bluuebunny/crossref_metadata_2025_split huggingface dataset:
Responding to user's expectation in the library: innovative Web 2.0 applications at JUIT Library
Authors: Ram Shri , Paul Anbu K John , Kataria Sanjay 
Published: October 2011

PurposeThis paper seeks to provide an insight into the implementation of some of the innovative Web 2.0 applications at Jaypee University of Information Technology with the aim of exploring the expectations of the users and their awareness and usage of such applications.Design/methodology/approachThe study was undertaken at the Learning Resource Centre (LRC), Jaypee University of Information Technology (JUIT), Solan, Himachal Pradesh, India. The LRC at JUIT serves its patrons in supplementing their research needs while creating an ambience for teaching, learning and research. The emergence of digital technologies and information and communications technology (ICT) tools in libraries has encouraged the implementation of a wide range of applications, such as digital libraries, video on demand, reference services and database services into library services. The advent of next‐generation web technologies, known as Web 2.0 applications, has prompted a number of other pertinent services to be implemented to enhance the information literacy skills of the existing services. A survey method was used to understand the basic awareness and expectations of library users, and the usability of resources.FindingsThe LRC has made a number of provisions to adopt some Web 2.0 applications in its library services to create information literacy. The users of the JUIT library still lack awareness about various Web 2.0 applications necessary for teaching and learning.Practical implicationsThe paper suggests that Web 2.0 applications can be used effectively to create information literacy amongst users. Library and information science (LIS) educators should take advantage of advances in the field of ICT and consider the learning preferences of information natives as well as information immigrants. Web 2.0 supports a constructivist approach to information awareness tools, and has great potential to socialise learning and information delivery to a greater extent. Web 2.0 technologies should be implemented as a medium of information communication, taking into account the pedagogical perspectives.Originality/valueThe case study is a practical application at the Jaypee University of Information Technology. The LRC has implemented some Web 2.0 applications in the Library. The study was undertaken at the university to understand the basic awareness of Web 2.0 and to create information literacy amongst users through it.
A core journal decision model based on weighted page rank
Authors: Wang Hei‐Chia , Chou Ya‐lin , Guo Jiunn‐Liang 
Published: October 2011

PurposeThe paper's aim is to propose a core journal decision method, called the local impact factor (LIF), which can evaluate the requirements of the local user community by combining both the access rate and the weighted impact factor, and by tracking citation information on the local users' articles.Design/methodology/approachMany institutions with a limited budget can subscribe only to the most valuable journals for their users. The importance of a journal to a local community can be calculated in many ways. This paper takes both global and local access frequency and journal citations into consideration. The method of weighted web page link analysis is adopted.FindingsThis paper finds that the weighted page rank may be used efficiently in the core journal decisions. Experimental results demonstrate that the proposed LIF can effectively suggest journals to local users better than existing methods (i.e. impact factor or the local journal rank).Research limitations/implicationsThis research requires the determination of the thesis scores, which needs authorisation from the authors. If the scores are not available, the scores may be subjectively assigned or retrieved from the other resources.Practical implicationsA case study in National Cheng Kung University was conducted to show that the LIF can be used to help library managers evaluate the real demands of local community users.Originality/valueRather than existing research, this paper focuses on the utilisation and requirements of local community users and also finds the contributions of citation information to be significant and critical.
Investigation of roller burnishing on Zamac5 cast alloy alloyed by copper
Authors: Al‐qawabah Safwan M. 
Published: October 2011

