Environmental Impact Assessment (EIA) of Gas Pipeline Transmission (Case Study: Duzduzan – Ahar)

environmental risk assessment of gas pipeline with method of muhlbauer (case study: lorestan province)

the purpose of this study is environmental risk assessment of pipelines in case study conducted in the 9th national gas pipeline in lorestan province (iran). the study employed the indexing method for investigating the risk through the muhlbauer method. geographic information system is also used to develop the maps corresponding to the environmental risks and to map the relative risk scores and...

the impact of training on second language writing assessment: a case of raters’ biasedness

چکیده هدف اول این تحقیق بررسی تأثیر آموزش مصحح بر آموزش گیرندگان براساس پایایی نمره های آنها در پنج بخش شامل محتوا ، سازمان ، لغت ، زبان و مکانیک بود. هدف دوم این بود که بدانیم آیا تفاوتهای بین آموزشی گیرندگان زن و مرد در پایایی نمرات آنها وجود دارد. برای بررسی این موارد ، ما 90 دانشجو در سطح میانه (متوسط) که از طریق تست تعیین سطح شده بودند انتخاب شدند. بعد از آنها خواستیم که درباره دو موضوع ا...

EIA procedure Challenges for environmental impact assessment in Sri Lanka

Salient features in the environmental impact assessment (EIA) process in Sri Lanka have proven to be the provision for public participation, the requirement of alternative proposals, and the use of a prescribed list to identify projects that must undergo review. While EIA has been successfully introduced and over 500 projects have been reviewed, some significant shortcomings remain. Integrated ...

Guidelines for Environmental Impact Assessment (eia) in the Arctic

Experimental Study of the Residual Stresses in Girth Weld of Natural Gas Transmission Pipeline

In order to achieve integrated condition in the girth welding of high pressure natural gas transmission pipelines, the weld zones and its surrounding area should have good mechanical properties. Residual stresses are an important defect especially in the girth welding of the pipeline. In this study, two API X70 steel pipes (with spiral seam weld) of 56 inches outside diameter and 0.780 inch wal...