Results 21 to 30 of about 7,842 (158)

A influência do tipo de cimento na resistência à compressão simples de uma areia artificialmente cimentada

open access: yesGeotecnia, 2012
Atécnica de melhoramento de solos de baixa capacidade de suporte utilizando cimento Portland tem sido empregada em vários países pelo mundo. O conhecimento dos fatores que influenciam o desempenho de um solo melhorado é de fundamental importância para ...
Jonatan Jonatan   +3 more
doaj   +1 more source

C. F. v. Weizsächer on Quasistationary Isotropic Turbulence Compared With Onsager's Statistical Hydrodynamics

open access: yesNatural Sciences, Volume 6, Issue 2, April 2026.
v. Weizsäcker and Heisenberg began their turbulence collaboration in 1945 while still quarantined at Farm Hall. Their papers were submitted separately in 1946 from Göttingen. v. Weizsäcker had derived the 5/3 law for dissipation while using dimensional analysis in real space.
Joseph L. McCauley
wiley   +1 more source

Bianchi Type‐I Dark Energy Cosmology with Power‐Law Relation in Brans‐Dicke Theory of Gravitation

open access: yesAdvances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018
We have studied the interacting and non‐interacting dark energy and dark matter in the spatially homogenous and anisotropic Bianchi type‐I model in the Brans‐Dicke theory of gravitation. The field equations have been solved (i) by using power‐law relation and (ii) by assuming scale factor in terms of redshift.
S. D. Katore   +2 more
wiley   +1 more source

Bir İşletmeye Ait Yardımcı Tesislerin Enerji Tüketimi ve Verimliliğinin İncelenmesi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2022
Bu çalışmada, bir çimento fabrikasında mevcut olan yardımcı işletmeler kısmının enerji tüketimleri incelenmiştir. Yardımcı işletmeler kısmı; kazan dairesi, kompresör dairesi, soğutma havuzu, idari bina, merkezi kontrol binası ve atölyeleri kapsamaktadır.
Elif Öğüt, Özge Cura
doaj  

Variáveis-chave no controle da resistência mecânica de misturas solo-cimento

open access: yesGeotecnia, 2007
Freqüentemente, a utilização de técnicas tradicionais da engenharia geotécnica depara-se com obstáculos de caráter econômico e ambiental. A técnica do solo-cimento torna-se atrativa quando o melhoramento das propriedades do solo do local constitui-se ...
Diego Foppa   +4 more
doaj   +1 more source

The effect of different puzzolanic additives on mechanical properties of cement mortars [PDF]

open access: yes, 2004
Bu çalışmada, Soma termik santralinden elde edilen uçucu kül, iki farklı tras (Yenişehir, Bilecik) ve silis dumanı, çimento klinkerinin bir kısmı yerine katılmış ve elde edilen harçların basınç dayanım değerleri incelenmiştir.
Kan, Sabiha   +3 more
core  

Incorporation of Coconut Fibers Into Clay‐Based Mortars: A Study on Mechanical and Microscopic Behavior

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 8, Issue 2, March 2026.
Clay‐based mortar reinforced with coconut fibers showed improved flexural strength and promising mechanical performance, despite shrinkage‐induced cracks. The study highlights the potential of using waste and natural fibers in eco‐efficient mortars, emphasizing the importance of curing and moisture control.
Gabriela Machado Guimarães Ferreira   +1 more
wiley   +1 more source

A Study on Occupancy and Compressive Strength of Concrete with Produced Injection Method

open access: yesAdvances in Materials Science and Engineering, Volume 2014, Issue 1, 2014., 2014
Concrete is a composite construction material made primarily of aggregate, cement, and water. Fresh concrete must have certain features. These are shown in durability, workability, compressive strength, flexural strength, shrinkage, impact resistance, wear, and so forth.
Cevdet Emin Ekinci   +2 more
wiley   +1 more source

Firmalarda iş mükemmelliği uygulaması ve iş sonuçlarına yansıması - Türkiye imalat sektöründe bir çalışma [PDF]

open access: yes, 2000
Bu makalede; iş mükemmelliği modeli, en iyi uygulamalar ve rekabet gücü arasındaki ilişki Türkiye’de elektronik, çimento, otomotiv ve beyaz eşya yan sanayii sektörlerinde faaliyet gösteren 82 firmayı kapsayan bir dizi sektörel kıyaslama çalısmasından ...
İkiz, İlknur   +3 more
core  

Comparative Biocompatibility of Portland‐Based Endodontic Cements Containing Niobium and/or Bismuth Oxides in Rat Subcutaneous Tissue

open access: yesBioMed Research International, Volume 2026, Issue 1, 2026.
Objectives To evaluate the in vitro cytocompatibility and osteogenic potential and the in vivo biocompatibility of two experimental endodontic cements based on Portland cement combined with either Nb2O5 (F6) and/or bismuth oxide (F7) in a rat subcutaneous implantation model. Methods For the in vitro study, MC3T3‐E1 preosteoblastic cells were exposed to
Raphael Victor Silva Andrade   +14 more
wiley   +1 more source

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