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1. Roller compaction: Improving the homogeneity of ribbon properties along the roller width

Author:
Omar, Chalak S.; Al-Asady, Riyadh B.; Salman, Agba D.
Source:
Powder technology 2019 v.342 pp. 464-474
ISSN:
0032-5910
Subject:
cameras,   etc   ; porosity; powders; temperature;     Show all 4 Subjects
Abstract:
... A new roller with a novel surface geometry was designed and used in this study in order to improve the uniformity of the stress distribution along the roller width. This was aimed to produce homogenous properties across ribbon width. The porosity distribution resulting from the applied stress, was correlated to the temperature distribution across the ribbon width using an online thermal camera. Us ...
DOI:
10.1016/j.powtec.2018.10.018

2. 3D experimental visualization of water flooding in proton exchange membrane fuel cells

Author:
Afra, Mehran; Nazari, Mohsen; Kayhani, Mohammad Hasan; Sharifpur, M.; Meyer, J.P.
Source:
Energy 2019 v.175 pp. 967-977
ISSN:
0360-5442
Subject:
cameras,   etc   ; catalysts; fuel cells; heat;     Show all 4 Subjects
Abstract:
... In Proton Exchange Membrane Fuel Cell (PEMFC) heat and water are generated as a side production. The accumulated water leads to a decrease in PEMFCs' efficiency. Hence, water has to be removed in order to prevent flooding inside the cell. In this study, by using experimental transparent Gas Diffusion Layer (GDL) water transport in PEMFC is visualized, and the capillary fingering mechanisms are stu ...
DOI:
10.1016/j.energy.2019.03.128

3. Field scene recognition for self-localization of autonomous agricultural vehicle

Author:
Morio, Yoshinari; Hanada, Yuya; Sawada, Yuta; Murakami, Katsusuke
Source:
Engineering in agriculture, environment and food 2019
ISSN:
1881-8366
Subject:
cameras,   etc   ; algorithms; artificial intelligence; roads;     Show all 4 Subjects
Abstract:
... In this study, a field scene recognition system was developed to estimate a self-position of a traveling vehicle along a farm road by using an original capture system with three cameras, a vector quantization method to express the features of field scenes, a machine learning based scene recognition algorithm, and a vehicle position estimation algorithm with an original voting method. The potential ...
DOI:
10.1016/j.eaef.2019.03.001

4. Effect of dynamic properties on density-driven granular segregation in a rotating drum

Author:
Liao, Chun-Chung
Source:
Powder technology 2019 v.345 pp. 151-158
ISSN:
0032-5910
Subject:
cameras,   etc   ; drums (equipment); powders; temperature;     Show all 4 Subjects
Abstract:
... In this study, we explored the density-induced segregation behavior caused by buoyancy of binary mixtures of particles that have varying densities in a rotating drum. We adopted a high-definition DV and high-speed camera to record particle motion. Image-processing technology and a particle-tracking method were used to identify the particles' segregation behavior and dynamic properties. The results ...
DOI:
10.1016/j.powtec.2018.12.093

5. Ignition sensitivity and flame propagation of zirconium powder clouds

Author:
Cao, Yong; Su, Hao; Ge, Lifang; Li, Yuyan; Wang, Yongxu; Xie, Lifeng; Li, Bin
Source:
Journal of hazardous materials 2019 v.365 pp. 413-420
ISSN:
0304-3894
Subject:
cameras,   etc   ; energy; furnaces; temperature; turbulent flow; zirconium;     Show all 6 Subjects
Abstract:
... The ignition sensitivity and flame propagation of zirconium powder clouds are investigated with the influence of initial turbulence. The effect of initial turbulence on the zirconium powder explosion is studied by the change of ignition delay time and dispersion pressure. Hartmann apparatus and Godbert-Greenwald furnace are used to evaluate the minimum ignition energy and minimum ignition temperat ...
DOI:
10.1016/j.jhazmat.2018.11.022

