State-of-the-art non-destructive methods for diagnostic testing of building structures – anticipated development trends

Nowadays there are many diagnostic methods for the detection of different defects in building structures. Destructive methods, which do not enable purposeful redevelopment action or a potential cause prediction of the defect without damage to the structure, are mostly used. Lock-in thermography is based on the modulation of the controlled heat flow, which impact on the diagnosed object. Heat (usually sinusoidal) wave penetrates inside the element and in the place of environmental change, ie. anomalies / deviations in the structure of the material of the tested object are reflected back to the surface. The paper focuses on the possibility of using lock-in thermography in the detection of various defects in building structures.

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Machine Vision for Ripeness Estimation in Viticulture Automation

Horticulturae ◽

10.3390/horticulturae7090282 ◽

2021 ◽

Vol 7 (9) ◽

pp. 282

Author(s):

Eleni Vrochidou ◽

Christos Bazinas ◽

Michail Manios ◽

George A. Papakostas ◽

Theodore P. Pachidis ◽

...

Keyword(s):

Machine Vision ◽

Fruits And Vegetables ◽

State Of The Art ◽

Cost Effective ◽

Future Trends ◽

Broad Area ◽

Wide Range ◽

Key Factor ◽

Non Destructive ◽

Destructive Methods

Ripeness estimation of fruits and vegetables is a key factor for the optimization of field management and the harvesting of the desired product quality. Typical ripeness estimation involves multiple manual samplings before harvest followed by chemical analyses. Machine vision has paved the way for agricultural automation by introducing quicker, cost-effective, and non-destructive methods. This work comprehensively surveys the most recent applications of machine vision techniques for ripeness estimation. Due to the broad area of machine vision applications in agriculture, this review is limited only to the most recent techniques related to grapes. The aim of this work is to provide an overview of the state-of-the-art algorithms by covering a wide range of applications. The potential of current machine vision techniques for specific viticulture applications is also analyzed. Problems, limitations of each technique, and future trends are discussed. Moreover, the integration of machine vision algorithms in grape harvesting robots for real-time in-field maturity assessment is additionally examined.

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Non-destructive methods for measuring chloride ingress into concrete: State-of-the-art and future challenges

Construction and Building Materials ◽

10.1016/j.conbuildmat.2014.06.009 ◽

2014 ◽

Vol 68 ◽

pp. 68-81 ◽

Cited By ~ 82

Author(s):

M. Torres-Luque ◽

E. Bastidas-Arteaga ◽

F. Schoefs ◽

M. Sánchez-Silva ◽

J.F. Osma

Keyword(s):

State Of The Art ◽

Chloride Ingress ◽

Future Challenges ◽

Non Destructive ◽

Destructive Methods

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A Review of the State-of-Art, Limitations, and Perspectives of Machine Vision for Grape Ripening Estimation

Engineering Proceedings ◽

10.3390/engproc2021009002 ◽

2021 ◽

Vol 9 (1) ◽

pp. 2

Author(s):

Eleni Vrochidou ◽

Christos Bazinas ◽

George A. Papakostas ◽

Theodore Pachidis ◽

Vassilis G. Kaburlasos

Keyword(s):

Machine Vision ◽

State Of The Art ◽

The State ◽

Wine Industry ◽

Ripening Stage ◽

Robotic Automation ◽

Non Destructive ◽

State Of Art ◽

Destructive Methods ◽

Critical Aspects

This work highlights the most recent machine vision methodologies and algorithms proposed for estimating the ripening stage of grapes. Destructive and non-destructive methods are overviewed for in-field and in-lab applications. Integration principles of innovative technologies and algorithms to agricultural agrobots, namely, Agrobots, are investigated. Critical aspects and limitations, in terms of hardware and software, are also discussed. This work is meant to be a complete guide of the state-of-the-art machine vision algorithms for grape ripening estimation, pointing out the advantages and barriers for the adaptation of machine vision towards robotic automation of the grape and wine industry.

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Main Provisions Of The Concept Of Technology Of Diamond Cutting And Drilling Of Building Structures

Promyshlennoe i Grazhdanskoe Stroitel stvo ◽

10.33622/0869-7019.2019.06.59-63 ◽

2019 ◽

pp. 59-63

Keyword(s):

Combustion Engine ◽

Front Surface ◽

The Body ◽

Building Structures ◽

Diamond Cutting ◽

Variable Diameter ◽

Diamond Drilling ◽

Single Structure ◽

New Construction ◽

Non Destructive

The main provisions of the concept of technology of diamond cutting and drilling of building structures are considered. The innovativeness of the technology, its main possibilities and advantages are presented. Carrying out works with the help of this technology in underwater conditions expands its use when constructing and reconstructing hydraulic structure. The use of diamond drilling equipment with motors equipped with an internal combustion engine is considered. Drilling holes with a variable diameter during the reconstruction of the runways of airfields makes it possible to combine the landing mats into a single structure. The ability to cut inside the concrete mass, parallel to the front surface, has no analogues among the methods of concrete treatment. The use of this technology for producing blind openings in the body of concrete without weakening the structure is also unique. Work with precision quality in cutting and diamond drilling of concrete and reinforced concrete was noted by architects and began to be implemented in the manufacture of inter-room and inter-floor openings. Non-destructive approach to the fragmentation of building structures allows them to be reused. The technology of diamond cutting and drilling is located at the junction of new construction, repair, reconstruction of buildings and structures, and dismantling of structures. Attention is paid to the complexity and combinatorial application of diamond technology. Economic efficiency and ecological safety of diamond technology are presented. The main directions of further research for the development of technology are indicated.

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Recommendations for non-destructive methods of test for concrete

10.3403/00049314u ◽

2015 ◽

Keyword(s):

Non Destructive ◽

Destructive Methods

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Recommendations for non-destructive methods of test for concrete

10.3403/00049302 ◽

1969 ◽

Keyword(s):

Non Destructive ◽

Destructive Methods

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State of the art in rapid paper tests for COVID-19 and coronaviruses

Journal of Materials Chemistry B ◽

10.1039/d1tb00674f ◽

2021 ◽

Author(s):

Delyan Hristov ◽

Jose Gomez-Marquez ◽

Djibril Wade ◽

Kimberly Hamad-Schifferli

Keyword(s):

Global Health ◽

State Of The Art ◽

Diagnostic Testing ◽

Diagnostic Assays ◽

Health Challenge ◽

Global Health Challenge

The COVID-19 pandemic has let to an unprecedented global health challenge, creating sudden, massive demands for diagnostic testing, treatment, therapies, and vaccines. In particular, the development of diagnostic assays for...

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