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Using a simple test‐problem, we compare numerical results for the stationary semiconductor device continuity equation for electrons, obtained by the well known Box‐scheme, by Zlamal's Finite Element and by van Welij's Finite Element scheme as well as by two new discretization schemes. To interpret these results a classification of the considered schemes is proposed.

This study aims to synthesize Prussian blue {Fe^III₄[Fe^II(CN)₆]₃} pigment by reacting ferric chloride with different ferrocyanides through the same procedure. The influence of the ferrocyanide used on resulting pigment properties is studied.

Prussian blue is commonly synthesized by direct or indirect methods, through iron salt and ferrocyanide/ferricyanide reactions. In this study, the direct, single-step process was pursued by dropwise addition of the ferrocyanide into ferric chloride (both as aqueous solutions). Two batches – (K-PB) and (Na-PB) – were prepared by using potassium ferrocyanide and sodium ferrocyanide, respectively. The development of pigment was confirmed by an identification test and characterized by spectroscopic techniques. Pigment properties were determined, and light fastness was observed for acrylic emulsion films incorporating dispersed pigment.

The two pigments differed mainly in elemental detection owing to the dissimilar ferrocyanide being used; IR spectroscopy where only (Na-PB) showed peaks indicating water molecules; and bleeding tendency where (K-PB) was water soluble whereas (Na-PB) was not. The pigment exhibited remarkable blue colour and good bleeding resistance in several solvents and showed no fading in 24 h of light exposure though oil absorption values were high.

This article is a comparative study of Prussian blue pigment properties obtained using different ferrocyanides. The dissimilarity in the extent of water solubility will influence potential applications as a colourant in paints and inks. K-PB would be advantageous in aqueous formulations to confer a blue colour without any dispersing aid but unfavourable in systems where other coats are water-based due to their bleeding tendency.

The purpose of this paper is to develop a computational model for the simulation of heterojunction organic photovoltaic devices with a specific application to a light harvesting capacitor (LHC) consisting of a double layer of organic materials connected in series with two insulating layers and an external resistive load.

The model is based on a coupled system of nonlinear partial and ordinary differential equations describing current flow throughout the external resistive load as the result of exciton generation in the bulk, exciton dissociation into bonded pairs at the acceptor-donor material interface, and electron/hole charge generation and drift-diffusion transport in the two device materials.

Numerical simulation results are shown to be in good agreement with measured on-off transient currents and allow for novel insight on the microscopical phenomena which affect the external LHC performance, in particular, the widely different time scales at which such phenomena occur and their relation to the overall device dynamics.

The LHC demonstrates the viability of a novel approach for converting light energy into an electric current without a steady state flow of free charge carriers through the semiconducting layers. The new insight about the microscopic working principles that determine the macroscopically observed behavior of the LHC obtained via the model proposed in this paper are expected to serve as a basis for studying techniques for exploiting the full potential of the LHC.

OCLC has developed a CD‐ROM‐based system for the storage, distribution, and retrieval of documents. The system stores an ASCII copy of the text of the original document. It also stores page make‐up and font definition codes. These codes are used to control an inexpensive laser printer in the production of copies that closely resemble the original document. The authors discuss trends in the information equipment and printing industries that will govern the future application of this technology.

Copper and nickel 1,8 binaphthalocyanines were prepared by the urea fusion method. The proposed structure of these compounds was confirmed via micro‐analytical, volumetric and spectrophotometry methods. The prepared binaphthalocyanines compounds showed excellent pigmentary properties on evaluating them according to specific international standard methods.

The purpose of this paper is to analyze research works on air pollution published in 2005-2014 and indexed in Web of Science Core Collection.

The data of research publications on “air pollution” from the Web of Science Core Collection database were collected with following search strategy: publications with terms “Air contaminat*”, “Air pollut*”, “pollut* air” or “contaminat* air” in their titles for the period of 2005-2014 were collected. A total of 4,424 articles were published on air pollution during the period of 2005-2014, and the data were used for creation of database in Microsoft Excel for the analysis purpose. Bibliometric analysis techniques were applied wherever necessary.

Out of 4,424 articles published on air pollution in different languages, 4,276 articles were in English. The years 2013 and 2014 showed rapid increase in number of articles published, 563 and 638, respectively. The increased number of articles resulted in an increase in number of pages published and references cited in the articles. The articles published in the year 2006 had received more number of citations (12,318), and the average citation per article for the period was 17.59. Environmental Science was the major Web of Science subject category under which a greater number of articles were published. Article entitled as “Health effects of fine particulate air pollution: Lines that connect”, published in Journal of The Air & Waste Management Association by Pope and Dockery (2006), was the highest cited article (1,743) for the period, and the top most active journals that published huge number of articles were Atmospheric Environment and Environmental Health Perspective, with 11.79 per cent of the total articles (4,424) published.

The findings of the study are limited to the journals covered under Web of Science Core Collection database and articles having the following keywords in their titles: “Air contaminat*”, “Air pollut*”, “pollut* air” or “contaminat* air”.

This study would be useful to researchers and policy makers to get an insight into the research trends of air pollution for effective decision-making and formulation of new research proposals.

The purpose of this paper is to explore the possibilities of workplace democracy in contemporary organisations. While organisational democracy is a popular theme in contemporary management literature, it is often asserted that participatory democracy is impractical and thus representative forms of governance constitute a more appealing and “realistic” option. Such views not only fail to picture workplace democracy beyond procedural principles (e.g. periodical elections), but they also block one of its promising features: its openness to change. In this context, direct democracy that is guided by horizontality and prefiguration may offer more promising grounds in the search for workplace democracy.

The paper exposes the contradictions and limits of representative democracy and traces the debates around hierarchism and horizontality, size and democracy with the aim to focus on its core theme – workplace democracy.

This paper argues that although representative democracy is considered a “realistic” alternative to hierarchical forms of governance it, in fact, reproduces and legitimizes hierarchism. Therefore, organisations can effectively coordinate collective action, without representatives and strict hierarchical structures, by giving emphasis to decentralized networks guided by horizontality and prefiguration.

The paper shows that the current demands for workplace democracy through representation constrains one's imagination of organisational democracy and therefore, one's perception of workplace democracy has to be broadened and radicalized by giving emphasis not only to who rules but also to the process of governance, that is, how to rule.

Collaborative arts incorporate theatrical elements including sound, movement, text, design, technology and visual elements into a synthetic original form of art. This paper examines a sub-category of collaborative arts, New Music Theater, in the contemporary context from the 1980s onwards in Hong Kong.

Interviews with artists Kung Chi Shing, Steve Hui and Amy Chan exhibit their personal creative and collaborative experiences.

These interviews provide a view of the current practice of New Music Theater in Hong Kong.

This paper highlights the emergence of a new art form in Hong Kong and fills a gap in the relevant literature.

Cobalt, Nickel and Copper hexaazabiphthalocyanine were prepared by the reaction of pyridine 2,3‐dicarboxylic acid anhydride, pyromillitic acid dianhydride, with urea and metal salt in presence of ammonium molybdate catalyst. The reaction is carried out in an inert solvent [nitrobenzene]. The structure of the prepared compound was confirmed by microanalytical and pectrophotometric methods. Evaluation of the highly coloured products according to international standard methods showed their suitability as excellent pigments for coating applications.

Sensing systems with microprocessor control have to be divided into several levels of sensing system architecture. Here a sensing system based on transit and state functions is examined together with a modular approach to sensing system architecture. An arc welding robot with a sensor is taken as an example.