Results 181 to 190 of about 47,495 (346)

Recycling of Mill Scale Into High‐Purity Iron Through Hydrogen‐Based Reduction

steel research international, EarlyView.
Mill scale, an iron oxide–rich steel by‐product, is difficult to recycle due to impurities. This study evaluates hydrogen‐based direct reduction and hydrogen plasma smelting reduction as low‐carbon recycling routes. Impurity segregation limits reduction kinetics. Direct reduction achieves 92% conversion in 180 min, while plasma reduction reaches 91% in
Nathalia C. Verissimo, Anumoy Ganguly, Lucas Varoto, Tim M. Schwarz, Jean‐Baptiste Letz, Ubaid Manzoor, Laurine Choisez, Dierk Raabe, Isnaldi R. Souza Filho   +8 more
wiley   +1 more source

Kerentanan Kesejahteraan Gig Worker di Indonesia Pascapandemi

, 2023
Christiayu Natalia, FX Gugus Febri Putranto   +1 more
openalex   +2 more sources

Development and Validation of a Next‐Generation Mechanistic Model of the Electric Arc Furnace

steel research international, EarlyView.
This study presents a next‐generation mechanistic model of the electric arc furnace (EAF). It describes equations for all crucial processes appearing during the steel‐recycling process in an EAF, i.e., thermal, mass, and chemical. The model was parameterized and validated using industrial EAF data.
Vito Logar, Igor Škrjanc
wiley   +1 more source

Gender differences in job satisfaction among gig workers in Bangladesh. [PDF]

Sci Rep
Sarker MR, Taj TA, Sarkar MAR, Hassan MF, McKenzie AM, Al Mamun MA, Sarker D, Bhandari H.   +7 more
europepmc   +1 more source

Double Slag Operating Standard for Mitigation of CO2 Emissions in Basic Oxygen Steelmaking

steel research international, EarlyView.
Basic oxygen furnace (BOF) steelmaking uses a double slag process (DSP) to produce low‐phosphorus steel. To reduce carbon emissions in a BOF, the hot metal ratio (HMR) must be lowered. The present article describes the optimal conditions for DSP operations under low‐HMR conditions: temperature of 1360 ± 5 °C, total Fe content of 10 ± 2 wt%, basicity (=
Kyung Hwan Kim, Joo Hyun Park
wiley   +1 more source

Incentivizing the Dynamic Workforce: Learning Contracts in the Gig-Economy

, 2018
In principal-agent models, a principal offers a contract to an agent to perform a certain task. The agent exerts a level of effort that maximizes her utility.
Cohen, Alon, Deligkas, Argyrios, Koren, Moran   +2 more
core  

POLICY SUPPORT AND BEHAVIOURAL DETERMINANTS OF INVESTMENT BEHAVIOUR AMONG GIG WORKERS IN BENGALURU

V Prathibha, PRAMOD KUMAR PANDEY
openalex   +1 more source

The Rise of Gig Economy: Redefining Work, Wages, Worker Autonomy and the Challenges of Classification [PDF]

Nandini Sharma, Chitra Rathore -
openalex   +1 more source

Modeling the Thermal Properties of Hydrogen‐Based Direct Reduced Iron Using Computational Thermodynamics and Machine Learning

steel research international, EarlyView.
Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri, Petri Sulasalmi, Pasquale Cavaliere, Ville‐Valtteri Visuri   +3 more
wiley   +1 more source

A Price Too High: Injury and Assault among Delivery Gig Workers in New York City. [PDF]

J Urban Health
Laskaris Z, Hussein M, Stimpson JP, Vignola EF, Shahn Z, Cohen N, Baron S.   +6 more
europepmc   +1 more source