Results 61 to 70 of about 455,483 (298)

Photopatternable PEDOT:PSS Hydrogels for High‐Resolution Photolithography

open access: yesAdvanced Science, EarlyView.
A photosensitive biphasic conducting polymer hydrogel (PB‐CH) is rationally designed with PEDOT:PSS as the conductive phase and a light‐sensitive matrix as the mechanical phase. Such a PB‐CH offers a unique combination of excellent conductivity (≈30 S cm⁻¹), robust mechanical performance (with stretchability up to 50%), and high photopatternability ...
Wen Wang   +7 more
wiley   +1 more source

Testing Galaxy Formation Models with the Stellar Mass–Halo Mass Relations for Star-forming and Quiescent Galaxies

open access: yesThe Astrophysical Journal
The tight relationship between the stellar mass and halo mass of galaxies is one of the most fundamental scaling relations in galaxy formation and evolution. It has become a critical constraint for galaxy formation models.
Kai Wang, Yingjie Peng
doaj   +1 more source

Merging groups and clusters of galaxies from the SDSS data. The catalogue of groups and potentially merging systems [PDF]

open access: yesA&A 602, A100 (2017), 2017
Galaxy groups and clusters are the main tools used to test cosmological models and to study the environmental effect of galaxy formation. This work provides a catalogue of galaxy groups and clusters, as well as potentially merging systems based on the SDSS main galaxy survey.
arxiv   +1 more source

Wireless Technologies for Wearable Electronics: A Review

open access: yesAdvanced Electronic Materials, EarlyView.
This review discusses recent advancements in wireless wearable electronics, focusing on communication technologies and power solutions. It covers key design considerations, explores wireless protocols from short‐ to long‐range networks, and examines powering methods such as integrated sources and energy harvesting.
Choong Yeon Kim   +8 more
wiley   +1 more source

Observational Evidence for an Age Dependence of Halo Bias

open access: yes, 2006
We study the dependence of the cross-correlation between galaxies and galaxy groups on group properties. Confirming previous results, we find that the correlation strength is stronger for more massive groups, in good agreement with the expected mass ...
Frank C. van den Bosch   +5 more
core   +2 more sources

Radio emission of Shakhbazian Compact Galaxy Groups [PDF]

open access: yes, 1999
Three hundred fifty three radio sources from the NRAO VLA Sky Survey (NVSS) (Condon et al. 1998) and the FIRST Survey (White et al. 1997}, are detected in the areas of 179 Shakhbazian Compact Groups (ShCGs) of galaxies.
Amirkhanian A. S.   +30 more
core   +2 more sources

A Review of Ga₂O₃ Heterojunctions for Deep‐UV Photodetection: Current Progress, Methodologies, and Challenges

open access: yesAdvanced Electronic Materials, EarlyView.
This paper provides a comprehensive review of the existing literature related to the fundamentals of gallium oxide (Ga2O3), growth methods, substrates, and particularly a focused examination of Ga2O3‐based heterojunctions. Particular attention has also been given to the state‐of‐the‐art Ga2O3‐based heterojunctions for photodetectors. The key challenges
Alfred Moore   +4 more
wiley   +1 more source

The History of Galaxy Formation in Groups: An Observational Perspective [PDF]

open access: yes, 2006
We present a pedagogical review on the formation and evolution of galaxies in groups, utilizing observational information from the Local Group to galaxies at z~6. The majority of galaxies in the nearby universe are found in groups, and galaxies at all redshifts up to z~6 tend to cluster on the scale of nearby groups (~1 Mpc).
arxiv   +1 more source

Galaxies in group and field environments: a comparison of optical-NIR luminosities and colors [PDF]

open access: yesAstron.Astrophys.410:461-470,2003, 2003
We compare properties of galaxies in loose groups with those in field environment by analyzing the Nearby Optical Galaxy (NOG) catalog of galaxy systems. We consider as group galaxies, objects belonging to systems with at least five members identified by means of the "friends of friends method", and, as field galaxies, all galaxies with no companions ...
arxiv   +1 more source

Using member galaxy luminosities as halo mass proxies of galaxy groups

open access: yes, 2015
Reliable halo mass estimation for a given galaxy system plays an important role both in cosmology and galaxy formation studies. Here we set out to find the way that can improve the halo mass estimation for those galaxy systems with limited brightest ...
Lu, Yi, Shen, Shiyin, Yang, Xiaohu
core   +1 more source

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