Relevant bibliographies by topics / UFREI

Academic literature on the topic 'UFREI'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "UFREI"

1

Prakash, Shiv, and R. S. Jangid. "Seismic response of isolated structures with an improved model of the UFREI." Structures 42 (August 2022): 434–48. http://dx.doi.org/10.1016/j.istruc.2022.06.024.

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Habieb, A. B., A. Formisano, G. Milani, and G. Pianese. "Seismic performance of Unbonded Fiber-Reinforced Elastomeric Isolators (UFREI) made by recycled rubber. Influence of suboptimal crosslinking." Engineering Structures 256 (April 2022): 114038. http://dx.doi.org/10.1016/j.engstruct.2022.114038.

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Li, Xiaoyong, Wenhui Kuang, and Fengyun Sun. "Identifying Urban Flood Regulation Priority Areas in Beijing Based on an Ecosystem Services Approach." Sustainability 12, no. 6 (March 15, 2020): 2297. http://dx.doi.org/10.3390/su12062297.

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Climate change and rapid urbanization have severe impacts on urban flood regulation ecosystem services (UFRES). Quantifying the UFRES has attracted increasing attention for urban sustainable development. However, few studies have focused on how to identify urban flood regulation priority areas. In this study, we simulated urban surface runoff by using the soil conservation services-curve number model, and quantified UFRES supply and demand by using relative indicators (i.e., runoff reduction ratio and urban vulnerability) at the subdistrict scale in Beijing, China. Then, an urban flood regulation priority index was developed by integrating UFRES demand and supply, and further used to identify priority areas. The results show that the mean runoff reduction ratio in Beijing decreased from 38.70% (for a 1-year rainfall return period) to 24.74% (for a 100-year rainfall return period). Subdistricts with low UFRES supply were mainly located in the urban central area and the southeastern zone, while subdistricts with high UFRES demand were mainly located in the urban central region. Meanwhile, places with high priority for flood regulation were mainly located in the inner city, and low priority areas were mainly located in northwestern, southwestern, and northeastern Beijing. Our results also imply that the urban flood regulation priority index is an effective indicator to identify urban flood regulation priority areas. These findings could provide urban planners with a comprehensive understanding of UFRES and scientific guidance to improve them.
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Gerstner, Cynthia L., and Paul W. Webb. "The station-holding performance of the plaice Pleuronectes platessa on artificial substratum ripples." Canadian Journal of Zoology 76, no. 2 (February 1, 1998): 260–68. http://dx.doi.org/10.1139/z97-192.

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The ability to maintain position in a current (station-holding) was determined for the plaicePleuronectes platessa on a simple form of habitat structure, substratum ripples. Twelve sinusoidal combinations of ripple wavelength and amplitude were tested, with wavelengths approximating 0.5, 1, 2, and 5 times fish total length. Although ripple flow patterns varied, all provided regions of retarded flow in the ripple troughs. Therefore, ripples affected station-holding performance in the following three ways: (1) directly, by providing regions of retarded flow, thus creating flow refuges, (2) indirectly, by interfering with behaviors deferring the onset of active swimming, and (3) indirectly, by providing opportunities for new behaviors deferring swimming. The direct effects of retarded flow on performance versus\i indirect effects via swim-deferring behavior were evaluated. Flow retardation was measured as the velocity ratio (utrough/ufree-stream), where utrough is the velocity measured 0.5 cm from the bottom of a trough and ufree-stream is the velocity measured 10 cm above ripple crests. At a velocity ratio >0.4, direct flow-retardation effects were most important in determining observed performance. At a velocity ratio <0.4, indirect interference affected performance. Performance of plaice was maximized on ripples with wavelengths approximately twice their total body length.
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Tayyab, Muhammad, Jiquan Zhang, Muhammad Hussain, Safi Ullah, Xingpeng Liu, Shah Nawaz Khan, Muhammad Aslam Baig, Waqas Hassan, and Bazel Al-Shaibah. "GIS-Based Urban Flood Resilience Assessment Using Urban Flood Resilience Model: A Case Study of Peshawar City, Khyber Pakhtunkhwa, Pakistan." Remote Sensing 13, no. 10 (May 11, 2021): 1864. http://dx.doi.org/10.3390/rs13101864.

