Purpose: The purpose of the present research is to analyze the elements and features of Pars Azarakhsh library softwares user Interface and to determine of its users' general satisfaction.Methodology: The method used to carry out this applied research is survey. Data collection was done using a questionnaire. The sample size was determined via stratified random sampling. To analyze the collected data descriptive statistics, T-Test, ANOVA, Pearson's correlation coefficient, and SPSS software version 16 were applied.Findings: The most satisfying feature of Pars Azarakhsh library software was ‘learning’ and ‘software application’ with average 2.17.Conclusion: Shahid Chamran University students have been moderately satisfied with Pars Azarakhsh library software. So, to improve the efficiency and utility of the software some attempts are necessary.

Background and Aim: The main objective of the research is to determine the understanding level of the students of Ferdowsi University of Mashhad in the terms used in user Interface of SIMAD library software. Methods: The study is an applied research with survey descriptive method. Research population was Ferdowsi University of Mashhad, including 24346 students of whom 164 were selected as sample. Data was collected through questionnaire and SPSS software was used as an instrument for the analysis of the data obtained. Results: The results indicated that the user's level of understanding of terms used in the user Interface is not desirable in objective method (23 words investigated). However, regarding subjective method (the items of the Likert scale) the level of understanding is acceptable. Furthermore, the grammar and the length of the phrases used in the user Interface do not result in better understanding of the terms. Finally, there is not a significant difference between students' understanding level of terms and students' educational level and field of study in both objective and subjective methods. Conclusion: To design an appropriate user Interface for information retrieval systems, the needs and level of comprehension related to the users must be taken into consideration. However, in other to increase the users’ ability in making use of library software, educating the users appears to be of cardinal importance.

Purpose: This study aimed to evaluate the Children's National Digital Library of I. R. Iran. We strived to evaluate the user Interface (UI) of the library with “general criteria for evaluating digital libraries” that have been extracted by Noruzi (2009) and functionalities of the library by special criteria extracted by researchers.Method: The study used an evaluative document study method. The researcher used to compare the user Interface and core functionalities of the library against extracted criteria.Findings: Findings of the study showed that conformation rate of the Library's Interface with the general criteria was 28/62 percent and this account for general and special criteria was 91/90 percent.Results: Combining the obtained results in evaluation of user Interface from the viewpoints of public and special evaluating criteria, the National Library of Children and Adolescent have suitably operated.

Nowadays total joint replacements are widely used in the world, so in average 800,000 joint surgeries are done yearly only in Europe and North America. However implant loosening is and remains as the major issue of all implant failures and therefore causes revision surgery procedures. Studies and experiments have identified poor fixation of implants most likely is the main cause of long term implant failure and in this case the cement-implant Interface cavities are very effective due to resultant stress concentration. In this study the theory of this problem, continuum and mathematical equations for an inhomogeneous material by using Eshelby’s equivalent inclusion method with a spherical void as a special type of inhomogenities is addressed and a new yield criterion with respect to the void’s volume fraction is derived and changes in material elasticity tensor concerning Mori-Tanaka’s theorem also determined, then by using finite element method and remeshing technique a macro scale cement-implant Interface cavity is modeled and concerning the loss of strength due to void existence and the Interface stress concentration, the crack initiation and propagation  phenomenon is numerically investigated with respect to different orthopedic cement material properties. The results show that crack propagates at the Interface at constant stress and strain by elastoplastic material and it propagates in cement bulk by considering elastic material properties for cement that both could cause implant loosening even in very small void’s volume fractions in which there are no significant changes in cement yield stress and elasticity tensor according to analytical solution. But numerical simulation shows that when a homogenous cement structure is achieved via high vacuum mixing method, there is a uniform stress distribution in the cement structure and no stress concentration zone forms even at high stress levels and also there is no appropriate local site for crack initiation.

In order to investigate the possibility of quinoa producing in Garmsar, Iran, a factorial experiment conducted in randomized complete block design with three replications in 2018-2019 growing season at Garmsar Agricultural Research Station. The factors were planting date at three levels (March 6th, April 1st and April 6th) and the three genotypes of quinoa (Q26, Q29 and Titicaca). Results showed that the effect of planting date was significant for all studied traits except the harvest index. Also, all studied traits were significantly different in all genotypes. Titicaca planted on March 6th had the highest yield (2276 kg.ha-1).The grain yield and yield components decreased with the delaying the planting date. Compared to early plantings, Latest date, April 6th, led to reduction of all traits, especially grain yield (about 50%). The results of simple phenotypic correlation between the studied traits showed that grain yield per hectare had the highest correlation with plant yield (0.877) and then with leaf area index (0.832), panicle weight (0.815) and number of branches per plant (0.745) that was significant at the 1% probability level.