Relevant bibliographies by topics / Crenulate Shaped Bay Method

Academic literature on the topic 'Crenulate Shaped Bay Method'

Author: Grafiati
Published: 10 December 2022
Last updated: 19 February 2023

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Journal articles on the topic "Crenulate Shaped Bay Method"

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Wang, Zhi-Qian, Soon-Keat Tan, Nian-Sheng Cheng, and Keng-Wee Goh. "A simple relationship for crenulate-shaped bay in static equilibrium." Coastal Engineering 55, no. 1 (January 2008): 73–78. http://dx.doi.org/10.1016/j.coastaleng.2007.07.004.

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Tao, Hung-Cheng, Tai-Wen Hsu, and Chia-Ming Fan. "Developments of Dynamic Shoreline Planform of Crenulate-Shaped Bay by a Novel Evolution Formulation." Water 14, no. 21 (November 2, 2022): 3504. http://dx.doi.org/10.3390/w14213504.

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In this paper, a simple evolution formulation, based on polar coordinate, is proposed to efficiently and accurately simulate the dynamic movement of sandy shoreline in a crenulate-shaped bay. The consistent actions by seasonal waves and swell usually result in severe erosion or deposition along sandy shoreline, so some mathematical formulations and numerical models, based on the concept of headland control, have been recently proposed to forecast and protect the shoreline planform. A simple and general formulation is derived in this study by considering the balance of longshore sediment transport, since the accurate prediction of dynamic movements of high planform-curvature shoreline in the shadow zone behind a headland is essential and critical to the headland control. The proposed formulation can be directly adopted to accurately and simply simulate the temporal variations of shoreline in both of the hooked zone, where is protected by a headland, and the unhooked zone, where is straight attacked by incident waves. Numerical results and comparisons of temporal variation of shoreline between two headlands are provided in this paper to demonstrate the accuracy and efficiency of the proposed evolution formulation. Besides, different time increments and different numbers of control volume are adopted to examine the merits of the proposed numerical model.
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Prihapsara, Fea. "Optimization and Antioxidant Activity Test Of SMEDDS Bay Leaf with Palm Kernell Oil as Oil Phase." JPSCR : Journal of Pharmaceutical Science and Clinical Research 2, no. 02 (October 6, 2017): 102. http://dx.doi.org/10.20961/jpscr.v2i02.14390.

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<em>One of the plants which can produce antioxidants is the bay leaves (Syzygium polyanthum (Wight) Walp). Generally, extract have big size molecule and low solubility. To overcome low solubility of extract, it was formulated into self microemulsifying drug delivery system (SMEDDS) using oil Palm Kernel Oil (PKO) as a carrier oil. This research, aims to produce mikrometer-sized emulsion and thus can be used at low dose in SMEDDS mikroemulsion preparation. And this research was conducted to determine the antioxidant activity of SMEDDS bay leaf extract. Palm kernell oil is used because its suitable for SMEDDS and has medium chain trigliseride that can Increase drug transport through lymphatics thereby reducing first pass metabolism. Optimization of surfactant, cosurfactant and oil phase was determined with trial and error method. The results showed that the optimum SMEDDS formula was tween 80 : PEG 400 : Palm Kernell Oil (1,6 : 2,4 : 1) in 5 mL. SMEDDS extract of bay leaves had emulsification time 13.93 seconds, average of droplet size was 218,9 nm and polidisperse index 0,203. Morphological observation showed the mikroemulsion particles had spherical shaped. SMEDDS product of bay leaf extract has powerful antioxidant potential, the value of IC<sub>50</sub> is 40,7177 ppm. </em>
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Prasad, Avinesh, Bibhya Sharma, and Jito Vanualailai. "A solution to the motion planning and control problem of a car-like robot via a single-layer perceptron." Robotica 32, no. 6 (December 13, 2013): 935–52. http://dx.doi.org/10.1017/s0263574713000982.

