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نتیجه جستجو - technology

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1 Data Mining Strategies for Real-Time Control in New York City
استراتژی داده کاوی برای کنترل زمان واقعی در شهر نیویورک-2105
The Data Mining System (DMS) at New York City Department of Transportation (NYCDOT) mainly consists of four database systems for traffic and pedestrian/bicycle volumes, crash data, and signal timing plans as well as the Midtown in Motion (MIM) systems which are used as part of the NYCDOT Intelligent Transportation System (ITS) infrastructure. These database and control systems are operated by different units at NYCDOT as an independent database or operation system. New York City experiences heavy traffic volumes, pedestrians and cyclists in each Central Business District (CBD) area and along key arterial systems. There are consistent and urgent needs in New York City for real-time control to improve mobility and safety for all users of the street networks, and to provide a timely response and management of random incidents. Therefore, it is necessary to develop an integrated DMS for effective real-time control and active transportation management (ATM) in New York City. This paper will present new strategies for New York City suggesting the development of efficient and cost-effective DMS, involving: 1) use of new technology applications such as tablets and smartphone with Global Positioning System (GPS) and wireless communication features for data collection and reduction; 2) interface development among existing database and control systems; and 3) integrated DMS deployment with macroscopic and mesoscopic simulation models in Manhattan. This study paper also suggests a complete data mining process for real-time control with traditional static data, current real timing data from loop detectors, microwave sensors, and video cameras, and new real-time data using the GPS data. GPS data, including using taxi and bus GPS information, and smartphone applications can be obtained in all weather conditions and during anytime of the day. GPS data and smartphone application in NYCDOT DMS is discussed herein as a new concept. © 2014 The Authors. Published by Elsevier B.V. Selection and peer-review under responsibility of Elhadi M. Shakshu Keywords: Data Mining System (DMS), New York City, real-time control, active transportation management (ATM), GPS data
مقاله انگلیسی
2 ساخت مجموعه قالب همبند کارا با حداکثر طول عمر در شبکه های رادیویی شناختی
سال انتشار: 2019 - تعداد صفحات فایل pdf انگلیسی: 7 - تعداد صفحات فایل doc فارسی: 15
مجموعه قالب همبند (CDS)، معرف فناوری طرح ریزی ستون مجازی در شبکه های بی سیم است و نقش مهمی در برنامه های بی سیم مانند پخش برنامه، مسیریابی و غیره دارد. در شبکه های رادیویی شناختی به علت فعالیت های تصادفی کاربران اولیه (PU ها) ، طول عمر و کارایی دو شاخص مهم در اندازه گیری الگوریتم های CDS می باشد. با این حال، بهترین کار در الگوریتم های موجود در ساخت CDS در CRN ها، نادیده گرفتن اثربخشی اجرا در مقابل طول عمر است. در این مقاله، یک الگوریتم توزیع چهار فازی برای به حداکثر رساندن طول عمر CDS با تضمین کارایی الگوریتم ارائه شد. الگوریتم پیشنهادی در زمانبندی O (N3 log N) متوقف می شود که بیشتر از O (N4) موثر است.
