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1
Chuan, Alwin, Minh T. Tran, Alice X. Sun, Tajrian Amin, Yan X. Chan, Benjamin S. Hanley, Shubash A. Quazi, Benjamin S. Xie e John N. Trantalis. "Age-related differences in cognition and postoperative quality of recovery after beach chair position shoulder surgery". Anaesthesia and Intensive Care 50, n. 3 (6 dicembre 2021): 169–77. http://dx.doi.org/10.1177/0310057x211020319.
Abstract (sommario):
We examined the influence of age in beach chair position shoulder surgery and postoperative quality of recovery by conducting a single-site, observational, cohort study comparing younger aged (18–40 years) versus older aged (at least 60 years) patients admitted for elective shoulder surgery in the beach chair position. Endpoints were dichotomous return of function to each patient’s individual preoperative baseline as assessed using the postoperative quality of recovery scale; measuring cognition, nociception, physiological, emotional, functional activities and overall perspective. We recruited 112 (41 younger and 71 older aged) patients. There was no statistical difference in cognitive recovery at day three postoperatively (primary outcome): 26/32 younger patients (81%) versus 43/60 (72%) older patients, P=0.45. Rates of recovery were age-dependent on domain and time frame (secondary outcomes), with older patients recovering faster in the nociceptive domain ( P=0.02), slower in the emotional domain ( P=0.02) and not different in the physiological, functional activities and overall perspective domains (all P >0.35). In conclusion, we did not show any statistically significant difference in cognitive outcomes between younger and older patients using our perioperative anaesthesia and analgesia management protocol. Irrespective of age, 70% of patients recovered by three months in all domains.
2
Toure, Mamadou, Aby Atsé Mathurin Saimon e Yao Alexis N’Guessan. "Dynamique du Littoral de Vridi-Port-Bouët (Abidjan, Côte d’Ivoire) : Caractérisation Géomorphologique et Sédimentologique". European Scientific Journal, ESJ 19, n. 30 (31 ottobre 2023): 200. http://dx.doi.org/10.19044/esj.2023.v19n30p200.
Abstract (sommario):
Cette étude porte sur la caractérisation géomorphologique et sédimentologique du secteur littoral de Vridi-Port-Bouët pour une révision des connaissances acquises en vue d’une meilleure compréhension des réponses morphologiques dans un contexte mondial de changement climatique sur un domaine littoral fortement dynamique. Pour ce faire, trois campagnes bimestrielles de levés topographiques de 7 profils cross shore de plage ont été réalisées à l’aide d’un niveau de chantier. Des sédiments ont été prélevés sur 4 profils à différents niveaux de l’estran (haut, mi et bas estran) dans le but de déterminer la granulométrie et la morphoscopie des grains de sables le long de ce secteur de côte. La vitesse du courant de dérive et le volume de sédiments transportés ont été déterminés à partir de la formule de Kaczmarek et al. (2005). De façon générale, l’ensemble des profils réalisés montre que certaines zones sont en érosion et d’autres plus ou moins stables. En effet, les profils C1, C2 et C7 présentent une instabilité du trait de côte avec une érosion significative de l’estran. Le secteur de plage au niveau du profil C6 est relativement stable.
Les sables sont très grossiers à grossiers et modérément à bien classés. Le skewness indique une symétrie granulométrique de l’échantillon pour les échantillons prélevés sur les sites 1 et 3. Sur le site 2, on a une symétrie vers les éléments fin. Les échantillons du site 4 présentent une asymétrie vers les éléments grossiers. Les grains de quartz évoluent de sub-anguleux non usés à arrondis et émoussés en passant du canal de Vridi au phare de Port-Bouët. On en déduit que la taille des grains diminue dans le sens de la dérive littorale. La vitesse du courant induit par la dérive littorale est évaluée à 0,65 m/s. Cela entraine un transport sédimentaire latéral de 0,02305 m3/s.
This study covers the geomorphological and sedimentological characterization of the coastal area of Vridi-Port-Bouët to revise the knowledge acquired with a view to a better understanding of morphological responses in a global context of climate change in a highly dynamic coastal zone. To this extent, three bimonthly topographic surveys of 7 cross-shore beach profiles were carried out using a construction level. Sediments were collected from 4 profiles at different levels of the foreshore (high, mid, and low foreshore) in order to determine granulometry and morphoscopy of sand grains along this stretch of coastline. The speed of the drift current and the volume of sediment transported were determined using the formula of Kaczmarek et al. (2005). Generally speaking, all the profiles produced show that some areas are eroding when others are more or less stable. Profiles C1, C2, and C7 show an unstable coastline, with significant erosion of the foreshore. The beach area on profile C6 is relatively stable. The sands are very coarse to coarse in size and moderately to well-graded. Skewness indicates particle size symmetry for samples taken at sites 1 and 3. On site 2, there is a symmetry towards fine elements. Samples from site 4 show asymmetry towards coarse elements. Quartz grains move from being sub-angular and unworn to rounded and blunt as they move from the Vridi canal to the Port-Bouët lighthouse. This suggests that grain size decreases in the direction of longshore drift. The current velocity induced is estimated at 0.65 m/s. This results in lateral sediment transport of 0.02305 m3/s.
3
Amani, Shafira Rizka, Taufik Rahman e Bambang Supriatno. "Profil literasi kelautan siswa SMKN Pulau Tidung melalui kegiatan ekstrakulikuler sekolah pantai Indonesia". Assimilation: Indonesian Journal of Biology Education 4, n. 1 (30 marzo 2021): 37–43. http://dx.doi.org/10.17509/aijbe.v4i1.34825.
Abstract (sommario):
The purposes of this research were to identify ocean literacy profile students of Tidung Island vocational high school who participated in the Indonesian Beach School extracurricular activities. Indonesian Beach School is a program of the Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia which aims to disseminate and outreach information about coastal and marine ecosystems to improve the utilization of human resources through education. The ocean literacy profile assessed three domains, knowledge (include cognitive skill), attitude, and behavior. The research method used is quantitative descriptive research and the subject of this study are first and second-grade students of Tidung Island vocational high school were joined Indonesian Beach School extracurricular activities. To reveal the ocean literacy profile, we used Instrument Ocean Literacy adapted from Development of the International Ocean Literacy Survey: measuring knowledge across the world (Cannadyet al., 2018; Salma, 2019), Development of Ocean Literacy Assessment Instrument for High School Student (Hindrasti Irawan, 2018). The results of this research revealed that domain knowledge 59% in the medium category, cognitive skill 41% in the medium category, attitude 80% in the high category, and behavior 50% in the high category. Through this research, we found that the ocean literacy profile of students of Tidung Island vocational high school is sufficient for the domain of knowledge, while domain attitude and behavior classified as good.
4
Anye, Valentine, Robert F. Kruger e Wolf-Dieter Schubert. "Structural and biophysical characterization of the multidomain xylanase Xyl". PLOS ONE 17, n. 6 (3 giugno 2022): e0269188. http://dx.doi.org/10.1371/journal.pone.0269188.
Abstract (sommario):
The depletion of fossil fuels, associated pollution, and resulting health hazards are of concern worldwide. Woody biomass constitutes an alternative source of cleaner and renewable energy. The efficient use of woody biomass depends on xylan depolymerisation as the endo-β-1,4-xylopyranosyl homopolymer is the main component of hemicellulose, the second most abundant component of wood. Xylan depolymerisation is achieved by hemicellulolytic xylanases of glycoside hydrolase (GH) families 5, 8, 10, 11, 30 and 43 of the CAZY database. We analysed a multidomain xylanase (Xyl) from the hindgut metagenome of the snouted harvester termite Trinervitermes trinervoides that releases xylobiose and xylotriose from beech and birch xylan and wheat arabinoxylan. The four domains of Xyl include an N-terminal GH11 xylanase domain, two family 36-like carbohydrate-binding domains CBM36-1 and 2, and a C-terminal CE4 esterase domain. Previous analyses indicated that CBM36-1 deletion slightly increased GH11 catalysis at low pH whereas removal of both CBMs decreased xylanase activity at 60°C from 90 to 56%. Possible cooperativity between the domains suggested by these observations was explored. A crystal structure of the two-domain construct, GH11-CBM36-1, confirmed the structure of the GH11 domain whereas the CBM36-1 domain lacked electron density, possibly indicating a random orientation of the CBM36-1 domain around the GH11 domain. Isothermal titration calorimetry (ITC) experiments similarly did not indicate specific interactions between the individual domains of Xyl supporting a “beads-on-a-string” model for Xyl domains.
