Ralph H. Jansen, Cheryl L. Bowman, Sean Clarke, David Avanesian, Paula J. Dempsey and Rodger W. Dyson
This paper aims to review national aeronautics and space administration (NASA’s) broad investments in electrified aircraft propulsion (EAP). NASA investments are guided by an…
Abstract
Purpose
This paper aims to review national aeronautics and space administration (NASA’s) broad investments in electrified aircraft propulsion (EAP). NASA investments are guided by an assessment of potential market impacts, technical key performance parameters, and technology readiness attained through a combination of studies, enabling fundamental research and flight research.
Design/methodology/approach
The impact of EAP varies by market and NASA is considering three markets as follows: national/international, on-demand mobility and short-haul regional air transport. Technical advances in key areas have been made that indicate EAP is a viable technology. Flight research is underway to demonstrate integrated solutions and inform standards and certification processes.
Findings
A key finding is that sufficient technical advances in key areas have been made, which indicate EAP is a viable technology for aircraft. Significant progress has been made to reduce EAP adoption barriers and further work is needed to transition the technology to a commercial product and improve the technology, so it is applicable to large transonic aircraft.
Practical implications
Significant progress has been made to reduce EAP adoption barriers and further work is needed to transition the technology to a commercial product and improve the technology, so it is applicable to large transonic aircraft.
Originality/value
This paper will review the activities of the hybrid gas-electric subproject of the Advanced Air Transport Technology Project, the Revolutionary Vertical Lift Technology Project and the X-57 Flight Demonstration Project, and discuss the potential EAP benefits for commercial and military applications. This paper focuses on the vehicle-related activities, however, there are related NASA activities in air space management and vehicle autonomy activities, as well as a breakthrough technology project called the Convergent Aeronautics Solutions Project. The target audience is people interested in EAP.
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Aarhus Kommunes Biblioteker (Teknisk Bibliotek), Ingerslevs Plads 7, Aarhus, Denmark. Representative: V. NEDERGAARD PEDERSEN (Librarian).
One can easily see that there is abundant opportunity for the introduction of harmful impurities unless every care is taken to avoid contamination due to impure ingredients or by…
Abstract
One can easily see that there is abundant opportunity for the introduction of harmful impurities unless every care is taken to avoid contamination due to impure ingredients or by metals, if used, in the plant. The Departmental Committee already referred to considered that the maximum permissible quantity of arsenic in any colouring substance used for food purposes should be 1/100th of a grain a pound, and that the total amount of lead, copper, tin and zinc should not exceed 20 parts per million. Thus a dyestuff should be of a high degree of purity in spite of the fact that it is only added in very small proportions to food. In America the Food and Drug Authorities issue certificates for each batch of dyestuff after it has passed thorough physiological and chemical tests. There is no doubt that if such tests were carried out in this country by officially appointed chemists and physiologists the health of the community would be more securely safeguarded from the possible ill effects of ingested dyestuffs. Under the present system it is apparently no one's business to detect the presence of harmful colours in food other than those actually prohibited, for obviously such work does not come within the scope of the Public Analyst. My last point is concerning the labelling of food containing added colouring matter. It has already been seen that colours are very frequently added to conceal inferior quality, or to simulate a valuable ingredient which is not actually present in the food. Therefore, in my opinion, the presence of added colouring matter should definitely be declared to the purchaser either by a label attached to the article or by a notice displayed in the shop. Such a declaration would help to counteract unfair competition. It is true that the Departmental Committee reported that “If a list of permitted colours is prepared in the way we have suggested, we do not think that, as far as health considerations are concerned, a declaration of their use need be required.” It is obvious that the Committee made that recommendation from health reasons alone and did not take into account cases where colour was added to conceal inferior quality. The food laws of this country lag far behind those of some others, and the tightening up of legislation in this respect is overdue. It is interesting to note that the following countries make the declaration of added colours to some or all types of food compulsory: The United States of America, Canada, New Zealand, Australia, Germany, Italy and France. Argentina takes a bold stand and prohibits absolutely the use of artificial colours in food, only harmless natural colours in certain instances are allowed. In America a food is not covered by a declaration of the addition of colouring if it is added to make the food appear of better quality or of greater value than it is. Also in America the labels of compound food such as confectionery must have a list of the quantities of the separate ingredients, exemption being allowed where there is of necessity insufficient space on the label to accommodate all the statements and information required. Unpacked confectionery, owing to the difficulty of labelling satisfactorily, is exempt. It has been remarked that a certain proposed label for use in America looked like a newspaper, and even the Readers' Digest could not condense it! Still, I feel sure that the intelligent purchaser would far rather have too much information, if that is possible, regarding the quality of the food he eats rather than too little, and those who, owing to lack of knowledge, are less discriminating in their choice of food, need to be protected. In conclusion, then, in my view, there is no objection to the artificial colouring of food provided that the colouring agent employed has no adverse effect upon the human organism, that it is not added to imply superior quality or to otherwise deceive, and that its presence, where practicable, is declared to the purchaser.
