scholarly journals INFRAGRAVITY PERIOD OSCILLATIONS IN A CHANNEL HARBOR NEAR A RIVER MOUTH

2018 ◽  
pp. 8 ◽  
Author(s):  
Florian Bellafont ◽  
Denis Morichon ◽  
Volker Roeber ◽  
Gaël André ◽  
Stéphane Abadie
Keyword(s):  
Return Period ◽  
Pressure Sensors ◽  
River Mouth ◽  
Type Model ◽  
Storm Event ◽  
Mooring Lines ◽  
Long Period ◽  
One Year ◽  
Free Propagation ◽  
Resonance Oscillations

Port of Bayonne, located in SW France, is a channel harbor situated near the river mouth of the Adour. Long-period oscillations have repeatedly caused snapping of mooring lines of berthed ships and have led to wave resonances in an adjacent marina (seiche). To investigate mechanisms for generation of theses oscillations, a field campaign was carried out during a one-year return-period storm (Hs = 6 m and Tp = 15 s): four pressure sensors were deployed inside the port. To complement the data and to better understand the governing processes that lead to the wave transformations in Port of Bayonne, the storm event was computed with the Boussinesq-type model, BOSZ. The data confirm the model results, which show generation of long infragravity (IG) waves by the incident swell around the harbor entrance and free propagation of these waves without amplification over far distances inside Port of Bayonne. Excited by these long waves, resonance oscillations are only noticeable in a small enclosed marina. Though the IG-waves are not causing substantial changes to the water level along the harbor channel, they are suspected to excite the ships’ eigen modes, which consequently results in mooring problems.

scholarly journals CAREGIVERS’ NEEDS IN CARING FOR RELATIVES WITH SCHIZOPHRENIA IN MEDAN INDONESIA: A PHENOMENOLOGICAL STUDY

2017 ◽  
Vol 3 (6) ◽  
pp. 656-661 ◽  
Author(s):  
Jenny Marlindawani Purba
Keyword(s):  
Home Care ◽  
Unmet Needs ◽  
Phenomenological Study ◽  
Family Members ◽  
Optimal Care ◽  
Knowledge And Skills ◽  
Long Period ◽  
Primary Nurse ◽  
Caregiver Needs ◽  
One Year

Background: A caregiver is a primary nurse and has a major role in providing care for people with schizophrenia. Caring for those with schizophrenia for a long period of time is a challenge for families, especially caregivers. Various needs ought to be studied by nurses to assist caregivers in providing optimal care for family members who experience schizophrenia.Objective: This qualitative study aims to explore the needs of caregivers in treating schizophrenia at home.Methods: The method used in this study is the method of purposive sampling with the number of participants as many as 10 people with criteria: 1) have family members diagnosed with schizophrenia, 2) directly involved in home care patients, 3) caring for schizophrenia for more than one year, 4) willing to be a participant by signing informed consent, 4) being able to identify what is needed in treating schizophrenia. Colaizzi is used to analyze interview data.Results: The results of the study found four themes of caregiver needs in caring for schizophrenia patients at home, ly: 1) seeking information about schizophrenia, 2) sought schizophrenic relatives’ recovery, 3) looking for appropriate rehabilitation for relatives with schizophrenias, and 4) utilizing mental health facilities.Conclusions: It is expected that nurses have the knowledge and skills in identifying and helping families, especially caregivers, to meet unmet needs so they can optimize home care.

scholarly journals El restabliment de la Companyia de Jesús a València

2018 ◽  
Vol 11 (11) ◽  
pp. 74
Author(s):  
Francesc Joan Monjo i Dalmau
Keyword(s):  
Society Of Jesus ◽  
Long Period ◽  
The World ◽  
One Year ◽  
Jesuit Order

