با سلام خدمت کاربران در صورتی که با خطای سیستم پرداخت بانکی مواجه شدید از طریق کارت به کارت (6037997535328901 بانک ملی ناصر خنجری ) مقاله خود را دریافت کنید (تا مشکل رفع گردد).
ردیف | عنوان | نوع |
---|---|---|
1 |
A real-time tennis level evaluation and strokes classification system based on the Internet of Things
یک سیستم ارزیابی سطح تنیس در زمان واقعی و طبقه بندی ضربه ها بر اساس اینترنت اشیا-2022 In this study a single wearable inertial measurement unit (IMU) and machine learning method-
ologies were used to conduct player level evaluation and classification five prototype tennis
strokes in real-time. The International Tennis Number (ITN) test was used to verify the accuracy
of this IoT system in evaluating participant level. We conducted the ITN test on thirty-six par-
ticipants and conducted one-way ANOVA on the ITN test results using IBM SPSS 26. The IMU in
this study contained a tri-axis accelerometer (± 16 g) and tri-axis gyroscope (± 2000◦ /s) worn on
the participants’ wrist connected to a wireless low-energy Bluetooth smart-phone with data sent
to the computer terminal by cloud storage. Data processing including preprocessing, segmenta-
tion, feature extraction, dimensionality reduction and classification using Support Vector Ma-
chines (SVM), K-nearest neighbor (K-NN) and Naive Bayes (NB) algorithms. One-way ANOVA
analysis predicting participants’ ITN level and ITN field test scores yielded p < 0.001 at the three
different skill levels tested. SVM (MinMax), SVM (Standardiser) and SVM (MaxAbsScaler) clas-
sified unique tennis strokes precision and recall factors at the three different skill levels reliably
yielded in f1-scores above 0.90 for serve, forehand and backhand, with f1-scores for forehand and
backhand volley scores falling below that. The results of this study suggest using a single six-axial
50 Hz IMU in combination with SVM and SVM + PCA represents a significant step towards a more
reliable wearable tennis stroke performance and skill level real-time evaluation and feedback
technology. keywords: اینترنت اشیا | جمع آوری داده ها | پردازش داده ها | یادگیری ماشین | اپلیکیشن موبایل | تنیس | سنسورهای پوشیدنی | ارتباطات بی سیم | Internet of Things | Data collection | Data processing | Machine learning | Mobile application | Tennis | Wearable sensors | Wireless communication |
مقاله انگلیسی |
2 |
Cyber Physical Systems: Analyses, challenges and possible solutions
سیستم های فیزیکی سایبری: تحلیل ها، چالش ها و راه حل های ممکن-2022 It is becoming more difficult to protect the authentication of our data in todays world of smart living. On the one
hand, we are able to live in smart homes and smart cities with ease. Even if we use the most complicated
passwords, we cant be sure that the Internet of Things and the Internet of Everything are safe. One way to make
sure people and things are safe is to use Multi-Factor Authentication. Also, a big and complicated system needs
more efficient and robust solutions for real, and strong, security, so this is important. There are a lot of smart ways
to solve problems today. For this reason, the internet of things is being used in every possible field or application.
This new ecosystem, which is called Cyber Physical Systems, was built by IoTs. Cyber-Physical Systems use
computing, communication, and control to make new technology or the next generation of engineered systems. In
the last decade, there has been a lot of work done on cyber physical systems that we didnt expect. There have
been a lot of threats, challenges, and important issues in the last decade. We have a big problem with the security
of CPS because the basic blocks used to make them are very different. Even if were talking about natural gas
systems or transportation systems or other automated systems, they all have something to do with CPS, no matter
what. These days, CPSs systems are used for energy, transportation, the environment, and health care, among
other things. This article talks about a number of problems that need to be solved by researchers and scientists
(working related to respective area, i.e., CPS). As a result, this article also talks about a partial survey of important
research issues, and an overview of several research projects that have been done in the last decade by a number
of different people to improve CPS.
