Results 121 to 130 of about 83,260 (295)

The Most Powerful Telescope in Existence [PDF]

, 1879
E. Neison
openalex   +1 more source

New Neighbors on the Road: Bee‐Eaters Abandon Traditional Colonies Along Marsh Borders

The Bulletin of the Ecological Society of America, EarlyView.
Jacinto Román, Julio Blas, Giulia Bastianelli, Miguel A. Suárez‐Couselo, Eloy Revilla, Marcello D'Amico   +5 more
wiley   +1 more source

Dielectrophoresis Tutorial: Inspired by Hatfield's 1924 Patent and Boltzmann's Theory and Experiments of 1874

ELECTROPHORESIS, EarlyView.
ABSTRACT The first patent to describe dielectrophoresis (DEP) as a means and process to separate particles from a mixture was granted by the US Patent Office to Henry Stafford Hatfield in 1924. The novel methods of sample preparation and designs of electrode geometry covered by the patent's disclosures and claims describe the basis for most present‐day
Ronald Pethig
wiley   +1 more source

Design and Analysis of Optical Telescope Subsystem

Havacılık ve Uzay Teknolojileri Dergisi
In the realm of space exploration, there is a notable upsurge in advanced remote imaging systems, particularly in CubeSats, owing to their efficiency and increasing payload capacities.
Alper Şanlı, Tuncay Yunus Erkeç
doaj  

LXVIII. A method of working the object glasses of refracting telescopes truly spherical. By the late Mr. James Short, F. R. S [PDF]

openalex   +1 more source

Research and Experimental Verification of the Dynamic Pose Analysis Method of Advanced Hydraulic Support in a Fully Mechanized Mining Face

Energy Science &Engineering, EarlyView.
The advanced hydraulic support is modeled as a closed‐loop 10‐degree‐of‐freedom robotic arm. Based on the improved D–H parameter method, forward kinematic analysis is performed under left and right column driving conditions, and a follower model is constructed considering mechanical constraints.
Zhang Kun, Ma Kailun, Zhang Zhaoyun, Cui Bin, Xu Yajun, Wei Xuntao, Chen Yong, Zhang Zengbao, Kong Xiangjun, Chen Hongyan, Tian Dan, Yi Ran, Du Mingchao   +12 more
wiley   +1 more source

IV. On the power of penetrating into space by telescopes; with a comparative determination of the extent of that power in natural vision, and in telescopes of various sizes and con­structions; illustrated by select observations [PDF]

William Herschel
openalex   +1 more source

Application of Subcritical Water Extraction and Enzymatic Hydrolysis as a Combination Green Extraction Technique for Rambutan (Nephelium lappaceum L.) Peel Polyphenol

Food Frontiers, EarlyView.
ABSTRACT This study aimed to develop a green and efficient technique for extracting rambutan peel polyphenols, while systematically evaluating chemical components, the water solubility, storage stability, in vitro antioxidant activity, and digestive enzyme inhibitory potential of the extracts.
Qiuming Liu, Qingyu Ma, Jiao Li, Liping Sun, Yongliang Zhuang, Yuanlong Tang   +5 more
wiley   +1 more source

On the stellar parallax plates taken with the Yerkes telescope.

, 1904
Frank Schlesinger
openalex   +1 more source

Note with respect to the Invention of the Achromatic Telescope [PDF]

, 1886
A. C. Ranyard
openalex   +1 more source