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| 1 | Mechanism of lead immobilization by oxalic acid-activated phosphate rocks显示文摘Lead (Pb) chemical fixation is an important environmental aspect for human health. Phosphate rocks (PRs) were utilized as an adsorbent to remove Pb from aqueous solution. Raw PRs and oxalic acid-activated PRs (APRs) were used to investigate the effect of chemical modification on the Pb-binding capacity in the pH range 2.0-5.0. The Pb adsorption rate of all treatments above pH 3.0 reached 90%. The Pb binding on PRs and APRs was pH-independent, except at pH 2.0 in activated treatments. The X-ray diffraction analysis confirmed that the raw PRs formed cerussite after reacting with the Pb solution, whereas the APRs formed pyromorphite. The Fourier Transform Infrared spectroscopy analysis indicated that carbonate (CO32-) in raw PRs and phosphate (PO43-) groups in APRs played an important role in the Pb-binding process. After adsorption, anomalous block-shaped particles were observed by scanning electron microscopy with energy dispersive spectroscopy. The X-ray photoelectron spectroscopy data further indicated that both chemical and physical reactions occurred during the adsorption process according to the binding energy. Because of lower solubility of pyromorphite compared to cerussite, the APRs are more effective in immobilizing Pb than that of PRs. | Guanjie Jiang Yonghong Liu Li Huang Qingling Fu Youjun Deng Hongqing Hu | 2012 | Journal of Environmental Sciences2012，24，5： | 12 |
| 2 | Electrical properties of fly ash and its decarbonization by electrostatic separation显示文摘The basic principle of fly ash triboelectrification is analysed. The mineral electrical index and test method are introduced. The electric difference of different mineral composition of fly ash is discussed by analysis of chemical and mineral composition of fly ash in Xinwen power plant. The dielectric constant and charge–mass ratio of carbon and ash of fly ash are tested. Combined with the experimental study on rotary triboelectrostatic separation, the charged characteristic of fly ash particles with different size is gained. The results show that the dielectric constant of fly ash with different grain size decreased with the decrease of particle size, which lead to the poor electrical conductivity. Thus it can be seen that particle size plays a leading role in conductivity. The charge of carbon and ash with each size increased with the decreased of particle size; and the charge–mass ratio between carbon and ash with the same size larger with the decrease of size, which indicated that the finer particle size, the more favorable for triboelectrification separation. In the same conditions, the best decarburization effect is realized when the particle size ranges from 0.038 to 0.074 mm, whose decarbonization rate and efficiency index reached 38.93% and120.83% respectively. | Tao Youjun Ding Qingqing Deng Mingrui Tao Dongping Wang Xu Zhang Jie | 2015 | International Journal of Mining Science and Technology2015，25，4： | 8 |
| 3 | A novel solar cell fabricated with spiral photo-electrode for capturing sunlight 3-dimensionally显示文摘A novel solar cell fabricated with spiral photo-electrode for capturing sunlight 3-dimensionally (3D-cell) is proposed in this paper. We studied its performance both in solar simulator and in nature sunlight. Spiral photo-electrode of 3D-cell can receive sunlight from all directions and therefore can track the sun passively. And it is much insensitive to solar azimuth angle and shade. In addition, it increases the area to obtain scattered sunlight and reflected light. Compared with the dye-sensitized solar cells using sandwich structure, it would be more advantageous in the sealing technique. | LIU Yong SHEN Hui DENG Youjun | 2006 | Science China(Technological Sciences)2006，49，6： | 4 |
| 4 | A NEW IMPROVED STRUCTURE OF DYE-SENSITIZED SOLAR CELLS WITH REFLECTION FILM显示文摘A new improved structure of dye- sensi- tized nanocrystalline solar cells (DSSC) for utilizing reflected light was introduced in this paper. Typical DSSC is based on a sandwich structure, which con- sists of photoanode, electrolyte and cathode. For the improved structure of DSSC in this paper, a sliver reflection film was attached to the back of transparent conducting glass of cathode. In this way, the residual light passing through photoanode was reflected to it to be used again. The photocurrent-voltage charac- teristics of DSSC fabricated by two different thickness of TiO2 film were measured to illustrate the effects of utilizing reflected light. As a result, the improved DSSC with reflection film exhibited higher photocur- rent and solar-to-electric conversion efficiency than DSSC without reflection film. | LIU Yong SHEN Hui HUANG Xiaorui DENG Youjun | 2006 | Chinese Science Bulletin2006，51，3： | 4 |