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Urban flooding has been an alarming issue in the past around the globe, particularly in South Asia. Pakistan is no exception from this situation where urban floods with associated damages are frequently occurring phenomena. In Pakistan, rapid urbanization is the key factor for urban flooding, which is not taken into account. This study aims to identify flood sensitivity and coping capacity while assessing urban flood resilience and move a step toward the initialization of resilience, specifically for Peshawar city and generally for other cities of Pakistan. To achieve this aim, an attempt has been made to propose an integrated approach named the “urban flood resilience model (UFResi-M),” which is based on geographical information system(GIS), remote sensing (RS), and the theory of analytical hierarchy process (AHP). The UFResi-M incorporates four main factors—urban flood hazard, exposure, susceptibility, and coping capacity into two parts, i.e., sensitivity and coping capacity. The first part consists of three factors—IH, IE, and IS—that represent sensitivity, while the second part represents coping capacity (ICc). All four indicators were weighted through AHP to obtain product value for each indicator. The result showed that in the Westzone of the study area, the northwestern and central parts have very high resilience, whereas the southern and southwestern parts have very low resilience. Similarly, in the East zone of the study area, the northwest and southwest parts have very high resilience, while the northern and western parts have very low resilience. The likelihood of the proposed model was also determined using the receiver operating characteristic (ROC) curve method; the area under the curve acquired for the model was 0.904. The outcomes of these integrated assessments can help in tracking community performance and can provide a tool to decision makers to integrate the resilience aspect into urban flood management, urban development, and urban planning.
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Rezende, Osvaldo M., Francis M. Miranda, Assed N. Haddad, and Marcelo G. Miguez. "A Framework to Evaluate Urban Flood Resilience of Design Alternatives for Flood Defence Considering Future Adverse Scenarios." Water 11, no. 7 (July 17, 2019): 1485. http://dx.doi.org/10.3390/w11071485.

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In urbanized plains that are subject to flooding, the socioeconomic aspects, climate characteristics, built environment, and riverine processes exhibit bi-univocal relationships with the flood formation itself, creating a pattern of development without a predefined equilibrium state. The complexity of processes involved in flood management and the need for a comparative assessment method to hierarchise different design alternatives or planning scenarios requires practical and quantitative methods for urban diagnoses, including flood risk and resilience aspects. This paper proposes an alternative pathway to evaluate design alternatives for urban flood mitigation, assessing resilience in quantitative terms. In this way, a methodological framework is presented with which to evaluate flood resilience in urban watersheds planning, through the application of the Urban Flood Resilience Index (UFRI) and Future Scenarios Criteria (FSC). A case study illustrates the method using an urban watershed in Rio de Janeiro/Brazil. This study considered two possible design alternatives for flood control, with concentrated and distributed measures. The resilience mapping using the UFRI showed that the adoption of distributed measures could increase the areas classified as showing very high resilience by 41%, while very low resilience areas would be reduced by 87%. The FSC is able to present the integrated results of resilience variation from present and future conditions, considering, for example, climate change effects or unplanned urbanisation scenarios. The framework is able to perform comparisons between alternatives, showing the advantages associated with adopting distributed measures over the watershed, which reflected in a resilience value that was 24% higher when compared to the results obtained for the concentrated solutions scenario.
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Krizsán, Zoltán. "A Microfri C keretrendszer átalakítása csoportos fejlesztésre." Multidiszciplináris tudományok 10, no. 4 (2020): 285–91. http://dx.doi.org/10.35925/j.multi.2020.4.32.

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A uFRI a Fuzzy Rule Iinterpolation (FRI) számítási módszereket összefogó C implementáció, amelyet Bartók Roland implementált. A forráskód már több éve készül támogatva a Ph.D. kutatásait. Alapvetően FPGA-ra készült, de egy általános C forrás kód. Elsődleges szempont volt az elméleti kutatások igazolása, komplexitás mérés és beágyazott rendszerekben futtatása, illetve azok oktatása. A későbbiekben szeretnénk több embert is bevonni a fejlesztésbe, szeretnénk, ha kialakulna egy nagyobb felhasználó programozói közösség, ezért az iparban sikeresen alkalmazott sztenderdek segítségével szeretnénk biztosítani a kód minőségét, csapatmunka lehetőségét, ezzel növelve a bizalmat a kód iránt. Ezen cikk a későbbiekben ismertet néhány manapság használt ipari eljárásokat, folyamatokat, eszközöket, valamint a szükséges átalakításokat.
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De Domenico, D., D. Losanno, and N. Vaiana. "Experimental tests and numerical modeling of full-scale unbonded fiber reinforced elastomeric isolators (UFREIs) under bidirectional excitation." Engineering Structures 274 (January 2023): 115118. http://dx.doi.org/10.1016/j.engstruct.2022.115118.

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García Arias, Xosé Lluis. "Dos poemes poco conocíos." Lletres Asturianes, no. 123 (October 20, 2020): 167–74. http://dx.doi.org/10.17811/llaa.123.2020.167-174.

