Hamed Farhadi

13 Questions 32 Answers 0 Followers

Questions related from Hamed Farhadi

How to read from a diplaced/sheared standpipe peizometer casing?

Dear scientists and researchers, There's a standpipe casing which has so many displacement throughout its alignment (bended or misaligned) in the ground. It made the reading impossible since the...

03 December 2019 9,463 4 View

Could you suggest literature or standards for hydraulic design of tunnels/conduits through embankment dams?

Dear all, assume we need to know what is the allowable velocity through the diversion tunnel which would not harm the concrete lining of the tunnel. and think of a gated tunnel (sluice gates in...

14 May 2018 1,202 2 View

How filter placement contamination into clay core in rockfill/earth dam may lead to a problem?

Hi dear researchers, First I want to know what the essential problem with filter contamination into clay core (or vice-versa) in earth/rock fill dams ? please find the attached image, which in...

08 October 2017 4,166 6 View

Can anybody share experience of dealing issues between owner contractor and engineer?

Here is the situation, a subcontractor hired by the main contractor is doing a excavation job. He must buy good product quality of blades for his equipment to the best job as wanted by owner....

12 July 2017 2,381 5 View

How to implement selection algorithms like Self-Organizing Map to split input data to specific subsets?

I want to use SOM and Maximum Dissimilarity Algorithm (MDA) to split Input dataset to three subsets ,i.e., Training, Testing and validation subsets for regression problems. To use these subsets...

09 April 2016 6,171 4 View

What is the unit of antioxidant enzymes (CAT, POD, SOD, APX ....) assay in wheat seed?

I want to know exactly what is the unit of antioxidant assay in seeds. I find some different unit in articles such as U/ mg prot or U/ mg FW or U/ mg prot in one minute. Please refer me to some...

28 March 2015 4,874 6 View

What is the unit of the antioxidant enzymes (CAT, POD, SOD, APX ....) assay in wheat seed?

Antioxidant enzymes, Unit, Wheat, Seed

26 March 2015 183 3 View

What are the boundary conditions in one-dimensional numerical dam-break modelling?

Can anyone guide me through numerical dam-break modelling with finite difference methods? I know that in finite volume methods, boundary conditions must agree with zero velocity at upstream, but...

04 December 2014 6,751 7 View

How can I measure the discharge of a compound channel with the help of COH and SKM?

Can anyone lead me to a specific and explicit solution for discharge calculation by COHM and SKM methods. I have some data in excel sheet and I wanted to know how can I use these methods in Excel...

30 July 2014 1,616 4 View

Can anyone help with an issue in dam stability and spillway design interaction?

I have a problem in desiging a stable dam and simultaneously fitting ogee spillway in the dam body with 0.7:1 steep, first the width of the dam is constrained with profile of ogee spillway and...

22 May 2014 8,270 9 View

How do you calculate boundary shear distribution in channels and alluvial rivers?

What is/are the most acceptable method/methods for calculating boundary shear stress in open channels and rivers (in any cross-section)?

12 April 2014 8,880 7 View

Does temperature variation lead to a negligible change in sediment movement threshold?

Higher temperature or lower temperature affects sediment movements. Would Shields' diagram change drastically or is it negligible by changing the temperature of the environment?

16 February 2014 6,318 24 View

How to find an empirical formula for a given experimental data, which has 6 independent variables and one dependent?

I believe I can't do it by using Excel. Because it just has linear regressions not a multiple nonlinear regression. I have 7 non-dimensional parameters, one is dependent. I have experimental data...

06 February 2014 3,848 27 View