Al-Qadisiyah Journal for Engineering Sciences

In this research the effect of the reinforcement by fibers on Mechanical properties of polystyrene resin reinforced by aramid fibers was studied .The properties included impact strength , tensile strength Where the Mechanical properties were extracted for polystyrene resin before reinforcement by fibers, ... Read More

INFLUENCES OF THE INTERMEDIATE ANNEALING TREATMENT ON THE MICRO-HARDNESS AND CORROSION RESISTANCE OF NICKEL – CHROMIUM STEEL

Volume 6, Issue 1 , March 2013, Pages 0-0

Abstract

The effect of intermediate annealing treatment on the micro-hardness and corrosion resistance for Nickel – Chromium (3.2%Ni-1.57%Cr) alloy steel was carried out in this investigation, specimens from this steel were prepared and carburized, hardened and tempered, and intermediate annealing process ... Read More

INFLUENCE OF ADMIXTURES USING ON SOME OF CONCRETE PROPERTIES

Volume 6, Issue 1 , March 2013, Pages 0-0

Abstract

There are a lot of admixtures with different uses in the construction industry but it is not easy to choose the suitable admixture. The (conplast Wp100), (sika grout 214) with (2%, 4%, 6%) and (5%, 15%, 30%) respectively have been used by weight and subistution of cement to the concrete mixture using ... Read More

LEGIBILITY OF AL-KIFL HISTORICAL CITY ENVIRONMENT URBAN

Ameera Jaleel Ahmad

Volume 6, Issue 1 , March 2013, Pages 0-0

Abstract

This study is mainly concerned with legibility in urban environment in an attempt to find the kind of the relationship between changing the structural propertires for the space discipline in legibility of the mind picture for the witness and indicating the significant. Lastly, planning for historical ... Read More

DEVELOPING EXPERT SYSTEM FOR OPERATING HADITHA DAM

Nariman Yahya Othman

Volume 6, Issue 1 , March 2013, Pages 1-25

Abstract

This search presents the development and application of an Expert System for operating Haditha dam, which is considered the second biggest dam in Iraq. Haditha dam is a multi – purpose hydro – development designed to control the Euphrates River flow in the interests of irrigation, electric power ... Read More This search presents the development and application of an Expert System for operating Haditha dam, which is considered the second biggest dam in Iraq. Haditha dam is a multi – purpose hydro – development designed to control the Euphrates River flow in the interests of irrigation, electric power generation and for partial accumulation of extreme Euphrates River inflows into Haditha reservoir. Haditha dam was constructed on the Euphrates River in the Middle West of Iraq (8km) upstream from Haditha town. In 1988 the project was completed. Central and southern parts of Iraq get the benefit of irrigation water from its reservoir. It is consist of the body of the dam, hydro-power station generates (660 Mw) from (6 generator units), Spillway with (6 opening controlled by radial gates) and two Bottom outlets. Ministry of Water Resources denoted that year (2009) is a drought year for that reason the good management for water resources is very important. Haditha dam was taken as case study because the important of the project and its [water level elevation became (116 m.a.s.l.) for the mentioned year while its dead water level is (112 m.a.s.l.),(G.S.D.R.),(2012)] which means that the reservoir is almost empty, where the hydro-power station is stopped for (4 months) (from 9/2009 to 12/2009) and the release was just from the Bottom outlets. Therefor an Expert System is developed to operate the dam. Expert System (ES) is a branch of artificial intelligence (AI) that has achieved considerable success in recent years. The area of expert systems involves investigation into methods and techniques for constructing human-machine systems with specialized problem solving expertise. Expert system has many applications in the field of water engineering such as construction, design, planning, operation and maintenance of hydraulic structures. The language used to program the Expert System in this search is (VISUAL BASIC) program within windows environment. The Expert System has developed depending on actual data for operating dam for (21 years) from 1991 to 2011),[G.S.D.R.,(2012) ]. It is found that using the developed Expert System for operating Haditha dam monthly and daily was very efficient where randomly the measured average monthly water levels for (10/1991) and (9/2011) were (136.95 and 135.72, respectively) while the calculated by the program (136.80 and 135.59, respectively) were the results calculated showed that the difference between the calculated water levels and the measured water levels was as average (15 cm) which means that the development of expert system is correct.