6. Automatic Sensor Orientation using Horizontal and Vertical Line Feature Constraints

Author:
Sun, Yanbiao; Robson, Stuart; Scott, Daniel; Boehm, Jan; Wang, Qiang
Source:
ISPRS journal of photogrammetry and remote sensing 2019
ISSN:
0924-2716
Subject:
cameras,   etc   ; aerial photography; geometry; sensors (equipment);     Show all 4 Subjects
Abstract:
... To improve the accuracy of sensor orientation using calibrated aerial images, this paper proposes an automatic sensor orientation method utilizing horizontal and vertical constraints on human-engineered structures, addressing the limitations faced with sub-optimal number of Ground Control Points (GCPs) within a scene. Related state-of-the-art methods rely on structured building edges, and necessit ...
DOI:
10.1016/j.isprsjprs.2019.02.011

7. Luminescence Lifetime Imaging of Chemical Sensors—A Comparison between Time-Domain and Frequency-Domain Based Camera Systems

Author:
Koren, Klaus; Moßhammer, Maria; Scholz, Vincent V.; Borisov, Sergey M.; Holst, Gerhard; Kühl, Michael
Source:
Analytical chemistry 2019 v.91 no.5 pp. 3233-3238
ISSN:
1520-6882
Subject:
cameras,   etc   ; dyes; image analysis; luminescence; oxygen; pH;     Show all 6 Subjects
Abstract:
... Luminescence lifetime based imaging is still the most reliable method for generating chemical images using chemical sensor technology. However, only few commercial systems are available that enable imaging lifetimes within the relevant nanosecond to microsecond range. In this technical note we compare the performance of an older time-domain (TD) based camera system with a frequency-domain (FD) bas ...
DOI:
10.1021/acs.analchem.8b05869

8. Motion of a Droplet on an Anisotropic Microgrooved Surface

Author:
Kumar, Manish; Bhardwaj, Rajneesh; Sahu, Kirti Chandra
Source:
Langmuir 2019 v.35 no.8 pp. 2957-2965
ISSN:
1520-5827
Subject:
cameras,   etc   ; anisotropy; contact angle; droplets; silicon; wafers;     Show all 6 Subjects
Abstract:
... We experimentally characterize the sliding angle of water droplets (volume 3.1–22.2 μL) migrating on inclined microgrooved surfaces along the longitudinal and transverse directions of the grooves. The rectangular microgrooves are manufactured on silicon wafers using standard photolithography techniques. We tilt the surface gradually using a rotating stage mechanism until the incipience of the slid ...
DOI:
10.1021/acs.langmuir.8b03604

9. A novel ultra-thin flattened heat pipe with biporous spiral woven mesh wick for cooling electronic devices

Author:
Zhou, Wenjie; Li, Yong; Chen, Zhaoshu; Deng, Liqiang; Gan, Yunhua
Source:
Energy conversion and management 2019 v.180 pp. 769-783
ISSN:
0196-8904
Subject:
cameras,   etc   ; copper; electronic equipment; heat transfer; permeability;     Show all 5 Subjects
Abstract:
... In this work, a novel biporous spiral woven mesh wick is developed to enhance the thermal performance of an ultra-thin flattened heat pipe for cooling high heat flux electronic devices. The biporous wick with different sized pores is hybrid woven using 0.05 and 0.04 mm diameter copper wires in every strand. Three different structures are designed to study the effect of the characteristic parameter ...
DOI:
10.1016/j.enconman.2018.11.031

10. Quantitative interpretation of images of long-nosed potoroos at baited camera-traps: defining a ‘visit’

Author:
Jarman, Peter; Driessen, Michael
Source:
Australian mammalogy 2019 v.41 no.1 pp. 147-149
ISSN:
0310-0049
Subject:
cameras,   etc   ; Potoroidae; bait traps; image interpretation; probability;     Show all 5 Subjects
Abstract:
... We devised a way to distinguish separate visits by animals to a camera station. The probability that an image of a long-nosed potoroo (Potorous tridactylus) would occur declined with time since the last potoroo image, reaching an asymptote after 5min at a level that may represent the probability of initiation of new visits. ...
DOI:
10.1071/AM17057

