Results 51 to 60 of about 7,259 (217)

Exploring production of social and economic value in social enterprises through a business model framework

Strategic Change, EarlyView.
Abstract This study explores how social enterprises create social and economic value through business models that support ex‐offenders. The work was motivated by a request for help from an entrepreneur wishing to establish a business that supports ex‐offender rehabilitation.
Elizabeth Green, Peter Bradley, Glenn Parry   +2 more
wiley   +1 more source

Analysis of the traction forces of two adjacent linear induction motors

Scientific Reports
Linear induction motors (LIMs) are positioned head-to-tail in medium and low-speed maglev (MLSM) trains, and the interaction due to small spacing between two LIMs is not yet clear.
Min Zhang, Shujuan Luo, Yu Liu, Xubin Zhuang, Weihua Ma   +4 more
doaj   +1 more source

Study on the Vibration Behaviour of Locomotives Under Wheel Polygon Excitation and Its Quantitative Detection Method

IEEE Access
Wheel polygons can significantly impair the operational quality, service life and ride comfort of railway systems and even threaten the safety of train operations.
Weiwei Gan, Zhonghao Bai, Qinglin Xie, Bingguang Wen, Xinyu Qian, Zhigang Hu, Gongquan Tao, Zefeng Wen, Kan Liu   +8 more
doaj   +1 more source

Land Use Transformation and Climate Resilience in Smart Cities: Role of ICT in Modern Urban Planning

Land Degradation &Development, EarlyView.
ABSTRACT Modern urban planning is experiencing a transition from traditional planning to the integration of information technology, which defines the concept of a “smart city”. The study analyses the evolution of urban planning practices with an emphasis on the role of engineering and architecture in the process of urbanization, the transition to the ...
Dariusz Cichoń
wiley   +1 more source

Thermo-mechanical Coupling of Pantograph-Catenary System under Different Ambient Temperatures

Chengshi guidao jiaotong yanjiu
[Objective] Under extreme ambient temperatures, issues such as excessive temperature rise and intensified contact force fluctuation readily occur in the PC (pantograph-catenary) contact zone.
JIANG Hangyan, ZHOU Ning, GAO Haixiang, LI Mudi, LUO Jianwei, ZHANG Weihua   +5 more
doaj   +1 more source

Robustness Assessment of Public Transport Networks in Various Graph Representations: Systematic Review, Decision Support, and Case Study

Networks, EarlyView.
ABSTRACT The analysis of certain properties of the underlying graph of a public transport network generates insights about the network's structure. Hereby, the choice of the graph representation depends on a trade‐off between complexity reduction and information preservation to adequately model a public transport network.
Michael Palk, Stefan Voß, Raka Jovanovic   +2 more
wiley   +1 more source

Life Cycle Assessment of Closed‐Loop Opaque Recycled Polyethylene Terephthalate (rPET) Bottles for UHT Milk

Packaging Technology and Science, EarlyView.
The study quantifies environmental impacts of 1 L of ultra‐high‐temperature milk bottles, comparing a 50% recycled opaque PET (rPET) bottle with 100% virgin PET bottles under closed‐loop and non‐closed‐loop recycling scenarios. Results show that 50% opaque rPET bottles outperform 100% virgin PET bottles across all impact categories, enabled by an ...
Alessandra Garzoni, Roberta Stefanini, Giuseppe Vignali   +2 more
wiley   +1 more source

Impact Response of Composite Material Equipment Cabin Floor Considering Strain Rate Effects

Chengshi guidao jiaotong yanjiu
ObjectiveCFRP (carbon fiber reinforced polymer) and GFRP (glass fiber reinforced polymer) have been applied to the structure of rail transit vehicle equipment cabin.
Yuke WANG, Shoune XIAO, Dongdong CHEN, Chunyan LIU, Tao ZHU, Mingmeng WANG   +5 more
doaj   +1 more source

Rate-temperature coupled deformation mechanism and constitutive parameters of catenary copper-magnesium alloy materials for high-speed railway

Baozha yu Chongji
With the increasing speed of trains, the impacts of mechanical shock, arc heat, and Joule heat on the high-speed railway catenary system have become increasingly significant.
Hongli WANG, Zelin ZENG, Xingya SU, Jing LING, Guiming MEI, Yanxiang LIANG, Lin JING   +6 more
doaj   +1 more source

Subterranean Mine Inspection Using the Prometheus Re‐Configurable Drone

Journal of Field Robotics, EarlyView.
ABSTRACT This paper describes the design, development, and real‐world testing of an autonomous drone for subterranean exploration, known as “Prometheus.” Driven by requirements from industry that the drone be able to be deployed through areas of restricted access, Prometheus was designed to be directly deployed through a 150 mm aperture.
Liam Brown, Robert Clarke, Ali Akbari, Ferdian Jovan, Jameel Marafie, Ognjen Marjanovic, Sara Bernardini, Tom Richardson, Simon Watson   +8 more
wiley   +1 more source