684 research outputs found

    Erratum: Noninvasive Measurements and FEM Analyses for Estimating the Rotor Bar-Lamination Contact Resistance (IEEE Trans. Ind. Appl. (2021) 57: 1 (208-217) DOI: 10.1109/tia.2020.3028347)

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    In [1], the correct author affiliations should read: Z. Gmyrek is with the Institute of Mechatronics and Information Systems, Lodz University of Technology, Lodz 90-924, Poland (e-mail: [email protected]). S. Vaschetto, M. Ahmadi Darmani, and A. Cavagnino are with the Politecnico di Torino, Dipartimento Energia, Turin 10129, Italy (e-mail: [email protected]; [email protected]; andrea. [email protected])

    Correcting and stylistic researching of the mystical treatise "Wesal Ahmadi" or "Awakher Hayat Mujaddid Alf Sani"

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    The treatise "Wesal Ahmadi" or "Awakher Hayat Mujaddid Alf Sani" is actually a supplement to a treatise called "Zubdat al-Maqamat" or "Barakat al-Ahmadiyya Baqiyeh", which is about the life, works, spirits, and facts of Sheikh Ahmad Sirhindi, nicknamed Imam Rabbani and Mujaddid Alf Sani and some of his caliphs and descendants were written. The author of this treatise is Badr al-Din Sirhindi, a famous Sufi and biographer of the Naqshbandi sect in the 11th century. Badr al-Din wrote this short and concise treatise following the completion of the book "Zubdat al-Maqamat" by Khwaja Muhammad Hashim Keshmi who did not succeed in finishing this book and convey the events and incidents of the last days of Sheikh Ahmad's life. The treatise "Wesal Ahmadi" contains reliable, irreplaceable, and valuable information from the last days the life of Sheikh Ahmad Sirhindi, which is narrated directly and immediately and is necessary for a more detailed understanding of his life, his spirits, and his faith. Despite its fame within the Naqshbandi sect and its importance for research, this treatise has remained rare, hidden, and neglected. In this article, in addition to correcting, suspending, and updating the version and adding textual explanations, an attempt has been made to introduce, analyze, and explain its place and author in the Naqshbandiyeh tradition of the Mujaddidiyeh. The research method in this article is descriptive and analytical, and library sources have been used

    Green Design of Biomedical Prosthetic Devices in Additive Manufacturing: A Focus on Energy Method

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    This Ph.D. thesis presents a comprehensive study conducted over three years on the mechanical strength assessment of 3D-printed lattice structures using energy-based methods. The primary objective was to apply energy-based approaches to evaluate the mechanical behavior of lattice structures. Specifically, the Static Thermographic Method (STM) was extensively employed to monitor energy release in a wide range of scaffold designs, providing valuable insights into their failure mechanisms. To complement the thermographic investigations, finite element simulations (FEM) and DIC image correlation were conducted to predict structural failure and establish correlations with thermographic data. These numerical analyses helped in understanding the stress distribution and failure initiation points, ensuring a robust validation of experimental results. As an initial phase of the research, thermographic techniques were applied to 3D-printed openhole plates and crosshatched specimens to assess their damage initiation and failure characteristics. Subsequent studies extended this approach to various scaffold configurations, enhancing the understanding of mechanical performance and energy dissipation in porous structures. The experimental activities were conducted at the Laboratory of Mechanics at the University of Messina. Additionally, part of the research was carried out at the Polytechnical University of Timisoara, under the supervision of Prof. Liviu Marsavina. This thesis has opened several topics for future research, particularly in refining energy-based failure assessment methods for additively manufactured materials and optimizing lattice structures for biomedical and engineering applications. The author intends to further explore these research directions to advance the integration of thermographic methods in mechanical characterization and structural integrity assessments

    Density based problem space search for the capacitated clustering p-median problem

