CFD Simulations of Wave Propagation and Shoaling over a Submerged Bar

The wave propagation over a submerged bar is simulated using the open source CFD model REEF3D and the numerical results are compared to the experimental data. The transformation of the wave resulting in higher harmonics in the wave train is observed as the wave propagates over the crest of the bar. The difference between the wave transformation processes for two different incident wave heights…

Performance of Variable Selection Method for the Damage Level Prediction of R…

selection methods available. The purpose of this paper is to explore the application of Principal Component Regression (PCR)analysis for the selection of variables. Data to perform the analysis was obtained from the experimental studies conducted to measure the damage level of the reshaped berm breakwater. For the analysis, damage level was considered as the output variable and the other influe…

Polyphenols are responsible for the proapoptotic properties of pomegranate ju…

Pomegranates have shown great promise as anti-cancer agents in a number of cancers including clinical trials in prostate cancer. We have previously shown pomegranate juice (PGJ) induced apoptosis and preferentially alters the cell cycle in leukemia cell lines compared with nontumor control cells. However, the agents responsible have not yet been fully elucidated. Treatment of four leukemia cell…

Soil Structure Interaction Analysis of a Dry Dock

Pile foundation is one of the most popular forms of deep foundations and is widely used for supporting water front structures in weak soils characterized by low shear strength and high compressibility, and also in structures which are subjected to heavy lateral loadings and moments. The lateral forces are mainly due to berthing forces and lateral earth pressure due to unstable slope as a res…

Influence of Antiplatelet Medications on Bleeding Events in Hemodialysis Pati…

Although antiplatelet medication is used in various situations, including for the prevention of ischemic and thrombotic complications, long-term antiplatelet therapy in hemodialysis patients who are at high risk of bleeding may result in a harmful bleeding tendency. We investigated bleeding events that required the cessation of the use of heparin for hemodialysis in all the hemodialysis patient…

A Note on Short-term Wave Height Statistics

Short-term wave height distributions in intermediate water depthshave been investigated using spectral wave data from two gauges near Galveston (on the northern side of the Gulf of Mexico) and NDBC buoy 42035 during Hurricane Ike. Frequently used distributions such as the Rayleigh, the scaled Rayleigh and the 2-parameter Weibull distributionsare compared. The analysis of wave heights suggest…

Modeling of electrohydrodynamic drying process using response surface methodo…

Energy consumption index is one of the most important criteria for judging about new, and emerging drying technologies. One of such novel and promising alternative of drying process is called electrohydrodynamic (EHD) drying. In this work, a solar energy was used to maintain required energy of EHD drying process. Moreover, response surface methodology (RSM) was used to build a predictive model …

Optimization on drying conditions of a solar electrohydrodynamic drying syste…

The purpose of this article was to present a new drying method for agricultural products.Electrohydrodynamic (EHD) has been applied for drying of agricultural materials due to several advantages such as energy saving, low cost equipment,low drying temperatures, and superior material quality. To evaluate this method, an EHD dryer based on solar (photovoltaic) energy was designed and fabricated. …

Antioxidant capacity of hydrolyzed porcine tissues

The antioxidative capacity of seven different porcine tissue hydrolysates (colon,appendix, rectum, pancreas, heart, liver, and lung) were tested by four different assays, including iron chelation, 2,20-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging, 2,2-Diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl (DPPH) radical scavenging, and inhibition of lipid oxidation. All hydro…

Urban inoculation and the decline of smallpox mortality in eighteenthcentury …

Smallpox was probably the single most lethal disease in eighteenth-century Britain but was reduced to a minor cause of death by the mid-nineteenth century due to vaccination programmes post-1798. While the success of vaccination is unquestionable, it remains disputed to what extent the prophylactic precursor of vaccination, inoculation, reduced smallpox mortality in the eighteenth century. Smal…

