Porosity control of in situ forming tungsten carbide in laser additive manufacturing (LAM)

© 2020 Old City Publishing, Inc. Published by license under the OCP Science imprint, a member of the Old City Publishing Group.The effect of powder compression on the formation of porosity when heating with a laser beam has been investigated. The starting materials were elemental powders of Fe, W and C which were locally melted to form WC in Fe matrix by an in situ laser additive manufacturing (LAM) process. The resulting microstructures have been studied and chemical analysis has been performed. The main application for the process is for the production of WC based or carbide cutting tooling by very accurate deposition of hard-facing materials onto a steel substrate. Fe is used as the matrix material since ferrous alloys are employed as the substrate for these applications.Peer reviewe

An evaluation methodology for ergonomic design of electronic consumer products based on fuzzy axiomatic design

This article is posted with permission of OCP Science imprint. Copyright @ 2008 Old City Publishing Group.The development life cycle of software and electronic products has been shortened by the growth of rapid prototyping techniques. The evaluation of electronic consumer products should consider hardware and software as well as the ergonomic usability, emotional appeal and aesthetic integrity of the design. This research follows a systematic approach to develop an evaluation methodology for electronic mobile products on ergonomic design. The proposed methodology is based on fuzzy multi attribute decision making and fuzzy axiomatic design realized in three steps; determination of ergonomic attributes for electronic consumer products, determination of a representative set of alternatives, and selection of the best alternative in terms of ergonomic design by utilizing fuzzy axiomatic design. A case study is also provided to support the proposed methodology

Fuzzy rule-based system applied to risk estimation of cardiovascular patients

Cardiovascular decision support is one area of increasing research interest. On-going collaborations between clinicians and computer scientists are looking at the application of knowledge discovery in databases to the area of patient diagnosis, based on clinical records. A fuzzy rule-based system for risk estimation of cardiovascular patients is proposed. It uses a group of fuzzy rules as a knowledge representation about data pertaining to cardiovascular patients. Several algorithms for the discovery of an easily readable and understandable group of fuzzy rules are formalized and analysed. The accuracy of risk estimation and the interpretability of fuzzy rules are discussed. Our study shows, in comparison to other algorithms used in knowledge discovery, that classifcation with a group of fuzzy rules is a useful technique for risk estimation of cardiovascular patients. © 2013 Old City Publishing, Inc

Strong fuzzy subsethood measures and strong equalities via implication functions

In this work we present the definition of strong fuzzy subsethood measure as a unifiying concept for the different notions of fuzzy subsethood that can be found in the literature. We analyze the relations of our new concept with the definitions by Kitainik ( [20]), Young ( [26]) and Sinha and Dougherty ( [23]) and we prove that the most relevant properties of the latter are preserved. We show also several construction methods. © 2014 Old City Publishing, Inc

Biological computing using perfusion anodophile biofilm electrodes (PABE)

This paper presents a theoretical approach to biological computing, using biofilm electrodes by illustrating a simplified Pavlovian learning model. The theory behind this approach was based on empirical data produced from a prototype version of these units, which illustrated high stability. The implementation of this system into the Pavlovian learning model, is one example and possibly a first step in illustrating, and at the same time discovering its potential as a computing processor. © 2007 Old City Publishing, Inc

Peers Don\u27t Let Peers Perish: Encouraging Research and Scholarship Among Junior Library Faculty

Traditional mentoring has many benefits, but peer mentoring can also offer a valuable support structure along the road to tenure. The Junior Faculty Research Roundtable (JFRR) is a peer-mentoring group for junior library faculty at the colleges and graduate schools of the City University of New York (CUNY). Created to encourage junior library faculty in their scholarly endeavors, JFRR organizes professional development events and facilitates in-person and online conversations on research, writing, and publishing. Now two years old, the group has transformed a large number of scattered junior library faculty into a supportive community of scholars

Peers Don’t Let Peers Perish: Encouraging Research and Scholarship Among Junior Library Faculty

