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| 1 | Modification on the tribological properties of ceramics lubricated by water using fullerenol as a lubricating additive显示文摘It is necessary to modify the running-in process for the application of ceramics using water as a lubricant in real conditions because ceramics sliding in water are characterized by a running-in period with severe friction and wear.Fullerenol,a kind of highly water-soluble nanoparticle,was synthesized and then used to ameliorate the tribological properties of Si 3 N 4 sliding against Al 2 O 3 in pure water.With the addition of fullerenol,the running-in period was shortened from 30 min to 100 s at a speed of 250 mm/s.The speed threshold above which ultralow friction can be obtained in a short time was expanded from 450 mm/s to 80 mm/s.Meanwhile,the load-carrying ability of water film was increased.The role of fullerenol was discussed based on observation of the wear scar by an optical interferometer and XPS characterization of the tribo-film on the wear track. | LIU YuHong WANG XiaoKang LIU PengXiao ZHENG JunPeng SHU ChunYing PAN GuoShun LUO JianBin | 2012 | Science China(Technological Sciences)2012,55,9: | 9 |
| 2 | Triglycerides and ratio of triglycerides to high-density lipoprotein cholesterol are better than liver enzymes to identify insulin resistance in urban middle-aged and older non-obese Chinese without diabetes显示文摘 | Sun Yu Li Wenjuan Hou Xinguo Wang Chuan Li Chengqiao Zhang Xiuping Yang Weifang Ma Zeqiang Wang Weiqing Ning Guang Zheng Huizhen Ma Aixia Song Jun Lin Peng Liang Kai Liu Fuqiang Gong Lei Wang Meijian Xiao Juan Yan Fei Yang Junpeng Wang Lingshu Tian Meng Liu Jidong Zhao Ruxing Zhu Ping Chen Li | 2014 | Chinese Medical Journal2014,,10: | 7 |
| 3 | Composition-dependent ultra-high photoconductivity in ternary CdSxSe1-x nanobelts as measured by optical pump-terahertz probe spectroscopy显示文摘我们采用光泵兆兆赫探查光谱学在第三的 CdS x Se1x nanobelts 调查作文依赖者光导增益。CdS nanobelts 的观察搬运人动力学第三的 CdS x Se1x nanobelts 比那些显示许多更短的一生。这作为潜在地以切换的速度交换设备直到 46.7 GHz 的 ultrafast 显示 CdS nanobelts 的实现。令人惊讶地,第三的 CdS x Se1x nanobelts 被发现比二进制 CdS 和 CdSe 展出高得多的光导增益。这在第三的混合物被归因于更高的 photocarrier 密度。另外,在样品的 Se 的存在导致了突出的象 CdSe 一样横向光(到) 声子模式由于电子声子相互作用。这个模式的力量在 photoexcitation 之上显示出大落下,但是与时间逐渐地恢复。这些结果证明第三的 nanostructures 的生长能被利用在 nanostructures 减轻高表面缺点密度并且改进他们的光导增益。 | Hongwei Liu Junpeng Lu Minrui Zheng Sing Hai Tang Xinhai Zhang Chorng Haur Sow | 2013 | Nano Research2013,6,11: | 3 |
| 4 | In vitro expansion of human sperm through nuclear transfer显示文摘Dear Editor,Mammalian haploid embryonic stem cells(haESCs)represent an ideal tool for genetic analysis due to the presence of only one set of genetic materials.HaESCs fall into two readily distinguishable groups based on their genome origins:parthenogenetic haESCs(PG-haESCs)that are derived from oocyte-originated parthenogenetic embryos and androgenetic haESCs(AG-haESCs)that are produced through sperm nuclear transfer.Both PG-and AGhaESCs are feasible for delineating genome function at cellular level in vitro.Importantly,AG-haESCs can be used as a sperm replacement and applied to deciphering gene function at organismal level when combined with CRISPR-Cas9 technology.1 However,while PG-haESCs have been generated from both rodent and primates,2-5 AG-haESCs can only be obtained in rodent to date. | Xiaoyu Merlin Zhang Keliang Wu Yuxuan Zheng Han Zhao Junpeng Gao Zhenzhen Hou Meiling Zhang Jiaoyang Liao Jingye Zhang Yuan Gao Yuanyuan Li Lin Li Fuchou Tang Zi-Jiang Chen Jinsong Li | 2020 | Cell Research2020,30,4: | 3 |
| 5 | A New Type of Rare Metal Deposit:The Yushishan Leptynite-Type Nb-Ta Deposit in Eastern Altun,Gansu Province,NW China显示文摘The Yusishan deposit is a newly found leptynite-type niobium and tantalum(Nb-Ta)deposit,which is located in the Eastern Altun of Gansu Province.The leptynite of the Neoproterozoic Aoyougou Formation occurs more than 10 km long and 3 km wide.In this paper,we carried out a detailed study of the leptynite and related mineralization.The U-Pb dating of zircon reveals ages of 831±5 Ma and 790±5 Ma for the unmineralized leptynite and 491±4 Ma and 455±4 Ma for the mineralized leptynite.The petrographic and geochemical evidence identified the protolith of the leptynite as alkalin e volcanic rocks that erupted during Neoproterozoic at ca.830 Ma.At ca.490 Ma,the tectono-magmatic and metamorphic event triggered remobilization