Susheel Pandey, Rajeev Srivastava, Christ Prakash Paul, Arun Kumar Rai and Rakesh Narain
The aim of this paper is to study the effect of laser shock peening (LSP) on mechanical behaviour of the laser-directed energy deposition (LDED)-based printed 15-5 PH stainless…
Abstract
Purpose
The aim of this paper is to study the effect of laser shock peening (LSP) on mechanical behaviour of the laser-directed energy deposition (LDED)-based printed 15-5 PH stainless steel with U and V notches. The study specifically concentrates on the evaluation of effect of scan strategy, machining and LSP processing on microstructural, texture evolution and fatigue behaviour of LDED-printed 15-5 PH steel.
Design/methodology/approach
For LSP treatment, 15-5 PH steel was printed using LDED process with bidirectional scanning strategy (XX [θ = 0°) and XY [θ = 90°]) at optimised laser power of 600 W with a scanning speed of 300 mm/min and a powder feed rate of 3 g/min. Furthermore, LSP treatment was conducted on the V- and U-notched fatigue specimens extracted from LDED-built samples at laser energy of 3.5 J with a pulse width of 10 ns using laser spot diameter of 3 mm. Post to the LSP treatment, the surface roughness, fatigue life assessment and microstructural evolution analysis is performed. For this, different advanced characterisation techniques are used, such as scanning electron microscopy attached with electron backscatter diffraction for microstructure and texture, X-ray diffraction for residual stress (RS) and structure information, Vicker’s hardness tester for microhardness and universal testing machine for low-cycle fatigue.
Findings
It is observed that both scanning strategies during the LDED printing of 15-5 PH steel and laser peening have played significant role in fatigue life. Specimens with the XY printing strategy shows higher fatigue life as compared to XX with both U- and V-notched conditions. Furthermore, machining and LSP treatment led to a significant improvement of fatigue life for both scanning strategies with U and V notches. The extent of increase in fatigue life for both XX and XY scanning strategy with V notch is found to be higher than U notch after LSP treatment, though without LSP samples with U notch have a higher fatigue life. As fabricated sample is found to have the lowest fatigue life as compared to machines and laser peened with both scan strategies.
Originality/value
This study presents an innovative method to improve the fatigue life of 15-5 PH stainless steel by changing the microstructure, texture and RS with the adoption of a suitable scanning strategy, machining and LSP treatment as post-processing. The combination of preferred microstructure and compressive RS in LDED-printed 15-5 PH stainless steel achieved with a synergy between microstructure and RS, which is responsible to improve the fatigue life. This can be adopted for the futuristic application of LDED-printed 15-5 PH stainless steel for different applications in aerospace and other industries.
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Man has been seeking an ideal existence for a very long time. In this existence, justice, love, and peace are no longer words, but actual experiences. How ever, with the American…
Abstract
Man has been seeking an ideal existence for a very long time. In this existence, justice, love, and peace are no longer words, but actual experiences. How ever, with the American preemptive invasion and occupation of Afghanistan and Iraq and the subsequent prisoner abuse, such an existence seems to be farther and farther away from reality. The purpose of this work is to stop this dangerous trend by promoting justice, love, and peace through a change of the paradigm that is inconsistent with justice, love, and peace. The strong paradigm that created the strong nation like the U.S. and the strong man like George W. Bush have been the culprit, rather than the contributor, of the above three universal ideals. Thus, rather than justice, love, and peace, the strong paradigm resulted in in justice, hatred, and violence. In order to remove these three and related evils, what the world needs in the beginning of the third millenium is the weak paradigm. Through the acceptance of the latter paradigm, the golden mean or middle paradigm can be formulated, which is a synergy of the weak and the strong paradigm. In order to understand properly the meaning of these paradigms, however, some digression appears necessary.
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In the course of the St Paul year 2008 and 2009 Christians in the whole world are commemorating St Paul. This essay aims to trace the footsteps of St Paul and consider the success…
Abstract
Purpose
In the course of the St Paul year 2008 and 2009 Christians in the whole world are commemorating St Paul. This essay aims to trace the footsteps of St Paul and consider the success factors that every strategist needs to make people enthusiastic about a product or an idea and nevertheless behave in a sustainable and ethical manner.
