Results 91 to 100 of about 1,299,170 (374)

Analisis Struktur Kristal Pada Tanah di Sekitar Daerah Rammang-Rammang Kawasan Karst Maros [PDF]

open access: yes, 2015
Kawasan Karst Maros-Pangkep merupakan salah satu kawasan karst yang terkenal dan terbesar di Indonesia. Salah satu bagian dari gugusan Karst Maros-Pangkep adalah daerah karst yang berada di Dusun Rammangrammang Desa Salenrang Kabupaten Maros, yang ...
Arsyad, Muhammad   +2 more
core  

Microstructure and chemical composition of Roman orichalcum coins emitted after the monetary reform of Augustus (23 B.C.) [PDF]

open access: yes, 2019
A collection of ancient Roman orichalcum coins, i.e., a copper-zinc alloy, minted under the reigns from Caesar to Domitianus, have been characterised using scanning electron microscopy (SEM-EDS) and electron microprobe analysis (EMPA).
Catalli F.   +3 more
core   +1 more source

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim   +4 more
wiley   +1 more source

Caracterización química y espectroscópica de material particulado en aire extramuros en la ciudad de La Plata y alrededores [PDF]

open access: yes, 2017
Este trabajo se centra en la caracterización química y espectroscópica de material particulado (MP10 y MP2.5) en la ciudad de La Plata y alrededores, que cuenta con alto tránsito vehicular y un polo petroquímico cercano, diferenciando tres zonas ...
Colman, Jorge   +5 more
core   +1 more source

Sintesis Nano Partikel Kitosan dan Pengaruhnya terhadap Inhibisi Bakteri Pembusuk Jus Nenas [PDF]

open access: yes, 2014
Chitosan nano particles synthesized by crosslinking reaction between the ionic gelation of chitosan with TPP (tri-polyphosphate) using Tween 80 surfactant.
Oktarina, H. E. (Husniati)
core   +2 more sources

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar   +5 more
wiley   +1 more source

Fabrication of Multifunctional FeSi Gyroid Lattice Composites via Additive Manufacturing and Polymer Infiltration

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐step approach combining laser powder bed fusion of FeSi electrical steel with Bakelite infiltration enables the fabrication of multifunctional gyroid lattice composites. The resulting structures exhibit high strength, magnetic anisotropy, and complete polymer infiltration, demonstrating a simple and scalable route toward lightweight, mechanically
Angelo F. Andreoli   +9 more
wiley   +1 more source

Analysis of composition and microstructure of diatom frustules in mud on the coast of Boryeong- city, South Korea

open access: yesApplied Microscopy, 2022
The microstructure of diatom frustules found in mud sediments along the coast of Boryeong- city, South Korea, was observed using a scanning electron microscopy (SEM), and the constituent elements of diatoms were analyzed using energy-dispersive X-ray ...
Mi Kyung Bok   +4 more
doaj   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Stiren-Bütadien Kopolimer Katkısının Çimento Harçlarına Etkisi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2016
Beton üretiminde çoğunlukla yeni kuşak kimyasal katkılar kullanılmaktadır. Dağıtma (dispersiyon) gücü yüksek olan kimyasal katkıların beton içerisinde belirli oranlarda kullanılması esastır.
Alper Bideci   +4 more
doaj  

Home - About - Disclaimer - Privacy