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Analysis of Flow Through Roots Blower Systems

August 6, 2020March 9, 2018 by admin

ABSTRACT

Kinematic analysis of a Roots blower with involute flanks and circular root and tip sections is explained. The thermo-fluid model for the blower is described. Two mathematical models have been used to model the blower and its piping system. In the first model flow is assumed steady in the pipes,whereas In the second the unsteady flow in the pipes is taken into consideration. Leakage from the pressure side to the suction side of the blower is treated with a simple model.

The change of volumetricefficiency at different operating conditions is given. It is possible to investigate the property variations with time at different parts of the blower system with the computer program written.

Qualitative comparisons of the results with experimentalones are satisfactory.

Endorsements For Marketing Recyclable Materials

August 6, 2020March 9, 2018 by admin

Rerefined Engine Oil

Dear Sir or Madam,

Many thanks for your letter of 7th November to our department VSE/PB. We would like to comment on your questions as follows: For several years now we have used products which have a rerefined content as factory fill products for our passenger car engines. At certain times differing amounts of rerefined content were in use for various reasons.

If these rerefined oils are manufactured correctly, there is then no reason not to use them. We approved the use of rerefined engine oils for use in our engines decades ago. The requirement is, above all, that the rerefining process is perfect and the oils are alloyed correctly just like virgin base oils.

We check the performance of engine oils. It is left to the customer if he then uses a mineral oilbased, rerefined, synthetic, partly synthetic or hydro-cracked oil.

The U.S. Automotive Market and Industry in 2025

August 5, 2020March 9, 2018 by admin

Introduction

On May 19, 2009, President Obama announced a new national fuel economy program requiring an average fuel economy standard of 35.5 miles per gallon for new light vehicles sales by 2016. The plan overruled the Energy Independence and Security Act which was signed into law in December 2007 and increases the new fuel economy standard four years sooner than previously planned. On May 21, 2010 the President directed two government agencies, the U.S. Environmental Protection Agency (EPA) and the National Highway Traffic Safety Administration of the U.S. Department of Transportation (NHTSA), to start planning new fuel economy standard or levels of green house gas (GHG) emissions for 2017- 2025. On October 1, 2010, these two agencies took the first step by announcing their initial assessment, or Notice of Intent (NOI), for stringent standards for model year 2017-2025 vehicles. In a joint document, the Interim Joint Technical Assessment Report (TAR), the California Air Resources Board (CARB) and EPA/NHTSA proposed four GHG emission reduction scenarios...

“Protection” of Volunteers Under Federal Employment Law: Discouraging Voluntarism

August 5, 2020March 8, 2018 by admin

INTRODUCTION

In September 1990, the Department of Labor informed the Salvation Army that the participants in its down-and-out work-therapy program' were not "volunteers," but rather "employees" subject to the Fair Labor Standards Act's2 ("FLSA") minimum wage, overtime pay, and recordkeeping provisions. The Salvation Army, an employer of over 40,000 regular employees,7 commenced a federal lawsuit to enjoin the Labor Department's proposed action--an action that would have required the Salvation Army to pay standard wages to an estimated 70,000 participants who are enrolled in its work-therapy programs.9 The Labor Department, subjected to political pressure for singling out the reputable charity, 10 abandoned its plan to sue, and consequently the Salvation Army's action was dismissed." The dismissal of the suit, however, left the underlying conflict unresolved, reserving for a future date the question.

Economic Impact Analysis: The Potential Impact of an NHRA Drag Racing Facility in Lancaster County

August 5, 2020March 8, 2018 by admin

Entertainment venues are an important component to the quality of life in cities and states. Venues provide local residents with an opportunity to attend events that interest them without requiring them to travel to another city. This saves local residents money and allows residents to attend more events. Both factors increase the quality of life for local citizens, in much the same way that having more local shopping options raises the quality of life.

i Lincoln’s need for new entertainment venues to improve the quality of life and to retain or attract younger residents has been a recent topic of discussion in the city. For example, a new arena and other facilities have been discussed for the downtown area. This analysis considers another potential entertainment venue for the Lincoln area: a National Hot Rod Association (NHRA) Motorplex Facility. In particular, Nebraska Motorplex has recently proposed developing and operating a motorplex venue in Lancaster County. This analysis considers the annual economic impact of such a NHRA Motorplex Facility.

Sport Tourism: Factors Of Influence On Sport Event Visit Motivation

August 5, 2020March 8, 2018 by admin

Abstract

Tourism and sport are key elements of today’s culture and have a specific influence on the behaviour of society. Especially since the 1960’s sport has become a huge international matter with large amount of media attention, money and also political interest. On the other hand tourism remains the world’s largest industry as well as very developing and growing.

Within sport tourism the distinction between active participation and passive spectatorship is an essential difference. In this research a behavioural approach is taken towards the principal of sport event tourism. There has been a significant growth of sport event tourism over the years which provide certain tourists a lot of opportunities for whom watching sport has become a primary reason to travel. This development has encouraged the writer to examine the sport event tourist behaviour.

Consumer Decision-Making Models Within The Discipline Of Consumer Science: A Critical Approach

August 5, 2020March 8, 2018 by admin

INTRODUCTION

Consumer behaviour and consumer decision-making have become prominent research topics in the various fields of consumer science in recent years. Consumer science includes the former discipline of home economics and refers to a discipline that evolves around consumer behaviour and decision making concerning foods and nutrition, clothing and textiles, housing and interior merchandise in everyday living in order to meet basic and higher order needs for physical, psychological, sociopsychological and financial satisfaction in a complex micro and macro environment. Of specific importance is that buying and consumer decision making are complicated as a result of external influences that have to be handled within an internal frame of reference that has come about through consumer socialization (that may be/have been restricted). Consumer behaviour within the discipline of consumer science focuses on consumption behaviour where the humane aspect of decision making and purchasing is of major importance as opposed to buyer behaviour the domain of the...

