Inadequate hole cleaning can lead to many problems in horizontal and directional wells. In this work, we tried to investigate the cutting transport phenomenon by an experimental directional drilling simulator, considering the differences between the operational and experimental conditions. The inclination, fluid type (water, foam, viscous, and dense), rotary speed (0 and 110 rpm), nozzle bit si...

Background and objectives: Urolithiasis is a common urological disorder. Based on the Persian medicine literatures, Cicer arietinum has a potential to dissolve renal stones. This study was designed to assess the efficacy and safety of Cicer arietinum in patients with renal stone. Methods: The extract of C. arietinum seeds was sp...

Powering mm-Size Wireless Implants for Brain-Machine Interfaces

To achieve sustainable range management and avoid or minimize environmental contamination, the Army needs to know the amount of explosives deposited on ranges from different munitions and how these are degraded and transported under different geological and climatic conditions. The physical form of the deposited explosives has a bearing on this problem, yet the shapes and size distributions of ...

Diatoms are the primary source of nutrition and energy for the Southern Ocean ecosystem. Microalgae, including diatoms, synthesise biological macromolecules such as lipids, proteins and carbohydrates for growth, reproduction and acclimation to prevailing environmental conditions. Here we show that three key species of Southern Ocean diatom (Fragilariopsis cylindrus, Chaetoceros simplex and Pseu...

purpose : to analyze the correlation of ocular higher-order aberrations (hoas) and mesopic pupil size (mps) with age and gender in myopic patients screened for refractive surgery methods : ocular hoas and mps were examined in 1,641 females eyes and 749 males eyes with myopia and also in two different age groups, under 30-year-old (1,675 eyes) and over 30-year-old (715 eyes), using the zywave ab...