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SUMMARYThis paper tackles the problem of motion planning and control of a car-like robot in an obstacle-ridden workspace. A kinematic model of the vehicle, governed by a homogeneous system of first-order differential equations, is used. A solution to the multi-tasking problem of target convergence, obstacle avoidance, and posture control is then proposed. The approach of solving the problem is two-fold. Firstly, a novel velocity algorithm is proposed to drive the car-like robot from its initial position to the target position. Secondly, a single layer artificial neural network is trained to avoid disc-shaped obstacles and provide corresponding weights, which are then used to develop a function for the steering angles. Thus, our method does not need a priori knowledge of the environment except for the goal position. With the help of the Direct Method of Lyapunov, it is shown that the proposed forms of the velocity and steering angle ensure point stability. For posture stability, we model the two parallel boundaries of a row-structured parking bay as continua of disk-shaped obstacles. Thus, our method is extendable to ensuring posture stability, which gives the desired final orientation. Computer simulations of the generated path are presented to illustrate the effectiveness of the method.
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Şahin, Şakir, and Jülide Parlak. "The Determination of Subduction Geometry under the Aegean-Anatolian Plate along Aegean and Cyprean Arcs in the Eastern Mediterranean." International Journal of Advanced Engineering and Management Research 07, no. 04 (2022): 80–104. http://dx.doi.org/10.51505/ijaemr.2022.7407.

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The southwestern Anatolia is part of the Aegean extensional province, located in a seismically active convergent zone between the African and Eurasian Plates in the Eastern Mediterranean. This region is one of the most active and swiftly deforming domains of the Alpine–Himalayan mountain belt in Turkey. The plate boundary is shaped by the subduction of the African Plate under the Aegean-Anatolian plate consists of the Aegean and Cyprean arcs. The two separate slabs occurred along the plate border related to these arcs. These subducted slabs are separated by a gap beneath Western Anatolia. These arcs intersect in the eastern Mediterranean region and form the tectonic structures, north cusps, the Isparta Angle depending on the subduction. The Isparta Angle caused by the slab is located to the North of Antalya Bay as reverse V shaped. In this study, 3D seismic tomography method was applied to determine the subduction geometry of slabs along the Aegean and Cyprean arcs in the Eastern Mediterranean region. The 3- Dtomographic results obtained by using the arrival times data collected 39,059 earthquakes have revealed concrete results about subduction zones. P wave velocity structure has been compared with the tectonic structures. The tomographic results show that two separate slabs occurred along Aegean and Cyprean arcs. The tear zone between these two slabs is the Fethiye Burdur Fault Zone (FBFZ) and the Astenospheric upwelling occurs in the Fethiye Bay and continues northward from there. It has been determined that there are two slabs dipping to the northeast under the Antalya Bay and to the north under the Gökova Gulf. Based on the tomographic results, it has been determined that the subduction in these region continues to the depth of ~ 100 km. The subducted African lithosphere plays important role in the evolution of southwest Anatolian tectonic structures.
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Zhou, Qian, Meng Shi, Qi Huang, and Tao Shi. "Do Double-Edged Swords Cut Both Ways? The Role of Technology Innovation and Resource Consumption in Environmental Regulation and Economic Performance." International Journal of Environmental Research and Public Health 18, no. 24 (December 13, 2021): 13152. http://dx.doi.org/10.3390/ijerph182413152.

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The Guangdong–Hong Kong–Macao Greater Bay Area (GBA) is one of the significant regions with the strongest economic vitality in China. This study focuses on environmental regulation in the eleven Greater Bay Area cities to explore the relationship between it and economic performance for the period 2000–2016. In doing so, we employ spatial panel models (including the spatial instrumental variable method) to investigate the nonlinear relationship between economic growth and environmental regulation. We confirm the existence of a U-shaped relationship between economic growth and environmental regulation in the Greater Bay Area. In the first half of the inverted U shape, the higher the economic development level, the stronger the environmental regulation strength; however, the latter begins to decrease after the peak point. The doubled-edged sword does not cut both ways. This paper verifies that technology innovation and resource consumption are two important mechanisms. Further, we find that both economic growth and environmental regulation have negative spatial externalities; innovation has a positive impact on the environmental regulation of the local city as well as surrounding cities, while resource consumption is on the contrary. In conclusion, this paper provides policy recommendations to further promote economic growth and environmental technologies, and to enhance energy efficiency in GBA.
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Liu, Mengdi, Xiaobin Yin, Qing Xu, Yuxiang Chen, and Bowen Wang. "Monitoring of Fine-Scale Warm Drain-Off Water from Nuclear Power Stations in the Daya Bay Based on Landsat 8 Data." Remote Sensing 12, no. 4 (February 13, 2020): 627. http://dx.doi.org/10.3390/rs12040627.

