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Conference Object Citation - Scopus: 1An Investigation About Process Matchmaking Performances of Unstructured and Decentralized Digital Environments(2007) Cakir,B.; Kilic,H.Efficient matchmaking is an important problem in unstructured and decentralized digital environments. We report the results of simulations of these environments and provide measurements of match performance focusing on unstructured and decentralized environments. In the study, different environment models including P2P (Hypergrid, Gnutella with/without ultrapeer); small-world (WattsStrogatz); heavy-tailed and random versions of Autonomous System Waxman model showing power-law distribution property; random and 2D-Grid are considered. The flooding mechanism enabling process encounters for match purposes is uninformed Breadth-First-Search. Simulations show that the matchmaking performance of random environment outperforms the others for almost all different problems and time-to-live settings. On the other hand, the total cost of small world environment model is the highest for almost all setups. © 2007 IEEE.Article Citation - WoS: 21Citation - Scopus: 25Inorganic Hole Transport Materials in Perovskite Solar Cells Are Catching Up(Elsevier Sci Ltd, 2023) Sajid, Sajid; Alzahmi, Salem; Ben Salem, Imen; Park, Jongee; Obaidat, Ihab M.More research is required to further optimize device efficiency, stability, and reduce the materials cost as perovskite solar cells (PSCs) approach to industrialization. Modulating the optoelectronic features and chemical coupling of the hole transport materials (HTMs) remains a prominent field of study in PSCs due to the significant impact these materials have on the device performance and stability. In order to speed up the commercialization of these cells, it is also important to use cost-effective HTMs in PSCs. InorganicHTMs are superior to other types of HTMs in terms of their advantages in boosting device performance and producing PSCs at a reasonable cost, in addition to their superior charge transport capabilities, desired energy levels, and intrinsic thermal and chemical stability. A detailed overview of inorganicHTMs, including metal oxides, cyanates, phthalocyanines, chalcogenides, nitrides, and carbides, is presented in this review. After briefly discussing the primary physical and optoelectronic characteristics of inorganic-HTMs, the critical functions of the above-mentioned materials as HTMs in PSCs are addressed. This review concludes by offering suggestions for future research that could considerably boost the performance of the PSCs with cost-effective inorganic-HTMs.Conference Object An Investigation About Process Matchmaking Performances of Unstructured and Decentralized Digital Environments(2007) Cakir,B.; Kilic,H.Efficient matchmaking is an important problem in unstructured and decentralized digital environments. We report the results of simulations of these environments and provide measurements of match performance focusing on unstructured and decentralized environments. In the study, different environment models including P2P (Hypergrid, Gnutella with/without ultrapeer); small-world (WattsStrogatz); heavy-tailed and random versions of Autonomous System Waxman model showing power-law distribution property; random and 2D-Grid are considered. The flooding mechanism enabling process encounters for match purposes is uninformed Breadth-First-Search. Simulations show that the matchmaking performance of random environment outperforms the others for almost all different problems and time-to-live settings. On the other hand, the total cost of small world environment model is the highest for almost all setups. © 2007 IEEE.Article Citation - WoS: 27The Dea - Fuzzy Anp Department Ranking Model Applied in Iran Amirkabir University(Budapest Tech, 2010) Rouyendegh, Babak Daneshvar; Erol, SerpilProposed in this study is a hybrid model for supporting the department selection process within Iran Amirkabir University. This research is a two-stage model designed to fully rank the organizational departments where each department has multiple inputs and outputs. First, the department evaluation problem is formulated by Data Envelopment Analysis (DEA) and separately formulates each pair of units. In the second stage, the pair-wise evaluation matrix generated in the first stage is utilized to fully rank-scale the units via the Fuzzy Analytical Network Process (FANP). The FANP method adopted here uses triangular fuzzy numbers. ANP equipped with fuzzy logic helps in overcoming the impreciseness in the preferences. DEA-FANP ranking does not replace the DEA classification model; rather, it furthers the analysis by providing full ranking in the DEA context for all departments, efficient and inefficient.Article Citation - WoS: 28Citation - Scopus: 33Fluid Elements in Machine Tools(Elsevier, 2017) Wegener, Konrad; Mayr, Josef; Merklein, Marion; Behrens, Bernd-Arno; Aoyama, Tojiro; Sulitka, Matej; Moehring, Hans-ChristianFluids play a major role for production machinery and serve for very different tasks as lubricating, tempering, cleaning, transmitting force and energy. Due to maintenance requirements and the environmental impact their utilization is under discussion and alternatives are looked for. In this paper an overview of the latest research activities in the field of fluid elements in machine tools is presented. The topic of the paper includes an overview of the fluids used in machine tools, the usage of fluidic elements, supply and treatment units, and their influence on machine tools performance. A link to fluid media on energy efficiency is given. Research challenges in order to increase the performance of machine tools are discussed. The paper excludes metal working fluids, which have been treated in Brinksmeier et al. [33]. (C) 2017 Published by Elsevier Ltd on behalf of CIRP.
