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| 1 | Hypoxia-inducible factor-lαand semaphorin4D genes involved with tumor-associated macrophage-induced metastatic behavior and clinical significance in colon cancer显示文摘 | Mu Linjun Wang Jinshen Chen Yuezhi Li Leping Guo Xiaobo Zheng Sheng Jing Changqing | 2014 | Chinese Medical Journal2014，，20： | 15 |
| 2 | Regionalization based on spatial and seasonal variation in ground-level ozone concentrations across China显示文摘Owing to the vast territory of China and strong regional characteristic of ozone pollution,it's desirable for policy makers to have a targeted and prioritized regulation and ozone pollution control strategy in China based on scientific evidences. It's important to assess its current pollution status as well as spatial and temporal variation patterns across China.Recent advances of national monitoring networks provide an opportunity to insight the actions of ozone pollution. Here, we present rotated empirical orthogonal function(REOF)analysis that was used on studying the spatiotemporal characteristics of daily ozone concentrations. Based on results of REOF analysis in pollution seasons for 3 years' observations, twelve regions with clear patterns were identified in China. The patterns of temporal variation of ozone in each region were separated well and different from each other, reflecting local meteorological, photochemical or pollution features. A rising trend in annual averaged Eight-hour Average Ozone Concentrations(O_3-8 hr) from 2014 to 2016 was observed for all regions, except for the Tibetan Plateau. The mean values of annual and 90 percentile concentrations for all 338 cities were 82.6 ± 14.6 and 133.9 ± 25.8 μg/m^3,respectively, in 2015. The regionalization results of ozone were found to be influenced greatly by terrain features, indicating significant terrain and landform effects on ozone spatial correlations. Among 12 regions, North China Plain, Huanghuai Plain, Central Yangtze River Plain, Pearl River Delta and Sichuan Basin were realized as priority regions for mitigation strategies, due to their higher ozone concentrations and dense population. | Linjun Cheng Shuai Wang Zhengyu Gong Hong Li Qi Yang Yeyao Wang | 2018 | Journal of Environmental Sciences2018，30，5： | 14 |
| 3 | Carbonatites in China:A review for genesis and mineralization显示文摘Carbonatites 是通常与象 REE, Cu,和 P 那样的经济地珍贵的物质的累积有关。在到联系硅酸盐岩石的 carbonatites 和他们的关系的起源上的争论是进行中的大约 45 年了。全球,岩石表示特性地比沉积碳酸盐岩石在 Ba, Sr 和 REE 显示更多的 geochemical 丰富。然而,因为第二等的矿物质效果, carbonatites geochemical 特征被争论。从在在中国的 Qinling, Panxi 区域,和 Bayan Obo 的 carbonatites 的形成岩石的碳酸盐显示出从 LREE 丰富到扁平的模式的 REE 分发模式。他们被超过 10 比第二等的碳酸盐的高预定的一个 Sr 内容描绘。从 Bayan Obo H8 白云石云石的纹理粗糙、有细密纹理的白云石也显示出类似的高 Sr 丰富,显示他们具有火的起源。在中国 carbonatites 的一些碳酸盐显示出 REE (特别 HREE ) 整个岩石的类似于那些的内容和分布模式。这些恼人的 carbonatites 显示相对 high-Si 降低在磅和红外之间的铂组元素和更强壮的分别挤出的 carbonatite。这显示很恼人的 carbonatites 可以是碳酸盐堆积。在 Panxi 区域的 Maoniuping 和 Daluxiang 是大 REE 沉积物。热水的荧石矿石静脉发生在 carbonatite 身体外面并且是在 wallrock 的 emplaced 正长岩。在 Maoniuping 的荧石有类似于 carbonatite 的 Sr 和 Nd 同位素。Daluxiang 荧石在 Maoniuping 显示出与那些不同的 Sr 和 REE 作文。差别被 carbonatites 和形成岩石的碳酸盐反映,显示那个 REE 矿化作用与 carbonatites 有关。碳酸盐矿物质的 cumulate 进程从 LREE 由于为在碳酸盐和 carbonatite 之间的 REE 的系数融化的低分区和增加在 volatiles 和 LREE 使 fractionated 液体富有到 HREE。导出 carbonatite 的液体与 wallrock 交往了形成 REE 矿石静脉。发生在 Bayan Obo orebodies 附近的 carbonatite 女同性恋的数量可以支持一样的矿化作用模型,即液体从 carbonatite 女同性恋演变,这与 H8 白云石大理石反应了,并且这样纹理粗糙、有细密纹理的白云石的不同 REE 和同位素作文可能与反应过程有关。 | Cheng Xu Linjun Wang Wenlei Song Min Wu | 2010 | Geoscience Frontiers2010，1，1： | 10 |