Design/methodology/approach
The six key performance indicators/methods of St Paul of spreading the gospel are analysed (global presence, networking, customer segmentation, keep it simple, time based competition and integrity) and compared to current distribution strategies of sales people and analysts of customer behaviour.
Findings
St Paul was a very successful power seller, but, differing from many other nowadays power sellers (take Madoff), he was selling his product in an ethical way, because he himself was also deeply convinced of the product, i.e. Christianity. Sales people can learn from St Paul, that big ticket sale will only work in the long run if combined with ethical sales behaviour. If sales organisations do not believe in the products they sell, they are doomed to fail in the long term. The current credit crisis, which originated in the sales of bad products with good sounding names is a prominent example..
Practical implications
By comparing abstract processes like sales and distribution to historical figures and their actions, it is easier for management to grasp ideas. Furthermore, stories stick better in the head than numbers. Corporate storytelling like the story of St Paul can help executives to get a clear idea of a topic and – different from “empty flipchart brainstorming” – give a good basis for management offsites and workshops.
Originality/value
By using strategy metaphors, business strategists can stretch their thinking. Linking a non‐business topic (St Paul) to a business topic can help to view one's own business from a fresh perspective.
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When the Catholic bishops of the United States prepared the first draft of their pastoral letter on the US economy, they deliberately kept its contents confidential until after…
Abstract
When the Catholic bishops of the United States prepared the first draft of their pastoral letter on the US economy, they deliberately kept its contents confidential until after the presidential election of that year. They did not want it to intrude upon the campaign then under way. It was not made public until 11 November, 1984. The Lay Commission, chaired by William E. Simon, issued its document, Toward the Future: Catholic Social Thought and the US Economy, before the bishops' first draft but also after the presidential election. It was not a response to the bishops' then unseen document but an advisory counter‐proposal from a different perspective. The Lay Commission presumed that the two documents would be different certainly in the area of policy recommendations and in the evaluation of the performance of the American economy; they probably anticipated differences also in the understanding of Christian and Catholic tradition and principles. They were not wrong.
Jane Clatworthy, Joe Hinds and Paul M. Camic
The number of gardening-based mental health interventions is increasing, yet when the literature was last reviewed in 2003, limited evidence of their effectiveness was identified…
Abstract
Purpose
The number of gardening-based mental health interventions is increasing, yet when the literature was last reviewed in 2003, limited evidence of their effectiveness was identified. The purpose of this paper is to evaluate the current evidence-base for gardening-based mental health interventions and projects through examining their reported benefits and the quality of research in this field.
Design/methodology/approach
Studies evaluating the benefits of gardening-based interventions for adults experiencing mental health difficulties were identified through an electronic database search. Information on the content and theoretical foundations of the interventions, the identified benefits of the interventions and the study methodology was extracted and synthesised.
Findings
Ten papers published since 2003 met the inclusion criteria. All reported positive effects of gardening as a mental health intervention for service users, including reduced symptoms of depression and anxiety. Participants described a range of benefits across emotional, social, vocational, physical and spiritual domains. Overall the research was of a considerably higher quality than that reviewed in 2003, providing more convincing evidence in support of gardening-based interventions. However, none of the studies employed a randomised-controlled trial design.
Research limitations/implications
There is a need for further high-quality research in this field. It is important that adequate outcome measures are in place to evaluate existing gardening-based mental health interventions/projects effectively.
Originality/value
This paper provides an up-to-date critique of the evidence for gardening-based mental health interventions, highlighting their potential clinical value.
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Introduction On 15 May 1891 Pope Leo XIII issued what has become known as “the Great Social Encyclical”, Rerum Novarum: De Conditione Opificum; or, “Revolutionary Change: On the…
Abstract
Introduction On 15 May 1891 Pope Leo XIII issued what has become known as “the Great Social Encyclical”, Rerum Novarum: De Conditione Opificum; or, “Revolutionary Change: On the Condition of the Working Classes”. Forty years thereafter, Pope Pius XI issued the second GSE, Quadragesimo Anno: On the Restoration of the Social Order (15 May 1931); and, in a string of papal pronouncements (allocutions, encyclical epistles and letters, etc.) and related Vatican documents ranging from Pius XII's brief Sertum laetitiae (1 Nov. 1939) and Radio Address of Pentacost 1941 celebrating the 50th anniversary of RN, e.g. via John XXIII's Mater et Magistra and Pacem in Terris (1961; 1963), …, John Paul II's Laborem Exercens: On Human Work and Sollicitudo Rei Socialis: On Social Concern (1981; 1987), official “Social Catholicism” has continued to address itself to the so‐called “social question” over this near‐century. It is thus with some anticipation, and the prediction of a prominent US ordinary, that we await a major social encyclical letter on the 100th anniversary of Rerum Novarum, perhaps with the opening words and title, Centesimo Anno: On the Social Question Today.
