the safety of hydrogen generation facilities is the main concern in their process operation. this study was conducted to identify the hazards and evaluate the risks of a hydrogen generation plant. for this purpose, prha (process hazard analysis) was applied for hazard identification while lopa (layer of protection analysis) was used for risk assessment. the study was conducted in the hydrogen p...

Anthropogenic global warming caused by CO2 emissions is strongly and fundamentally linked to future energy production. The Special Report on Emission Scenarios (SRES) from 2000 contains 40 scenarios for future fossil fuel production and is used by the IPCC to assess future climate change. Previous scenarios were withdrawn after exaggerating one or several trends. This study investigates underly...

This work presents a multiple objective linear programming (MOLP) model based on the desirability function approach for solving the aggregate production planning (APP) decision problem upon Masud and Hwang’s model. The proposed model minimises total production costs, carrying or backordering costs and rates of change in labor levels. An industrial case demonstrates the feasibility of applying t...

A novel formulation for combined scheduling and control of multi-product, continuous chemical processes is introduced in which nonlinear model predictive control (NMPC) and noncyclic continuous-time scheduling are efficiently combined. A decomposition into nonlinear programming (NLP) dynamic optimization problems and mixed-integer linear programming (MILP) problems, without iterative alternatio...

A reduction in CO2 emissions from transportation is of great significance to achieve the goal “peak carbon and neutrality” China. For 2003–2019, this paper calculates Shanghai constructs an extended STIRPAT (Stochastic Impacts by Regression on Population, Affluence, Technology) model for forecasting. The result shows that 2003 2019, total per capita Shanghai’s sector increased, but rate growth ...

To meet the ground test requirements of star sensors, we establish map simulation algorithm and interactive interface in multiple scenarios. The combination degradation model points, imaging noise model, attitude disturbance is introduced to solve problem different patterns existing actual measurement, improving traditional model. In addition, a user-friendly design makes it easier for both sch...

The accelerated urbanization process has resulted in increasingly prominent conflicts land resource utilization and caused numerous ecological environmental issues. Simulating the evolutionary patterns of use (LUCs) is foundation for promoting sustainable use. Markov GeoSOS-FLUS models were used to predict under three different development scenarios, analyze spatio-temporal characteristics LUCs...