Results 91 to 100 of about 79,831 (261)

Flood Debris in Spearfish Canyon, Spearfish SD, Lawrence County

open access: yes, 1966
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
core  

Fintech Policy and the Rise of Green Technological Inventions

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
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

open access: yesDeep Underground Science and Engineering, EarlyView.
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

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

open access: yesDeep Underground Science and Engineering, EarlyView.
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

open access: yesDeep Underground Science and Engineering, EarlyView.
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]

open access: yesTransport Problems, 2010
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

open access: yes, 1957
4 x 5 b/w negative, people stand in a cave with artificial lightingOrigin: Publicity Division SD Dept.
SD Department of Highways
core  

Steel segment–anchor bolt (cable) structure for TBM tunnels under extremely intense rockburst conditions: Design method and field application

open access: yesDeep Underground Science and Engineering, EarlyView.
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

open access: yes
4 x 5 b/w negative, mountain range covered in pine treesOrigin: Publicity Division SD Dept.
SD Department of Highways
core  

Synergistic Catalysis for Closed‐Loop Alcohol Refining: Concurrent H2 Evolution and Selective Oxidation

open access: yesEcoEnergy, EarlyView.
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

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