Results 91 to 100 of about 184,800 (205)

Research progress in sonar dome turbulent boundary layer wall fluctuating pressure

open access: yesZhongguo Jianchuan Yanjiu, 2018
A sonar dome structure mounted on the bulb of a high-speed ship vibrates under Turbulent Boundary Layer (TBL) wall pressure fluctuation and radiates noise inward.
XU Jiaqi, MEI Zhiyuan
doaj   +1 more source

Golden weapons and golden fetters: From the gold standard to the new geopolitics

open access: yesThe Economic History Review, EarlyView.
Abstract This paper explores the historical relationship between monetary regimes, security concerns, and geopolitical tensions, particularly focusing on the role of gold. Throughout history, monetary systems have been deeply intertwined with international state systems and security provisions.
Harold James
wiley   +1 more source

A rolling bearing life prediction method based on multi-task gated networks

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveTo achieve the remaining life prediction of bearings in ship mechanical equipment, a multi-task gated networks prediction model based on the Bidirectional Gated Recurrent Unit (BiGRU), Variational Autoencoder (VAE), and Multi-gate Mixture-of ...
Liuyang SONG   +5 more
doaj   +1 more source

Building a Potemkin village in occupied China: Japan's wartime system of linked trade, 1939–43

open access: yesThe Economic History Review, EarlyView.
Abstract The paper discusses the novel but little‐known exchange rate system of Japanese‐occupied North China during the Second Sino‐Japanese War, in which exporters were given the right to import in the form of a piece of yellow paper, which could be sold in the secondary market.
Shinji Takagi
wiley   +1 more source

Experimental study on uniaxial compressive strength characteristics of conventional model ice in tank

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveIn the ice-propeller milling or collision test, in order to accurately test the ice load of the propeller, it is very important to use model ice which satisfies similarity with the geometric and mechanical properties of real ice.MethodsUniaxial ...
Pei XU, Longhui LI, Chao WANG
doaj   +1 more source

Ship-owners' decisions to outsource vessel management [PDF]

open access: yes
Shipping companies frequently outsource the management of their vessels. In this paper, we use data from Lloyd's Register Fairplay (2009) on 45,456 vessels belonging to 9,580 different shipowners to investigate the extent of outsourcing in shipping and ...
François-Charles Wolff, Pierre Cariou
core  

Product Market Threats and Leases

open access: yesFinancial Management, EarlyView.
ABSTRACT We document robust evidence of increased corporate leasing in the presence of product market threats. This finding is robust to a battery of tests exploiting plausibly exogenous variation in product market threats to address the potentially endogenous nature of leasing and product markets, including Chinese import penetration, the granting of ...
Douglas (D. J.) Fairhurst   +3 more
wiley   +1 more source

Task reliability evaluation method for autonomous intelligent system based on multi-agent approach

open access: yesZhongguo Jianchuan Yanjiu
Objective Aiming at the problem that the task reliability of autonomous intelligent systems is difficult to evaluate accurately due to such characteristics as the decoupling of components, changing systems, and complex fault propagation laws, this paper ...
Cheng YANG   +3 more
doaj   +1 more source

Bridging the implementation gap in MCABC inventory management: from a taxonomy to practical archetypes

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract Despite increasing demands for resilient and sustainable supply chains, inventory management often relies on outdated single‐criterion analyses. While multi‐criteria ABC (MCABC) analyses provide a theoretically mature assessment of resilience‐sustainability‐benefit trade‐offs in inventory, their adoption remains limited due to fragmented ...
Lukas Grützner, Michael H. Breitner
wiley   +1 more source

STag marking visual guidance method for USV docking

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveAiming at the problem of accurate real-time pose acquisition in the autonomous recovery of an unmanned surface vehicle (USV), a STag marking visual guidance method for unmanned vehicle docking and recovery is proposed.Methods Due to the stable ...
Yongxin XIAO   +4 more
doaj   +1 more source

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