scholarly journals RECONSTRUCTION OF TECTONIC STRESSES ON THE SCHMIDT PENINSULA (SAKHALIN)

2021 ◽  
pp. 73-88
Author(s):  
А.V. Marinin ◽  
◽  
Yu.L. Rebetskiy ◽  
L.A. Sim ◽  
P.A. Kamenev ◽  
...  
Keyword(s):  
Stress State ◽  
East Coast ◽  
Sakhalin Island ◽  
Stress And Strain ◽  
Horizontal Shear ◽  
The West ◽  
Maximum Compression ◽  
Stable Orientation ◽  
Shear Type ◽  
Geodynamic Condition

The article presents data on the stress state of the Schmidt Peninsula of Sakhalin Island, obtained as a result of field tectonophysical studies in 2020. The importance of studying the northern part of Sakhalin is due to the prospects of this region for the minerals search. The performed studies allowed us to establish differences in the geodynamic condition between the western and eastern coasts of the peninsula. In general, the conditions of horizontal shear (shear type of deformation) prevail among the types of stress state in the studied territory. On the east coast, there are many situations of horizontal extension, which are usually confined to the axial parts of anticlinal structures. The west coast is characterized by the stable orientation of the axis of maximum compression in the NW direction and its subhorizontal position. For the east coast, the direction of the reconstructed orientations of maximum compression is characterized by greater variability. According to the data of the reconstruction, the stress-and-strain state pattern of the Schmidt Peninsula has significant differences from the main territory of Sakhalin Island.

scholarly journals ENSO and Wintertime Extreme Precipitation Events over the Contiguous United States

2008 ◽  
Vol 21 (1) ◽  
pp. 22-39 ◽  
Author(s):  
Siegfried D. Schubert ◽  
Yehui Chang ◽  
Max J. Suarez ◽  
Philip J. Pegion
Keyword(s):  
United States ◽  
West Coast ◽  
Extreme Precipitation ◽  
East Coast ◽  
Daily Precipitation ◽  
Precipitation Variability ◽  
The West ◽  
Extreme Precipitation Events ◽  
The Impact ◽  
Precipitation Events

Abstract In this study the authors examine the impact of El Niño–Southern Oscillation (ENSO) on precipitation events over the continental United States using 49 winters (1949/50–1997/98) of daily precipitation observations and NCEP–NCAR reanalyses. The results are compared with those from an ensemble of nine atmospheric general circulation model (AGCM) simulations forced with observed SST for the same time period. Empirical orthogonal functions (EOFs) of the daily precipitation fields together with compositing techniques are used to identify and characterize the weather systems that dominate the winter precipitation variability. The time series of the principal components (PCs) associated with the leading EOFs are analyzed using generalized extreme value (GEV) distributions to quantify the impact of ENSO on the intensity of extreme precipitation events. The six leading EOFs of the observations are associated with major winter storm systems and account for more than 50% of the daily precipitation variability along the West Coast and over much of the eastern part of the country. Two of the leading EOFs (designated GC for Gulf Coast and EC for East Coast) together represent cyclones that develop in the Gulf of Mexico and occasionally move and/or redevelop along the East Coast producing large amounts of precipitation over much of the southern and eastern United States. Three of the leading EOFs represent storms that hit different sections of the West Coast (designated SW for Southwest coast, WC for the central West Coast, and NW for northwest coast), while another represents storms that affect the Midwest (designated by MW). The winter maxima of several of the leading PCs are significantly impacted by ENSO such that extreme GC, EC, and SW storms that occur on average only once every 20 years (20-yr storms) would occur on average in half that time under sustained El Niño conditions. In contrast, under La Niña conditions, 20-yr GC and EC storms would occur on average about once in 30 years, while there is little impact of La Niña on the intensity of the SW storms. The leading EOFs from the model simulations and their connections to ENSO are for the most part quite realistic. The model, in particular, does very well in simulating the impact of ENSO on the intensity of EC and GC storms. The main model discrepancies are the lack of SW storms and an overall underestimate of the daily precipitation variance.