PurposeThis paper seeks to investigate the effect of roller burnishing on the surface roughness and hardness of Zn−5% Al alloyed by copper at varied percentages.Design/methodology/approachCopper was added to molten Zn−5%Al cast alloy at different percentages, then the roller burnishing process with different parameters was carried out on the five Zamac5−Cu alloys, however the effect on the surface roughness and hardness was investigated.FindingsIt was found that there is an enhancement on the hardness and the maximum is 18 per cent in Zamac5−10% Cu alloy. The best surfaces result was 0.05 μm that obtained at 0.04 mm rev −1 burnishing feed rate in Zamac5−10% Cu alloy.Originality/valueThe addition of copper is recommended to be added to Zamac5 up to percentage of maximum solubility of copper in Zamac5 alloy.
Investigation of the measurement precision of oil analysis instruments, using fully formulated oils. Part 2: contamination‐measuring instruments
Authors: Berg Sven , Jungmar Ulf , Lundberg Jan , Vähäoja Pekka 
Published: October 2011

PurposeThe aim of this study is to determine the variation of the different oil analysis instruments in terms of standard deviation and CV‐values, when measuring samples of fully formulated hydraulic and gear oils taken from working systems.Design/methodology/approachIn this investigation two different spectrometric techniques, ICP‐OES and RDE‐OES, have been studied to determine the instruments' precision of measurement and ability to measure the absolute level of contamination.FindingsThe ICP has better precision of measurement of the two instruments, but cannot predict the absolute values of contamination when oil samples are only treated by organic solvent dilution if the samples include large or dense particles. It is therefore not too good, with the sample pre‐treatment method used, at detecting wear processes that produce dense/large particles, such as pitting failure. For instance, microwave‐assisted acid digestion could be used for sample pre‐treating to obtain accurate results in that case. It should, however, be able to detect wear mechanisms that produce small particles such as abrasive wear in any case: the ICP has a repeatability value ofr=3 per cent and a reproducibility value ofR=12 per cent for contamination levels of between 50‐400 PPM andr=0.6 PPM andR=2 PPM, respectively, at values below 50 PPM; the RDE cannot predict the absolute value of contamination if this includes large or dense particles if proper sample pre‐treatment is not used. It is therefore not good at detecting wear mechanisms that produce dense/large particles (if the oil samples are not pre‐treated properly) such as pitting but should be able to detect abrasive wear and similar processes that produce small particles in any case; the RDE's precision of measurement is not as good as the ICP, with a reproducibility variation ofR=r=25 per cent for contamination levels between 20‐500 PPM andR=r=6 PPM for contamination level below 20 PPM.Research limitations/implicationsMeasuring only on fully formulated oils from hydraulic and gear systems.Practical implicationsThe study will be of significant support regarding industrial interpretation of measurement results from the most common oil particle measurement methods.Originality/valueNo other similar studies are known.
Influence of tellurium addition on drilling of microalloyed steel (DIN 38MnS6)
Authors: Costa Eder , Luiz Nelis , da Silva Marcio , Machado Alisson , Ezugwu Emmanuel 
Published: October 2011

