Results 81 to 90 of about 717,166 (300)

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Merger momentum and investor sentiment: the stock market reaction to merger announcements [PDF]

open access: yes
This paper examines the effects of mergers on bidding firms’ stock prices. We find evidence of merger momentum: bidder stock prices are more likely to increase when a merger is announced if recent mergers by other firms have been received well (a “hot ...
Richard J. Rosen
core  

The impact of horizontal mergers on rivals: Gains to being left outside a merger [PDF]

open access: yes
It is commonly perceived that firms do not want to be outsiders to a merger between competitor firms. We instead argue that it is beneficial to be a non-merging rival firm to a large horizontal merger. Using a sample of mergers with expert-identification
Clougherty, Joseph, Duso, Tomaso
core   +2 more sources

GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs

open access: yesPhysical Review X, 2019
We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1  M_{⊙} during the first and second observing runs of the advanced gravitational-wave detector network.
B. P. Abbott   +1148 more
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

How effective is European merger control? [PDF]

open access: yes
This paper applies an intuitive approach based on stock market data to a unique dataset of large concentrations during the period 1990-2002 to assess the effectiveness of European merger control.
Gugler, Klaus   +2 more
core   +2 more sources

Gravitational-wave luminosity distance in quantum gravity

open access: yesPhysics Letters B, 2019
Dimensional flow, the scale dependence of the dimensionality of spacetime, is a feature shared by many theories of quantum gravity (QG). We present the first study of the consequences of QG dimensional flow for the luminosity distance scaling of ...
Gianluca Calcagni   +5 more
doaj   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Intrinsic Handedness in O1–O4a Black Hole Mergers: Probing Orbital Precession, Remnant Retention in Dense Environments, and Cosmological Mirror Asymmetry

open access: yesThe Astrophysical Journal Letters
Precessing binary black holes generically produce an imbalance of right- and left-handed gravitational waves (GWs), reflecting the breaking of mirror symmetry by the merger dynamics. We study this phenomenon using the observer-independent quantity V _GW ,
Juan Calderón Bustillo   +3 more
doaj   +1 more source

Hunting for Dark Particles with Gravitational Waves

open access: yesEPJ Web of Conferences, 2017
The LIGO observation of gravitational waves from a binary black hole merger has begun a new era in fundamental physics. If new dark sector particles, be they bosons or fermions, can coalesce into exotic compact objects (ECOs) of astronomical size, then ...
Giudice Gian F.
doaj   +1 more source

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