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AUTOMOTIVE engine designers will know that the oil film in a plain bearing system has three duties: it converts energy into heat, supports the load, and separates the relatively moving surfaces.

The purpose of this paper is to study the inhibitive effect of p‐toluene sulfonic acid (p‐TSA) doped polyaniline on corrosion of copper in 0.1 M hydrochloric acid (HCl) solution.

The electrochemical deposition of polyaniline doped with p‐TSA on pure copper metal was studied potentiodynamically. The electrochemical study of the working electrode was performed at open‐circuit potential, then using potentiodynamic polarization and also with electrochemical impedance spectroscopy in 0.1 M HCl solution. The p‐TSA doped polymer deposit was characterized using Fourier transform infrared spectroscopy, with the UV‐vis and thermogravimetric analysis/differential scanning calorimetry techniques. The morphology of the deposited polymer was studied by scanning electron microscopy.

The results revealed that the p‐TSA self‐doped polymer had better corrosion inhibition efficiency than did the un‐doped polyaniline. It exhibited approximately 88.9 percent inhibition efficiency at 2x10⁻³ M concentration of p‐TSA, according to charge transfer resistance (R_ct) values evaluated from Nyquist plots.

The high dissolution tendency of metal surfaces generally occurs before the electropolymerization potential of the monomer is achieved. It was difficult to electrodeposit the conducting organic polymer on the surface of metal.

Some organic conducting polymers are toxic and hazardous from the environmental viewpoint. The electrochemical deposition of p‐TSA doped polyaniline is impractical for larger structures.

The paper demonstrates that p‐TSA doped polyaniline is environmentally benign and can be used for the protection of copper metal as a cathodic inhibitor.

In 1933, Edward H. Chamberlin published the Theory of Monopolistic Competition (1962). The work, based upon a dissertation submitted for a PhD degree in Harvard University in 1927 and awarded the David A. Wells prize for 1927–28, has since become a milestone in the development of economic thought. Its impact on industrial organisation theory, general equilibrium and welfare economics, international trade theory and, to a greater or lesser degree, all other branches of economic analysis, has been pervasive and enduring. The ideas set out in the book have been developed, expanded and refined in ways too numerous to be identified precisely, and the books and articles which take Chamberlin's contribution as a starting point arguably exceed in number those on any other single subject in the lexicon of economics.

Mr. H H. Bagnall, B.Sc., F.I.C., Public Analyst for the City of Birmingham, comments in his annual report on the work done at the City laboratory and on the still apparent need for standards and definitions of food, and of legislation to enforce their application in manufacture or in shops. Of the 5,472 samples taken in the city under the Sale of Food and Drugs Acts 4 per cent. were found to be adulterated, but he observes that misdescription of articles of food is much more common than actual adulteration. The number of samples taken during the year was larger, and the variety greater, than in any previous year. About 140 different varieties of foods and drugs were examined, and few, if any, foods were not sampled. It was reassuring to learn that the Minister of Health was considering the introduction of legislation on the lines of the recommendations submitted in 1934 by the Departmental Committee which enquired into the working of the law as to the composition and description of articles of food other than milk. Ice‐cream was a case in point. In fifty‐one samples taken, the fat content varied between less than 2 per cent. and 19 per cent. Roughly, the samples were of two classes. Those containing less than 4 per cent. were bought mainly from carts in the streets of parks, and were probably the products of smaller makers; those with more than 8 per cent. were manufactured on a large scale by a few well‐known firms. “It is obvious something is wrong here,” Mr. Bagnall reports. “Apart from any question of price, ice cream is, or should be, a valuable article of food, and the purchaser should have some means of knowing what to expect when he asks for it. At the moment he may get a substance which approximates to frozen custard (not made with eggs !) or he may get a really first‐class product containing a considerable amount of cream. The position is similar with respect to a number of other products, particularly compounded articles; and the beneficial effect of legislation in such matters is clearly shown in the case of condensed and dried milks. This kind of governmental interference with manufacture used to be thought of as grandmotherly legislation; but, when one remembers the sort of statement, bearing no relation to the contents, that used to appear on tins of condensed milk, one cannot but feel that there may be some virtue in these departures from laisser‐faire methods. At any rate, no one would wish to return to the old haphazard days when condensed milk was simply what the manufacturers chose to make it. It is curious that the law is far more careful that the composition of feeding stuffs sold for the use of cattle should be made known to the purchaser than that articles sold for human consumption should be sold under a guarantee of quality. If I buy, say, cotton cake for feeding cows, the vendor is bound to give me an invoice stating the amounts of oil, protein and fibre contained in it, and severe penalties are entailed if false statements are made. If I buy an infant's food, however, there is no compulsion on the part of the maker to give particulars regarding its composition. In fact, the label may contain statements entirely at variance with the analysis, but which, nevertheless, are of too vague a character to become the subjects of police court proceedings. It is surely as important that the mother of a child should know something of the composition of the food she uses as that a farmer should know the food value of his cattle cakes, and it is to be hoped that legislation on such matters may not be unduly delayed. The misdescription of articles of food is a much more common thing than adulteration. Under modern conditions of inspection and sampling, it simply does not pay manufacturers and retailers to risk the cruder forms of adulteration and substitution, but the wide use of advertising as an aid to sales, often leads to the use of exaggerated statements regarding the quality and food value of articles of diet. We are all familiar with the extraordinary claims put forward on behalf of particular foods of well‐known composition which seek to show that they possess unique properties not shared by other similar foods. It is often impossible for the food analyst to check such statements, and the public is deceived into thinking that a superior article is being obtained. Often it is only in the advertisements relating to the article in question that one finds these exaggerated statements, and when a tin or packet is bought it is found that the label gives a much milder description of the contents. Under the present law only statements appearing on the label can be made the subject of legal proceedings. It is desirable that false claims appearing in advertisements should also be brought within the scope of food and drug legislation.” During the year a number of samples of pasteurised milk were examined by the “phosphatase test.” Of 112 samples, fifty‐eight were efficiently pasteurised; in thirty‐six cases some technical error had occurred during the process, such as imperfect temperature or time control, or a small admission of raw milk; and in the remaining eighteen cases there was evidence of gross negligence. The samples were taken at selected times and places thought likely to yield abnormal figures, so that too much weight should not be given to the fact that about 48 per cent. of the samples did not pass the test.”