کليدواژه: مجموعه قالب همبند | شبکه های رادیویی شناختی | حداکثر طول عمر | الگوریتم توزیع شده
مقاله ترجمه شده
3 Extender osmolality, glycerol and egg yolk on the cryopreservation of epididymal spermatozoa for gamete banking of the Cantabric Chamois (Rupicapra pyrenaica parva)
Extender osmolality, glycerol and egg yolk on the cryopreservation of epididymal spermatozoa for gamete banking of the Cantabric Chamois (Rupicapra pyrenaica parva)-2019
Germplasm banking is a key technology enabling the ex-situ conservation of wild species. However, cryopreservation protocols must be tested to assure the applicability of the banked material. The objective of this study was defining a range of parameters for the composition of a semen extender for Cantabrian chamois epididymal spermatozoa (post-mortem collection). The freezing extender was based in a TES-Tris-fructose buffer, modifying its composition in three experiments: Osmolality of the buffer (320, 380 or 430 mOsm/kg, 8% glycerol, 15% egg yolk), glycerol (4 or 8%, 430 mOsm/kg, 15% egg yolk), egg yolk (10 or 15%, 430 mOsm/kg, 4% glycerol). Sperm was extended at 100 mill. spermatozoa/ml, cooled at 5 ○ C and frozen at —20 ○ C/min. Sperm quality was assessed pre and post-thawing (CASA, HOS test, abnormal forms, cytoplasmic droplets, and viability and acrosomal damage by flow cytometry). Freez- ability was good overall, with total motility of 65.5% ± 2.4 initial and 55.8% ± 2.4 post-thawing. The ex- tenders affected the post-thaw sperm quality marginally. Whereas osmolalities and glycerol concentrations seemed not to differ, 430 mOsm/kg and 4% glycerol might be preferred. Egg yolk con- centrations only differed on sperm velocity (VCL: 84.0 ± 6.7 mm/s in 10% vs. 70.7 ± 6.2 mm/s in 15%, P < 0.05). Our results suggest a good cryotolerance of chamois epididymal spermatozoa, with a preferred extender composition of hyperosmotic buffer, glycerol in the 4% range and lower egg yolk (10% range) than other ruminants.© 2018 Elsevier Inc. All rights reserved.
Keywords : Cantabrian chamois | Cryopreservation | Epididymal spermatozoa | Extender | Osmolality | Glycerol
مقاله انگلیسی
4 Robots, standards and the law: Rivalries between private standards and public policymaking for robot governance
روبات ها ، استانداردها و قانون: رقابت بین استانداردهای خصوصی و سیاست گذاری عمومی برای حاکمیت ربات ها-2019
This article explains the complex intertwinement between public and private regulators in the case of robot technology. Public policymaking ensures broad multi-stakeholder pro- tected scope, but its abstractness often fails in intelligibility and applicability. Private standards, on the contrary, are more concrete and applicable, but most of the times they are voluntary and reflect industry interests. The ‘better regulation’ approach of the EU may increase the use of evidence to inform policy and lawmaking, and the involvement of different stakeholders. Current hard-lawmaking instruments do not appear to take advantage of the knowledge produced by standard-based regulations, virtually wasting their potential benefits. This fact affects the legal certainty with regards to a fast-paced changing environment like robotics. In this paper, we investigate the challenges of overlapping public/private reg- ulatory initiatives that govern robot technologies in general, and in the concrete of healthcare robot technologies. We wonder until what extent robotics should be governed only by standards. We also reflect on how public policymaking could increase their technical understanding of robot technology to devise an applicable and comprehensive framework for this technology. In this respect, we propose different ways to integrate the technical know-how into policymaking (e.g., collecting the data/knowledge generated from the im-pact assessments in shared data repositories, and using it for evidence-based policies) and to strengthen the legitimacy of standards.
Keywords: Standard | Standardization | Lawmaking | Robots | Artificial intelligence | Policy | Human-robot interaction | Private actors | Public regulatory bodies
مقاله انگلیسی
5 Comparison of banking innovation in low-income countries: A meta-frontier approach
مقایسه نوآوری بانکی در کشورهای کم درآمد: یک رویکرد فرامرزی-2019
Financial innovation is a crucial factor behind many of the improvements in the financial sector that directly affect the economy in a positive way. Financial innovation may also alter financial intermediation and increase reliability and transparency. Research has demonstrated that levels of financial innovation are similar among high-income countries; however, research has shown that financial development differs substantially in low income countries regardless of the economic size, suggesting that financial innovation may also differ. This study evaluated the levels of financial innovation and the determinants of innovation within the low-income countries. In particular, a new two-step meta-frontier approach was constructed to estimate technology gap ratios, and a censored model was built to establish their determinants. The results show that low-income countries do in fact vary greatly in terms of financial innovation. Competition, financial inclusion and banking access constitute major determinants of financial innovation.