Resum: L’expulsió de la Companyia de Jesús, decretada per Carles III el 1767, obrí un llarg període de foscor per als jesuïtes hispànics. Tanmateix, el cop de gràcia a l’orde vindria de la mà del papa Climent XIV, que, pressionat per la monarquia espanyola –l’ambaixador del rei hispànic a Roma Moñino recorregué a la coacció i al suborn d’afins al pontífex–, declarà extingida la Companyia el 21 de juliol del 1773. Els jesuïtes suprimits van conrear la propaganda durant més de quaranta anys per tal de revertir la situació. Finalment, el 1814 el papa Pius VII restablí l’orde jesuïta a tot el món mitjançant la butlla Sollicitudo omnium ecclesiarum, i els regulars ignasians van obtenir, un any després, el desitjat permís de Ferran VII per tornar als territoris hispànics. El 18 de juliol del 1816 els jesuïtes prenien possessió de la Casa Professa, ara convertida en col·legi.   Paraules clau: Jesuïtes, restauració, Pius VII, Ferran VII, València   Abstract: The expulsion of the Society of Jesus, decreed by Charles III of Spain in 1767, initiated a long period of darkness for the Hispanic Jesuits. Although the coup de grace to the order would come by the hands of Pope Clement XIV, who was pressured by the Spanish monarchy (the ambassador of the Hispanic king in Rome Moñino resorted to the coercion and subornation of those who were related to the pontiff), declared the Society extinguished on July 21, 1773. The suppressed Jesuits produced propaganda for more than forty years to reverse the situation. Finally, in 1814 Pope Pius VII restored the Jesuit Order around the world through the Bull Sollicitudo omnium ecclesiarum, and one year later the regular Ignatians obtained the desired permission from Ferdinand VII to return to the Hispanic territories. On July 18, 1816, the Jesuits took possession of Casa Professa, now converted into a school.   Keywords: Jesuits, restoration, Pius VII, Ferdinand VII, València.

Estimation of annual pollutant loadings in two small catchments and examination of their differences caused by regional properties

2006 ◽  
Vol 53 (2) ◽  
pp. 33-44 ◽  
Author(s):  
S. Fujii ◽  
M. Moriya ◽  
P. Songprasert ◽  
H. Ihara
Keyword(s):  
River Basin ◽  
High Frequency ◽  
Storm Event ◽  
Precipitation Pattern ◽  
Storm Events ◽  
Rainfall Events ◽  
Survey Results ◽  
One Year ◽  
Small Catchments

A series of runoff surveys was conducted for more than one year in two small catchments of the Kamo River basin (75.4 km2) and the Takano River basin (66.8 km2) in Kyoto, Japan, which adjoin each other, and may have the same precipitation pattern. The investigation consisted of a high-frequency periodic survey, a long-term regular survey and a storm event survey. The survey results were compared with the regional properties of the basins, and the following results were obtained. (1) Pollutant loadings were successfully estimated as two portions of base discharge and storm events discharge from the survey results. (2) Estimated annual loading of the sites was 2.9–4.5, 1.3–1.8, 17–27, 1.3–2.2, 0.076–0.97 t/km2/y, respectively for CODMn, DOC, SS, TN and TP. (3) 52–53% of the whole flow, which was caused by rainfall events, conveyed 81–87, 68–73, 92–95, 64–67, 76–81% of the whole loading, respectively for CODMn, DOC, SS, TN and TP. (4) Differences of regional properties in two basins cause different runoff patterns, but the differences in runoff patterns also depend on the rainfall patterns. In general, a more urbanized basin receives early and strong influence of precipitation on the storm event runoff.

Synergistic Use of Satellite and In-Situ Current Data to Improve the Characterisation of Seasonal Trends

2009 ◽  
Author(s):  
Liam Harrington-Missin ◽  
Mark Calverley ◽  
Gus Jeans
Keyword(s):  
Current Data ◽  
Seasonal Trend ◽  
Measured Signal ◽  
Geostrophic Current ◽  
Geostrophic Currents ◽  
Current Regime ◽  
Long Period ◽  
In Situ Data ◽  
One Year

The synergistic use of measured in-situ current data and altimetry derived geostrophic current data provides improved seasonal characterisation of the current regime, West of Shetland. In September 2007, considerable downtime was experienced by an offshore operator, West of Shetland, as a result of unexpectedly high currents persisting for a number of days. This downtime was unanticipated following conclusions derived from one year of in-situ measured data, which suggested a most favourable current regime during the months August to October. Ten years of altimetry derived geostrophic currents were utilised in conjunction with approximately 3 years of in-situ data to assess the validity of the reported seasonal trend. The altimetry derived geostrophic currents correlated well with the dominating long period signal extracted from the in-situ data. Seasonal comparison between the altimetry derived geostrophic currents and the total measured signal showed the previously available measurement year had a relatively benign September. Based on the 10 years of satellite data, the inter-annual variability of the current regime West of Shetland does not show any clear seasonal trend.

