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| 1 | PM_(2.5), PM_(10) and health risk assessment of heavy metals in a typical printed circuit noards manufacturing workshop显示文摘A typical Printed Circuit Board(PCB) manufacturer was chosen as the object of this study.During PCB processing, fine particulate matter and heavy metals(Cu, Zn, Pb, Cr, Cd and Ni)will be released into the air and dust, which then impact workers' health and the environment. The concentrations of total suspended particle(TSP), PM10 and PM2.5in the off-site were 106.3, 90.0 and 50.2 μg/m3, respectively, while the concentrations of TSP, PM10 and PM2.5in the workshops ranged from 36.1 to 365.3, from 27.1 to 289.8 and from 22.1 to212.3 μg/m3, respectively. Almost all six of the heavy metals were detected in all of the particle samples except Cd. For each workshop, it was obvious that Zn was the most enriched metal in TSP, followed by Cu > Pb(Cr) > Ni > Cd, and the same trend was found for PM10 and PM2.5. In the dust samples, Cu(which ranged from 4.02 to 56.31 mg/g) was the most enriched metal, followed by Zn, Cr, Pb, Ni and Cd, and the corresponding concentrations ranged from 0.77 to 4.47, 0.37 to 1.59, 0.26 to 0.84, 0.13 to 0.44 and nd to0.078 mg/g, respectively. The health risk assessment showed that noncancerous effects are unlikely for Zn, Pb, Cr, Cu, Cd and Ni. The carcinogenic risks for Cd and Ni were all lower than 10-6, except for Cr. This result indicates that carcinogenic risks for workers are relatively possible in the workshops. These findings suggest that this technology is advanced from the perspective of environmental protection in the waste PCB's recycling industry. | Peng Zhou Jie Guo Xiaoyu Zhou Wei Zhang Lili Liu Yangcheng Liu Kuangfei Lin | 2014 | Journal of Environmental Sciences2014，26，10： | 18 |
| 2 | Preparation of Tb(Pht) 3 phen/Rubber Composites and Characterization of Their Fluorescent Properties显示文摘 | YangCheng Liu Li Lu Yonglai | 2005 | Journal of Applied Poly- mer Science2005，96，： | 1 |
| 3 | Aberrant frequency of IL-10-producing B cells and its association with Treg and MDSC cells in Non Small Cell Lung Carcinoma patients显示文摘 | Jinlin Liu Huan Wang Qinhua Yu Sujie Zheng Yangcheng Jiang Yiyan Liu Guorong Yuan Liannv Qiu | 2015 | Human Immunology2015，，： | 1 |
| 4 | Resistivity response of coal under hydraulic fracturing with different injection rates:A laboratory study显示文摘Resistivity will have different response characteristics to the hydraulic fracture propagation process. In this work, a resistivity testing system for hydraulic fracturing specimens was established. Resistivity and acoustic emission(AE) information were jointly analysed to determine the dynamic response characteristics of resistivity during hydraulic fracture propagation. The results show that the water and fracture exert a competitive influence on the connection structure of the circuit, and there are two significant peak resistivity points in the curve, presenting a double peak therein. The peak resistivity data of the specimen with a larger fracture area are much different from the initial value. With the increase of the rate of injection, the range of variation of the highest value that can be reached with the specimen resistivity decreases. High resistivity rates or high resistivity fluctuations exhibit rapid a release of fracture energy. The fracture failure mode dominated by shear fractures makes the formation produce a “series+parallel” electrical connection structure;a calculation model of formation resistivity based on shear and tensile failure was proposed to characterize the proportion of different types of hydraulic fractures and elucidate the control effect of matrix resistivity on the electrical performance of the overall circuit structure. | Mingyang Song Quangui Li Qianting Hu Yanqing Wu Guanhua Ni Yangcheng Xu Yuebing Zhang Liangping Hu Jialin Shi Jichuan Liu Yize Deng | 2022 | International Journal of Mining Science and Technology2022，32，4： | 1 |
| 5 | Petroleum exploration breakthrough and geological significance in Cretaceous Yingcheng and Denglouku formations of Shuangcheng area, northern Songliao Basin, NE China显示文摘Based on drilling geological,geochemical,geophysical and production test data,the characteristics of source rocks,reservoir rocks and caprocks,as well as the process of hydrocarbon generation,trap evolution and oil accumulation of the oil-bearing assemblage composed of the Cretaceous Yingcheng Formation(K1yc)and Denglouku Formation(K1d)in the Shuangcheng area,northern Songliao Basin,NE China,were analyzed by using the research methods for petroleum systems.The source rocks mainly exist in K1yc,with the organic matters mainly originated from lower aquatic organisms and algae,and reaching the grade of high-quality source rock in terms of organic abundance.The crude oil,which is characterized by low density,high freezing point and high wax content,is believed to have generated by the K1yc source rocks.The reservoir rocks include K1d sandstones and K1yc glutenites.The mudstone in the fourth member of K1d serves as the direct caprock of the oil reservoir.The oil was generated during the period between Yaojia Formation and Nenjiang Formation,and then accumulated during the periods of Nenjiang Formation and Paleogene–Neogene.The traps evolved in three stages:the late Yingcheng Formation,the late Quantou Formation and the late Nenjiang Formation,forming structural and structural-lithologic reservoirs.It is concluded that good source-reservoir-caprock assemblage,late hydrocarbon charging,short migration distance and stable tectonic setting are favorable factors for the formation of oil reservoirs. | LIU Chao FU Xiaofei LI Yangcheng WANG Haixue SUN Lidong LU Jiamin LI Junhui SUN Youhai SHI Lidong HU Huiting YUAN Hongqi YANG Zicheng | 2023 | Petroleum Exploration and Development2023，50，1： | 0 |