| 4 | Comparison of sentinel lymph node detection performances using blue dye in conjunction with indocyanine green or radioisotope in breast cancer patients: a prospective singlecenter randomized study显示文摘Objective:This randomized study aimed to compare the clinical efficacy between the novel dual tracer composed of indocyanine green(ICG)and blue dye(BD)and the conventional dual tracer composed of radioisotope and BD for sentinel lymph node(SLN)mapping in patients with breast cancer.Methods:This study enrolled 471 clinically lymph node-negative patients with primary breast cancer.All patients underwent mastectomy,and those undergoing sentinel lymph node biopsy(SLNB)were randomized to receive blue dye plus radioisotope(RB group)or BD plus ICG(IB group).The detection performances on SLN identification rate,positive SLN counts,detection sensitivity,and false-negative rate were compared between the two groups.Results:In the IB group,97%(194/200)of the patients who underwent the ICG and BD dual tracer injection showed fluorescentpositive lymphatic vessels within 2–5 min.The identification rate of SLNs was comparable between the IB group(99.0%,198/200)and the RB group(99.6%,270/271)(P=0.79).No significant differences were observed in the identification rate of metastatic SLNs(22.5%vs.22.9%,P>0.05,RB group vs.IB group,the same below),positive SLN counts(3.72±2.28 vs.3.91±2.13,P>0.05),positive metastatic SLN counts(0.38±0.84 vs.0.34±0.78,P>0.05),SLNB detection sensitivity(94.4%vs.92.5%,P>0.05),or false-negative rate(5.6%vs.7.5%,P>0.05)between the two groups.Conclusions:ICG can be used as a promising alternative tracer for radioisotope in SLN mapping,and when it is combined with BD in lymphangiography,it offers comparable detection sensitivity compared to the conventional lymphatic mapping strategies that are widely used in clinical practice. | Long Yuan Xiaowei Qi Yi Zhang Xinhua Yang Fan Zhang Linjun Fan Li Chen Kongyong Zhang Ling Zhong Yanling Li Sijie Gan Wenying Fu Jun Jiang | 2018 | Cancer Biology & Medicine2018，15，4： | 9 |
| 5 | Effect of corrosive media on galvanic corrosion of complicated tri-metallic couples of 2024 Al alloy/Q235 mild steel/304 stainless steel显示文摘Galvanic corrosion of tri-metallic couples is more complicated than that of bi-metallic couples. In this study, the effect of the pH of corrosive media on the galvanic corrosion of 2024 A1 alloy/Q235 mild steel/304 stainless steel tri-metallic couples was investigated using potentiodynamic polarization, scanning electron microscopy, scanning vibrating electrode technique and a multi-channel galvanic corrosion meter. The results show that 2024 always acts as the only anode in 3.5 wt% NaCl at pH 5.56,9.72 and 12.0, while both Q235 and 2024 act as anodes at pH 2.39 in the initial stage and then the role of Q235 changes at longer coupling time, which can be attributed to the effect of pH on the surface film of 2024. It is also found that the galvanic current density of a tri-metallic couple is the superposition of two bi-metallic couples when cathodic reactions are controlled by the diffusion of oxygen, otherwise it is smaller than that of the sum of two bi-metallic couples. The localized corrosion instead of uniform corrosion of anodic metal is accelerated by galvanic corrosion. | Linjun Shi Xiuying Yang Yingwei Song Dan Liua Kaihui Dong Dayong Shan En-Hou Han | 2019 | Journal of Materials Science & Technology2019，35，9： | 8 |
| 6 | Improving the removal of fine particles by chemical agglomeration during the limestone-gypsum wet flue gas desulfurization process显示文摘Coal-fired power plants are considered a major source of fine particle emissions in China.Aimed to improve the removal efficiency of fine particles during the limestone-gypsum wet flue gas desulfurization(WFGD) process, a novel technology using chemical agglomeration to abate the emission of fine particles is presented herein. The relationship between fine particle emission and the proportion of fine particles in the desulfurization slurry was studied.Additionally, the influence of chemical agglomeration on fine particle size distribution, both in the flue gas and slurry was experimentally investigated. When chemical agglomeration agents were added to the desulfurization slurry, the fine particle removal performance as well as the effects