keywords: سیستم های فیزیکی-سایبری | اینترنت اشیا | اینترنت همه چیز | چالش ها | امنیت و حریم خصوصی | Cyber-physical systems | Internet of things | Internet of everything | Challenges | Security, and privacy |
مقاله انگلیسی |
3 |
A study related to product service systems (PSS), SERVQUAL and knowledge management system (KMS) – A review
مطالعه مربوط به سیستم های خدمات محصول (PSS)، SERVQUAL و سیستم مدیریت دانش (KMS) - یک مرور-2021 PSS is a growing field of research in industry practice in today’s global economy. It is a new trend that has
an impact on both the production and consumption of resources. PSS aims at a more profitable and conservational usage of products. While in the past providing services was one of the strategies attained to
differentiate in competition, however today providing a product together with many services has become
a standard practice in the product industry. To remain competitive, manufacturers are forced not only to
produce a competitive product however rather a superior PSS.PSS are outlined as life cycle bound combinations of a product and completely different services, having sophisticated networks, that comprise a
manufacturer as a provider and also as a repair partner. To enable the applicability of a PSS in an industry,
it is essential to evaluate the system using metrics – the SERVQUAL MODEL, which defines ‘‘The quality as
the difference between the customers’ expectations & perceptions concerning the services delivered to
them” [1]. It is catered to measure quality by capturing the expectancy – confirmation paradigm which
suggests the consumer’s perceived quality of how well a given service delivery meets their expectations
of that delivery. So this SERVQUAL metric is used to determine the level of quality in the industry and the
five dimensions are such as tangibility, reliability, responsiveness, assurance & empathy are measured
using a five-point Likert scale. Since, organizations are more and more moving towards knowledgebased strategies, developing and managing knowledge is essential for improving the organizational performance as well as for enhancing decision-making process. This paper presents a review on the use of a
knowledge management practice in PSS for industries to store, share and utilize knowledge for enhancing
creativity & innovation in their service systems. An efficient review of the literature has been conducted
in the academic and scientific databases taking into account the date of publication of the articles titled
PSS, SERVQUAL and KMS from 2009 to 2020. To achieve the review process, all selected articles have been
categorized by publication year, the objectives of the research, the methodology used, the results, conclusion and future scope of their research are presented on a broader scale [16]. Therefore, this paper presents an overview of the literature on PSS and the evaluation methods using SERVQUAL MODEL and the
role of knowledge management in PSS and the appropriate ideas for conducting research in the future.
Copyright 2021 Elsevier Ltd. All rights reserved.
keywords: سیستم خدمات محصول | مدل SERVQUAL | سیستم مدیریت دانش | تصمیم گیری | Product service system | SERVQUAL MODEL | Knowledge management system | Decision-making |
مقاله انگلیسی |
4 |
Trapped in the supply chain? Digital servitization strategies and power relations in the case of an industrial technology supplier
در زنجیره تأمین گرفتار شده اید؟ استراتژیهای سرویس دهی دیجیتال و روابط قدرت در مورد یک تامین کننده فناوری صنعتی-2021 Digital servitization transforms value creation processes and subsequently affects relationships and power structures in supply chains. Yet, previous studies present insightful but incomplete views on how digital servitization changes power balances between supply chain actors. Specifically, little attention has been paid to upstream firms, although they are particularly vulnerable to becoming disadvantaged participants in a digitally servitized supply chain, as they are positioned far away from end-users. Addressing this research need, we performed an explorative single case study of an industrial supplier – using the resource dependence theory as theoretical framework – to investigate (1) the effects of digital servitization on the power balance between the supplier and its OEM customers and (2) the strategic responses of the supplier to these effects. We find that for an industrial supplier, the successful deployment of digitalized product-service systems (DPSS) depends not only on the development of digital capabilities, but