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    In the Capacitated Clustering Problem (CCP), a given set of n weighted points is to be partitioned into p clusters such that, the total weight of the points in each cluster does not exceed a given cluster capacity. The objective is to find a set of p centers that minimises total scatter of points allocated to them. In this paper a new constructive method, a general framework to improve the performance of greedy constructive heuristics, and a problem space search procedure for the CCP are proposed. The constructive heuristic finds patterns of natural subgrouping in the input data using concept of density of points. Elements of adaptive computation and periodic construction-deconstruction concepts are implemented within the constructive heuristic to develop a general framework for building efficient heuristics. The problem-space search procedure is based on perturbations of input data for which a controlled perturbation strategy, intensification and diversification strategies are developed. The implemented algorithms are compared with existing methods on a standard set of bench-marks and on new sets of large-sized instances. The results illustrate the strengths of our algorithms in terms of solution quality and computational efficiency.AHMAD I, 1995, CONCURRENCY-PRACT EX, V7, P411, DOI 10.1002-cpe.4330070506; AHMADI S, 2004, EUROPEAN J OPERA JAN; AHMADI S, 1998, THESIS U KENT CANTER; Baldacci R, 2002, COMPUT OPER RES, V29, P365, DOI 10.1016-S0305-0548(00)00072-1; BAXTER J, 1981, J OPER RES SOC, V32, P815, DOI 10.2307-2581397; BECK MP, 1982, EES821 PRINC U; Brucker P, 1977, OPTIMIZATION OPERATI, P45; CAPTIVO ME, 1991, EUR J OPER RES, V52, P65; CHHAJED D, 1993, LOCATION SCI, V1, P263; DHODHI MK, 1995, IEEE T COMPUT AID D, V14, P934, DOI 10.1109-43.402494; DONGARRA JJ, 2001, PERFORMANCE VARIOUS; Franca P. M., 1999, International Transactions in Operational Research, V6, DOI 10.1016-S0969-6016(99)00017-9; Franco J, 1997, CROP SCI, V37, P972; GENDREAU M, 1992, OPER RES, V40, P1086, DOI 10.1287-opre.40.6.1086; Glover F, 2000, CONTROL CYBERN, V29, P653; Hansen P, 1997, MATH PROGRAM, V79, P191, DOI 10.1007-BF02614317; HANSEN P, 1994, EUR J OPER RES, V72, P602, DOI 10.1016-0377-2217(94)90427-8; HANSEN P, 1993, G9338; Karimi J., 1986, Journal of Management Information Systems, V3; KLEIN G, 1991, NAV RES LOG, V38, P447, DOI 10.1002-1520-6750(199106)38:3447::AID-NAV32203803123.0.CO;2-0; KOSKOSIDIS YA, 1992, TRANSPORT RES B-METH, V26, P365, DOI 10.1016-0191-2615(92)90032-R; Leon VJ, 1997, IIE TRANS, V29, P115, DOI 10.1023-A:1018550624429; LEON VJ, 1995, OR SPEKTRUM, V17, P173; Liu G., 1968, INTRO COMBINATORIAL; Maniezzo V, 1998, J HEURISTICS, V4, P263, DOI 10.1023-A:1009665717611; MIRZAIAN A, 1985, NETWORKS, V15, P1, DOI 10.1002-net.3230150102; MULVEY JM, 1984, EUR J OPER RES, V18, P339, DOI 10.1016-0377-2217(84)90155-3; MURALIDHAR K, 1995, COMPUT OPER RES, V22, P701, DOI 10.1016-0305-0548(94)00063-E; Naphade KS, 1997, ANN OPER RES, V70, P307, DOI 10.1023-A:1018982423325; NEMHAUSER GL, 1988, WILEYINTERSCIENCE SE; Osman I. H., 1994, INT T OPER RES, V11, P317, DOI 10.1111-1475-3995.d01-43; Osman Ibrahim H, 1996, METAHEURISTICS THEOR; OSMAN IH, 2002, GUIDED CONSTRUCTION; Osman IH, 1995, OPERATIONAL RES TUTO, P92; OSMAN IH, 1995, OR SPEKTRUM, V17, P211; Osman IH, 1996, ANN OPER RES, V63, P513; OSMAN IH, 2003, JOINT EURO INFORMS M; Ribeiro CC, 2002, ESSAYS SURVEYS METAH; RUSSELL RA, 1995, TRANSPORT SCI, V29, P156, DOI 10.1287-trsc.29.2.156; Steiglitz K., 1968, Proceedings sixth Allerton conference on circuit and system theory; STORER RH, 1993, OPERATIONS RES PRODU; STORER RH, 1992, MANAGE SCI, V38, P1495, DOI 10.1287-mnsc.38.10.1495; Vakharia AJ, 2000, EUR J OPER RES, V123, P640, DOI 10.1016-S0377-2217(99)00103-4; VOSS S, 1998, METAHEURISTICS ADV T; WONG MA, 1982, J AM STAT ASSOC, V77, P841, DOI 10.2307-228731693

