bluuebunny/crossref_metadata_2025_split huggingface dataset:
The inhibition action of tyrosine on the corrosion of low chromium steel in 7 wt percent sulfamic acid
Authors: Tawfik M. Abdel‐Fatah Hesham 
Published: December 2011

PurposeThe purpose of this paper is to carry out laboratory studies of the inhibition effect of tyrosine (Tyr) on the corrosion of low chromium alloy steel (ASTM A213 grade T22) in 7 wt percent sulfamic acid solutions.Design/methodology/approachThe corrosion inhibitive effect of Tyr was investigated using electrochemical impedance spectroscopy (EIS) and the new technique electrochemical frequency modulation (EFM).FindingsIt was found that the inhibition efficiency increased with increasing inhibitor concentration, while a decrease was detected with the rise of temperature and stirring speed. The corrosion inhibition is due to physical adsorption of Tyr on the steel surface. Adsorption of the inhibitor molecule, onto the steel surface follows the Temkin's adsorption isotherm.Originality/valueThe obtained results from both methods (EIS and EFM) at different experimental conditions were in high agreement and almost similar. This is an indication that the EFM technique can be used efficiently for monitoring the corrosion inhibition under the studied conditions.
Critical success factors for Lean Six Sigma programmes: a view from middle management
Authors: Manville Graham , Greatbanks Richard , Krishnasamy Radica , Parker David W. 
Published: December 2011

PurposeMany organisations are operating in a dynamic competitive environment and experiencing increasing competition. As a result organisations in the service sector are continually seeking opportunities to remove waste and improve performance. Six sigma has been embraced by the service sector and is receiving increasing attention within both academe and practice. The purpose of this paper is to evaluate lean six sigma from a middle managers' perspective.Design/methodology/approachA mixed method approach was adopted involving a structured survey to 200 managers and semi‐structured interviews with two of the management team.FindingsThe paper highlights the importance of developing learning capabilities in the middle management team and the empowering of them. A greater role should be given to middle management in performance improvement and strategy formulation.Research limitations/implicationsThe research findings only apply to one case so it is difficult to make assumptions across different sectors. More research is required with regard to change management in lean six sigma implementations.Originality/valueThis paper shows that developing dynamic capabilities in middle management along with a learning culture will facilitate participation in strategy formulation.
Six Sigma, quality management systems and the development of organisational learning capability
Authors: Malik Ashish , Blumenfeld Stephen 
Published: December 2011

PurposeThis paper analyses the impact of Lean Six Sigma and a firm's quality management capabilities in developing its organisational learning capability (OLC), especially in the business process outsourcing (BPO) environment of a developing country.Design/methodology/approachUsing a multiple case study incorporating embedded design, findings from four Indian BPO firms are analysed.FindingsFindings confirm the critical and relatively unexplored role that firms' Lean Six Sigma and quality management capabilities play in developing OLCs.Research limitations/implicationsOwing to its qualitative case study design, findings from this study are not able to be generalised to the wider population, instead, the findings are generalised to relevant theory for future development.Originality/valueThe above relationship is examined in a novel research setting and the study also looks at which elements of Six Sigma and TQM content, if not well developed, hinder the development of OLCs.
Lean production supply chain management as driver towards enhancing product quality and business performance
Authors: Agus Arawati , Shukri Hajinoor Mohd 
Published: December 2011

PurposeThe purpose of this paper is to obtain a better understanding of the extent to which lean production permeates manufacturing companies in Malaysia by drawing on supply chain management (SCM) managers' or production managers' perception of lean production practices and level of performances in the industry.Design/methodology/approachThe instrument used in this study is a structured survey questionnaire consisting of two major parts. The first part comprises several variables measuring lean production practices, and the second part consists of several performance measurements. Sample companies are chosen from Malaysian manufacturing companies listed in the Federation of Malaysian Manufacturers directory. From the 300 companies sampled, 200 responses were completed, representing a 67 per cent response rate.FindingsThe results support the conceptual model, demonstrating strong association between lean production, product quality performance, and business performance. The structural equation modelling (SEM) results reveal that “reduced setup time” appears to be of primary importance in the linkage between lean production, product quality performance and business performance. It is also instructive, from a score of 67.21 on the Malaysian Lean Production Index (MLPI), that manufacturing companies in Malaysia must marshal their effort to implement a more effective lean production SCM in order to improve on product quality performance and business performance.Practical implicationsThis research adds to the body of knowledge on lean production SCM in manufacturing industry. This paper may be of particular interest to practicing production managers, or SCM managers, as it suggests what factors should be emphasized in lean production.Originality/valueThe originality of this paper lies within the context in which this study is undertaken as it seeks to address key relationships between lean production, product quality performance and business performance within the Malaysian manufacturing industry, where relatively few studies are available. In addition, relationships between constructs are analyzed through SEM that measures not only magnitude but also the causal direction of the relationships.
Short‐lived information and order strategies: a clinical study
Authors: Lei Adam Y.C. , Li Huihua 
Published: December 2011

