Science Discovery

Volume 5, Issue 3, June 2017

  • Microstructure and Mechanical Properties of High-silicon K52 Pipeline Steel in Cold Area

    An Chenggang, Niu Tao, Wu Xinlang, Dai Xiaoli, Yu Cheng, Zhang Caixia

    Issue: Volume 5, Issue 3, June 2017
    Pages: 164-168
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: In this paper, high-silicon K52 and API X52 were studied comparatively, which were with similar yield strength. The results showed that K52 with high-silicon and low-manganese asked for higher tensile strength, lower yield ratio and higher impact energy than API X52. K52 was successfully producted with more content of Nb, V, Ti and so on, which is ... Show More
  • Study on Preparation and Corrosion Resistance of Graphene-Ni35Co30Cu20Fe15 High Entropy Alloy Composites

    Lingyu Xu, Hongnian Cai, Xingwang Cheng, Pei Wang, Meng Wang

    Issue: Volume 5, Issue 3, June 2017
    Pages: 169-173
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: The graphene/Ni35Co30Cu20Fe15 high entropy alloy composites were successfully prepared by ball milling and spark plasma sintering (SPS) methods. The microstructures and structures of graphene and composites were measured by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Raman spectroscopy. Th... Show More
  • Feasibility Study on Applications of Fermented Tea Extracts for Bioenergy and Biorefinery

    An-Wei Hsu, Chung-Chuan Hsueh, Bor-Yann Chen

    Issue: Volume 5, Issue 3, June 2017
    Pages: 174-178
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: As known, tea contained abundant antioxidant compositions significant to human health due to major components of polyphenols and Flavonoids. Prior studies indicated that -OH substituent-rich aromatic compounds could might have electron shuttling capabilities for bioenergy recycling. Thus, it was suspected that antioxidant compositions would be cruc... Show More
  • Feasibility Assessment Upon Applications of Bioenergy-steered Biorefinery with Supplementation of Extracts of Chinese Medicinal Herbs

    Jia-hui Liao, Chung-Chuan Hsueh, Bor-Yann Chen

    Issue: Volume 5, Issue 3, June 2017
    Pages: 179-185
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: For thousands of years, toxicity risk assessment on Chinese medicinal herbs showed that they are "generally regarded as safe" at appropriate dosages. Literature revealed that medical mechanism for human health could be associated with abundant compositions of antioxidants (e.g., polyphenolics and flavonoids). As a matter of fact, some studies discl... Show More
  • Comparative Study of Conventional and Organic Rice Cultivation System in Northeast China Based on LCA

    Feng Zhe, Fan Qingxin

    Issue: Volume 5, Issue 3, June 2017
    Pages: 186-191
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: With the method of life cycle assessment, the paper takes Bayan County, Heilongjiang Province as the case to analyze the resources’ consumption and pollutant releasing of conventional and organic rice cultivation system in northeast China. On the basis of that, the comparative environmental assessment was accomplished. The results showed that the s... Show More
  • Research Progress on Degradation of PPCPs by Micro-Algae

    Peng Xie, Chuan Chen, Shih-Hsin Ho, Jing Peng, Nanqi Ren

    Issue: Volume 5, Issue 3, June 2017
    Pages: 192-198
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: Pharmaceuticals and personal care products (PPCPs) is currently one of the most concerned new pollutions. PPCPs is a very large system, including antibiotics, anti-inflammatory drugs, lipid lowering drugs, musk and hormones, etc. Up to now, more than 3000 kinds of drugs have been developed, and the annual output of raw materials reaches 2 × 106 ton... Show More
  • Microbial Fuel Cell Wastewater Treatment of Copper-Based Heavy Metal Sensor

    Wang Ling, Wu Yining, Gao Ya

    Issue: Volume 5, Issue 3, June 2017
    Pages: 199-204
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: The research is based on the single-chamber microbial fuel cell, with the presence of oxygen, we vary the concentration gradient of copper ions, and observe the changes of the electrochemical parameters to explore the practical application of microbial fuel cells as heavy metal sensors. It was found that: the single-chamber microbial fuel cell, the... Show More
  • Study of the Runoff Depth and Its Processes of Eucalyptus Plantations Natural Watersheds

    Liang Hong-wen, Ma Qing, Li Xiaoqiong, Guo Jin-chuan, Yang Jian-ji

    Issue: Volume 5, Issue 3, June 2017
    Pages: 205-209
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: The runoff and runoff process of Eucalyptus plantations natural watersheds were studied to provide guidance for scientific evaluation of water conservation capacities of Eucalyptus plantations, compared with the Pinus massoniana forest natural watersheds. The runoff volume of Eucalyptus plantations and P. massoniana forest natural watersheds were c... Show More
  • Research on Operation Efficiency of A20-MBR-Worm Bed Coupling Process

    Li Anran, Huang Danping, Li Lipin, Zhang Jun, Tian Yu, Sun Zhimin

    Issue: Volume 5, Issue 3, June 2017
    Pages: 210-216
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: The combination of worm bed and sewage treatment system shows a great performance in sludge reduction, and the return of sludge with worm’s predation will also have effects on the sewage treatment system. The system of A2O-MBR, A2O-MBR-blank worm bed and A2O-MBR-worm bed were constructed. After long-term operation, the sludge reduction of A2O-MBR-w... Show More
  • A Research on the Effect of Worm Predation on Phosphorus Release from Actived Sludge

    Huang Danping, Li Anran, Li Lipin, Zhang Jun, Zuo Wei, Tian Yu, Liu Yingshi

    Issue: Volume 5, Issue 3, June 2017
    Pages: 217-222
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: The sludge reduction in the process of using worms, worms would destroy the sludge extracellular polymer institutions and bacteria, the soluble organic matter, nitrogen, phosphorus and other substances released into the water phase from sludge. By worms on sequencing batch experiments, this study is designed to investigate the sludge of phosphorus ... Show More
  • Research of Sands Clogging by Microbial-Induced

    Huang Shaoqi, Qian Lixi, Lu Taishan, Wang Xiangyang, Shen Junqian

    Issue: Volume 5, Issue 3, June 2017
    Pages: 223-228
    Received: May 10, 2017
    Accepted:
    Published: May 11, 2017
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    Abstract: Experiments are designed to study the effect of soil clogging by microbial-induced calcite precipitation in the short term, and the differences clogging effect under different nutrient solution. Based on the constant head permeability test, microbial-induced calcite precipitation were performed in 2 groups of sand columns, where potato soup and nut... Show More
  • Research and Design of Motion Control System for Automated Warehouse

    Wang Guangdong, Zhu Wu, Zhang Jiamin

    Issue: Volume 5, Issue 3, June 2017
    Pages: 229-235
    Received: May 14, 2017
    Accepted:
    Published: May 16, 2017
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    Abstract: The purpose of this paper is to improve the performance of flexible welding production line in the automated warehouse stacking machine and auto warehouse operation efficiency, for the first time with a control structure of motion controller SIMOTION+ servo driver + servo motor ", the use of SIMOTION technology can realize accurate advantage of mul... Show More
  • Study on Detection Method of Thickness and Dielectric Property of Highway Based on Forward and Inverse Method

    Yin De, Xue Bing, Fan Yao

    Issue: Volume 5, Issue 3, June 2017
    Pages: 236-243
    Received: May 19, 2017
    Accepted:
    Published: May 20, 2017
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    Abstract: Highway,which is the most important transportation channel, plays a very important role in people's production and life. This paper pays attention to the current detection requirement of highway thickness and dielectric properties, based on the electromagnetic field theory and the forward and inverse method, taking advantage of ground penetrating r... Show More