Beach Profile Variation on Hawaiian Carbonate Beaches

In the paper the possibility of using Dean’s equilibrium beach profile formula for a large man-made lake coastal conditions was studied. A stringent test of its adequate use was made based on mathematical statistics. The calculations were performed for the real bottom profile of the Novosibirsk reservoir beach.

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CROSSTEX - Wave Breaking, Boundary Layer Processes, the Resulting Sediment Transport and Beach Profile Evolution

10.21236/ada508367 ◽

2009 ◽

Author(s):

John Trowbridge ◽

Tian-Jian Hsu

Keyword(s):

Boundary Layer ◽

Sediment Transport ◽

Wave Breaking ◽

Beach Profile ◽

Boundary Layer Processes

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UNDERWATER BARRED BEACH PROFILE TRANSFORMATION UNDER DIFFERENT WAVES CONDITIONS

Proceedings of International Conference "Managinag risks to coastal regions and communities in a changinag world" (EMECS'11 - SeaCoasts XXVI) ◽

10.21610/conferencearticle_58b4315f60698 ◽

2017 ◽

Author(s):

Olga Kuznetsova ◽

Yana Saprykina ◽

Boris Divinsky ◽

...

Keyword(s):

Numerical Modelling ◽

Coastal Zone ◽

Wave Height ◽

Wave Energy ◽

Wave Period ◽

Beach Profile ◽

Infragravity Waves ◽

Wave Parameters ◽

Mean Wave Period

Based on numerical modelling evolution of beach under waves with height 1,0-1,5 m and period 7,5 and 10,6 sec as well as spectral wave parameters varying cross-shore analysed. The beach reformation of coastal zone relief is spatially uneven. It is established that upper part of underwater beach profile become terraced and width of the terrace is in direct pro-portion to wave height and period on the seaward boundary but inversely to angle of wave energy spreading. In addition it was ascertain that the greatest transfiguration of profile was accompanied by existence of bound infragravity waves, smaller part of its energy and shorter mean wave period as well as more significant roller energy.

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Effect of thread profile variation on pullout and bending strength of a pedicle screw

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1078/1/012025 ◽

2021 ◽

Vol 1078 (1) ◽

pp. 012025

Author(s):

Rosdi Daud ◽

W Y Kae ◽

H Mas Ayu ◽

A Shah

Keyword(s):

Pedicle Screw ◽

Bending Strength ◽

Profile Variation ◽

Thread Profile

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Aromatic Profile Variation of Essential Oil from Dried Makwhaen Fruit and Related Species

Plants ◽

10.3390/plants10040803 ◽

2021 ◽

Vol 10 (4) ◽

pp. 803

Author(s):

Trid Sriwichai ◽

Jiratchaya Wisetkomolmat ◽

Tonapha Pusadee ◽

Korawan Sringarm ◽

Kiattisak Duangmal ◽

...

Keyword(s):

Cluster Analysis ◽

Essential Oil ◽

Related Species ◽

Phenotypic Characteristic ◽

Genetic Sequencing ◽

Dried Fruits ◽

Profile Variation ◽

Chemical Profiles ◽

The Relationship ◽

Different Sources

The aim of this research is to evaluate the relationship between genotype, phenotype, and chemical profiles of essential oil obtained from available Zanthoxylum spp. Three specimens of makhwaen (MK) distributed in Northern Thailand were genetically and morphologically compared with other Zanthoxylum spices, known locally as huajiao (HJ) and makwoung (MKO), respectively. HJ was taxonomically confirmed as Z. armatum while MKO and MK were identified as Z. rhetsa and Z. myriacanthum. Genetic sequencing distributed these species into three groups accordingly to their confirmed species. Essential oil of the dried fruits from these samples was extracted and analyzed for their chemical and physical properties. Cluster analysis of their volatile compositions separated MKO and MK apart from HJ with L-limonene, terpinen-4-ol, β-phellandrene, and β-philandrene. By using odor attributes, the essential oil of MKO and MK were closely related possessing fruity, woody, and citrus aromas, while the HJ was distinctive. Overall, the phenotypic characteristic can be used to elucidate the species among makhwaen fruits of different sources. The volatile profiling was nonetheless dependent on the genotypes but makwoung and makhwaen showed similar profiles.

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Long-Term Observations of Beach Variability at Hasaki, Japan

Journal of Marine Science and Engineering ◽

10.3390/jmse8110871 ◽

2020 ◽

Vol 8 (11) ◽

pp. 871

Author(s):

Masayuki Banno ◽

Satoshi Nakamura ◽

Taichi Kosako ◽

Yasuyuki Nakagawa ◽

Shin-ichi Yanagishima ◽

...

Keyword(s):

Morphological Change ◽

High Frequency ◽

Climate Changes ◽

Wave Climate ◽

Time Interval ◽

Observation Data ◽

Beach Profile ◽

Water Level Variations ◽

Monthly Variations

Long-term beach observation data for several decades are essential to validate beach morphodynamic models that are used to predict coastal responses to sea-level rise and wave climate changes. At the Hasaki coast, Japan, the beach profile has been measured for 34 years at a daily to weekly time interval. This beach morphological dataset is one of the longest and most high-frequency measurements of the beach morphological change worldwide. The profile data, with more than 6800 records, reflect short- to long-term beach morphological change, showing coastal dune development, foreshore morphological change and longshore bar movement. We investigated the temporal beach variability from the decadal and monthly variations in elevation. Extremely high waves and tidal anomalies from an extratropical cyclone caused a significant change in the long-term bar behavior and foreshore slope. The berm and bar variability were also affected by seasonal wave and water level variations. The variabilities identified here from the long-term observations contribute to our understanding of various coastal phenomena.

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