Keywords: Financial innovation | Technology gap ratio | Cost efficiency | Stochastic meta-frontier analysis | Low-income countries
مقاله انگلیسی
6 Developing a hybrid analytics approach to measure the efficiency of deposit banks
تدوین رویکرد تحلیلی ترکیبی برای سنجش کارایی بانکهای سپرده-2019
This study aims at analyzing the efficiency of deposit banks using contemporary analytics-based decision-making techniques within a fuzzy environment. Specifically, a hybrid analytic model drawing on a fuzzy analytical network process and data envelopment analysis was developed and applied to the assessment of Turkish deposit banks quoted on Borsa Istanbul. The findings revealed that; (i) the efficiency results for banking activity vary for competitiveness and for the adoption of new technologies before and after the financial recession; (ii) the majority of deposit banks operating primarily with non-interest based factors found to be less-efficient; (iii) the ownership and capital structure of banks do not significantly contribute to their banking performance, as they were technically inefficient during the same period; and (iv) the inputs of the banking activities could be reduced while a constant level of output is maintained by adopting and properly using the most efficient technology to boost the technical efficiency
Keywords: Fuzzy analytic network process | Data envelopment analysis | Efficiency | Banking performance | Emerging markets |Borsa Istanbul
مقاله انگلیسی
7 Integration of unified theory of acceptance and use of technology in internet banking adoption setting: Evidence from Pakistan
تجمیع تئوری یکپارچه پذیرش و استفاده از فناوری در زمینه پذیرش بانکداری اینترنتی: شواهدی از پاکستان-2019
The banking sector has evolved in information technology for their internal and external business operations. In effect, user acceptance of internet banking is considered as one of the most fundamental issue in banking sector. In order to identify which factors affect user intention to adopt internet banking, this study develops an amalgamated model based on technology and social psychological literature. The research model was empirically tested using 398 responses from customers of commercial banks. Data was analyzed using structural equation modeling (SEM). The results of this study provided theoretical and empirical support for newly developed integrated model. Importance performance matrix analysis (IPMA) revealed that assurance is the most influential factor among all others to determine users intention to adopt internet banking. These findings provide valuable insight to marketers and managers to understand customer behavior towards adoption of technology, especially in emerging e-payment domain. To the best of our knowledge, this is the first study that investigates internet banking adoption issues with integrated technology model (UTAUT & E-SQ) in South Asia. Finally the study calls for researchers to use current integrated model in other e-commerce domains such as online shopping websites to establish the external validity of the model.
Keywords: Unified theory of acceptance and use of | technology (UTAUT) | E-Service quality (E-SQ) | Internet banking adoption |Integration | Structural equation modeling (SEM)
مقاله انگلیسی
8 A cross-cultural study of the intention to use mobile banking between Lebanese and British consumers: Extending UTAUT2 with security, privacy and trust
یک مطالعه متقابل فرهنگی در مورد استفاده از بانکداری تلفن همراه بین مصرف کنندگان لبنانی و انگلیسی: گسترش UTAUT2 با امنیت ، حفظ حریم خصوصی و اعتماد-2019
This study aims to examine the key factors that may hinder or facilitate the adoption of mobile banking services in a cross-cultural context. A conceptual framework was developed through extending the Unified Theory of Acceptance and Use of Technology UTAUT2 by incorporating three additional constructs, namely trust (TR), security (PS) and privacy (PP). Data were collected using an online survey and a self-administrated questionnaire from 901 mobile banking users who were either Lebanese or English. These were analysed using structural equation modelling based on AMOS 23.0. The results of this analysis indicated that behavioural intention towards adoption of mobile banking services was influenced by habit (HB), perceived security (PS), perceived privacy (PP) and trust (TR) for both the Lebanese and English consumers. In addition, performance expectancy (PE) was a significant predictor in Lebanon but not in England; whereas price value (PV) was significant in England but not in Lebanon. Contrary to our expectation, Social Influence (SI) and Hedonic Motivations (HM) were insignificant for both the Lebanese and English consumers. Overall, the proposed model achieved acceptable fit and explained 78% of the variance for the Lebanese sample and 83% for the English sample – both of which are higher than that of the original UTAUT2. These findings are expected to help policy makers and bank directors understand the issues facing mobile banking adoption in different cultural settings. Subsequently, they will help guide them in formulating appropriate strategies to improve the uptake of mobile banking activities. As the low mobile banking adoption rate in Lebanon can be attributed to the novelty of this technology, the Lebanese banking sector stands to greatly benefit from this study.