and enrichment of Nb-Ta as well as other critical metals(REE,Zr,Hf etc)with the formation of industry orebodies in the leptynite strata.The Yushishan deposit presents many similarities with the alkaline volcanic rocks related rare metal deposits in the south Qinling of China and the Brochman,Toogni and Southern Peak Range deposits in Australian.We therefore propose that the Yushishan deposit is a new type(sub-type)of Nb-Ta deposit and termed as leptynite type that represents the metamorphic counterpart of the alkaline volcanic rocks related rare metal deposits. | JIANG SHAOYONG LIU TAO ZHANG HAOXIANG CAO SHUYUN ZHENG RUOHONG LI TONGGUO YU JUNPENG WU YIBU | 2022 | Acta Geologica Sinica(English Edition)2022,96,5: | 2 |
| 6 | Reappraise role of lymph node status in patterns of recurrence following curative resection of gastric adenocarcinoma显示文摘Objective: To examine the association between lymph node status and recurrence patterns in completely resected gastric adenocarcinoma.Methods: We retrospectively assessed 1,694 patients who underwent curative gastrectomy from January 2010 to August 2014. Patients stratified according to lymph node status and recurrence patterns among different subgroups were compared.Results: Of all, 517(30.5%) patients developed recurrent disease, and complete data of recurrence could be obtained in 493(95.4%) patients. For p^(N0) patients, the patterns of recurrence were different according to p T stage: locoregional recurrence was most common in patients with p T1-2 disease(57.1%), distant recurrence was most common in patients with p T3 disease(57.1%), and peritoneal recurrence was most common in patients with p T4 a disease(66.7%). For p^(N+) patients, distant metastasis was most common pattern irrespective of p T stage. The site-specific trend of recurrence showed that locoregional recurrence increased within 5 years in patients with p^(N0)-2 disease but plateaued 3 years after surgery in patients with p N3 disease. Time to recurrence was significantly longer for the p^(N0) patients compared with the p^(N+) patients(median: 25 vs. 16 months, P=0.001).Moreover, post-recurrence survival was significantly better for the p^(N0) patients than for the p^(N+) patients(median:12 vs. 6 months, P<0.001), especially in patients with non-peritoneal recurrence, late recurrence, single recurrence,and receipt of potential curative treatment.Conclusions: Among clinicopathologic factors, lymph node status is the most important factor associated with recurrence patterns after curative gastrectomy. Lymph node status may be used as an adjunct in clinical decisionmaking about postoperative therapeutic and follow-up strategies. | Yihui Tang Jianxian Lin Junpeng Lin Jiabin Wang Jun Lu Qiyue Chen Longlong Caolj Mi Lin Ruhong Tu Changming Huang Ping Li Chaohui Zheng Jianwei Xie | 2021 | Chinese Journal of Cancer Research2021,33,3: | 1 |
| 7 | SPAG9 expression is increased in human prostate cancer and promotescell motility, invasion and angiogenesis in vitro显示文摘 | Feifei Chen Zheng Lu Junpeng Deng Xuechao Han Jin Bai Qinghua Liu Yaguang Xi Junnian Zheng | 2014 | Oncology Reports2014,,6: | 1 |
| 8 | Simulation of embedded heat exchangers of solar aided ground source heat pump system显示文摘 | Wang Fang Zheng Maoyu Shao Junpeng | | 0,,: | 1 |
| 9 | Cr^(3+)/Y^(3+)co-doped persistent luminescence nanoparticles with biological window activation for in vivo repeatable imaging显示文摘The near-infrared(NIR)persistent luminescence materials(PLMs)can remain long-lasting luminescence after removal of the excitation light,which permits bioimaging with high sensitivity owing to the absence of background fluorescence interference from in situ excitation.Recently,the NIR PLMs have aroused intensive research interest in bioimaging.However,the optimal excitation wavelength of current NIR PLMs is located in the ultraviolet region with shallow tissue penetration,making it difficult to activate effectively in vivo,and seriously hindering their further application in bioimaging.Herein,we report a novel kind of Cr^(3+)ions and Y^(3+)ions co-doped NIR PLM,Zn_(1.3)Ga_(1.4)Sn_(0.3)O_(4):Cr^(3+),Y^(3+)(ZGSCY),which emits NIR persistent luminescence at 696 nm.Compared with Zn_(1.3)Ga_(1.4)Sn_(0.3)O_(4):Cr^(3+)(ZGSC)excited by the light with a wavelength in the biological window(>650 nm),after being co-doped with Y^(3+)ions,the NIR persistent luminescence performance