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Burns, Ethan, Scott Kiesel e Wheeler Ruml. "Experimental Real-Time Heuristic Search Results in a Video Game". Proceedings of the International Symposium on Combinatorial Search 4, n. 1 (20 agosto 2021): 47–54. http://dx.doi.org/10.1609/socs.v4i1.18284.
Abstract (sommario):
In real-time domains such as video games, a planning algo- rithm has a strictly bounded time before it must return the next action for the agent to execute. We introduce a realistic video game benchmark domain that is useful for evaluating real-time heuristic search algorithms. Unlike previous bench- marks such as grid pathfinding and the sliding tile puzzle, this new domain includes dynamics and induces a directed graph. Using both the previous and new domains, we investigate sev- eral enhancements to a leading real-time search algorithm, LSS-LRTA*. We show experimentally that 1) it is not dif- ficult to outperform A* when optimizing goal achievement time, 2) it is better to plan after each action than to commit to multiple actions or to use a dynamically sized lookahead, 3) A*-based lookahead can cause undesirable actions to be selected, and 4) on-line de-biasing of the heuristic can lead to improved performance. We hope that this new domain and results will stimulate further research on applying real-time search to dynamic real-time domains.
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Domingo, Mari Carmen. "Deep Learning and Internet of Things for Beach Monitoring: An Experimental Study of Beach Attendance Prediction at Castelldefels Beach". Applied Sciences 11, n. 22 (14 novembre 2021): 10735. http://dx.doi.org/10.3390/app112210735.
Abstract (sommario):
Smart seaside cities can fully exploit the capabilities brought by Internet of Things (IoT) and artificial intelligence to improve the efficiency of city services in traditional smart city applications: smart home, smart healthcare, smart transportation, smart surveillance, smart environment, cyber security, etc. However, smart coastal cities are characterized by their specific application domain, namely, beach monitoring. Beach attendance prediction is a beach monitoring application of particular importance for coastal managers to successfully plan beach services in terms of security, rescue, health and environmental assistance. In this paper, an experimental study that uses IoT data and deep learning to predict the number of beach visitors at Castelldefels beach (Barcelona, Spain) was developed. Images of Castelldefels beach were captured by a video monitoring system. An image recognition software was used to estimate beach attendance. A deep learning algorithm (deep neural network) to predict beach attendance was developed. The experimental results prove the feasibility of Deep Neural Networks (DNNs) for beach attendance prediction. For each beach, a classification of occupancy was estimated, depending on the number of beach visitors. The proposed model outperforms other machine learning models (decision tree, k-nearest neighbors, and random forest) and can successfully classify seven beach occupancy levels with the Mean Absolute Error (MAE), accuracy, precision, recall and F1-score of 0.03, 92.7%, 92.9%, 92.7%, and 92.7%, respectively.
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Permathasari, Desak Putu, I. Wayan Restu e Made Ayu Pratiwi Pratiwi. "Tongkol Fishery Management using an Ecosystem Approach through an Assessment of the Status of Fish Resource Domains in the West Season Landed on Segara Kusamba Beach, Bali". Journal of Tropical Fisheries Management 5, n. 2 (18 dicembre 2021): 91–99. http://dx.doi.org/10.29244/jppt.v5i2.35152.
Abstract (sommario):
Segara Kusamba Beach, Klungkung, Bali is a beach with the main catch fishery product, namely Tongkol Fish. The high level of tongkol fishing activities on Segara Kusamba Beach must be balanced with proper management so that Tongkol Fish Resources remain sustainable. So a research was carried out that aims to determine the status of the utilization of tongkol fishery resources landed on Segara Kusamba Beach with an ecosystem approach to the fish resource domain. The research was conducted in November 2019-January 2020. Data was collected by direct observation and interviews. Data analysis for each indicator was carried out using a multi-criteria analysis approach, then composite index assessment and visualized with a flag model. The results showed that the tongkol fish Resource domain in Segara Kusamba Beach got a light green flag model with a good status and got a composite value of 69.43. The trend indicator for fish size is relatively constant, the indicator for the proportion of yuwana fish is 44% of the total catch, the 95% species composition indicator is dominated by tongkol as the target fish, the indicator for range collapse of fish resources is increasingly difficult in determining the fishing area, and on indicators There are no ETP species caught on the Segara Kusamba Beach. So that it can provide advice on capture fisheries management in the form of fishing period management, improved mesh size and better cooperation between steakholders and fishermen in order to create better tongkol fishing in Segara Kusamba Beach, Klungkung.
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Mohammad Ahmar Khan. "Advances in Traditional Electrical Validation of High-Speed Serial Connections Using Innovative Debugging Methods and Machine Learning Models." Journal of Electrical Systems 20, n. 6s (29 aprile 2024): 1016–23. http://dx.doi.org/10.52783/jes.2833.
Abstract (sommario):
As technology continues to shrink and more heterogeneous blocks are combined into single System on a chip (SOCs), the design of high-performance integrated circuits is getting more and more difficult. In the course of silicon validation, which includes testing (Wafer Testing, Automatic Test Equipment), digital validation (Functional Data route, FSM), analogue bench validation (Electrical, Interoperability), and system validation, a number of challenges that arise from the complicated design are uncovered. The process, methods, and constraints of each domain are unique. Electrical problems that have already passed through earlier stages of design are the primary focus of analogue validation. The analogue signal or mix signal nature of IPs makes it impossible for digital validation or any of the other post-silicon domains to discover electrical flaws on its own. As a result, studies focusing on analogue bench validation have grown in prominence. Recent developments in analogue bench validation, focusing on high-speed serial interface in particular, are highlighted in the proposed study. In addition, this article summarises recent technological developments that provide avenues for further study regarding analogue bench validation.
9
Robinson, Richard. "Far from Membranes, BEACH Domains Regulate Stress-Related mRNAs". PLOS Biology 13, n. 7 (2 luglio 2015): e1002189. http://dx.doi.org/10.1371/journal.pbio.1002189.
10
Chen, Guo-Yun, Hisako Muramatsu, Keiko Ichihara-Tanaka e Takashi Muramatsu. "Expression Profile of Mouse BWF1, a Protein with a BEACH Domain, WD40 Domain and FYVE Domain". Cell Structure and Function 29, n. 2 (2004): 35–42. http://dx.doi.org/10.1247/csf.29.35.
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Cullinane, Andrew R., Alejandro A. Schäffer e Marjan Huizing. "The BEACH Is Hot: A LYST of Emerging Roles for BEACH-Domain Containing Proteins in Human Disease". Traffic 14, n. 7 (24 aprile 2013): 749–66. http://dx.doi.org/10.1111/tra.12069.
12
Kindt, Merel, Susan Bögels e Mattijn Morren. "Processing Bias in Children with Separation Anxiety Disorder, Social Phobia and Generalised Anxiety Disorder". Behaviour Change 20, n. 3 (1 settembre 2003): 143–50. http://dx.doi.org/10.1375/bech.20.3.143.24832.
Abstract (sommario):
AbstractThe present study examined processing bias in children suffering from anxiety disorders. Processing bias was assessed using of the emotional Stroop task in clinically referred children with separation anxiety disorder (SAD), social phobia (SP), and/or generalised anxiety disorder (GAD) and normal controls. The aims of the present study were twofold: (a) to test whether clinically anxious children show a bias towards threat stimuli, and (b) to examine whether this bias is domain-specific. No evidence was obtained for either an anxiety-related bias towards threat, or a domain-specificity effect. Clearly, these findings diverge markedly from adult studies and stress the importance of further research on anxiety-related information processing in children.
13
Carranza-Edwards, Arturo, Leticia Rosales-Hoz e Susana Santiago-Pérez. "Provenance memories and maturity of holocene sands in northwest Mexico". Canadian Journal of Earth Sciences 31, n. 10 (1 ottobre 1994): 1550–56. http://dx.doi.org/10.1139/e94-137.
