Results 231 to 240 of about 52,331 (336)

Cooperative Ammonia Formation Catalyzed by Molybdenum and Samarium Complexes

Angewandte Chemie, Volume 137, Issue 32, August 4, 2025.
A series of newly prepared samarium complexes were found to work as effective PCET catalysts to facilitate the molybdenum‐catalyzed ammonia formation from dinitrogen under ambient reaction conditions. This is the first successful example of samarium complexes working as effective catalysts over 300 times to facilitate the transfer of protons and ...
Taichi Mitsumoto, Taiji Nakamura, Hiromasa Tanaka, Kazunari Yoshizawa, Yoshiaki Nishibayashi   +4 more
wiley   +2 more sources

Astigmatism research and application of vector method of the last half century: a bibliometric and visualized analysis. [PDF]

Front Med (Lausanne)
Zhang J, Xu L, Shan M, Yuan L, Dong Y, Wang Y.   +5 more
europepmc   +1 more source

I. Communication from the secretary of state for India relative to pendulum observations now in progress in India in connexion with the great trigonometrical survey under the superintendence of colonel J. T. Walker, R. E., F. R. S [PDF]

, 1871
J. T. Walker
openalex   +1 more source

Twenty‐Five Years of Probabilistic Fault Displacement Hazard Assessment

Reviews of Geophysics, Volume 63, Issue 3, September 2025.
Abstract Fault displacement hazard poses significant risks to critical infrastructure such as buildings, roads, and pipelines. While some structures can tolerate a certain degree of surface displacement, others, such as buildings, are far more vulnerable. Probabilistic Fault Displacement Hazard Assessment (PFDHA) quantifies the probability of exceeding
A. Valentini, F. Visini, P. Boncio, O. Scotti, S. Baize   +4 more
wiley   +1 more source

PGMweb: an online tool for visualizing the X-ray beam path through plane grating monochromators. [PDF]

J Synchrotron Radiat
Wang PY, Bazan da Silva M, Hand M, Wang H, Chang P, Beilsten-Edmands V, Kim TK, Lee TL, Sawhney K, Walters AC.   +9 more
europepmc   +1 more source

Skeleton‐Based Posture Recognition for Home Care From Virtual Unmanned Aerial Vehicle

Expert Systems, Volume 42, Issue 9, September 2025.
ABSTRACT This article presents a novel approach for real‐time posture recognition in monitoring scenarios, utilising a virtual camera simulated on a UAV within virtual environments. Leveraging the MediaPipe Pose library, key points of the body skeleton are extracted, focusing on a subset of 8 key points for computational efficiency.
Andrés Bustamante, Lidia M. Belmonte, António Pereira, Rafael Morales, Antonio Fernández‐Caballero   +4 more
wiley   +1 more source

Multi-stage gaze-controlled virtual keyboard using eye tracking. [PDF]

PLoS One
Emile Tatinyuy V, Noumsi Woguia AV, Ngono JM, Fono LA.   +3 more
europepmc   +1 more source

A New Flood Routing Framework Based on Modified Muskingum Model and Nature‐Based Optimization Algorithms

Journal of Flood Risk Management, Volume 18, Issue 3, September 2025.
ABSTRACT This study presents a new flood routing method integrating the modified Muskingum (NLM7_Aqlat) method with hybrid natural optimization algorithms (hybrid of Humboldt squid optimization algorithm [HSOA] and gradient‐based optimizer [GBO] and hybrid of Pine cone optimization algorithm [PCOA] and GBO).
Mahdi Valikhan Anaraki, Saeed Farzin
wiley   +1 more source

Technical Assessment of the Targeting Accuracy of Stereotactic Frames. [PDF]

Cureus
Weidlich GA, Marianayagam NJ, Wiggers R, Adler JR.   +3 more
europepmc   +1 more source

Spherical Trigonometry with Naval and Military Applications

, 1942
O. G. Harrold, Lyman M. Kells, Willis F. Kern, James R. Bland   +3 more
openalex   +2 more sources