| 5 | Study on device simulation and performance optimization of the epitaxial crystalline silicon thin film solar cell显示文摘Because crystalline silicon thin film(CSiTF) solar cells possess the advantages of crystalline silicon solar cells such as high efficiency and stable performance and those of thin film solar cells such as low cost and so on,it is regarded as the next generation solar cell technology,which is most likely to replace the existing crystalline silicon solar cell technology.In this paper,we performed device simulation on the epitaxial CSiTF solar cell by using PC1D software.In order to make simulation results closer to the actual situation,we adopted a more realistic device structure and parameters.On this basis,we comprehensively and systematically investigated the effect of physical parameters of back surface field(BSF) layer,base and emitter,electrical quality of crystalline silicon active layer,situation of surface passivation,internal recombination and p-n junction leakage on the optoelectronic performance of the epitaxial CSiTF solar cell.Among various factors affecting the efficiency of the epitaxial CSiTF solar cell,we identified the three largest efficiency-affecting parameters.They are the base minority carrier diffusion length,the diode dark saturation current and the front surface recombination velocity in order.Through simulations,we found that the base is not the thicker the better,and the base minority carrier diffusion length must be taken into account when determining the optimal base thickness.When the base minority carrier diffusion length is smaller,the optimal base thickness should be less than or equal to the base minority carrier diffusion length;when the base minority carrier diffusion length is larger,the base minority carrier diffusion length should be at least twice the optimal base thickness.In addition,this paper not only illustrates the simulation results but also explains their changes from the aspect of physical mechanisms.Because epitaxial CSiTF solar cells possess a device structure that is similar to crystalline silicon solar cells,the conclusions drawn in this paper are also applied to crystalline silicon solar cells to a certain extent,particularly to thin silicon solar cells which are the hottest research topic at present. | AI Bin ZHANG YongHui DENG YouJun SHEN Hui | 2012 | Science China(Technological Sciences)2012，55，11： | 4 |
| 6 | Influence of metal ions on sulfonamide antibiotics biochemical behavior in fiber coexisting system显示文摘Metal ions and fiber are common compounds in the livestock and poultry manure,which will affect the fate of organic compounds in aqueous environment. However,limited research has addressed the effect of coexisting metal ions and fiber on the biodegradation of sulfonamide antibiotics. Accordingly, a compositing study was performed to assess the effect of metal ions(Fe3+and Cu2+) on the biodegradation of sulfadimethoxine sodium salt(SDM) in the presence of fiber. The enhanced adsorption of SDM onto fiber in the presence of metal ions can be attributed to the π+–π electron donor acceptor(EDA) interaction. The microbial(Phanerochaete chrysosprium) could easily attach onto fiber forming attached microbial, and the degradation rates of SDM of immobilized bacteria in the presence of Fe3 +were 100%, which were significantly higher than those of free bacteria(45%). This study indicates that Fe3 +and fiber could enhance the biodegradation of SDM. Fiber acts as adsorbent, carrier, and substrate which enhanced the removal of SDM. | Lan Zhang Ruihuan Chen Yun Liu Youjun Deng Zhongpei Li Yuanhua Dong | 2019 | Journal of Environmental Sciences2019，31，6： | 3 |
| 7 | A Study of the Mixing of Cement and Emulsified Asphalt Mortar 显示文摘 | Xiaohui Zeng Youjun Xie Dehua Deng | 2013 | Magazine of Concrete Research2013，65，21： | 1 |
| 8 | Dixon Effect of Structural Stress on the Intercalation Rate of Kaolinite显示文摘 | Youjun Deng Norman White | 2004 | Journal of Colloid and Interface Science2004，250，： | 1 |
| 9 | Molecular configurations and orientations of hydrazine between structural layers of kaolinite显示文摘 | Deng Youjun Joe B Dixon G Norman White | 2003 | Journal of Colloid and Interface Science2003，257，： | 1 |
| 10 | Conductivi- ty behavior of the fresh CA mortar and its relationship with the fluidity properties 显示文摘 | ZENG Xiaohui XIE Youjun DENG Dehua | 2012 | Construction and Build- ing Materials2012，36，3： | 1 |
| 11 | Conductivity behavior of the fresh CA mortar and its relationship with the fluidity properties显示文摘 | ZENG Xiaohui XIE Youjun DENG Dehua | 2012 | Construction and Building Materials2012，36，： | 1 |
