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103 Results Found

  • Article
  • Open Access
12 Citations
4,678 Views
19 Pages

Drivers of Port Competitiveness Among Low-, Upper-, and High-Income Countries

  • Metri F. Mdanat,
  • Mohammad Al Hur,
  • Omar M. Bwaliez,
  • Ghazi A. Samawi and
  • Raed Khasawneh

20 December 2024

This study empirically investigated the drivers of port competitiveness among low-, upper-, and high-income countries in the Middle East and North Africa region. It explored the effects of country-level competitiveness, logistic performance, and ease...

  • Article
  • Open Access
6 Citations
2,484 Views
12 Pages

European DEMO Fusion Reactor: Design and Integration of the Breeding Blanket Feeding Pipes

  • Rocco Mozzillo,
  • Christian Vorpahl,
  • Christian Bachmann,
  • Francisco A. Hernández and
  • Alessandro Del Nevo

29 June 2023

This article describes the design and configuration of the DEMO Breeding Blanket (BB) feeding pipes inside the upper port. As large BB segments require periodic replacement via the upper vertical ports, the space inside the upper port needs to be max...

  • Article
  • Open Access
11 Citations
3,114 Views
8 Pages

21 September 2023

Background: With the introduction of the single-port (SP) robot, surgery that was difficult to attempt is becoming possible. Nephroureterectomy (NUx) for upper tract urothelial carcinoma also seems to be able to attempt a retroperitoneal (RP) approac...

  • Article
  • Open Access
778 Views
24 Pages

28 September 2025

Suboptimal feed mixer designs cause nutrient heterogeneity and energy waste through inadequate turbulent flow. This study systematically examines how stirrer blade geometry governs turbulent kinetic energy and thermal homogeneity to enhance mixing ef...

  • Article
  • Open Access
29 Citations
6,394 Views
24 Pages

8 January 2020

Port development potential refers to the potential but unrealized status and capacity of ports, which can become a reality when external conditions permit. A correct analysis of port development potential helps to better formulate investment response...

  • Article
  • Open Access
8 Citations
2,659 Views
17 Pages

25 October 2022

In recent years, the coastal ports of the Yangtze River Delta have rapidly developed with the progress of science and technology, which has caused some problems on account of the rapid development of ports. On the one hand, there is fierce competitio...

  • Article
  • Open Access
21 Citations
4,002 Views
13 Pages

31 July 2021

For the purpose of increasing the capacity of an Angang Strip Production (ASP) continuous caster and the surface quality of a medium-thin slab with mold sections of 150 × (1020–1540) mm2, the present work investigated the influences of the submerged...

  • Article
  • Open Access
660 Views
17 Pages

SlimPort: Port-Driven High-Level Synthesis for Continuous-Flow Microfluidic Biochips

  • Youlin Pan,
  • Yanbo Xu,
  • Ziyang Chen,
  • Xing Huang and
  • Genggeng Liu

Continuous-flow microfluidic biochips (CFMBs) automatically execute various bioassays by precisely controlling the transport of fluid samples, which is driven by pressure delivered through fluidic ports. High-level synthesis, as an important stage in...

  • Article
  • Open Access
5 Citations
4,608 Views
16 Pages

Optimization of Multi-Port Empty Container Repositioning under Uncertain Environments

  • Jingyao Song,
  • Xin Tang,
  • Chuanxu Wang,
  • Changyan Xu and
  • Junyi Wei

15 October 2022

Empty container repositioning has always been an important problem faced by ports. In this paper, we study the multi-port empty container repositioning problem with the uncertainty of the demand and supply of empty containers in ports. First, we esta...

  • Article
  • Open Access
1 Citations
1,269 Views
25 Pages

9 September 2025

Since the implementation of the Belt and Road Initiative (BRI) in 2013, Chinese enterprises have expanded port and industrial investments along the Maritime Silk Road (MSR), forming a mutually reinforcing coupled system. Port investments reduce trans...

  • Article
  • Open Access
233 Views
11 Pages

This paper presents a compact four-port multiple-input multiple-output (MIMO) antenna operating in the Ku-band around 13 GHz, targeting early-phase 6G upper-midband front-end applications. The proposed antenna employs orthogonally arranged short-ende...