of the operation parameters was also explored via the simulated experimental facility.The results revealed that the fine particles in both the desulfurization slurry and flue gas were significantly enlarged after the addition of the agglomeration agents. This was more marked in the submicron particles. Thus, the proportion of fine particles(< 10 μm) in the slurry decreased from 31.1% to 22.6%. An increase in the desulfurization slurry temperature and liquid-to-gas ratio aided the reduction in fine particle emission. Moreover, the addition of an agglomeration agent in the slurry did not affect the desulfurization efficiency of the desulfurization tower and even promoted the WFGD process. Thus, the proposed chemical agglomeration technique reduced the fine particle emission of the WFGD system by ~30%, while a desulfurization efficiency >90% was maintained. | Lei Zhou Yong Liu Lvyuan Luo Zhulin Yuan Linjun Yang Hao Wu | 2019 | Journal of Environmental Sciences2019，31，6： | 8 |
| 7 | Investigation on the relationship between the fine particle emission and crystallization characteristics of gypsum during wet flue gas desulfurization process显示文摘The relationship between the fine particles emitted after desulfurization and gypsum crystals in the desulfurization slurry was investigated,and the crystallization characteristics varying with the operation parameters and compositions of the desulfurization slurry were discussed.The results showed that the fine particles generated during the desulfurization process were closely related to the crystal characteristics in the desulfurization slurry by comparison of their morphology and elements. With the higher proportion of fine crystals in the desulfurization slurry,the number concentration of fine particles after desulfurization was increased and their particle sizes were smaller,indicating that the optimization of gypsum crystallization was beneficial for the reduction of the fine particle emission. The lower p H value and an optimal temperature of the desulfurization slurry were beneficial to restrain the generation of fine crystals in the desulfurization slurry. In addition,the higher concentrations of the Fe^(3+)ions and the F^- ions in the desulfurization slurry both promoted the generation of fine crystals with corresponding change of the morphology and the effect of the Fe^(3+) ions was more obvious.With the application of the desulfurization synergist additive,it was beneficial for the inhibition of fine crystals while the thinner crystals were generated. | Danping Pan Hao Wu Linjun Yang | 2017 | Journal of Environmental Sciences2017，29，5： | 8 |
| 8 | Effect of SiO2 addition on NH4HSO4 decomposition and SO2 poisoning over V2O5-MoO3/TiO2-CeO2 catalyst显示文摘The deposition of NH4 HSO4 and the poisoning effect of SO2 on SCR catalyst are the main obstacles that restrict the industrial application of CeO2-doped SCR catalysts.In this work,deposited NH4 HSO4 decomposition behavior and SO2 poisoning over V2 O5-MoO3/TiO2 catalysts modified with CeO2 and SiO2 were investigated.By the means of characterization analysis,it was found that the addition of SiO2 into VMo/Ti-Ce had an impact on the interaction existed between catalyst surface atoms and NH4 HSO4.Temperatureprogrammed methods and in situ diffused reflectance infrared Fourier transform spectroscopy(DRIFTS)experiments indicated that the doping of SiO2 promoted the decomposition of deposited NH4 HSO4 on VMo/Ti-Ce catalyst surface by reducing the thermal stability of NH4 HSO4 and enhancing the NH4 HSO4 reactivity with NO in low temperature.And this improvement may be the reason for the better catalytic activity than VMo/Ti-Ce in the case of NH4 HSO4 deposition.Accompanied with cerium sulfate species generated over catalyst surface,the conversion of SO2 to SO3 was inhibited in SiCe mixed catalyst.The addition of SiO2 could promote the decomposition of cerium sulfate,which may be a potential strategy to enhance the resistance of SO2 poisoning over CeO2-modifed catalysts. | Chengqiang Zheng Teng Cheng Linjun Yang Hao Wu Hongmei Fan | 2020 | Journal of Environmental Sciences2020，32，5： | 6 |
