Archives-J 

Concern of environmental pollution and energy crisis all over the world have caused the research attention on reduction of diesel engine exhaust emissions and saving of energy simultaneously. An experimental study has been carried out for combined effect of Exhaust Gas Recirculation (EGR) system and varying inlet air pressure on performance and emission of diesel engine. As we know that the diesel engine are known for their high NOx formation and Exhaust Gas Recirculation (EGR) is being used widely to reduce and control the oxides of nitrogen (NOx) emission from diesel engines.

The present investigation makes an attempt to study the modulus of elasticity of concrete , concrete in which M-sand is used as a partial and full replacement for natural sand. E is an important parameter reflecting the ability of concrete to deform elastically.M20 and M25 grade of concrete was investigated by replacing natural sand by M-sand at replacement levels of 25%, 50%, 75%, sand 100%. The results revealed that there is an increase in the value modulus of elasticity of concrete as the percentage of m sand increases also it is observed that the stress-strain behavior exhibits non-linear variation

Biomass is currently considered as an emerging technology to develop ecological sources of energy. Several studies have shown that and it is feasible to use biomass in concrete production. This paper presents results about the characterisation of the biomass rice husk ash (RHA) derived from combustion of an agricultural solid residue rice husk. The implementation of biomass in concrete will indirectly advance the renewable energy production and the economic development by decreasing CO2 emission from cement industry and saving energy as well. The results also indicate that up to 20% of RHA incorporation could be advantageously blended with cement without adversely affecting the strength properties of concrete.

Electro polishing is defined as anodic corrosion. The issue of the effects of corrosion on structural integrity of metal surfaces has been a question of concern for some time. The uses of chemical corrosion inhibitors are common in production and processing operations. Nevertheless, the challenge is to develop a new class of corrosion inhibitors to protect the materials, due to the economic importance of copper there are several researches deals with acceleration and inhibition of this process. In this paper the electropolishing process inhibited with different ratio by the addition of some organic alcohols (methanol, ethanol,propanol, and isopropanol) by addition with concentration (2, 5, 10, 15, 20, 25 and 30 %) .The results reveal that these organic alcohols have a strongest inhibitive effect ranging from8. 7 – 53.8 % and the thermodynamic parameters were present.

By appearing information age and the promotion of interpersonal relationships and the manifest of strategic organizational, the emotional intelligence hypothesis have had a remarkable growth and became one of the popular organizational major. Emotional intelligence is a comprehensive expression including extensive collection of skills and personal specifications which is above certain scope of previous knowledge like technical or professional skills. The influence of emotional intelligence on conflict management strategies of Sepah bank managers has been assessed in current paper. The results of applying Spearman test show there are positive and meaningful correlations between emotional intelligence with conflict management strategies and its dimensions apart from avoidance strategy in which the relation was negative. Also the results of applying Friedman test illustrate that among dimensions of conflict management strategies, “avoidance strategy”, “solution-based strategy” and “control strategy” were chosen as the most important ones. By using Chi Square test the relationship between managers’ demographic characteristics and conflict management strategies was surveyed in which there was positive and meaningful correlation between their age, gender and educational level with conflict management strategies. Finally Binomial test shows that all variables apart from solution-based strategy were placed in favorable levels.

Family is an institution on one hand with the larger community and interact directly with other person in the relationship. It is important to the extent that some experts are considered to suppose it as a fundamental pillar of society and the realization of a healthy society depends on achieving a healthy family feel. Marital satisfaction is one of the essential factors in family stability and of the mental health of spouses and children as well as society. Several factors caused spouse to be satisfied in a marital relationship. Marital adjustment influences on many aspects of human life, individual and social. Regarding to the importance of this field of research methods, techniques and survey questionnaire sought answers to this question’’ what are the social factors influencing the conflict of spouses in Guilan-e-Gharb? Study sample are the married in Guilan-e-Gharb which number of 378 samples were analyzed. In order to answer the main question, this study is to analyze the relationship between variables such as fatalism, psychological well-being, family income, age of spouses during marriage as independent variables and conflict of spouses as the dependent variable. The results suggest that, there is significant relationship between psychological well-being variables, family income, and the age difference between spouses marriage duration with spouse conflict. There is no relationship between fatalism and conflicts between spouses.

A number of 5-Phenyl-1,2,4-triazolo[4,3-a]-quinazolin-6-ones(3), 3-(2,4-dichlorophenoxymethyl)-1,2,4-triazolo-[4,3-a]-quinazolin-6-ones(4) and 5-phenyl-3-mercapto - 1,2,4-triazolo-[4,3-a] -quinazolin-6-ones (5). These title compounds have been prepared by reaction of 2-hydrazino-3-phenyl-4-quinazolone (2) with formic acid, methoxy phenyl acetic acids and carbon disulphide respectively. These compounds have been evaluated for their fungicidal activity against Pyricularia oryzae, Pseudopernospora cubensis, Sphaeotheca fuliginea and Phytopthora infestans at 500 and 100 ppm.

This study was designed to investigate the biochemical effects of graded doses of aluminum on some serum lipid profile (SLP) of male wistar albino rats. A total of twenty-four male albino rats of 10-12 weeks of age were used for the study. They were randomly assigned to six groups (Groups A-D) of six rats each. The treatment groups-A to C were administered aluminum as aluminum chloride (AlCl3) : 0.38, 3.8, and 38 mg/kg body weight while group D received 0.2ml normal saline which served as vehicle. Assay of the SLP were carried out using standard biochemical methods after 14 days. The results showed that serum total cholesterol of the treatment group administered 38mg/kg decreased significantly (p<0.05) relative to the control whereas the serum low density lipoprotein (LDL) of the treatment groups administered 3.8mg/kg and 38mg/kg decreased significantly (p<0.05) relative to the control after 14 days of treatment. The treatment group administered 0.38mg/kg showed a decrease in serum total cholesterol and low density lipoprotein but were not statistically significant (p>0.05).

The aim of this study was to investigate the effect of instruction on the pragmatic use of Iranian learners on the speech act of request. The benefits of instruction on learners’ production and awareness of speech acts is well documented ( Alcón and Martínez-Flor, 2008). The subjects of this study were 40 upper- intermediate students at Arian Language Institute in Gorgan, Iran. They were learning English in an EFL context. The data were collected using discourse completion task (DCT) tests following Kasper and Dahl (1991: 9) formats. The data, then were rated using two native speakers. Hudson et al.’s (1995) rating scale was used to train the raters. In order to analyze the data t test was performed with mean level of students’ scores as dependent variable and instruction as a grouping variable. The findings revealed that Iranian learners performed significantly better in experimental group for speech act of request.

In this work , an experimental study to obtain the fatigue endurance limit for two aluminum alloy , 2024 and 5052 , were carried out at stress ratio R=-1 and rotary bending tests . The fatigue tests were performed at RT, 100 °C, 200 °C and 300 °C in order to establish the S–N curve equations. The fatigue endurance limits for both alloys at different temperature conditions were calculated at 107 cycles from the empirical S-N curve equations. It was found that the fatigue endurance limit decrease with increasing the temperature. Also the reduction percentage in fatigue endurance limit for 5052 Al. alloy was higher than that of 2024 Al. alloy.