  • Article
  • Open Access
1 Citations
2,207 Views
12 Pages

29 February 2024

In this paper, a novel broadband balanced-to-balanced (BTB) filtering power divider (FPD) utilizing the half-mode substrate-integrated waveguide and spoof surface plasmon polariton (HMSIW-SSPP) hybrid transmission line is introduced. Initially, a new...

  • Article
  • Open Access
1,374 Views
20 Pages

13 November 2024

Spatial scale is a key factor, which affects the accuracy of spatial expression and further influences the spatial planning of a research area. In order to help improve the efficiency and accuracy of optimal scale selection for all sizes of research...

  • Article
  • Open Access
853 Views
20 Pages

4 July 2025

In double-shield TBM tunnel construction, grouting plays a vital role in consolidating the gravel backfill and maintaining the integrity of the segmental lining. To investigate the permeation behavior of grout within the pea gravel layer, a fluid dyn...

  • Article
  • Open Access
3 Citations
3,593 Views
14 Pages

23 December 2021

In this study, a valveless pump was successfully designed and fabricated for the purpose of medium transportation. Different from traditional pumps, the newly designed pump utilizes an actuated or a deflected membrane, and it serves as the function o...

  • Article
  • Open Access
9 Citations
2,614 Views
18 Pages

Autonomous UAV Safety Oriented Situation Monitoring and Evaluation System

  • Zhuoyong Shi,
  • Jiandong Zhang,
  • Guoqing Shi,
  • Mengjie Zhu,
  • Longmeng Ji and
  • Yong Wu

9 July 2024

In this paper, a LabVIEW-based online monitoring and safety evaluation system for UAVs is designed to address the deficiencies in UAV flight state parameter monitoring and safety evaluation. The system consists of a lower unit for UAV recording and a...

  • Article
  • Open Access
1 Citations
882 Views
20 Pages

Hierarchical Control Based on Ramp Metering and Variable Speed Limit for Port Motorway

  • Weiqi Yue,
  • Hang Yang,
  • Meng Li,
  • Yibing Wang,
  • Yusheng Zhou and
  • Pengjun Zheng

6 June 2025

Congestion on port motorways often leads to reduced capacity and traffic efficiency, while the growing prevalence of connected vehicles (CVs) offers new opportunities for improving traffic control. This paper proposes a hierarchical control method in...

  • Article
  • Open Access
3 Citations
4,232 Views
12 Pages

1 December 2021

In this paper, a dual-polarized stacked patch antenna for wireless communication and microwave power transfer is proposed. The stacked antenna consists of four rectangular apertures that are etched on the ground plane and four identical cross-placed...

  • Article
  • Open Access
8 Citations
3,340 Views
20 Pages

Optimizing Port Multi-AGV Trajectory Planning through Priority Coordination: Enhancing Efficiency and Safety

  • Yongjun Chen,
  • Shuquan Shi,
  • Zong Chen,
  • Tengfei Wang,
  • Longkun Miao and
  • Huiting Song

21 September 2023

Efficient logistics and transport at the port heavily relies on efficient AGV scheduling and planning for container transshipment. This paper presents a comprehensive approach to address the challenges in AGV path planning and coordination within the...

  • Article
  • Open Access
2,265 Views
16 Pages

Simulation Analysis of Cyclone Separator for Separation of Cenospheres

  • Rui Shen,
  • Ping He,
  • Sorachon Yoriya,
  • Naichao Chen,
  • Jiang Wu,
  • Tianyang Hu,
  • Kangsai He and
  • Qian Cai

13 June 2024

The separation of cenospheres is an important method for fly ash recycling, and there is no efficient and less polluting method available for separating cenospheres. This paper proposes the dry separation of cenospheres using a cyclone separator, whi...

  • Article
  • Open Access
9 Citations
3,693 Views
17 Pages

3 February 2023

In order to further reduce the aerodynamic drag of High-speed Electric Multiple Units (EMU), an active flow control drag reduction method combining air suction and blowing is proposed at the rear of the EMU train. A numerical calculation method based...

  • Article
  • Open Access
24 Citations
10,309 Views
16 Pages

The pulmonary administration of pharmaceutical aerosols to patients is affected by age-dependent variations in the anatomy of the upper airways and the inhalation pattern. Considering this aspect, different upper airway models, representing the geome...

  • Article
  • Open Access
21 Citations
8,576 Views
25 Pages

24 July 2015

An understanding of sediment transport processes and resultant concentration dynamics in estuaries is of great importance to engineering design awareness and the management of these environments. Predictive modelling approaches provide an opportunity...

