Results 21 to 30 of about 15,221 (293)

Excited‐State Antiaromaticity in Nonbenzenoid Aromatics: Examining the Dynamics of Intramolecular Proton Transfer With a Small Driving Force

open access: yesAngewandte Chemie, EarlyView.
The excited‐state antiaromaticity of hydroxybenzotropyliums (HBTs) can be tuned through substituent effects to bring the aromatic ‘enol’ (E) and keto (K) tautomers close in energy. This leads to abnormally slow excited‐state proton transfer (on the ns timescale), giving rise to dual fluorescence emission and weak photoacidity.
Promeet K. Saha   +6 more
wiley   +2 more sources

Position-pose measurement of crane sway based on monocular vision

open access: yesThe Journal of Engineering, 2019
The method of spatial positioning and pose measurement using computer vision have been widely used in satellite docking, motion control systems, navigation and guidance areas. A monocular vision measurement method of the telescope's spatial pose based on
Fu Xing-yu, Niu Dan, Li Qi, Liu Jin-bo
doaj   +1 more source

Cranes and Crops: Investigating Farmer Tolerances toward Crop Damage by Threatened Blue Cranes (Anthropoides paradiseus) in the Western Cape, South Africa

open access: yes, 2016
The Western Cape population of Blue Cranes (Anthropoides paradiseus) in South Africa is of great importance as the largest population throughout its range.
Julia L. van Velden   +5 more
core   +1 more source

Analysis of production funds efficiency in the country’s crane sector / Gamybinių fondų efektyvumo analizė Respublikos kranų sektoriuje

open access: yesMokslas: Lietuvos Ateitis, 2012
The article deals with methodological aspects of the production funds analysis. In this work the study of literature which examines the basic and transferable funds is presented.
Edita Valėnaitė   +1 more
doaj   +1 more source

A fuzzy logic approach to the selection of cranes

open access: yes, 1999
This paper presents a fuzzy logic approach to select the best crane type in a construction project from the main crane types, namely, mobile, tower and derrick cranes.
A.S. Hanna   +3 more
core   +1 more source

Moving loads in structural dynamics of cranes: Bridging the gap between theoretical and practical researches [PDF]

open access: yesFME Transactions, 2013
The moving load problem is one of the fundamental problems in structural dynamics. A lot of work has been reported during more than a century ago dealing with the dynamic response of structures at first in the field of transportation such as railway ...
Zrnić Nenad   +3 more
doaj  

Pareto analysis application in research of crane related accidents [PDF]

open access: yesTehnika, 2020
Previous research show that the safety aspects of cranes are not well researched. So, the first aim of this research is to collect and analyze data about crane related accidents that took a place between 1985 and 2018 in 71 countries worldwide with the ...
Brkić Aleksandar Đ.   +3 more
doaj  

Conservation-related knowledge, interactions, and attitudes of local people toward Grey Crowned-Cranes ( Balearica regulorum ) in Tanzania

open access: yesAvian Conservation and Ecology, 2023
The endangered Grey Crowned-Crane ( Balearica regulorum ) occurs extensively in agricultural areas and grasslands outside of protected areas in Tanzania, posing high potential for conflict with people.
Bridget B. Amulike   +2 more
doaj   +1 more source

Habitat use, preference, and utilization distribution of two crane species (Genus: Grus) in Huize National Nature Reserve, Yunnan–Guizhou Plateau, China [PDF]

open access: yesPeerJ, 2018
Understanding the habitat use and spatial distribution of wildlife can help conservationists determine high-priority areas and enhance conservation efforts.
Dejun Kong   +6 more
doaj   +2 more sources

Organizational and Technological Solutions for Performing Works Using Specialty Equipment [PDF]

open access: yesE3S Web of Conferences, 2019
Relevance of applying factory-assembled unit installation method in the contemporary construction is stated. Foreign experience is shown and main foreign manufacturers of crawler cranes and gantry cranes are given.
Zhadanovsky Boris, Bazanov Vladimir
doaj   +1 more source

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