Results 111 to 120 of about 8,174 (251)

Analysis of the Efficiency of Slope Evacuation for Dense Crowds in Urban Street-Type Public Spaces

Applied Sciences
Street-type spaces, characterized by their relative closedness and propensity for human congregation, inherently carry potential safety evacuation risks. In order to study the influence of slopes on the evacuation efficiency of pedestrians in street-type
Kailing Li, Tiantian Yao, Xue Lin, Xiaoye Lin, Xiaogang You   +4 more
doaj   +1 more source

Environmentally adjusted productivity growth and shadow prices for dairy farms

Canadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, EarlyView.
Abstract We estimate the environmentally adjusted productivity growth and shadow price for Ontario dairy farms. We use an input‐oriented directional distance function and farm‐level data from 2000 to 2020. First, we find that while GHG emissions per cow increase with higher milk yields, emission intensity decreases as milk yield per cow increases.
Bibek Dahal, Getu Hailu, Susantha Jayasundara   +2 more
wiley   +1 more source

Simulation of Evacuation Characteristics Using a 2-Dimensional Cellular Automata Model for Pedestrian Dynamics

Journal of Applied Mathematics, 2013
In public places, the high pedestrian density is one of the direct causes leading to crowding and trample disaster, so it is very necessary to investigate the collective and evacuation characteristics for pedestrian movement. In the occupants’ evacuation
Liqiang Ji, Yongsheng Qian, Junwei Zeng, Min Wang, Dejie Xu, Yan Yan, Shuo Feng   +6 more
doaj   +1 more source

Fire Source Position Strategy for Chemical Plants Based on Image and Numerical Simulation Technology

Chemical Engineering Transactions, 2018
In order to ensure the safety of chemical plants, this paper analyzes the image and numerical simulation technology applied by chemical plants to position the fire source and carry out the fire protection. Actual researches and simulation computation are
Guoyong Wang, Mingzhao Li
doaj   +1 more source

Simulating Panic In Crowds During Evacuations

, 2019
The layout of a room plays an important role in how effectively it can be evacuated. In particular, the locations and number of exits in a room affect how effective an evacuation is. What also affects the effectiveness of evacuations is panic behaviour and injuries.
Runelöv, Hannes, Håkansson, Lisa
openaire   +1 more source

Freight distribution optimization by implementing the team orienteering problem with occasional drivers

International Transactions in Operational Research, EarlyView.
Abstract This research evaluates the effectiveness of a hybrid crowdshipping system that integrates occasional drivers with traditional delivery services (OD+TD) to improve the efficiency of freight distribution. By implementing the team orienteering problem with occasional drivers model, we develop a mathematical model and an agile optimization ...
Alisson Garcia‐Herrera, Xabier A. Martin, Adrian Serrano‐Hernandez, Angel A. Juan, Javier Faulin   +4 more
wiley   +1 more source

Do robots boost productivity? A quantitative meta‐study

Journal of Economic Surveys, EarlyView.
ABSTRACT This meta‐study analyzes the productivity effects of industrial robots. More than 1800 estimates from 85 primary studies are collected. The meta‐analytic evidence suggests that robotization has so far provided, at best, a small boost to productivity. There is strong evidence of publication bias in the positive direction.
Florian Schneider
wiley   +1 more source

Evaluating Classroom Evacuation with Crowd Simulation

, 2018
Effective organization of evacuation routes inside rooms needs to be considered when designing the layout. Studies have shown that an ineffective evacuation can in itself be the cause of injuries in emergency situations. This thesis examines how exit configurations and different layouts in classrooms will impact evacuation time using crowd simulation ...
Liu, Willy, Parhizgar, Daniel
openaire   +1 more source

Is There Fairness in AI?

Journal of Management Studies, EarlyView.
Abstract As predictive artificial intelligence (AI) technologies increasingly steer workplace decisions, debates around fairness have intensified. Existing research often approaches fairness either as a set of universal principles supported or undermined by algorithms, or as a product of social interpretations, thereby providing either technologically ...
Elmira van den Broek, Anastasia Sergeeva, Marleen Huysman   +2 more
wiley   +1 more source

Carbon Populism and Representative Politics: On Why Fossil Fuel Firms Speaking for ‘The People’ Is a Bad Idea

Journal of Management Studies, EarlyView.
Abstract Despite growing recognition that countries around the world must transition to a low‐carbon economy, global greenhouse gas emissions continue to rise. One way that decarbonization has been obstructed, we argue, is by fossil fuel firms intentionally conflating their agenda with ‘the people’, evoking notions of national identity, security and ...
Daniel Nyberg, Christopher Wright, Vanessa Bowden, Peter Fleming   +3 more
wiley   +1 more source