also on the ability to establish close end-user connections, continuous access to product usage data, and a trustful relationship with OEM customers. In addition, we show that digital servitization shifts power towards the actor who is more dominant prior to its advent, refining the common notion that digital servitization favors per se downstream firms. We enrich existing literature by outlining five specific strategies that industrial suppliers can pursue to maintain critical resource access and regain power in a digitally servitized supply chain. Finally, we offer managers guidance in establishing DPSS offerings by providing a comprehensive picture of the industrial supplier’s digital servitization journey. Keywords: Digital servitization | Power structure | Supply chain relationships | Resource dependence theory | Case study research |
مقاله انگلیسی |
5 |
Knowledge of Acute Stroke Management Among Healthcare Professionals: Development and Validation of Acute Stroke Management Questionnaire (ASMaQ)
دانش مدیریت سکته حاد در میان متخصصان مراقبت های بهداشتی: تدوین و اعتبار سنجی پرسشنامه مدیریت سکته مغزی حاد (ASMaQ)-2021 Background: Around 15.0% of all strokes occurred in hospitalised patients and studies showed significant delay in the stroke recognition and lack of awareness on
thrombolytic therapy for acute ischaemic stroke (AIS) which lead to higher mortality for in-hospital stroke. We aimed to develop and validate a new instrument
known as acute stroke management questionnaire (ASMaQ) to evaluate the awareness of healthcare professionals in managing acute ischaemic stroke cases.
Methods: This study consisted of 3 steps; the formulation of ASMaQ draft, content
validation and construct validity. A total of 110 questions were drafted with 5-point
Likert scale answers. From the list, 31 were selected and subsequently tested on 158
participants. The results were analysed and validated using exploratory factor analysis on SPSS. Components were extracted and questions with low factor loading
were removed. The internal consistency was then measured with Cronbach’s alpha.
Results: Following analysis, 3 components were extracted and named as general
stroke knowledge, hyperacute stroke care and advanced stroke management. Two
items were deleted leaving 29 out of 31 questions for the final validated ASMaQ.
Internal consistency showed high reliability with Cronbach’s alpha of 0.82. Our
respondents scored a total cumulative mean of 113.62 marks or 66.6%. A sub analysis by occupation showed that medical assistants scored the lowest in the group
with a score of 57% whilst specialists including neurologists scored the highest at
79.4%. Conclusion: The ASMaQ is a newly developed and validated questionnaire
consisting of 29 questions testing the respondents’ acute stroke management
knowledge.
KeyWords: Validation | Acute stroke management | Stroke | In-hospital stroke |
مقاله انگلیسی |
6 |
Optimal planning of distributed photovoltaic generation for the traction power supply system of high-speed railway
برنامه ریزی بهینه از تولید فتوولتائیک توزیع شده برای سیستم منبع تغذیه کششی راه آهن با سرعت بالا-2020 The ever-increasing electricity price and energy consumption in high-speed railway industry push
railway companies to seek a promising way to realize their sustainable developments. Making full use of
the solar resource along with high-speed railways can be a potential solution to cut the electricity bill,
bring more profit to railway companies and realize the decarbonization of high-speed railway industry.
This paper studies the optimal planning of distributed photovoltaic generation (DPVG) and energy
storage system (ESS) for the traction power supply system (TPSS) of high-speed railway. A quantitative
method is proposed to study the time and space characteristics of photovoltaic generation and electricity
demand of high-speed trains. An integrated cost-benefit analysis framework is developed to evaluate the
effect of DPVG and ESS on the economy of TPSS. To derive the optimal planning scheme and energy
management strategy of DPVG and ESS, a mathematical programming model with the objective of
minimizing the total cost is proposed to seek the most economical solution. A hybrid global optimal
solution approach is developed to solve the model. A real-world case of Beijing-Baoding high-speed
railway in China is used to illustrate the capability and characteristics of the proposed model. The
computational results show that DPVG is able to supply 32:5% electricity demand of high-speed trains.