Abstract (sommario):
Beach and fluvial sediments from the region around Todos Santos Bay, Baja California, have been studied to determine their maturity, provenance, chemical alteration, and tectonic relationships. Analysis of the CaO–Na2O–K2O content of several samples demonstrated a difference between those from a beach environment and those from a fluvial environment. Transport affects the characteristics of the sediment, producing an enrichment of material resistant to chemical and physical attack on the beach area. The beach sand samples are mineralogically and chemically more mature than those from the fluvial sands. The provenance index (feldspar/rock fragments) gives relatively low average values for fluvial sands, provided that they are richer in rock fragments. The chemical index of alteration has low average values for beach sands because the minerals are more resistant to energy from waves and currents. Tectonic settings, defined through the binary diagram from Roser and Korsch, suggest that the samples belong to active continental margin and arc domains. When tectonic fields are assigned, based on a Q–F–L triangular diagram analysis, the sediments from the study area fall in an active magmatic arc field, even though this region is not presently subject to subduction.
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Boufadel, Michel C., e Makram T. Suidan. "TIDE-DRIVEN NUTRIENT TRANSPORT IN A BEACH MESOCOSM IN THE ABSENCE OF WAVES". International Oil Spill Conference Proceedings 1997, n. 1 (1 aprile 1997): 713–18. http://dx.doi.org/10.7901/2169-3358-1997-1-713.
Abstract (sommario):
ABSTRACT This paper investigates nutrient transport in a beach mesocosm operating under tidal action in the absence of waves. Numerical modeling results were compared to experimental data obtained from a tracer study on a mesocosm simulating a sand beach. Sodium chloride solution (simulating nutrient addition) was applied on the surface of the beach and was monitored at five locations in a 6.30-m length of sand plume. Both the numerical results and the experimental data agreed with findings from previously published data, where it was observed that the tracer plume moves downward and seaward and that the water table inside the beach is mostly above seawater level. Good agreement occurred between simulated water levels and observed levels; however, a mediocre fit was achieved between the simulated and the observed tracer concentrations because local variations existed in the saturated hydraulic conductivity, whereas the numerical model assumed a homogeneous domain. Implications of the results for bioremediation are discussed.
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Gullone, Eleonora, e Robert A. Cummins. "The Comprehensive Quality of Life Scale: A Psychometric Evaluation with an Adolescent Sample". Behaviour Change 16, n. 2 (1 giugno 1999): 127–39. http://dx.doi.org/10.1375/bech.16.2.127.
Abstract (sommario):
AbstractThe term quality of life (QOL) generally refers to the overall evaluation of an individual's life condition, on both objective and subjective dimensions. Quality of life research has focused on global evaluations of life satisfaction in adults. The life quality of adolescents and the performance of central life domains have largely been ignored. This study describes the psychometric properties of the Comprehensive Quality of Life Scale (ComQol) with an adolescent sample. In line with recent conceptualisations of QOL, ComQol assesses subjective and objective QOL on seven life domains. ComQol was administered along with two other self-report instruments (measuring fear and anxiety) to a sample of 264 school-based adolescents aged between 12 and 18 years. The scale yielded life satisfaction data that lay within the normative range for adults. Test-retest reliability and internal consistency analyses indicated that the scale has adequate reliability. In support of convergent validity, fear and anxiety were generally found to be significantly associated with lower levels of life quality. The present study supports the psychometric adequacy of ComQol as an instrument to measure the life quality of adolescents.
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Gebauer, Damara, Jiang Li, Gerwald Jogl, Yang Shen, David G. Myszka e Liang Tong. "Crystal Structure of the PH−BEACH Domains of Human LRBA/BGL†". Biochemistry 43, n. 47 (novembre 2004): 14873–80. http://dx.doi.org/10.1021/bi049498y.
17
Pinto, Celso Aleixo, Rui Taborda, César Andrade, Paulo Baptista, Paulo Alves Silva, Diogo Mendes e Joaquim Pais-Barbosa. "Morphological Development and Behaviour of a Shoreface Nourishment in the Portuguese Western Coast". Journal of Marine Science and Engineering 10, n. 2 (22 gennaio 2022): 146. http://dx.doi.org/10.3390/jmse10020146.
Abstract (sommario):
Current coastal protection strategy in Portugal defines beach and shoreface nourishment as a valid measure to mitigate coastal erosion in some erosional hot-spots, being considered as an adaptation measure under the present climate change scenario, including the impacts of sea level rise. However, scant objective data on shoreface nourishments are available to evaluate performance of this type of intervention in mitigating beach erosion and managing coast risk. We present the first monitoring results of a ≈2.4 × 106 m3 shoreface nourishment on the Aveiro coast (Costa Nova—Ílhavo), the largest until now in Portugal, focusing on its morphological development, impacts on adjacent beaches due to alongshore spreading and cross-shore redistribution, and contribution to the sediment budget of the nourished sediment cell. The analyses are based on high-resolution coastal monitoring data, provided by the Portuguese COaStal MOnitoring Program (COSMO). A Multiple Monitoring Cell (MMC) approach was used to evaluate local and feeder efficiency of the nourishment, sediment budget exchanges within both the placement and wider survey domains (≈1 km2 and 12 km2, respectively). Results show rapid (ca. 6 months) morphological change over the placement area, with a decrease of about 40% of the initial volume. Fast onshore sediment redistribution explains part of this change, placed sand having merged with the pre-existing bar system increased the volume of the shallower nearshore. Longshore transport is reflected by increasing the robustness of the bar downdrift of the placement area and also explains the negative sediment budget (0.75 × 106 m3) of the survey domain, which corresponds to losses through its southern boundary. Sediment spreading also induced accretion of the subaerial section of Costa Nova beaches in front of the placement area, reversing their long-term erosive trend. In contrast, this trend persisted at downdrift beaches. This suggests that the time lag of the subaerial beach response to this intervention increases with the distance to the placement area, and reversal of the erosive trend will only be noticeable in the following years. This study provides new insights on the time scales of beach response to high-magnitude shoreface interventions in high-energy wave-dominated sandy coasts, which will support decision making regarding similar operations designed to manage erosional hot-spots elsewhere.
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Oktaviani, Putu Devi, e Ida Ayu Suryasih. "Partisipasi Masyarakat Lokal Dalam Pengelolaan Wisata Bahari Di Pantai Semawang Kelurahan Sanur Kelod". JURNAL DESTINASI PARIWISATA 6, n. 2 (1 gennaio 2019): 341. http://dx.doi.org/10.24843/jdepar.2018.v06.i02.p22.
Abstract (sommario):
Tourism development in Denpasar, especially maritime tourism at Semawang Beach in Sanur Kelod has encourage the local community to participate in developing tourism on Semawang Beach. This phenomenon has create participation of local communities in the management of maritime tourism. This research aim to examine participation of local communities in the management of maritime tourism at Semawang Beach in Sanur Kelod. The advantage that are expected to be achieved from this research are academic and practical advantages.
This research is located at Semawang Beach in Sanur Kelod. The limits on the scope of this research includes motivation of local communities in management of maritime tourism and participation of local communities in the management of maritime tourism. Type of research data is in the form of qualitative and quantitative. Source of data obtained from primary and secondary data. Collection data techniques using observation, in-depth interview and documentation. Snowball sampling method has been used to determine informant and respondent
The result of this research shows that motivation of local communities in the management of maritime tourism at Semawang Beach in Sanur Kelod is motivation to improve the welfare of the society and the mutual relationship between the maritime tourism with the local citizen. The type of local communities participation in the management of maritime tourism at Semawang Beach in Sanur Kelod are divide by three domains, such as : (1) economic participation, by the local communities work in the field of marine tourism, (2) environtment participation, by implementing thebeach clean program at Semawang Beach, coral reef cleanup program, village deliberations are held to discuss various issues in the environment, participation of local communities in the efforts to protect the environment around Semawang Beach, participation of local communities in lending of vacant land as parking lots, (3) social culture participation, laying of typical Balinese statues and introduce the melukat culture to the tourist.
Keywords: Participation, local communities, sustainable tourism, maritime tourism, Semawang Beach
19
Saedler, Rainer, Marc Jakoby, Birger Marin, Elena Galiana-Jaime e Martin Hülskamp. "The cell morphogenesis geneSPIRRIGin Arabidopsis encodes a WD/BEACH domain protein". Plant Journal 59, n. 4 (agosto 2009): 612–21. http://dx.doi.org/10.1111/j.1365-313x.2009.03900.x.
