Stopped Doob inequality for p-th moment, 0

Shaking table test for assessing the seismic performance of semi-anchored steel water tanks

A set of some predictable fuzzy stochastic processes is a complete metric space for some metric. A set of some square integrable fuzzy martingales is a complete metric space for some metric and the set of all almost surely continuous square integrable martingales is its closed subset.

After introducing cylindrical Gaussian random variables and Hilbert space valued Gaussian random variables, we define cylindrical Wiener process and Hilbert space valued Wiener process in a natural way. We develop the Itô stochastic integral with respect to cylindrical and Hilbert space valued Wiener processes simultaneously as they share many common features. Our construction of the Itô integral is consistent with the construction of a stochastic integral with respect to square integrable martingales, however, regarding measurability, we assume only that the integrand is adapted, following the classical ideas as presented by Liptser and Shiryayev (Statistics of Stochastic Processes. Nauka, ) and by Øksendal (Stochastic Differential Equations. Springer, New York, ). We provide detailed proofs of properties of the Itô integral and follow with the Martingale Representation Theorem. Our unified approach to stochastic integration with respect to cylindrical and Hilbert space valued Wiener processes allowed us to present the Stochastic Fubini Theorem and the Itô Formula in both cases in an almost identical way.

Dynamic assessment is a procedure in which development is simultaneously assessed and improved with regard to the individual's or group's Zone of Proximal Development (ZPD; Lantolf & Poehner, 2004). This study aimed to follow dynamic assessment and investigate the impact of three types of implicit and explicit feedback on the essay writing of English language learners. The participants of the study (N = 32) were male students at the Bachelor of Science level at Sharif University of Technology and Amirkabir University of Technology. The analysis of the data showed that the learners had different ZPDs regarding noticing and developing writing skills and strategies, and performed much better on writing in posttest than pretest. Findings of this study suggested that (a) dynamic assessment of writing had a positive effect on improving internalization of writing content and organization skills and strategies of L2 learners, (b) the internalization of skills and strategies appeared hierarchically, and (c) teachers' mediation in the form of explicit feedback was the most effective hint within the dynamic assessment procedures.

The cultural, political, and pedagogical history of an elite Iranian engineering institution in the years directly preceding the 1979 Iranian revolution. In 1966, the Shah of Iran established Aryamehr University of Technology (AMUT), now known as Sharif University of Technology, as part of a larger campaign to modernize the nation. In 1979, AMUT engineering students played a critical role in the revolution that overthrew the Shah and his regime. In Revolutionary Engineers, Sepehr Vakil, Mahdi Ganjavi, and Mina Khanlarzadeh show how Western notions of scientific and technical rigor combined in unexpected ways with Iranian and Islamic values at AMUT in the years directly preceding the 1979 Iranian revolution. They also argue that global perspectives, particularly from the Global South, can deepen and complicate contemporary discussions on ethics, epistemology, and knowledge production in STEM fields. The authors present the cultural, political, and pedagogical history of AMUT, from its 1966 establishment up to its pivotal role in the 1979 revolution, while delving into the complex interplay of global, national, and Islamic values in STEM education. In the past several years, STEM education scholars have challenged the epistemological and ontological foundations of STEM education research and practice, while deepening the field's engagement with questions of power, ethics, race, and justice. The case of AMUT presents the opportunity to contribute a Global South perspective to studies of the civic, cultural, and political functions and foundations of science and engineering education. Sharif University continues to be at the epicenter of politics in Iran.

