نتایج جستجو برای: retentive hole

تعداد نتایج: 62176  

Journal: :Journal of Drug Delivery and Therapeutics 2018

In this letter, we consider static black hole in f(R) gravity.We take advantage from corrected entropy and temperature and investigate such black hole. Finally, we study the $ P - V $ critically and phase transition of corrected black hole with respect to entropy and temperature. Here also, we obtain the heat capacity for the static black hole in $ f(R) $ gravity. This calculation help us...

The present work aims at reducing the friction of rubber soles sliding on ceramic floorings. Fitting bored cylindrical protrusions with different diameters on rubber soles was proposed. Experiments were carried out to evaluate the performance of the proposed protrusions in increasing friction coefficient at dry and contaminated floorings. It was found that, at dry sliding, friction coefficient ...

Journal: :مهندسی عمران فردوسی 0
بابک لشکرآرا علی لشکرآرا منوچهر فتحی مقدم

many experimental studies have been conducted on development of the scour hole as a result of vertical jet impaction. research has shown that aeration of the nappe flow in the model is much weaker than that in the prototype. therefore, the influence of aeration on scour holes needs further study. experimental investigation of the effects of air entrainment and tail water depth on the scour hole...

ژورنال: علوم آب و خاک 2019

The effect of the uplift force in the hydraulics structures is against stability. So, determining and controlling this force can be very important. One of the ways to achieve this purpose is to decrease this force by using the hole drains; in this way, we can build perpendicular pipes with different diameters, leading to the durability of the structure. Therefore, an experimental model of concr...

Journal: :International Journal of Dental Materials 2022

Reliable bonding between the prepared tooth and monolithic ceramics can be achieved by various luting agents available on market. The selection of agent cementation technique plays an important role in success restoration. With advent resin-based adhesive systems as agents, clinicians' perspectives have changed to a more conservative approach. Recent systems, chemically adhere athe crowns struc...

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