11. Evaluating methods for detecting and monitoring pangolin (Pholidata: Manidae) populations

Author:
Willcox, Daniel; Nash, Helen C.; Trageser, Scott; Kim, Hyeon Jeong; Hywood, Lisa; Connelly, Ellen; Ichu Ichu, Godwill; Kambale Nyumu, Jonas; Mousset Moumbolou, Carla Louise; Ingram, Daniel J.; Challender, Daniel W.S.
Source:
Global ecology and conservation 2019 v.17 pp. e00539
ISSN:
2351-9894
Subject:
camera trapping; cameras,   etc   ; Manidae; cost effectiveness; dogs; habitats; interviews; population density; surveys; systematic review; wildlife; Asia;     Show all 12 Subjects
Abstract:
... The behaviours, ecologies and morphologies of pangolins make them challenging to survey and monitor, and non-targeted wildlife surveys have not produced robust status assessments, especially where population densities are low because of overexploitation. To inform the development of feasible survey and monitoring techniques for pangolins, we conducted a systematic review of all traceable efforts u ...
DOI:
10.1016/j.gecco.2019.e00539

12. A novel approach for simulation of curling behavior of knitted fabric based on mass spring model

Author:
Mozafary, Vajiha; Payvandy, Pedram; Rezaeian, Mehdi
Source:
The journal of the Textile Institute 2018 v.109 no.12 pp. 1620-1641
ISSN:
1754-2340
Subject:
cameras,   etc   ; fabrics; models;     Show all 3 Subjects
Abstract:
... Edge curling is a unique property of knitted fabrics which affects on fashion such as using upper and side curling in cloth design. The purpose of this research is to present a new method to simulate drape behavior of knitted fabric considering difference between single and double jersey knitted fabrics. To this point, at first the bending and torsion moments that applied on the fabric edges and c ...
DOI:
10.1080/00405000.2018.1453635

13. Are camera traps fit for purpose? A rigorous, reproducible and realistic test of camera trap performance

Author:
Apps, Peter; McNutt, John Weldon
Source:
African journal of ecology 2018 v.56 no.4 pp. 710-720
ISSN:
0141-6707
Subject:
cameras,   etc   ; animals; models;     Show all 3 Subjects
Abstract:
... Camera traps are now widely used to produce the data that inform critical, large‐scale conservation strategies, but insufficient attention has been paid to evaluating or validating their performance. A realistic, reproducible and rigorous test of camera trap performance has been developed, using a real animal target moving in different directions and at different distances from sets of up to six c ...
DOI:
10.1111/aje.12573

14. Detection of aeolian transport in coastal images

Author:
Williams, Isaac A.; Wijnberg, Kathelijne. M.; Hulscher, Suzanne. J.M.H.
Source:
Aeolian research 2018 v.35 pp. 47-57
ISSN:
1875-9637
Subject:
cameras,   etc   ; automation; remote sensing;     Show all 3 Subjects
Abstract:
... Optical remote sensing provides a low cost method of documenting surface conditions over extended periods of time. Its utility in resolving large scale aeolian transport events is examined in this paper. To this end, over 1800 images taken over a three month period by a stationary camera in a coastal setting are classified as containing/ not containing aeolian transport using both a manual and aut ...
DOI:
10.1016/j.aeolia.2018.09.003

15. Experimental investigation of cavity length pulsation characteristics of jet pumps during limited operation stage

Author:
Wang, Jiong; Xu, Shuangjie; Cheng, Huaiyu; Ji, Bin; Zhang, Junqiang; Long, Xinping
Source:
Energy 2018 v.163 pp. 61-73
ISSN:
0360-5442
Subject:
cameras,   etc   ; equipment performance; pumps;     Show all 3 Subjects
Abstract:
... Experiments were conducted to investigate the cavity length pulsation characteristics in jet pumps with different area ratios during limited operation stage. Images of various cavitating flows were captured and analyzed to study the cavity length pulsation characteristics by high speed camera technology. It was found that the development tendency of time-averaged cavity length can be divided into ...
DOI:
10.1016/j.energy.2018.08.035