20
Sánchez-Arcilla, A., V. Gracia e M. García. "Hydro morphodynamic modelling in Mediterranean storms: errors and uncertainties under sharp gradients". Natural Hazards and Earth System Sciences Discussions 2, n. 2 (20 febbraio 2014): 1693–728. http://dx.doi.org/10.5194/nhessd-2-1693-2014.
Abstract (sommario):
Abstract. This paper deals with the limits in hydrodynamic and morphodynamic predictions for semi-enclosed coastal domains subject to sharp gradients (in bathymetry, topography, sediment transport and coastal damages). It starts with an overview of wave prediction limits (based on satellite images) in a restricted domain such as is the Mediterranean basin, followed by an in-depth analysis of the Catalan coast, one of the land boundaries of such a domain. The morphodynamic modeling for such gradient regions is next illustrated with the simulation of the largest recorded storm in the Catalan coast, whose morphological impact is a key element of the storm impact. The driving wave and surge conditions produce a morphodynamic response that is validated against the pre and post storm beach state, recovered from two LIDAR images. The quality of the fit is discussed in terms of the physical processes and the suitability of the employed modeling equations. Some remarks about the role of the numerical discretization and boundary conditions are also included in the analysis. From here an assessment of errors and uncertainties is presented, with the aim of establishing the prediction limits for coastal engineering flooding and erosion analyses.
21
Carranza-Edwards, Arturo, e Leticia Rosales-Hoz. "Grain-size trends and provenance of southwestern Gulf of Mexico beach sands". Canadian Journal of Earth Sciences 32, n. 12 (1 dicembre 1995): 2009–14. http://dx.doi.org/10.1139/e95-153.
Abstract (sommario):
Sand samples from 30 beach locations of the southwestern Gulf of Mexico littoral zone were texturally and mineralogically investigated. Based on their source lithology and fluvial network, they were subdivided into two groups: (1) sands with volcanic rocks in the source region and (2) sands with a nonvolcanic source. Sands from foreshore and backshore areas exhibit similar textural characteristics, with less rock fragments than those from the inshore zone, where the high energy of breaking waves and littoral currents is present. A quartz–feldspar–rock fragment triangular diagram indicates that the proximity of volcanic sources is responsible for the enrichment of rock fragment content in the beach sands. Beach sands associated with Tampico and Veracruz embayments have greater quartz content, caused by a greater transport distance. Mineralogical maturity and provenance indexes used in a binary diagram are helpful in discriminating sand samples from volcanic and nonvolcanic domains.
22
Su, Yan. "Numerical Researches of Rectangular Barge in Variable Bathymetry Based on Boussinesq-Step Method". Advances in Civil Engineering 2022 (18 agosto 2022): 1–9. http://dx.doi.org/10.1155/2022/2209394.
Abstract (sommario):
Wave responses of the rectangular barge in variable bathymetry are investigated by combining the Boussinesq-type equations and the step method. The highly accurate Boussinesq-type equations in terms of velocity potential are adopted for simulating the evolution of waves along the inclined beach. Hydrodynamic coefficients of a rectangular barge floating on the inclined bottom are calculated by the step method in the frequency domain. Based on the impulse response function method, the motions of the barge can be predicted in the time domain. The Haskind relation is used to reform the wave exciting forces, and the mean offset in the sway motion is also given based on the mean drift force. The wave responses of the barge at different locations along the inclined beach are measured in the experiments. Compared with experimental results, the solutions of the Boussinesq-step method present an overall good agreement.
23
Sánchez-Arcilla, A., M. García-León e V. Gracia. "Hydro-morphodynamic modelling in Mediterranean storms – errors and uncertainties under sharp gradients". Natural Hazards and Earth System Sciences 14, n. 11 (17 novembre 2014): 2993–3004. http://dx.doi.org/10.5194/nhess-14-2993-2014.
Abstract (sommario):
Abstract. This paper deals with the limits in hydrodynamic and morphodynamic predictions for semi-enclosed coastal domains subject to sharp gradients (in bathymetry, topography, sediment transport and coastal damages). It starts with an overview of wave prediction limits (based on satellite images and buoy records) in a restricted domain, namely the Mediterranean basin, followed by an in-depth analysis of the Catalan coast, one of its land boundaries. The morphodynamic modelling for such regions is next discussed, based on the impact of a characteristic storm. The driving wave and surge conditions produce a morphodynamic response that is validated against the pre- and post-storm emerged beach state, recovered from two lidar images. The quality of the fit is discussed in terms of the physical processes and the suitability of the employed modelling suite. From here an assessment of errors and uncertainties is presented, with the aim of establishing the prediction limits for flooding and erosion analyses, key elements for coastal engineering decisions.
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Thompson, Ted, Brontë Mason e Iain Montgomery. "Worry and Defensive Pessimism: A Test of Two Intervention Strategies". Behaviour Change 16, n. 4 (1 dicembre 1999): 246–58. http://dx.doi.org/10.1375/bech.16.4.246.
Abstract (sommario):
AbstractThis study assessed the effectiveness of counterfactual reasoning and relaxation training in reducing worry and defensive pessimism. Thirty-three participants classified as both worriers and defensive pessimists were allocated to either counterfactual reasoning, relaxation training, or control groups. Participants in counterfactual reasoning and relaxation training groups attended four weekly training sessions. Significant reductions in worry between pre- and post-test were evident for scores on the Worry Domains Questionnaire, as well as a reduced tendency to engage in the kind of prototypical thinking characteristic of defensive pessimists as assessed by the Defensive Pessimism / Strategic Optimism Strategy Prototypes Questionnaire. Reductions were also evident in the percentage of the day spent worrying, the intrusiveness of worries, and ratings of the likelihood of worry events occurring.
25
Qiao, Huiting, Mingliang Zhang, Hengzhi Jiang, Tianping Xu e Hongxing Zhang. "Numerical study of hydrodynamic and salinity transport processes in the Pink Beach wetlands of the Liao River estuary, China". Ocean Science 14, n. 3 (11 giugno 2018): 437–51. http://dx.doi.org/10.5194/os-14-437-2018.
Abstract (sommario):
Abstract. Interaction studies of vegetation within flow environments are essential for the determination of bank protection, morphological characteristics and ecological conditions for wetlands. This paper uses the MIKE 21 hydrodynamic and salinity model to simulate the hydrodynamic characteristics and salinity transport processes in the Pink Beach wetlands of the Liao River estuary. The effect of wetland plants on tidal flow in wetland areas is represented by a varying Manning coefficient in the bottom friction term. Acquisition of the vegetation distribution is based on Landsat TM satellites by remote sensing techniques. Detailed comparisons between field observation and simulated results of water depth, salinity and tidal currents are presented in the vegetated domain of the Pink Beach wetlands. Satisfactory results were obtained from simulations of both flow characteristics and salinity concentration, with or without vegetation. A numerical experiment was conducted based on variations in vegetation density, and compared with the tidal currents in non-vegetated areas; the computed current speed decreased remarkably with an increase in vegetation density. The impact of vegetation on water depth and salinity was simulated, and the findings revealed that wetland vegetation has an insignificant effect on the water depth and salinity in this wetland domain. Several stations (from upstream to downstream) in the Pink Beach wetlands were selected to estimate the longitudinal variation of salinity under different river runoff conditions; the results showed that salinity concentration decreases with an increase in river runoff. This study can consequently help increase the understanding of favourable salinity conditions for particular vegetation growth in the Pink Beach wetlands of the Liao River estuary. The results also provide crucial guidance for related interaction studies of vegetation, flow and salinity in other wetland systems.
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Laia, Mohamad Yunus, e Fran Arventianus Wau. "SLANG EXPRESSION USED BY AUSTRALIAN TOURIST AT SORAKE BEACH SOUTH NIAS REGENCY". Ndrumi : Jurnal Ilmu Pendidikan dan Humaniora 5, n. 2 (26 settembre 2022): 1–11. http://dx.doi.org/10.57094/ndrumi.v5i2.488.
