Effect of interval exercise with iron supplementation on aerobic power and some hematologic indexes among the 15-18 years old boys

Background: Aerobic fitness is an index of pulmonary, cardiovascular function and haematological components and relevant to the delivery of oxygen. The aim of present study was to evaluate the effect of interval exercise with iron supplementation on aerobic power and some hematologic indexes among the15-18 years old boys. Materials and Methods: In this quasi-experimental study, 30 students (mean age 17.1±84.16) were participated in an exercise program (6 weeks, 3 sessions per week). The participants were randomly divided into three groups: Control; Exercise and exercise+ iron supplementation groups. Iron supplementation group was administered a daily supplement of iron tablet. Using a before-after design, bulk-field test and blood sampling the data were analyzed. Results: The results showed no significant difference among the groups. However, using a 6-week training program in Exercise and Exercise+ Iron supplementation group compared to the Conrol showed a significant difference for aerobic power; ferritin; transferrin and iron. No significant change was seen for hemoglobin, hematocrit and red blood cells. While in exercise group, interval exercise caused a significant increase in aerobic power (P=0.009), this was not the case for red blood indexes. Conclusions: Interval exercises along with iron supplementation caused an increase in aerobic power and some hematologic indexes

Numerical investigation on novel method for adhesively bonded t-joint between aluminum and sandwich panel

A common way to join dissimilar materials in industrial applications is to use adhesives. Marine industries use this kind of joints for attaching main hull to superstructure of the ships. Most previous researches have focused on composite-composite joints, while a few of them are devoted to aluminum- sandwich panel joints. This study focuses on the numerical static strength analysis of a typical aluminum-sandwich panel T-joints and improving its strength through a novel design. The results of numerical analyses are in a good agreement with those of the experimental tests and confirm the accuracy of numerical analyses. In analyzing the adhesive between joint elements, contact elements and cohesive zone model (CZM) in ANSYS as well as nonlinear analysis is used. Results show that change in joint geometry considered in this paper, caused a 7.25% increase in vertical failure load of the joint. This increase in strength of joint attained in a situation that because of the merging of the joined parts, the process of construction became easier

Acousto−optics:recent studies and medical applications

Abstract Development of acousto−optic (AO) techniques has made progress in recent years across a range of medical application fields, especially in improving resolution, detection speed, and imaging depth. This paper presents a comprehensive overview of recent advancements in AO−based techniques that have been presented after the previously published review in 2017. The survey covers a description of theoretical modeling strategies and numerical simulation methods as well as recent applications in medical fields. It also provides a comparison between different techniques in terms of complexity, achieved depth in tissue, and resolution. In addition, a comparison between different numerical simulation methods will be outlined. Additionally, a number of challenges faced by AO techniques are considered, particularly in the context of realistic in vivo imaging. Finally, the paper discusses prospects of AO−based medical diagnosis methods