Search results

1 – 10 of 51
To view the access options for this content please click here
Article
Publication date: 1 January 1991

KAMEL M. AL‐KHALIL, THEO G. JR. KEITH and KENNETH J. DE WITT

The hydrodynamics and thermal characteristics of a laminar rivulet flow down a vertical surface are investigated. The velocity distribution within a rivulet is determined…

Abstract

The hydrodynamics and thermal characteristics of a laminar rivulet flow down a vertical surface are investigated. The velocity distribution within a rivulet is determined numerically by the use of a finite element method. In turn, a regression analysis is performed to fit the numerical data with an assumed closed form function. The breakup of a thin liquid film into rivulets is also considered. Heat transfer characteristics are determined. Nusselt numbers were obtained for the two cases of prescribed constant wall temperature and constant wall heat flux.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 1 no. 1
Type: Research Article
ISSN: 0961-5539

Keywords

To view the access options for this content please click here
Article
Publication date: 1 June 1992

KAMEL M. AL‐KHALIL, THEO G. JR. KEITH and KENNETH J. DE WITT

A numerical solution for ‘running wet’ aircraft anti‐icing systems is developed. The model includes breakup of the water film, which exists in regions of direct…

Abstract

A numerical solution for ‘running wet’ aircraft anti‐icing systems is developed. The model includes breakup of the water film, which exists in regions of direct impingement, into individual rivulets. The wetness factor distribution resulting from the film breakup and rivulet configuration on the surface are predicted in the numerical solution procedure. The solid wall is modelled as a multi‐layer structure and the anti‐icing system used is of the thermal type utilizing hot air and/or electrical heating elements embedded within the layers. Details of the calculation procedure and the methods used are presented.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 2 no. 6
Type: Research Article
ISSN: 0961-5539

Keywords

To view the access options for this content please click here
Book part
Publication date: 14 October 2010

Shimpei Iwasaki and Rajib Shaw

Chilika Lagoon is the largest brackishwater lagoon in the Indian subcontinent, situated at latitude 19°28′ and 19°54′ north and longitude 85°05′ and 85°38′ east (Fig. 2.1

Abstract

Chilika Lagoon is the largest brackishwater lagoon in the Indian subcontinent, situated at latitude 19°28′ and 19°54′ north and longitude 85°05′ and 85°38′ east (Fig. 2.1). The lagoon extends from the southwest corner of Puri and Khurdra districts to the adjoining Ganjam district of Orissa state. The pear-shaped lagoon is around 64.3km long and its width varies from 18to 5km. It is connected to the sea through irregular water channels with several small sandy and usually ephemeral islands (CDA, 2008). The average lagoon area is 1,055km2 which increases to 1,165km2 during the rainy season and shrinks to 906km2 during the summer season. Chilika Lagoon becomes less saline during the rainy season due to flood waters from 52 rivers and rivulets. It becomes more saline during the dry season as the supply of flood water is cut off when the south wind begins to blow and saline waters enter from the Bay of Bengal at high (Patro, 2001). The lagoon has three hydrologic subsystems (Mahanadi delta, western catchments, and the Bay of Bengal) influencing the hydrological regimes as shown in Fig. 2.1. The total inflow of freshwater from the Mahanadi delta has been estimated to be 4,912 million cubic meter, accounting for 80 percent of the total water flow. The maximum discharge of 3,182 million cubic meter comes from Makara River, followed by Bhargavi River (1,108 million cubic meter) and Luna River (428 million cubic meter) (CDA, 2008). Meanwhile, the western catchments account for 20 percent of the total fresh water flow.

Details

Integrated Lagoon Fisheries Management: Resource Dynamics and Adaptation
Type: Book
ISBN: 978-0-85724-164-1

To view the access options for this content please click here
Article
Publication date: 1 September 1967

R.H. Banfield

This article, to be published in two parts, is based on a lecture given by the author to the North‐Eastern Branch of the Institution of Corrosion Technology on 14 Feb…

Abstract

This article, to be published in two parts, is based on a lecture given by the author to the North‐Eastern Branch of the Institution of Corrosion Technology on 14 Feb. 1967 and to the London branch on 28 March 1967. Mr. Banfield is Corrosion and Materials officer in the Laporte Group of Companies.

Details

Anti-Corrosion Methods and Materials, vol. 14 no. 9
Type: Research Article
ISSN: 0003-5599

Content available
Article
Publication date: 26 July 2021

Roberto Pugliese, Guido Bortoluzzi and Marco Balzano

This study aims to enrich the current theoretical debate on the growth of start-up firms by extensively investigating the ongoing empirical studies in this research…

Abstract

Purpose

This study aims to enrich the current theoretical debate on the growth of start-up firms by extensively investigating the ongoing empirical studies in this research stream. Moreover, this study identifies drivers whose support roles are confirmed in the literature and recommends further research opportunities.

Design/methodology/approach

In this study, we analysed the results of 316 empirical studies on start-up firms and growth and also identified and categorised 66 growth drivers. We presented these drivers in three-dimensional charts: 1) the frequency of using each driver in the 316 studies, 2) the consistency of each driver as measured by the number of studies supporting its statistical significance and 3) the net effect (positive or negative) of each driver on growth.