Despite great differences in economic conditions and resource availability, social structures, cultural settings and historical backgrounds, Higher Education systems in most countries face similar challenges: maintaining research capacity, combining elite with mass Higher Education, offering lifelong education and providing society with a space for the development and maintenance of critical knowledge, independent thinking, social identity and values. This fact becomes more relevant during recessionary times and has gained the attention of academics, governments and policy-makers around the world. Particularly, these efforts have been encouraged because entrepreneurial universities become important catalysts for regional, economic and social development (Guerrero and Urbano, 2011; Kirby et al., 2011). The existing literature on entrepreneurial universities provides insights about the entrepreneurial transformation process of universities in developed countries (e.g., the United States by O’Shea et al., 2005, 2007; and Link and Scott, 2005; and Europe by Clark, 1998; Klofsten and Jones-Evans, 2000; Kirby, 2006; Wright et al., 2007; Grimaldi, et al., 2011; and Guerrero and Urbano, 2011, 2012) and current efforts to explore it in developing countries (e.g., Iran by Sooreh et al., 2011; Farsi et al., 2012). The studies evidenced that usually in developing countries the first measures implemented to fostering entrepreneurship within universities are entrepreneurship educational programmes. The main explanation is the positive relationship between entrepreneurship education and entrepreneurial activity (Coduras et al., 2008). However, the low prevalence rate of formal and informal entrepreneurship education in developing countries (i.e., Uruguay, Latvia, Peru, Chile, Iran, Argentina and Mexico) clearly evidenced the need of other support measures for entrepreneurs starting business within universities (Coduras et al., 2010). Therefore, in developing countries, the literature on entrepreneurial universities is somewhat limited or, more accurately, rare (Etzkowitz and Mello, 2004).Based on these previous arguments, our purpose is to contribute to a better understanding of the entrepreneurial transformation process of entrepreneurial universities in developing countries. To accomplish this objective, theoretically we adopted an integral entrepreneurial university framework that considers: (1) the relevance of universities’ environmental and internal factors to fulfill their teaching, research and entrepreneurial activities (Guerrero and Urbano, 2011, 2012) and (2) the socioeconomic impacts generated by these activities (Urbano and Guerrero, 2013). To accomplish this objective, we focus on Iran, which is a lower-middle-income economy and one of the most important countries in the Middle East region (World Bank, 2009). Methodologically, we explore case studies of two universities located in Tehran: University of Tehran (UT) and Sharif University of Technology (SUT). Following this introduction, this study comprises four main sections: the entrepreneurial universities framework, the multiple case study design, the experience of Iranian entrepreneurial universities, and conclusions.

Let be a standard d-dimensional Brownian motion and L a smooth functional on the space C = Cd[0, 1] of continuous functions from [0,1] to Rd, such that Denote Thenis a square integrable martingale which can be represented as a stochastic integral; consequently the random variable has the representationFor Fréchet differentiable functions L, Clark(1) gave the following formula for the integrand e:

The International Conference on Developing Synergies Between Islam, Science, & Technology held on 1-2 October, 2014 at the International Institute of Advanced Islamic Studies (IAIS) in Kuala Lumpur, featured 40 speakers across diverse fields detailing issues revolving around Islamic discourse and its relationship with science and technology in the world today. The conference was graced by former Malaysian Prime Minister and Chairman of IAIS, YABhg Tun Abdullah Bin Haji Ahmad Badawi, who provided a motivating Opening Address. Many of the speakers – some veterans to the conversation, such as Emeritus Professor Datuk Osman Bakar (Director and Chair SOASCIS, Brunei Darussalam) and Professor Mehdi Golshani (Sharif University of Technology, Iran) – offered several valuable solutions drawing extensively from their educational and activist backgrounds in the fields of environment, education, and policy reform.

This study aimed to assess the attitudes and perceptions of English-as-a-Foreign-Language (EFL) students towards the use of computer-assisted language learning (CALL) programmes and their perceived view on an online writing system that was developed in the present study by means of a questionnaire, as well as an asynchronous discussion forum. An online writing system was developed and a sample of 30 EFL learners studying at Sharif University of Technology in Iran were assigned to the study. The CALL attitudes of the participants were assessed by a CALL questionnaire, which indicated that Iranian students attached a high value to CALL. Moreover, the comments of the participants that were posted on a discussion forum were analysed with the aid of Henri’s framework, which revealed the presence of certain concepts and themes within the views of learners towards the use of computers in their educational settings. Keywords: Computer-assisted instruction (CAI), computer-assisted language learning (CALL), EFL writing, student attitudes.