| 12 | Conductivity behavior of the fresh CA mortar and its relationship with the fluidity properties显示文摘 | Zeng Xiaohui Xie Youjun Deng Dehua | 2012 | Construction and Building Materials2012，36，3： | 1 |
| 13 | Effect of structural stress on the intercalation rate of kaolinite显示文摘 | DENG Youjun WHITE G Norman DIXON Joe B | 2004 | J Colloid Interface Sci2004，250，： | 1 |
| 14 | Bonding between polyacrylamide and smectite显示文摘 | Youjun Deng Joe B Dixon G Norman White | 2006 | Colloids and Surfaces A: Physicochem2006，，281： | 1 |
| 15 | Bond- ing between polyacrylamide and smectite显示文摘 | Deng Youjun Dixon J B Norman White G | 2006 | Colloids and Surfaces A: Physicochem Eng Aspects2006，，281： | 1 |
| 16 | Effect of Structural Stress on the Intercalation Rate of Kaolinite显示文摘 | DENG Youjun WHITE G N DIXON J B | 2002 | J Colloid Interface Sci2002，250，： | 1 |
| 17 | Effect of Structural Stress on the Intercalation Rate of Kaolinite显示文摘 | DENG Youjun WHITE G Norman DIXON Joe B | 2004 | J Colloid Interface Sci2004，250，： | 1 |
| 18 | Alteration of Kaolinite to Cancrinite and Sodalite by Simulated Hanford Tank Waste and Its Impact on Cesium Retention显示文摘 | Zhao Hongting Deng Youjun Harsh J B | 2004 | Clay Clay Miner2004，52，1： | 1 |
| 19 | Upregulation of CENPM facilitates lung adenocarcinoma progression via PI3K/AKT/mTOR signaling pathway显示文摘Centromere protein M(CENPM)is essential for chromosome separation during mitosis.However,its roles in lung adenocarcinoma(LUAD)progression and metastasis remain unknown.In this study,we aimed to explore the effects of CENPM on LUAD progression as well as the underlying mechanisms.We analyzed the expression of CENPM and its correlation with clinicopathological characteristics using GEO LUAD chip datasets and TCGA dataset.We further investigated the impact of CENPM on LUAD in vitro and in vivo.In silico analysis and qRT-PCR revealed that CENPM is upregulated in LUAD compared with that in normal lung tissues.Via gain/loss-of-function assays,we further found that CENPM promotes the LUAD cell cycle,cell proliferation,migration and invasion,and inhibits cell apoptosis in vitro.The in vivo study showed that loss of CENPM inhibits the growth of A549 xenografts.Furthermore,we found that CENPM can promote the phosphorylation of mTOR rather than directly affect the mTOR content.Inhibition of mTOR activity abrogates the promoting effects of CENPM on cell cycle progression,cell proliferation,migration and invasion.Taken together,these results show that CENPM plays an important role in the growth and metastasis of LUAD and may be a promising therapeutic target in LUAD. | Chao Liu Yun Wang Yuyang Dao Shuting Wang Fei Hou Zhixian Yang Pengjie Liu Juan Lv Ling Lv Gaofeng Li Youjun Zhou Zhiyong Deng | 2022 | Acta Biochimica et Biophysica Sinica2022，54，1： | 1 |
| 20 | Exploration on learning molecular docking with deep learning models显示文摘Background:Molecular docking-based virtual screening(VS)aims to choose ligands with potential pharmacological activities from millions or even billions of molecules.This process could significantly cut down the number of compounds that need to be experimentally tested.However,during the docking calculation,many molecules have low affinity for a particular protein target,which waste a lot of computational resources.Methods:We implemented a fast and practical molecular screening approach called DL-DockVS(deep learning dock virtual screening)by using deep learning models(regression and classification models)to learn the outcomes of pipelined docking programs step-by-step.Results:In this study,we showed that this approach could successfully weed out compounds with poor docking scores while keeping compounds with potentially high docking scores against 10 DUD-E protein targets.A self-built dataset of about 1.9 million molecules was used to further verify DL-DockVS,yielding good results in terms of recall rate,active compounds enrichment factor and runtime speed.Conclusions:We comprehensively evaluate the practicality and effectiveness of DL-DockVS against 10 protein targets.Due to the improvements of runtime and maintained success rate,it would be a useful and promising approach to screen ultra-large compound libraries in the age of big data.It is also very convenient for researchers to make a well-trained model of one specific target for predicting other chemical libraries and high docking-score molecules without docking computation again. | Qin Xie Wei Ma Jianhang Zhang Shiliang Li Xiaobing Deng Youjun Xu Weilin Zhang | 2023 | Quantitative Biology2023，11，3： | 0 |
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