Results 41 to 50 of about 2,868 (215)

From Bench to Bulk: Investigating Kinetics, Recyclability, and Scale‐Up of ZIF‐67

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Zeolitic imidazolate framework‐67 (ZIF‐67), a subclass of metal–organic frameworks (MOFs), has garnered considerable attention due to its high surface area, open crystal structure, tunable porosity, and potential applications in gas separation, catalysis, and carbon capture.
Aaush Bhardwaj Singh   +1 more
wiley   +1 more source

Influence of Zn2+ and Oxygen Supply on Malic Acid Production and Growth of Aspergillus oryzae

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Malic acid is a valuable platform chemical traditionally derived from fossil‐based resources. Microbial cultivation with Aspergillus oryzae offers a sustainable alternative based on renewable feedstocks. In this study, a well‐established minimal medium for malic acid production, commonly used in previous research to ensure reproducibility, was
Lukas Hartmann   +3 more
wiley   +1 more source

Structural characteristics analysis of extra–high–head pump–turbine-unit under extreme-pressure working-conditions [PDF]

open access: yesE3S Web of Conferences
During transient processes in extra–high–head pumped–storage power plants, the prototype pump–turbine-units must be able to withstand sudden changes in water pressure within the delivery system.
Huang Xiaoying   +5 more
doaj   +1 more source

Think Global, Act Local? Fortune 500 Business Strategies for Sustainable Cities and Communities (SDG 11)

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The role of business towards achieving the 17 Sustainable Development Goals (SDGs) has been well established. However, SDG contextualization continues to pose a conundrum, particularly for firms operating in multiple contexts. This becomes even more problematic in the case of SDG 11, the only goal in the sustainable development agenda directly
Andreas Georgiou
wiley   +1 more source

The Use of Renewable Energy in Prominent City Buildings: A Diffusion Study on Top European Football Organizations

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The present study applied the diffusion of innovation theory to investigate the rate of diffusion of renewable energy sources used by Europe's top professional football stadiums and the relationship with carbon neutrality. A discrete diffusion model estimated the diffusion of renewable energy to saturation, and a multivariate logistic ...
Chad S. Seifried   +2 more
wiley   +1 more source

The Francis Pump Turbine With Stochastic Blades

open access: yesProcedia Engineering, 2012
AbstractIn the article are introduced a special hydraulic designs of pump Francis turbines. There are compared characteristics of classical pump Francis turbine and stochastic blade pumps Francis turbine. There are introduced pump Francis turbines with inserted splitter blades in the runner and pump Francis turbines with stochastic blade cascade.
Pochylý, František   +2 more
openaire   +1 more source

Special Pressure Fluctuation analyse of the pump turbine

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract In the 13th five-year planning, the pumped storage power stations have speeding up. A large number of pumped storage power stations will been installed. The current development of modern pump storage plants aims towards a higher flexibility and stability in operation, an extended operation range of the hydraulic machine.
D M Liu   +6 more
openaire   +1 more source

The “Skipping Rope” Technique: A Novel Strategy for Distal Burr Entrapment During Rotational Atherectomy

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT We describe the “skipping rope technique” for managing burr entrapment during rotational atherectomy. Sequential counterclockwise rotational force is applied to the drive shaft, generating alternative torque dynamics. This maneuver provides a safe method to disengage a stuck rotaburr, offering operators an additional strategy for this ...
Thomas J. Ford   +3 more
wiley   +1 more source

Calibration of flow differential pressure coefficients on pump-turbine by thermodynamic method

open access: yesEnergy Informatics
On-line monitoring of flow rate is rather important to evaluate the water consumption of the pump-turbine and the overall efficiency of the pumped storage station.
Wenkui Zhang   +4 more
doaj   +1 more source

Numerical Simulation and Computational Flow Characterization Analyses of Centrifugal Pump Operating as Turbine

open access: yesComplexity, 2021
Using a pump in reverse mode as a hydraulic turbine remains an alternative for hydropower generation in meeting energy needs, especially for the provision of electricity to remote and rural settlements.
Du Jianguo   +5 more
doaj   +1 more source

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