David W. Brannon and Ralf Burbach
Purpose: We generally ascribe hospitality industry talent shortages to organisations competing for dwindling talent rather than their inability to sustain industry talent pools…
Abstract
Purpose: We generally ascribe hospitality industry talent shortages to organisations competing for dwindling talent rather than their inability to sustain industry talent pools. This chapter suggests that developing sustainable talent management and development (STMD) initiatives can address the talent attraction and retention issues the industry is facing. Following Ostrom’s (2002) design principles, we advocate for sustainable common pool resource networks as a solution for developing durable STMD initiatives to address talent shortages within the hospitality industry.
Methodology: A conceptual chapter synthesising disparate theories in a new context.
Findings: Despite hospitality organisations’ continued investment in talent management, talent shortages remain systematically embedded within the industry. These are the result of a perennial competition among hospitality firms for talent, when, instead, these firms should engage in collective efforts to sustain industry talent pools. The adoption of a more sustainable approach by incorporating Ostrom’s (2002) design principles to establish long-lasting common talent pool resource in the form of industry rather than firm-level talent pools may halt the decline in available talent.
Research Limitation/Implications: While hospitality organisations have a vested interest in sustainably managing talent, limited attention has been paid to creating sustainable industry talent pools. We propose several design principles for developing durable STMD initiatives, which require empirical testing.
Practical/Social Implications: We address talent shortages for hospitality organisations by offering the blueprint for developing sustainable industry talent pools for a collection of firms, which, on their own, would lack the experience and resources to securing a steady supply of talent. In addition, industry talent pools also have the potential to improve the general working conditions for employees in this industry pool.
Originality/Value of Chapter: This chapter addresses hospitality industry talent shortages by proposing the creation of sustainable regional industry talent pools rather than focussing on firm-level talent management practices.
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It has often been said that a great part of the strength of Aslib lies in the fact that it brings together those whose experience has been gained in many widely differing fields…
Abstract
It has often been said that a great part of the strength of Aslib lies in the fact that it brings together those whose experience has been gained in many widely differing fields but who have a common interest in the means by which information may be collected and disseminated to the greatest advantage. Lists of its members have, therefore, a more than ordinary value since they present, in miniature, a cross‐section of institutions and individuals who share this special interest.