  • Article
  • Open Access
17 Citations
7,281 Views
11 Pages

A novel method to design a wideband substrate integrated waveguide (SIW) bandpass filter (BPF) with compact size, wide stopband and high selectivity is presented. In this method some unique electromagnetic band-gap (EBG) cells are periodically etched...

  • Article
  • Open Access
3 Citations
5,204 Views
12 Pages

Background and Objectives: This study explored how nefopam, a non-opioid analgesic in a multimodal regimen, impacts postoperative pain, opioid use, and recovery quality in single-port robot-assisted laparoscopic cholecystectomy (RALC) patients with a...

  • Article
  • Open Access
9 Citations
8,549 Views
40 Pages

Towards the Development of the National Ocean Service San Francisco Bay Operational Forecast System

  • Machuan Peng,
  • Richard A. Schmalz Jr.,
  • Aijun Zhang and
  • Frank Aikman III

24 March 2014

The National Ocean Service (NOS), Center for Operational Products and Services installed a Physical Oceanographic Real Time System (PORTS) in San Francisco Bay during 1998 to provide water surface elevation, currents at PORTS prediction depth as well...

  • Article
  • Open Access
5 Citations
2,379 Views
25 Pages

Unsteady Fluid Flows in the Slab Mold Using Anticlogging Nozzles

  • María Guadalupe González-Solórzano,
  • Rodolfo Morales Dávila,
  • Javier Guarneros,
  • Ismael Calderón-Ramos,
  • Carlos Rodrigo Muñiz-Valdés and
  • Alfonso Nájera-Bastida

30 August 2022

The characterization of the fluid flow of liquid steel in a slab mold, using two nozzle designs under unclogged and clogged conditions, is performed using physical and mathematical simulations. Nozzle A, with an expanding and contracting geometry, yi...

  • Article
  • Open Access
12 Citations
3,131 Views
14 Pages

Fully-Metallic Additively Manufactured Monolithic Double-Ridged Waveguide Rotman Lens in the K/Ka-Band

  • Nelson J. G. Fonseca,
  • Sophie-Abigaël Gomanne,
  • José Rico-Fernández,
  • Petar Jankovic,
  • Jaione Galdeano,
  • Giovanni Toso,
  • Piero Angeletti,
  • Manuel Arrebola and
  • Oscar Quevedo-Teruel

21 July 2023

This paper reports on the design and experimental validation of a fully-metallic double-ridged waveguide 10 × 10 Rotman lens additively manufactured as a single part. The wide band operation of this quasi-optical beamformer enables us to cover...

  • Article
  • Open Access
7 Citations
2,965 Views
41 Pages

Neutronics Simulations for DEMO Diagnostics

  • Raul Luís,
  • Yohanes Nietiadi,
  • Antonio Quercia,
  • Alberto Vale,
  • Jorge Belo,
  • António Silva,
  • Bruno Gonçalves,
  • Artur Malaquias,
  • Andrei Gusarov and
  • Wolfgang Biel
  • + 4 authors

26 May 2023

One of the main challenges in the development of a plasma diagnostic and control system for DEMO is the need to cope with unprecedented radiation levels in a tokamak during long operation periods. A list of diagnostics required for plasma control has...

  • Article
  • Open Access
1 Citations
1,577 Views
12 Pages

A Compact Broadband Common-Aperture Dual-Polarized Antenna for Drone Applications

  • Xue-Ping Li,
  • Chao-Liang He,
  • Jun-Fei Ji,
  • Meng-Bing Yang,
  • Yan Zhang,
  • An-Xue Zhang and
  • Wei Li

31 December 2024

A novel common-aperture miniaturized antenna with wideband and dual-polarized characteristics is proposed, which consists of a circularly polarized (CP) and a linearly polarized (LP) antenna. The circularly polarized antenna stacked on the upper laye...

  • Article
  • Open Access
1,015 Views
19 Pages

10 September 2025

Understanding the morphodynamic evolution of muddy coasts under complex wave–tidal forcing is crucial for effective coastal management, particularly under the unstable hydrodynamic conditions associated with global climate change. This study em...

  • Article
  • Open Access
6 Citations
845 Views
34 Pages

17 July 2025

Based on admirable porous media performance and the popularity of additive manufacturing technology, gradient porous media are progressively being applied in increasing fields. In this study, convection heat transfer within a square vented cavity, pa...