PurposeThis paper seeks to evaluate the influence of tellurium content on the machinability of the microalloyed pearlitic steel (DIN 38MnS6). Two grades of steels were used, one with high (27 times greater) tellurium content and one with a low tellurium content. Machinability of the steel was determined by the number of holes drilled by the tool before undergoing severe deformation. The drilling test matrix was prepared using a fractional factorial design with five input variables studied at two levels (25‐1). Other variables investigated include cutting speed (45 and 60 m/min), feed rate (0.15 and 0.25 mm/rev), geometry of the twist drills and use of minimum quantity lubrication (MQL) at the flow rates of 30 and 100 ml/h. Statistical analysis of the results revealed that composition of the work material was most influential on tool performance. Addition of tellurium to the steel significantly improved machinability, increasing the number of drilled holes by over 100 per cent. The MQL flow rate was the least influential as increase in the flow from 30 to 100 ml/h reduced drill life only by about 9 per cent.Design/methodology/approachThe drilling tests were carried out in the vertical position, up‐down, without pre‐holes (full drilling). Cutting speeds of 45 and 60 m/min and feed rates of 0.15 and 0.25 mm/rev were employed. Drills with two sharpening types were tested. Cutting fluid used was vegetable based and applied using the MQL technique at flow rates of 30 and 100 ml/h. The rejection criterion adopted was severe deformation of the drills and the number of machined holes was used to measure the machinability of the material.FindingsOf all the variables investigated in this study, the least influential on drill performance is the MQL flow rate. Increase in the flow rate from 30 to 100 ml/h reduced drill performance by 9 per cent, contrary to expectation. This is a result of the cooling‐lubricant action balance promoted by the cutting fluid applied in low quantities (MQL). The most influential variable on drill performance is addition of Te to the work material which gave over twofold (103 per cent) improvement in drill performance at the cutting conditions investigated. The Te particles act at the chip‐tool interface, reducing the work necessary to shear the material during chip formation. Increase in both the cutting speed and the feed rate both lowered drill performance during machining due to associated increase in cutting temperature which tended to accelerate thermally related wear mechanisms.Originality/valueThis work was conducted to evaluate the machinability of a novel alloyed steel employed in the automobile industry. Drilling was considered as most automobile components especially the engine block is designed with many holes which require drilling process.
Mechanical finishing honing: cutting regimes and surface texture
Authors: Vrac Damir S. , Sidjanin Leposava P. , Balos Sebastian S. 
Published: October 2011

PurposeThe aim of this paper was to confirm the hypothesis that it is possible to conduct normal honing by mechanical method, providing the prescribed quality of cylinder liners. For this, cutting parameter optimization is needed.Design/methodology/approachNormal honing was performed on grey cast iron with lamellar graphite and mostly pearlitic microstructure of metal matrix. Cutting speed, feed rate and specific pressure during metalworking were varied and accordingly, a mathematical model for processing of results by the least squares method was proposed. Surface texture was controlled by scanning electron microscope.FindingsA mathematical model describing the influence of cutting speed, feed rate and specific pressure during metalworking was devised. At the same time, surface texture was adequate, with geometrically appropriate crosshatch pattern, without standing‐out material and mashed graphite lamellas.Originality/valueIt was found that normal honing may be done by mechanical means, providing exceptional quality of lubrication. The most influential metalworking parameter was shown to be specific pressure.
Variation of thin film deposition rate on SS 314 with the variation of gas flow rate using CVD
Authors: Asaduzzaman Chowdhury Mohammad , Muhammad Nuruzzaman Dewan , Khalil Khaled , Lutfar Rahaman Mohammad 
Published: October 2011

PurposeSolid thin films have been deposited on stainless steel 314 (SS 314) substrates in a chemical vapor deposition (CVD) reactor at different flow rates of natural gas mostly methane (CH4). The purpose of this paper was to investigate experimentally the variation of thin film deposition rate with the variation of gas flow rate.Design/methodology/approachDuring experiment, the effect of gap between activation heater and substrate on the deposition rate has also been observed. To do so, a hot filament thermal CVD unit is used. The flow rate of natural gas varies from 0.5 to 2 l/min at normal temperature and pressure and the gap between activation heater and substrate varies from 4 to 6.5 mm.FindingsResults show that deposition rate on SS 314 increases with the increase of gas flow rate. It is also seen that deposition rate increases with the decrease of gap between activation heater and substrate within the observed range. These results are analyzed by dimensional analysis to correlate the deposition rate with gas flow rate, surface roughness and film thickness. In addition, friction coefficient and wear rate of SS 314 sliding against SS 304 under different normal loads are also investigated before and after deposition. The obtained results reveal that the values of friction coefficient and wear rate are lower after deposition than that of before deposition.Originality/valueIn this study, thin film deposition rate on SS 314 was investigated using CVD. The obtained results were analyzed by dimensional analysis to correlate the deposition rate with gas flow rate, surface roughness and film thickness. The friction coefficient and wear rate of SS 314 were also examined before and after deposition.
Using TiO2 nanofluid additive for engine lubrication oil
Authors: Wu Yuh‐Yih , Kao Mu‐Jung 
Published: October 2011