| 6 | Discussion about the Application of CINRAD / SA Radar Using Negative Elevation Angle Mode in Observation of Tropical Cyclone显示文摘The study aimed to discuss the application of CINRAD /SA radar using negative elevation angle mode in observation of tropical cyclone.Firstly,the calculation formula of the lowest detecting height of CINRAD /SA radar was educed,and then the application of negative angle mode in Changle Radar Station was introduced. Through analyzing different observing abilities for tropical cyclone detected at different elevation angles,we discussed the limitation of CINRAD /SA radar using negative angle mode,and finally proposed some suggestions on CINRAD /SA radar using negative elevation angle mode to observe tropical cyclone. | Zhang Yangcheng You Wenhua Chen Hui Liu Xiang Fan Nengzhu | 2014 | Meteorological and Environmental Research2014，5，2： | 0 |
| 7 | Highly efficient and flexible preparation of water-dispersed Fe3O4 nanoclusters using a micromixer显示文摘Solvent exchange is widely used to synthesize magnetic nanoclusters (MNCs).However,it remains a challenge to increase the production and decrease the addition ofsurfactants,both of which are important for the application and functionalization of MNCs.Herein,we use a rapid and tunable mixing method to control the assembly of Fe3O4 nanoparticles.This method involves shear-mixing in a channel of a Tjunction micromixer.Smaller and more monodisperse MNCs were synthesized with less surfactant,when compared with conventional bulk synthesis.Varying the mixing rate and the formula of the magnetic suspension allowed for the flexible adjustment of the nanocluster size while maintaining a uniformly sized MNCs.The flow synthesis and ease of scale-up make this method potentially suitable for broad industrial application. | Xiaojing Liu Yangcheng Lu | 2019 | Particuology2019，17，4： | 0 |
| 8 | Preparation and characterization of bimetallic Pt^Ni-P/CNT catalysts via galvanic displacement reaction on electrolessly-plated Ni-P/CNT显示文摘Platinum-based bimetallic catalysts have broad applications in polymer electrolyte membrane fuel cells and water splitting. In this work,galvanic displacement reaction was employed to prepare Pt^Ni-P/CNT catalysts using electrolessly-plated Ni-P/CNT. These catalysts were extensively characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. Catalytic activities towards methanol oxidation and hydrogen evolution reactions were evaluated and benchmarked with a commercial Pt/C catalyst. Uniform dispersion of Pt on Ni-P particles led to high Pt utilization, and the electrochemical surface area of Pt^Ni-P/CNT with 12.1% Pt loading was found to be 126 m2 gà1, higher than that of a commercial Pt/C(77.9 m2 gà1). The Tafel slopes for the Pt^Ni-P/CNT catalysts were also found to be smaller than that of Pt/C indicating faster kinetics for hydrogen evolution reaction. | Yangcheng Jiang Zhen Liu Jili Song Ikwhang Chang Jianhuang Zeng | 2018 | Green Energy & Environment2018，3，4： | 0 |
| 9 | 带蒂额肌帽状腱膜裂层颅骨瓣修复前颅底(英文)显示文摘Objective:The aim of our study was to reconstruct soft and hard tissue perforating defects of the anterior skull base in a 1-stage surgical procedure with a combined craniofacial approach. Methods:Soft and hard tissue defects of the anterior skull base were successfully reconstructed in 43 patients during a 1-stage surgery through the use of frontalis muscle galea aponeurotica skull flaps with 1 or 2 vascularized pedicles. The skull flap areas were up approximately 7cm × 14cm. Results:Intracranial infection and cerebrospinal fluid leakage were not observed in the 43 patients, and all incisions healed. Of 33 malignant tumor patients, 25 patients received follow-up examinations for longer than 2 years, and 18 patients survived for 2 years. Conclusion:Frontalis muscle galea aponeurotica skull pedicle flaps provided a constant blood supply and resulted in soft and thin tissue. The pedicle flaps, together with the external cranial bone plate, strengthened the support, but still allowed for bending and shaping. In addition, the flap harvesting approach was consistent with surgery approach, without aesthetic compromises. | Kun Liu Guanghui Wang Hong Zhang Yuping Wu Yangcheng Lv Jingsong Liu Jieke Ma Cheng Li Jiang Zhu | 2013 | The Chinese-German Journal of Clinical Oncology2013，12，6： | 0 |
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