According to The Ethics Centre (2018) ‘[T]he social license to operate (SLO) is made up of three components: legitimacy, credibility, and trust’. These three components serve to frame the relationship that has emerged and continues to evolve, its root arguably dating back to the Enlightenment and Post-industrial ages, between the worlds of capitalist commercial and industrial operations, and the liberal-democratic citizenry/consumers of society. The ‘SLO’, it will be shown, has historical grounding that indicate the SLO is a broader translatable concept not limited to the business realm. The SLO, the evidence will show, is a multifaceted concept not least, a unifying vehicle utilized for the purpose of acceptance, to advance normative concerns, and resistance, against questionable and harmful practices. Evidently, many domains of human services operate sub-optimally with less than favourable outcomes. In effect, this translates to structural injustices as characterized by poor understanding, insufficient standards of practice, ineffective safeguard, and governance institutions, perpetuated by entrenched practices, allowing the rise of mediocre service providers no less enabled by deficient regulation. Accordingly, the ethical focus of this paper is on the healthcare system, the evident and unnecessary deficiencies, and the failings of the central governance institutions involved. The underlying characteristics of what constitutes a SLO arguably, whether in name or not, have been engaged to expose, challenge, and repel, unethical conduct that gave rise to multiple health care-related Royal Commissions across Australia; predominantly, impacting the Disability, Aged Care, and Mental Health (DAM) sectors to name a few of recent times.

Examines the Internet’s potential for becoming an information highway. Defines the information highway and the Internet. Describes the characteristics of an information highway. The concept of an information highway puts some requirements on the infrastructure. The users of an information highway, who are located in the residential and business environment, have their share of requirements as well, but they focus on the requirements put forward by the services or applications they will use on an information highway. Checks whether the Internet has implemented these properties and how, or if work is going on to develop them. The framework for this discussion is the TCP/IP reference model. Places some emphasis on the IP next generation protocol, IP version 6 (IPv6). Provides an overview showing all the properties with an indication of how well the posed requirements are met. Concludes that the Internet certainly has potential for becoming an information highway.

Pervasive computing enhances the environment by embedding many computers that are gracefully integrated with human users. The purpose of this paper is to describe the creation of a smart context‐aware environment in which computation follows people and serves them everywhere. Building such smart environments is still difficult and complex due to lacking a uniform infrastructure that can adapt to diverse smart domains.

To address this problem, the paper proposes an agent‐based pluggable infrastructure which integrates a mobile agent system named pvMogent, establishes an ontology‐based context model and introduces a workflow‐based application model with the open services gateway initiative (OSGi) framework. By plugging corresponding domain context in ontology model and different applications, the infrastructure can be customized to various domains.

Through the implementation of several context‐aware applications, it was found that the infrastructure can largely reduce the development complexity as well as keep the domain extensibility by plugging corresponding domain context in ontology model.

In this paper, a number of key techniques are explored which are suitable for building context‐awareness. The experiences and lessons learned from the system development could further facilitate and inspire the research in this direction.

The purpose of this paper is to examine language, academic, social‐cultural and financial adjustments facing mainland Chinese students in Hong Kong.

The current study employed both quantitative and qualitative methods and included over 300 mainland Chinese students from seven major universities in Hong Kong. In addition to a survey questionnaire, in‐depth interviews were also conducted. Purposive and snowball sampling methods were used to recruit participants.

The findings indicate that though mainland Chinese students were satisfied with the quality of Hong Kong's higher education, many expressed that they were having language, academic, social and cultural, and financial challenges during their stay in Hong Kong. The results are consistent with the current literature to a large extent with some variations. Few differences were found by gender and between undergraduate and graduate students.

Two thirds of the sample was undergraduate students and only one third graduate students. Future research may want to include an equal number of participants from both groups to get a more balanced view. In addition, since the sample of our sub‐degree students was very small, generalization to this group will be inappropriate. Future studies are needed to explore the unique challenges facing these mainland Chinese students who are pursuing their sub‐degree in Hong Kong.

Most of the current research is limited to mainland Chinese students studying in Western countries, such as the USA, the UK and Australia. Few studies to date examine adjustment problems of mainland Chinese students studying in Hong Kong. There is a need, therefore, to deepen our understanding of the major adjustment issues experienced by these mainland Chinese students in Hong Kong.