PurposeNanoparticles have been studied as additives to lubrication oils for reducing friction and wear. The purpose of this paper is to investigate the effect of nanofluid on engine oil and friction reduction in a real engine.Design/methodology/approachThe nanoparticles were prepared using a high‐temperature arc in a vacuum chamber to vaporize the Ti metal, and then condensed into a dispersant to form the TiO2 nanofluid, which was used as lubricant additive. Experiments were performed in both real engine running and test rig.FindingsIt was found that the engine oil with nanofluid additive with an ethylene glycol dispersant of nanoparticles, had gelled after 10‐h of engine running. The problem of oil gelation (jelly‐like) was solved by replacing the dispersant with paraffin oil. The engine oil with TiO2 nanoparticle additive exhibited lower friction force as compared to the original oil. The experiment showed that a smaller particle size exhibits better friction reduction with particle size ranging from 59 to 220 nm.Research limitations/implicationsThe paper is restricted to findings based on the dispersed nanoparticles in fluid as additive for engine lubrication oil.Practical implicationsThe test results are useful for the application of nanofluid additive for engine oil.Originality/valueMost previous researches in this field were executed on tribotester, rather than the actual engine. This paper describes experimental methods and equipment designed to investigate the application of TiO2 nanofluid as lubricant additive in internal combustion engine.
Multi‐steps synthesis and properties of tetraurea grease
Authors: Lei Liu , Hongwei Sun 
Published: October 2011

PurposeModern technology is giving some new requirements for the lubricating grease, and there are also some weaknesses for the existing diurea grease, especially its lower anti‐shear stability. This paper aims to address this issue. In this work, in order to meet the new industrial requirements and improve the weaknesses of diurea grease, the tetraurea grease has been synthesized.Design/methodology/approachTetraurea grease was synthesized by multi‐steps, characterized by FT‐IR, NMR, ESI‐MS. The properties were evaluated by the ASTM method, such as dropping point, penetration, oil separation and shear stability, as well as four‐ball machine experiment.FindingsThe result shows that tetraurea grease is indeed synthesized successfully and it has a better performance than the existing diurea grease, the main properties of it have been increased, such as high‐temperature performance, structural stability, anti‐shear stability and extreme pressure performance.Originality/valueThis enriches the kinds of polyurea grease. Enhanced lubricating grease performance would have better industrial prospects, and a larger application field than existing diurea grease.
A perspective on effective mentoring in the construction industry
Authors: Hoffmeister Krista , Cigularov Konstantin P. , Sampson Julie , Rosecrance John C. , Chen Peter Y. 
Published: October 2011

PurposeThe present study aims to provide a perspective on effective mentoring in the construction industry by examining key mentor characteristics as perceived by construction professionals.Design/methodology/approachA total of 170 union construction workers rated 55 mentor characteristics based on to what extent each was characteristic of a superior, average, or poor mentor.FindingsTo identify the most important mentor characteristics, three criteria were relied on: means of characteristic ratings of a superior mentor; effect sizes of mean differences between ratings of poor and superior mentors; and correlations between characteristic ratings of superior mentors and satisfaction with mentors. Significant mean differences were found between characteristics of poor and average mentors as well as between poor and superior mentors.Research limitations/implicationsPossible future directions include an investigation of the relationship between competent mentors and personal characteristics, and potential health and safety outcomes resulting from effective mentoring in the construction industry.Originality/valueAlthough mentoring has been the focus of much research, the mentoring relationship is quite different in the construction industry and little mentoring research has targeted this industry. To develop an effective mentoring program in this industry, one of the initial steps is to identify characteristics of effective mentors in this industry.
Bridge leadership: a case study of leadership in a bridging organization
Authors: McMullen Ronald S. , Adobor Henry 
Published: October 2011