Novel probabilistic dynamic safety metric formulations for flight path determination

2012 ◽  
Vol 227 (1) ◽  
pp. 185-198
Author(s):  
Nesrin Sarigul-Klijn ◽  
Anthony White
Keyword(s):  
Quantitative Analysis ◽  
Case Studies ◽  
East Coast ◽  
Flight Path ◽  
The Other ◽  
The West ◽  
Landing Sites ◽  
Novel Method ◽  
Safety Metrics

This article details a novel method for the determination of safe flight paths dynamically following an in-flight distress event. The method is based on probabilistic safety metrics which also include the touchdown and evacuation/rescue phases after landing. Two case studies simulating in-flight distress events, one from the west and the other from the east coast are presented using these formulations for a quantitative analysis. It is found that the nearest landing sites are not always the safest ones showing the benefits of the newly developed safety metrics. Finally, the path safety levels are plotted as a function of mission safety probability values using innovative polar plots that provide useful information to pilots.

Random Loads Fatigue: The Use of Spectral Methods Within Multibody Simulation

2005 ◽  
Author(s):  
Claudio Braccesi ◽  
Filippo Cianetti ◽  
Luca Landi
Keyword(s):  
Finite Element ◽  
Stress State ◽  
Dynamic Simulation ◽  
Fatigue Damage ◽  
Spectral Methods ◽  
Mechanical Systems ◽  
Frequency Domain Method ◽  
Stress And Strain ◽  
Damage Evaluation ◽  
Multibody Dynamic

The evaluation of the fatigue damage performed by using the Power Spectral Density function (PSD) of stress and strain state is proving to be extremely accurate for a family of random processes characterized by the property of being stationary. The present work’s original contribution is the definition of a methodology which extracts stress and strain PSD matrices from components modelled using a modal approach (starting from a finite element modelling and analysis) within mechanical systems modelled using multibody dynamic simulation and subject to a generic random load (i.e. multiple-input, with partially correlated inputs). This capability extends the actual stress evaluation scenario (principally characterised by the use of finite element analysis approach) to the multibody dynamic simulation environment, more powerful and useful to simulate complex mechanical systems (i.e. railway, automotive, aircraft and aerospace systems). As regards the fatigue damage evaluation, a synthesis approach to evaluate an equivalent stress state expressed in terms of the PSD function of Preumont’s “equivalent von Mises stress (EVMS)”, starting from the complete stress state representation expressed in terms of PSD stress matrix and easily usable in the consolidated spectral methods, is proposed. This approach allows and has allowed the use of the above methods such as the Dirlik formula as a damage evaluation method. An additional result is the conception and implementation of a frequency domain method for the component’s most probable state of stress, allowing quickly identification of the most stressed and damageble locations. The described methodologies were developed and embedded into commercial simulation codes and verified by using as a test case a simple reference multibody model with a simple flexible component.

scholarly journals The Tsakonian Dialect.—I

1913 ◽  
Vol 19 ◽  
pp. 133-173 ◽  
Author(s):  
C. A. Scutt
Keyword(s):  
East Coast ◽  
Mountain Range ◽  
The South ◽  
The West ◽  
Northern Boundary ◽  
Grazing Land ◽  
Bare Rock ◽  
The North ◽  
Cultivable Land ◽  
The Village

The area over which the Tsakonian dialect is spoken lies on the east coast of the Peloponnese between the Parnon range and the sea. Its northern boundary is roughly the torrent which, rising on Parnon above Kastánitsa, flows into the sea near Ayios Andréas, its southern the torrent which, also rising on Parnon, passes through Lenídhi to the sea. A mountain range stretches along the coast from end to end of the district, reaching its highest point (1114 metres) in Mt. Sevetíla above the village of Korakovúni. Between Tyrós and Pramateftí, the seaward slopes of this range are gentle and well covered with soil. Behind these coast hills there stretches a long highland plain, known as the Palaiókhora, which, in the north, is fairly well covered with soil, but gradually rises towards the south into a region of stony grazing land, and terminates abruptly in the heights above Lenídhi. The high hill of Oríonda rises out of the Palaiókhora to the west and forms a natural centre-point of the whole district. Behind it stretching up to the bare rock of Parnon, is rough hilly country, cut here and there by ravines and offering but rare patches of cultivable land.