The integration of DPVG and ESS can help railway company save 4.2 million CNY each year in Beijing-
Baoding high-speed railway. This paper demonstrates the potential and applicability of DPVG and ESS
in high-speed railway industry. Keywords: High-speed railway | Photovoltaic generation | Energy storage system | Traction power supply system |
مقاله انگلیسی |
7 |
Remanufacturing with upgrade PSS for new sustainable business models
تولید مجدد با PSS ارتقا یافته برای مدل های جدید تجاری پایدار-2020 Starting from mid ‘90s, Eco-efficient Product Service Systems (PSSs) were indicated in literature as enablers toward a more sustainable and resource-efficient industry through re-use and remanufacturing. In this regard, academicians and practitioners outlined several advantages (environmental and economic) but also many barriers hindering their implementation, such as market acceptance and economic sustainability. Thus, the diffusion of re-use and remanufacturing PSS is currently limited and mainly restricted to markets accepting also out-dated products (e.g. B2B or emerging countries). To cope with this limitation, product upgrade in re-manufacturing was recently introduced. Upgrade cycles allow embedding technological innovation into products while remanufacturing, thus reaching advanced performances and satisfying evolving customers’ preferences over time. If coupled with the offering of advanced services, remanufacturing with upgrade would open the way to new disruptive PSSs able to revolution customers’ consumption behaviour, as well as the manufacturing business model of companies. The new remanufacturing with upgrade business models will make remanufacturing one of the main pillars of companies’ business value generation, allowing improved management of technology cycles and of products obsolescence. Thus, overall economic and environmental benefits will be maximised. However, the implementation of such business models represents a challenge for manufacturers. The evolution from a pure manufacturing towards a manufacturing/remanufacturing company, together with the transition from a product to a service-based offering, entails considerable changes in all the business model variables. Drawing on the theory of business model innovation process, incremental or radical innovation paths can be hypothesised for this transition. Despite the focus of recent research on Product Service Systems and on Circular Economy, remanufacturing-with-upgrade business models are rarely cited in literature and there is limited empirical evidence of companies having embraced them. To set the research framework in alignment with previous theory, this paper proposes a structured definition and configuration of innovative remanufacturing-with-upgrade business models. By looking at existing examples of companies having undertaken this type of business model innovation, different typologies of remanufacturing and upgrade business models are proposed. Companies were classified according to the identified PSS typologies and conclusions are derived, together with future research perspectives.© 2018 CIRP. Keywords: Re-manufacturing | Upgrade | Sustainable Product Service Systems | Business model | Circular economy |
مقاله انگلیسی |
8 |
چه چیزی یک معلم زبان خارجی (EFL) موثر میسازد: ادراکات دانش آموزان دبیرستانی
سال انتشار: 2020 - تعداد صفحات فایل pdf انگلیسی: 16 - تعداد صفحات فایل doc فارسی: 16 هدف این مقاله توصیف ویژگیهای معلم زبان خارجی (EFL) موثر است که توسط دانش آموزان دبیرستانی کورد درک شده است. شرکت کنندگان شامل ۱۲۲ دانشآموز سال سوم دبیرستان در شهر دوهوک در منطقه کردستان عراق بودند. دادهها با استفاده از پرسشنامه براساس طبقهبندی پارک و لی (۲۰۰۶) از ویژگیهای معلمان EFL شامل سه بخش دانش موضوعی، دانش آموزشی و مهارتهای اجتماعی - عاطفی جمعآوری شد. دادهها به صورت کمی با استفاده از نرمافزار آماری SPSS (نسخه ۲۵) تجزیه و تحلیل شدند. نتایج نشان داد که دانشجویان اهمیت بیشتری در مهارت زبان انگلیسی قائل هستند. علاوه بر این، هم مردان و هم زنان کمترین میانگین نمرات را در فرهنگ انگلیسی داشتند. با این حال، هیچ تفاوت قابل توجهی نه بین پسران و دختران و نه بین دانش آموزان با دستیابی بالا و دستیابی پایین یافت نشد. یافتهها نشان داد که خوب خواندن زبان انگلیسی، مدیریت کلاس درس به درستی و اعتماد به نفس و داشتن کنترل شخصی بالاترین میانگین نمره را داشتند.
