scholarly journals ENHANCEMENT OF EXTERNAL WALL DECORATION MATERIAL FOR THE BUILDING IN SAFETY INSPECTION METHOD

2020 ◽  
Vol 26 (3) ◽  
pp. 216-226 ◽  
Author(s):  
Nai-Hsin Pan ◽  
Ching-Hsiang Tsai ◽  
Kuei-Yuan Chen ◽  
Jessie Sung
Keyword(s):  
High Resolution ◽  
Visual Inspection ◽  
Evaluation Method ◽  
Visual Detection ◽  
Evaluation Process ◽  
Visual Evaluation ◽  
Inspection Method ◽  
External Wall ◽  
Image Recording ◽  
Detection Technology

As buildings wear out, external wall tiles or attachments will usually fall off, sometimes causing human injuries. At present, the method employed for middle-high rise buildings is mainly the method of visual inspection. The inspection results in using this method are affected by the factors of subjectivity, safety and cost. This study aims to provide a lowercost and more efficient evaluation method for inspecting the status of buildings’ external walls. This proposed method implements Forward Looking Infrared (FLIR) technology and high-resolution photographic equipment on Unmanned Aerial Vehicle (UAV) which can improve the image recording of the detection process, as well as the overall visual detection technology, and solve the existing visual detection problem of inspectors. Also, the images detected by visual inspection and UAV high-resolution video are used to develop a suitable visual evaluation process and test table for external walls. Through the test results of several cases, the deterioration status and needs for maintenance are taken into account according to the degree of performance indicators. The findings of the study is that the proposed mechanism is more efficient and lower cost for the detection of external walls or ancillary structures’ abnormal status, which is easy to use in practice.

scholarly journals Co-seismic surface effects from very high resolution panchromatic images: the case of the 2005 Kashmir (Pakistan) earthquake

2011 ◽  
Vol 11 (3) ◽  
pp. 931-943 ◽  
Author(s):  
M. Chini ◽  
F. R. Cinti ◽  
S. Stramondo
Keyword(s):  
High Resolution ◽  
Urban Areas ◽  
Visual Inspection ◽  
Satellite Images ◽  
Surface Effects ◽  
Automatic Classification ◽  
The Other ◽  
Inspection Method ◽  
Panchromatic Image ◽  
Very High

Abstract. The use of Very High Resolution (VHR) satellite panchromatic image is nowadays an effective tool to detect and investigate surface effects of natural disasters. We specifically examined the capabilities of VHR images to analyse earthquake features and detect changes based on the combination of visual inspection and automatic classification tools. In particular, we have used Quickbird (0.6 m spatial resolution) images for detecting the three main co-seismic surface features: damages, ruptures and landslides. The present approach has been applied to the 8 October 2005, Mw7.6 Kashmir, Pakistan, earthquake. We have focused our study in and around the main urban areas hit by the above earthquake specifically at Muzaffarabad and Balakot towns. The automatic classification techniques provided the best results wherever dealing with the damage to man-made structures and landslides. On the other hand, the visual inspection method demonstrated in addressing the identification of rupture traces and associated features. The synoptic view (concerning landslide, more than 190 millions of pixels have been automatically classified), the spatiotemporal sampling and the fast automatic damage detection using satellite images provided a reliable contribution to the prompt response during natural disaster and for the evaluation of seismic hazard as well.

Study on Fuzzy Comprehensive Evaluation of External Wall Thermal Insulation and Energy-Saving Technology

2011 ◽  
Vol 71-78 ◽  
pp. 1435-1439
Author(s):  
Shu Guo Zhang ◽  
Yan Fang ◽  
Jun Ju Jia
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Process ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
External Wall ◽  
Energy Saving Technique ◽  
Technique Evaluation

The current evaluation process of architecture external wall thermal insulation energy-saving has met the problems such as information incompleteness and fuzziness. In order to solve the problems, the fuzzy comprehensive evaluation method is used, and the external wall thermal insulation energy-saving technique evaluation index system is set. And the method is adopt to compare between the walls using and not using the technology. The result shows that the evaluation of the external wall using thermal insulation energy-saving technique is obviously better than the result of the external wall not using the technique, so the thermal insulation energy-saving material should be promoted and applied nation-widely.

scholarly journals Photo-Based Evaluation: A Method for Participatory Evaluation With Adolescents

2021 ◽  
pp. 109821402092778
Author(s):  
Deinera Exner-Cortens ◽  
Kathleen C. Sitter ◽  
Marisa Van Bavel ◽  
Alysia Wright
Keyword(s):  
Health Promotion ◽  
Evaluation Method ◽  
Prevention Programs ◽  
Research Process ◽  
Youth Engagement ◽  
Youth Health ◽  
Visual Evaluation ◽  
Healthy Relationships ◽  
Visual Research ◽  
Translation Tools