Traditional mentoring has many benefits, but peer mentoring can also offer a valuable support structure along the road to tenure. The Junior Faculty Research Roundtable (JFRR) is a peermentoring group for junior library faculty at the colleges and graduate schools of the City University of New York (CUNY). Created to encourage junior library faculty in their scholarly endeavors, JFRR organizes professional development events and facilitates in-person and online conversations on research, writing, and publishing. Now three years old, the group has transformed a large number of scattered junior library faculty into a supportive community of scholar

Adaptive Reuse Policy Evaluation at the Old City of Sana’a Yemen

The study evaluates the adaptive reuse policy at the Old City of Sana’a, Yemen. A case study of the Tower Houses and private investors establishing projects such as; Hotel, and Art Gallery with high intervention. The data collection was by i) Structured interview with authorities, ii) On-site observation applied services, iii) literature search of forms, guidelines, previous projects, and reports. In result, few vital gaps in the policy practice between the permit of intervention and practice. Also, stages of intervention lack monitoring and expert’s validation.Additionally, Hotel guidelines inapplicable to the Tower House capacity. Findings will help the authority to upgrade their policy practice and guidelinesKeywords: Adaptive Reuse, Policy, Evaluation, the Old City Sana’a –Yemen. eISSN: 2398-4287 © 2019. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.DOI: https://doi.org/10.21834/e-bpj.v4i11.1746         

Historical and cultural heritage as a factor for the tourist development of a city

The article considers the influence of historical and cultural heritage preservation on the development of the tourist potential of Kazan. Today, the protection of cultural heritage is one of the state priorities. The Republic of Tatarstan is distinguished by a rich cultural heritage. Multicultural and multi-confessional nature are present on this land traditionally. The capital of the republic - the city of Kazan - is visited annually by millions of tourists. The authors pay a special attention to the most visited tourist sites of the city: the museum-reserve "Kazan Kremlin", the Old-Tatar Sloboda, the Kazan Bogoroditsky Monastery and the historical center. In recent years, full-scale works have been carried out in the field of cultural heritage preservation, in particular on designated sites, whose results are now witnessed by the residents and the tourists of Kazan. In order to popularize the cultural heritage and attract the tourists to the city, Kazan museums conduct an active exhibition, methodical, publishing and other activities. All necessary infrastructure for the reception of tourists is created in the historical center of the city: hotels, food and specialized trade places. The cultural heritage of the city and modern tourist realities do not contradict, but complement each other harmoniously.peer-reviewe

Urban Planning in the First Unfortified Spanish Colonial Town: The Orientation of the Historic Churches of San Cristóbal de La Laguna

The city of San Cristóbal de La Laguna in the Canary Island of Tenerife (Spain) is of exceptional value as the first unfortified colonial city to follow regular plan - a grid, outlined by straight streets that form squares - in the overseas European expansion. It constitutes a historical example of the so-called "Town of Peace", the archetype of a city-republic in a new land that employed its own natural boundaries to delimit and defend itself. Founded in 1496, the historical centre of the old city was declared a World Heritage Site by UNESCO in 1999 (UNESCO World Heritage Committee, n.d.). We analyse the exact spatial orientation of 21 historic Christian churches currently existing in the old part of La Laguna, which we take as a good indicator of the original layout of the urban lattice. We find a clear orientation pattern that, if correlated with the rising or setting Sun, singles out an absolute-value astronomical declination slightly below 20°, which, within the margin of error of our study, might be associated with the 25th July feast day of San Cristóbal de Licia, the saint to whom the town was originally dedicated. We also discuss at some length some recent proposals which invoke somewhat far-fetched hypotheses for the planimetry of the old city and conclude with some comments on one of its outstanding features, namely its Latin-cross structure, which is apparent in the combined layout of some of its most emblematic churches.Fil: Gangui, Alejandro. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Belmonte, Juan Antonio. Instituto de Astrofísica de Canarias; Españ