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Ufiertamos dos poemes (ún del sieglu XVII, otru del XIX) qu’amuesen un testimoniu llingüísticu dixebráu del usu de la llingua asturiana en dos sieglos averaos. Nel casu primeru un poema fechu n’Asturies en castellán apaez llingüísticamente entremecíu con rasgos de tipu portugués y asturianu. Nel segundu conséñase un poema de 1843, cuasimente desconocíu del públicu llector; vien n’asturianu dafechu y ufre un tipu de llingua bien iguáu, con un modelu de tipu norteño-oriental lo qu’enllaza con otres manifestaciones lliteraries que tamién algamaren la imprentación naquella dómina. Entenderáse asina que la lliteratura asturiana cola recoyida de materiales escritos de los sieglos medios y modernos, perpoco conocíos en llinies xenerales, podrá encontar l’oxetivu de collaborar a una edición allargada en materiales que vayan más allá y lloñe de los yá conocíos pola Historia de la Lliteratura Asturiana asoleyada pola Academia de la Llingua Asturiana en 2002. Les coleiciones de recuperación de testos qu’esta institución académica vien asoleyando con procuru, de magar la so nacencia, paecen ufrir un camín afayadizu qu’empobina a meyor conocer un idioma que tien una tradición escrita continuada más estimable que lo que de mano abultaría aguardase. Pallabres clave: llingua asturiana, lliteratura asturiana, historia de la lliteratura asturiana.
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10

BATT, R. G., M. P. PETACH, S. A. PEABODY, and R. R. BATT. "Boundary layer entrainment of sand-sized particles at high speed." Journal of Fluid Mechanics 392 (August 10, 1999): 335–60. http://dx.doi.org/10.1017/s0022112099005510.

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An experimental study of entrainment of sand-sized particles in turbulent boundary layers has been performed in a high-speed wind tunnel at square-pulse flow speeds of 27 to 101 ms−1 and for soil bed lengths varying from 2.1 to 5.8 m. Because of high particle drag-to-weight ratios (D/W = 100–1000) and friction velocities (uf) well above soil threshold friction velocities (uft; 10 [les ] uf/uft [les ] 40), the present results correspond to the suspension regime of dust lofting, in contrast to low-speed saltation flows (1 [les ] uf/uft [les ] 5; D/W / 15). Results are obtained characterizing particle entrainment for both a natural soil (White Sands Missile Range (WSMR) sand; 50% finer-by-weight diameter, D50 = 180 μm) and a monosized sand sample (Ottawa sand, D50 = 250 μm). Measurements of local boundary layer velocities and dust densities were performed with traversing state-of-the-art diagnostics. Scouring rate data (0.015 [les ] ms [les ] 0.30 g cm−2 s−1) and streamwise soil flux (10 [les ] Q [les ] 150 g cm−1 s−1) as a function of bed length and velocity were determined.Scouring rates were found to increase as the 3/2-power of velocity, but decay as the inverse square root of dust bed length. Corresponding streamwise soil fluxes (also known as soil loss rates) increased to the 3/2-power of velocity in contrast to the cube power dependence for low-speed results (ufree-stream [les ] 15 m s−1; Q [les ] 1.5 g cm−1 s−1). Comparison of scouring rate data (from pre/post-test soil loss measurements) with derived data based on the rate of change of streamwise flux with distance was favourable. WSMR rates were always lower than Ottawa sand rates, a result consistent with the lower repose angle for the Ottawa sand sample.Both sets of soil data demonstrate that dust edges extend vertically to higher elevations than corresponding velocity edges. This result implies that the turbulent Schmidt number for the present flows is less than unity and of the order of 0.7. Favourable collapsing of the scouring rate data base was achieved when measured rates were normalized by the friction velocity mass flux, square root of edge Mach number and sand repose angle ratio. A universal rate of 0.3±0.1 correlated well with the bulk of the data.
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Conference papers on the topic "UFREI"

1

Pianese, Gaetano, Davide Torrini, Gabriele Milani, and Antonio Formisano. "INFLUENCE OF CROSSLINKING ON THE SEISMIC PERFORMANCE OF UNBONDED FIBER REINFORCED ELASTOMERIC ISOLATORS (UFREI) MADE OF REGENERATED RUBBER." In 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research National Technical University of Athens, 2021. http://dx.doi.org/10.7712/120121.8500.19320.

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Pianese, G., G. Milani, and A. Formisano. "Unbonded Fiber Reinforced Elastomeric Isolators (UFREIs) made of high damping natural rubber blends." In 15th World Congress on Computational Mechanics (WCCM-XV) and 8th Asian Pacific Congress on Computational Mechanics (APCOM-VIII). CIMNE, 2022. http://dx.doi.org/10.23967/wccm-apcom.2022.125.

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Haque, Riddho Ridwanul, Chowdhury Farhan Ahmed, Md Samiullah, and Carson K. Leung. "UFreS: A New Technique for Discovering Frequent Subgraph Patterns in Uncertain Graph Databases." In 2021 IEEE International Conference on Big Knowledge (ICBK). IEEE, 2021. http://dx.doi.org/10.1109/ickg52313.2021.00042.

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