| 9 | Optimizing zeolite stabilized Pt-Zn catalysts for propane dehydrogenation显示文摘Propane dehydrogenation(PDH)provides an alternative route to non-petroleum based propylene and eligible catalysts with good overall performance are still being explored.Herein,we report the construction of zeolite stabilized Pt-Zn catalysts Pt-Zn/Si-Beta for PDH.Characterization results from transmission electron microscopy(TEM),ultraviolet-visible(UV-vis)and Fourier transform infrared(FTIR)spectroscopy reveal that highly-dispersed Zn species are stabilized by the silanols from zeolite framework dealumination,which then act as the anchoring sites for Pt species.The close contact between Pt-Zn species and the electronic interaction thereof make Pt-Zn/Si-Beta robust PDH catalysts.Under optimized conditions,a high propylene production rate of 4.11 molmol_(Pt)^(-1)s^(-1),high propylene selectivity of 98% and a sustainable deactivation rate of~0.02 h^(-1)can be simultaneously achieved at 823 K.Coke deposition is not the key reason for the catalytic deactivation,while the loss of Zn species and the resulting aggregation of Pt species under high temperatures are responsible for the irreversible deactivation of Pt-Zn/Si-Beta catalyst in PDH reaction. | Linjun Xie Yuchao Chai Lanlan Sun Weili Dai Guangjun Wu Naijia Guan Landong Li | 2021 | Journal of Energy Chemistry2021，30，6： | 5 |
| 10 | Active/passive Q-switching operation of 2 μm Tm,Ho:YAP laser with an acousto-optical Q-switch/MoS_2 saturable absorber mirror显示文摘The active/passive Q-switching operation of a 2 μm a-cut Tm,Ho:YAP laser was experimentally demonstrated with an acousto-optical Q–switch∕MoS_2 saturable absorber mirror. The active Q-switch laser was operated for the first time, to the best of our knowledge, with an average output power of 12.3 W and a maximum pulse energy of 10.3 mJ. The passive Q-switch laser was also the first acquired with an average output power of 3.3 W and per pulse energy of 23.31 μJ, and the beam quality factors of M_x^2 = 1.06 and M_y^2 = 1.06 were measured at the average output power of 2 W. | LINJUN LI XINING YANG LONG ZHOU WENQIANG XIE YUNLONG WANG YINGJIE SHEN YUQIANG YANG WENLONG YANG WEI WANG ZHIWEI LV XIAOMING DUAN MINGHUA CHEN | 2018 | Photonics Research2018，6，6： | 5 |
| 11 | Brominated dioxins and furans in a cement kiln co-processing municipal solid waste显示文摘A field study and theoretical calculations were performed to clarify the levels, profiles, and distributions of polybrominated dibenzo-p-dioxins and dibenzofurans(PBDD/Fs) in a cement kiln co-processing solid waste, with a focus on the PBDF formation mechanism.The raw materials contributed greatly to input of PBDD/Fs into the cement kiln. The PBDD/F concentrations in the raw materials were much higher than those in particle samples from different process stages in the cement kiln. The PBDD/F concentrations in the clinkers were1.40% of the concentrations in the raw materials, which indicated that the high destruction efficiencies for PBDD/Fs by cement kiln. PBDD/F distribution patterns in particle samples collected from different process stages indicated the cement kiln backend was a major site for PBDD/F formation. PBDFs with high levels of halogenation, such as heptabrominated furans(Hp BDF), were the dominant contributors to the total PBDD/F concentrations and accounted for 42%–73% of the total PBDD/F concentrations in the particle samples. Our results showed that co-processing of municipal solid waste in a cement kiln may influence the congener profile of PBDD/Fs, especially for the higher halogenated PBDD fraction. In addition, there were significant correlations between the decabromodiphenyl ether and heptabrominated furan concentrations, which is an indicator of transformation from polybrominated diphenyl ethers to PBDD/Fs. Theoretical calculations were performed and demonstrated that elimination of HBr and Br_2 from polybrominated diphenyl ethers were the dominant formation pathways for PBDD/Fs. These pathways differed from that for polychlorinated dibenzo-p-dioxins and dibenzofurans(PCDD/Fs). | Lili Yang Yuyang Zhao Miwei Shi Minghui Zheng Yang Xu Cui Li Yuanping Yang Linjun Qin Guorui Liu | 2019 | Journal of Environmental Sciences2019，31，5： | 5 |
