Results 141 to 150 of about 183,763 (307)

Triboelectric–Electromagnetic Generator‐Enabled Hybrid Power Backpack for Self‐Powered Field Safety Management

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A lightweight hybrid backpack integrating SC‐TENGs and R‐EMGs harvests biomechanical energy during walking. With a low activation speed of 3 km h−1 and a high specific power of 0.18 W kg−1, it enables self‐powered field safety management. The power backpack refers to an energy‐harvesting solution engineered to mitigate battery reliance in wearable ...
Jie Chen   +6 more
wiley   +1 more source

Gear Tooth Root Stresses of a Very Heavily Loaded Gear Pair-Case Study: Orbiter Body Flap Actuator Pinion and Ring Gear [PDF]

open access: yes
The space shuttle orbiter's body flap actuator gearing was assessed as a case study of the stresses for very heavily loaded external-internal gear pairs (meshing pinion and ring gear).
Handschuh, Robert F., Krantz, Timothy L.
core   +1 more source

THE USE OF NUMERICAL ANALYSIS IN ORDER TO HIGHLIGHT THE FLUID DYNAMICS INSIDE A HYDRAULIC GEAR PUMP MODEL

open access: yesJournal of Industrial Design and Engineering Graphics, 2015
An experimental method for the investigation of hydraulic fluid flow inside a gear pump model was performed during this study. The external gear pump model was chosen because this volumetric unit is capable to take over the fluid at atmospheric pressure ...
Fanel Scheaua
doaj   +2 more sources

The EU Cities Mission: A Governance Innovation for Stockholm?

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Acknowledging that cities play a key role in climate change mitigation, the European Union (EU) launched the Cities Mission in 2021 to accelerate urban climate action. Intended as a governance innovation, it seeks to stimulate mission‐oriented governance in cities.
Lisa Sanderink   +2 more
wiley   +1 more source

Research of the Method of Selection of Modification Coefficient Value of the Planetary Involute Gear with Small Teeth Difference based on Matlab

open access: yesJixie chuandong, 2017
According to the definition of planetary gear transmission with small teeth difference,the selection of value of modification coefficient is the key in the design of planetary gear reducer with small teeth difference.
Feng Ding   +5 more
doaj  

Induction Hardening of External Gear

open access: yesIOP Conference Series: Materials Science and Engineering, 2018
V A Bukanin   +4 more
openaire   +1 more source

Open Space Policy‐Making and Planning in Urban Regions: Towards a Theoretical Approach Based on the Multiple Streams Framework

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Open space networks provide multiple ecosystem services and other benefits which are particularly important to urban regions. Accordingly, there are many examples around the world of urban‐regional open space policies such as regional parks and green belts that connect non‐built‐up areas over several municipalities. Yet it is still unclear how
Gerd Lintz, Mariam Diagayété
wiley   +1 more source

Coherence Between Climate and Land Use Polices of the European Union, Brazil, and Indonesia: A Primer to Analyze Potential GHG Leakage

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Incoherence between national land use policies may weaken climate mitigation efforts by creating conditions under which agricultural and forestry production and GHG emissions are displaced across borders (leakage). Coherence depends on constellations and prioritization of national policy aims in land use (production) and climate (conservation).
Heiner von Lüpke   +8 more
wiley   +1 more source

The Dynamics of the Policy Mix and Sectoral Gaps in South Korea's Decarbonization Transition

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT While a coherent policy mix is a fundamental prerequisite for successful energy transitions, existing frameworks predominantly rely on static evaluations. This horizontal approach fails to capture the deep temporal dynamics and physical inertia inherent in socio‐technical regime shifts.
Yong Hwan Kim, Kyung Nam Kim
wiley   +1 more source

Prediction of Pipeline Defect Depth and Classification Based on CatBoost

open access: yesEnergy Science &Engineering, EarlyView.
Obtaining detection data using in‐line pipeline inspection, the synthetic minority oversampling technique (SMOTE) is applied to expand the sample set, thereby increasing the number of minority‐class samples. This approach effectively improves minority‐class detection and enhances pipeline safety assessment. ABSTRACT Magnetic flux leakage detection is a
Cong Chen   +3 more
wiley   +1 more source

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