DATA COMPRESSION FOR DNA SEQUENCE

Asaad Sumoom Daghal

Volume 6, Issue 1 , March 2013, Pages 26-34

Abstract

DNA Sequences making up any organism comprise the basic blueprint of that organism so that understanding and analyzing different genes within sequences has become an extremely important task. Biologists are producing huge volumes of DNA sequences every day that makes genome sequence database growing ... Read More

ANALYZATION THE ACCEPTED AND REJECTEDDISTURBANCES BY USING VSS TECHNIQUES

Dr.Fadhel Abbas Jumaa

Volume 6, Issue 1 , March 2013, Pages 35-42

Abstract

In this research the values of rejected and accepted (programmed) are compared to the variable control systems (VCS) by drawing curves and determine the values of the voltage switching surface system (VSS), which is working under the external effects and connect in the parts of control structure (S1, ... Read More

CORROSION RESISTANCE OF TEMPERED HEAT TREATED CARBON STEEL CK45 IN SEA WATER AT DIFFERENT VELOCITIES

Huda Mohammed Abdul-Aziz; Laith yousif Yakoub; Abdullh Kawaf Jaber

Volume 6, Issue 1 , March 2013, Pages 43-51

Abstract

The effect of tempering heat treatment on corrosion resistance of carbon steel DIN CK45 is investigated. Test specimens (1.5*1.5*0.3) Cm were prepared according to ASTM G71-30 Tempering Heat treatments at 150, 350 ◦ C were performed by heating the specimens in electrical furnace to 850 ◦ C and cooling ... Read More

DETERMINATION OF THE OPTIMAL SPRING- BACK PARAMETERS USING TAGUCHI METHOD

Aseel Hamad Abed

Volume 6, Issue 1 , March 2013, Pages 53-61

Abstract

Bending process is the one important process in the sheet metal forming in many industries, there are many parameters having a large effect on it. Spring- back is considered one of the most important indications to specify the quality of product parts. The objective of the present study is to find the ... Read More

BEHAVIOR OF PERMANENT DEFORMATION IN ASPHALT CONCRETE PAVEMENTS UNDER TEMPERATURE VARIATION

Hanaa Mohammed Mahan

Volume 6, Issue 1 , March 2013, Pages 62-73

Abstract

Rutting is recognized to be the major distress mechanism in flexible pavements as a result of increase in tire pressures and axle loads. Rutting is caused by the accumulation of permanent deformation in all or some of the layers in the pavement structure. The accumulation of permanent deformation in ... Read More

EFFECT OF CURING METHOD AND INSOLUBLE RESIDUE IN CEMENT ON THE COMPRESSIVE STRENGTH OF PORTLAND CEMENT MORTAR

Mohamed Jassam Mohamed

Volume 6, Issue 1 , March 2013, Pages 74-80

Abstract

In this experimental work, four different curing methods were applied namely including water, air, water heated-air and water heated –water. The results showed that the highest compressive strengths are attributed to the air cured under room temperature after 20hrs curing in heated water at each age. ... Read More

Volume 18 (2025)

Volume 17 (2024)

Volume 16 (2023)

Volume 15 (2022)

Volume 14 (2021)

Volume 13 (2020)

Volume 12 (2019)

Volume 11 (2018)

Volume 10 (2017)

Volume 9 (2016)

Volume 8 (2015)

Volume 7 (2014)

Volume 6 (2013)

Volume 5 (2012)

Volume 4 (2011)

Volume 3 (2010)

Volume 2 (2009)

Volume 1 (2008)

Volume & Issue: Volume 6, Issue 1, March 2013, Pages 1-80

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract