ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Electrical conductivity  (2)
  • Management  (1)
Collection
Keywords
Years
  • 1
    facet.materialart.
    Unknown
    The effect of water containing sodium sulfate ions on strength of concrete of aquaculture ponds and channels (2018)
    Details
    Publication Date: 2021-05-19
    Description: Aquaculture is among the oldest occupations of human being. Over the past quarter of century, the aquaculture industry has grown rapidly. The effect of water containing sodium sulfate on long term compressive strength of concrete of fishing ponds and channels is investigated in this paper. Aim of this paper was to analyze the strength of concrete channels and of aquaculture which are in direct contact with dissolved sodium sulfate. This is an ongoing laboratory investigation which consisted of 480 standard casting concrete cube mix designs and subjecting them to different curing condition environments. Analyzing laboratory results, it was found that for short period of time, the effect was negligible, but for longer periods up to seven months, EC (electrical conductivity) of water had a low negative effect on compressive strength of concrete, while specimens were placed in waters with different ECs. On the other hand, average compressive strength of concrete was almost 25 kg/cm2 lower than estimated. However, loading the sample concretes up to failure resulted in strength loss of up to 10%. To solve this problem, designed compressive strength must be considered 10% higher than actual in order to have an acceptable concrete strength for water channels and ponds which are in direct contact with sodium sulfate ions in the water.
    Description: Published
    Keywords: Aquaculture ; Aquaculture ; Compressive strength ; Concrete ; Sodium sulfate ; Electrical conductivity ; Ponds and channels
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.467-484
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    facet.materialart.
    Unknown
    Implementation of Value Engineering for strategy formulation (Case study: Fisheries sector) (2021)
    In:  http://aquaticcommons.org/id/eprint/22473 | 18721 | 2018-04-10 23:33:35 | 22473 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-06
    Description: This paper analyzes the results of implementing Value Engineering (VE) into SWOT methodology undertaken in Yazd province of Iran. This is the first time that these techniques have been undertaken for fisheries sector in Iran. The study mainly aims at applying Value Engineering and SWOT techniques to achieve the best out of decision-making, and also of management issues as a whole, through the consideration of creative ideas for improvement. The analyses use scientific trawl data and standardized analysis techniques. Based upon the analysis of fisheries issues, findings indicate that the optimized policy is to introduce new sea food chain restaurants into the studied province. Moreover, other suggestions could be as follows: advertising and good standard packaging for export, building facilities for processing and refrigeration by investors, producing Salmon for export in good packaging, producing crabs and other new species, encouraging people to consume more fish, paying great attention to research works, government supporting for transportation, loan, and subsidies, and finally encouraging investors.
    Description: Article includes abstract in Farsi on last page.
    Keywords: Fisheries ; Management ; Planning ; Fishery ; Value Engineering (VE) ; SWOT methodology ; Strategy ; Yazd province ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 689-707
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 3
    facet.materialart.
    Unknown
    The effect of water containing sodium sulfate ions on strength of concrete of aquaculture ponds and channels (2021)
    In:  http://aquaticcommons.org/id/eprint/22790 | 18721 | 2018-05-22 19:28:01 | 22790 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-10
    Description: Aquaculture is among the oldest occupations of human being. Over the past quarter of century, the aquaculture industry has grown rapidly. The effect of water containing sodium sulfate on long term compressive strength of concrete of fishing ponds and channels is investigated in this paper. Aim of this paper was to analyze the strength of concrete channels and of aquaculture which are in direct contact with dissolved sodium sulfate. This is an ongoing laboratory investigation which consisted of 480 standard casting concrete cube mix designs and subjecting them to different curing condition environments. Analyzing laboratory results, it was found that for short period of time, the effect was negligible, but for longer periods up to seven months, EC (electrical conductivity) of water had a low negative effect on compressive strength of concrete, while specimens were placed in waters with different ECs. On the other hand, average compressive strength of concrete was almost 25 kg/cm^2 lower than estimated. However, loading the sample concretes up to failure resulted in strength loss of up to 10%. To solve this problem, designed compressive strength must be considered 10% higher than actual in order to have an acceptable concrete strength for water channels and ponds which are in direct contact with sodium sulfate ions in the water.
    Keywords: Aquaculture ; Chemistry ; Engineering ; Aquaculture ; Compressive strength ; Concrete ; Sodium sulfate ; Electrical conductivity ; Ponds and channels ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 467-484
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...