PurposeThe purpose of this paper is to examine the order strategies of investors, in particular their use of intermarket sweep orders (ISOs), in response to a short‐lived information event.Design/methodology/approachThis paper uses a natural experiment on September 8, 2008, in which a 2002 bankruptcy story of United Airlines erroneously reappears through Bloomberg terminals and cause significant price changes on the stock. The authors first provide the background information of this natural experiment and use bootstrapping methods and regression analyses to examine investors' use of intermarket sweep orders.FindingsThe results show that investors use intermarket sweep orders, a unique type of liquidity‐demanding limit orders, in attempts to exploit their short‐lived information. In particular, those investors show aggressiveness not only in trade speed but also in trade size. These findings support the hypothesis that investors with short‐lived information demand immediacy to conserve the value of their information.Research limitations/implicationsThe results suggest that investors on the demand side of liquidity dynamically trade off the potential adverse impact of trade‐throughs with the speed their trades are executed. How limit order traders on the supply side or liquidity suppliers in general adjust to the demand‐side dynamics remains a future research direction.Practical implicationsThis paper highlights the fragility of information transmission in financial markets and suggests that the use of intermarket sweep orders could possibly magnify the impacts of erroneous information.Originality/valueUsing a natural experiment, this paper provides the first piece of empirical evidence on the use of intermarket sweep orders when investors possess short‐lived information.
The economic determinants of compensation committee quality
Authors: Sun Jerry , Cahan Steven F. 
Published: December 2011

PurposeThe purpose of this paper is to investigate the economic determinants of compensation committee quality.Design/methodology/approachSample firms were selected from the IRRC Directors' database. Compensation committee quality is measured as the factor score from a principal component analysis of six compensation committee characteristics. Regression analyses are conducted to test the hypotheses.FindingsIt was found that firms with lower CEO influence, less institutional shareholders, fewer growth opportunities, and that are smaller in size are more likely to have high quality compensation committees.Practical implicationsThe results imply that even in the presence of a requirement to have only independent directors on the compensation committee, the quality of compensation committees can vary cross‐sectionally depending on the firm's economic circumstances. Thus, a one‐size fits all solution for compensation committee quality might not be optimal as different firms have different incentives in composing their compensation committees.Originality/valueThis paper adds to the limited literature on compensation committees by using a new measure of compensation committee quality to examine the economic factors that affect the governance quality of independent compensation committees. This paper also complements the board and audit committee research by examining whether the same factors that affect board and audit committee quality might also affect compensation committee quality.
Momentum anomaly: evidence from India
Authors: Ansari Valeed Ahmad , Khan Soha 
Published: December 2011

PurposeThis paper aims to examine the presence of momentum profit in the Indian stock market and seeks to explore the sources of momentum profit employing both risk based and behavioral models. R2, idiosyncratic volatility, and delay measures are employed in order to test behavioral models.Design/methodology/approachThe paper follows Jegadeesh and Timan's methodology in constructing momentum portfolios.FindingsThe study finds strong presence of momentum profits in India during 1995‐2006. The risk based models such as CAPM and Fama‐French fail to account for the phenomenon. Idiosyncratic risk exhibits a positive relation with momentum, lending support to behavioural factors as source of momentum phenomenon.Practical implicationsIn forming portfolios, selecting the stocks which have been winners in the last three and six months can help investors and fund mangers earn substantial profit.Originality/valueThe study employs behavioral variables to explain the momentum phenomenon. In the Indian context it is an unexplored area.
Informal screencasting: results of a customer‐satisfaction survey with a convenience sample
Authors: Bailey Jody 
Published: December 2011

PurposeThe purpose of this paper is to define and describe informal screencasting (i.e. capturing your actions on a computer screen with the goal of showing others how to accomplish tasks on a website or in a given software environment). Customer‐satisfaction survey results from 103 faculty, staff, and students are presented.Design/methodology/approachAn online survey revealing customer satisfaction with informal screencasts was made available in Spring 2010 to faculty, staff, and students of a mid‐sized public university in Arlington, Texas, USA. Results are compiled, analyzed, and presented here.FindingsMost participants' reactions to the librarian's informal screencasts were positive or quite positive, but many participants still noted that they would prefer to receive e‐mail instructions in answer to their questions.Research limitations/implicationsThe survey was not distributed to a representative sample of the population; instead, the author solicited participants via e‐mail, so the participant pool was a convenience sample, which could introduce bias in the results.Originality/valueThis survey is the first to assess academic library customers' attitudes toward informal screencasting as an instructional tool, as far as the author has been able to determine after an extensive literature search.
LibraryPalooza: a marketing case study
Authors: Lee Anderson Carol 
Published: December 2011