Actively engaging adolescents in meaningful program evaluation is a topic of growing interest. One possibility for such engagement is the use of photographs as part of visual evaluation, so that youth can directly engage with the research process. In this Method Note, we describe the development and implementation of a participatory, photo-based evaluation method for youth health promotion/prevention programs. Youth in this study were participants in a gender-transformative healthy relationships program for boys. We present literature supporting the use of photographs as a visual research method and for involving youth as active participants in evaluation, and explore the feasibility, utility, and acceptability of this innovative application of existing methods based on researcher experience and youth feedback. We conclude with implications for photo-based evaluation of health promotion/prevention programs, highlighting the promise of this method for promoting critical youth engagement in evaluation and the creation of meaningful knowledge translation tools.

Comparison of Papanicolaou Test With Visual Detection Tests in Screening for Cervical Cancer and Developing the Optimal Strategy for Low Resource Settings

2010 ◽  
Vol 20 (5) ◽  
pp. 862-868 ◽  
Author(s):  
Pakhee Aggarwal ◽  
Swaraj Batra ◽  
Gauri Gandhi ◽  
Vijay Zutshi
Keyword(s):  
Cervical Cancer ◽  
Predictive Value ◽  
Visual Inspection ◽  
Visual Detection ◽  
Alternative Methods ◽  
Papanicolaou Test ◽  
Low Resource Settings ◽  
Low Resource ◽  
The Mean ◽  
Sensitivity Specificity

Objectives:To compare the sensitivity, specificity, positive and negative predictive values, and accuracy of Papanicolaou test with visual inspection with acetic acid (VIA)/VIA using magnification devices (VIAM) and develop the best strategy for screening in low resource settings.Materials and Methods:This is a prospective cross-sectional study on 408 symptomatic multiparous women in the reproductive age group, sequentially using the Papanicolaou test, the VIA, and the VIAM for screening. Women with a positive screening test underwent guided biopsy and endocervical curettage. The site of biopsy was recorded. Histopathological findings were taken as the "gold" standard in comparing the methods.Results:The mean (SD) age was 32.3 (6.8) years (range, 15-49 years), whereas the mean (SD) parity was 2.9 (1.2) (range, 1-9). Abnormal cytological findings were detected in 2.9% patients, whereas the remaining smears were negative for any intraepithelial lesion or malignancy. A total of 113 cases were screened positive by one/all methods. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of the Papanicolaou test, the VIA, and the VIAM were 24, 98, 42, 96, and 94%; 95, 78, 19, 99, and 79%; and 95, 78, 19, 99, and 79%, respectively, for high-grade lesions.Conclusions:The Papanicolaou test had low sensitivity but high specificity, whereas visual detection methods had a high sensitivity in addition to being cheaper. Alternative methods of screening such as VIA/VIAM can be a valuable alternative to the Papanicolaou test for cervical cancer screening in low resource settings. Visual inspection using magnification devices may be of benefit over VIA in doubtful cases.

Image-Based Comprehensive Maintenance and Inspection Method for Bridges Using Deep Learning

2018 ◽  
Author(s):  
Xuefeng Zhao ◽  
Shengyuan Li ◽  
Hongguo Su ◽  
Lei Zhou ◽  
Kenneth J. Loh
Keyword(s):  
Neural Network ◽  
Deep Learning ◽  
Convolutional Neural Network ◽  
Visual Inspection ◽  
Health State ◽  
Bridge Management ◽  
Inspection Method ◽  
Maintenance Work ◽  
Maintenance And Inspection ◽  
Fine Turning

Bridge management and maintenance work is an important part for the assessment the health state of bridge. The conventional management and maintenance work mainly relied on experienced engineering staffs by visual inspection and filling in survey forms. However, the human-based visual inspection is a difficult and time-consuming task and its detection results significantly rely on subjective judgement of human inspectors. To address the drawbacks of human-based visual inspection method, this paper proposes an image-based comprehensive maintenance and inspection method for bridges using deep learning. To classify the types of bridges, a convolutional neural network (CNN) classifier established by fine-turning the AlexNet is trained, validated and tested using 3832 images with three types of bridges (arch, suspension and cable-stayed bridge). For the recognition of bridge components (tower and deck of bridges), a Faster Region-based Convolutional Neural Network (Faster R-CNN) based on modified ZF-net is trained, validated and tested by utilizing 600 bridge images. To implement the strategy of a sliding window technique for the crack detection, another CNN from fine-turning the GoogLeNet is trained, validated and tested by employing a databank with cropping 1455 raw concrete images into 60000 intact and cracked images. The performance of the trained CNNs and Faster R-CNN is tested on some new images which are not used for training and validation processes. The test results substantiate the proposed method can indeed recognize the types and components and detect cracks for a bridges.