    Correction to: Fluorescence detection of laccases activity by the photoinduced electron transfer (PET) process (JBIC Journal of Biological Inorganic Chemistry, (2020), 25, 1, (151-159), 10.1007/s00775-019-01748-0)

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    The original article can be found online.In the original article published, the affiliation of the author Elahe Ahmadi is incorrect. The correct affiliation is �Department of Chemistry, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran�. © 2020, Society for Biological Inorganic Chemistry (SBIC)

    Constant market shares analysis: uses, limitations and prospects

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    In this paper, we generalise the constant market shares (CMS) framework, with particular attention to the underlying theoretical conditions required for diagnostic interpretation. The approach is applied to the analysis of the export performance of the Australian processed food sector in South-East Asia over the period 1980–2003. We conclude that the usefulness of CMS analysis for evaluating a country’s international trade performance depends upon the empirical validity of the aggregation assumptions implicit in the diagnostic interpretation.aggregation, Armington model, competitiveness, constant market shares, Marketing,

    Greedy random adaptive memory programming search for the capacitated clustering problem

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    In the capacitated clustering problem (CCP), a given set of n weighted points is to be partitioned into p clusters such that, the total weight of the points in each cluster does not exceed a given cluster capacity. The objective is to find a set of p centers that minimises the total scatter of points allocated to these centers. In this paper, we propose a merger of Greedy Random Adaptive Search Procedure (GRASP) and Adaptive Memory Programming (AMP) into a new GRAMPS framework for the CCP. A learning process is kept in charge of tracking information on the best components in an elite set of GRAMPS solutions. The information are strategically combined with problem-domain data to restart the construction search phase. At early stage of constructions, priorities are given to problem-domain data and progressively shifted towards generated information as the learning increases. GRAMPS is implemented with an efficient local search descent based on a restricted λ-interchange neighbourhood. Extensive experiments are reported on on a standard