| 12 | Propane dehydrogenation catalyzed by in-situ partially reduced zinc cations confined in zeolites显示文摘Propane dehydrogenation(PDH), employing Pt-or Cr-based catalysts, represents an emerging industrial route for propylene production. Due to the scarcity of platinum and the toxicity of chromium, alternative PDH catalysts are being pursued. Herein, we report the construction of Zn-containing zeolite catalysts,namely Zn@S-1, for PDH reaction. Well-isolated zinc cations are successfully trapped and stabilized by the Si-OH groups in S-1 zeolites via in-situ hydrothermal synthesis. The as-prepared Zn@S-1 catalysts exhibit good dehydrogenation activity, high propylene selectivity, and regeneration capability in PDH reaction under employed conditions. The in-situ partial reduction of zinc species is observed and the partially reduced zinc cations are definitely identified as the active sites for PDH reaction. | Linjun Xie Rui Wang Yuchao Chai Xuefei Weng Naijia Guan Landong Li | 2021 | Journal of Energy Chemistry2021，30，12： | 4 |
| 13 | Investigation on condensable particulate matter emission characteristics in wet ammonia-based desulfurization system显示文摘Particulate matter emissions from ammonia-based wet flue gas desulfurization(AmmoniaWFGD)systems are composed of a filterable particulate matter and a condensable particulate matter(CPM)portion.However,the CPM part has been ignored for a long time,which results in an underestim ation of the aerosol problems caused by Ammonia-WFGD systems.In our research,the characteristics of the CPM that emits from an Ammonia-WFGD system are investigated experimentally for the first time,with the US Environmental Protection Agency Method 202 employed as the primary measurement.The influences of some essential desulfurizing parameters are evaluated based on the experimental data.The results show that CPM contributes about 68.8%to the total particulate matter emission.CPM consists mainly of ammonium sulfates/sulfites,with the organic part accounting for less than 4%.CPM is mostly in the submicron fraction,about 71.1%of which originates from the NH3-H2O-SO2 reactions.The appropriate adjustments for the parameters of the flue gas and the desulfurizing solution can inhibit CPM formation to different extents.This indicates that the parameter optimizations are promising in solving CPM emission problems in Ammonia-WFGD systems,in which the pH adjustment alone can abate CPM emission by around 49%.The opposite variations of the parameters need attention because they can cause tremendous CPM emission increase. | Rongting Huang Hao Wu Linjun Yang | 2020 | Journal of Environmental Sciences2020，32，6： | 4 |
| 14 | Study on the Genetic Susceptibility of HLA-DRB1 Alleles in Esophageal Neoplasm of Hubei Hans Chinese显示文摘 | LinJun DengChang-sheng SunJie ZhouYan XiongPing WangYa-ping | 2000 | 胃肠病学2000，5，B08： | 3 |
