scholarly journals Utilizing the Main Outfall Drain-Addalmage Lake System for Hydroelectric Power Generation

2019 ◽  
Vol 25 (7) ◽  
pp. 104-117
Author(s):  
Ahmed Naeem Kizar ◽  
Riyadh Z. Azzubaidi
Keyword(s):  
Power Generation ◽  
Water Level ◽  
Electrical Power ◽  
Arabian Gulf ◽  
Hydroelectric Power ◽  
Operation Condition ◽  
Lake System ◽  
Low Head ◽  
Navigation Lock ◽  
Hydroelectric Power Generation

The basic idea of the Main Outfall Drain, MOD, was to construct a main channel to collect saline drained water of the irrigation projects within central and southern parts of Iraq and discharge it down to the Arabian Gulf. The MOD has a navigation lock structures near Addalmage Lake at station 299.4km. This structure is designed to ensure navigation within the MOD. The water level difference upstream the cross regulator and the downstream conjugation structure is about 9m. This head difference can be used to generate electrical power by constricting a low head power plant. This study aimed to utilize the head difference in navigation lock structures for power generation. Different operation condition and locations plants were examined. Hydrologic and hydraulic simulations were used to analyze the system of the MOD-Addalmage Lake system. Results showed that the water level are kept below the dike level along the reaches in the all alternatives and the maximum average annual power generated vary between 3.41MW to 5.55MW depending on the selected alternative of operation and the site of the plant  

Utilization of prosodic and linguistic cues during perceptions of nonunderstandings in radio communication

2016 ◽  
Vol 38 (3) ◽  
pp. 509-539 ◽  
Author(s):  
JAIME C. AUTON ◽  
MARK W. WIGGINS ◽  
BEN J. SEARLE ◽  
NAN XU RATTANASONE
Keyword(s):  
Power Generation ◽  
High Risk ◽  
Distributed Environments ◽  
Hydroelectric Power ◽  
Verbal Instruction ◽  
Radio Communication ◽  
Risk Environments ◽  
Prosodic Cues ◽  
Linguistic Cues ◽  
Hydroelectric Power Generation

ABSTRACTThe readback/hearback loop is a communicative protocol used in many high-risk environments to ensure that a verbal instruction has been heard correctly by a receiver. However, it does not necessarily ensure that an instruction has been understood. Using an international sample of hydroelectric power generation controllers, this study examined whether particular linguistic (complete and partial readbacks) and prosodic (final intonation, filler, and interturn delay) cues contained within a readback response could signal to listeners the extent to which speakers had understood an instruction. The results indicated that different prosodic cues are used to detect nonunderstandings, depending upon the linguistic content of the readback. The results have implications for training and system design in distributed environments.

scholarly journals Relevant parameters for characterizing mountain rivers: a review

RBRH ◽  
2019 ◽  
Vol 24 ◽  
Author(s):  
Maurício Andrades Paixão ◽  
Masato Kobiyama
Keyword(s):  
Power Generation ◽  
Grain Size ◽  
Water Resources ◽  
Fluvial Geomorphology ◽  
Field Survey ◽  
Hydroelectric Power ◽  
Mountain Rivers ◽  
Fluvial Dynamics ◽  
Sporting Activities ◽  
Hydroelectric Power Generation

ABSTRACT Mountain rivers are situated in a large portion of the terrestrial surface, especially in headwaters regions, and have been used for various purposes such as recreation, sporting activities, water resources and hydroelectric power generation. However, hydrogeomorphic characteristics of mountain rivers are not fully understood. In this context, the present paper aimed to identify relevant parameters for characterizing rivers in these environments based on bibliographical review. It was identified which parameters have been used and how they have been used to characterize mountain rivers in distinct classifications. The most cited parameters were channel gradient, relation between river width and depth, entrenchment ratio, discharge, sediment transport and grain-size distribution. Also, the current situation related to researches in fluvial geomorphology in mountain rivers in Brazil was evaluated, and the strong need of field survey as basis for the best understanding of mountain fluvial dynamics and characterization was verified.

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