Zhen Chen

ORCID: 0000-0002-1810-0195
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About
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Research Areas
  • Cloud Computing and Resource Management
  • Service-Oriented Architecture and Web Services
  • Fluid Dynamics Simulations and Interactions
  • Advanced Manufacturing and Logistics Optimization
  • Advanced Computational Techniques and Applications
  • Additive Manufacturing and 3D Printing Technologies
  • Manufacturing Process and Optimization
  • Caching and Content Delivery
  • Maritime Ports and Logistics
  • VLSI and FPGA Design Techniques
  • Blockchain Technology Applications and Security
  • Peer-to-Peer Network Technologies
  • Advanced Sensor and Control Systems
  • Minerals Flotation and Separation Techniques
  • Technology and Security Systems
  • Distributed and Parallel Computing Systems
  • 3D IC and TSV technologies
  • Image and Video Stabilization
  • Business Process Modeling and Analysis
  • Enzyme Catalysis and Immobilization
  • Lattice Boltzmann Simulation Studies
  • Coagulation and Flocculation Studies
  • Cloud Computing and Remote Desktop Technologies
  • Network Security and Intrusion Detection
  • Microbial Metabolic Engineering and Bioproduction

Lingnan Normal University
2008-2024

Ministry of Industry and Information Technology
2024

Beijing Institute of Technology
2024

Anhui Jianzhu University
2024

Yanshan University
2016-2024

Xiamen University
2003-2022

Development Research Center
2021

Zhengzhou University
2021

Saudi Aramco (United States)
2021

Donghua University
2020

Polyunsaturated fatty acids (PUFAs) have been widely applied in the food and medical industry. In this study, malonyl-CoA: ACP transacylase (MAT) was overexpressed through homologous recombination to improve PUFA production Schizochytrium. The results showed that lipid concentration were increased by 10.1 24.5% with MAT overexpression, respectively. Metabolomics analysis revealed intracellular tricarboxylic acid cycle weakened glucose absorption accelerated engineered strain. mevalonate...

10.1021/acs.jafc.8b01026 article EN Journal of Agricultural and Food Chemistry 2018-05-03

The identification of microorganisms with excellent flocculant-producing capability and optimization the fermentation process are necessary for wide-scale application bioflocculants. Thus, we evaluated ability a novel strain identified by screening marine bacteria, report first time properties bioflocculant produced Alteromonas sp. in treatment dye wastewater.A bioflocculant-producing bacterium was isolated from seawater as CGMCC 10612. optimal carbon nitrogen sources were 30 g/L glucose 1.5...

10.1186/s12896-017-0404-z article EN cc-by BMC Biotechnology 2017-11-17

In recent years 3D printing technology is developing rapidly. the foreseeable future, when widely used, world’s industrial structure will be greatly changed. Based on actual data, this paper constructs an international supply chain model using system dynamics method. And it simulates reconstruction trend of after application. The conclusion shows that universal application lead to worldwide transport volume shrinking dramatically. manufacturing activities gradually outflow countries which...

10.1155/2016/4173873 article EN cc-by Advances in Materials Science and Engineering 2016-01-01

With the advent of big data age, volume has been changed from trillionbyte to petabyte with incredible speed. Owing fact that cloud storage offers vision a virtually infinite pool resources, can be stored and accessed high scalability availability. But single cloud-based risks like vendor lock-in, privacy leakage, unavailability. Multi-cloud mitigate these geographically located providers. In this scheme, one important challenge is how place user's cost-effectively paper, an architecture for...

10.31577/cai_2020_1-2_51 article EN Computing and Informatics 2020-01-01

With the explosive increase in mobile apps, more and threats migrate from traditional PC client to device. Compared with Win+Intel alliance PC, Android+ARM dominates Mobile Internet, apps replace software as major target of malicious usage. In this paper, improve security status current we propose a methodology evaluate based on cloud computing platform data mining. We also present prototype system named MobSafe identify app's virulence or benignancy. method, such permission pattern combines...

10.1109/tst.2013.6574680 article EN Tsinghua Science & Technology 2013-08-01

Container multimodal transport system was an important promoter of postwar globalization. But in the future, part global manufacturing may change from centralized to distributed due 3D printing. To evaluate its impact, this research established a dynamics model sneakers supply chain firstly. The modeling showed that total demand international would decline after application For consumer country, return increase container business. And producer country reduce correspondingly. for resource...

