Results 91 to 100 of about 79,831 (261)
Flood Debris in Spearfish Canyon, Spearfish SD, Lawrence County
2 x 2 b/w negative, flood debris in the rocks near a canyon wallOrigin: Publicity Division SD Dept. of Highways PierreSpearfish Canyon Washout. Spring 1966.
SD Department of Highways
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Fintech Policy and the Rise of Green Technological Inventions
ABSTRACT Technological transformation can enhance enterprises' green invention by promoting knowledge spillovers, alleviating financial constraints, and supporting innovative business models. Within this framework, our study investigates the effect of technological infrastructure construction on green technology invention, using the ‘Fintech China ...
Tao Huang +3 more
wiley +1 more source
Carbon emission assessment of tunnel infrastructures: From construction to operation
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long +4 more
wiley +1 more source
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu +3 more
wiley +1 more source
Developing a universal tunnel span classification from global tunnel databases
A universal tunnel span classification system is introduced that incorporates tunnel span, cross‐sectional area, typical tunnel types, and intended uses. Representative flatness ratio values are also provided for each span class. The classification is derived from a comprehensive database of 450 tunnel profiles from 47 countries.
Simon Heru Prassetyo +8 more
wiley +1 more source
Traffic flow forecasting based on no complete highway database [PDF]
In accordance with the Guidelines for working out highway prefeasibility studies (made under the authority of the World Bank), it can be said traffic flows forecasting is the base for preparing of other phases of road network management.
Gjorgji MANCESKI +1 more
doaj
People in Wind Cave, Custer County
4 x 5 b/w negative, people stand in a cave with artificial lightingOrigin: Publicity Division SD Dept.
SD Department of Highways
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The graphical abstract presents a steel segment–anchorage support system for open TBM tunnels under extremely intense rockburst conditions. The steel segment resists dynamic impact, while the anchorage structure restrains segment deformation and transfers loads into the rock.
Zhijun Li +4 more
wiley +1 more source
View of the Needles, Custer SD, Custer County
4 x 5 b/w negative, mountain range covered in pine treesOrigin: Publicity Division SD Dept.
SD Department of Highways
core
Photocatalytic, electrocatalytic, and photoelectrocatalytic systems exhibit a clear synergistic integration logic in closed‐loop alcohol refining—concurrently driving hydrogen evolution and selective alcohol oxidation to enable the directed conversion of alcohols into high‐value chemicals.
Wei Ren +7 more
wiley +1 more source

