scholarly journals The Evolution from Digital Mock-Up to Digital Twin

2020 ◽  
Author(s):  
Sheng Dai ◽  
Gang Zhao ◽  
Yong Yu ◽  
Qiangwei Bao
Keyword(s):  
Literature Review ◽  
Detailed Analysis ◽  
Digital Twin ◽  
Digital Product ◽  
Product Definition ◽  
Development And Evolution

This paper summarizes the development and evolution from digital mock-up (DMU) to digital twin (DT) by clarifying the connotation of DT from prospective of digital product definition (DPD). Firstly, taking Airbus as example, the evolution of DMU is introduced, with the detailed analysis of configured DMU, functional DMU, and industrial DMU. Secondly, based on the literature review of DT, the definition, purpose and several applications of DT concept are clearly expounded. Finally, the augmentation for DT and DPD’s relationship are deduced.

Spinal Cord Stimulation: A Contemporary Series

Neurosurgery ◽  
1991 ◽  
Vol 28 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Roberto Spiegelmann ◽  
William A. Friedman
Keyword(s):  
Spinal Cord ◽  
Chronic Pain ◽  
Pain Relief ◽  
Literature Review ◽  
General Anesthesia ◽  
Detailed Analysis ◽  
Spinal Cord Stimulation ◽  
Significant Pain ◽  
Experience Pain

Abstract Forty-three patients with chronic pain disorders of different causes were selected for spinal cord stimulation. All underwent implantation of a ribbon electrode through a small laminotomy, under general anesthesia. Thirteen patients (30%) failed to obtain significant pain relief during a period of trial stimulation, and their electrodes were removed. The remainder underwent a definitive implant and were followed for a mean of 13 months (range, 3-33 months). Nineteen of them (63%) continued to experience pain relief. A detailed analysis of this series, as well as a literature review, is presented.

scholarly journals Sustainability Requirements of Digital Twin-Based Systems: A Meta Systematic Literature Review

2021 ◽  
Vol 11 (12) ◽  
pp. 5519
Author(s):  
Rui Carvalho ◽  
Alberto Rodrigues da Silva
Keyword(s):  
Life Cycle ◽  
Literature Review ◽  
Systematic Literature Review ◽  
Environmental Sustainability ◽  
Product Life Cycle ◽  
Data Communication ◽  
Three Dimensions ◽  
Digital Twin ◽  
The Subject ◽  
Reducing Costs

Sustainable development was defined by the UN in 1987 as development that meets the needs of the present without compromising the ability of future generations to meet their own needs, and this is a core concept in this paper. This work acknowledges the three dimensions of sustainability, i.e., economic, social, and environmental, but its focus is on this last one. A digital twin (DT) is frequently described as a physical entity with a virtual counterpart, and the data, connections between the two, implying the existence of connectors and blocks for efficient and effective data communication. This paper provides a meta systematic literature review (SLR) (i.e., an SLR of SLRs) regarding the sustainability requirements of DT-based systems. Numerous papers on the subject of DT were also selected because they cited the analyzed SLRs and were considered relevant to the purposes of this research. From the selection and analysis of 29 papers, several limitations and challenges were identified: the perceived benefits of DTs are not clearly understood; DTs across the product life cycle or the DT life cycle are not sufficiently studied; it is not clear how DTs can contribute to reducing costs or supporting decision-making; technical implementation of DTs must be improved and better integrated in the context of the IoT; the level of fidelity of DTs is not entirely evaluated in terms of their parameters, accuracy, and level of abstraction; and the ownership of data stored within DTs should be better understood. Furthermore, from our research, it was not possible to find a paper discussing DTs only in regard to environmental sustainability.

Digital twin application in the construction industry: A literature review

2021 ◽  
pp. 102726
Author(s):  
De-Graft Joe Opoku ◽  
Srinath Perera ◽  
Robert Osei-Kyei ◽  
Maria Rashidi
Keyword(s):  
Literature Review ◽  
Construction Industry ◽  
Digital Twin

scholarly journals Digital Twin in manufacturing: A categorical literature review and classification

2018 ◽  
Vol 51 (11) ◽  
pp. 1016-1022 ◽  
Author(s):  
Werner Kritzinger ◽  
Matthias Karner ◽  
Georg Traar ◽  
Jan Henjes ◽  
Wilfried Sihn
Keyword(s):  
Literature Review ◽  
Digital Twin

The Definition of 3D Full-Information Model of Aircraft Machining Parts

2011 ◽  
Vol 148-149 ◽  
pp. 1464-1467
Author(s):  
Li Gang Qu ◽  
Shuang Zheng ◽  
Xiao Guang Han
Keyword(s):  
Information Model ◽  
Basic Theory ◽  
Digital Manufacturing ◽  
Full Information ◽  
Digital Product ◽  
Frame Work ◽  
Traditional Manufacturing ◽  
Definition Of ◽  
Product Definition ◽  
Tree Method