‘Old Mobilities’? Transatlantic Women from the West of Ireland 1880s–1920s

2015 ◽  
Vol 23 (2) ◽  
pp. 49-68 ◽  
Author(s):  
Bronwen Walter
Keyword(s):  
East Coast ◽  
First Century ◽  
Social Scientists ◽  
The West ◽  
Chain Migration ◽  
Material Goods ◽  
The Usa ◽  
History Of ◽  
Late Nineteenth ◽  
West Of Ireland

The ‘new mobilities paradigm’ set out by Sheller and Urry (2006) and others urges social scientists to centre many interlocking mobilities in their analyses of contemporary social change, challenging taken-for-granted sedentarism. Drawing on the example of Irish women's chain migration from small farms in the West of Ireland to the East coast of the USA in the late nineteenth and early twentieth centuries, this paper explores a longer history of high levels of mobility. Whilst migration lay at the heart of the movement, it encompassed a much wider range of movements of people, information and material goods. The ‘moorings’ of women in the their workplace-homes on rural farms and in urban domestic service constituted a gendered immobility, but migration also opened up new opportunities for intra-urban moves, circulatory Transatlantic journeys and upward social mobility. The materiality of such ‘old’ mobility provides an early baseline against which to assess the huge scale of rapidly-changing hyper-mobility and instantaneous communication in the twenty-first century.

RESEARCH ON PREMATURE INFANTS—SOME PERSPECTIVES

PEDIATRICS ◽  
1963 ◽  
Vol 32 (3) ◽  
pp. 319-325
Author(s):  
S. Z. LEVINE
Keyword(s):  
Clinical Research ◽  
Premature Infants ◽  
West Coast ◽  
East Coast ◽  
Good Friend ◽  
The West ◽  
Clinical Research Center ◽  
Principle Investigator ◽  
Long Time ◽  
The Many

THERE ARE A number of reasons why I appreciate deeply your invitation to join in these dedication exercises of the Clinical Research Center for Premature Infants. This Center for the care and study of premature infants extends to the West Coast a field of study in which I, on the East Coast, have been interested for many years. Equally gratifying is the circumstance that it will have Dr. Norman Kretchmer, my long-time colleague and good friend, as its Principle Investigator; and Dr. Sumner Yaffe, his distinguished associate, as its first Program Director. Under their direction and with a team of competent workers, with splendid facilities and an adequate budget, we are assured of imaginative exploration and new approaches to the many unknowns still awaiting solution.

Quantitative seismicity maps of India

1972 ◽  
Vol 62 (5) ◽  
pp. 1119-1132 ◽  
Author(s):  
K. L. Kaila ◽  
V. K. Gaur ◽  
Hari Narain
Keyword(s):  
Return Period ◽  
West Coast ◽  
Active Zone ◽  
East Coast ◽  
Indian Subcontinent ◽  
B Value ◽  
Tibet Plateau ◽  
The West ◽  
Period Map ◽  
A Value

Abstract Using the Kaila and Narain (1971) method, three quantitative seismicity maps have been prepared for the Indian subcontinent which are compared with regional tectonics. These are the A-value map, the b-value map and the return-period map for earthquakes with magnitude 6 and above where A and b are the constants in the cumulative regression curve represented by log N = A - bM. The A-value seismicity map shows that India can be divided into two broad seismic zones, the northern seismically highly active zone and the southern moderately active zone. In the northern active zone, a number of seismic highs have been delineated such as the Pamir high, the northwest-southeast trending Srinagar-Almora high, the Shillong massif high, the Arakan Yoma high and the West Pakistan highs. These seismic highs are consistent with the Himalayan tectonic trends. Contrary to this, two seismic highs fall in the Tibet plateau region which align transversely to the main Himalayan trend. In the southern moderately active zone, two seismic highs are clearly discernible, the east and the west coast high, the latter being seismically more active than the former. The least active zone encompasses the Vindhyan syncline and the areas of Delhi and Aravalli folding. Between this zone and the east coast high lies another moderately active zone which encloses the Godavari graben, western part of the Mahanadi graben and the Chattisgarh depression. The b-value seismicity map also demarcates the same active zones as are brought out on the A-value map. The return-period map of India for earthquakes with magnitude 6 and above shows a minimum return period of 100 years in the Pamirs, about 130 years in the various seismic highs in the northern active zone, 180 years on the west coast high, 200 years on the east coast high and about 230 years in the least active Vindhyan-Aravalli zone and the Hyderabad-Kurnool area. These quantitative seismicity maps are also compared with the seismic zoning map of Indian Standards Institution and seismicity maps of India prepared by other workers.