Abstract (sommario):
English language is devided into two kinds, they are Formal English and Informal English. In the field, Australian people who speak English use the informal English to communicate with their friends depends where they are and in what occasion they speak. And this informal English is called Slang. The purpose of this research was to describe the slang that produced by Australian Tourist at Sorake Beach and to classify the based on the types of slang. This research is focused on three domains, there are beach, surfcamp and shop. Then, this research was designed by using Qualitative Research. The data was taken from the Australian Tourist at Sorake Beach and the informants were seven (7) people. Researcher used Handphone as a tool to record their voices and the video during they speak to their friends. The result of the data shows that, the researcher found fifteen (15) Slang expressions that produced by Australian Tourist at Sorake Beach. Australian does speak and use the slang expressions in the their communication with their friends and they mostly use the Public slang in their communication because they usually drink beers and they stay at the beach. It can be concluded, slang is an informal expression that usually exist in English speaking to make the language more fashionable and attractive. The researcher suggests to the readers to use the result of the research as references to increase their knowledge about English and they can implement this research to communicate with the Australian tourist.
27
Miles, John. "Edge waves on a gently sloping beach". Journal of Fluid Mechanics 199 (febbraio 1989): 125–31. http://dx.doi.org/10.1017/s0022112089000315.
Abstract (sommario):
Edge waves of frequency ω and longshore wavenumber k in water of depth h(y) = h1H(σy/h1), 0 [les ] y < ∞, are calculated through an asymptotic expansion in σ/kh1 on the assumptions that σ [Lt ] 1 and kh1 = O(1). Approximations to the free-surface displacement in an inner domain that includes the singular point at h = 0 and the turning point near gh ≈ ω2/K2 and to the eigenvalue λ ≡ ω2/σgh are obtained for the complete set of modes on the assumption that h(y) is analytic. A uniformly valid approximation for the free-surface displacement and a variational approximation to Λ are obtained for the dominant mode. The results are compared with the shallow-water approximations of Ball (1967) for a slope that decays exponentially from σ to 0 as h increases from 0 to h1 and of Minzoni (1976) for a uniform slope that joins h = 0 to a flat bottom at h = h1 and with the geometrical-optics approximation of Shen, Meyer & Keller (1968).
28
McGhee, Jordan J., Nick Rawson, Barbara A. Bailey, Antonio Fernandez-Guerra, Laura Sisk-Hackworth e Scott T. Kelley. "Meta-SourceTracker: application of Bayesian source tracking to shotgun metagenomics". PeerJ 8 (24 marzo 2020): e8783. http://dx.doi.org/10.7717/peerj.8783.
Abstract (sommario):
Background Microbial source tracking methods are used to determine the origin of contaminating bacteria and other microorganisms, particularly in contaminated water systems. The Bayesian SourceTracker approach uses deep-sequencing marker gene libraries (16S ribosomal RNA) to determine the proportional contributions of bacteria from many potential source environments to a given sink environment simultaneously. Since its development, SourceTracker has been applied to an extensive diversity of studies, from beach contamination to human behavior. Methods Here, we demonstrate a novel application of SourceTracker to work with metagenomic datasets and tested this approach using sink samples from a study of coastal marine environments. Source environment metagenomes were obtained from metagenomics studies of gut, freshwater, marine, sand and soil environments. As part of this effort, we implemented features for determining the stability of source proportion estimates, including precision visualizations for performance optimization, and performed domain-specific source-tracking analyses (i.e., Bacteria, Archaea, Eukaryota and viruses). We also applied SourceTracker to metagenomic libraries generated from samples collected from the International Space Station (ISS). Results SourceTracker proved highly effective at predicting the composition of known sources using shotgun metagenomic libraries. In addition, we showed that different taxonomic domains sometimes presented highly divergent pictures of environmental source origins for both the coastal marine and ISS samples. These findings indicated that applying SourceTracker to separate domains may provide a deeper understanding of the microbial origins of complex, mixed-source environments, and further suggested that certain domains may be preferable for tracking specific sources of contamination.
29
Zhang, Jia, e Charles A. Langston. "Separating the scattered wavefield from teleseismic P using curvelets on the long beach array data set". Geophysical Journal International 220, n. 2 (24 ottobre 2019): 1112–27. http://dx.doi.org/10.1093/gji/ggz487.
Abstract (sommario):
SUMMARY A dense seismic array, composed of over 5000 stations with an average spacing close to 120 m was deployed in Long Beach, CA, by NodalSeismic and Signal Hill Petroleum as part of a survey associated with the Long Beach oilfield. Among many interesting wave propagation effects that have been reported by others, we observe that the coda of teleseismic P waves display waves caused by obvious local scattering from the Signal Hill popup structure between strands of the Newport-Inglewood fault. The density of the seismic array allows space-based methods, such as the Curvelet transform, to be investigated to separate the teleseismic and local scattered wavefields. We decompose a synthetic wavefield composed of a teleseismic plane wave and local scattered spherical wave in the curvelet domain to test the plausibility of our curvelet analysis and then apply the technique to the Long Beach array data set. Background noise is removed by a soft thresholding method and a declustering technique is applied to separate the teleseismic and local scattered wavefield in the curvelet domain. Decomposed results illustrate that the signal-to-noise ratio of the teleseismic P wave can be significantly improved by curvelet analysis. The scattered wavefield is composed of locally propagating Rayleigh waves from the pop-up structure and from the Newport Inglewood fault itself. Observing the wavefield both in space and time clearly improves understanding of wave propagation complexities due to structural heterogeneity.
30
Javidi, Zhila, Malcolm Battersby e Angus Forbes. "A Case Study of Trichotillomania With Social Phobia: Treatment and 4-Year Follow-up Using Cognitive–Behaviour Therapy". Behaviour Change 24, n. 4 (1 novembre 2007): 231–43. http://dx.doi.org/10.1375/bech.24.4.231.
Abstract (sommario):
AbstractThis article describes a case study that demonstrates an innovative combination of predominantly behavioural techniques in the treatment of trichotillomania (TTM) preceded by social phobia. Outcomes are reported to 4-year follow-up. A master's qualified cognitive–behavioural nurse therapist administered the course of treatment over 1 year and followed the client for 4 years. A combination of exposure and response prevention, habit reversal and serial photography for TTM urges, exposure for social phobia, cognitive restructuring and problem solving were utilised. These treatments were provided sequentially and concurrently. Pre and posttreatment and repeated outcome measures were applied in three domains. The client received a total of 23 treatment sessions over 1 year and follow-up over 4 years. During treatment, discharge and follow-up improved outcomes in TTM and social phobia were achieved and maintained at 4 years. Benefits accrued beyond the presenting conditions to have a major positive impact on the client's life. Theoretical implications for the classification of TTM are discussed.
31
Hirai, Michiyo, Heather M. Cochran, Jennifer S. Meyer, Jennifer L. Butcher, Laura L. Vernon e Elizabeth A. Meadows. "A Preliminary Investigation of the Efficacy of Disgust Exposure Techniques in a Subclinical Population With Blood and Injection Fears". Behaviour Change 25, n. 3 (1 settembre 2008): 129–48. http://dx.doi.org/10.1375/bech.25.3.129.
Abstract (sommario):
AbstractThe current study examined whether a traditional exposure-based treatment for blood-injection-injury (BII) phobia would be effective at reducing disgust responses to BII stimuli and whether the addition of modules targeting disgust would provide incremental efficacy. Participants, many of whom reported subclinical BII phobia symptoms, underwent one of two single-session exposure protocols, one targeting fear alone, and the other targeting both fear and disgust. Both treatments consisted of education components (fear-only or fear-disgust) and in vivo exposure (fear-only or fear-disgust). Both the fear-only and the fear-disgust treatment groups significantly decreased fear and avoidance behaviour toward BII stimuli over time. The two groups also experienced similar reductions in disgust responses to BII-related stimuli and global as well as domain-specific disgust sensitivity. The effect sizes indicated that the fear-disgust group evidenced greater reduction in symptoms than did the fear-only group. The implications of the results for models of phobia maintenance and treatment are discussed.
32
Hamernik, Elizabeth, e Kenneth I. Pakenham. "Assertive Community Treatment for Persons with Severe Mental Disorders: A Controlled Treatment Outcome Study". Behaviour Change 16, n. 4 (1 dicembre 1999): 259–68. http://dx.doi.org/10.1375/bech.16.4.259.
