Results 81 to 90 of about 61,120 (312)

The First Quarterly Report Covering the Quarter Ending June 30, 1939 for the State-Wide Paleontologic-Mineralogic Survey [PDF]

, 1939
Bureau of Economic ...
Works Progress Administration
core   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Human Dental Microwear From Ohalo II (22,500–23,500 cal BP), Southern Levant [PDF]

, 2007
Dietary hardness and abrasiveness are inferred from human dental microwear at Ohalo II, a late Upper Palaeolithic site (22,500–23,500 cal BP) in the southern Levant.
Agelarakis, Baker, Bar Yosef, Bar Yosef, Bar Yosef, Bar Yosef, Bar Yosef, Baruch, Carmi, Cook, Covert, Daegling, Dewdney, Every, Frankel, Gal, Gal, Garfinkel, Garfinkel, Goldberg, Goldberg, Golden, Gonen, Gopher, Gordon, Gordon, Goring-Morris, Grigson, Grine, Henry, Hershkovitz, Hershkovitz, Hershkovitz, Hershkovitz, Hillman, Hillman, Hillman, Hopf, Hopf, Horwitz, Kahila, Karmon, King, Kislev, Kislev, Kislev, Kislev, Lalueza, Lechevallier, Lev-Tov, Levy, Lucas, Mahoney, Mahoney, Mahoney, Mahoney, Maier, Martin, Molleson, Molleson, Nadar, Nadel, Nadel, Nadel, Nadel, Nadel, Nadel, Nadel, Nadel, Nadel, Noy, Noy, Noy, Noy, Nystrom, Organ, Pastor, Pe'rez-Pe'rez, Perrot, Perrot, Piperno, Piperno, Pough, Puech, Rabinovich, Rensberger, Rensberger, Ronen, Ryan, Schmidt, Shalev, Simmons, Smith, Steckelis, Tabachnick, Teaford, Teaford, Teaford, Teaford, Teaford, Teaford, Teaford, Teaford, Tsatskin, Ungar, Ungar, Ungar, Ungar, Ungar, Valla, Van Valkenburgh, Van Zeist, Waddle, Walker, Weiss, Weiss, Willcox, Willcox, Wright, Zagerson, Zar, Zohar, Zohary, Zohary   +123 more
core   +1 more source

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler, Serhii Yaroshevskyi, Alexander Adamczyk, Mahnaz Mehdizadehlima, Julia Richter, Cameliu Himcinschi, David Rafaja, Alexandros Charitos, Christos G. Aneziris, Jens Kortus   +9 more
wiley   +1 more source

Root Resorption Patterns of Primary Mandibular Molars and Location of Premolar Successors Through Radiographs in Pakistani Population

Pakistan Journal of Medicine and Dentistry
Background: Primary teeth undergo physiological root resorption followed by eruption of their permanent successors. Roots of primary mandibular molars can have either symmetrical or asymmetrical resorption patterns.
Sadaf Ali, Tasleem Hosein, Khizra Rehman, Rafia Ruaaz, Yasir Raza, Pooja Balani   +5 more
doaj   +1 more source

Deep Learning for the Radiographic Detection of periodontal Bone Loss [PDF]

, 2019
We applied deep convolutional neural networks (CNNs) to detect periodontal bone loss (PBL) on panoramic dental radiographs. We synthesized a set of 2001 image segments from panoramic radiographs. Our reference test was the measured % of PBL.
Dörfer, Christof, Ekert, Thomas, Golla, Tatjana, Kharbot, Basel, Krois, Joachim, Meinhold, Leonie, Schwendicke, Falk, Wittemeier, Agnes   +7 more
core   +1 more source

Toward Low‐Consumable Anodes: Process Simulation and Prospective Life Cycle Assessment of NiFe2O4‐NiO‐Ni‐Cu vs. Prebaked Anodes for Aluminum Production with use of Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz, Ulziikhuu Otgonbayar, Alexander Adamczyk, Farhan Hossain, Daniel Vogt, Johan Berg Pettersen, Alexandros Charitos   +6 more
wiley   +1 more source

The prevalence of impacted permanent maxillary canines in Maltese school children : a pilot study [PDF]

, 1995
The aetiology of ectopic canines is not clear. A number of causes have been put forward such as the long path of eruption of the maxillary canine, lack of guidance by the lateral incisor root, narrow arches, cystic enlargement of the dental follicle ...
Camilleri, Simon
core  

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

Advanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov, Eldar Salpagarov, Anhelina Mospan, Till Manon Jannis Stadtmüller, Thomas Schemmel, Christos Georgios Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Change in Working Length at Different Stages of Instrumentation as a Function of Canal Curvature [PDF]

, 2018
The aim of this study was to determine the change in working length (∆WL) before and after coronal flaring and after complete rotary instrumentation as a function of canal curvature.
Tang, Mei
core   +1 more source