In order to construct the frame-work of digital product definition for airplane lifecycle, the basic theory and technical hierarchy of the definition of 3D full-information model have been introduced, and the corresponding full-information model is established in the tree method. The result of this work will be the transforming power from traditional manufacturing to digital manufacturing pat-tern.

scholarly journals A Breeze' of Cubism at the Reggio Emilia Schools: "Mirror Triangle"

2015 ◽  
Vol 3 (2) ◽  
pp. 34
Author(s):  
İffet Aksoy Tokgöz ◽  
Akın Cem Tokgöz
Keyword(s):  
Literature Review ◽  
Reggio Emilia ◽  
Geometric Objects ◽  
Pedagogical Research ◽  
Descriptive Method ◽  
Development And Evolution

Education and art movements, which are common development and evolution tools for societies, have been affected by communities as much as they have affected one another. This affection, continues in a supporting way for decades just as in the spring of 1945; Reggio Emilia Schools was started by the natives of the small village, called Villa Cella (located in 50 kilometers northwest of Reggio Emilia region), building a school for the infants, and gone well beyond being a socialist based dream of Malaguzzi becoming common pre-school institutions of the modern day. Just as Cubism which signifies the geometric objects which are able to present the topic with its different aspects simultaneously. The research, aims to reveal 'a breeze' of Cubism at the Reggio Emilia Schools as an example of "mirror triangle". As for the methodology, literature review orientated for the art movement and education; descriptive method of the non-experimental pedagogical research .

scholarly journals Method of Buildings Structural Vulnerability and Geometry Form Designs Evaluation Towards Earthquakes With The SVA Architectural Design

2020 ◽  
Vol 2 (2) ◽  
pp. 53-66
Author(s):  
Livian Teddy ◽  
Gagoek Hardiman ◽  
N. Nuroji ◽  
Sri Tudjono
Keyword(s):  
Literature Review ◽  
Detailed Analysis ◽  
Architectural Design ◽  
Special Method ◽  
Early Prediction ◽  
Structural Vulnerability ◽  
Building Geometry ◽  
Building Designs

In the process of architectural design, there is no special method employed by architects to evaluate buildings’ structural vulnerability and building geometry form designs towards earthquakes. Therefore, the alternative is adapting the existing method called SVA-Retrofit. JBDPA and Matsutaro Seki developed this method, and then the author adapted this method now called SVA Architectural Design. In the process of adaptation, deep literature review was conducted in order to acquire the adaptation results of the SVA-Architectural Design. These results can furthermore be an early prediction of structural vulnerability toward earthquakes that eventually leads to finding solutions for building designs or conducting detailed analysis done by structure experts.

scholarly journals Pasture feeding associations of european white stork Ciconia Ciconia Ciconia with herbivorous mammals and agricultural machinery: historical and geographical aspects

2021 ◽  
pp. 39-52
Author(s):  
Александр Геннадиевич Резанов ◽  
Любовь Васильевна Маловичко ◽  
Андрей Александрович Резанов
Keyword(s):  
Literature Review ◽  
Detailed Analysis ◽  
Middle Eastern ◽  
White Stork ◽  
Extensive Literature ◽  
Agricultural Machinery ◽  
European Origin ◽  
Ciconia Ciconia ◽  
Herbivorous Mammals ◽  
Anthropogenic Modifications

На основе обширных литературных данных и авторского материала представлен детальный анализ современного географического распространения пастбищных кормовых ассоциаций европейского белого аиста Ciconia ciconia ciconia с крупными травоядными млекопитающими и сельскохозяйственной техникой. Ассоциации белого аиста с землеобрабатывающей и уборочной сельскохозяйственной техникой оцениваются как антропогенные модификации кормового поведения. Рассмотрен историко-географический аспект происхождения кормовых ассоциаций белого аиста с дикими травоядными млекопитающими и домашним скотом. Предложена гипотеза независимого африканского, ближневосточного и европейского происхождения пастбищных кормовых ассоциаций белого аиста. Based on the extensive literature review and original observations, a detailed analysis of the modern geographical distribution of pasture forage associations of the European white stork Ciconia ciconia ciconia with large herbivorous mammals and agricultural machinery is presented. Associations of the white stork with land and harvesting agricultural machinery are evaluated as anthropogenic modifications of forage behavior. The historical and geographical aspect of the origin of feedingr associations of the white stork with wild herbivorous mammals and livestock is considered. The hypothesis of independent African, Middle Eastern and European origin of pasture forage associations of the white stork is proposed.

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