Observations of residual exchange flows at the entrance to four subtropical estuaries, two of them semiarid, indicate that these flows are mainly tidally driven, as they compare favorably with theoretical patterns of tidal residual flows. In every estuary examined, the tidal behavior was that of a standing or near-standing wave, i.e., tidal elevation and tidal currents were nearly in quadrature...

Abstract Tidal-stream energy resource can be predicted deterministically, provided tidal harmonics and turbine-device characteristics are known. Many turbine designs exist, all having different (e.g. rated speed), which creates uncertainty in assessment or renewable system-design decision-making. A standardised normalised tidal-stream power-density curve was parameterised with data from 14 oper...

During a screening program for new agrochemicals from Chinese medicinal herbs, the ethanol extract of Notopterygium incisum rhizomes was found to possess strong nematicidal activity against the two species of nematodes, Bursaphelenchus xylophilus and Meloidogyne incognita. Based on bioactivity-guided fractionation, the four constituents were isolated from the ethanol extract and identified as c...

The current study focuses on the analysis of observed sea level in northern delta coast, which is considered most important region Egypt. used sea-level data are records three tide gauge stations located north delta, Alexandria, Damietta, and Port Said. Different periods had been to be analyzed get astronomical surge heights. Geotide software obtain tidal harmonic constituents. cycle sort at lo...

The classical harmonic analysis (CHA) method only can be used to obtain the constants (amplitude and phase) of ocean tide loading displacement (OTLD). In fact, there are significant seasonal variations in OTLD. A moving (MHA) is proposed, which effectively capture variation OTLD parameters. Based on 5 years kinematic coordinate time series direction U six Global Positioning System (GPS) station...

background: the aim of this study was to prevent of increasing end tidal co2(et co 2) with changing of vital capacity and respiratory rate, when using of birthing filter in infants. materials and method: in a randomized clinical trial study, ninety four infant' patients were studied in three groups . basic values, such as: peak inspiratory pressure, tidal volume, minute ventilation, respiratory...

Present global ocean tide models based on the TOPEX/POSEIDON satellite data are still not accurate enough on the continental shelves for detailed oceanographic studies. The need for increasing accuracy in shelf regions calls for inclusion of more than just semidiurnal and diurnal constituents in future global ocean tide models. This study is an extension to previous investigations on the Northw...

The Highest Astronomical Tide level (HAT) is derived from sea datasets of sufficient length to encapsulate the lunar nodal cycle. HAT based on 35, 90, 180 and 400 days was determined for 14 sites. difference between short 20-year indicate that gave an average 0.22 0.24 m. Increasing decreased 0.06 Sites with diurnal form a larger 0.4 0.9 metres. Inferring shallow water tidal constituents neares...

BACKGROUND Ventilation using low tidal volumes with permission of hypercapnia is recommended to protect the lung in acute respiratory distress syndrome. However, the most lung protective tidal volume in association with hypercapnia is unknown. The aim of this study was to assess the effects of different tidal volumes with associated hypercapnia on lung injury and gas exchange in a model for acu...