نتایج جستجو برای: angle of repose

تعداد نتایج: 21173589  

2012
Zhouhua Wang Bao Chen Guilan Quan Feng Li Qiaoli Wu Linghui Dian Yixuan Dong Ge Li Chuanbin Wu

BACKGROUND AND METHODS The aim of this study was to develop an immediate-release pellet formulation with improved drug dissolution and adsorption. Carbamazepine, a poorly water-soluble drug, was adsorbed into mesoporous silica (SBA-15-CBZ) via a wetness impregnation method and then processed by extrusion/spheronization into pellets. Physicochemical characterization of the preparation was carrie...

Journal: :British journal of pharmacy 2023

The objective of this study is to develop crystallo-co-agglomeratesof metronidazole having improved physicochemical, compressibility andsolubility properties. process agglomeration employed the use ofdichloromethane (good solvent), ethanol (bridging liquid) and distilled water (poorsolvent). Micromeritic properties co-agglomerates werestudied in terms bulk density, tapped Carr's index, Hausner’...

Journal: :Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 2014
Jacob K Dey Masaru Ishii Kofi D O Boahene Patrick J Byrne Lisa E Ishii

OBJECTIVE Assess the ability of facial reanimation surgery to restore affect display in patients with severe facial paralysis. STUDY DESIGN Survey of healthy observers' perception of change in facial visage from preoperative to postoperative state. SETTING Academic tertiary referral center. MAIN OUTCOME MEASURES Observer graded affect display. METHODS Ninety naive observers completed a ...

Journal: :INMATEH-Agricultural Engineering 2022

Aiming at the lack of accurate and reliable discrete element simulation parameters in study soilmachine interaction mechanism design machinery planting areas rhizomes hilly mountainous areas, EDEM software was used to calibrate parameters. The soil angle repose test contact between particles, sliding machinery. Box-Behnken optimization method establish multiple regression model angle, optimal p...

Journal: :مجله دندانپزشکی 0
حسن رزمی h. razmi اشکان یوسفی a . yousefi

statement of problem: the goal of a successful endodontic surgery is to establish an adequate seal in apical region. therefore during surgery, root-end resection is essential for an appropriate situation and proper access.purpose: the aim of this study was to determine the most appropriate root-end resection angle to establish adequate apical seal in periapical surgerymaterials and methods: for...

Journal: :Agro productividad 2021

Objective: Evaluate the physical-chemical properties and characterize microstructure of four varieties traditional Mexican chili (Capsicum annuum L.) powders: “Arbol”, “Guajillo”, “Piquin” “Mole ranchero” (Ancho chili).
 Design/methodology/approach: Physical-chemical powders were evaluated by means moisture content, particle size, aerated tapped bulk density, Carr index, Hausner ratio, ang...

Journal: :BioMed Research International 2023

Background. Tablets are still the most preferred means of drug delivery. The search for new and improved direct compression tablet excipients is an area research focus. This because method overcomes drawbacks granulation methods production. It exempts several treatment steps associated with methods. requirements powders to be directly compressible include flowability, low friction tendency, com...

Journal: :Frontiers in Mechanical Engineering 2023

Zanthoxylum bungeanum is a characteristic spice in culinary culture. This article focuses on the lack of intrinsic and contact parameters for studies discrete element tribute pepper from Hanyuan. to provide support mechanized harvesting bungeanum. The EDEM software was used establish model granules. granules, such as Three-dimensional dimension, density, Poisson’s ratio, elastic modulus, were m...

Journal: :Agronomy 2022

Objective The construction method of the discrete element model and setting simulation parameters in strip- blade-shaped sugarcane leaf are unclear. model’s accuracy greatly influences dynamic response characteristics between particles, it is necessary to improve through parameter calibration. Method optimized calibrated based on surface methodology (RSM) with physical angle repose as value. Fi...

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