Decentralization, District Chief Executives,and District Assemblies in Ghana'…

The article shows how District Chief Executives (DCEs) exert extraordinary influenc activities. It further led to conflict and tension between the DCEs, administrators, and Members of Parliament, which proved counterproductive to rural development. Subnational leaders who owe their position to political appointment lack autonomy to pursue grassroots preference. Yet with constitutional reforms t…

Protectiveness of Water Quality Criteria for Copper in Western United States …

Copper (Cu) can impair olfaction in juvenile Pacific salmon (as well as other fishes), thus potentially inhibiting the ability of juveniles to avoid predators or to find food. Because Cu is commonly elevated in stormwater runoff in urban environments, storm events may result in elevated Cu concentrations in salmon-bearing streams. Accordingly, there is concern that existing Cu criteria, which w…

Groundwater biodiversity in Europe

1. The spatial patterns of groundwater biodiversity in Europe remain poorly known, yet their knowledge is essential to understand local variation in groundwater assemblages and to develop sound conservation policies. We explore here the broad-scale distribution of groundwater biodiversity across Europe, focussing on obligate subterranean species. 2. We compiled published distributional data …

Influence of extraction techniques on antioxidant properties and bioactive co…

In this study, the bioactive compounds of loquat fruit (Eriobotrya japonica Lindl.) skin and pulp extracted by two extraction methods (solvent and ultrasound- assisted) with three solvents (ethanol, water and ethanol–water) were compared to supercritical fluid extraction. The antioxidant activities of skin and pulp extracts were evaluated and compared to tertiary butylhydroquinone (TBHQ) usin…

Antioxidative effect of loquat (Eriobotrya japonica Lindl.)fruit skin extract…

The aim of this study was to compare the effects of solvent and ultrasoundassisted extraction methods with supercritical fluid extraction on antioxidant activity of loquat (Eriobotrya japonica Lindl.) fruit skin extract in stability of soybean oil at 25°C. Oxidative stability alterations of soybean oils containing 400 (SEA) and 1000 ppm (SEB) of ethanol extract, 400 (SSA) and 1000 ppm (SSB) o…

Frying stability of sunflower oil blended with jujube (Ziziphus mauritiana La…

The aim of present study was to compare the effects of ultrasound-assisted and microwave-assisted extraction with solvent extraction method on antioxidant activities of jujube (Ziziphus mauritiana Lam.) leaf extracts in stability of sunflower oil during deep frying. The antioxidant activities of the extracts were evaluated by using 2, 2-diphenyl-1-picrylhydrazyl(DPPH˙) radical scavenging and…

pH and Erosive Potential of Commonly Used Oral Moisturizers

Purpose: To measure the pH values of commonly used oral moisturizers and to evaluate their erosive potential using a gravimetric analysis. Materials and Methods: A pH analysis was performed for seven commercially available oralmoisturizers using a calibrated pHmeter. The pH recordingwas repeated three times, from three different bottles each of the same product. The gravimetric analysis was…

Enhancement of ovarian cancer chemotherapy by delivery of multidrug-resistanc…

Aim: The aim of this study was to observe the effect of attenuated Salmonella typhi as a tumor-targeting delivery vector for multidrug-resistance gene (MDR1) small interfering RNA (siRNA). Material and Methods: The cisplatin (DDP)-resistant ovarian cancer cell line SKOV-3/DDPwas established by treatment with gradually increasing concentrations of cisplatin. MDR1 siRNA expression plasmid contai…

Decreased glutathione reductase2 leads to early leaf senescence in Arabidopsis

athione reductase (GR) catalyzes the reduction of glutathione disulfide (GSSG) to reduced glutathione (GSH) and participates in the ascorbate-glutathione cycle, which scavenges H2O2. Here, we report that chloroplastic/mitochondrial GR2 is an important regulator of leaf senescence. Seed development of the homozygous gr2 knockout mutant was blocked at the globular stage. Therefore, to investigate…

Mobilization and Harvesting of Peripheral Blood Stem Cells in Pediatric Patie…

Survival of patients with high-risk pediatric solid tumors has improved with the introduction of a high-dose chemotherapy regimen and autologous stem cell rescue. Here, we present our data regarding the evaluation of the efficacy and safety of hematopoietic stem cell mobilization and harvesting in children with solid tumors. From November 2002 to March 2010, 85 children underwent autologous per…