Abstract (sommario):
AbstractThe present study evaluated the efficacy of an Assertive Community Treatment (ACT) program for the seriously mentally ill. Outcomes of the program were assessed at baseline and 12-month follow-up and were compared with that of a control group, which received standard community care. Thirty-six subjects with serious mental disorders participated in the study. Dependent measures included number of hospital admissions and hospital bed days per year, life skills, quality of life, and psychiatric symptoms. Results of 2 x 2 (treatment/control group x baseline / 12-month follow-up) repeated measures ANOVAs indicated that, after 1 year, both treatments lead to a significant reduction in hospital admissions and bed days, and to improvement in life skills. ACT subjects evidenced a greater decrease in psychiatric symptoms compared to control group subjects. In general, markedly more ACT subjects showed reliable clinical change in life skills, quality of life, and psychiatric symptoms than control subjects. Although the ACT did produce greater clinical change than standard case management, it did not produce statistically greater improvement across most domains of functioning in the short term.
33
Lorian, Carolyn N., e Jessica R. Grisham. "The Safety Bias: Risk-Avoidance and Social Anxiety Pathology". Behaviour Change 27, n. 1 (1 aprile 2010): 29–41. http://dx.doi.org/10.1375/bech.27.1.29.
Abstract (sommario):
AbstractBackground:The pervasive tendency to avoid perceived risks has been recently implicated in the maintenance of anxiety pathology, and more specifically, social phobia. Social anxiety symptoms are thus hypothesised to be associated with a global risk-avoidant decision-making bias.Aim:This study investigated: (1) the relationship between risk-avoidance and social anxiety symptoms using both self-report and behavioural measures of risk-taking; and (2) whether risk-avoidance mediates the relationship between a dispositional vulnerability to anxiety (Behavioural Inhibition System [BIS] sensitivity) and social anxiety symptoms.Method:Fifty-five undergraduate students completed self-report measures assessing for social anxiety symptoms, risk-taking across various domains, and BIS sensitivity. Risk-avoidance was also assessed using a behavioural computer task.Results:As hypothesised, risk-avoidance correlated significantly with both social anxiety and BIS. Multiple regression analyses revealed that risk-avoidance served as a partial mediator between BIS and social anxiety.Conclusion:These results confirm the hypothesised relationship between BIS, risk-avoidance, and social anxiety symptoms. Risk-avoidance is one possible mechanism by which personality characteristics may be linked to anxiety pathology.
34
Jogl, G. "Crystal structure of the BEACH domain reveals an unusual fold and extensive association with a novel PH domain". EMBO Journal 21, n. 18 (16 settembre 2002): 4785–95. http://dx.doi.org/10.1093/emboj/cdf502.
35
Wang, Chun Ping. "Research on Query Mechanism of Moving Object Database". Applied Mechanics and Materials 530-531 (febbraio 2014): 823–26. http://dx.doi.org/10.4028/www.scientific.net/amm.530-531.823.
Abstract (sommario):
Since the mobile radio communication in a wireless mobile environment, which inevitably subject to fading and interference effects of the various signals, multipath and time-domain signal to bring the mobile domain and frequency dispersion problems, bandwidth resources restricted and transmission delay increases and so on. In this paper, the use of Class R-Tree data structure to store the data on the basis of historical trajectory, the update query results by the beach line iterative way to solve the problem of nearest neighbor queries efficiently update existing intermediate results.
36
Fa’izah, Laela Noor, Ning Setiati e Nana Kariada Tri Martuti. "Development of Mollusca Diversity E-Booklet at Bondo Beach Jepara to Improve Student Learning Outcomes". Journal of Innovative Science Education 12, n. 2 (31 agosto 2023): 245–53. http://dx.doi.org/10.15294/jise.v12i2.72533.
Abstract (sommario):
Observation results obtained by the availability of learning resources used are still less diverse and do not support the learning objectives achieved. The learning resources used are still limited to book packages, Student Worksheets (LKS) and Power Points (PPt). The biodiversity in Jepara Bondo Beach is very high which has not been used as a source of learning biology at SMA Islam Nusantara and SMA PGRI Jepara. The environment around the school has not been used as a learning resource because it has not represented biological wealth. Therefore, Jepara Bondo Beach is a representative place to be used as a source of learning that is close to schools. This study aims to develop an e-booklet on the diversity of Mollusca at Bondo Beach, Jepara in a factual, systematically arranged according to the material, valid, effective in increasing learning outcomes in the cognitive and psychomotor domains in practicing oral communication skills in the sub-material classification of living things. This research uses the development method (R&D) with the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). The research data were analyzed for its characteristics, validity and effectiveness. The results of the study can be concluded that the e-booklet characteristics of Mollusca paintings on Bondo Beach Jepara are factual which are arranged systematically so that they can reach TP 10.1 to 10.3, the e-booklet is very valid and feasible to use based on expert judgment, and is effective in increasing cognitive and psychomotor learning outcomes in practicing oral communication skills.
37
Alhanouti, Muhammed, e Frank Gauterin. "Robust Speed Control of a Multi-Mass System: Analytical Tuning and Sensitivity Analysis". Applied Sciences 13, n. 24 (15 dicembre 2023): 13268. http://dx.doi.org/10.3390/app132413268.
Abstract (sommario):
The regeneration of highly dynamic driving maneuvers on vehicle test benches is challenging due to several influences, such as power losses, vibrations in the overall system that involves the vehicle with the test bench, uncertainties in the model parameterization, and time delays from both the test bench and the measurement systems. In order to improve the dynamic response of the vehicle test bench and to overcome system disturbances, we employed different types of control algorithms for a mechanical multi-mass model. First, those controllers are extensively investigated in the frequency domain to analyze their stability and evaluate the noise rejection quality. Then, the expectations from the frequency analysis are confirmed in a time-domain simulation. Furthermore, sensitivity analysis tests were conducted to evaluate each controller’s robustness against the modeling parameters’ uncertainty. The linear quadratic controller with integral action demonstrated the best compromise between performance and robustness.
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Paepen, Marieke, Daan Hanssens, Philippe De Smedt, Kristine Walraevens e Thomas Hermans. "Combining resistivity and frequency domain electromagnetic methods to investigate submarine groundwater discharge in the littoral zone". Hydrology and Earth System Sciences 24, n. 7 (15 luglio 2020): 3539–55. http://dx.doi.org/10.5194/hess-24-3539-2020.
Abstract (sommario):
Abstract. Submarine groundwater discharge (SGD) is an important gateway for nutrients and pollutants from land to sea. While understanding SGD is crucial for managing nearshore ecosystems and coastal freshwater reserves, studying this discharge is complicated by its occurrence at the limit between land and sea, a dynamic environment. This practical difficulty is exacerbated by the significant spatial and temporal variability. Therefore, to capture the magnitude of SGD, a variety of techniques and measurements, applied over multiple periods, is needed. Here, we combine several geophysical methods to detect zones of fresh submarine groundwater discharge (FSGD) in the intertidal zone, upper beach, dunes, and shallow coastal area. Both terrestrial electrical-resistivity tomography (ERT; roll-along) and marine continuous resistivity profiling (CRP) are used from the shallow continental shelf up to the dunes and combined with frequency domain electromagnetic (FDEM) mapping in the intertidal zone. In particular, we apply an estimation of robust apparent electrical conductivity (rECa) from FDEM data to provide reliable lateral and vertical discrimination of FSGD zones. The study area is a very dynamic environment along the North Sea, characterized by semi-diurnal tides between 3 and 5 m. CRP is usually applied in calmer conditions, but we prove that such surveys are possible and provide additional information to primarily land-bound ERT surveying. The 2D inversion models created from ERT and CRP data clearly indicate the presence of FSGD on the lower beach or below the low-water line. This discharge originates from a potable freshwater lens below the dunes and flows underneath a thick saltwater lens, present from the dunes to the lower sandy beach, which is fully observed with ERT. Freshwater outflow intensity has increased since 1980, due to a decrease of groundwater pumping in the dunes. FDEM mapping at two different times reveals discharge at the same locations, clearly displays the lateral variation of the zone of discharge, and suggests that FSGD is stronger at the end of winter compared to the beginning of autumn. ERT, CRP, and FDEM are complementary tools in the investigation of SGD. They provide a high-resolution 3D image of the saltwater and freshwater distribution in the phreatic coastal aquifer over a relatively large area, both off- and onshore.