set of bench-marks from the literature and on a new set of large instances. The results show that GRAMPS has an efficient learning mechanism and is competitive with the existing methods in the literature. © 2003 Elsevier B.V. All rights reserved.AHMADI S, 2004, ANN OPERATIONS RES M; AHMADI S, 1998, THESIS U KENT CANTER; AIEX RM, 2003, INFORMS J COMPUTING; Baldacci R, 2002, COMPUT OPER RES, V29, P365, DOI 10.1016-S0305-0548(00)00072-1; BECK MP, 1982, EES821 PRINC U; Brucker P, 1977, OPTIMIZATION OPERATI, P45; CHHAJED D, 1993, LOCATION SCI, V1, P263; DONGARRA JJ, 2001, PERFORMANCE VARIOUS; Dorigo M, 1996, IEEE T SYST MAN CY B, V26, P29, DOI 10.1109-3477.484436; FEO TA, 1989, OPER RES LETT, V8, P67, DOI 10.1016-0167-6377(89)90002-3; Fleurent C, 1999, INFORMS J COMPUT, V11, P198, DOI 10.1287-ijoc.11.2.198; Franca P. M., 1999, International Transactions in Operational Research, V6, DOI 10.1016-S0969-6016(99)00017-9; Glover F, 2000, CONTROL CYBERN, V29, P653; Glover F., 1977, DECISION SCI, V8, P156, DOI DOI 10.1111-J.1540-5915.1977.TB01074.X; Glover F., 1997, ADV METAHEURISTICS O, P1; Golden BL, 1997, COMPUT OPER RES, V24, P445, DOI 10.1016-S0305-0548(96)00065-2; Hansen P, 1997, MATH PROGRAM, V79, P191, DOI 10.1007-BF02614317; HANSEN P, 1994, EUR J OPER RES, V72, P602, DOI 10.1016-0377-2217(94)90427-8; HANSEN P, 1993, G9338; HANSEN P, 2002, ESSAYS SURVEYS METAH; Karimi J., 1986, Journal of Management Information Systems, V3; KLEIN G, 1991, NAV RES LOG, V38, P447, DOI 10.1002-1520-6750(199106)38:3447::AID-NAV32203803123.0.CO;2-0; KOSKOSIDIS YA, 1992, TRANSPORT RES B-METH, V26, P365, DOI 10.1016-0191-2615(92)90032-R; Laguna M, 1999, INFORMS J COMPUT, V11, P44, DOI 10.1287-ijoc.11.1.44; Maniezzo V, 1998, J HEURISTICS, V4, P263, DOI 10.1023-A:1009665717611; MIRZAIAN A, 1985, NETWORKS, V15, P1, DOI 10.1002-net.3230150102; MULVEY JM, 1984, EUR J OPER RES, V18, P339, DOI 10.1016-0377-2217(84)90155-3; Osman I. H., 1994, INT T OPER RES, V11, P317, DOI 10.1111-1475-3995.d01-43; Osman Ibrahim H, 1996, METAHEURISTICS THEOR; OSMAN IH, 2002, GUIDED CONSTRUCTION; Osman IH, 1999, LECT NOTES ARTIF INT, V1611, P11; Osman IH, 1995, OPERATIONAL RES TUTO, P92; Osman IH, 1996, ANN OPER RES, V63, P513; OSMAN IH, 2003, JOINT EURO INFORMS M; PITSOULIS LS, 2001, HDB APPL OPTIMIZATIO; Resende Festa P., 2001, ESSAYS SURVEYS METAH; Rochat Y., 1995, Journal of Heuristics, V1, DOI 10.1007-BF02430370; Vakharia AJ, 2000, EUR J OPER RES, V123, P640, DOI 10.1016-S0377-2217(99)00103-4; VOSS S, 1998, METAHEURISTICS ADV T30252

