Air pollution is one of the major issues about the diesel engines in todays' world. It is a special concern in those areas that have difficulty meeting health-based outdoor air quality standards. Natural gas has low emission and resource abundance and also conventional compression ignition engine can be easily converted to a dual fuel mode to use natural gas as main fuel and diesel as pilot ...

Uncertainties in the collection and assessment of scientific information make ambient air quality standard setting difficult. Uncertainties occur in the estimation of the medical parameters under test due to the inherent random variability encountered in sampling the parameters. The most common method of dealing with random variability is statistical significance testing. The main caution offer...

A comparison was made between the National Institute of Standards and Technology (NIST) and Ente per le Nuove Tecnologie l'Energia e l'Ambiente (ENEA) air kerma standards for medium energy x rays and 60Co gamma rays. The comparison took place at ENEA in June 1994. Two different transfer chambers from NIST were used for the comparison. The measurements were made at radiation qualities similar to...

High cleanliness of a hospital environment is necessary to ensure safe working conditions for the medical staff, a correct process of hospitalization and to protect hospital visitors, an aspect rarely mentioned. A supply of air cleaned in highly-effective air filters to hospital wards with air conditioning systems and exhaust of infected air will help in maintaining the required standards of cl...

Introduction: Air pollutants and respiratory diseases have a significant relationship and cause major health problems. Low attention has been paid to the daily hospital admissions due to the presence of pollutants in desert cities such as Yazd city, Iran. Therefore, this study aimed to investigate the short-term relationship between air pollution and daily hospital admissions due to respiratory...

objective(s): variation in microsatellite sequences that are dispersed in the genome has been linked to a deficiency in cellular mismatch repair system and defects in several genes of this system are involved in carcinogenesis. our aim in this study was to illustrate microsatellite dna alteration in esophageal cancer. materials and methods: dna was extracted from formalin fixed paraffin embedde...

both midazolam and thiopental sodium are being used as induction agents and for maintenance of anesthesia. in contrast to other benzodiazepines such as diazepam, midazolam has a rapid onset of action and fast distribution and causes few cardiovascular or respiratory effects. being water soluble, midazolam is also associated with a low incidence of venous irritation. the purpose of this study wa...

banks play important roles in promoting national development. in order to provide efficient services and to perform their statutory roles effectively, banks are required to comply with established standards. in nigeria, the statement of accounting standards (sas), companies and allied matters act (cama) and the central bank of nigeria’s directives and regulations provide guidelines to banks in ...

A new technique for determining the resonance frequency (f0) of four-terminal-pair air-dielectric capacitance standards is discussed. The resonance frequency is determined by measuring four parameters of the capacitance standards over a range of frequencies near f0. These parameters are the two-terminal-pair impedance coefficients as defined in an impedance matrix. From a knowledge of the four-...