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Postacchini, Matteo, e Giovanni Ludeno. "Combining Numerical Simulations and Normalized Scalar Product Strategy: A New Tool for Predicting Beach Inundation". Journal of Marine Science and Engineering 7, n. 9 (19 settembre 2019): 325. http://dx.doi.org/10.3390/jmse7090325.
Abstract (sommario):
The skills of the Normalized Scalar Product (NSP) strategy, commonly used to estimate the wave field, as well as bathymetry and sea-surface current, from X-band radar images, are investigated with the aim to better understand coastal inundation during extreme events. Numerical simulations performed using a Nonlinear Shallow-Water Equations (NSWE) solver are run over a real-world barred beach (baseline tests). Both bathymetry and wave fields, induced by reproducing specific storm conditions, are estimated in the offshore portion of the domain exploiting the capabilities of the NSP approach. Such estimates are then used as input conditions for additional NSWE simulations aimed at propagating waves up to the coast (flood simulations). Two different wave spectra, which mimic the actual storm conditions occurring along the coast of Senigallia (Adriatic Sea, central Italy), have been simulated. The beach inundations obtained from baseline and flood tests related to both storm conditions are compared. The results confirm that good predictions can be obtained using the combined NSP–NSWE approach. Such findings demonstrate that for practical purposes, the combined use of an X-band radar and NSWE simulations provides suitable beach-inundation predictions and may represent a useful tool for public authorities dealing with the coastal environment, e.g., for hazard mapping or warning purposes.
40
Wang, Nana, Jinxiang Liu, Qing Zhang, Hailin Yang e Mu Tang. "Fatigue life evaluation and failure analysis of light beam direction adjusting mechanism of an automobile headlight exposed to random loading". Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, n. 2 (24 novembre 2017): 224–31. http://dx.doi.org/10.1177/0954407017740445.
Abstract (sommario):
Failure of the light beam direction adjusting mechanism (LDAM) of an automotive headlight might occur after hundreds of driving hours, though the strength of components conforms to the requirement specified in the random vibration bench test standard. In order to determine the causes of the failure, fatigue life prediction and failure analysis based on numerical method of the LDAM exposed to random loading both in bench test and field experiment were carried out. In the bench test analysis, the Dirlik method was utilized to calculate the lifetime by taking the power spectrum density in the frequency domain. In the fatigue analysis for the field experimental loading, to consider the effect of nonuniform temperature distribution, a numerical process in time domain is developed to calculate the lifetime of the LDAM subjected to the random vibration caused by road surface roughness. As a result, the predicted life and failure locations are in good agreement with real life and actual failure regions, respectively.
41
Chapman, Piers, Scott Socolofsky e Robert Hetland. "FROM BLOWOUT TO BEACH: AN INTEGRATED MODELING APPROACH". International Oil Spill Conference Proceedings 2014, n. 1 (1 maggio 2014): 919–32. http://dx.doi.org/10.7901/2169-3358-2014.1.919.
Abstract (sommario):
ABSTRACT As part of the response to the BP Deepwater Horizon spill in 2010, we have been funded by the Gulf of Mexico Research Initiative to construct a nested model suite that can follow an oil particle from its first release to its arrival on a shoreline, taking into account natural rates of mixing and degradation of the oil components. The model suite incorporates (at increasing levels of resolution) a coupled ocean-atmosphere model of the full Gulf of Mexico and North Atlantic Ocean, a deep Gulf of Mexico model, a regional model of the Texas-Louisiana shelf, a 3D, non-hydrostatic bay model, a 3D Navier-Stokes model of the spill plume, and a particle tracking and transformation model for dispersed and dissolved oil and gas fate and transport integrated within the full flow domain. The models are supported by a series of laboratory and field experiments, including studies of single droplets, with and without dispersant, plumes, a deep-sea tracer release experiment and bubble releases to simulate an underwater blowout. The laboratory experiments will improve modeling of small-scale, near-field processes such as bubble and droplet formation, dissolution, droplet-turbulence interaction, and evaporation and dispersion at the air-sea interface. We show how the models are linked and how we are making progress towards the complete nested model suite, which will be available for use in future spills.
42
Jia, Xiaoyan, Junqiu LI, Qinghui Zhang, Meilin Zhang, Yiting Jin e Yang Ding. "Analysis of critical states based on acoustic emission signals during progressive failure of wood". PLOS ONE 19, n. 5 (16 maggio 2024): e0302528. http://dx.doi.org/10.1371/journal.pone.0302528.
Abstract (sommario):
The analysis of critical states during fracture of wood materials is crucial for wood building safety monitoring, wood processing, etc. In this paper, beech and camphor pine are selected as the research objects, and the acoustic emission signals during the fracture process of the specimens are analyzed by three-point bending load experiments. On the one hand, the critical state interval of a complex acoustic emission signal system is determined by selecting characteristic parameters in the natural time domain. On the other hand, an improved method of b_value analysis in the natural time domain is proposed based on the characteristics of the acoustic emission signal. The K-value, which represents the beginning of the critical state of a complex acoustic emission signal system, is further defined by the improved method of b_value in the natural time domain. For beech, the analysis of critical state time based on characteristic parameters can predict the “collapse” time 8.01 s in advance, while for camphor pines, 3.74 s in advance. K-value can be analyzed at least 3 s in advance of the system “crash” time for beech and 4 s in advance of the system “crash” time for camphor pine. The results show that compared with traditional time-domain acoustic emission signal analysis, natural time-domain acoustic emission signal analysis can discover more available feature information to characterize the state of the signal. Both the characteristic parameters and Natural_Time_b_value analysis in the natural time domain can effectively characterize the time when the complex acoustic emission signal system enters the critical state. Critical state analysis can provide new ideas for wood health monitoring and complex signal processing, etc.
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Overton, Sarah M., e Ross G. Menzies. "Cognitive Change During Treatment of Compulsive Checking". Behaviour Change 22, n. 3 (1 giugno 2005): 172–84. http://dx.doi.org/10.1375/bech.2005.22.3.172.
Abstract (sommario):
AbstractCognitive variables hypothesised to be mediating obsessive—compulsive behaviour include an overestimation of the probability and consequences of danger, a sense of overinflated personal responsibility for harm to oneself or others, a belief in the overimportance of thoughts, a lack of confidence in memory, an intolerance of uncertainty and a need to control thoughts. In the present study, the relationship between these variables and improvement in OCD symptoms was examined. Fourteen obsessive—compulsives with checking concerns completed a 12-session treatment program of exposure and response prevention (ERP). Before and after treatment, subjects completed the Maudsley Obsessional-Compulsive Inventory (MOCI) and a self-rating of severity (SER), and each week they completed the Yale-Brown Obsessive Compulsive Scale (YBOCS) and answered seven questions that were used to rate their beliefs in the six cognitive domains outlined above. Changes in perception of danger, intolerance of uncertainty and need to control thoughts all correlated significantly with improvement in symptoms. Moreover, significant changes in these variables occurred immediately prior to or concurrent with major symptom improvement, supporting the possibility that they are mediators of the disorder. Changes in ratings of responsibility, overimportance of thoughts and confidence in memory were not related to improvements in compulsive checking on any scale and, in the case of responsibility, ratings actually increased (i.e., worsened) in the week prior to major improvement in symptoms. For most subjects, major reductions in responsibility ratings only took place after symptom reduction. The implications of these findings for the role of these variables in mediating obsessive—compulsive checking are discussed.
44
Khodosh, R., A. Augsburger, T. L. Schwarz e P. A. Garrity. "Bchs, a BEACH domain protein, antagonizes Rab11 in synapse morphogenesis and other developmental events". Development 133, n. 23 (1 novembre 2006): 4655–65. http://dx.doi.org/10.1242/dev.02650.
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Wenninger, Sebastian, Daniel Link e Martin Lames. "Performance of machine learning models in application to beach volleyball data." International Journal of Computer Science in Sport 19, n. 1 (1 luglio 2020): 24–36. http://dx.doi.org/10.2478/ijcss-2020-0002.
