Results 71 to 80 of about 3,205,366 (285)

Tracking control based on proportional resonant controller for electro‐hydraulic systems with input delay

open access: yesIET Control Theory & Applications, 2023
The growth of marine resources exploitation has led to increased research interest in electro‐hydraulic systems for marine simulation. This study proposes a proportional plus resonant (PR) controller to achieve high tracking performance for electro ...
Shengwang Ye   +5 more
doaj   +1 more source

Industrial Policy: Lessons from Shipbuilding

open access: yesJournal of Economic Perspectives
Industrial policy has been used throughout history in some form or other by most countries. Yet, it remains one of the most contentious issues among policy makers and economists alike. In part, this is because the empirical evidence on whether and how it should be implemented remains slim.
Panle Jia Barwick   +2 more
openaire   +2 more sources

The cost of the consumer revolution: Prices, material living standards, and real inequality in Amsterdam (1630‒1805)

open access: yesThe Economic History Review, EarlyView.
Abstract This article measures the cost of the early modern consumer revolution through a quantitative analysis of product and process innovations in Amsterdam and examines their variegated social impact in two distinct datasets of probate inventories.
Bas Spliet, Anne E. C. McCants
wiley   +1 more source

Strategic materials and state capacity in Renaissance Italy. The economic policies of ‘Roman saltpetre’ procurement

open access: yesThe Economic History Review, EarlyView.
Abstract Demonstrating the existence of a soaring demand for strategic materials in fifteenth‐century Rome, the article pioneers research in the late medieval trade in saltpetre, the irreplaceable, rare component of gunpowder, indispensable for waging war following the diffusion of artillery technology.
Fabrizio Antonio Ansani
wiley   +1 more source

A Vertical Hit Method for Striking the Middle of a Large Undersea Vehicle

open access: yes水下无人系统学报
Due to the random drift of the target aiming point of the detection system on large undersea vehicles, high-speed attack-type unmanned undersea vehicles(UUVs) often cross the front and rear sides of large undersea vehicles vertically in engineering ...
Meiru ZHANG, Zhiwen WEN, Yanbo LIU
doaj   +1 more source

Fall and Rise of Polish Shipbuilding Industry

open access: yesTransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, 2016
The hereby paper describes a brief history of fall and rise of Polish shipbuilding industry in the 21st century and confronts stereotypes about it using data available from variety of statistical sources as well as impressions regarding its current and future condition presented by different authors, including industry representatives. The main goal of
Krzysztof Wrobel, J. Frankowski
openaire   +1 more source

Chasing the perfida Albione: Anglo‐Italian productivity gap in the late 1930s

open access: yesThe Economic History Review, EarlyView.
Abstract This paper presents new estimates of Anglo‐Italian labour productivity levels in manufacturing in the late 1930s, derived using the standard single‐deflation approach. The findings confirm a substantial productivity gap between Italy and the United Kingdom at the aggregate level, alongside pronounced intersectoral heterogeneity.
Tancredi Salamone
wiley   +1 more source

Design and Verification of End Face Bidirectional Self-Sealing Structure

open access: yes水下无人系统学报
In order to achieve the bidirectional sealing of the end face of underwater large-caliber hatch covers and solve the problem of the large reaction force of the sealing ring during the closing process, this paper innovatively combined the good self ...
Kaifu LI   +5 more
doaj   +1 more source

Procedure for estimating the effectiveness of ship modular outfitting [PDF]

open access: yes, 2011
The shipbuilding industry plays an important role in increasing employment and productivity of the national industry. It is especially important when the market has fallen due to the influence of the global economical crisis.
Damir Kolić   +2 more
core   +1 more source

70 years of Scottish National Accounts: 1948–2018

open access: yesThe Economic History Review, EarlyView.
Abstract This paper provides a comprehensive time series of historical National Accounts for Scotland (onshore and offshore) from 1948 to 2018. It includes a detailed breakdown by income component and industrial sector using methods that are forward and backward compatible.
Graeme Roy   +2 more
wiley   +1 more source

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