Reinforced Embankment - An Efficient Method to Stabilize Gotvand Powerhouse Upper Trenches

a paradigm shift away from method-wise teaching to strategy-wise teaching: an investigation of reconstructive strategy versus communicative strategy

چکیده: هدف اصلی این مطالعه ی توصیفی تحقیقی در حقیقت تلاشی پساروش-گرا به منظور رسیدن به نتیجه ای منطقی در انتخاب مناسبترین راهکار آموزشی بر گرفته از چارچوب راهبردی مطرح شده توسط والدمر مارتن بوده که به بهترین شکل سازگار و مناسب با سامانه ی آموزشی ایران باشد. از این رو، دو راهکار آموزشی، راهکار ارتباطی و راهکار بازساختی، برای تحقیق و بررسی انتخاب شدند. صریحاً اینکه، در راستای هدف اصلی این پژوهش، ر...

An optimal method to design reinforced concrete lining of pressure tunnels

The utilization of the lining type in pressure tunnels is highly dependent on the geological and hydraulic conditions. There are two types of lining, namely concrete and steel lining but steel lining is one of the most expensive arrangements. To decrease the length of steel lining in these tunnels, the concrete lining, which prevents water seepage from the surrounding rock mass, is the appropri...

To “stabilize ” or not to “stabilize”?

An efficient method to induce regeneration and callogenesis in Crataegus microphylla L.

Background and objectives: Hawthorn as an ethno-pharmaceutical plant has been consumed for 2,500 years. Flowers, leaves and fruits of hawthorn are rich in antioxidant and polyphenols and are popular in the treatment of congestive heart failure. Methods: In the present study, by using various media and plant hormones the regeneration and callogenesis capacity of...

Proposing an Efficient Software-based Method to Enhance Reliability of Computer Systems against Soft Errors

In recent years, along with rapid developments in technology, computer systems haveincreasingly become more integrated and more modular. Indeed, the reliability and efficiency ofcomputer systems are of high significance. Hence, the quantitative evaluation of the optimizationof reliability indexes in computer systems is considered to be a crucial issue. Reliabilityenhancement of computer systems...