Results 91 to 100 of about 4,457,196 (182)

Chitosan Oligosaccharide Cross‐Linked Piperazine Pyrophosphate/Melamine Polyphosphate Modified Silicone‐Acrylic Emulsion‐Based Flame‐Retardant Coating

open access: yesSafety Science and Technology, EarlyView.
Chitosan oligosaccharides, as the modifier, significantly enhances the crosslinking degree of piperazine pyrophosphate and melamine polyphosphate, enabling the composite coating to form the interpenetrating network integrating Si‐P‐C‐N during combustion.
YuPing Cao   +4 more
wiley   +1 more source

Youngstown Sheet and Tube Company's Campbell Works car dumper

open access: yes, 1920
When raw materials for making steel arrived at the Youngstown Sheet and Tube Company's Campbell Works in rail cars, the most efficient way to get the material into the yard was to tip the car over. Seen here, ca. 1920, a machine called the car dumper was
Youngstown Sheet and Tube Company
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Contribution of dowel action to interfacial shear transfer in flat joints with unbonded posttensioned bars for precast segmental bridges

open access: yesStructural Concrete, EarlyView.
Abstract Dry joints are widely used in precast segmental bridge construction because they simplify assembly and accelerate erection. Incorporating fasteners crossing flat dry joints represents an innovative configuration for this type of connection.
Rogelio Franco Segarra   +3 more
wiley   +1 more source

Youngstown Sheet and Tube Company's Campbell Works mud gun

open access: yes, 1930
Mud gun in the cast house at the Youngstown Sheet and Tube Company's Campbell Works, East Youngstown (Campbell), Ohio. The mud gun, also know as a clay gun, closed the tapping hole when the casting was completed.
Youngstown Sheet and Tube Company
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Toward Silica‐Free Compliance: A Low‐Viscosity Sample Pretreatment Methodology for Crystalline Quartz Quantification in Viscous Pastes

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Crystalline quartz, the most common crystalline silica polymorph, is widely found in industrial products. It is of high regulatory relevance, because its fine fraction, a form of respirable crystalline silica, is classified as an occupational carcinogen, with product‐content thresholds (e.g., 0.1% (w/w) in the European Union) and stringent ...
Giacomo Siviero   +3 more
wiley   +1 more source

Youngstown Sheet and Tube Company's Campbell Works blast furnace pump house

open access: yes, 1920
Interior view of the Youngstown Sheet and Tube Company's pump house at the Campbell Works, East Youngstown (Campbell), Ohio, ca. 1920-1929. The equipment in the pump house drew water from the Mahoning River.
Youngstown Sheet and Tube Company
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Catching Wyckoff’s Phantom: The Peculiar Crystal Structure of Orthorhombic Cs[ICl2]

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
Over 100 years after the first crystallographic elucidation, the still elusive orthorhombic modification of Cs[ICl2] could be isolated and structurally elucidated from the reaction of aqueous H[ICl4] with Cs2CO3. The [ICl2]− anion shows an unusually large bond length asymmetry, which shows characteristics of a Cl−∙∙∙I–Cl complex with an extremely ...
Jan Langwald   +2 more
wiley   +1 more source

Columbia Accident Investigation Board Report: Volume 4. Other Technical Documents

open access: yes, 2003
Fourth volume of the final report produced by the Columbia Accident Investigation Board including documents produced by NASA and other organizations which were provided to the Columbia Accident Investigation Board in support of its inquiry into the ...
Columbia Accident Investigation Board
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Surface Micro‐Discharge Plasma for Multiple Teeth Bleaching: Efficacy, Mechanism and Safety

open access: yesHigh Voltage, EarlyView.
ABSTRACT Hydrogen peroxide (H2O2) is the commonly‐used bleaching chemical in clinical practice, but its excessive concentrations can cause tooth damage. Atmospheric pressure cold plasma is considered a promising new technique for tooth bleaching. Surface micro‐discharge (SMD) devices can generate large‐scale plasma, which holds potential for treating ...
Ruike Chen   +7 more
wiley   +1 more source

Columbia Accident Investigation Board Report: Volume 5. Other Significant Documents

open access: yes, 2003
Fifth volume of the final report produced by the Columbia Accident Investigation Board including documents produced by NASA and other organizations that were provided to the Columbia Accident Investigation Board in support of its inquiry into the ...
Columbia Accident Investigation Board
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