Findings

Our analysis compares extant studies on growth drivers and shows some under-explored growth factors of start-up firms.

Practical implications

Both start-up managers and policymakers can benefit from this study. This study provided managers with a fine-grained tool on the main growth drivers and can guide policymakers in supporting policies for start-up firms.

Originality/value

This study provides a rich, fine-grained and coherent picture of several potential growth drivers of start-up firms. Moreover, we extended our analysis to various potential drivers more than previous studies on this topic, thereby providing fruitful insights into the critical growth factors for start-up firms.

Details

European Journal of Innovation Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1460-1060

Keywords

To view the access options for this content please click here
Article
Publication date: 11 November 2013

August Mohr

David Huffman, as a graduate student, earned his immortality by solving a problem that had stumped Claude Shannon, the creator of the field of information theory. How he…

Abstract

Purpose

David Huffman, as a graduate student, earned his immortality by solving a problem that had stumped Claude Shannon, the creator of the field of information theory. How he saw the problem differently and the nature of his discovery have implications for how we get stuck, how we get unstuck, and how the internal models limit the ability to see patterns in the world. The paper aims to discuss these issues.

Design/methodology/approach

This paper describes how Huffman discovered his elegant algorithm, why it had not been discovered previously, how the algorithm may relate to the attempt to find meaning in decision making, and generalises implications for problem solving and daily lives.

Findings

Huffman was only able to see the problem anew in the cathartic moment of abandoning it. The algorithm he discovered suggests that the concept of “meaning” was an obstacle in his process.

Practical implications

Huffman coding is one of the underpinnings of computer science. While it should be widely understood for that alone, the process of its discovery and its fundamental methodology are deeply instructional.

Originality/value

Alexander Pope said “As the twig is bent, so grows the tree”, a classic statement about conscious purpose and man's controlling nature. Huffman's algorithm suggests the real world works the other way around: “As the leaves are lit, so grows the tree”.

To view the access options for this content please click here
Book part
Publication date: 30 June 2011

Teresa Chataway

Norberto Bobbio's Birth Centenary was celebrated in Turin in October 2009. This article acknowledges an important 20th century legal philosopher whose work is yet to be…

Abstract

Norberto Bobbio's Birth Centenary was celebrated in Turin in October 2009. This article acknowledges an important 20th century legal philosopher whose work is yet to be fully appreciated in the Anglo-American context. A short introduction is followed by an overview of his works in English, and intellectual profile. Relevant excerpts aim to convey some understanding of his legal scholarship. Three exemplars of his contribution to law: jurisprudence, legal sociology and the general theory of law are discussed. It is argued that a Bobbian lens can be usefully employed to consider some of the pressing 21st century legal-political and social issues.

Details

Studies in Law, Politics, and Society
Type: Book
ISBN: 978-1-78052-080-3

To view the access options for this content please click here
Article
Publication date: 6 September 2021

Tarun Kumar Lohani, Melkamu Teshome Ayana, Abdella Kemal Mohammed, Mohammad Shabaz, Gaurav Dhiman and Vishal Jagota

Gaya, the holy city of Hindus, Buddhists and Jains, is facing an acute shortage of potable water. Although the city is blessed with some static and dynamic water bodies…

Abstract

Purpose

Gaya, the holy city of Hindus, Buddhists and Jains, is facing an acute shortage of potable water. Although the city is blessed with some static and dynamic water bodies all around the region, they do not fulfill the requirement of millions of public either inhabitants of the area or tourists or pilgrims flocking every day. Countless crowds, congested roads, swarming pedestrians, innumerable vehicles moving throughout the day and night have made the city into a non-livable one. The present status of surface water is a mere nightmare to the requirements of the people. Due to which, massive ground water pumping mostly illegally has added a grid in addition to the other socio-economic issues.

Design/methodology/approach

To focus on such problem, the ground water of the region was studied thoroughly by calculating the depth of water level, discharge, pre-and post-monsoon water table and specifically the storativity in ten different locations. Some data were acquired, others were assessed, and few are calculated to provide an overall view of the ground water scenario.

Findings

After a long and tedious field study, it was finally established from that static water level ranges from 2.45 to 26.59 m, below ground level (bgl), discharge varies from 3.21 m3/day to 109.32 m3/day. Post pumping drawdown falls between 0.93 m and 16.59 m, whereas the specific capacity lies in between 0.96 and 7.78 m3/hr/m. Transmissivity, which is a key objective to assess ground water potential ranges from 109.8 to 168.86 m2/day.

Originality/value

This research work is original.

Details

World Journal of Engineering, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1708-5284

Keywords

To view the access options for this content please click here
Expert briefing
Publication date: 15 April 2021

Bastar’s seven districts have for decades been the epicentre of a low-intensity conflict between the rebels and the Indian government. In October 2018, the then home…

Details

DOI: 10.1108/OXAN-DB260845

ISSN: 2633-304X

Keywords

Geographic
Topical
To view the access options for this content please click here

Abstract

Details

Mastering Business for Strategic Communicators
Type: Book
ISBN: 978-1-78714-503-0

1 – 10 of 51