16. Intelligent recognition of dominant colors for Chinese traditional costumes based on a mean shift clustering method

Author:
Xing, Le; Zhang, Jie; Liang, Hui’e; Li, Zhongjian
Source:
The journal of the Textile Institute 2018 v.109 no.10 pp. 1304-1314
ISSN:
1754-2340
Subject:
cameras,   etc   ; algorithms; color; fabrics;     Show all 4 Subjects
Abstract:
... Chinese traditional costumes have been recognized as one of the most influential sources for Western designers to obtain oriental inspirations and create Asian chic, especially the dominant colors and design style. In this paper, an effective color clustering method based on Mean shift clustering algorithm is developed for Chinese traditional costumes image. The proposed method consists of four st ...
DOI:
10.1080/00405000.2018.1423896

17. Focus model for metric depth estimation in standard plenoptic cameras

Author:
Pertuz, Said; Pulido-Herrera, Edith; Kamarainen, Joni-Kristian
Source:
ISPRS journal of photogrammetry and remote sensing 2018 v.144 pp. 38-47
ISSN:
0924-2716
Subject:
cameras,   etc   ; image analysis; models;     Show all 3 Subjects
Abstract:
... In recent years, a lot of efforts have been devoted to the problem of depth estimation from lightfield images captured by standard plenoptic cameras. However, most of the metric depth estimation methods in the state-of-the-art leverage pixel disparity only. In this paper, we tackle the problem of focus-based metric depth estimation in standard plenoptic cameras. For this purpose we propose a close ...
DOI:
10.1016/j.isprsjprs.2018.06.020

18. Effects of injection pressure on ignition and combustion characteristics of impinging diesel spray

Author:
Du, Wei; Zhang, Qiankun; Zhang, Zheng; Lou, Juejue; Bao, Wenhua
Source:
Applied energy 2018 v.226 pp. 1163-1168
ISSN:
0306-2619
Subject:
cameras,   etc   ; combustion; diesel engines;     Show all 3 Subjects
Abstract:
... The constant injection mass is a criterion for measuring the thermal efficiency of diesel engines. In this study, the effects of the injection pressure on the ignition and combustion characteristics of an impinging diesel spray are investigated for a constant injection mass. Experiments are performed in a constant volume combustion chamber including a high-pressure common-rail injector with a sing ...
DOI:
10.1016/j.apenergy.2018.06.032

19. Developing Noise-Resistant Three-Dimensional Single Particle Tracking Using Deep Neural Networks

Author:
Zhong, Yaning; Li, Chao; Zhou, Huiyang; Wang, Gufeng
Source:
Analytical chemistry 2018 v.90 no.18 pp. 10748-10757
ISSN:
1520-6882
Subject:
cameras,   etc   ; fluorescence; neural networks;     Show all 3 Subjects
Abstract:
... Three-dimensional single particle tracking (3D SPT) is a powerful tool in various chemical and biological studies. In 3D SPT, z sensitive point spread functions (PSFs) are frequently used to generate different patterns, from which the axial position of the probe can be recovered in addition to its xy coordinates. Conventional linear classifier-based methods, for example, the correlation coefficien ...
DOI:
10.1021/acs.analchem.8b01334

20. Detection of inter-frame forgeries in digital videos

Author:
K., Sitara; Mehtre, B.M.
Source:
Forensic science international 2018 v.289 pp. 186-206
ISSN:
0379-0738
Subject:
cameras,   etc   ; monitoring; tampering;     Show all 3 Subjects
Abstract:
... Videos are acceptable as evidence in the court of law, provided its authenticity and integrity are scientifically validated. Videos recorded by surveillance systems are susceptible to malicious alterations of visual content by perpetrators locally or remotely. Such malicious alterations of video contents (called video forgeries) are categorized into inter-frame and intra-frame forgeries. In this p ...
DOI:
10.1016/j.forsciint.2018.04.056