of ZGSCY is significantly improved because of the increase of trap concentration in the matrix.In addition,we synthesized ZGSCY nanoparticles(NPs)by the combustion method,which exhibit excellent optical properties after being excited by the light with a wavelength in the biological window.After surface modification with PEG,the ZGSCY NPs present low cytotoxicity.Notably,due to the co-doping of Y^(3+)ions,the signal-to-noise ratio(SNR)of ZGSCY NPs in vivo imaging is about 1.8 times higher than that of the ZGSC NPs.Furthermore,the rechargeable in vivo imaging and passive tumor-targeted imaging are successfully achieved by activating with a lightemitting diode(LED,659 nm)after intravenous injection of ZGSCY.Thus,this kind of NIR PLM with high excitation efficiency performance in the biological window is expected to promote its biomedical application in deep tissues. | Huimin Jiang Lin Liu Kexin Yu Xianggui Yin Shenghui Zheng Liang Song Junpeng Shi Yun Zhang | 2022 | Journal of Rare Earths2022,40,9: | 1 |
| 10 | A novel Gd-based phosphor NaGdGeO_(4):Bi^(3+),Li^(+)with super-long ultraviolet-A persistent luminescence显示文摘In very recent years,ultraviolet(UV)persistent luminescent materials(PLMs)have attracted widespread attention due to their potential biological applications.However,owing to the lack of suitable emitters and hosts,the design and development of excellent UV PLMs remain challenging.Here,we report a new Gd-based PLM NaGdGeO_(4):Bi^(3+)with super-long UVA persistent luminescence(PersL).By further codoping Li^(+)ions to increase the concentration of traps,the UVA PersL intensity of NaGdGeO_(4):Bi^(3+)is increased by 5.5 times.The optimal NaGdGeO_(4):Bi^(3+),Li^(+)exhibits excellent UVA PersL and can persist for more than 200 h.Moreover,the phosphor NaGdGeO_(4):Bi^(3+),Li^(+)also exhibits photostimulated property with a red LED or NIR laser excitation after the long-term decay,and can be activated by X-ray.This promising Gd-based UVA PLM is expected to have potential applications in biomedicine through triggering photocatalysts or photosensitizers by its UVA PersL to achieve photodynamic therapy and its potential ability of magnetic resonance(MR)imaging due to Gd^(3+)ions as MR imaging probe contained in the host NaGdGeO_(4). | Lin Liu Kexin Yu Liyan Ming Yangyang Sheng Shenghui Zheng Liang Song Junpeng Shi Yun Zhang | 2022 | Journal of Rare Earths2022,40,9: | 1 |
| 11 | High-performance triboelectric nanogenerator based on theoretical analysis and ferroelectric nanocomposites and its high-voltage applications显示文摘With the growing economy and technology,disease prevention and individual health are becoming more and more important.It is highly urgent to develop a non-toxic,self-powered,and safe high-voltage power source to prevent diseases spread by mosquitoes,especially in isolated or remote areas.Herein,we reported a high-performance rotary triboelectric nanogenerator(R-TENG)based on customized theoretical simulations and a ferroelectric nanocomposite intermediate layer.The customized theoretical simulations based on gradient electrode gaps were established to optimize gap angles and segment numbers of the electrodes,which could prevent air breakdown and enhance the R-TENG output energy by at least 1.5 times.Meanwhile,the electrical output performance of the TENG was further enhanced with a highly oriented BaTiO3(BTO)nanoparticles intermediate layer by about 2.5 times.The open-circuit voltage of R-TENG reached more than 6 kV and could continuously light 3420 light-emitting devices(LEDs)or 4 serially connected 36 W household fluorescent lamps.Therefore,a self-powered high-voltage disease prevention system is developed based on the high-performance R-TENG to reduce the risk of disease transmission.This work provides a prospective strategy for the further development of TENGs and expands practical applications of self-powered and high-voltage systems. | Xuhua Guo Jianwei He Yang Zheng Junpeng Wu Caofeng Pan Yunlong Zi Hongzhi Cui Xiaoyi Li | 2023 | Nano Research Energy2023,2,3: | 1 |
