The Decision on Reserve Logistics Network Structure of End-of-Life Vehicles Recycling

2014 ◽  
Vol 878 ◽  
pp. 75-82 ◽  
Author(s):  
Zheng Gang He ◽  
Ye Zou
Keyword(s):  
End Of Life ◽  
Network Structure ◽  
Renewable Resources ◽  
Recovery Rate ◽  
High Efficiency ◽  
Economic Value ◽  
Great Influence ◽  
Network Structures ◽  
Resource Value ◽  
Logistics Network

End-of-life vehicles (ELVs) are the important renewable resources. In order to improve the recovery rate of ELVs and realize its economic value, environmental value and resource value, it is necessary to build a reserve logistics network of ELVs recycling, which is of high efficiency and benefit. The structure has great influence on the operation of whole network. Based on the analysis of different reserve logistics network structures, this paper builds and solves the model of decision on reserve logistics network Structure of ELVs recycling and analyses as well as verifies it using a example.

Optimizing the prepared condition of TiO2 1D/3D network structure films to enhance the efficiency of dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (101) ◽  
pp. 82968-82976 ◽  
Author(s):  
Baoyuan Wang ◽  
Jingshu Wan ◽  
Qingyun Liu ◽  
Jun Zhang ◽  
Hao Wang
Keyword(s):  
Solar Cells ◽  
Hydrothermal Method ◽  
Network Structure ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Network Structures ◽  
Dye Sensitized ◽  
3D Network ◽  
Sensitized Solar Cells

TiO2 films with 1D/3D network structures have been prepared via two-step hydrothermal method and applied in DSSCs, an high efficiency of 7.68% was achieved.

Network Organizational Structure (a Scientific and Practical Review)

2020 ◽  
Vol 26 (6) ◽  
pp. 613-618
Author(s):  
A. V. Altukhov ◽  
S. A. Tishchenko
Keyword(s):  
Organizational Structure ◽  
Network Structure ◽  
Business Models ◽  
Scientific Development ◽  
Network Structures ◽  
Scientific Publications ◽  
Wide Range ◽  
Modern Business ◽  
History Of ◽  
Business Structures

The presented study reviews practically relevant research papers in the field of network structures, modern network business models and platforms.Aim. The study aims to elaborate and explain the concept of network structure and platform and to show the reasons for the progressiveness and potential of network organizational structure at the current stage of socio-economic and scientific development.Tasks. The authors highlight the main scientific ideas about network structures in business, including significant studies in this area; provide and explain the main terms and definitions and examine the key characteristics of network business structures; characterize “platforms” as an important concept for modern business and show the relationship between platforms and network structures.Methods. This study uses analysis of information and subsequent synthesis of new knowledge in the form of the authors’ conclusions and a wide range of relevant scientific publications of Russian and foreign authors, including original publications in English and French.Results. The history of network structures is briefly provided. Definitions and characteristics of such concepts as “network structure” and “platform” in relation to business are provided and explained by the authors.

Advances in coupled axial turbine and nonaxisymmetric exhaust volute aerodynamics for turbomachinery

2020 ◽  
pp. 095441002096645
Author(s):  
Jie Gao ◽  
Chunde Tao ◽  
Dongchen Huo ◽  
Guojie Wang
Keyword(s):  
Performance Improvement ◽  
High Efficiency ◽  
Three Dimensional ◽  
Great Influence ◽  
Aerodynamic Characteristics ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Axial Turbine ◽  
Flow Interactions ◽  
And Performance

Marine, industrial, turboprop and turboshaft gas turbine engines use nonaxisymmetric exhaust volutes for flow diffusion and pressure recovery. These processes result in a three-dimensional complex turbulent flow in the exhaust volute. The flows in the axial turbine and nonaxisymmetric exhaust volute are closely coupled and inherently unsteady, and they have a great influence on the turbine and exhaust aerodynamic characteristics. Therefore, it is very necessary to carry out research on coupled axial turbine and nonaxisymmetric exhaust volute aerodynamics, so as to provide reference for the high-efficiency turbine-volute designs. This paper summarizes and analyzes the recent advances in the field of coupled axial turbine and nonaxisymmetric exhaust volute aerodynamics for turbomachinery. This review covers the following topics that are important for turbine and volute coupled designs: (1) flow and loss characteristics of nonaxisymmetric exhaust volutes, (2) flow interactions between axial turbine and nonaxisymmetric exhaust volute, (3) improvement of turbine and volute performance within spatial limitations and (4) research methods of coupled turbine and exhaust volute aerodynamics. The emphasis is placed on the turbine-volute interactions and performance improvement. We also present our own insights regarding the current research trends and the prospects for future developments.

scholarly journals Evidence on the economic value of end-of-life and palliative care interventions: a narrative review of reviews

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Xhyljeta Luta ◽  
Baptiste Ottino ◽  
Peter Hall ◽  
Joanna Bowden ◽  
Bee Wee ◽  
...  
Keyword(s):  
Palliative Care ◽  
Cost Effectiveness ◽  
End Of Life ◽  
Resource Use ◽  
Economic Value ◽  
Healthcare Delivery ◽  
Dying Patients ◽  
Home Based ◽  
Population Type ◽  
Care Models