کلمات کلیدی: ویژگیهای معلمان زبان خارجی (EFL) موثر | باورهای دانش آموزان |
مقاله ترجمه شده |
9 |
The synergy between human factors and risk attitudes of Malaysian contractors’: Moderating effect of government policy
هم افزایی بین عوامل انسانی و نگرش ریسک از پیمانکاران مالزی: اثر تعدیل کننده سیاست دولت-2020 Many critical factors influence the effectiveness of risk management. There is unanimity among project and risk
practitioners about the most significant factor responsible for risk management: “human factors”. As human
attitude is always reflected in behaviour, there is a high possibility that a contractors behaviour will be by the
attitude. Therefore, this study aims to identify the factors affecting contractors risk attitudes and then determine
the relationship with government policy. A total of 100 copies of questionnaire were randomly distributed to the
construction companies in Kuantan Malaysia. Out of the 100 copies of the questionnaire distributed, 69 copies
were received indicating 72.6% response rate. Thirteen (13) copies of the questionnaire were found to be
unusable due to missing data or errors in the responses to all the questions. Thus, 56 copies of the questionnaire,
indicating 58.9% response rate, were usable. Moreover, with quantitative research design following the positivist
research paradigm, the methodology was designed to focus on the research questions and the objectives.
Organizational Control Theory was used to develop the theoretical framework that investigated G-7 contractors
in the Kuantan Pahang, Malaysian construction companies. SPSS 20.0 & SmartPLS 3 for structural equation
modelling was utilized in testing the hypotheses developed for the study. Government policy moderates the
relationships between the internal factors and contractors risk attitudes among the construction companies
operating in Kuantan, Malaysia. This implies that the findings of the study provides more understanding of the
personal factors that affect contractors risk attitudes to facilitate contractors decision-making process. It also
serves as a useful reference for further studies in the field of construction project management. Keywords: Contractors risk attitude | Risk attitude | Organizational control theory | Government policies | Personal factors | PLS-SEM |
مقاله انگلیسی |
10 |
چه چیزی یک معلم زبان خارجی (EFL) موثر میسازد: ادراکات دانش آموزان دبیرستانی
سال انتشار: 2020 - تعداد صفحات فایل pdf انگلیسی: 16 - تعداد صفحات فایل doc فارسی: 19 هدف این مقاله توصیف ویژگیهای معلم زبان خارجی (EFL) موثر است که توسط دانش آموزان دبیرستانی کورد درک شده است. شرکت کنندگان شامل ۱۲۲ دانشآموز سال سوم دبیرستان در شهر دوهوک در منطقه کردستان عراق بودند. دادهها با استفاده از پرسشنامه براساس طبقهبندی پارک و لی (۲۰۰۶) از ویژگیهای معلمان EFL شامل سه بخش دانش موضوعی، دانش آموزشی و مهارتهای اجتماعی - عاطفی جمعآوری شد. دادهها به صورت کمی با استفاده از نرمافزار آماری SPSS (نسخه ۲۵) تجزیه و تحلیل شدند. نتایج نشان داد که دانشجویان اهمیت بیشتری در مهارت زبان انگلیسی قائل هستند. علاوه بر این، هم مردان و هم زنان کمترین میانگین نمرات را در فرهنگ انگلیسی داشتند. با این حال، هیچ تفاوت قابل توجهی نه بین پسران و دختران و نه بین دانش آموزان با دستیابی بالا و دستیابی پایین یافت نشد. یافتهها نشان داد که خوب خواندن زبان انگلیسی، مدیریت کلاس درس به درستی و اعتماد به نفس و داشتن کنترل شخصی بالاترین میانگین نمره را داشتند.
کلمات کلیدی: ویژگیهای معلمان زبان خارجی (EFL) موثر | باورهای دانش آموزان |
مقاله ترجمه شده |