scholarly journals Construction cost impact analysis of the U.S. Department of Energy mandatory performance standards for new federal commercial and multi-family, high-rise residential buildings

1993 ◽  
Author(s):  
F.V. Di Massa ◽  
D.L. Hadley ◽  
M.A. Halverson
Keyword(s):  
Impact Analysis ◽  
Residential Buildings ◽  
Performance Standards ◽  
Construction Cost ◽  
Department Of Energy ◽  
High Rise ◽  
Cost Impact ◽  
The U.S

Construction Cost Prediction Based on Genetic Algorithm and BIM

2019 ◽  
Vol 34 (07) ◽  
pp. 2059026 ◽  
Author(s):  
Liang Zhao ◽  
Wei Zhang ◽  
Wenshun Wang
Keyword(s):  
Genetic Algorithm ◽  
Network Model ◽  
Feature Vector ◽  
Residential Buildings ◽  
Construction Cost ◽  
Analysis Method ◽  
Cost Prediction ◽  
High Rise ◽  
The Neural Network ◽  
Engineering Cost

According to the analysis and prediction of engineering cost, a BIM-aided analysis method based on GA network model is proposed. First, we improve the neural network by genetic algorithm; second, according to the engineering feature vector, BIM software is used to train the GA network model; finally, the GA network model reaches a steady state, given prediction of Engineering cost. According to the experimental study of 20 high-rise residential buildings in YJW area, the experimental results show that the proposed GA model combined with BIM auxiliary analysis method can accurately and easily complete the project cost prediction.

scholarly journals Organizational and technical support of compliance of the energy performance class with the performance standards for construction of high-rise residential buildings

2018 ◽  
Vol 170 ◽  
pp. 01103 ◽  
Author(s):  
Arkadiy Larionov
Keyword(s):  
Energy Efficiency ◽  
Building Materials ◽  
Residential Buildings ◽  
Performance Standards ◽  
Energy Performance ◽  
Housing Construction ◽  
Economic Interests ◽  
Technical Problems ◽  
High Rise ◽  
The Given

Organizational and technical problems of energy efficiency in the construction of high-rise residential buildings were identified and systematized. The efficiency of state and regional policies in the field of energy saving and energy efficiency in high-rise housing construction and housing and utility services was stated to be largely determined not only by the level of modern constructional technologies and production of building materials, but also by the quality of full-scale measurements. The relevancy of scientific and methodological developments, allowing correctly to carry out the control over the compliance of actual indicators of energy efficiency of high-rise residential buildings with the given parameters, was substantiated. The contradictions of the goals and economic interests of suppliers and end users of energy resources were revealed. The conclusion was made that the solution of the problem of energy efficiency in high-rise housing construction was to harmonize economic interests and anticipations of the key market players.

Micropollutants Produced by Disinfection of Wastewater Effluents*

1982 ◽  
Vol 14 (12) ◽  
pp. 45-59 ◽  
Author(s):  
R L Jolley ◽  
R B Cumming ◽  
N E Lee ◽  
J E Thompson ◽  
L R Lewis
Keyword(s):  
Wastewater Treatment ◽  
Uv Irradiation ◽  
Base Pair ◽  
Wastewater Treatment Plants ◽  
Department Of Energy ◽  
Union Carbide Corporation ◽  
Organic Constituents ◽  
Chemical Effects ◽  
Base Pair Substitution ◽  
The U.S

The principal objective of this research program was to examine the effects of disinfection by chlorine, ozone, and ultraviolet light (uv) irradiation on nonvolatile organic constituents relative to chemical effects and the formation of micropollutants. In a comparative study of highly concentrated samples of effluents from nine wastewater treatment plants, it was determined that disinfection with chlorine or ozone both destroys and produces nonvolatile organic constituents including mutagenic constituents. The chemical effects of disinfection by uv irradiation were relatively slight, although the mutagenic constituents in one effluent were eliminated by this treatment. The nine wastewater treatment plants were selected by using the following criteria: disinfection method, nature of wastewater source, type of wastewater treatment, standards for quality of treatment, and geographical location. The treatment plants varied from pilot plant and small plants [0.05 m3/s (1 Mgd)] treating principally domestic waste to large plants [4.4 m3/s (100 Mgd)] treating principally industrial waste. Four plants used only chlorine for disinfection, four used ozone for disinfection, and one used uv irradiation for disinfection. Eight treatment plants used conventional secondary or more advanced wastewater treatment, and one plant used primary treatment. The following methodology was used in this investigation: grab sample collection of 40-L samples of undisinfected and disinfected effluents; concentration of the effluents by lyophilization; high-pressure liquid chromatographic separation of nonvolatile organic constituents in effluent concentrates using uv absorbance, cerate oxidation, and fluorescence detectors; bacterial mutagenicity testing of concentrates and chromatographic fractions; and identification and characterization of nonvolatile organic constituents in mutagenic HPLC fractions. With these procedures, over 100 micropollutants were identified in the wastewater effluent concentrates. Interplant comparison revealed considerable variability in the presence of mutagenic nonvolatile organic constituents in the undisinfected effluent concentrates as well as much variability in the destruction of the mutagenic constituents and the formation of other mutagenic constituents as a result of disinfection. Moreover, the effects varied on samples collected at the same wastewater treatment plant at different periods. No micropollutants known to be mutagens were identified in the mutagenic HPLC fractions separated from the undisinfected, chlorinated, and ozonated effluent concentrates. The mutagenic activity of the nonvolatile organic constituents in one chlorinated effluent concentrate was not attributable to organic chloramines. Most of the mutagens detected in effluent concentrates are direct acting and do not require metabolic activation. Both base-pair substitution mutagens and frame-shift mutagens occurred in the wastewater concentrates, but the former type was more frequent. For many of the compounds in effluents, strain TA-1535 was more sensitive than strain TA-100 in detecting base-pair substitution mutagens. *Research sponsored by the U.S. Department of Energy and the U.S. Environmental Protection Agency. The work was carried out at the Oak Ridge National Laboratory, which is operated by the U.S. Department of Energy under contract W-7405-eng-26 with the Union Carbide Corporation.

A cost/impact analysis of selected clinical pharmacy functions in three hospitals

1974 ◽  
Vol 31 (10) ◽  
pp. 947-953
Author(s):  
Paul J. Munzenberger ◽  
Larry N. Swanson ◽  
Robert E. Smith ◽  
Frances H. Zalewski ◽  
Jules I. Schwartz ◽  
...  
Keyword(s):  
Clinical Pharmacy ◽  
Impact Analysis ◽  
Cost Impact
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