Search for PARI Report/Technical Note
Development on Aquatic Walking Robot for Underwater Inspection
Port and Airport Research Institute 026-05-11
December, 1987
Mineo IWASAKI,Jun-ichi AKIZONO,Hidetoshi TAKAHASHI,Toshihumi UMETANI,Takashi NEMOTO,Osamu ASAKURA,Kazumasa ASAYAMA
An experimental model and a prototype model were made for the developement of underwater inspection robot. The experimental model...
Network Simulation -Macroscopic Simulation Model of Marine Traffic-
Port and Airport Research Institute 026-05-10
December, 1987
Systems Laboratory
Yasuhide OKUYAMA
In Japan, various kinds of methods for marine traffic simulation have been developed. Of these, network simulation is widely used...
Motions of Moored Ships and Their Effect on Wharf Operation Efficiency
Port and Airport Research Institute 026-05-09
December, 1987
Offshore Structures Laboratory
Shigeru UEDA
This paper discusses the harbour calmness index and factors concerned with the calculation of the harbour calmness index. Motions...
Study on Rational Earthquake Resistant Design Based on the Quantitative Assessment of Potential Seismic Damage to Gravity Quaywalls
Port and Airport Research Institute 026-05-08
December, 1987
Earthquake Disaster Prevention Laboratory
Tatsuo UWABE
Procedures of quantitative estimation of the earthquake damage to the gravity quaywall was studied for the earthquake preparednes...
Development of New Evaluation Methods and New Design Methods of Rehabilitation Works for Airport Pavements
Port and Airport Research Institute 026-05-07
December, 1987
Runways Laboratory
Katsuhisa SATO,Yoshitaka HACHIYA
When airport pavements are damaged by traffic and environmental effects so that their serviceability or load carrying capacity is...
Bearing Capacity of a Rubble Mound Supporting a Gravity Structure
Port and Airport Research Institute 026-05-06
December, 1987
Masaki KOBAYASHI,Masaaki TERASHI,Kunio TAKAHASHI
Extensive research was carried out to clarify the bearing capacity of rubble mounds. This consisted of shear tests for rubbles by...
Modeling for the Prediction of the Effects of Sea Bed Sediment Treatment on the Improvements of Ecological Conditions and Seawater Quality
Port and Airport Research Institute 026-05-05
December, 1987
Takeshi HORIE
This paper deals with the development of a numerical model for predicting the effect of purification countermeasures in polluted ...
Interactions between Surface Waves and a Multi-Layered Mud Bed
Port and Airport Research Institute 026-05-04
December, 1987
Hydrodynamics Laboratory
Hiroichi TSURUYA,Susumu NAKANO,Jun TAKAHAMA
A multi-layered viscous fluid model is presented to investigate the wave field and mass transport velocity of mud layers under th...
Fundamental Characteristics of Oblique Regular Waves and Directional Random Waves Generated by a Serpent-type Wave Generator
Port and Airport Research Institute 026-05-03
December, 1987
Wave Laboratory
Tomotsuka TAKAYAMA,Tetsuya HIRAISHI
The present paper has discussed the properties of the oblique waves and directional random waves generated by a segmented wave ge...
Estimation of Directional Spectrum using the Bayesian Approach，and its Application to Field Data Analysis
Port and Airport Research Institute 026-05-02
December, 1987
Noriaki HASHIMOTO,Koji KOBUNE,Yutaka KAMEYAMA
In this report, several methods for estimating direcinstability of the estimate caused by the errors contained in the cross-power...
Structures and Hydraulic Characteristics of Breakwaters -The State of the Art of Breakwater Design in Japan-
Port and Airport Research Institute 026-05-01
December, 1987
Breakwaters Laboratory
Katsutoshi TANIMOTO,Shigeo TAKAHASHI,Katsutoshi KIMURA
The major structure type of breakwaters in Japan is a mixed type which consists of a rubble mound foundation and an upright secti...
Wave-inducted Liquefaction and Densification in Seabed
Port and Airport Research Institute 026-04-04
December, 1987
Kouki ZEN,Hiroyuki YAMAZAKI,Atsushi WATANABE
The mechanism of wave-induced liquefaction and densification of a permeable seabed is theoretically and experimentally investigat...
Nutrient Cycle Model and Its Application to the Prediction of Seawater and Sediment Improvement
Port and Airport Research Institute 026-04-03
December, 1987
Takeshi HORIE
For the protection against the eutrophication in polluted inner bays, seawater and sediment improvement effects are investigated ...
Development of Wind Waves Generated on Adverse Current
Port and Airport Research Institute 026-04-02
December, 1987
Hydrodynamics Laboratory
Hiroichi TSURUYA,Susumu NAKANO,Shin-ichi YANAGISHIMA,Yoshikuni MATSUNOBU
The effects of water current on the development of wind waves are investigated experimentally. When the direction of current is o...
Estimation of Directional Spectra from a Bayesian Approach in Incident and Reflected Wave Field
Port and Airport Research Institute 026-04-01
December, 1987
Noriaki HASHIMOTO,Koji KOBUNE
In this paper, two different methods for estimating directional spectrum in incident and reflected wave field are proposed. These...
Experimental Charcteristics of Random Waves Generated by the Serpent Type Wave Generator -The short-crested wave generator in the Offshore Structure Experimental Basin-
Port and Airport Research Institute 026-03-02
September, 1987
Wave Laboratory
Tomotsuka,TAKAYAMA,Tetsuya HIRAISHI
The real sea waves are quite random in height, period and propapgation direction. Therefore, they are called directional random w...
Electric Power Generartion by a Large-scale Model of Pneumatic-type Wave Power Converter -A Study on Development of Wave Power,6th Report-
Port and Airport Research Institute 026-03-01
September, 1987
Wave Power Laboratory
Shigeo TAKAHASHI,Takashi ADACHI,Satoru TANAKA
Wave power is converted into electric power by a 1/3 model of pneumatic-type wave power converter. The converter includes a wave-...
Mathematical Modeling on the Fate of Suspended Particles Caused by Marine Works and Application of the Models to Environmental Monitoring
Port and Airport Research Institute 026-02-08
June, 1987
Takeshi HORIE
The dispersion of suspended particles caused by marine works should be controled within a minor influence for the environmental p...
Field Observation on Dynamics of Suspended Particles in Coastal Sea by Microcosm and Sediment Trap Experiments
Port and Airport Research Institute 026-02-09
June, 1987
Storm Surge and Tunami Laboratory
Yasushi HOSOKAWA,Eiichi MIYOSHI,Yoshiyuki SEKINE,Takeshi HORIE
The Microcosm enclosure devices (l=5m, φ=1m, V=4m3) were set in the coastal area at the mouth of the Tokyo Bay. The sea water was...
Analysis of Water Quality Data obtained by Automatic Measurement System and Its Application to Red-Tide Prediction
Port and Airport Research Institute 026-02-07
June, 1987
Marine Diffusion Laboratory
Kazuo MURAKAMI
This paper describes the characteristics of water quality at a red-tide in coastal region using the multivariate analysis. The da...