The Application of SWMM in the Analysis of a Campus Drainage System

2015 ◽  
Vol 744-746 ◽  
pp. 1146-1150
Author(s):  
Zheng Rong Fu ◽  
Jia Xin Zhuang ◽  
Liang Zhu Wang
Keyword(s):  
Water Management ◽  
Return Period ◽  
Drainage System ◽  
Storm Water ◽  
Management Model ◽  
University Campus ◽  
Storm Water Management Model ◽  
Design Storm ◽  
Road Base ◽  
One Year

The drainage system of a part of a university campus was tapped using SWMM (Storm Water Management Model). Local drainage discharge capacity was studied under different design storm return period. Results show that flooding and overload at some junctions and in some conduits are doubled with the increase of design rain return period from one year to five year, which may deteriorate the traffic and road base.

scholarly journals A Bayesian Hierarchical Model for the Spatial Analysis of Carbon Monoxide Pollution Extremes in Mexico City

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
José del Carmen Jiménez-Hernández ◽  
Marisol López-Cerino ◽  
Alejandro Ivan Aguirre-Salado
Keyword(s):  
Air Pollution ◽  
Carbon Monoxide ◽  
Mexico City ◽  
Metropolitan Area ◽  
Return Period ◽  
Extreme Values ◽  
Spatial Behavior ◽  
Gev Distribution ◽  
Bayesian Hierarchical ◽  
One Year

Air pollution by carbon monoxide is a serious problem that affects many cities around the world, and the theory of extreme values has played a crucial role in the study of this issue. In this paper, we proposed a Bayesian hierarchical spatial model of extreme values to evaluate the risk of extreme events of air pollution due to carbon monoxide in the metropolitan area of Mexico City. Spatial trends are modeled through of a Gaussian process for the generalized extreme value (GEV) distribution parameters, and prediction maps are produced for each of these. The results show a marginal spatial behavior for the location, scale, and shape parameters of GEV distribution, which indicate the existence of local variations that would not be possible to model using only stationary models. A return map of the maximum concentrations with a return period of one year is obtained. We found that the return levels for a one-year return period of CO concentration above 8 ppm in the Metropolitan Area of the Valley of Mexico are concentrated in the central part of this region, and the areas with the lowest estimates are distributed in the periphery. In addition, a quantile-quantile (QQ) plot between the theoretical and empirical quantiles was provided, which showed a very good fit of data to the proposed model.

scholarly journals Spatial Distribution of Δ14C Values of Organic Matter in Surface Sediments Off Saru River in Northern Japan, One Year After a Flood Event in 2006

Radiocarbon ◽  
2010 ◽  
Vol 52 (3) ◽  
pp. 1068-1077
Author(s):  
Seiya Nagao ◽  
Tomohisa Irino ◽  
Takafumi Aramaki ◽  
Ken Ikehara ◽  
Hajime Katayama ◽  
...  
Keyword(s):  
Organic Matter ◽  
River Mouth ◽  
Flood Event ◽  
Terrestrial Organic Matter ◽  
Sampling Area ◽  
Restricted Area ◽  
One Year ◽  
Sandy Sediments ◽  
Riverine Suspended Solids ◽  
Northern Japan

Dispersion and deposition of terrestrial organic matter by flooding on the inner shelf were studied using C/N ratios, δ13C, and Δ14C values of sedimentary organic matter. Surface sediment samples (top 2 cm) were collected from coastal areas near the Saru River in southwestern Hokkaido, northern Japan, 1 yr after a flood event in 2006. Riverine suspended solids were also collected at a fixed station downstream during 2006–2008. Sandy sediments were located at the front of the river mouth and the western part of the sampling area, with the δ13C of organic matter ranging from −23.8‰ to −22.0‰, Δ14C of –655‰ to –388‰, and an organic carbon/total nitrogen (C/N) ratio of 5.9–7.7. On the other hand, silt and clay sediments were distributed in a restricted area 11–16 km from the river mouth, with lighter δ13C (–26.7‰ to −24.1‰) and higher Δ14C (–240‰ to –77‰) of organic matter and C/N ratio (7.8–13.3). From end-member analysis, the apparently younger and less degraded organic matter in the silt and clay sediments consists mainly of terrestrial organic matter released by flood events. They remain in the depression, although most flood deposits were moved to deep-sea environments.

