Results 71 to 80 of about 796 (172)

On‐Demand Schedules, Worker Absenteeism and Patient Dissatisfaction in Home Care Services

Journal of Operations Management, Volume 71, Issue 8, Page 1090-1114, December 2025.
ABSTRACT Service companies often adopt on‐demand scheduling to balance labor costs and fluctuating market demand. However, research shows that such practices can reduce worker productivity and retention. In this study, we examine how on‐demand scheduling affects two critical outcomes: worker absenteeism and patient dissatisfaction.
Antoaneta Momcheva, Fabrizio Salvador, Rocio Bonet, Marco Caserta   +3 more
wiley   +1 more source

Unified linear time-invariant model predictive control for strong nonlinear chaotic systems [PDF]

, 2016
It is well known that an alone linear controller is difficult to control a chaotic system, because intensive nonlinearities exist in such system. Meanwhile, depending closely on a precise mathematical modeling of the system and high computational ...
Chen, Zengqiang, Sun, Mingwei, Zhang, Yuan   +2 more
core   +2 more sources

Beyond the European Army Illusion: A Prudent Strategy for the Real European Zeitenwende

JCMS: Journal of Common Market Studies, Volume 64, Issue 3, Page 1272-1284, May 2026.
Benjamin Daßler, Moritz Weiss
wiley   +1 more source

Vibration Suppression of AMBs-High Speed Motor Using an Enhanced Linear Extended State Observer

IEEE Access
In order to solve the problem of rotor vibration caused by the unbalanced mass of the Active magnetic bearing (AMBs) rotor system, an Enhanced Linear Extended State Observer (ELESO) is designed based on the linear Extended State Observer (LESO). Firstly,
Lei Gong, Pai He, Dali Dai, Zhiguang Hua, Jingwen Chen   +4 more
doaj   +1 more source

Active Disturbance Rejection Control for Unmanned Aerial Vehicle [PDF]

This paper presents the design and analysis of a roll motion control system for a vertical take-off and landing of unmanned aerial car (VTOL-UAV) during the hovering flight phase.
Al-Khazraji, Huthaifa, Humaidi, Amjad J., Marwan, Hakam   +2 more
core   +1 more source

Environmentally Sustainable Development: The Role of Supply Chain Digitalization in Firms' Green Productivity

Sustainable Development, Volume 33, Issue 5, Page 7807-7825, October 2025.
ABSTRACT In the midst of the global push for environmental protection and sustainable development, supply chain digitalization (SCD) has become a key enabler of both operational efficiency and green production. The existent literature, however, has mainly focused on SCD's impact on operational efficiency, neglecting its role in advancing environmental ...
Ruixiang Xue, Tze San Ong, Assunta Di Vaio   +2 more
wiley   +1 more source

An Extend Sliding Mode Disturbance Observer for Optical Inertial Platform Line-of–Sight Stabilized Control

Machines
As the imaging distance and focal length of photoelectric systems increase, the requirements for line-of–sight stabilization of optical inertial stabilized platforms (ISPs) become higher.
Sansan Chang, Di Yang, Jianzhong Cao, Xiang Li   +3 more
doaj   +1 more source

Robust and Adaptive Backstepping Control for Hexacopter UAVs

IEEE Access, 2019
A nonlinear robust and adaptive backstepping control strategy is hierarchically proposed to solve the trajectory tracking problem of hexacopter UAVs. Due to the under-actuated and coupled properties of the hexacopter dynamics, the nominal backstepping ...
Juqian Zhang, Dawei Gu, Chao Deng, Bangchun Wen   +3 more
doaj   +1 more source

Performance Optimization of Dual Active Bridge Converter Based on Improved Linear Active Disturbance Rejection Control

Engineering Reports, Volume 7, Issue 9, September 2025.
In this paper, an improved linear active disturbance suppression control method is introduced to optimize the current stress and dynamic response of the dual active bridge DC‐DC converter through extended phase‐shift modulation, which improves the overall efficiency of the converter in microgrid systems.
Haijun Tian, Yuepeng Zhang, Mingsuo Yang, Zheng Zhou   +3 more
wiley   +1 more source

“Only the Blue‐Eyed Ones”: How Refugees' Origin and Gender Affect Selective Solidarity Through Perceived Similarity and Threat

Journal of Social Issues, Volume 81, Issue 3, September 2025.
ABSTRACT This paper investigates social psychological mechanisms underlying selective solidarity with refugees in two experimental studies conducted in Germany. We hypothesized, in line with the geopolitics of racialization and masculinization of refugees, and rooted in social–psychological theories, that refugee origin and gender affect expressions of
Tijana Karić, Frank Eckerle, Adrian Rothers, Zahra Khosrowtaj, Isabel Müller, Johannes Maaser, J. Christopher Cohrs   +6 more
wiley   +1 more source