor microenvironment immune checkpoint inhibitor

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Diagnosis method based on wavelet coefficient scale relativity correlation dimension for fault

GU Junjie, TIAN Jin, PENG Xuezhi

Frontiers in Energy 2008, Volume 2, Issue 2, Pages 164-168 doi: 10.1007/s11708-008-0031-4

Abstract: Correlation dimension as a tool to describe machinery condition is introduced.The correlation dimension is able to identify conditions of the fan with faults compared with the normal

Keywords： effective technology monitoring mechanical equipment relativity Correlation

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Structural dimension optimization and mechanical response analysis of fabricated honeycomb plastic pavement

Zixuan CHEN; Tao LIU; Xiao MA; Hanyu TANG; Jianyou HUANG; Jianzhong PEI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 7, Pages 896-908 doi: 10.1007/s11709-022-0856-7

Abstract: At present, most studies focus on the performance of plastic materials, however, the dimension optimizationSeveral dimension factors were taken into consideration including the side length, rib thickness, the, 12 cm top slab,18 cm side length and 6 cm rib thickness is recommended, additionally, an external dimension

Keywords： honeycomb structure plastic pavement dimension optimization mechanical response factor significance

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Do not let precision medicine be kidnapped

Zhiping Yang

Frontiers of Medicine 2015, Volume 9, Issue 4, Pages 512-513 doi: 10.1007/s11684-015-0425-8

Abstract:

Obama’s precision medicine initiative made the medical community boil over after the initiativePrecision medicine has been advocated by the majority of scientists and doctors.This article does not oppose precision medicine.However, the incentive of vigorously promoting precision medicine at present is a concern.

Keywords： precision medicine personalized medicine genomics

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Review on the progress of ultra-precision machining technologies

Julong YUAN, Binghai LYU, Wei HANG, Qianfa DENG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2, Pages 158-180 doi: 10.1007/s11465-017-0455-9

Abstract:

Ultra-precision machining technologies are the essential methods, to obtain the highest form accuracyThe conception, applications and history of ultra-precision machining are introduced in this article,and the developments of ultra-precision machining technologies, especially ultra-precision grinding,ultra-precision cutting and polishing are also reviewed.

Keywords： ultra-precision grinding ultra-precision cutting ultra-precision polishing research status in China development

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PD pattern recognition based on multi-fractal dimension in GIS

ZHANG Xiaoxing, YAO Yao, TANG Ju, ZHOU Qian, XU Zhongrong

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3, Pages 270-275 doi: 10.1007/s11465-008-0042-1

Abstract: The multi-fractal dimension is founded on the box-counting dimension and multi-fractal theories.The box-counting dimension, multi-fractal dimension, and discharge centrobaric characteristics of the

Keywords： substation high-speed discharge centrobaric network ultra-high frequency

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Understanding of a New Generation of Intelligent Manufacturing based on RAMI 4.0

Zhao Min

Strategic Study of CAE 2018, Volume 20, Issue 4, Pages 90-96 doi: 10.15302/J-SSCAE-2018.04.015

Abstract:

In order to gain a deeper understanding of the significance of the Chinese Academy of Engineering's "China Intelligent Manufacturing Development Strategy Research Report Based on the New Generation of Artificial Intelligence", the author adopts the method of deconstruction and reconstruction, to analyze the Reference Architecture Model of Industrial 4.0 (RAMI 4.0) of Germany, and compared with the general architecture of intelligent manufacturing proposed in the report of the Chinese Academy of Engineering, and similarities and differences of each other are found. It is believed that the general architecture of the intelligent manufacturing in China is superior in intelligence. This is the Chinese contribution to the development of intelligent manufacturing. At the same time, the analysis deepens the understanding of the both architectures.

Keywords： cyber-physics system (CPS) basic paradigm new-generation artificial intelligence architecture technical dimension organizational dimension value dimension

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Self-generation of machining precision and its realization in lapping of super precision solid balls

ZHANG Bopeng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3, Pages 348-353 doi: 10.1007/s11465-008-0065-7

Abstract: This paper presents the principle of self-generation of machining precision by explaining its basic conceptThe self-generation of machining precision for solid balls with super precision is emphatically explainedNecessary conditions for achieving self-generation of machining precision are given.Establishment of the system for machining solid balls with super precision is discussed.Self-generation of machining precision for solid balls with super precision on the basis of the capability

Keywords： self-generation necessary self-regulation capability viewpoint Necessary

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Temporal dimension and water quality control in an emission trading scheme based on water environmental

Zhaoxing HAN, Zhenyao SHEN, Yongwei GONG, Qian HONG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1, Pages 119-129 doi: 10.1007/s11783-011-0272-z

Abstract: study, a new emission trading scheme was addressed based on WEFZ, accounting for both the temporal dimensionThe calculated temporal dimension and water quality control were located in Dongxi River of the Daning

Keywords： emission trading water functional zone water quality control

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Human pangenome: far-reaching implications in precision medicine

Frontiers of Medicine doi: 10.1007/s11684-023-1039-1

Abstract: Human pangenome: far-reaching implications in precision medicine

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Design and analysis of a class of redundant collaborative manipulators with 2-dimension large rotational

Xiaodong JIN, Yuefa FANG, Dan ZHANG, Xueling LUO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1, Pages 66-80 doi: 10.1007/s11465-019-0570-x

Abstract: Translation) parallel spindle heads and the corresponding collaborative 5-axis manipulators with 2-dimensionIn order to construct 2D rotational degrees of freedom (DOF), a platform with 2-dimension revolute joints

Keywords： parallel mechanism redundant mechanism large rotational angles machine tools 2R1T spindle head collaborative manipulator

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Highlights in precision agriculture

Chunjiang ZHAO, Minzan LI

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 4, Pages 391-392 doi: 10.15302/J-FASE-2018246

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High resolution satellite imaging sensors for precision agriculture

Chenghai YANG

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 4, Pages 393-405 doi: 10.15302/J-FASE-2018226

Abstract:

The central concept of precision agriculture is to manage within-field soil and crop growth variabilityRemote sensing has been an integral part of precision agriculture since the farming technology startedagricultural applications over large geographic areas since the 1970s, but they have limited use for precisionaerial coverage, make high resolution satellite sensors attractive for many applications, including precisionThe applications of these sensors for precision agriculture are reviewed and application examples based

Keywords： high resolution satellite sensor multispectral imagery precision agriculture spatial resolution temporal