The present contribution reports practical deployment outcomes of an enhanced Distributed Model Predictive Control (DMPC) approach featuring diminished computational burden and superior steady-state accuracy compared to conventional Jacobi-based iterative algorithms for large-scale building thermal management. The developed methodology establishes optimal operational set points for Fan Coil Units (FCUs) alongside centralized boiler and chiller installations, thereby accomplishing thermal regulation objectives while simultaneously reducing overall building energy expenditure. Implementation is realized through resolution of constrained distributed optimization formulations executed by locally deployed intelligent thermostatic devices specifically engineered for this application. Experimental validation occurs at Sharif University of Technology’s (SUT) Department of Electrical Engineering (EE) facility, encompassing eight stories across 6,700 square meters containing 111 individual spaces. Results confirm the modified algorithmic variant delivers performance metrics equivalent to (or better than) standard methodologies while achieving substantial computational efficiency gains. The investigated structure incorporates 116 networked smart thermostats implementing the proposed modified algorithm. Comprehensive performance verification through numerical simulations and field implementation demonstrates the technique’s efficacy for large-scale building management systems, evidencing zero steady-state deviation and optimized energy utilization patterns.

How parts of speech are learned? A lexical-driven or a structure-driven model

In the conceptual design phase of a turbocharger, where emphasis is mainly on parametric studies, before manufacturing and tests, a generalized and robust model that implies over a wide range properly, is unavoidable. The critical inputs such as compressor maps are not available during the conceptual design phase. Hence, generalized compressor models use alternate methods that work without any supplementary tests and can operate on wide range. One of the common and applicable modeling methods in design process is the ‘Dimensionless Modeling’ using the constant coefficient scaling (CCS). This method almost can predict the compressor characteristics at design point. However, at off design conditions, error goes up as mass flow and speed parameters increase. Therefore, the results are not reliable at these points. In this paper, a variable coefficient scaling (VCS) method is described. Then, a centrifugal compressor is modeled using the VCS method. To evaluate the model and compare it with the experimental results, some supplementary experiments are performed. Experimental studies are carried out on the compressor of a S2B model of the Schwitzer turbocharger in the turbocharger Lab., at Sharif University of Technology. The comparison between the experimental results and those obtained by the VCS method indicates a good agreement. It also suggests that the present model can be used as an effective design tool for all operating conditions.

This study aimed to discover whether an online writing system has any effect on Iranians’ EFL academic writing performance. The study also sought to find out whether the proficiency level of learners influenced the effect of the system on academic writing. To meet this end, an online writing system was developed and 68 undergraduate students of the General English language course studying at Sharif University of Technology were requested to participate in this study. First, their English language proficiency was measured by a language proficiency test that included 80 questions of one of the latest versions of the official TOEFL iBT test, which was provided by the Educational Testing Service (ETS). Then, over an eight-week period, the participants were assigned to write eight versions of academic writing that followed a genre-based teaching approach through computer-based instructions. The writing scores were statistically analyzed and the results revealed that providing students with computer-assisted instruction (CAI) led to significant improvements in their academic writing performance. Moreover, according to the findings of this study, the learners’ level of proficiency did influence the effect of the system.

The outcome of a long-term programme on the computer-aided design of castings, carried out at Sharif University of Technology, has been the development of computer simulation software known as SUTCAST. This is currently employed in 16 local foundries. The program is based on a numerical method involving a classical approach to an explicit three-dimensional heat-transfer finite difference method. The software has been designed for the solidification simulation of pure metals, and eutectic and long-freezing-range alloys. It has been written for IBM personal computers and compatibles in the Turbo C version 2.01 programming language.This paper discusses the computer solidification simulation of an Al—12%Si casting poured in a sand mould and the heat- transfer coefficient at the metal—mould interface. A mathematical model for the estimation of the gap width at the metal—mould interface during solidification based on the plane strain thermoelasticity equations is suggested.The solidification process for Al—12%Si contained with a sand mould was monitored by measuring temperature at different locations within the casting and the sand mould. An experimental procedure was employed to measure the displacement of the metal and mould walls during solidification. The width of the gap was measured as the difference between the location of the casting and the inner surfaces of the mould, which varies with time.The computer results are compared with the experimental data and are shown to be in good agreement as regards to cooling curves, solidification time and gap size.

Retraction notice to “Dynamic analysis of geometrically nonlinear and electrostatically actuated micro-beams” [Commun Nonlinear Sci Numer Simulat 14 (4) (2009) 1627–1645