According to Truth the War Office has selected Mr. C. C. DUNCAN, F.I.C., the Public Analyst for the County of Worcester, for a special post, in which “ he will be responsible for…
Abstract
According to Truth the War Office has selected Mr. C. C. DUNCAN, F.I.C., the Public Analyst for the County of Worcester, for a special post, in which “ he will be responsible for the examination of the water supply for the troops.” “It might be supposed,” our contemporary observes, “that the services of this scientific expert would be worth at least the pay of a Captain. The War Office thinks differently. It is giving Mr. Duncan the pay of a private soldier, a piece of parsimony in no wise excused by the fact that the difference between his military pay and his regular salary will be made up by the Worcestershire County Council.” It appears that MR. DUNCAN has been selected for the post in question on the recommendation of a body described by Truth as “ The Institute of Analysts.” As no such body exists we presume that either the Institute of Chemistry or the cumbrously‐named “ Society of Public Analysts and Other Analytical Chemists” is referred to. It would be interesting to know what the Councils of either or both of these concerns have got to say about the treatment of this member of the profession which they are supposed to represent and whose dignity and interests they are supposed to maintain. The monstrous advertisement issued by the Woolwich Arsenal authorities about a year ago in which scientific chemists with University degrees were invited to apply for appointments at the munificent remuneration of £2 per week is a sufficient illustration of the value put upon scientific attainments by Government Departments in this country. But even this example of fatuous ignorance and inane parsimony has been eclipsed by the present arrangements for the employment of scientific chemists in the Royal Engineers, in which they are invited to enlist with the rank of Corporal and with Corporal's pay and “allowances.” The sulphuric acid scandal recently exposed by The Globe makes it once more abundantly clear that where scientific advice even of an elementary kind is needed no attempt is made to obtain reliable guidance. The wrong people are invariably applied to for advice and the wrong men are appointed to fill responsible posts. The following remarks appear in The Globe of September 23rd :—“We have evidence of the incompetence of the High Explosives Department which thought it fitting to appoint as the comptroller of the shipment of oleum” (i.e., a form of sulphuric acid shipped from America) “a young man, wholly inexperienced, at a handsome salary, his only qualification apparently being that he was the son of his father. This young man was completely ignorant of the properties of oleum. His first introduction to the acid was when he was called upon to advise as to the best method of shipment.” According to the facts stated in The Globe the result of this bungling has been a loss of some hundreds of thousands of pounds to the taxpayers of this country.
Discusses ICANN (Internet Corporation for Assigned Names and Numbers), which is a new private corporation for managing Internet domain names and IP addresses, which was created in…
Abstract
Discusses ICANN (Internet Corporation for Assigned Names and Numbers), which is a new private corporation for managing Internet domain names and IP addresses, which was created in the USA and produces a historical and conceptual assessment of the policy involved.
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Kenneth J. Cameron and Michael Roberts
A review of the main financial trends in Scottish universitylibraries during the 1980s. Updates a previous study in 1986 by the sameauthors on this topic, covering the…
Abstract
A review of the main financial trends in Scottish university libraries during the 1980s. Updates a previous study in 1986 by the same authors on this topic, covering the post‐Robbins era. Methodology based upon the use of published statistical sources, together with library annual reports. Examines the declining proportion of university finance devoted to libraries. Within the libraries′ budgets investigates the cumulative transfer of resources away from traditional collection building and staffing complements in favour of mushrooming services and automation requirements, in a period of vastly increasing clienteles, usage and demand. Spotlights various co‐operative ventures instigated by the Scottish academic library community to help meet the challenge. Argues that the decline in overall funding and continued transfer of resources from collections to services cannot proceed indefinitely if Scottish universities are to function effectively in an age of information‐hunger and accelerated growth in student numbers.
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Hari Govind Mishra, Shailesh Pandita, Aasif Ali Bhat, Ram Kumar Mishra and Sonali Sharma
The purpose of this paper is to review the diversified existing literature on tourism and carbon emissions using bibliometric analysis to churn down the multiple studies under one…
Abstract
Purpose
The purpose of this paper is to review the diversified existing literature on tourism and carbon emissions using bibliometric analysis to churn down the multiple studies under one paper, which not only provides insights into the evolution and progress of the research area but also sets the future research agenda.
Design/methodology/approach
The study adopted the Scientometrics review methodology based on the bibliometric analysis. Bibliometric analysis is conducted through the following techniques, namely, citation analysis, thematic mapping, country collaboration, co-citation analysis and co-occurrence of keywords with the help of R-based bibliometrix and visualization of similarities (VOS) viewer open-source software.
Findings
The study identified the most prominent authors, studies, journals, affiliations and countries in the field of sustainable tourism, as well as the most co-cited authors and journals, based on a bibliometric analysis of 398 research papers retrieved from the Scopus database during the past three decades (1990–2021). Moreover, some of the relevant themes identified by the authors are energy use and carbon dioxide (CO2) emission of the tourism sector, economic impacts of tourism and CO2 emissions and CO2 emissions and carbon tax.
Originality/value
The outcome of the selected studies is a unique contribution to the field of sustainable tourism as it is one of the first known studies to review tourism and carbon emissions. It provides in-depth bibliometric analysis of articles and identification of the important research trends.