Results 141 to 150 of about 13,294,583 (240)

Quantifying the impact of pandemic lockdown policies on global port calls. [PDF]

Transp Res Part A Policy Pract, 2022
Bai X, Xu M, Han T, Yang D.
europepmc   +1 more source

Liner shipping service network design with empty container repositioning

This paper proposes a liner shipping service network design problem with combined hub-and-spoke and multi-port-calling operations and empty container repositioning. It first introduces a novel concept - segment - defined as a pair of ordered ports served
Wang, Shuaian, Meng, Qiang
core  

Detecting Loosening of Bolt‐Flanged Pipe Using Smoothed Pseudo Wigner–Ville Distribution: Digital Twin‐Based Approach Using Convolution Neural Networks

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this paper, an integrated digital twin‐based fault‐diagnosis framework is proposed to detect bolt loosening in flanged pipe connections. The approach combines finite element‐based numerical modeling, experimental modal analysis, and advanced signal processing‐assisted deep learning to achieve reliable loosening detection under operational ...
Milad Shabani Yousefabad, Behzad Totakhaneh Bonab, Morteza Homayoun Sadeghi, Mir Mohammad Ettefagh, Mohammad Reza Chalak Qazani   +4 more
wiley   +1 more source

S'Wipe: user-friendly stool collection for high-throughput gut metabolomics and multi-omics. [PDF]

mSystems
Moradi D, Lotfi A, Melnik AV, Smirnov A, Pobozhev K, Monahan H, Kopylova E, Zhou Y, Aksenov AA.   +8 more
europepmc   +1 more source

Designing ZV and ZVD Input Shapers Using the Designed Fixed Output Response Method to Suppress Residual Vibration of Overhead Crane Systems With Trolley Traveling and Payload Hoisting

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Classical Zero Vibration (ZV) and Zero Vibration and Derivative (ZVD) input shapers are designed around a fixed nominal natural frequency and cannot accommodate the time‐varying dynamics introduced when an overhead crane simultaneously travels and hoists a payload.
Mohammad Alfares, Khaled Alhazza
wiley   +1 more source

Sustainable blue economy: energy consumption and carbon‑neutrality strategies for Albania's marine and fisheries sectors. [PDF]

Carbon Balance Manag
Malka L, Zeneli E, Bailek N, Xhafaj E, Sakaj B, Urooj S, Younis JA, El-Kenawy EM.   +7 more
europepmc   +1 more source

Leveraging Public Transit for Robotic Deliveries: A Column Generation Approach

Naval Research Logistics (NRL), EarlyView.
ABSTRACT Autonomous mobile robots (AMRs) are small, electric, wheeled vehicles that operate at pedestrian speeds. In the last‐mile delivery service considered in this study, a fleet of AMRs is deployed across multiple recharging depots within a service area, from which they depart to perform point‐to‐point deliveries. We consider an operational setting
Yishay Shapira, Mor Kaspi
wiley   +1 more source

Ubiquitous sensing of marine activities via the cooperation of autonomous underwater vehicles. [PDF]

Sci Rep
Yan J, Jiang Y, Wang X, Yu J, Yang X, Chen C, Guan X.   +6 more
europepmc   +1 more source

The Single Picker Routing Problem with Scattered Storage in Parallel‐Aisle Warehouses With Multiple Blocks

Networks, EarlyView.
ABSTRACT This paper investigates the b$$ b $$‐block single picker routing problem with scattered storage (b$$ b $$‐SPRP‐SS). For a parallel‐aisle warehouse comprising b$$ b $$ blocks, the b$$ b $$‐SPRP‐SS asks for the determination of a picker tour that minimizes travel distance while collecting all articles from a given pick list.
Stefan Irnich, Laura Lüke
wiley   +1 more source

Research on a fuzzy programming model and algorithm for berth allocation considering time-varying water depth. [PDF]

Sci Rep
Liu D, Li B, Li M, Lei Y, Yu P, Tan C.
europepmc   +1 more source