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| 1 | Lubricating performances of graphene oxide and onion-like carbon as water-based lubricant additives for smooth and sand-blasted steel discs显示文摘Graphene oxide(GO)nanosheets and onion‐like carbon(OLC)nanoparticles were synthesized from natural graphite powder and candle soot,respectively,and characterized by transmission electron microscopy and Raman spectroscopy.The lubricating performances of GO and OLC as lubricant additives in water were comparatively evaluated using a ball‐on‐disc tribometer.The effects of sand blasting of a steel disc on its morphology and tribological property were evaluated.The results show that the two nanomaterials,GO and OLC,when used as lubricant additives in water effectively reduce the friction and wear of the sliding discs,which is independent of the disc surface treatment.On applying heavy loads,it is observed that GO exhibits superior friction‐reducing and anti‐wear abilities compared to those of OLC—a trace amount of GO can achieve a lubricating ability equivalent to that of an abundant amount of OLC.Furthermore,it is observed that sand blasting cannot improve the wear resistance of the treated steel disc,even though the hardness of the disc increased after the treatment.The possible anti‐wear and friction‐reducing mechanisms of the GO and OLC as lubricant additives in water are discussed based on results for the wear surfaces obtained by scanning electron microscopy,Raman spectroscopy,and X‐ray photoelectron spectroscopy。 | Fenghua SU Guofu CHEN Ping HUANG | 2020 | Friction2020，8，1： | 9 |
| 2 | Prognostic value of programmed death.1, programmed death-ligand 1, programmed death-ligand 2 expression, and CD8(+) T cell density in primary tumors and metastatic lymph nodes from patients with stage T1.4N+M0 gastric adenocarcinoma显示文摘Background: Anti-programmed death-1/programmed death-ligand 1(PD-1/PD-L1) immunotherapy has been proved to be effective on gastric cancer in ongoing clinical trials. However, the value of PD-L1 in predicting responses of patients with gastric cancer to anti-PD-1/PD-L1 immunotherapy is controversial. Some studies suggested that intra-and inter-tumoral heterogeneity of PD-L1 expression might explain the controversy.This study aimed to analyze the expression of PD-L1, PD-L2, and PD-1 as well as CD8(+) T-cell density in primary tumors and lymph nodes from patients with stage T1-4 N+M0 gastric adenocarcinoma to explore the heterogeneity of PD-1 signaling pathway molecules.Methods: In primary tumors and metastatic as well as non-metastatic lymph nodes from patients with stage T1-4 N+M0 gastric adenocarcinoma, we detected PD-L1 and PD-L2 expression with immunohistochemistry. CD8(+)T-cell density in primary tumors and PD-1 expression on CD8(+)T cells were detected with immunofluorescence. Univariate analysis was used to determine the prognostic values of them. Cox proportional hazard regression model was used to identify independent risk factors that affect patients' overall survival and disease-free survival.Results: Among 119 eligible patients who had undergone surgical resection, the positive rate of PD-L1 was higher in metastatic lymph nodes than in primary tumors(45.4% vs. 38.7%, P = 0.005); the positive rate of PD-1 on CD8(+)T cells was significantly higher in primary tumors and metastatic lymph nodes than in tumor-free lymph nodes(both P < 0.001). The intensity of PD-1 expression on CD8(+) T cells in primary tumors and in metastatic lymph nodes were stronger than that in tumor-free lymph nodes from the same patient. Beside, the positive rate of PD-L2 did not show any differences between primary tumors and metastatic lymph nodes. In multivariate analysis, PD-L1 expression,PD-L2 expression, a low density of CD8(+) T cells in primary tumors, and PD-1 expression on CD8(+) T cells in primary tumors were associated with poor prognosis.Conclusion: The expression of PD-L1 is heterogeneous in primary tumors and in metastatic lymph nodes from patients with stageT1-4 N+M0 gastric adenocarcinoma, which might explain the inconsistent results in assessing the prognostic value of PD-L1 expression in previous studies. | Yuan Gao Su Li Dazhi Xu Shangxiang Chen Yuchen Cai Wenqi Jiang Xinke Zhang Jin Sun Kefeng Wang Boyang Chang Fenghua Wang Minghuang Hong | 2017 | Chinese Journal of Cancer2017，36，11： | 8 |