    Living with diversity in Jane-Finch

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    In the past decades, diversity has become a popular catchphrase in theoretical, policy and public discourses in Canadian cities. Toronto is Canada’s most diverse city, wherein a long-standing immigration history coupled by the introduction of the Canadian Multiculturalism policy in the 1970s have rendered diversity a prominent value for the city’s inhabitants (Ahmadi and Tasan-Kok, 2014). Celebration of diversity has become a popular theme in Toronto’s policy and image making, such that many policy documents have proclaimed diversity as the city’s biggest strength. However, while the celebration of diversity has attracted funds and services to inner city Toronto, stereotyping based on different categories of diversity (particularly ethnicity and class) has resulted in the stigmatization and criminalization of poor racialised neighbourhoods located at the edges of the city. Diversity in urban areas may derive from multiple factors such as behaviour, lifestyles, activities, ethnicity, age, gender and sexuality profiles, entitlements and restrictions of rights, labour market experiences, and patterns of spatial distribution. Research on diversity in the past decades has resulted in the creation of an extensive body of work on the notion. However, there are a few gaps in theory which the present study seeks to address, namely: (a) Research on diversity often overlooks the complexity and dynamic nature of diversity and maintains an overemphasis on ethnicity. (b) Despite plentiful evidence for the diversification of peripheral neighbourhoods, the available body of research focuses primarily on inner-city areas, leaving out the more remote rural and suburban areas (Humphris, 2014). (c) There is a tendency to present a ‘flat’ or ‘horizontal’ type of differentiation of diversity, which does not account for the various positions and hierarchies within and between different categories of difference. In light of these gaps, this study seeks to add to our understanding of urban diversity, as perceived and experienced by those who inhabit, frequent and govern urban areas. It answers the following primary research question: How is diversity experienced at the neighbourhood level, as (a) discourse, (b) social reality, and (c) practice? Diversity as discourse refers to the public narratives around diversity, while diversity as social reality concerns the descriptive characteristics that render an area diverse. Diversity as practice refers to policies, programs and local practices that aim towards managing diversity (see also Berg and Sigona, 2013). The research question is investigated in four interconnected chapters, which engage with the three formerly mentioned dimensions to various degrees. The study further makes use of a variety of qualitative and participatory techniques (i.e. qualitative interviews, roundtable talks, participant observations, and focus groups) to gather rigorous empirical data on living with and managing diversity in an inner-suburban neighbourhood of Toronto, namely Jane-Finch

    A COMBINED FREQUENCY ANALYSIS OF THE ν3,ν9\nu_{3}, \nu_{9}, AND THE FAR INFRARED TORSIONAL SPECTRA OF ETHANE

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    a^{a} D. Bermejo, J. Santos, P. Cancio, J. M. Fernandez-Sanchez, and S. Montero, J. Chem. Phys. 97, 7055 (1992). b^{b} N. Moazzen-Ahmadi, J. Schroderus, and A.R.W. McKellar, J. Chem. Phys. 111, 9609 (1999).Author Institution: Department of Physics and Astronomy, University of CalgaryThe lowest frequency nondegenerate fundamental band ν3\nu_{3} of ethane is Raman active and centered near 992cm1992 cm^{-1}. A stimulated Raman spectrum of the Q branch for this band (at a resolution of 0.0055cm10.0055 cm^{-1}) has been recorded by Bermejo etal.aet al.^{a} The torsion-rotation branch with σ=3\sigma = 3 is perturbed by over 1cm11 cm^{-1}. The lowest frequency degenerate fundamental band ν9\nu_{9} is infrared active and occurs in the 12μm12-\mu m region. A high resolution (0.0014cm1)(0.0014 cm^{-1}) Fourier transform spectrum of this band has been measured by Moazzen-Ahmadi etal.bet al.^{b}. The observed torsional splittings for this band are substantially larger than expected simply from the observed increase in the barrier height. Because of the proximity of the upper level (l=1;K=17,σ=0)(l=-1; K=17, \sigma=0) in ν9=1\nu_{9}=1 with its interacting partner (ν9=0,ν4=3)(\nu_{9}=0, \nu_{4}=3) a perturbation allowed band 3ν43\nu_{4} has also been observed. We have carried out a combined frequency analysis of ν3,ν9\nu_{3}, \nu_{9}, and 3ν43\nu_{4} bands together with the far infrared torsional spectra in the ground vibrational state (gs). A vibration-torsion-rotation Hamiltonian with 32 fitting parameters was used. Three interacting torsional stacks, one for each of the vibrational state, were considered. The large torsional splitting in the ν9\nu_{9} band is attributed to Coriolis-like interations between the torsional stacks of gs and ν9=1\nu_{9} = 1 whereas the large shift for the torsion-rotation branch with σ=3\sigma = 3 in the ν3\nu_{3} band is attributed to a Fermi-like interaction between the torsional stacks of gs and ν3=1\nu_{3} = 1. The details of this analysis will be presented
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