scholarly journals Synergistic Evaluation and Constraint Factor Analysis on Urban Industrial Ecosystems of Traditional Industrial Area in China

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Chengpeng Lu ◽  
Wei Ji ◽  
Zhiliang Liu ◽  
Shuheng Dong ◽  
Bing Xue

Industrial ecology is an advanced form and ideal model of modern industrial development, in which the industrial ecosystem is the core. Based on the PSR model, this paper builds a comprehensive evaluation index system for urban industrial ecosystem development and selects 14 prefecture-level cities in Liaoning Province of the traditional industrial area in Northeastern China as cases to calculate the development level of its industrial ecosystem during 2000–2018 using an improved Topsis method and then to conduct a spatial visualization analysis. Finally, based on the “stress-state-response” subsystem, this paper diagnoses the constraints for industrial ecosystem development, which can provide a reference basis for decision-making in industrial ecology of traditional industrial area represented by those in Northeast China. The results show the following: (1) From 2000 to 2018, the industrial ecology of the 14 cities in Liaoning Province was at a medium level. Except for Shenyang and Dalian with the rapid development, the difference of industrial ecosystem development for other cities was relatively small. (2) From 2000 to 2018, the industrial ecosystem development of each city was in a status of “either increasing, or decreasing, or fluctuating,” which generally raised first and then decreased. Regarding spatial difference, the development exhibited a “center-periphery” pattern, with Shenyang and Dalian as the “dual-core” that were increasingly strengthened with significantly high-level industrial ecology. (3) At system level, PSR constraint grades for the industrial ecosystem development in the 14 cities of Liaoning Province were different. Constraint grades in the pressure subsystem, the state subsystem, and the response subsystem for the industrial ecosystem of Liaoning were 45.73%, 20.01%, and 34.34%, respectively, indicating that the lack of human response to the ecological environment and the pressure of human activities on the ecological environment during the industrial economy development were the main constraints affecting the process of industrial ecology in these cities. (4) Due to the differences in geographical environments, economic bases, industrial structures, and local development contexts, the major constraint factors of industrial ecosystem development in different cities are significantly different and complicated; however, there are five factors that are generally considered as major constraint factors in all cities, i.e., regional GDP, number of labor force employed in the secondary industrial sector, gross investment in fixed assets, amount of industrial sulfur dioxide removal, and production value from “three-wastes” comprehensive utilization. At last, this paper puts forward some recommendations and suggestions for providing scientific support for industrial ecosystem construction in the traditional industrial area of Northeastern China.

Author(s):  
Reid Bailey ◽  
Janet K. Allen ◽  
Bert Bras ◽  
Farrokh Mistree

Abstract Industrial ecology is a nascent concept in which systems of industries work together to reduce their net negative environmental impact. The work in this paper represents an initial step towards the advancement of industrial ecology through quantitative analysis. A system dynamics model of an existing industrial ecosystem is developed in STELLA® and used to represent the system level behavior. A design tool, the Robust Concept Exploration Method (RCEM), that has been used previously for more traditional design problems, e.g., engine design and airplane design, is successfully applied to the system level design of an industrial ecosystem. The results in this paper are intended to provide support for decision makers in complex industrial ecosystems and, more importantly, to increase the knowledge about designing industrial ecosystems. As the concept of industrial ecology progresses, the analysis of ecosystems will become more complex, increasing the need for design at the system level to be addressed with tools such as the RCEM.


2014 ◽  
Vol 17 (1) ◽  
pp. 79-96 ◽  
Author(s):  
Rick M A Hollen ◽  
Frans A J van den Bosch ◽  
Henk W Volberda

2012 ◽  
Vol 2012 (1) ◽  
pp. 000254-000267 ◽  
Author(s):  
John Y. Xie ◽  
Hong Shi ◽  
Yuan Li ◽  
Zhe Li ◽  
Arif Rahman ◽  
...  

3D IC is the viable revolutionary technology that will enable system-level integration, miniaturization, optimal power management, increased data bandwidth, and eventually reduced system cost. Like any breakthrough technologies, it faces many challenges. Design methodology, integration technology, manufacturing process and new industrial ecosystem are the areas of focus. This paper will discuss these challenges and Altera's 3D integration development effort. 2.5D is an intermediate path to true 3D IC using silicon interposer and TSV (Through-Si-Via) stacking. The 2.5D stacking configuration offers different form factor, interconnect path, and thermal management options than monolithic packages, which could help to reduce system level power and thermal management pressure. It offers silicon level interconnect density, low inductive path and wide IO application. However, it's power delivery system (PDN) could be the bottleneck for the system to perform at the intended bandwidth and speed. Thus, the whole system, IC-Interposer-Package-PCB, must be considered holistically, and trade off study and compensation mechanism development are needed in such complex system level integration. There are many different 2.5D integration manufacturing flows currently under development. They can be categorized into two major flow options: Attaching interposer to substrate first, which can be called CoCoS (Chip on Chip on Substrate); or attaching device silicon to interposer first, which is also called CoWoS (Chip on Wafer on Substrate). The major challenges are in the areas of manufacturing process window and yield, thin wafer handling, testability and overall cost of the integration process. ,). This paper will discuss design consideration, manufacturability analysis, Logic/memory devices and silicon interposer interaction, and thermal management to enable the 2.5D integration. System level characterization and correlation with simulations are performed. The challenge of new supply-customer model and industrial ecosystem development associated with 2.5D integration will also be discussed.


Zootaxa ◽  
2012 ◽  
Vol 3504 (1) ◽  
pp. 56 ◽  
Author(s):  
YAPING CAI ◽  
YUNYUN ZHAO ◽  
CHUNGKUN SHIH ◽  
DONG REN

A new genus Mirabythus Cai, Shih et Ren, gen. nov. (type species, M. lechrius Cai, Shih et Ren, sp. nov.) and M. liae Cai, Shih et Ren, sp. nov. from the family Scolebythidae are described from the Early Cretaceous Yixian Formation of Huangbanjigou Village, Liaoning Province, northeastern China. These findings extend the existence of Scolebythidae to the Early Cretaceous of China, while providing evidence to support Engel and Grimaldi’s hypothesis that the family was widely distributed throughout the Cretaceous. Our two new species with clear venation also provide a comprehensive understanding of the venational changes from the Early Cretaceous to now. A key to the fossil and extant genera of Scolebythidae is provided.


2010 ◽  
Vol 2 (3) ◽  
pp. 777-793 ◽  
Author(s):  
Yuanzhi Zhang ◽  
Su Yan ◽  
Yu Lu

Zootaxa ◽  
2017 ◽  
Vol 4358 (1) ◽  
pp. 193 ◽  
Author(s):  
YANZE CUI ◽  
JINGHUI XI ◽  
JUN WANG

Polymorphism and sexual dimorphism are common in insects. Thrips have been reported to exhibit intraspecific variation in body size, color and wing length (Mound 2005), also sexual dimorphism in abdominal pore plates, antennal sensoria and fore leg armature (Tyagi et al. 2008). Chilothrips Hood is a small genus that currently comprises seven species (ThripsWiki 2017), three from USA, one from Japan, and three from China. No male has been reported in the three species from China, C. strobilus, C. jiuxiensis and C. hangzhouensis (Hu & Feng 2015), and C. strobilus was described on three female specimens from cones of Pinus in Liaoning Province, northeastern China (Tong & Zhang, 1994). Recently, we have surveyed different parts of northeastern China and collected many male individuals of C. strobilus. We have observed that this species shows sexual dimorphism in mouth cone length, and remarkable variation in form of abdominal segment X among females. 


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