Results 61 to 70 of about 658 (194)

Governing Transnational Commons: How International Treaties and Multi‐Stakeholder Organizations Shape Cooperation and Conflict

Journal of Management Studies, EarlyView.
Abstract When common‐pool resources such as freshwater, clean air, and fisheries span national borders, the collective action problems encountered are particularly severe. This study explores the role of polycentric governance systems in overcoming these pressing problems, which frequently underlie global grand challenges. Integrating political economy
Amol M. Joshi, David Antons, Erk P. Piening, Christina Dienhart, Torsten‐Oliver Salge   +4 more
wiley   +1 more source

Improved hybrid modular multilevel converters with dc short-circuit fault ride-through capacity

The Journal of Engineering, 2018
Modular multilevel converter (MMC) has become a promising converter alternative for transmission voltage-source converter high-voltage direct current applications. The main issue and challenge of MMC is how to handle the dc short-circuit fault.
Yuhang Lei, Gangquan Si, Jianwei Zhu, Yanbing Zhang   +3 more
doaj   +1 more source

Navigating the Power of the Purse—Fiscal Irresponsibility, Process Failures, and the New Constitutional Stress Test

Public Administration Review, EarlyView.
ABSTRACT The federal government, and its budget process, are facing unprecedented challenges. The federal debt is at historic levels, the process is in disarray, and the constitutional balance of powers is being challenged as never before. The debt, driven by growth in entitlement spending, stands at $38 trillion and is projected to continue to grow if
Carolyn Bourdeaux, G. William Hoagland, Philip G. Joyce, Thomas S. Kahn, Elaine Y. Lu   +4 more
wiley   +1 more source

Fault Ride-Through Control and Protection Coordination Analysis of Wind Farms via Flexible DC Transmission Systems

Electricity
To address the critical issue of low reliability caused by fault impacts in large-scale wind farms transmitting power over long distances via flexible DC transmission systems, this study proposes a collaborative solution.
Hao Wang, Wenyue Zhou, Yiping Luo
doaj   +1 more source

Transboundary Spanning in Social Movements: Organizational Structure and Antiracism in the US Extinction Rebellion Movement

Sociological Forum, EarlyView.
ABSTRACT This paper introduces transboundary spanning as a novel concept for social movement analysis. Using Extinction Rebellion (XR) in the United States as a case study, we examine the relational dynamics of social movement boundary spanning: processes wherein actors and organizations engage across symbolic boundaries.
Tobias Müller, Peter Gardner
wiley   +1 more source

A study on fault ride-through strategies for mine DC power supply systems based on FBSM-MMC

矿业科学学报
Direct current(DC)power supply system is a key technology for enhancing the power supply efficiency and safety of underground mining equipment due to its excellent voltage stability and little reactive power losses. However, its inherent low-impedance is
HAN Shengguang, YAN Junjie, GAO Yan, WANG Yanwen, KOU Zhixing   +4 more
doaj   +1 more source

DC transformer requirements and fault operation analysis in PV medium voltage DC power collection system

The Journal of Engineering, 2019
The large PV medium-voltage (MV) DC power collection system is more efficient than the traditional AC collection system, which provides an alternative for future PV applications.
Xi Xinze, Wang Jianhua, Gao Shang, Zhang Mingqin, Li Peixin, Luo Fangfang, Gu Wei   +6 more
doaj   +1 more source

The Effects of AI‐Powered Genre‐Based Writing Instruction on Low‐Proficiency EFL Writers' Ideal L2 Writing Self, Writing Enjoyment and L2 Writing Performance: A Quasi‐Experimental Mixed‐Methods Study

European Journal of Education, Volume 61, Issue 3, September 2026.
ABSTRACT This mixed‐methods study examined the effects of DeepSeek‐powered genre‐based instruction (GBI) on argumentative writing performance, ideal L2 writing self, and writing enjoyment among 71 low‐proficiency EFL undergraduates. A quasi‐experimental design was employed, with an experimental group (N = 32) receiving 6 weeks of AI‐powered GBI and a ...
Shang Shi, Yongxiang Wang
wiley   +1 more source

A comprehensive coordinated control strategy of MMC-HVDC system for frequency support and DC overvoltage suppression

International Journal of Electrical Power & Energy Systems
To enhance frequency support and fault ride-through capabilities of MMC-HVDC system, an MMC multi-time scale coordinated control strategy considering the regulation dead zone is proposed, which achieves wide-area coordinated complementarity of multiple ...
Shouqi Jiang, Demao Lu, Guoqing Li, Yechun Xin, Lixin Wang, Mingze Zhang   +5 more
doaj   +1 more source

War as a Phenomenon of Inquiry in Management Studies

Journal of Management Studies, Volume 63, Issue 6, Page 2363-2397, September 2026.
Abstract We argue that war as a phenomenon deserves more focused attention in management. First, we highlight why war is an important and relevant area of inquiry for management scholars. We then integrate scattered conversations on war in management studies into a framework structured around three building blocks – (a) the nature of war from an ...
Fabrice Lumineau, Arne Keller
wiley   +1 more source