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Author(s):  
Arpit Saxena

Abstract: Whenever we would like to visit a brand new place in delhi -NCR, we often search for the most effective restaurant or the most cost effective restaurant, but of decent quality. For looking of our greatest restaurants we frequently goes for various websites and apps to induce an overall idea of restaurants service. the foremost important criteria for all this is often rating and reviews of the those that have already got experience in these restaurants. People see for rating and compare these restaurants with one another and choose for his or her best. We restrict our data only to Delhi-NCR. This Zomato dataset provides us with enough information in order that one can decide which restaurants is suitable at which place and what kind of food they must serve so as get maximum profit. it's 9552 rows and 22 columns during this dataset. We'd wish to find the most affordable restaurant in Delhi-NCR.We can discuss various relationships between various columns of information sets like between rating and cuisine type , locality and cuisine etc. Since it's a true time data we might start first with data cleaning like cleaning spaces , garbage texts etc , then data exploratory like handling the None values, null values, dropping duplicates and other Transformations then randomization of dataset so analysis. Our target variable is that the "Aggregate Rating" column. We explore the link of the opposite features within the dataset with relevancy Rates. we'll the visualize the relation of all the opposite depend features with relevance our target variable, and hence find the foremost correlated features which effects our target variable. Keywords: Online food delivery, Marketing mix strategies, Competitive analysis, Pre-processing, Data Cleaning, Data Mining, Exploratory data analysis , Classification , Pandas , MatPlotLib.


2021 ◽  
Vol 21 (5) ◽  
pp. 391-398
Author(s):  
Hayoung Hong ◽  
Hongsoo Park ◽  
Kanghyeok Lee ◽  
Wonwoo Lee ◽  
Semin Jo ◽  
...  

A retrodirective beamforming system (BFS) based on a Rotman lens is proposed for far-field wireless power transfer at Ka-band. The true-time-delay property of the Rotman lens allows for a wideband operation covering 28–38 GHz. The designed BFS comprises a Rotman lens with nine beam ports connected to a nine-element linear Vivaldi array. The proposed BFS is implemented using PCB technology for ease of manufacturing and low-cost processing. The simulated and measured results demonstrate that the proposed BFS can generate nine discrete beams over a scan range of ±45° with a wide impedance bandwidth.


Religions ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1059
Author(s):  
David Kennedy ◽  
Sandra Cullen

A key challenge for educational provision in the Republic of Ireland has been the need to develop appropriate approaches to religious education that are effective in terms of meeting the needs and rights of students in a democratic pluralistic society. At the centre of such discussions, although rarely explicitly recognised, is an attempt to grapple with the question of truth in the context of religious education. This paper argues that religious education, in attempting to engage with this evolving context, is challenged in two trajectories: (a) by approaches that operate from the presumption that objective truth exists and (b) by approaches that are sceptical of any claim to objective truth. It will be argued that proposals, such as those offered by active pluralists, to deal with religious truth claims in religious education are limited in terms of their capacity to adequately treat such claims and the demands that these carry for adherents. This paper argues for a hermeneutical treatment of the context for Catholic religious education in the Republic of Ireland, which is considered under the following headings: (1) irruptions from the periphery, (2) the theological matrix, (3) the status of religion, and (4) the position of students and teachers in religious education classes. From this it will be suggested that promoting religious education as a hermeneutic activity allows for a respectful engagement with competing truth claims.


2021 ◽  
Author(s):  
Laurens Bogaert ◽  
Igor Lima de Paula ◽  
Olivier Caytan ◽  
Joris Van Kerrebrouck ◽  
Muhammad Muneeb ◽  
...  

2021 ◽  
Author(s):  
Lucas Thione Rodrigues Saraiva ◽  
Maria Victoria Africano ◽  
Ricardo Luiz da Silva Adriano ◽  
Andrea Chiuchiarelli

Author(s):  
Edward H. Field ◽  
Kevin R. Milner ◽  
Nicolas Luco

ABSTRACT We use the Third Uniform California Earthquake Rupture Forecast (UCERF3) epidemic-type aftershock sequence (ETAS) model (UCERF3-ETAS) to evaluate the effects of declustering and Poisson assumptions on seismic hazard estimates. Although declustering is necessary to infer the long-term spatial distribution of earthquake rates, the question is whether it is also necessary to honor the Poisson assumption in classic probabilistic seismic hazard assessment. We use 500,000 yr, M ≥ 2.5 synthetic catalogs to address this question, for which UCERF3-ETAS exhibits realistic spatiotemporal clustering effects (e.g., aftershocks). We find that Gardner and Knopoff (1974) declustering, used in the U.S. Geological Survey seismic hazard models, lowers 2% in 50 yr and risk-targeted ground-motion hazard metrics by about 4% on average (compared with the full time-dependent [TD] model), with the reduction being 5% at 40% in 50 yr ground motions. Keeping all earthquakes and treating them as a Poisson process increases these same hazard metrics by about 3%–12%, on average, due to the removal of relatively quiet time periods in the full TD model. In the interest of model simplification, bias minimization, and consideration of the probabilities of multiple exceedances, we agree with others (Marzocchi and Taroni, 2014) that we are better off keeping aftershocks and treating them as a Poisson process rather than removing them from hazard consideration via declustering. Honoring the true time dependence, however, will likely be important for other hazard and risk metrics, and this study further exemplifies how this can now be evaluated more extensively.


2021 ◽  
Author(s):  
David Moss

Abstract We demonstrate significantly improved performance of a microwave true time delay line based on an integrated optical frequency comb source. The broadband micro-comb (over 100 nm wide) features a record low free spectral range of 49GHz, resulting in an unprecedented record high channel number (81 over the C band) – the highest number of channels for an integrated comb source used for microwave signal processing. We theoretically analyze the performance of a phased array antenna and show that this large channel count results in a high angular resolution and wide beam steering tunable range. This demonstrates the feasibility of our approach as a competitive solution towards implementing integrated photonic true time delays in radar and communications systems.


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