10.1155/2017/7849670 article EN cc-by Complexity 2017-01-01

10.3970/cmes.2005.007.305 article EN Computer Modeling in Engineering & Sciences 2005-03-01

This study examines the effects of rising live streaming e-commerce on 3DP supply chain, employing system dynamics to develop separate models for pure polymer and polymer-metal mixed printing. The analysis focuses optimizing chain configuration. Results indicate that, based solely printing time, cost, quality metrics, Corporate-live-3DP services are optimal commerce scenarios. However, despite this, Private-live-3DP maintains a substantial consumer base in practice, as evidenced by...

10.1371/journal.pone.0303218 article EN cc-by PLoS ONE 2024-05-14

As an environmentally friendly and industrially useful biopolymer, poly-γ-glutamic acid (γ-PGA) from Bacillus licheniformis CGMCC 2876 was characterized by the high-resolution mass spectrometry 1H NMR. A flocculating activity of 11,474.47 U mL−1 obtained with γ-PGA, effects carbon sources, ions, chemical properties (D-/L-composition molecular weight) on production γ-PGA were discussed. Being a bioflocculant in sugar refinery process, color turbidity sugarcane juice IU 1,877.36 341.41 0.8 ppm...

10.1002/btpr.2118 article EN Biotechnology Progress 2015-05-29

Flocculation model of<italic>B. licheniformis</italic>CGMCC 2876 deduced by XDLVO and surface thermodynamic characterization.

10.1039/c6ra28057a article EN cc-by-nc RSC Advances 2017-01-01

With the advent of service-oriented computing, Web service QoS prediction have become crucial for success many service-based distributed systems due to its significant role in evaluating services satisfy user personalized needs. Previous studies underestimate implicit relationship neighborhood with respect both users and services. It is natural reasonable assume that perform choices make are significantly influenced by their neighbors, thus it will be beneficial incorporate this new source...

10.1109/cscwd.2016.7566007 article EN 2022 IEEE 25th International Conference on Computer Supported Cooperative Work in Design (CSCWD) 2016-05-01

3D printing is a technology of rapid prototyping. It can effectively respond to the needs customers and help achieve Service-oriented manufacturing. Here reconstruction personalized toy manufacturing through was studied. Then it evaluated in three aspects, integration resources, product increment business model innovation. The conclusion showed that, based on could not only customer needs, but also get rid traditional process constraints, shorten R&D period. That would realize collaborative...

10.1016/j.proeng.2017.01.278 article EN Procedia Engineering 2017-01-01

Port city is the node in global commodity flows. It open to outside world and often primary test field of new economic development model. To reduce negative impact crisis since 2008, various developing patterns have been tested port city. And most effective way should rely on city’s operation mechanism. Here a System Dynamics model established analyze interaction process elements port-city system. Then choose Shenzhen as empirical case. By changing proportion R&amp;D fixed-asset investment,...

10.1155/2015/692476 article EN cc-by Discrete Dynamics in Nature and Society 2015-01-01

Floorplanning is a key step in the physical design of Very Large Scale Integrated (VLSI) circuits. It multi-objective combinatorial optimization and has been proved to be NP-hard problem. To solve this problem, coevolutionary particle swarm (CMOPSO) algorithm proposed paper. The imports concept elitist strategy into basic PSO algorithm, takes both layout area total interconnection wire length consideration simultaneously. Experimental results showed new can achieve better performance.

10.1109/icnc.2012.6234515 article EN 2012-05-01

10.1166/jctn.2016.5148 article EN Journal of Computational and Theoretical Nanoscience 2016-03-01

Since China’s National Development and Reform Commission approved the first seven pilot cities to carbon emission right trading, trading is now flourishing in country. However, practice, emerges many problems short some basic theories safeguard. In theory, nature of still has no uniform academic definition. What right? There an contend illustrate it, such as usufruct right, property new other theories. What’s more, defining premise ensure that emissions system work smoothly.

10.4028/www.scientific.net/amm.644-650.5235 article EN Applied Mechanics and Materials 2014-09-01

This paper presents a novel platform as workflow engine service which helps users to utilize cloud computing for addressing problems of large scale data processing without knowledge underlying configuration details applications. Our provides elastic resources applications ensure that leverage efficiently with the consideration their budgets. To achieve this goal, we propose cost-oriented scheduling strategy guarantee match appropriate and be scheduled in minimum makespan, These workflows...

10.1109/comcomap.2012.6154858 article EN 2012-01-01

The training paradigm integrating large language models (LLM) is gradually reshaping sequential recommender systems (SRS) and has shown promising results. However, most existing LLM-enhanced methods rely on rich textual information the item side instance-level supervised fine-tuning (SFT) to inject collaborative into LLM, which inefficient limited in many applications. To alleviate these problems, this paper proposes a novel practice-friendly two-stage (TSLRec) for SRS. Specifically,...

10.48550/arxiv.2406.00333 preprint EN arXiv (Cornell University) 2024-06-01
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