Abstract (sommario):
AbstractDriven by the increased availability of position and performance data, automated analyses are becoming the daily routine in many top-level sports. Methods from the domains of data mining and machine learning are more frequently used to generate new insights from massive amounts of data. This study evaluates the performance of four current models (multi-layer perceptron, convolutional network, recurrent network, gradient boosted tree) in classifying tactical behaviors on a beach volleyball dataset consisting of 1,356 top-level games. A three-way between-subjects analysis of variance was conducted to determine the effects of model, input features and target behavior on classification accuracy. Results show significant differences in classification accuracy between models as well as significant interaction effects between factors. Our models achieve classification performance similar to previous work in other sports. Nonetheless, they are not yet at the level to warrant practical application in day to day performance analysis in beach volleyball.
46
Risandi, Johan, Dirk P. Rijnsdorp, Jeff E. Hansen e Ryan J. Lowe. "Hydrodynamic Modeling of a Reef-Fringed Pocket Beach Using a Phase-Resolved Non-Hydrostatic Model". Journal of Marine Science and Engineering 8, n. 11 (4 novembre 2020): 877. http://dx.doi.org/10.3390/jmse8110877.
Abstract (sommario):
The non-hydrostatic wave-flow model SWASH was used to investigate the hydrodynamic processes at a reef fringed pocket beach in southwestern Australia (Gnarabup Beach). Gnarabup Beach is a ~1.5 km long beach with highly variable bathymetry that is bounded by rocky headlands. The site is also exposed to large waves from the Southern Ocean. The model performance was evaluated using observations collected during a field program measuring waves, currents and water levels between June and July 2017. Modeled sea-swell wave heights (periods 5–25 s), infragravity wave heights (periods 25–600 s), and wave-induced setup exhibited moderate to good agreement with the observations throughout the model domain. The mean currents, which were highly-spatially variable across the study site, were less accurately predicted at most sites. Model agreement with the observations tended to be the worst in the areas with the most uncertain bathymetry (i.e., areas where high resolution survey data was not available). The nearshore sea-swell wave heights, infragravity wave heights and setup were strongly modulated by the offshore waves. The headlands and offshore reefs also had a strong impact on the hydrodynamics within the lagoon (bordered by the reefs) by dissipating much of the offshore sea-swell wave energy and modifying the pattern of the nearshore flows (magnitude and direction). Wave breaking on the reef platforms drove strong onshore directed mean currents over the reefs, resulting in off-shore flow through channels between the reefs and headlands where water exchanges from the lagoon to ocean. Our results demonstrate that the SWASH model is able to produce realistic predictions of the hydrodynamic processes within bathymetrically-complex nearshore systems.
47
Quispe Chávarri, Nilmer. "Slope Design in Surface Mining with a Total Probability Methodology [Diseño de Taludes en Minería Superficial con una Metodología de Probabilidad Total]". Journal of Sciences and Engineering 8, n. 1 (15 marzo 2024): 20–37. http://dx.doi.org/10.32829/sej.v8i1.208.
Abstract (sommario):
The main goal of this research is to propose a methodology for the design of optimal slopes in surface mining, by applying the probability of total failure in the process of determining the geometry of the berm-bench of rock slopes. The rock mass is characterized by being a discontinuous, anisotropic and random medium. Therefore, to design slopes, a deterministic value or Safety Factor that represents the reliability of the design is not sufficient, and the inherent uncertainty of the geotechnical properties must be considered. The stability of slopes at bench level is a function of the quality of the rock mass and is controlled by the strength of the intact rock, the structural rocks, or a combination of both. When the slope has a defined structural control, planar, wedge or toppling failure modes are formed; These, depending on the stability conditions and generates rockfall events. Therefore, it is necessary to apply an effective method to establish the optimal geometry of the bench. The purpose of the berm-bench is to retain and mitigate the risk of rockfall and contain spill from upper slopes due to inherent instabilities, to provide a safe environment for personnel and equipment working near the slopes. The proposed methodology considers the variability of the dip, dip direction, persistence, and friction of the discontinuities. The procedure begins with the collection and analysis of the geotechnical information of the rock mass, which defines geotechnical domains, design sectors and main families of discontinuities; then, statistical analysis and kinematic evaluation are carried out and the conceptual berm width is determined; finally, the kinetic and probability of total failure analysis is carried out, validating the design geometry. The research focused on a domain with 04 sectors of geotechnical design. The results show that the applicable design bench face angle is between 53° and 71°, which corresponds to a berm width of 9.3m to 8.6m and a geometric interramp angle between 36° and 48° respectively. Likewise, probabilities of total planar failure of up to 31% and total wedge of 41% were obtained according to the geotechnical peculiarities of each sector. It was proven that, in the sectors with a greater probability of failure, a lower bench face angle and a greater catch bench of the design berm are considered acceptable designs, due to a greater probability of crest loss. Finally, in the sectors with a lower probability of failure, a greater interramp angle is considered an acceptable design. In conclusion, through the applied methodology it has been demonstrated that the results of the berm-bench design process meet the acceptability criteria of the Probability of Failure. Therefore, the developed method, which considers the variability of the parameters of the rock mass discontinuities, allows designing safe and reliable slopes validated through an acceptable level of probability.
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Yu, Jun Wei, Nan Liu e Bin Wang. "Road Roughness Measurement and Analysis for Vehicle Bench Test". Applied Mechanics and Materials 596 (luglio 2014): 490–93. http://dx.doi.org/10.4028/www.scientific.net/amm.596.490.
Abstract (sommario):
Road roughness, the most direct automotive input, is a kind of basic data. Its analysis and applications have important effects on vehicle performance. Several methods such as wavelet analysis, amplitude-domain analysis, frequency-domain analysis are used to analyze the road elevation series of a highway. Through some disposal of the original survey data, a series of representative data has been taken to reproduction test in a 4-poster road simulator. Both analyses and test results show that, the proposed methods can be used for the actual data process of road roughness and in the vehicle bench test.
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Liu, Xuezhao, Yang Li, Xin Wang, Ruxiao Xing, Kai Liu, Qiwen Gan, Changyong Tang et al. "The BEACH-containing protein WDR81 coordinates p62 and LC3C to promote aggrephagy". Journal of Cell Biology 216, n. 5 (12 aprile 2017): 1301–20. http://dx.doi.org/10.1083/jcb.201608039.
Abstract (sommario):
Autophagy-dependent clearance of ubiquitinated and aggregated proteins is critical to protein quality control, but the underlying mechanisms are not well understood. Here, we report the essential role of the BEACH (beige and Chediak–Higashi) and WD40 repeat-containing protein WDR81 in eliminating ubiquitinated proteins through autophagy. WDR81 associates with ubiquitin (Ub)-positive protein foci, and its loss causes accumulation of Ub proteins and the autophagy cargo receptor p62. WDR81 interacts with p62, facilitating recognition of Ub proteins by p62. Furthermore, WDR81 interacts with LC3C through canonical LC3-interacting regions in the BEACH domain, promoting LC3C recruitment to ubiquitinated proteins. Inactivation of LC3C or defective autophagy results in accumulation of Ub protein aggregates enriched for WDR81. In mice, WDR81 inactivation causes accumulation of p62 bodies in cortical and striatal neurons in the brain. These data suggest that WDR81 coordinates p62 and LC3C to facilitate autophagic removal of Ub proteins, and provide important insights into CAMRQ2 syndrome, a WDR81-related developmental disorder.
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Grenon, Martin, e Amélie-Julie Laflamme. "Inter-ramp and bench design of open-pit mines: the Portage pit case study". Canadian Geotechnical Journal 48, n. 11 (novembre 2011): 1601–15. http://dx.doi.org/10.1139/t11-062.
Abstract (sommario):
Using a case study, this paper presents an integrated methodology for assessing structural slope stability at the inter-ramp and bench levels. Robust algorithms have been developed and implemented to compute, at inter-ramp and bench levels, slope orientations and slope stability using input data compatible with a commercially available mine-design software tool database structure. Multi-criteria stability analyses were performed based on various design criteria. Susceptibility maps were produced enabling the identification of zones of concern in the designed pit. The obtained results suggest that inter-ramp angles do not present instability concerns over the entire pit surface. At bench levels, potential instability zones were identified within two structural domains totalling 6% of the total pit surface.