Optimizing energy absorption and peak force in metal/glass fiber sandwich panels with trapezoidal cores.

Sandwich panels with trapezoidal metal/glass fiber cores are increasingly popular due to their lightweight and energy-absorption properties. This study employs response surface methodology (RSM) and Box-Behnken design to investigate the effects of core angle, fiber orientation, and MCM-48 nanoparticles on the panels' energy absorption and peak force, developing regression models with high R values of 0.9027 and 0.

Determinants of the infection rate of the COVID-19 in the U.S. using ANFIS and virus optimization algorithm (VOA).

Recently, anovel coronavirus disease (COVID-19) has become a serious concern for global public health. Infectious disease outbreaks such as COVID-19 can also significantly affect the sustainable development of urban areas. Several factors such as population density and climatology parameters could potentially affect the spread of the COVID-19.

Practical stabilization of time-delay fractional-order systems by parametric controllers.

This paper stabilization of time-delayed fractional-order systems by unlimited controllers is considered. To achieve the best controller so that the system be stable, the parameters of the feedback matrices are determinate with the minimum norm. Various constraints applied by the designer to obtain the desired performance criteria.

A comparison of body image concern in candidates for rhinoplasty and therapeutic surgery.

Background: Body dysmorphic disorder among patients referring for cosmetic surgeries is a disorder that if not diagnosed by a physician, can cause irreparable damage to the doctor and the patient.

Objective: The aim of this study was to compare body image concern in candidates for rhinoplasty and therapeutic surgery.

Methods: This was a cross-sectional study conducted on 212 patients referring to Loghman Hospital of Tehran for rhinoplasty and therapeutic surgery during the period from 2014 through 2016.

Preparation, Characterization and Cytotoxicity of Silibinin- Containing Nanoniosomes in T47D Human Breast Carcinoma Cells.

Background: Breast cancer is one of the most frequent cancer types within female populations. Silibinin is a chemotherapeutic agent active against cancer. Niosomes are biodegradable, biocompatible, safe and effective carriers for drug delivery.