  • Article
  • Open Access
6 Citations
2,718 Views
19 Pages

Analysis of a New SEN Design with an Inner Flow Divider

  • Jesus Gonzalez-Trejo,
  • Ruslan Gabbasov,
  • Jose Raul Miranda-Tello,
  • Ignacio Carvajal-Mariscal,
  • Francisco Cervantes-de-la-Torre,
  • Florencio Sanchez-Silva and
  • Cesar Augusto Real-Ramirez

11 September 2021

To minimize the product imperfections due to slag entrapment and surface defects, the fluid flow pattern inside the mold must be symmetric, commonly named double-roll flow. Thus, the liquid steel must enter into the mold evenly distributed. The subme...

  • Article
  • Open Access
19 Citations
3,037 Views
25 Pages

Numerical Simulation and Experimental Validation of Squeeze Casting of AlSi9Mg Aluminum Alloy Component with a Large Size

  • Jufu Jiang,
  • Jing Yan,
  • Yingze Liu,
  • Guoquan Hu,
  • Ying Wang,
  • Changjie Ding and
  • Dechao Zou

19 June 2022

The squeeze casting process for an AlSi9Mg aluminum alloy flywheel housing component was numerically simulated using the ProCAST software, and orthogonal simulation tests were designed according to the L16 (4) 5 orthogonal test table to investigate t...

  • Article
  • Open Access
547 Views
25 Pages

31 October 2025

Under the tightening carbon reduction policies, port microgrids face the challenge of optimizing the installed capacity of multiple power generation types to reduce operating costs and increase renewable energy penetration. We develop a bi-level cost...

  • Article
  • Open Access
8 Citations
2,287 Views
20 Pages

In this paper, an eight-port antenna array is presented for 5G handheld terminals to support multiple-input multiple-output (MIMO) operations. The reported design involves three layers: the top contains eight circular microstrip feed elements; the mi...

  • Article
  • Open Access
1,732 Views
8 Pages

5 December 2024

Upper para-aortic lymph node dissection (PALND) is one of the most challenging gynecologic robotic procedures. This study aimed to evaluate the oncologic and operative outcomes of robotic staging surgery, including upper PALND, using low pelvic port...

  • Article
  • Open Access
1 Citations
2,270 Views
14 Pages

30 September 2023

Herein, the distribution of sulfur and iron compounds (dissolved sulfide: H2S and HS−, iron sulfide: FeS, and ionized iron: Fe2+ and Fe3+) in sediments (0–15 cm depth) at four stations in Mikawa Bay, Japan, was evaluated from April 2015 t...

  • Article
  • Open Access
508 Views
20 Pages

Sub-Module Capacitor Voltage Ripple Suppression in MMDTC-Based PET Using Three-Port Active Bridge

  • Xiangzheng Cui,
  • Decun Niu,
  • Qizhong Yan,
  • Dong Wang,
  • Zhenwei Li and
  • Lei Zhang

29 September 2025

For power electronic transformer (PET) based Modular Multilevel DC-Link Based T-type Converters (MMDTC) with Double Active Bridges (DABs) (namely DABs-based MMDTC-PET), the sub-module capacitor voltages exhibit relatively large ripples. To reduce the...

  • Article
  • Open Access
654 Views
22 Pages

27 October 2025

The instability of bank slopes with uneven and soft geological layers under a heaped load will influence the safe and normal operation of ports. Therefore, this paper takes the bank slope in Xiaqinglong Port for slope stability evaluation and treatme...

  • Article
  • Open Access
5 Citations
3,238 Views
17 Pages

Deep-Sea Sediment and Water Simulator for Investigation of Methane Seeping and Hydrate Formation

  • Yan Xie,
  • Jingchun Feng,
  • Weiqiang Hu,
  • Mingrui Zhang,
  • Junwen Wang,
  • Bo Peng,
  • Yujun Wang,
  • Zhenwu Zhou and
  • Yi Wang

The ubiquitous methane seeping process in the deep-sea environment could significantly influence the global methane cycle and carbon budget. Hydrate formation on the methane bubble during the seeping process is an important way for sequestrating meth...

