scholarly journals U/sub 3/O/sub 8/ production cost analysis study. Sandstone deposit mine model EA-730, Volume 1

1978 ◽  
Keyword(s):  
Cost Analysis ◽  
Production Cost ◽  
Analysis Study

scholarly journals Design and Implementation of a Hospital-based Trauma Surveillance Registry in a Resource-Poor Setting: A Cost Analysis Study

Injury ◽  
2020 ◽  
Vol 51 (7) ◽  
pp. 1548-1553
Author(s):  
Laura N. Purcell ◽  
Emily Nip ◽  
Jared Gallaher ◽  
Carlos Varela ◽  
Yotamu Gondwe ◽  
...  
Keyword(s):  
Cost Analysis ◽  
Resource Poor Setting ◽  
Analysis Study ◽  
Design And Implementation ◽  
Resource Poor

Production cost analysis and use of pesticides in the transgenic and conventional corn crop [Zea mays (L.)] in the valley of San Juan, Tolima

GM Crops ◽  
2011 ◽  
Vol 2 (3) ◽  
pp. 163-168 ◽  
Author(s):  
Kelly Ávila Méndez ◽  
Alejandro Chaparro Giraldo ◽  
Giovanni Reyes Moreno ◽  
Carlos Silva Castro
Keyword(s):  
Zea Mays ◽  
Cost Analysis ◽  
Production Cost ◽  
Zea Mays L ◽  
San Juan ◽  
Corn Crop

scholarly journals A Novel Humidification Technique Used in Water Desalination Systems Based on the Humidification–Dehumidification Process: Experimentally and Theoretically

Water ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2264
Author(s):  
Ahmed E. Tourab ◽  
Ana María Blanco-Marigorta ◽  
Aly M. Elharidi ◽  
María José Suárez-López
Keyword(s):  
Cost Analysis ◽  
Heat Pump ◽  
Theoretical Investigation ◽  
Hybrid System ◽  
System Performance ◽  
Production Cost ◽  
Water Desalination ◽  
Economic Comparison

In this paper, an experimental and theoretical investigation is performed on a novel water desalination system based on a humidification–dehumidification technique using a heat pump. An ultrasonic water atomizer is used in the humidification process in order to improve the humidification system. In addition to that, a new configuration is employed in the humidification process (hybrid atomization system), which combines the traditional spraying atomization system and the ultrasonic water atomizer. The new humidification system performance is investigated and compared with the spraying water atomizer system in terms of humidification effectiveness and freshwater productivity. The results show that the ultrasonic water atomizer has enhanced and improved humidification effectiveness, and consequently, the productivity of freshwater. The maximum humidification effectiveness and productivity achieved by the ultrasonic water atomizer are 94.9% and 4.9 kg/h, respectively, meaning an increase of 25.2% and 18.8%, compared to the traditional spraying atomization system. The hybrid system increases humidification effectiveness and productivity by 3.8% and 8.2%, respectively, in comparison with the stand-alone ultrasonic water atomizer. A cost analysis was also carried out in this paper in order to perform an economic comparison of different humidification processes (spraying, ultrasonic; and hybrid atomization systems). The minimum production cost of one liter of freshwater amounts to $0.0311 with the spraying system, $0.0251 with the ultrasonic system, and $0.0250 with the hybrid atomization system. These results reveal the profitability of the new configuration.

scholarly journals A cost analysis study on early versus elective laparoscopic cholecystectomy for acute cholecystitis

HPB ◽  
2018 ◽  
Vol 20 ◽  
pp. S748-S749
Author(s):  
Z. Zuhdi ◽  
S. Ghani ◽  
A. Azman ◽  
C. Ian ◽  
H. Othman ◽  
...  
Keyword(s):  
Laparoscopic Cholecystectomy ◽  
Cost Analysis ◽  
Acute Cholecystitis ◽  
Analysis Study ◽  
Elective Laparoscopic Cholecystectomy

Utilisation d'éléments structuraux en aluminium dans les ponts routiers : Étude économique et structurale

2001 ◽  
Vol 28 (6) ◽  
pp. 1029-1040 ◽  
Author(s):  
Carol Roy ◽  
Denis Beaulieu ◽  
Josée Bastien
Keyword(s):  
Cost Analysis ◽  
Bridge Deck ◽  
Concrete Slab ◽  
Second Step ◽  
Structural System ◽  
Analysis Study ◽  
Simple Repair ◽  
Potential Use ◽  
Economic Standpoint ◽  
Made In

The study presented in this paper is part of a project aiming at evaluating the potential use of aluminum in structures. The types of intervention could range from a simple repair or a reinforcement involving structural aluminum, the replacement of a used bridge deck by an aluminum deck, to the construction of a new bridge made in full or in part of aluminum. It is this latter type of intervention that justified a research project, the results of which are presented in this article. The first step involves identifying the most advantageous type of aluminum structural system from a structural standpoint as well as an economic standpoint. This step includes the analysis and partial design of 40 girder- or truss-type road bridges, spanning 15 and 35 m, supporting either an active concrete slab or an aluminum deck. These studies have shown that bridges built using a Pratt-type truss and an active concrete slab provided the best results. It is also shown that some calculation criteria, such as vibration, deflection, and fatigue criteria limited the extensive use of aluminum in bridges. In the second step, nine bridges are more comprehensively analysed and designed, based on the standards used in North America, and three are fully designed, including the connexions, in order to realize a cost analysis study that is as accurate as possible. Special attention is given to vibration and fatigue problems as well as to the details related to connexions calculation. The study concludes that the development of an aluminum-only medium span road bridge system is a non-viable project in the short to mid term from a structural standpoint as well as an economic standpoint, and it makes recommendations on the use of aluminum decks and on the continuation of the work.Key words: aluminum, analysis, bridges, connexions, design, fatigue, standards, vibration.[Journal translation]

Based on OLAP Realize Real-Time Integrated Analysis of the Underground Metal Mines Cost Information

2012 ◽  
Vol 214 ◽  
pp. 809-813
Author(s):  
Jun Guo ◽  
De Qing Gan ◽  
Jing Tan ◽  
Xu Long Yao
Keyword(s):  
Cost Analysis ◽  
Real Time ◽  
Production Cost ◽  
Integrated Analysis ◽  
Technology Study ◽  
Cost Information ◽  
Information Process ◽  
The Real ◽  
Metal Mines

Through OLAP technology study and solve the data issues during the real-time integrated of cost information process. Using OLAP technology does classified and sequenced analyses on mines production cost multi-dimensionally and multi-angle computationally. It is carried the deep study that the application of OLAP theory and technology in underground metal mines cost analysis field, and meanwhile the relative OLAP modeling is put forward.

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