162 research outputs found
Analytical model for arbitrarily configured neighboring shallow geothermal installations in the presence of groundwater flow
No full textThis paper introduces an analytical model analyzing the effect of groundwater flow on heat transfer in an infinite conductive-convective porous domain representing shallow geothermal systems with arbitrarily configured cylindrical heat sources. The model is formulated based on the moving source concept and solved based on the spectral analysis method and the superposition principle. Compared to models based on the Green's function and the Laplace transform, the proposed spectral model has a simpler formulation, computationally efficient and easy to implement in computer codes. It can handle random time-dependent thermal loads and any arbitrarily configured grid distribution. The verification and numerical examples demonstrate the computational capabilities of the model, and show how the groundwater flow can play an important role in the thermal interaction between heat sources. They also feature how to make use of the direction of groundwater flow to avoid undesirable thermal interaction between neighboring installations, rapid depletion of energy sources and unfair mining of geothermal energy.Applied MechanicsReservoir Engineerin
Parameter identification algorithm for ground source heat pump systems
No full textThis paper presents a new parameter identification (PI) algorithm for estimating effective and detailed thermal parameters of ground source heat pump systems using data obtained from the well-known thermal response test. The PI comprises an iterative scheme coupling a semi-analytical forward model to an inverse model. The forward model is formulated based on the spectral element method to simulate transient 3D heat flow in ground source heat pump (GSHP) systems, and the inverse model is formulated based on the interior-point optimization method to minimize the system objective function. Compared to existing interpretation tools for the thermal response test, the proposed PI algorithm has several advanced features, including: it can handle fluctuating heat pump power and inlet temperatures; interpret data obtained from multiple heat injection or extraction signals; produce accurate backcalculation for short and long duration experiments; and handle multilayer systems. The PI algorithm is tested against synthesized data, using a wide range of random noise, and versus an available laboratory experiment. The computational results show that the PI algorithm is accurate, stable and exhibiting relatively high convergence rate.Applied Mechanic
Fieldwork Guidelines for Archaeology Officers
No full textThe identities of nations and countries depend on the culture, history, beliefs, faith and
religion of the people of those countries. Therefore, in order to express the identity and
personality of human beings and countries, we must go to history and historians, culture and
cultural figures, and knowledge and scholars of the relevant countries and people.
Therefore, to understand and document the history and culture of the country in systematic
way, these Guidelines for Archaeological Officers has been prepared so to undertake the
archaeological activities according to international standards. This book will highlight the legal
aspects of archaeological work in Afghanistan, archaeological survey, planning, budgeting,
restoration, conservation, protection of the excavated areas, drafting reports, and
documentation related issues. The author focused on the practical and systematic vision of
archaeological activities as the recent development in agricultural work, urban development
and illegal digging of the sites immensely destroyed the country rich archaeological heritage.
In these pages Dr. Luca M. Olivieri shares with young archaeological officers his experience in
survey, excavation, documentation, site protection, budgeting and legal frameworks. Based
on some best practice examples, this book plans to offer pragmatic assistance to readers, thus
encouraging them to focus on the various practical aspects of a scientific archaeological
fieldwork.
Dr. Anna Filigenzi, Dr. Massimo Vidale and Mrs. Livia Alberti contributed on very important
aspects of the manual. Mr. Ahmadzia Nawrang, Mr. Salim Wak and Mr. Fidah Mohammad
assisted in text correction and translation of Pashto and Dari languages. I sincerely appreciate
the efforts of all my colleagues from AIA who assisted in composing, designing and compiling
it in book form and I pray for more success.
I hope that with the publication of this valuable and extraordinary book, a service has been
made to the scientific and cultural community of the country. I am sure that the Archaeological
officers, students, professors and researchers in the field of archeology in Afghanistan will
definitely benefit from this book.
