Results 111 to 120 of about 22,556,402 (253)

Experimental Study on the Properties and Hydration Mechanism of Gypsum-Based Composite Cementitious Materials

Buildings
In order to achieve the resourceful, large-scale and high-value utilization of bulk industrial solid wastes such as flue gas desulfurization gypsum (FGDG), fly ash (FA) and ground blast furnace slag (GGBS), and to reduce the dosage of cementitious materials, orthogonal experimental methods were used to prepare composite cementitious materials based on ...
Jianping Liu, Ge Song, Xiaowei Ge, Bing Liu, Kaixin Liu, Yulin Tian, Xu Wang, Zhihang Hu   +7 more
openaire   +2 more sources

Evaporitic Chert Provenance: Evaluating Petrographic and Geochemical Workflows for Source Discrimination

Archaeometry, EarlyView.
ABSTRACT Chert tools were widely used in prehistory by human societies due to their knapping suitability and availability, but their relatively uniform composition, especially in evaporitic cherts, complicates sourcing, requiring specialised analytical methods.
Bruno Gómez de Soler, Pablo Rodríguez‐Salgado, Maurice Brodbeck, Judit Bria, Thomas Belgrano, Julian Menuge   +5 more
wiley   +1 more source

Marginal and Internal Adaptation of Crowns Fabricated on Models From Digital and Conventional Impressions: An In Vitro Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the marginal and internal adaptation of monolithic crowns fabricated from lithium disilicate (LD), zirconia (Zr), and fiber‐reinforced composite (FRC) using five different model types derived from digital and conventional impressions.
Mohanad Shomal, Şafak Külünk, Seniha Kısakürek   +2 more
wiley   +1 more source

SYSTEM FOR SUPPLYING HIGH SHEAR STARCH TO A GYPSUM BOARD MACHINE AND METHODS OF MANUFACTURING GYPSUM BOARD USING HIGH SHEAR STARCH [PDF]

, 2018
The present disclosure provides systems for supplying high shear starch to a gypsum board machine and methods of manufacturing gypsum board using high shear starch.
National Gypsum Company
core   +1 more source

Influence of Layering and Fracture Angles on the Performance of Salt–Gypsum Composites: Implications for the Safety of Underground Energy Storage

Energies
With the intensifying global energy crisis, ensuring robust and reliable energy reserves has become crucial, and underground energy storage offers a safe, large-scale, and cost-effective solution.
Fengbiao Wu, Tao Meng, Kehao Cao, Panpan Zhang, Ziying Zhang, Chuanda Zhang, Guanghui Zhao, Zhixia Wang, Pengtao Liu, Xiaomeng Wu   +9 more
doaj   +1 more source

Biomechanics of the implant‐supported full arch fixed complete denture manufactured by milling and injection techniques: An experimental and FEA study

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study aims to characterize the mechanical properties of implant‐supported full arch fixed complete dentures manufactured by milling and injection techniques. Materials and Methods Twenty‐two samples with milling and injection manufacturing techniques were fabricated.
Mustafa Gürkan, Ovul Kumbuloglu, Makbule Heval Şahan, Mert Narin, Halis Kandaş, Yusuf Arman, Hasan Yildiz, Mahmut Pekedis   +7 more
wiley   +1 more source

New Methodology for Evaluating Uncertainty in Mineral Resource Estimation

Applied Sciences
Geological modeling is generally based on deterministic models, which provide a single representation of reality. Probabilistic modeling is more appropriate when quantifying or understanding the uncertainty associated with a parameter of interest as it ...
José Alberto Arias, Alain Carballo, Elmidio Estévez, Reinaldo Rojas, Domingo A. Martín, Jorge L. Costafreda   +5 more
doaj   +1 more source

Macroalgae respond to consumer‐mediated nutrient cycling in a temperate ecosystem

Journal of Phycology, EarlyView.
Abstract Primary production in coastal upwelling regions has often been presumed to be supported primarily by allochthonous nutrients, but inconsistent nutrient delivery and the metabolic cost of nitrate assimilation can leave producers nitrogen limited during the growing season. As a potential supplement for insufficient allochthonous supply, nutrient
Em G. Lim, Claire M. Attridge, Kiara R. Kattler, Brittnie Spriel, Isabelle M. Côté   +4 more
wiley   +1 more source

Individualized healing significantly improves pink esthetics around immediate single implants: A systematic review and meta‐analysis

Periodontology 2000, EarlyView.
Abstract Aim This systematic review and meta‐analysis aimed to compare soft and hard tissue outcomes of applying anatomic healing abutments (AHA) and provisional restorations (PR) versus cylindrical healing abutments (CHA) on immediately placed single implants.
Xinyi Qian, Boldizsár Vánkos, Gergely Agócs, Kata Kelemen, Alexander Schulze Wenning, Barbara Kispélyi, Gábor Gerber, Gábor Varga, Péter Hermann, Péter Hegyi, Anton Sculean, German O. Gallucci, Krisztina Mikulás   +12 more
wiley   +1 more source

Conditions and timing for the precipitation of early marine diagenetic dolomite in the Triassic Dolomia Principale (northern Italy)

Sedimentology, EarlyView.
ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot, Giovanna Della Porta, Mathias Mueller, Fabrizio Berra, Benjamin F. Walter, Aratz Beranoaguirre, Sylvia Riechelmann, Oskar Schramm, Adrian Immenhauser   +8 more
wiley   +1 more source