Visual Evaluation of Cast Dental Alloys Welds Discontinuities in the Field of Fixed Prosthodontics

2011 ◽  
Vol 383-390 ◽  
pp. 4058-4064
Author(s):  
Sorin Porojan ◽  
Liliana Sandu ◽  
Florin Topală
Keyword(s):  
Laser Welding ◽  
Base Metal ◽  
Visual Inspection ◽  
Incomplete Fusion ◽  
Weld Quality ◽  
Dental Alloys ◽  
Visual Evaluation ◽  
Fixed Prosthodontics ◽  
Microplasma Welding

It is essential for a weld to satisfy the requirements of certain standards in the field where it is applied. The aim of the study was to highlight the discontinuities which can appear in the joints achieved by laser and microplasma welding of base metal dental alloys used in fixed prosthodontics. All types of discontinuities which are visible from visual inspection were searched: inclusions, inadequate joint penetration, incomplete fusion, undercuts, overlaps, underfills. Recognizing the defects and discontinuities and their delimitation was essential in determining the weld quality. The obtained results were satisfactory for the purpose both for microplasma and laser welding. Using these methods, welds without defects, which meet minimum acceptable standards for each case, could be obtained.

scholarly journals Comparison between ultra-high-resolution computed tomographic angiography and conventional computed tomographic angiography in the visualization of the subcallosal artery

2021 ◽  
Vol 12 ◽  
pp. 528
Author(s):  
Yoshimichi Sato ◽  
Toshiki Endo ◽  
Shingo Kayano ◽  
Hitoshi Nemoto ◽  
Kazuki Shimada ◽  
...  
Keyword(s):  
High Resolution ◽  
Evaluation Method ◽  
Computed Tomographic Angiography ◽  
Anterior Communicating Artery ◽  
Exact Test ◽  
Computed Tomographic ◽  
Small X ◽  
Tomographic Angiography ◽  
Better Than

Background: The subcallosal artery (ScA) is a single dominant artery arising from the anterior communicating artery. Its injury causes amnesia and cognitive disturbance. The conventional computed tomographic angiography (C-CTA) is a common evaluation method of the intracranial artery. However, to image tinny perforating arteries such as the ScA is technically demanding for C-CTA. The purpose of this study is to investigate whether the ultra-high-resolution CTA (UHR-CTA) could image the ScA better than C-CTA. UHR-CTA became available in clinical practice in 2017. Its novel features are the improvement of the detector system and a small X-ray focus. Methods: Between April 2019 and May 2020, 77 and 49 patients who underwent intracranial UHR-CTA and C-CTA, respectively, were enrolled in this study. Two board-certified neurosurgeons participated as observers to identify the ScA based on UHR-CTA and C-CTA images. Results: UHR-CTA and C-CTA detected the ScA in 56–58% and 30–40% of the patients, respectively. In visualization of the ScA, UHR-CTA was better than C-CTA (P < 0.05, Fisher’s exact test). Between the two observers, the Cohen’s kappa coefficient was 0.77 for UHR-CTA and 0.78 for C-CTA. Conclusions: UHR-CTA is a simple and accessible method to evaluate intracranial vasculature. Visualization of the ScA with UHR-CTA was better than that with C-CTA. The high quality of UHR-CTA could provide useful information in the neurosurgery field.

Research on Comprehensive Evaluation of Service Capability of the Third-Party Logistics Suppliers with AHP and Gray Entropy Theory

2021 ◽  
Author(s):  
Jun Li ◽  
Xuhua Pan ◽  
Mingxiao Li ◽  
Gang Wang ◽  
Zhixin Zhang
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Evaluation Process ◽  
Third Party ◽  
Third Party Logistics ◽  
Comprehensive Service ◽  
Service Capability ◽  
Capability Evaluation

To solve the problem of third-party logistics (3PL) evaluation and selection, a hybrid method with AHP and gray theory is proposed. First, the literature review about the 3PL evaluation method and technology is introduced. Furthermore, TPL comprehensive service capability evaluation system is established from aspects of service, time, cost and enterprise qualification. Besides, a comprehensive evaluation model process with gray entropy and AHP is introduced. Finally, a detailed evaluation process of 3PL supplier service capability in F company is introduced by an example, and the results show that the evaluation method in the paper is helpful to choose the TPL for logistics outsourcing.

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