Spalling of concrete fragments due to the deterioration structures can cause property damage or serious and even fatal accidents; thus, there is a need detect such deterioration. Generally, hammering test employed as main inspection method prevent spalling; however, it requires close contact with structure being tested. Getting for expensive time consuming, if high up, risk falling. Therefore, in this study, we developed system inspecting without approaching them, using infrared...

CaO-based slag used in hot metal pretreatment and converters steelmaking processes typically contains dispersed gas phases. This is called foaming slag, which known to degrade the quality of slag. The rheological behavior this dependent on part phase. generated by chemical reaction between In study, simulated was prepared reacting sodium hydrogen carbonate oxalic acid glycerol, disperses carbon dioxide. Next, we systematically investigated effects volume fraction phase proportion glycerol...

The rates of collision and stranding at sea are very high. primary causes are: not checking a ship's position, inadequate route planning, operational misjudgement inefficient watchkeeping. These responsible for 90 percent strandings according to accident statistics. Reduction in risk would be considerable economic benefit also reduce pollution welcomed by shipping companies and, course, crews.

The recent increase of "big data" in our society has led to major impacts machine learning and data mining technologies various fields ranging from marketing science. On the other hand, there still exist areas where only small-sized are available for reasons, example, high acquisition costs or rarity targets events. Machine tasks using such small usually difficult because lack information training accurate prediction models. In particular, long-term time-series prediction, size tends be...

In this paper, millimeter-wave radar cross section (RCS) characteristics for high-voltage power transmission line is investigated the purpose of helicopter collision avoidance, where RCS measurements were conducted. The dependence on a incidence angle also discussed at 35 and 94 GHz. It found that high can be expected mainlobe sidelobes coincides with Bragg scattering.

Epitaxial Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) thin films were fabricated on (La,Sr)CoO3/CeO2/ YSZ coated Si substrates by double-pulse excitation PLD with and without a mask. For mask in conditions of Nd:YAG laser irradiation before defocused KrF-excimer-laser irradiation, the surface roughness PMN-PT was rather less than that using single PLD. Thin smoother surfaces deposited at high deposition rate 5.6 nm·min-1 method after KrF excimer 0.5 =s delays.

A complete grasp of the actual vessel traffic flow by accurate observation is essential to carry out management, design route, planning port construction, etc.. Up now, has needed many efforts such as use a special ship or car equipped with radar system and preparation staff for considerably long period. In order perform without efforts, authors have been developing completely automated network covering whole Tokyo Bay. This consists monitoring station (base station) installed at Maritime...

In the ocean around world, depth series data of temperature and salinity have being measured. However, it is difficult to discriminate errors from normal since variation areas are different. this research, using hierarchical clustering, we partitioned into some so that same in each area. Then, transforming sets sliding windows consideration series, applied anomaly detection methodologies. Finally, succeeded assigning high scores on seemed be normal.

Abstract Mineral components in tap water generally contaminate sanitary ware. In this study, various cations (Mg, Ca, and Al) were added to an aqueous solution containing silica prevent stains on The particle size the was measured observed increase for all cations. To create artificial stains, a dropped onto glass allowed dry. When these removed by sliding, removal rate higher that contained This trend attributed formation of precipitates owing reaction with solution. possibly increased...

We present a coherent radar signal detection scheme in non-Gaussian distributed clutter and its simulation results. In this the is modeled by compound Gaussian distribution unknown parameters, i.e. target amplitude clutter, are estimated based on posteriori with noninformative prior. Also technique called Bayesian predictive densities employed. order to investigate performance, we carried out Monte Carlo results also compared conventional schemes such as maximum likelihood estimator. The...

The present paper shows a basic research for Inertial Navigation equipment using MEMS (Micro Electro Mechanical Systems) sensors. Usually, GPS is used setting ship's position. Gyro compass and magnet are deciding heading. According to the recent technological innovation, an inertial navigation system has potential be next ships. One of most exciting technical advancement devices overcome many features that have impended adoption systems by applications, especially where cost, size power...

To decrease collision disaster, authors examined early detecting of small boats with the enhancement an Electrical Visualization. Most are made by FRP, but there is few observation on its radar cross section. The measured Radar Cross Section (RCS) boats. As results, RCS less than 5 G/T was 6m^2 and bigger 15m^2. not so small, however in actually, it difficult to detect these radar. thought that even if reflector installed for them, because big suitable them. So make a proposal transponder...

Abstract The drying behavior of silicic acid‐containing water droplets on a glass substrate was investigated by using as‐prepared aqueous silica solutions varying concentrations to simulate scale‐like formation. solution were found form circumferential solid deposits (water scale). Additionally, the observed under temperature and humidity. Optical microscopy images deposited material showed thicker in inner part circumference, indicating so‐called rush‐hour effect induced coffee‐ring effect....

Development of Cloud Computing System for Concrete Structure Inspection by Deep Learning Based Infrared Thermography Method Shogo Hayashi, Koichi Kawanishi, Isao Ujike and Pang-Jo Chun Pages 927-934 (2020 Proceedings the 37th ISARC, Kitakyushu, Japan, ISBN 978-952-94-3634-7, ISSN 2413-5844) Abstract: In recent years, deterioration concrete structures such as floating delamination has occurred. These damages can lead to falling pieces. It may cause damage third parties vehicles or pedestrians...

When we are encountering many vessels at sea, it is very useful that the information on these vessels, for example, course, speed, size of vessel, destination and intention maneuvering, can be obtained instantly. Some provided by a navigational aids like an ARPA. But takes least half minute to observe vessel calculate vessel's course also old value least. The authors made attempt estimate gross tonnage, shape aspect angle simple image processing radar echoes. An ultra high speed analogue...

This paper presents high-voltage power transmission line detection with millimeter-wave (MMW) radar for the purpose of helicopter collision avoidance. In order to improve detection, an azimuth angular profile matching (APM) scheme based on Bragg scattering phenomenon is suggested. For evaluation we carried out a Monte Carlo simulation both at 94 GHz and 35 GHz, where white Gaussian noise considered as additive noise. The results show that probability APM much higher than performance improved...

When we are encountering many vessels at sea, it is very useful that the information on these vessels, for example, course, speed, size of vessel, destination and intention maneuvering, can be obtained instantly. Some provided by an Automatic Radar Plotting Aids. But takes least a half minute to observe vessel calculate vessel's course also old value least. The author made attempt estimate gross tonnage, shape aspect angle simple image processing radar echoes corresponded single scanning. An...

Dragging anchor of a ship causes often big sea casualty such as grounding, oil spilling, and collision with other ships break water. So, it is important to survey attitude foretell dragging in rough weather. We studied the possibility detection using techniques radar image processing. The video signal was converted 8 bits digital at 40nsec sampling rate memorized 1mega byte memory personal computer order measure 2-dimensional distribution echor. Using these data, we examined position,...