PurposeThe purpose of this research is to examine leadership in an intermediary organization whose mission is to facilitate collaboration between large corporations and their smaller suppliers, a bridging organization.Design/methodology/approachA qualitative approach using a single case revelatory method was adopted. Data were collected from a bridge leader as well as 20 executives of companies involved in the collaboration.FindingsThe analysis revealed that the successful bridge leader tended: to build personal relations and goodwill as a way of creating personal obligations on the part of the stakeholders he led; championed the cause of the stakeholders and made their mission his/her own; created opportunities for individual and collective goal achievement; relied on symbolic behavior and ceremonies to reify the bridge mission; and engaged in frequent communication with a liberal use of humor and playfulness to make goals embraceable by the stakeholders in the collaboration.Research limitations/implicationsThis is a single case study and that limits the generalization of these findings. However, the findings provide some preliminary evidence to show that a lack of control of resources need not be a reason for leader non‐performance.Practical implicationsA bridge leader may substitute other influence strategies to compensate for the lack of direct positional power.Originality/valueThis study is one of the few that explicitly examines leadership in bridging organizations. The paper's understanding of this phenomenon is important because of the importance of bridging organizations to business and social innovation.
Assembly of 3D micro‐components: a review of recent research
Authors: Bogue Robert 
Published: October 2011

PurposeThe purpose of this paper is to review recent developments in micro‐scale assembly technologies, primarily in the context of microsystems based on three‐dimensional (3D) micro‐electromechanical systems (MEMS) and micro‐opto‐electromechanical systems (MOEMS) technologies.Design/methodology/approachFollowing a brief introduction, this paper first discusses the problems associated with the assembly of micro‐components and then considers the role of robots and self‐assembly technologies. This is followed by a brief summary and conclusion.FindingsExperimental robotic systems have been developed and used for the assembly of a wide range of MEMS and MOEMS components. Various self‐assembly technologies offer prospects for massively parallel microassembly but have yet to achieve the success of the robotic approach. Some work has sought to combine the best feature of both approaches but as yet, no technologies have been developed that can rapidly, accurately and cost‐effectively assemble micro‐components into hybrid 3D MEMS/MOEMS devices in a true production environment.Originality/valueThis paper provides a detailed review of recent progress in the robotic and self‐assembly of micro‐components.
Automation meets logistics at the Promat Show and demonstrates faster packing and order filling
Authors: Bloss Richard 
Published: October 2011

PurposeThe purpose of this paper is to review the Promat Show (material handling) and the Automate Show (robots and vision) run jointly in Chicago with emphasis on new automation innovations for packing and order filling applications.Design/methodology/approachIn‐depth interviews with exhibitors of material handling automation which addresses packing and order filling.FindingsMobile robots have come of age with multiple vendors offering units for handling goods. Delta robots have found a niche in quick handling of packing and order assembly.Practical implicationsCustomers will have to begin thinking of mobile robots as much more autonomous and self‐guiding for goods handling in the warehouse. Logistics customers need to examine the abilities of the delta style robot to do more and faster picking and packing than ever before.Originality/valueThe paper provides an expert insight into how automation innovation continues to reduce cost, improve accuracy and speed of logistics and order filling.
The Bionic Handling Assistant: a success story of additive manufacturing
Authors: Grzesiak Andrzej , Becker Ralf , Verl Alexander 
Published: October 2011

PurposeThis review will describe the development of the Bionic Handling Assistant as well as the additive manufacturing (AM) process of robot grippers and its possibilities.Design/methodology/approachAM offers the chance to use the additive processes to produce highly flexible automation parts and systems as the Bionic Handling Assistant in small and medium quantities that can utilize a lot of design advantages provided by the process.FindingsA lot of products of today and especially tomorrow could be produced by rapid manufacturing. New categories of products, such as the Bionic Handling Assistant, will occur.Originality/valueIn the paper, aspects of a visionary scenario for future productions are shown and demonstrated on the Bionic Handling Assistant.