نتایج جستجو برای: soil improvement
تعداد نتایج: 485922 فیلتر نتایج به سال:
Journal:
:Journal of the Society of Materials Science, Japan
2000
Journal:
:Clinical chemistry
1992
F W Sunderman
The history and origins of proficiency testing of clinical laboratories are reviewed. Since the introduction of proficiency testing in the late 1940s, dramatic improvement in laboratory performance has been demonstrated. Nonetheless, the poor performance found two decades earlier was summoned to support the passage of the Clinical Laboratory Improvement Act of 1967 (CLIA '67).
Journal:
:Journal of the Japanese Society of Revegetation Technology
2016
Journal:
:Sen'i Gakkaishi
1959
Journal:
:Zbornik radova Građevinskog fakulteta
2016
Journal:
:International Journal of Geo-Engineering
2019
Journal:
:Fibres and Textiles in Eastern Europe
2019
Journal:
:Agricultural Research & Technology: Open Access Journal
2016
Journal:
:IOP Conference Series: Earth and Environmental Science
2021
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