| 15 | Evaluation of probiotic yoghurt by the mixed culture with Lactobacillus plantarum A3显示文摘Lactic acid bacteria(LAB)fermentation is the simplest and safest way of food preservation,and the use of probiotics in yoghurt could provide dairy products with unique flavors,textures and health benefits.In this study,Lactobacillus bulgaricus,Streptococcus thermophilus,L.reuteri DSMZ 8533 and the potential probiotic strain L.plantarum A3 were used for the milk fermentation.Results found the texture properties such as hardness,consistency,and viscosity of the yoghurt were enhanced in the mixed culture condition.Furthermore,components like amino acid(leucine),vanilla(vanillin),C;(unsaturated fatty acids)were also accumulated in L.plantarum A3 fermented yoghut,which leads to the significant sensory profiling difference compared with the former plain yoghurt.All these results proved L.plantarum A3 is a potential probiotic stom winch could enhance the sensory and nutrition profiling of the fermented milk.Future work still needs to be done on the synergistic interaction between the traditional strains and the probiotics during the fermentation process. | Fengxuan Lang Jianzhu Wen Zhen Wu Daodong Pan Linjun Wang | 2022 | Food Science and Human Wellness2022，11，2： | 3 |
| 16 | Exosomes Released from Rabies Virus-Infected Cells May be Involved in the Infection Process显示文摘Exosomes are cell-derived vesicles that are secreted by many eukaryotic cells. It has recently attracted attention as vehicles of intercellular communication. Virus-infected cells release exosomes, which contain viral proteins, RNA, and pathogenic molecules. However, the role of exosomes in virus infection process remains unclear and needs to be further investigated.In this study, we aimed to evaluate the effects of exosomes on rabies virus infection. OptiPrep^(TM) density gradient centrifugation was used to isolate exosomes from rabies virus-infected cell culture supernatants. A rabies virus G protein enzyme-linked immunosorbent assay and acetylcholinesterase activity assays were performed to verify the centrifugation fractions. Exosomes were then characterized using transmission electron microscopy and Western blotting. Our results showed that rabies virus infection increased the release of exosomes. Treatment with GW4869 and si-Rab27 a, two exosomal secretion inhibitors, inhibited exosome release. Furthermore, the inhibitors reduced the levels of extracellular and intracellular viral RNA. These data indicated that exosomes may participate in the viral infection process. Moreover, our results establish a basis for future research into the roles of exosomes in rabies virus infection and as potential targets for developing new antiviral strategies. | Jingyu Wang Fan Wu Chuntian Liu Wenwen Dai Yawei Teng Weiheng Su Wei Kong Feng Gao Linjun Cai Ali Hou Chunlai Jiang | 2019 | Virologica Sinica2019，34，1： | 3 |
| 17 | Analysis and control on anomaly water inrush in roof of fully-mechanized mining field显示文摘从水流入的矿房顶的探穴由于异常压力是能在生产期间发生在矿的主要灾难和事故之一。房顶水流入能触发大量房顶倒塌,引起从打破房顶支持的主要事故当时探穴。这些失败充满井并且做很多损坏到矿并且危及矿安全。我们的目的到在工作的 #6301 压碎支持的水流入的异例在 Yanzhou 采矿组的 Jisan 煤矿面对的分析。通过到房顶的水流入的信息,损坏由构造运动引起了,损坏的信息在矿桥墩关于压力的分发由房顶倒塌和理论引起了,我们调整工作的脸的长度和打开离开的位置的忠告相对切了到富有的水区域。在异常房顶压力的情况中,我们应该开发一个州的方程估计有鈥渢r ansferring 的预防措施摇横梁鈥 ? 理论。同时,我们在宝库改进排水设备和保证的足够的水保留的能力。这些都是主要技术对异常的水流入在房顶引起的事故保证控制和预防,因此在一个煤矿的生产过程保证安全。 | Peng Linjun Yang Xiaojie Sun Xiaoming | 2011 | Mining Science and Technology2011，21，1： | 3 |
| 18 | CO2 capture over molecular basket sorbents:Effects of SiO2 supports and PEG additive显示文摘The objective of this work is to study the influences of silica supports and PEG additive on the sorption performance of molecular basket sorbent(MBS) for CO_2 capture consisting of polyethylenimine and one of the following supports: SBA-15(2-D structure), TUD-1(3-D sponge-like structure) and fumed silica HS-5(3-D disordered structure). Effects of the supports regarding pore structures and pore properties, the PEI loading amount as well as the sorption temperature were examined. Furthermore, polyethylene glycol(PEG) was introduced as an additive into the sorbents and its effect was investigated at different PEI loadings and sorption temperatures. The results suggest that the pore properties of MBS(after PEI loading) play a more important role in the CO_2 sorption capacity, rather than those of the supports alone.MBS with 3D pore structure exhibits higher CO_2 sorption capacity and amine efficiency than those with 2D-structured support. Among the sorbents studied, fumed silica(HS-5) based MBS showed the highest CO_2 sorption capacity in the temperature range of 30-95 °C, probably due to its unique interstitial pores formed by the aggregation of polymer-loaded SiO_2 particles. It was found that the temperature dependence is directly related to the PEI surface coverage layers. The more PEI surface coverage layers, the higher diffusion barrier for CO_2 and the stronger temperature dependence of CO_2 capacity. 