Towards an optimal sampling strategy to assess groundwater biodiversity: comp…

1. Reliable assessments of groundwater biodiversity are urgently needed to resolve current issues relating to the protection of aquifers. The assessment of groundwater biodiversity is hampered by the physical complexity and difficult access to the subterranean environment, which is related to the vastness, high degree of fragmentation and environmental heterogeneity of groundwater systems. Know…

The bioaccessibility of eicosapentaenoic acid was higher from phospholipid fo…

The bioaccessibility of eicosapentaenoic acid (EPA) in the forms of monoacylglycerol(EPA-MAG), triacylglycerol (EPA-TAG), and phospholipid (EPA-PL) during gastrointestinal passage was compared in this study using a dynamic gastrointestinal model (TIM system). The TIM system simulated the average upper gastrointestinal tract conditions of healthy human adults after intake of a meal (fed state co…

Comprehensive profiling and natural variation of flavonoids in rice

Flavonoids constitute amajor group of plant phenolic compounds. While extensively studied in Arabidopsis, profiling and naturally occurring variation of these compounds in rice (Oryza sativa), themonocotmodel plant, are less reported. Using a collection of rice germplasm, comprehensive profiling and natural variation of flavonoids were presented in this report. Application of a widely targeted …

A process for the development and application of simulation models in applied…

Simulation models are widely used in applied economics to improve understanding of how a system could behave under different conditions. However, the potential degree to which such models can influence decision making depends on their ability to provide an adequate description of the Important elements of a given problem. A systematic and robust procedure for the development and application of …

Modelling transport of inshore and deep-spawned chokka squid (Loligo reynaud…

The South African chokka squid,Loligo reynaudi,spawns both inshore (≤70 m) and on the mid-shelf (71–130 m) of the Eastern Agulhas Bank. The fate ofthese deep-spawned hatchlings and their potentialcontribution to recruitment is as yet unknown.Lagrangian ROMS-IBM (Regional Ocean ModellingSystem-Individual-Based Model) simulations confirm westward transport of inshore and deep-spawn…

GID1 modulates stomatal response submergence tolerance involving abscisic ac…

Plant responses to abiotic stresses are coordinated by arrays of growth and developmental Programs. Gibberellic acid (GA) and abscisic acid (ABA) play critical roles in the developmental programs and environmental responses, respectively,through complex signaling and metabolism networks. However, crosstalk between the two phytohormones in stress responses remains largely unknown. In this study,…

Runup and Rundown characteristics of an emerged seaside perforated quarter ci…

Quarter circle breakwater (QBW) is developed from semicircular breakwater (SBW) and the first model was developed in Peoples Republic of China. The superstructure of QBW consists of a quarter circular front wall facing incident waves, a horizontal base slab and a vertical rear wall placed on rubble mound foundation. A series of experiments were conducted in a two dimensional regular wave flu…

Effect of Artificial Sea Grass on Wave Attenuation- An Experimental Investiga…

An experimental study to validate the exponential attenuation of wave height is presented. Coastal vegetation can often attenuate the wave height as well as the wave energy and are, therefore, of interest. The tests were carried out with submerged artificial sea grass vegetation meadow of 2 m length in a wave flume 50 m long, 0.74 m wide and 1.1 m deep. The model plants were prepared from 0.00…

Design of Submerged Offshore Reefs for the Coastal Protection Measure

Coastline is an interface between the ocean and the land. Coastal erosion is recession of the shoreline and loss of land area due to action of waves, currents and wind. Human interference also contributes to the adverse effects along the coastline, including the erosion. The physical regime of the Indian coastline is characterized by different types of coastal features. In order to mitigate the…