The I-4 Corridor

2019 ◽  
pp. 76-108
Author(s):  
Susan A. MacManus ◽  
David J. Bonanza ◽  
Anthony A. Cilluffo
Keyword(s):  
West Coast ◽  
Political Geography ◽  
East Coast ◽  
The West ◽  
Rural Counties

This chapter examines the critical political geography of Florida—the 130-mile expanse from Tampa on the west coast to Daytona Beach on the east coast known as the I-4 corridor.This mix of urban, suburban, and rural counties usually decides elections in Florida.

scholarly journals A Recent History of 14C, 137Cs, 210Pb, and 241Am Accumulation at Two Irish Peat Bog Sites: an East Versus West Coast Comparison

Radiocarbon ◽  
2001 ◽  
Vol 43 (2B) ◽  
pp. 517-525 ◽  
Author(s):  
D Gallagher ◽  
E J McGee ◽  
P I Mitchell
Keyword(s):  
West Coast ◽  
East Coast ◽  
Similar Sequence ◽  
The West ◽  
Nuclear Weapons Testing ◽  
History Of ◽  
The Difference ◽  
The Uk ◽  
Ombrotrophic Peat ◽  
Coast Site

Data on radiocarbon (14C), 137Cs, 210Pb, and 241Am levels in an ombrotrophic peat sequence from a montane site on the east coast of Ireland are compared with data from a similar sequence at an Atlantic peatland site on the west coast. The 14C profiles from the west and east coasts show a broadly similar pattern. Levels increase from 100 pMC or less in the deepest horizons examined, to peak values at the west and east coast sites of 117 ± 0.6 pMC and 132 ± 0.7 pMC, respectively (corresponding to maximal fallout from nuclear weapons testing around 1964), thereafter diminishing to levels of 110–113 pMC near the surface. Significantly, peak levels at the east coast site are considerably higher than corresponding levels at the west coast site, though both are lower than reported peak values for continental regions. The possibility of significant 14C enrichment at the east coast site due to past discharges from nuclear installations in the UK seems unlikely. The 210Pbex inventory at the east coast site (6500 Bq m−2) is significantly higher than at the west coast (5300 Bq m−2) and is consistent with the difference in rainfall at the two sites. Finally, 137Cs and 241Am inventories at the east coast site also exceed those at the west coast site by similar proportions (east:west ratio of approximately 1:1.2).

Mitochondrial DNA restriction site variation in Tasmanian populations of Orange Roughy (Hoplostethus atlanticus), a deep-water marine teleost

1989 ◽  
Vol 40 (1) ◽  
pp. 1 ◽  
Author(s):  
JR Ovenden ◽  
AJ Smolenski ◽  
RWG White
Keyword(s):  
Mitochondrial Dna ◽  
West Coast ◽  
East Coast ◽  
Restriction Site ◽  
The West ◽  
Orange Roughy ◽  
Site Change ◽  
Restriction Site Variation ◽  
Site Variation ◽  
Hoplostethus Atlanticus

The orange roughy, Hoplostethus atlanticus, forms the basis of an important trawl fishery in Australia and New Zealand which is currently being over-exploited. To gain information about the stock structure of an Australian orange roughy population, ten restriction enzymes were used to survey the restriction- site variation in the mitochondrial genome of 23 individuals collected from the east coast and 26 individuals collected from the west coast of Tasmania. The mean diversity between all 49 genomes was a low 0.19%. Of the eleven haplotypes identified, only one was present in both the east and west coast samples. Four haplotypes were found only in the east coast sample and six were found only in the west coast sample. Eight haplotypes were related to the haplotype found on both coasts by the gain or loss of one restriction site. One haplotype collected in the east coast sample was related to one other east coast haplotype by one site change. One haplotype collected from the west coast was related to a west coast haplotype by one site change. If this pattern is confirmed by further mitochondrial DNA studies, it could be inferred that gene flow between the orange roughy populations on the east and west coasts of Tasmania is low.

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