PurposeThe purpose of this paper is to examine the elements of a successful marketing and outreach event for undergraduate students at a medium‐sized US research university.Design/methodology/approachA case study of LibraryPalooza, an annual event held at the University at Albany since 2004, and attended by 1,500 students in 2010.FindingsDetailed planning and extensive partnerships on campus make for a successful and relatively inexpensive welcome event for new students, introducing them to library services and facilities.Originality/valueThis paper provides a practical example of planning a major event marketing library resources to user constituencies.
LILAC Conference 2011
Authors: Glass Bob 
Published: December 2011

PurposeThe purpose of this paper is to provide a flavour of the content of the LILAC Conference held in London, UK in April 2011.Design/methodology/approachThis paper provides an outline of the content of the LILAC Conference, noting the key themes. The keynote speakers focused on the topics of the digital transition, school librarians and international indicators of information literacy.FindingsThe conference involved over 70 papers and workshops covering both the theoretical and the practical, with delivery running over the three days of the conference in five parallel sessions.Originality/valueThe conference provided an insight into the developing trends for information literacy.
Synthesis and characterization of poly(styrene‐co‐maleic anhydride) modified pyridine polyesteramide coating from sustainable resource
Authors: Alam Manawwer , Al‐Aandis Naser 
Published: December 2011

PurposeThe purpose of this paper is to develop pyridine polyesteramide coatings from Linseed (Linum ussitatissimum) seeds oil for the utilisation of a sustainable resource as coating material, as well as to improve the coating properties.Design/methodology/approachLinseed oil was first converted into N,N bis 2‐hydroxyethyl linseed oil fatty amide (HELA). The resin was synthesized by the reaction of linseed oil fatty amide diol with 2,3‐pyridine di carboxylic acid to develop pyridine polyesteramide (Py‐PEA) and further treated with poly(styrene‐co‐maleic anhydride)(SMA) in different phr (part per hundred part of resin). The structural elucidation of Py‐PEA was carried out by FT‐IR, 1H‐NMR and 13C‐NMR spectral techniques. The thermal stability and curing behaviour of the resin were determined by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively. The physico‐mechanical and anticorrosive properties were investigated by standard laboratory methods.FindingsThe authors developed a good anticorrosive coating material from sustainable resource. The physico‐mechanical and anticorrosive performance evaluation exhibited satisfactory results. The approach facilitated curing to occur at ambient temperature and the thermal studies revealed that Py‐PEA‐SMA‐45 might be safely used up to 140°C.Practical implicationsPoly(styrene‐co‐maleic anhydride) modified pyridine polyesteramide coatings showed the highest scratch hardness 3.0 kg, flexibility (1/8 inch canonical mandrel bend test) and gloss at 45° is 62‐64. Among all, Py‐PEA‐SMA 45 showed the best physico‐mechanical and chemical resistance performance. Thus, the resin may be used as an effective coating material.Originality/valueThe paper shows that the synthesis of polyesteramide resin from vegetable oil provides a new way to utilize a renewable resource based raw material.
Copolymers of carbazoles and methyl ethyl ketone formaldehyde resin
Authors: Ustamehmetoğlu Belkis , Akar Ahmet , Kizilcan Nilgun , Kelleboz Eda 
Published: December 2011

PurposeThe purpose of this paper is to develop the soluble and processable conducting copolymers of carbazole (Cz), ethylcarbazole (ECz), N‐vinylcarbazole (NVCz) by oxidatively polymerising carbazoles by ceric ammonium nitrate (CAN) in the presence of methyl ethyl ketone formaldehyde resin (MEKF‐R); and to report the advantages of obtaining copolymer structure.Design/methodology/approachA new class of soluble and conductive P(Cz/MEKF‐R), P(NVCz/MEKF‐R) and P(ECz/MEKF‐R) copolymers were synthesised by the method of oxidative polymerisation with ceric ammonium nitrate. MEKF‐R, CAN and carbazole monomers (Cz, NVCz and ECz) were dissolved in acetonitrile separately. Then, the CAN solution was added dropwise into the mixture of MEKF‐R and Cz, NVCz or ECz solutions while stirring and a green powder was formed almost instantaneously. After one hour stirring at 25°C, the powder was filtered, washed with acetonitrile and dried at room temperature. A green coloured product was obtained. The colourless insulator copolymer present in this product was separated by selectively dissolving with toluene. The insoluble green copolymer was filtered off and dried at room temperature under vacuum. The products were characterised by FTIR, DSC thermograms, 1H‐NMR, four‐point probe conductivity and atomic absorption measurements.FindingsThe solubility and conductivity of the Cz/MEKF‐R copolymer P(Cz/MEKF‐R), the NVCz/MEKF‐R copolymer P(NVCz/MEKF‐R) and the ECz/MEKF‐R copolymer P(ECz/MEKF‐R) were regulated by the ratios of (Cz, NVCz, ECz)/CAN/MEKF‐R. By inclusion of the ketonic resin segments to the polycarbazole chains, thermally processable copolymers have been obtained with a melting point of about 80°C. FT‐IR results in different reaction time and the presence of metal in copolymers show together a complex between monomer‐metal and resin.Research limitations/implicationsThis study focuses on obtaining conductive, soluble and processable copolymers. Since the ketonic resin is an insulator, in order to obtain both conductive and totally soluble polymer, successively regulating the ratios of (Cz, NVCz, ECz)/CAN/MEKF‐R is necessary.Practical implicationsThis work provides technical information for the synthesis of conducting and totally soluble copolymer.Originality/valueThe conductive P(Cz/MEKF‐R), P(NVCz/MEKF‐R) and P(ECz/MEKF‐R) copolymers obtained by the method of oxidative polymerisation with ceric ammonium nitrate, which are totally soluble in DMF, could only be produced with this method and may increase the area of application of the carbazole polymers.
Library 2.011 World‐wide Virtual Conference, “The Future of Libraries in the Digital Age”, November 2‐4, 2011
Authors: Wang Minglu 
Published: December 2011

