نتایج جستجو برای: type platforms

تعداد نتایج: 1392703  

ژورنال: مهندسی دریا 2017

This paper presents a special underwater robot for subsea pipelines inspection which is used to transport extracted oil and gas from oil platforms to onshore facilities. Due to the high pressure in the deep sea and the long pipelines, it is impossible to inspection by divers. Therefore underwater robot can be used to solve this problem. This paper investigate a hovering type of underwater vehic...

ژورنال: مهندسی دریا 2007
افضلی, سید مهدی, عسگریان, بهروز,

In this paper, using two different methods, probability of failure is calculated for three offshore platforms in Persian Gulf. In first method, uncertainties are applied as a magnification factor in calculation of failure probability, whereas in the second method these uncertainties are considered directly for uncertainty parameters. The parameters of wave height hazard curve for eight directio...

Journal: :مهندسی بیوسیستم ایران 0
امین نصیری دانشجوی دکتری مهندسی مکانیک ماشین های کشاورزی، دانشکده مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران حسین مبلی عضو هیات علمی سلیمان حسین پور استادیار گروه مهندسی ماشین های کشاورزی، دانشکده مهندسی و فناوری، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران شاهین رفیعی استاد گروه مهندسی ماشین های کشاورزی، دانشکده مهندسی و فناوری، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران.

in this research for detection and separation cultivation platforms and flowerpots from each other, localization the corner of platforms and position of the flowerpots to form of two-dimensional point and creation two-dimensional map of greenhouse, used three-dimensional coordinates of environment components. results obtained from this research, showed that the proposed algorithm can detect 100...

2017
Ho Bin Seo Man Bock Gu

Sandwich-type biosensor platforms have drawn lots of attentions due to its superior features, compared to other platforms, in terms of its stable and reproducible responses and easy enhancement in the detection sensitivity. The sandwich-type assays can be developed by utilizing a pair of receptors, which bind to the different sites of the same target. In this mini-review paper, the sandwich-typ...

ژورنال: مهندسی دریا 2012

Beam-to-column connections have been found to be of great significance in influencing structural behavior at ambient and elevated temperatures. Observations from full-scale fire tests and damaged structures confirm that connections have a considerable effect on the stability time of structural components in fire. Due to the high cost of elevated temperature tests, adequate experimental data abo...

Journal: :journal of medical signals and sensors 0
hamidreza saberkari habib badri ghavifekr mousa shamsi

in recent years, demand for biological sensors which are capable of fast and accurate detection of minor amounts of pathogens inreal‑time form has been intensified. acoustic wave (aw) devices whose performance is determined by mass sensitivity parametersand quality factor are used in biological sensors as platforms with high quality. yet, current aw devices are facing many challengessuch as the...

Floating platforms at the hydropower plant reservoirs are attractive sites for aquaculture, fishing and other recreational activities. However, the unregulated construction of these platforms may negatively affect the fauna, flora and water quality of reservoirs. Thus, this study aimed to evaluate the impact of floating platforms on the limnological aspects of Nova Ponte hydropower plant reserv...

ژورنال: مهندسی دریا 2016

In the present paper, the effectiveness of Tuned Liquid Damper (TLD) in controlling the dynamic responses of offshore jacket platforms under earthquake excitation is investigated. This type of dampers consisting of one or more fluid (generally water) containers can be installed on the platform’s deck. Hydrodynamic actions induced by the tilting of the water surface in the container act as...

Journal: :IEEE Access 2021

The ability to recognize and identify terrain characteristics is an essential function required for many autonomous ground robots such as social robots, assistive vehicles, exploration robots. Recognizing identifying challenging because similar terrains may have very different appearances (e.g., carpet comes in colors), while with appearance physical properties mulch versus dirt). In order addr...

2012
Georg Nawratil

In Section 1, we give a review on Stewart Gough (SG) platforms with self-motions and the related Borel Bricard problem. Moreover, in Section 2, we report about recent results achieved by the author on this topic (SG platforms with type II DM self-motions). In context of these results, we also present two new theorems in Section 3, which open the way for addressed future work. In Section 4, we g...

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