Abstract Background As the demand for palliative care increases, more information is needed on how efficient different types of palliative care models are for providing care to dying patients and their caregivers. Evidence on the economic value of treatments and interventions is key to informing resource allocation and ultimately improving the quality and efficiency of healthcare delivery. We assessed the available evidence on the economic value of palliative and end-of-life care interventions across various settings. Methods Reviews published between 2000 and 2019 were included. We included reviews that focused on cost-effectiveness, intervention costs and/or healthcare resource use. Two reviewers extracted data independently and in duplicate from the included studies. Data on the key characteristics of the studies were extracted, including the aim of the study, design, population, type of intervention and comparator, (cost-) effectiveness resource use, main findings and conclusions. Results A total of 43 reviews were included in the analysis. Overall, most evidence on cost-effectiveness relates to home-based interventions and suggests that they offer substantial savings to the health system, including a decrease in total healthcare costs, resource use and improvement in patient and caregivers’ outcomes. The evidence of interventions delivered across other settings was generally inconsistent. Conclusions Some palliative care models may contribute to dual improvement in quality of care via lower rates of aggressive medicalization in the last phase of life accompanied by a reduction in costs. Hospital-based palliative care interventions may improve patient outcomes, healthcare utilization and costs. There is a need for greater consistency in reporting outcome measures, the informal costs of caring, and costs associated with hospice.

Structural Design and Forming Method of Single-Curved Surface Structure Based on Miura-Origami

2016 ◽  
Author(s):  
Hairui Wang ◽  
Chunfang Guo ◽  
Yujie Li ◽  
Yahua Liu ◽  
Minjie Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Structural Design ◽  
High Efficiency ◽  
Circular Tube ◽  
Great Influence ◽  
Curved Surface ◽  
Structural Performance ◽  
Forming Process ◽  
Structural Support ◽  
Vacuum Forming

With the advantage of high adaptability, Miura-origami structure with curvature shows various engineering applications such as a sandwich between two stiff facings with curvature requirements and structural support to form a circular tube. In this research, a forming method of polymer circular tube with single-curved surface origami expressed by five parameters was established and its corresponding theory was solved considering forming rationality in actual manufacturing. The components of circular tube were fabricated by the vacuum forming process and then spliced together. We conducted numerical simulation to analyze the structural performance of the tube with five parameters and shown that these parameters have a great influence on energy absorbed performance. Finally, a male mold of a part with Arc Miura-origami structure was designed and fabricated. The parts with Arc Miura-origami were manufactured using vacuum forming process and then spliced and bonded together into a two-layer tube. This research may provide a method to design and fabricate Miura-origami structure with high efficiency and quality.

scholarly journals NETWORK STRUCTURES DEVELOPMENT: FROM DOMESTIC MARKETS TO NETWORK PLATFORM

2020 ◽  
Vol 8 (8) ◽  
pp. 219-222
Author(s):  
N. S. Churkina ◽  
D. A. Stepanenko
Keyword(s):  
Network Structure ◽  
Network Structures ◽  
Domestic Markets ◽  
Platform Development ◽  
Network Platform ◽  
Type Of Management

The article is devoted to the study of the development of network structures, causes, forms and trends. The work highlights the directions of interaction of organizations that are part of the network structure, defines the principles of the network, formulates the principles of intra-network interactions. We determined the characteristics of marketing of various types of organizations and escribed the effects of network platforms. We made conclusions about the further direction of platform development and the change in the type of management of organizations as elements of network structures.

scholarly journals Self Assembly of Model Polymers into Biological Random Networks

2020 ◽  
Author(s):  
Matthew Bailey ◽  
Mark Wilson
Keyword(s):  
Network Structure ◽  
Biological Networks ◽  
Self Assembly ◽  
Short Range ◽  
External Pressure ◽  
Coarse Grained ◽  
Random Networks ◽  
Network Structures ◽  
Polymer Model ◽  
Microscope Images

<div>The properties of biological networks, such as those found in the ocular lens capsule, are difficult to study without simplified models.</div><div>Model polymers are developed, inspired by "worm-like'' curve models, that are shown to spontaneously self assemble</div><div>to form networks similar to those observed experimentally in biological systems.</div><div>These highly simplified coarse-grained models allow the self assembly process to be studied on near-realistic time-scales.</div><div>Metrics are developed (using a polygon-based framework)</div><div>which are useful for describing simulated networks and can also be applied to images of real networks.</div><div>These metrics are used to show the range of control that the computational polymer model has over the networks, including the polygon structure and short range order.</div><div>The structure of the simulated networks are compared to previous simulation work and microscope images of real networks. </div><div>The network structure is shown to be a function of the interaction strengths, cooling rates and external pressure. </div><div>In addition, "pre-tangled'' network structures are introduced and shown to significantly influence the subsequent network structure.</div><div>The network structures obtained fit into a region of the network landscape effectively inaccessible to random</div><div>(entropically-driven) networks but which are occupied by experimentally-derived configurations.</div>

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