What Drives College-Age Generation Y Consumers?

August 5, 2020March 7, 2018 by admin

Abstract

Generation Y (individuals ages 14–31 in 2008) are in the marketplace with the numbers and the purchasing power to have an unprecedented impact on the economy. Despite the potential of this group as a whole, especially the middle-aged members of this generation (ages 18–22) who are in the highly coveted college student market, much is unknown about the motivations behind these individuals' consumption behavior and preferences. This study attempts to address this gap in the literature by exploring the antecedents of the consumption behavior of college-aged Generation Y individuals. The findings indicate that issues relating to socialization, uncertainty reduction, reactance, self discrepancy, and feelings of accomplishment and connectedness drive Y consumers' product purchases and retail patronage. This article discusses these issues as well as their theoretical and managerial implications.

Communication Model for Sports Media Web Portals

August 5, 2020March 7, 2018 by admin

Abstract

This paper presents a proposal of digital mediation for enhancing the communication between sports media and its user community. The proposal is based on a conceptual model and a proof of concept in the form of a Web application. It is believed that the proposed application can contribute to enrich sports media Web portals with innovative features and to strengthen the relationship with their user community, exploiting the potential contributions of its members. This project also aims at fostering user participation and sharing of opinions in sports media Web portals.

1. Introduction

In recent times, uses of the Internet are becoming relatively more interactive and user-oriented. The Web 2.0 and more recently the rise of Social Media have not only created new playing fields for communication and self-expression but also new forms of social behavior....

Communication Research Trends: Centre for the Study of Communication and Culture

August 5, 2020March 7, 2018 by admin

I. Introduction

“Sports and the mass media enjoy a very symbiotic relationship in American society” (McChesney, 1989, p. 49). This statement holds true not only for the United States but also for most contemporary industrialized societies. The “very symbiotic relationship” between the media and sports has profoundly affected both participants. And the advertising industry forms an important part of the relationship. Both sports and mass media keep trying to reach people as spectators, fans, and consumers; both actively affect the audience as well as the advertising market (including the sponsors).

SPOT: Scheduling Programs Optimally for Television

August 11, 2020March 7, 2018 by admin

ABSTRACT

This paper introduces SPOT (Scheduling Programs Optimally for Television), an analytical model for optimal prime-time TV program scheduling. Due in part to the advent of new cable TV channels, the competition for viewer ratings has intensified substantially in recent years,and the revenues of the major networks have not kept pace with the costs of the programs. As profit margins decrease, the networks seek to improve their viewer ratings with innovative scheduling strategies. Our SPOT models for scheduling network programs combine predicted ratings for different combinations of prime-time schedules with a novel, mixed-integer, generalized network-based flow, mathematical programming model, which, when solved, provides an optimal schedule. In addition to historical performance, subjective inputs from actual network managers were used as input to the network flow optimization model. The optimization model is flexible.

Sports Broadcasting and Virtual Advertising: Defining the Limits of Copyright Law and the Law of Unfair Competition

August 11, 2020March 7, 2018 by admin

I. INTRODUCTION

Constant technological development has introduced another player in sports broadcasting: virtual advertising, a form of digital technology that allows advertisers to insert computer-generated brand names, logos or animated images into previously recorded television programs or movies. In sporting events, the advertisements can even be inserted live as the game is played, as seen in Superbowl XXXIV on January 31, 2000. This technology has been used since 1995, but has not experienced a major breakthrough yet. Several Major League Baseball (“MLB”) teams have made use of virtual advertisements along the wall behind home plate.’ Beginning this 2000 season, the technology will be used in a minimum of twenty Sunday Night baseball games. Some teams in the National Basketball Association (“NBA”) display virtual advertisements on their billboards on the sideline, while many collegiate conferences have already made use of virtual advertising in their regular season and tournament broadcasts.

Understanding Loyalty and Motivation of Professional Sports Fans

August 5, 2020March 6, 2018 by admin

Introduction

The common culture of the United States is characterized by the want for entertainment (Russell, 2009). The entertainment industry as a whole is typically broken down into segments of music, television and movies. While this constitutes a large portion of the annual revenue generated by leisure activities, it overlooks the billion dollar empire that is professional sports. It is estimated that the sports industry in its entirety is worth over $420 billion with roughly $20 billion of that coming from a combination of Major League Baseball (MLB), the National Football League (NFL) and the National Basketball Association (NBA) (Plunkett Research, Ltd., 2011). In addition to the revenue garnered by the teams, fans bring millions of dollars a year into cities hosting a game. The city of Indianapolis, for example, draws 250,000 fans for the three week celebration leading up to the Indianapolis 500 and sees an economic impact of approximately $40 million each time it hosts the National Collegiate Athletic Association’s...

Tackling The Digital Future Of Sports Journalism

August 5, 2020March 6, 2018 by admin

INTRODUCTION

People increasingly want more. More money, more time, more space. And it is no different with news. Audiences are expecting sports news on an as-it-happens-basis and, as digital technology continues to develop, that news is being readily presented. Not so long ago sports fans would have had to wait until the next day’s newspaper or the evening’s news broadcast, to find out the score of a sports match. Now, via a huge array of platforms, they can access the score, a match report, post-match comments, video highlights and every imaginable statistic almost as soon as the final whistle is blown. It’s telling of the age we are living in and the impact digital technology and, in particular, the internet, is having on traditional sports media. But what does it mean for sports journalists, sports journalism and the audience? The digital era is certainly presenting sports newsrooms with constant challenges. Not only is it...