Scheduled block time setting and on-time performance of U.S. and Chinese airlines—A comparative analysis

2019 ◽  
Vol 130 ◽  
pp. 825-843 ◽  
Author(s):  
Yanjun Wang ◽  
Ying Zhou ◽  
Mark Hansen ◽  
Christopher Chin
2021 ◽  
Vol 20 ◽  
pp. 170-174
Author(s):  
Piotr Wiertel ◽  
Maria Skublewska-Paszkowska

The paper concerns a comparison of SwiftUI and UIKit frameworks, used in iOS application development. SwiftUI was introduced in 2019 as a successor to UIKit as a main tool for creating application views. The purpose of this article is to compare the time performance of these two frameworks. Six testing applications have been implemented for the research, 2 in each framework. The software was complementary. The defined thesis "SwiftUI is more time efficient for applications with data collection and many filled text fields" was proved.


2021 ◽  
Vol 19 ◽  
pp. 95-99
Author(s):  
Marcin Górski ◽  
Wojciech Andrzej Piwowarski ◽  
Mariusz Dzieńkowski

The article presents a comparative analysis of popular ASP.NET Core MVC and Symfony 4 frameworks. Two web applications, containing the same functionalities and acting as a simple system for managing articles, were implemented in these technologies. The applications underwent time performance tests during typical operations performed by means of a simple form such as entering, editing, viewing and deleting data. These actions were performed automatically using commands from the Puppeteer library. The listed operations were repeated 10, 100 and 1,000 times in order to obtain precise mean times. On the basis of the obtained results, it was difficult to clearly state which of the compared programming tools is better. The ASP.NET Core MVC framework coped much better with two time-consuming operations, i.e. entering and editing data. Its results in this regard (the average from 1,000 repetitions) were respectively approximately 28% and 25% better compared to the Symphony 4 framework. However, for the two less time-consuming operations, i.e. displaying and deleting articles, the Symphony 4 framework proved to be considerably better. Its results with regard to displaying and deleting articles (the average for 1,000 measurements) were respectively 15% and 36% lower compared to the other of the tested frameworks.


2021 ◽  
Vol 20 (5s) ◽  
pp. 1-25
Author(s):  
Stefan Tauner ◽  
Mario Telesklav

Subverting the flow of instructions (e.g., by use of code-reuse attacks) still poses a serious threat to the security of today’s systems. Various control flow integrity (CFI) schemes have been proposed as a powerful technique to detect and mitigate such attacks. In recent years, many hardware-assisted implementations of CFI enforcement based on control flow graphs (CFGs) have been presented by academia. Such approaches check whether control flow transfers follow the intended CFG by limiting the valid target addresses. However, these papers all target different platforms and were evaluated with different sets of benchmark applications, which makes quantitative comparisons hardly possible. For this paper, we have implemented multiple promising CFG-based CFI schemes on a common platform comprising a RISC-V within FPGA. By porting almost 40 benchmark applications to this system we can present a meaningful comparison of the various techniques in terms of run-time performance, hardware utilization, and binary size. In addition, we present an enhanced CFI approach that is inspired by what we consider the best concepts and ideas of previously proposed mechanisms. We have made this approach more practical and feature-complete by tackling some problems largely ignored previously. We show with this fine-grained scheme that CFI can be achieved with even less overheads than previously demonstrated.


2007 ◽  
Vol 177 (4S) ◽  
pp. 398-398
Author(s):  
Luis H. Braga ◽  
Joao L. Pippi Salle ◽  
Sumit Dave ◽  
Sean Skeldon ◽  
Armando J. Lorenzo ◽  
...  
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