Noor Agha Noori
Director
Archaeology Institute of Afghanistan (AIA)
Kabul, December 202
New Product Development in Virtual Environment
No full textPurpose - The literature on the topic has evolved exponentially since eight years ago. Relaying on a review of studies published in recent years, this article proposes and discusses a framework which incorporates a set of virtual teams involved in a new product development initiative. Design/methodology/approach – A range of academic and practitioner literature related to virtual teams and virtual new product development is reviewed. What is Virtual New Product Development and what determines its development in manufacturing firms? These two questions are answered. Findings - The decision to use a virtual team is often a necessity and not a choice; being ‘virtual’ is in most cases not an alternative but a requirement. Enterprise may benefit from building and maintain the virtual teams in a number of ways such as achieving higher quality, accessing and capturing dispersed knowledge and skills regarding the multifunctional and multi-use components and modules, electronically unite experts in highly specialized fields, collaborating more productivity at a distance, achieving tight schedules and start quickly, reducing travel time and cost, enabling the recruitment of talented employees, builds diverse teams, promoting proactive employment and finally reducing discrimination in enterprises. Originality/value - The results of an academic literature review were employed to the literature so far has not paid adequate attention to the virtual team activities in NPD. The results highlight several avenues which would help managers and policy makers to better foster cyber new product development and designers to better channel of their efforts in the design and manufacturing domain.Keywords - New product Development; Virtual teams; Concurrent Collaboration; Review paper
High Risk Behaviors and Related Factors Among Addicts Admitted to Rehabilitation Centers in Southern Kerman, 2014
No full textLimitation and Expansion of Legitimacy and Salvation in the Mystical Words of Rumi
No full textThree general approaches have been emphasized in regard to the legitimacy and salvation of religious followers: exclusivism, pluralism, and inclusiveness. Although religious pluralism emerged as an approach in the twentieth century, its roots can be traced back to ancient texts such as those of Muslim mystics. The most well-known of these is Rumi. This study was conducted using an analytical-descriptive methodology that analyzed Rumi's words as well as scholars' perspectives on him. In spite of numerous indications of exclusivity, inclusivity, and pluralism in his words, it cannot be justified to conclude he is an exclusivist or a pluralist. According to him, there is only one truth, and that truth appears to differ depending on the viewpoint from which it is viewed. A wide range of opinions has arisen as a result of the obscurity of reality and the limitations of our perceptions. Rumi holds that all religions are simply manifestations of the same light that emanates from different sources and that their differences do not make them distinct from one another. His belief is that all religions save the lives of their adherents. Nonetheless, he regards Islam in some instances as the ultimate truth and in others as possessing superior legitimacy
Industrial symbiosis in emerging Economies: A system approach to study industrial symbiosis in industrial clusters
No full textEmerging economies produce 70-90% of the world’s steel, cement, and chemicals, which are essential for development. However, performance indicators such as carbon intensity and energy use per GDP reveal that industrial development trends in emerging economies are not sustainable. The ideal of industrial development that sustains and improves environmental and social structures has resulted in several scientific disciplines, one of which is industrial symbiosis (IS). Imitating natural ecosystems, IS aims to benefit from geographic proximity in industrial clusters for waste recovery and exchange between traditionally separate industries. The formation of IS results in a more sustainable production system by improving the material and energy efficiency of the whole cluster. Here, there is a need for a systematic approach that acknowledges the socio-technical complexity of clusters for IS implementation. This Ph.D. dissertation aimed to understand how industrial symbiosis (IS) shapes within the complex socio-technical structure of industrial clusters to improve their environmental and economic performance in the long term. The first requirement for IS emergence is the existence of technical and collaborative potential due to geographic proximity. Moreover, external factors also influence actors' behaviors in the cluster and, consequently, IS formation. Rules and regulations, on the one hand, and economic conditions, on the other hand, steer actors' decisions toward IS implementation. This research combines engineering, social science, and economic assessment methods to study IS emergence as a part of a (larger) system. To this end, a stepwise approach was taken, starting with assessing the technical potential for IS in an emerging industrial cluster (Chapter 2). We then studied the structure of previous collaborations in the cluster by analyzing regional and national institutions governing actors' behavior (Chapter 3). After assessing IS emergence's technical, collaborative, and institutional aspects, these aspects were incorporated with financial requirements in a MILP optimization model to study system behavior as a whole (Chapter 4). We investigated the formation of IS collaboration under different external conditions and evaluated the contribution of formed IS collaborations to cluster performance improvement. The research further examined the interplay between IS and carbon capture and storage toward a more sustainable cluster development (Chapter 5).To examine the feasibility and functionality of the proposed methods, we used the “Persian Gulf mines and metals special economic zone” (PGSEZ), an iron and steel-based cluster in Iran, as a real case study. The steel industry is critical for economic modernization and one of the most energy-intensive and polluting industries. 23% of final energy demand and 28% of direct CO2 emissions in the industrial sector belong to iron and steel production. This dissertation extends our understanding of the formation of IS as an integrated component of industrial clusters through several conceptual and methodological contribution, while the case study contributes to filling the gap in regional IS studies in developing oil-rich countries, where governing institutional and economic conditions are different from developed economies.Energie and Industri
Investigating The Need To Redesign Amol's Hefdahe Shahrivar Square With Emphasis On The Promotion Of Functional Components
No full text17 Shahrivar square is considered one of the most important squares of Amol, which has four
entrances from the streets of Emam Reza, Taleb Amoli, Sheikh Fazlolah Noori and Emam Khomeini.
This study has been done with the aim of investigating the physical problems of Amol's 17 Shahrivar
square to provide the causes of promoting functional components using its redesign. In this regard, a
main and seven sub-hypothesis was considered which consists of (rhythm and balance, statics and
dynamics, form and decoration, streets and pedestrian route, human activities, campaigns and social
activities). Due to the high volume of population, Cochran's formula of unlimited population is used
that the sample size of 196 individuals was selected. Collecting data was done using questionnaire and
also books and articles. The SPSS software was used to analyze the data. Results obtained indicate
that all components of research are in unfavorable condition and a sever need of redesign is felt in this
square
Teaching Abroad in the Age of American Empire
No full textThe following paper discusses the benefits and challenges associated with teaching abroad. The proliferation of American-style universities, branch campuses, and other hybrid institutions is accelerating. As such, the Globalization of the American model of education has created new employment opportunities for social scientists trained in the US. The author draws from personal experience teaching at an American-style university to elaborate on how teaching at one of these institutions can influence one’s academic career
Author response to laboratory detection of MRSA. Comment on "Antibiotic susceptibility of vancomyin and nitrofurantoin in Staphylococcus aureus isolated from burnt patients in Sulaimaniyah, Iraqi Kurdistan"
No full textComment on
Antibiotic susceptibility of vancomyin and nitrofurantoin in Staphylococcus aureus isolated from burnt patients in Sulaimaniyah, Iraqi Kurdistan. [New Microbiol. 201
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