Importance of Location & Alignment of Geotextile Tubes for the Coastal Protec…

The placement of the geotextile tubes plays a functional role in the performance of the overall protection scheme. The placement path of geotextile tubes is the crucial decision for the designers. The geotextile tubes are widely used as a reef structure, well below the Mean Sea Level. The requirement of the beach width is the main criterion to decide crest level of the nearshore reef structure.…

Extreme ionospheric ion energization and electron heating in Alfvén waves in…

We report measurements of energized outflowing/bouncing ionospheric ions and heated electrons in the inner magnetosphere during a geomagnetic storm. The ions arrive in the equatorial plane with pitch angles that increase with energy over a range from tens of eV to>50 keV while the lectrons are field aligned up to ~1 keV. These particle distributions are observed during intervals of broadband lo…

Impact of Interproximal Groove Placement and Remaining Coronal Tooth Structur…

Purpose: This in vitro study investigated the effect of grooves, remaining tooth structure, and their combination on tooth fracture resistance of endodontically treated anterior teeth with cast dowel and cores. Materials and Methods: Sixty extracted maxillary anterior teeth of similar dimensions were endodontically treated and then randomly divided into three groups of 20 teeth each. The teeth…

Flaking process increases the NF-jB inhibition activity and melanoidin extrac…

Research on the health impacts of coffee has escalated. However, few studies were devoted to understanding the potential impact of mechanical processing on coffee’s chemistry and subsequent health implications. Coffee flaking is a commonly used process to improve extractability and aroma characteristics. In this study, we studied the biochemical activity, chemical composition, and microstruct…

Updates on the Construction of an Eyeglass-Supported Nasal Prosthesis Using C…

This study was undertaken to design an updated connection system for an eyeglasssupported nasal prosthesis using rapid prototyping techniques. The substructure was developed with two main endpoints in mind: the connection to the silicone and the connection to the eyeglasses. The mold design was also updated; the mold was composed of various parts, each carefully designed to allow for easy relea…

Shoreline Change Analysis of Mangalore Coast and Morphometric Analysis of Net…

Various developmental projects have come up in the coastal zone of Dakshina Kannada and Udupi districts in the last few decades. A number of beaches are subjected to erosion and lots of coastal properties are destroyed specially during SW monsoon season along the Mangalore coast in recent years. In order to protect the beaches and the properties, a number of seawalls - each ranging in length be…

Estimation of Shallow Water Bathymetry using IRS-Multispectral Imagery of Odi…

Image processing techniques that involve multispectral remotely sensed data are considered very attractive for bathymetry applications as they provide a time cost-effective and efficient solution to water depths estimation. In this paper the potential of 4-bands image acquired by IRS-1C/1D LISS-III Sensor satellite in providing precise depth measurements was investigated by radiative transfer …

Satellite oceanography- A review

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Deskripsi Fisik

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Judul Seri

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No. Panggil

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Iterative Spectral Index Ratio Exploration for Object-based Image Analysis of…

We introduce a new semi-automated approach by coupling spectral index ratios (SIR) and object-based image analysis (OBIA) to classify very high resolution WorldView 2 (WV 2) satellite image to extract land cover features using eCognition© software. This study aims to develop rule sets for object-based classification of WV-2 image to accurately delineate the boundaries of land cover features in…

Wave prediction using neural networks at New Mangalore Port along west coast …

Estimation of wave parameters is of great importance in coastal activities such as design studies for harbour, inshore and offshore structures, coastal erosion, sediment transport and wave energy estimation. Traditional methods like semi empirical formulations and numerical models have disadvantages of excessive data requirement, time consumption and are tedious to carry out.Artificial Intellig…

Seasonal Variation in Textural Characteristics and Sedimentary Environments o…

Seasonal (post- and pre-monsoon) changes in texture and environment of deposition of beach sediments of Karnataka coast have been studied using various statistical parameters (Mean size, Standard deviation, Skewness and Kurtosis). These parameters were obtained for all the sieved sediment samples (68 for each season), using GradistatV8.0 and G-Stat software packages. Based on the range of varia…