PurposeThe purpose of this paper is to present a conference report on the unique organizational features and the common themes found among the three keynote speeches of the Library 2.011 World Wide Virtual Conference held on the internet on November 2‐4, 2011.Design/methodology/approachThis report was generated based on the author’s personal participation and observation of a virtual conference and a descriptive method was used to report on and summarize the major subjects of three keynote presentations.FindingsThe paper finds that Library 2.0 is still a live practice among libraries, and the concept itself has become an inspiring theoretical starting point for re‐examining information profession, information literacy, and information management behaviours.Originality/valueThis article sorts out the theoretical directions of Library 2.0’s research, which will provide a reflective and guiding tool for evaluating current library practice and designing future innovative library services.
Ritz‐Galerkin method with Bernstein polynomial basis for finding the product solution form of heat equation with non‐classic boundary conditions
Authors: Yousefi S.A. , Barikbin Zahra , Dehghan Mehdi 
Published: December 2011

PurposeThe purpose of this paper is to implement the Ritz‐Galerkin method in Bernstein polynomial basis to give approximation solution of a parabolic partial differential equation with non‐local boundary conditions.Design/methodology/approachThe properties of Bernstein polynomial and Ritz‐Galerkin method are first presented, then the Ritz‐Galerkin method is utilized to reduce the given parabolic partial differential equation to the solution of algebraic equations. Illustrative examples are included to demonstrate the validity and applicability of the new technique.FindingsThe authors applied the method presented in this paper and solved three test problems.Originality/valueThis is the first time that the Ritz‐Galerkin method in Bernstein polynomial basis is employed to solve the model investigated in the current paper.
Effect of turbine inlet temperature on rotor blade tip leakage flow and heat transfer
Authors: In Kim Sung , Rahman Hamidur , Hassan Ibrahim 
Published: December 2011

PurposeOne of the most critical gas turbine engine components, the rotor blade tip and casing, is exposed to high thermal load. It becomes a significant design challenge to protect the turbine materials from this severe situation. The purpose of this paper is to study numerically the effect of turbine inlet temperature on the tip leakage flow structure and heat transfer.Design/methodology/approachIn this paper, the effect of turbine inlet temperature on the tip leakage flow structure and heat transfer has been studied numerically. Uniform low (LTIT: 444 K) and high (HTIT: 800 K) turbine inlet temperature, as well as non‐uniform inlet temperature have been considered.FindingsThe results showed the higher turbine inlet temperature yields the higher velocity and temperature variations in the leakage flow aerodynamics and heat transfer. For a given turbine geometry and on‐design operating conditions, the turbine power output can be increased by 1.33 times, when the turbine inlet temperature increases 1.80 times. Whereas the averaged heat fluxes on the casing and the blade tip become 2.71 and 2.82 times larger, respectively. Therefore, about 2.8 times larger cooling capacity is required to keep the same turbine material temperature. Furthermore, the maximum heat flux on the blade tip of high turbine inlet temperature case reaches up to 3.348 times larger than that of LTIT case. The effect of the interaction of stator and rotor on heat transfer features is also explored using unsteady simulations. The non‐uniform turbine inlet temperature enhances the heat flux fluctuation on the blade tip and casing.Originality/valueThe increase of turbine inlet temperature is usually proposed to achieve the higher turbine efficiency and the higher turbine power output. However, it has not been reported how much the heat transfer into the blade tip and casing increases with the increased turbine inlet temperature. This paper investigates the heat transfer distributions on the rotor blade tip and casing, associated with the tip leakage flow under high and low turbine inlet temperatures, as well as non‐uniform temperature distribution.