Keywords: Mobile banking | Technology adoption | UTAUT | Culture | Developed countries | Developing countries |Structural equation modelling
مقاله انگلیسی
9 Banking technology in a Markov switching economy
فناوری بانکی در اقتصاد سوئیچینگ مارکوف-2019
We take the user cost approach to modeling the financial firm that maximizes capitalized variable profit to investigate whether the monetary transmission mechanism differs in low and high interest rate environments. We use the panel of U.S. commercial banks from 1992 to 2014 to construct the user costs of financial goods and propose a two-step procedure to estimate a regimedependent variable profit function in the normalized quadratic semiflexible functional form. We derive demands for and supplies of financial and non-financial goods and provide evidence consistent with neoclassical microeconomic theory. We find several significant differences in the technology of the financial firm across low and high interest rate regime
Keywords: Commercial banks | Flexible functional forms | Regime switching
مقاله انگلیسی
10 تأمین امنیت اینترنت اشیاء: چالشها، تهدیدات و راهکارها
سال انتشار: 2019 - تعداد صفحات فایل pdf انگلیسی: 30 - تعداد صفحات فایل doc فارسی: 63
چکيده: اينترنت اشيا (IOT) يک جهش تکنولوژيکي بعدي است که باعث بهبود قابل توجهي در جنبه هاي مختلف محيط انسان مانند بهداشت، تجارت و حمل و نقل خواهد شد. با اين حال، با وجود اين واقعيت که ممکن است باعث ايجاد تغييرات اقتصادي و اجتماعي شود، امنيت و حفاظت از حريم خصوصي اشيا و کاربران يک چالش حياتي باقي مي ماند که بايد مورد توجه قرار گيرد. به طور خاص، در حال حاضر، اقدامات امنيتي بايد اقدامات کاربران و اشيا را تحت نظارت و کنترل قرار دهند. با اين حال ماهيت به هم پيوسته و مستقل اشيا علاوه بر قابليت هاي محدود آنها در رابطه با منابع محاسباتي، قابليت کاربرد مکانيزم هاي امنيتي مرسوم را غير ممکن مي سازد. علاوه بر اين، عدم تجانس فن آوري هاي مختلف که اينترنت اشيا را ترکيب مي کند پيچيدگي فرآيندهاي امنيتي را افزايش مي دهد، چرا که هر تکنولوژي با آسيب پذيري هاي مختلف مشخص مي شود. علاوه بر اين، مقادير عظيمي از داده ها که توسط تعاملات چندگانه بين کاربران و اشيا و يا بين اشيا ايجاد مي شود، مديريت آنها و عملکرد سيستم هاي کنترل دسترسي را سخت تر مي کند. در اين زمينه، اين مقاله قصد دارد يک تحليل جامع امنيتي از IoT را با بررسي و ارزيابي تهديدات بالقوه و اقدامات متقابل ارايه دهد. پس از مطالعه و تعيين الزامات امنيتي در زمينه IoT، ما يک آناليز ريسک کمي و کيفي را اجرا کرديم که در حال بررسي تهديدات امنيتي در هر لايه مي باشد. متعاقبا، براساس اين فرآيند ما اقدامات متقابل مناسب و محدوديت هاي آنها را شناسايي کرديم و توجه ويژه اي به پروتکل هاي اينترنت نموديم. در نهايت، دستورالعمل هاي تحقيق براي کار آينده را ارايه مي دهيم.
مقاله ترجمه شده
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