3D MBS exceeds 2D MBS at the same PEI coverage layers due to lower diffusion barrier. Adding PEG can significantly enhance the CO_2 sorption capacity and improve amine efficiency of all MBS, most likely by alleviating the diffusion barrier within PEI bulk layers through the inter-molecular interaction between PEI and PEG. | Lin Zhang Xiaoxing Wang Mamoru Fujii Linjun Yang Chunshan Song | 2017 | Journal of Energy Chemistry2017，26，5： | 3 |
| 19 | The Role of Diesel Soot in the Tribological Behavior of 150SN Base Oil显示文摘The diesel soot was collected from diesel engine exhaust pipe. The morphology and structure of the collected diesel soot was characterized by HRTEM, XRD and XPS and its tribological behavior was investigated by a SRV IV oscillating reciprocating friction and wear tester. Test results showed that the tribological behavior of diesel soot was largely influenced by the test load. Under a low load, the diesel soot could reduce the wear volume of the disc. While under a high load, the diesel soot could reduce the friction coefficient of base oil. Based on the characterization of the worn scars by the SEM technique, the 3D surface profiler and the Raman spectroscopy, it was assumed that the core-shell structure of diesel soot with several graphitic layers played important roles. On one hand, its spherical and special structure could make it roll between friction pairs to reduce wear under a low load. On the other hand, its outer-shell graphite layers could be peeled off to form lubrication film to reduce friction under a high load and shear force. | Su Peng Xiong Yun Liu Xiao Yang He Fan Linjun Liu Ping | 2017 | China Petroleum Processing & Petrochemical Technology2017，19，2： | 2 |
| 20 | Molecular dynamics simulation of chip formation mechanism in single-crystal nickel nanomachining显示文摘Nanometric machining simulations of single-crystal nickel were performed using molecular dynamics.The atomic displacement vector method was applied to study the relationship between defect displacement vectors and the crystal slip system during different deformation stages as well as the displacement trend characteristics of workpiece atoms under different deformations.The arrangement characteristics of atoms in the machining region,relative density of atoms at different machining zones,and proportion of different atoms were investigated in detail.In addition,the atom shunt phenomenon was observed by studying the displacement trend of the atoms adjacent to the machining tool,and a method for determining the location of the shunt point was determined.Moreover,direct evidence of crystal transition caused by temperature was obtained.The effects of machining depth on workpiece damage,surface flatness,and workpiece temperature were investigated.With increasing machining depth,the chip gradually changed from spherical to strip-shaped,the damage depth of workpiece gradually increased,but the atomic arrangement of the machined surface became neater.Simultaneously,the dislocation reaction of subsurface defects was studied,and the rationality of the reaction was analyzed using an energy criterion.Furthermore,the overall temperature of the workpiece increased,but the temperature of the chip part gradually decreased. | ZHU ZongXiao PENG Bin FENG RuiCheng WANG LinJun JIAO Shi DONG Yun | 2019 | Science China(Technological Sciences)2019，62，11： | 2 |
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