| 3 | A User-Centric Data Secure Creation Scheme in Cloud Computing显示文摘Due to the use of the cloud computing technology,the ownership is separated from the administration of the data in cloud and the shared data might be migrated between different clouds,which would bring new challenges to data secure creation,especially for the data privacy protection.We propose a User-centric data secure creation scheme(UCDSC) for the security requirements of resource owners in cloud.In this scheme,a data owner first divides the users into different domains.The data owner encrypts data and defines different secure managing policies for the data according to domains.To encrypt the data in UCDSC,we present an algorithm based on Access control conditions proxy re-encryption(ACC-PRE),which is proved to be master secret secure and Chosen-ciphertext attack(CCA) secure in random oracle model.We give the application protocols and make the comparisons between some existing approaches and UCDSC. | SU Mang LI Fenghua SHI Guozhen GENG Kui XIONG Jinbo | 2016 | Chinese Journal of Electronics2016，25，4： | 7 |
| 4 | Microstructure and Mechanical Properties of Mg–3Al–Zn Magnesium Alloy Sheet by Hot Shear Spinning显示文摘Hot shear spinning experiments with Mg–3.0 Al–1.0 Zn–0.5 Mn(AZ31 B, wt%) magnesium alloy sheets were conducted at various temperatures, spindle speeds and feed ratios to investigate the effects of these processing parameters on the microstructure, crystallographic texture and mechanical properties. The AZ31 B sheet displayed good shear formability at temperatures from 473 to 673 K, spindle speeds from 300 to 600 rev/min and feed ratios from 0.1 to 0.5 mm/rev. During the dynamic recrystallization process, the grain size and texture were affected by the deformation temperature of the hot shear spinning process. Each of the spun sheets presented a strong basal texture, and the c-axis of most of the grains was parallel to the normal direction. The optimal hot shear spinning parameters were determined to be a temperature of 473 K, a spindle speed of 300 rev/min and a feed ratio of 0.1 mm/rev. The yield strength, ultimate tensile strength and elongation in the rolled direction reached 221 MPa, 288 MPa and 14.1%, and those in the transverse direction reached 205 MPa, 280 MPa and 12.4%, respectively. The improved strength and decreased mechanical anisotropy resulted from the fine grain size and strong basal texture. | Fenghua Wang Peng Su Linxin Qin Shuai Dong Yunliang Li Jie Dong | 2020 | Acta Metallurgica Sinica(English Letters)2020，33，9： | 4 |
| 5 | Biodegradation of organochlorine pesticide endosulfan by bacterial strain Alcaligenes faecalis JBW4显示文摘The recently discovered endosulfan-degrading bacterial strain Alcaligenes faecalis JBW4 was isolated from activated sludge. This strain is able to use endosulfan as a carbon and energy source. The optimal conditions for the growth of strain JBW4 and for biodegradation by this strain were identified, and the metabolic products of endosulfan degradation were studied in detail. The maximum level of endosulfan biodegradation by strain JBW4 was obtained using broth at an initial pH of 7.0, an incubation temperature of 40°C and an endosulfan concentration of 100 mg/L. The concentration of endosulfan was determined by gas chromatography. Strain JBW4 was able to degrade 87.5% of α-endosulfan and 83.9% of β-endosulfan within 5 days. These degradation rates are much higher than the previously reported bacterial strains. Endosulfan diol and endosulfan lactone were the major metabolites detected by gas chromatography-mass spectrometry; endosulfan sulfate, which is a persistent and toxic metabolite, was not detected. These results suggested that A. faecalis JBW4 degrades endosulfan via a non-oxidative pathway. The biodegradation of endosulfan by A. faecalis is reported for the first time. Additionally, the present study indicates that strain JBW4 may have potential for the biodegradation of endosulfan residues. | Lingfen Kong Shaoyuan Zhu Lusheng Zhu Hui Xie Kunchang Su Tongxiang Yan Jun Wang Jinhua Wang Fenghua Wang Fengxia Sun | 2013 | Journal of Environmental Sciences2013，25，11： | 4 |
| 6 | Study on the friction and wear properties of carbon fabric composites reinforced with micro- and nano-particles显示文摘 | ZHANG Zhaozhu SU Fenghua WANG Kun | 2005 | Materials Science and Engineering A2005，404，12： | 1 |
| 7 | Tribological behavior of hybrid glass/PTFE fabric composites with phenolic resin binder and nano-TiO2 filler显示文摘 | SU Fenghua ZHANG Zhaozhu LIU Weimin | 2008 | Wear2008，264，56： | 1 |
| 8 | Friction and wear of Synfluo 180XF wax and nano-Al203 filled Nomex fabric composites显示文摘 | SU Fenghua ZHANG Zhaozhu WANG Kun | 2006 | Materials Science and Engineering A2006，430，12： | 1 |
| 9 | Supercritical carbon dioxide-assisted reactive extrusion for preparation long-chain branching polypropylene and its rheology显示文摘 | Su Fenghua Huang Hanxiong | 2011 | The Journal of Supercritical Fluids2011，56，1： | 1 |