Dinah Mathew, Hilary Brown, Paul Kingston, Claudine McCreadie and Janet Askham
This article reports the results of a survey of local authorities, which asked about progress in responding to the Department of Health guidance, No Secrets. The findings of the…
Abstract
This article reports the results of a survey of local authorities, which asked about progress in responding to the Department of Health guidance, No Secrets. The findings of the survey suggest that the majority of local authorities are taking action in response to the guidance. However, there is variation in progress with the different components of the framework for the protection of vulnerable adults outlined in No Secrets.
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Paul Christ and Rolph Anderson
The purpose of this paper is to bridge the glaring gap in the sales literature due to the deficiency of historical research on the adoption of technology in personal selling and…
Abstract
Purpose
The purpose of this paper is to bridge the glaring gap in the sales literature due to the deficiency of historical research on the adoption of technology in personal selling and the resultant impacts on sales roles.
Design/methodology/approach
This paper traces the early adoption of technology by the sales force through information obtained from an extensive review of published works covering a nearly 130‐year timeframe. Where possible, efforts are made to chronicle the early use of these technologies by citing examples from historical publications of applications in selling situations.
Findings
In the exciting internet era, it is often unrecognized that adopting the latest technology in selling is a long, ongoing process which can be traced back at least to the beginning of professional personal selling in the mid‐1800s when the industrial revolution enabled dramatic increases in manufactured products. A review of the literature suggests that sales forces were often early adopters of new technologies that laid the groundwork for taking on new or expanded sales roles. With each new invention and its creative adoption and adaption to selling, new sales roles have been created or ongoing ones expanded or significantly modified. Many of the roles still entrusted to today's sales force are arguably linked to a succession of technological adoptions that occurred between the 1850s and 1980s.
Originality/value
From a historical perspective, this paper examines sales force technology development from the 1850s through the 1980s and the resultant impacts on sales force roles. To date, this historic technology‐sales force role relationship has not been adequately recognized or addressed in the sale literature. The analyses presented in the present study should prove useful for academics, students, and practitioners in the sales and marketing fields as well as researchers examining business history.
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To examine control and accountability in an expressive organisation.
Abstract
Purpose
To examine control and accountability in an expressive organisation.
Design/methodology/approach
The paper was based upon a longitudinal case study of events in the Church of England from 1994 to 2001 and was based on documents, debates in the governing body, conversations and interviews and participants' observation.
Findings
As a response to a financial crisis a group of financiers from within the Evangelical theological tradition (which places stress on headship and control) proposed the creation of a new church governance body (a national council) with strongly integrated central control and severely diminished conciliar participation. This group described the complex church organisations and structures (disparagingly) as “a cats cradle of autonomous and semi autonomous organizations”. This conflicted with the values of the other covenant traditions (Anglo‐Catholic and Liberal). The new body was created, but the proposed centralised control was unraveled, the existing constitution and governance was maintained, the “cats cradle” was enriched within the ground metaphor of autonomy. The case shows how the loosely coupled nature of this expressive institution with its multiple theological (value and belief) stances and multiple organisations, relationships and accountabilities was almost impervious to the attempt to shift them into an ordered and controlled hierarchy.
Research limitations/implications
The great complexity of an ancient Church constrains the researcher to a limited account.
Practical implications
Change in expressive organisations happens by emergent negotiation and cannot be directed because the various value positions infuse everything.
Originality/value
The conception of control and accountability as being constructed and reconstructed in the interplay of the constructs of covenant, constitution and contract. This theorising may have a wider application both to expressive, public institutions and private organisations.