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Monitoring the drain-off water from nuclear power stations by high-resolution remote sensing satellites is of great significance for ensuring the safe operation of nuclear power stations and monitoring environmental changes. In order to select the optimal algorithm for Landsat 8 Thermal Infrared Sensor (TIRS) data to monitor warm drain-off water from the Daya Bay Nuclear Power Station (DNPS) and the Ling Ao Nuclear Power Station (LNPS) located on the southern coast of China, this study applies the edge detection method to remove stripes and produces estimates of four Sea Surface Temperature (SST) inversion methods, the Radiation Transfer Equation Method (RTM), the Single Channel algorithm (SC), the Mono Window algorithm (MW) and the Split Window algorithm (SW), using the buoy and Minimum Orbit Intersection Distances (MOIDS) SST data. Among the four algorithms, the SST from the SW algorithm is the most consistent with the buoy, the MODIS SST, the ERA-Interim and the Optimum Interpolation Sea Surface Temperature (OISST). Based on the SST retrieved from the SW algorithm, the tidal currents calculated by the Finite-Volume Coastal Ocean Model (FVCOM) and winds from ERA-Interim, the distribution of the warm drain-off from the two nuclear power stations is analyzed. First, warm drain-off water is mainly distributed in a fan-shaped area from the two nuclear power stations to the center of the Daya Bay. The SST of the warm drain-off is about 1–4 °C higher than the surrounding water and exceeds 6 °C at the drain-off outfall. Second, the tide determines the shape and distribution characteristics of the warm drain-off area. The warm drain-off water flows to the northeast during the flood tide. During the ebb tide, the warm drain-off water flows toward the southwest direction as the tide flows toward the bay mouth, forming a fan-shaped area. Moreover, the temperature increase intensity in the combined discharge channel during the flood tide is lower than that during the ebb tide, and the low temperature rising area during the flood tide is smaller than that during the ebb tide.
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Wang, Chenfei, Yuehui Chen, Meili Zhou, and Fangjian Chen. "Control of Early-Age Cracking in Super-Long Mass Concrete Structures." Sustainability 14, no. 7 (March 23, 2022): 3809. http://dx.doi.org/10.3390/su14073809.

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The early-age cracking problem in concrete has long been recognised by civil engineers and scientists because it can jeopardise the intended serviceability of concrete structures. However, the effects of various crack control methods are different. This paper carried out field monitoring on a super-long wall with different crack control measures and compared the temperature and strain development process of the wall. In the middle of the super-long wall, the pipe cooling method reduced the hydration heat of concrete by 13 °C via a vertical pipe arrangement, but the wall could reach the maximum tensile strain earlier than with the other methods. By embedding an I-shaped steel plate in the induced joint method, a structurally stiff mutation zone was generated, and the maximum strain was generated at the induced seam web. By calculating and setting a reasonable construction length, the alternative bay construction method reduced the internal tensile strain of the structure. The early-age cracking of super-long mass concrete structures is affected more by restrained shrinkage than by temperature, so it is difficult to control early-age cracking by addressing only one factor.
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Uno, Yoshihumi, and Ryusuke Satto. "Bone Resorption in Human Cholesteatoma: Morphological Study with Scanning Electron Microscopy." Annals of Otology, Rhinology & Laryngology 104, no. 6 (June 1995): 463–68. http://dx.doi.org/10.1177/000348949510400609.

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The detailed mechanism of bone resorption in cholesteatoma was investigated by means of eroded ossicles obtained during middle ear surgery for cholesteatoma. In the light microscopic study, multinucleate osteoclasts with ruffled borders were found in contact with the eroded bone, which appeared to be osteoclastic lacunae. Scanning electron microscopy revealed the lacunae to be many absorption bays, 30 to 100 μm in diameter, clustered on the surface of eroded areas. Numerous cone-shaped stubs of digested collagen fiber bundles, consisting of scores of collagen fibrils and degenerated extracellular organic substances, were visible at higher magnification on the bottom of the absorption bay. The pattern of fusion and twining of the disarranged collagen fibrils at the top of the partly digested fiber bundles was clearly rendered by the alkali-water maceration method for scanning electron microscopy. We infer from the morphological evidence that osteoclastic resorption may be one of the major mechanisms of bone destruction in cholesteatoma, and that demineralization and degeneration of extracellular organic substances precede disruption of collagen fibrils at the front of bone resorption.
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10

Sui, J. L., and C. Y. Kao. "Roles of Ca2+ and Na+ in the inward current and action potentials of guinea pig ureteral myocytes." American Journal of Physiology-Cell Physiology 272, no. 2 (February 1, 1997): C535—C542. http://dx.doi.org/10.1152/ajpcell.1997.272.2.c535.

