T R I B O L O G Y & L U B R I C A T I O N T E C H N O L O G Y W W W . S T L E . O R G wide range of approaches have been undertaken to determine how to reduce emissions from automotive engines. in a previous TLT article, the development of the homogeneous charge compression ignition (hCCi) engine was discussed. When used in place of a conventional gasoline engine, an hCCi engine can produce a 1...

BACKGROUND Methods for error analysis are suitable to increase patients' safety as well as staff satisfaction and may avoid, in a sense of process control, financial damage to the hospital. The aim of the presented pilot study was to establish and evaluate an incident reporting system as a first step towards a new safety culture. METHODS In June 2003 an incident reporting system was introduce...

Stricter regulations imposed on emissions are motivating the scientific community to consider studying alternative fuels achieve low emission, high efficient dual-fuel (DF) marine engines. In this context, three dimensional computational fluid dynamic (CFD) simulations performed study combustion and emission formation under two-stroke, engine-like conditions. The DF engine configuration consist...

global air pollution is a serious threat caused by excessive use of fossil fuels for transportation. despite the fact that diesel fuel is a big environmental pollutant as it contains different hydrocarbons, sulphur and crude oil residues, it is yet regarded as a highly critical fuel due to its wide applications. nowadays, biodiesel as a renewable additive is blended with diesel fuel to achieve ...

A pilot study is one of the essential stages in a research project. This paper aims to describe the importance of and steps involved in executing a pilot study by using an example of a descriptive study in primary care. The process of testing the feasibility of the project proposal, recruitment of subjects, research tool and data analysis was reported. We conclude that a pilot study is necessar...

"This article reviews the experience of two pilot projects in Bangladesh that have addressed the question of how [operations] research can be designed to foster its utilization. In a rural field experiment [begun in 1972] in Matlab subdistrict, research has demonstrated that contraceptive services, if carefully designed and properly implemented, can influence demographic dynamics even where so...

Colecta-PALM is a Web-based application delivered on PDAs that provides behavioral messaging based on risk assessment responses for HIV patients. Usability testing was undertaken with 15 people living with HIV.AIDS (PWLHA) in two clinics in Lima. Sixty percent (9/15) were somewhat/very satisfied with Colecta-PALM, with usefulness rated 3.7/5. Users found the tool innovative, interesting, easy t...

One of the key roles of a junior doctor is co-ordinating the care of their patients and communicating with different departments or specialties within the hospital. To do this, junior doctors often spend a lot of time on a daily basis contacting the hospital switchboard in order to locate a required bleep/extension/fax number, or trying to navigate an intranet based directory which can be diffi...

BACKGROUND Community service-learning (CSL) has been proposed as one way to enrich medical and dental students' sense of social responsibility toward people who are marginalized in society. AIM We developed and implemented a new CSL option in the integrated medical/dental curriculum and assessed its educational impact. METHODS Focus groups, individual open-ended interviews, and a survey wer...