| 10 | Supercritical Carbon Di- oxideJassisted Reactive Extrusion for Preparation Long- chain Branching Polypropylene and Its Rheology 显示文摘 | Fenghua Su Hanxiong Huang | 2011 | The Journal of Supercritical Fluids2011，56，1： | 1 |
| 11 | Supercritical Carbon Diox- ide-Assisted Reactive Extrusion for Preparation Long-Chain Branching Polypropylene and Its Rheology 显示文摘 | Su Fenghua Huang Hanxiong | 2011 | JSupercrit Flu- id2011，56，1： | 1 |
| 12 | Rheology and Melt Strength of Long Chain Branching Polypropylene Prepared by Reac- tive Extrusion with Various Peroxides 显示文摘 | Su Fenghua Huang Hanxiong | 2010 | Polym Eng Sei2010，50，2： | 1 |
| 13 | Influence of Polyfunctional Monomer on Melt Strength and Rheology of Long-Chain Branched Polypropylene by Reactive Extrusion 显示文摘 | Su Fenghua Huang Hanxiong | 2010 | J Appl PolymSci2010，116，5： | 1 |
| 14 | Rheology and Melt Strength of Long Chain Branching Polypropylene Prepared by Reactive Extrusion with Various Peroxides 显示文摘 | Su Fenghua Huang Hanxiong | 2010 | Polym Eng Sci2010，50，2： | 1 |
| 15 | Rheology and Thermal Pro- perties of Polypropylene Modified by Reactive Extrusion with Dicumyl Peroxide and Trimethylol Propane Triacrylate 显示文摘 | Su Fenghua Huang Hanxiong | 2009 | Adv PolymTech2009，28，1： | 1 |
| 16 | Friction and wear behavior of hybrid glass/PTFE fabric composite reinforced with surface modified nanometer ZnO显示文摘 | Su Fenghua Zhang Zhaozhu Liu Weimin | 2008 | Wear2008，265，34： | 1 |
| 17 | Simultaneously spray-assisted assembling reversible superwetting coatings for oil-water separation显示文摘Here,superhydrophobic cuprous oxide(Cu2O)with hierarchical micro/nanosized structures was synthesized via sprayassisted layer by layer assembling.The asprepared superhydrophobic meshes with high contact angle(159.6°)and low sliding angle(1°)are covered with Cu_(2)O 'coral reef'like micro/nanosized structures.Interestingly,the superhydrophobic mesh surfaces became superhydrophilic again due to the oxidization of Cu_(2)O to CuO by annealing at a higher temperature(300℃).And the superhydrophobic properties would be recovered by heating at 120℃.Furthermore,the superwetting meshes were applied to design a miniature device to separate light or heavy oil from the wateroil mixtures with excellent separation efficiency.These superwetting surfaces by simultaneously sprayassisted layer by layer assembling technique show the potential application in universal oilwater separation. | Dexin Chen Zhixin Kang Wei Li Fenghua Su | 2021 | Chinese Journal of Chemical Engineering2021，34，4： | 1 |
| 18 | Rheology and Thermal Behav- ior of Long Branching Polypropylene Prepared by Reactive Ex- trusion显示文摘 | Su Fenghua Huang Hanxiong | 2009 | JAppl Polym Sci2009，113，4： | 1 |
| 19 | Brief Talk About Big Data Graph Analysis and Visualization显示文摘Graphical methods are used for construction.Data analysis and visualization are an important area of applications of big data.At the same time,visual analysis is also an important method for big data analysis.Data visualization refers to data that is presented in a visual form,such as a chart or map,to help people understand the meaning of the data.Data visualization helps people extract meaning from data quickly and easily.Visualization can be used to fully demonstrate the patterns,trends,and dependencies of your data,which can be found in other displays.Big data visualization analysis combines the advantages of computers,which can be static or interactive,interactive analysis methods and interactive technologies,which can directly help people and effectively understand the information behind big data.It is indispensable in the era of big data visualization,and it can be very intuitive if used properly.Graphical analysis also found that valuable information becomes a powerful tool in complex data relationships,and it represents a significant business opportunity.With the rise of big data,important technologies suitable for dealing with complex relationships have emerged.Graphics come in a variety of shapes and sizes for a variety of business problems.Graphic analysis is first in the visualization.The step is to get the right data and answer the goal.In short,to choose the right method,you must understand each relative strengths and weaknesses and understand the data.Key steps to get data:target;collect;clean;connect. | Guang Su Fenghua Li Wangdong Jiang | 2019 | Journal on Big Data2019，1，1： | 1 |
| 20 | Friction and Wear behavior of glass fabric/phenolic resin composites with surface- modified glass fabric显示文摘 | Fenghua Su Zhaozhu Zhang | 2009 | Journal of Applied Polymer Science2009，112，2： | 1 |
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