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Physiological roles of Ca2+ vs. Na+ in membrane currents and action potentials of ureteral myocytes were investigated on freshly dissociated guinea pig ureteral myocytes with the patch-clamp method. The myocytes are spindle shaped, with cell volume of 2,473 microm3, surface area of 2,014 microm2, capacitance of 48.2 pF, resting potential of -47.9 mV, and membrane conductance of 840 pS. The membrane current consists of a slow inward Ca2+ current (ICa) conducted by L-type Ca2+ channels and an actively fluctuating Ca2+-activated K+ current [IK(Ca)] conducted by Ca2+-activated maxi-K+ channels. ICa dominates the membrane current by being long lasting and more active at less depolarized potentials than IK(Ca) and by regulating IK(Ca). Ca2+-free media, Co2+, and nifedipine reduce or block ICa, whereas high extracellular Ca2+ concentration and BAY K 8644 enhance it. Action potential amplitudes and plateaus are regulated correspondingly. Related changes are also seen in IK(Ca) In contrast, no fast inward current attributable to Na+ was found. Replacing extracellular Na+ with tris(hydroxymethyl)aminomethane had no apparent effects on the inward or outward current or on the action potentials.
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Dissertations / Theses on the topic "Crenulate Shaped Bay Method"

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(12804992), Scott Keane. "Evaluation of macro-tidal shoreline change by implementation of Crenulate Shaped Bay Theory: A numerical approach." Thesis, 1995. https://figshare.com/articles/thesis/Evaluation_of_macro-tidal_shoreline_change_by_implementation_of_Crenulate_Shaped_Bay_Theory_A_numerical_approach/20010851.

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The coastline is influenced by wave action and is vulnerable to change in shape due to erosion or accretion. These changes occur largely as a result of longshore transport.


To predict such shoreline change there exist several different approaches, among which is the Crenulate Shaped Bay Method, researched by a team lead by Silvester, and sometimes known as Silvesters' method. In the frame of this project, after a short review of other approaches, this method was given deeper analysis.


From the analysis undertaken and the knowledge gained, several numerical models have been developed by the author, namely INTANG, NUMANG and EXISTP, to allow the Crenulate Shaped Bay Method to be applied to various Macro -Tidal beach conditions. Great detail has been undertaken in the development of the model INTANG which provides the user with a tool which interacts with the AutoCad environment.

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Conference papers on the topic "Crenulate Shaped Bay Method"

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Rasmeemasmuang, Thamnoon, and Sutat Weesakul. "61. ONE-LINE MODEL USING THE COMBINATION OF POLAR AND CARTESIAN COORDINATES FOR CRENULATE SHAPED BAY." In Coastal Dynamics 2009 - Impacts of Human Activities on Dynamic Coastal Processes. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814282475_0063.

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He, K., and W. D. Zhu. "Damage Detection of Space Frame Structures With L-Shaped Beams and Bolted Joints Using Changes in Natural Frequencies." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48982.

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It is difficult to use conventional non-destructive testing methods to detect damage, such as loosening of bolted connections, in a space frame structure due to the complexity of the structure and the nature of the possible damage. A vibration-based method that uses changes in the natural frequencies of a structure to detect the locations and extent of damage in it has the advantage of being able to detect various types of damage in the structure, including loosening of bolted connections. Since the vibration-based method is model-based, applying it to a space frame structure with L-shaped beams and bolted joints will face challenges ranging from the development of an accurate dynamic model of the structure to that of a robust damage detection algorithm for a severely under-determined, nonlinear least-square problem under the effects of relatively large modeling error and measurement noise. With the development of the modeling techniques for fillets in thin-walled beams (He and Zhu, 2009, “Modeling of Fillets in Thin-Walled Beams Using Shell/Plate and Beam Finite Elements,” ASME J. Vibr. Acoust., 131(5), p. 051002) and bolted joints (He and Zhu, “Finite Element Modeling of Structures with L-shaped Beams and Bolted Joints,” ASME J. Vibr. Acoust., p. 011010) by the authors, accurate physics-based models of space frame structures can be developed with a reasonable model size. A new damage detection algorithm that uses a trust-region search strategy combined with a logistic function transformation is developed to improve the robustness of the vibration-based damage detection method. The new algorithm can ensure global convergence of the iterations and minimize the effects of modeling error and measurement noise. The damage detection method developed is experimentally validated on an aluminum three-bay space frame structure with L-shaped beams and bolted joints. Three types of introduced damage, including joint damage, member damage, and boundary damage, were successfully detected. In the numerical simulation where there are no modeling error and measurrement noise, the almost exact locations and extent of damage can be detected.
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