  • Article
  • Open Access
2 Citations
2,041 Views
13 Pages

Design of a Ka-Band Five-Bit MEMS Delay with a Coplanar Waveguide Loaded U-Shaped Slit

  • Yongxin Zhan,
  • Yu Chen,
  • Honglei Guo,
  • Qiannan Wu and
  • Mengwei Li

27 July 2023

This paper designs a five-bit microelectromechanical system (MEMS) time delay consisting of a single-pole six-throw (SP6T) RF switch and a coplanar waveguide (CPW) microstrip line. The focus is on the switch upper electrode design, power divider desi...

  • Article
  • Open Access
56 Citations
7,279 Views
13 Pages

25 September 2017

We present a compact ultra-wideband (UWB) antenna integrated with sharp notches with a detailed analysis of the mutual coupling of the multiple notch resonators. By utilizing complementary split ring resonators (CSRR) on the radiating semi-circular p...

  • Article
  • Open Access
2 Citations
3,647 Views
15 Pages

This research was initiated as design guidance for the extension works of a submerged trapezoidal riprap breakwater protecting the channel towards Huanghua Port in China. Based on flume experiments, the sediment-retaining effect of the breakwater was...

  • Article
  • Open Access
7 Citations
2,195 Views
17 Pages

29 October 2021

As a new type of repairing and reinforcing material, textile-reinforced concrete (TRC) is often used to improve mechanical properties and durability of offshore, port, and hydraulic structures in the corrosive environment. In order to investigate how...

  • Article
  • Open Access
1 Citations
2,561 Views
16 Pages

Directive Multiband Antenna Based on Rectangular Loop Array and Dumbbell-Shaped Slot Radiator

  • Jose Alfredo Tirado-Mendez,
  • Hildeberto Jardon-Aguilar,
  • Ruben Flores-Leal,
  • Luis Alberto Vasquez-Toledo,
  • Arturo Rangel-Merino,
  • Rricardo Marcelin-Jimenez,
  • Enrique Rodriguez-Colina and
  • Michael Pascoe-Chalke

26 October 2021

In this article, a combination of rectangular loop array and slot radiator for multiband applications is presented. The antenna is configured by arranging, concentrically, a set of rectangular loop radiators excited by electromagnetic coupling provid...

  • Article
  • Open Access
2 Citations
3,156 Views
20 Pages

The Reentrant Four-Layer Quasi-Elliptic Bandstop Filter

  • Victor V. Atuchin,
  • Anatoly P. Gorbachev,
  • Vladimir A. Khrustalev and
  • Natalya V. Tarasenko

The novel microwave quasi-elliptic bandstop filter, which uses the initially uncoupled strip transmission lines, is considered in this work. The proposed filter is based on the reentrant structure, where the metallic body with a floating potential is...

  • Article
  • Open Access
11 Citations
4,166 Views
8 Pages

Robotic-Assisted Thoracoscopic Resection of the First Rib for Vascular Thoracic Outlet Syndrome: The New Gold Standard of Treatment?

  • Adrian Zehnder,
  • Jon Lutz,
  • Patrick Dorn,
  • Fabrizio Minervini,
  • Peter Kestenholz,
  • Hans Gelpke,
  • Ralph A. Schmid and
  • Gregor J. Kocher

31 August 2021

In thoracic outlet syndrome (TOS) the narrowing between bony and muscular structures in the region of the thoracic outlet/inlet results in compression of the neurovascular bundle to the upper extremity. Venous compression, resulting in TOS (vTOS) is...

  • Technical Note
  • Open Access
6 Citations
2,920 Views
16 Pages

5 December 2021

An understanding of suspended particulate matter (SPM) dynamics is of great importance to design awareness and management strategies of estuaries. Using a Laser In Situ Scattering and Transmissiometry (LISST) instrument, variations in suspended parti...

  • Article
  • Open Access
764 Views
48 Pages

Computer Model Based on an Asynchronous BLE 5.0 IMU Sensor Network for Biomechanical Applications

  • Juan Antonio Mora-Sánchez,
  • Luis Pastor Sánchez-Fernández,
  • Diana Lizet González-Baldovinos,
  • María Teresa Zagaceta-Álvarez and
  • Sandra Dinora Orantes-Jiménez

28 November 2025

The acquisition, processing, and monitoring of biomechanical variables in dynamic environments require sensor network architectures capable of handling high concurrency and large data volumes. This study aims to develop, validate, and deploy a robust...

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