Application of Numerical Model in Suspended Sediment Transport Studies along …

The objective of the present study is to understand the sediment transport along the central Kerala coast. The data used in the study include winds, tides, bathymetry and the satellite derived suspended sediment concentrations (SSCs). A sediment transport model - MIKE 21 Mud Transport (MT) - for combinedcurrents, and SSCs is used to quantify and to find out the movement of fine sediments alo…

Numerical Modeling of Nearshore Wave Conditions at Al Huwaisat Island,KSA

generation/transformation model that takes into consideration: wave generation/growth by wind and wave transformation due to:wave shoaling, wave refraction, bottom dissipation, wave blocking , wind generation , wave braking , frequency spreading ,directional spreading , wave-wave interaction ,and wave current interaction. The input data to the model consisted of ships’observation wave and win…

Wave Tranquility and Littoral Studies for Development of a Mini Fishing Harbour

Hydraulic model studies were carried out to optimise a layout of a fishing harbour on the west coast of India, in Kerala. A layout consisting of two breakwaters, 80 m long north breakwater and 670 m south breakwater (150 m normal to the shore and 520 m along the shore) with 100 m wide opening at the harbour entrance was initially proposed. The tranquillity conditions of proposed breakwater alig…

Application of Geophysical and Hydrogeochemical Tracers to investigate Salini…

Groundwater in coastal aquifers of Nagapattinam and Karaikal regions are characterized by large saline variations with Conductivity levels up to (12,430.0 μS/cm). The high salinity collective with deterioration in water level creates a serious threat to current groundwater quality for human consumption. An integrated electrical resistivity and hydrogeochemical investigations were carried out t…

Model and Desk Studies for Feasibility of Sea Route in a Complex Estuary

Development of a Jetty in an estuary with wide tidal flat is quite a challenging job as the approach channel to the deep water is a complicated issue where the disturbance to the natural hydrodynamic behaviour of the sea and the dynamic nature of the sediment movement is to be handled with utmost care. Flat slope causes reduction in velocity and there by formation of mudflats in water way. The …

Determination of fat-soluble vitamins in vegetable oils through microwave-ass…

In this manuscript, a study of the effect of microwave radiation on the high-performance liquid chromatography separation of tocopherols and vitamin K1 was conducted. The novelty of the application was the use of a relatively low polarity mobile phase in which the dielectric heating effect was minimized to evaluate the nonthermal effect of the microwave radiation over the separation process…

Tidal Hydrodynamics along Gulf of Khambhat, West Coast of India

In coastal hydrodynamics, tides play a major role and it is important to understand the complexity of their characteristics along the difficult coastal areas like creeks, estuaries, bays and gulfs for any kind of engineering activities like harbor, jetty, dams and protection measures. In this study, six tidal constituents (K1, M2, N2, O1, P1 and S2) variations along the Gulf of Khambhat,west co…

Study on Saline Water intrusion into the Shallow Coastal Aquifers of Periyar …

Seawater intrusion generally occurs when withdrawal of fresh groundwater from coastal aquifers results in declining groundwater levels, facilitating lateral and/or vertical migration of saline water causing deterioration of groundwater quality. Electrical resistivity sounding techniques and hydrochemical studies are widely used to determine the interaction between groundwater and saline water/s…

Inter-annual variations in wave characteristics off Ratnagiri,Northeast Arabi…

The wave data measured using the Datawell directional wave rider buoy at 13 m water depth off Ratnagiri during 2010 to 2013 is used to study the inter-annual variations in the wave characteristics. The percentage occurrence of waves with significant wave height (Hs) less than 1 m is the same in all 3 years, but the occurrence of high waves (Hs > 1 m) is not same in all the years. The extreme wa…

Influence of Oceanic Features around Inlet on the Thermohaline Variability in…

Thermohaline variability in the Cochin estuary primarily depends on the mixing of fresh water downstream and sea water intrusion upstream. Knowledge of sea water intrusion into the estuary is important for functioning of ecological systems. Therefore this study explored the possibility of monitoring sea water intrusion into the estuary using open ocean thermohaline properties obtained from sate…