Wave Spectrum Analysis of Kerry Deepwater Port Sea in Cameroon

2014 ◽  
Vol 638-640 ◽  
pp. 1280-1284
Author(s):  
Hui Xiao ◽  
Yi Feng Zhang ◽  
Hong Bo Zhao
Keyword(s):  
Fourier Transform ◽  
Spectrum Analysis ◽  
Wave Spectrum ◽  
Transform Method ◽  
Long Period ◽  
Fast Fourier Transform Method ◽  
Spectrum Characteristics ◽  
One Year ◽  
Sea Area ◽  
Period Wave

According to the measured wave data for one year in Kerry deepwater port sea area, Cameroon, the wave spectrum characteristics calculate using fast Fourier transform method; the result shows that the bimodal spectrum is given priority to this sea area, and the big wave appears in summer and autumn, the long period wave influence is opposite bigger that should be pay attention.

Squall Response Based Design of Floating Units in West Africa

2011 ◽  
Author(s):  
Juan Alvarez ◽  
Pierre Orsero ◽  
Valerie Quiniou-Ramus ◽  
Michel Franc¸ois ◽  
Anne-Gae¨lle Moysan ◽  
...  
Keyword(s):  
West Africa ◽  
Return Period ◽  
Relevant Information ◽  
Gulf Of Guinea ◽  
Mooring Lines ◽  
Design Procedures ◽  
Axial Tension ◽  
Classical Design ◽  
Extreme Responses ◽  
South Zone

Squalls are one of the main issues for the design of West Africa floating units mooring systems. At the present time and due to the lack of more relevant information and models, squalls are represented by on site time series of time varying wind speed and relative heading. The first FPSO units were designed on the basis of a reduced Squall database. Nowadays, the number of squall records has been significantly increased and a response based analysis can be carried out. The present paper is focused on the Gulf of Guinea environment. The area has been divided into two zones: North (Nigeria…) and South (Congo, Angola…). This approach enabled us to deal with 90 Squall events for North zone and 115 Squall events for South zone. Two different mooring systems, with quite different natural periods, have been investigated in order to cover the range of already installed spread moored FPSO’s. For every Squall of the database, time domain and modal simulations have been carried out in order to obtain the maximum values of the axial tension in mooring lines and of the offset of a standard spread moored unit. Then a statistical procedure is applied a) to estimate 100-year return period values for these parameters and b) to assess overall trends besides the differences between results from both zones and both mooring systems. A comparative study has also been carried out to relate the 100-year return period extrapolations with the values derived from classical design procedures in order to evaluate the potential design margins for extreme responses. Finally, areas needing further investigation are identified.

Monetary Policy

1962 ◽  
Vol 17 (01) ◽  
pp. 48-63
Author(s):  
H. W. Haycocks
Keyword(s):  
Full Employment ◽  
Severe Depression ◽  
Standard Of Living ◽  
Natural Phenomena ◽  
Human Beings ◽  
Simple Scheme ◽  
Long Period ◽  
Vested Interests ◽  
Full Capacity ◽  
One Year

I first became interested in economics round about 1931 when I started studying for the Fellowship. None of you have experienced what it is like to live through a severe depression. In Liverpool unemployment was some 25% to 30% of the insured population. My brother and two cousins lost their jobs and were out of work for a long period. It was extremely demoralizing for them and the character of one was adversely affected for the rest of his life. This situation influenced me very much and made me an ardent radical. It seemed to me ridiculous that an economy should be working at full capacity one year and at 75% to 50% the next. Something was clearly wrong with the way we organized things. The mistakes were those of human beings and not those of God. (At that time many people did think that such things as trade cycles and rates of interest were natural phenomena.) To my young and simple mind an economic plan seemed a simple scheme to construct and I felt that it was only the obstruction of vested interests and the ignorance of the general public that prevented enlightened people putting into operation a plan that would preserve full employment and a reasonable standard of living for everybody. The experience of recent years suggests that there is much truth in this.

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