| 12 | Scientometric analysis of physics (1979-2008):A quantitative description of scientific impact显示文摘Citations are a way to show how researchers build on existing research to further evolve research.The citation count is an indication of the influence of specific articles.The importance of citations means that it is valuable to analyze the articles that are cited the most.This research investigates highly-cited articles in physics (1979-2008) using citation data from the ISI Web of Science.In this study,1544205 articles were examined.The objective of the analysis was to identify and list the highly-productive countries,institutions,authors,and fields in physics.Based on the analysis,it was found that the USA is the world leader in physics,and Japan has maintained the highest growth rate in physics research since 1990.Furthermore,the research focus at Bell Labs and IBM has played important roles in physics.A striking fact is that the five most active authors are all Japanese,but the five most active institutions are all in the USA.In fact,only The University of Tokyo is ranked among the top 11 institutions,and only American authors have single-author articles ranked among the top 19 articles.The highest-impact articles are distributed across 25 subjects categories.Physics,Multidisciplinary has 424 articles,and is ranked at No.1 in total articles;followed by Physics,Condensed Matter.The study can provide science policy makers with a picture of innovation capability in this field and help them make better decisions.Hopefully,this study will stimulate useful discussion among scientists and research managers about future research directions. | ZHENG YanNing YUAN JunPeng PAN YunTao ZHAO XiaoYuan | 2011 | Science China(Physics,Mechanics & Astronomy)2011,54,1: | 0 |
| 13 | Influence of calendering process on the structural mechanics and heat transfer characteristics of lithium-ion battery electrodes via DEM simulations显示文摘Elucidating the intricate correlation between calendering,structure,and performance is crucial to comprehending the relationship between performance parameters and process steps of lithium-ion batteries(LIBs).Discrete element method(DEM)simulations were adopted in this work to calculate the interparticle force and stress tensor under incremental calendering process conditions,which revealed the effect of the anisotropy of complex contact force network on the anisotropy of heat transfer within porous electrode.The thermal conductivity of electrode was predicted using porosity to characterize the process-structure-performance correlation.The comprehensive influence of contact number and con-tact area between particles and current collector determines the magnitude of interfacial thermal resistance and interfacial heat transfer coefficient.For the first time,this work quantitatively analyzed the structural mechanics and heat transfer mechanism during calendering process of porous electrodes,and the results indicate a promising way to optimize and design battery electrode structures. | Junpeng Zhang Jingna Sun Huagui Huang Zhenge Yuan | 2024 | Particuology2024,85,2: | 0 |
| 14 | X-ray excited Mn^(2+)-doped persistent luminescence materials with biological window emission for in vivo bioimaging显示文摘In recent years,persistent luminescence materials(PLMs)excited by X-rays and emitting in biological windows have received extensive attention in the field of high-sensitivity bioimaging.Transition metal Mn^(2+)is an ideal emission center,but few studies focus on Mn^(2+)-doped PLMs with X-ray excitation and biological window emission.Here,we report a Mn^(2+)-doped PLM,LiYGeO_(4):Mn^(2+)(LYGM),with excellent biological window persistent luminescence emission.After excitation by UV,LYGM produces a durable biological window of persistent luminescence emission at 660 nm for up to 20 h.More importantly.LYGM can be repeatedly excited by X-rays,resulting in long-term biological window persistent luminescence emission.In addition,we obtain LYGM around 200 nm in diameter by ball milling and centrifugation and improve its biocompatibility by surface modification to apply it to in vivo imaging in mice.After LYGM are injected into mice through the tail vein,in situ excitation of X-rays can be achieved.After the persistent luminescence decays,LYGM can be re-excited for repeated imaging.Therefore,LYGM shows potential prospects for in vivo deep tissue and long-term bioimaging. | Hanrun Zheng Lin Liu Yi’ang Li Rui Rong Liang Song Junpeng Shi Jing Teng Xia Sun Yun Zhang | 2024 | Journal of Rare Earths2024,42,1: | 0 |
| 15 | A novel strategy for high-specificity, high-sensitivity, and high-throughput study for gut microbiome metabolism of aromatic carboxylic acids显示文摘Aromatic carboxylic acids(ACAs) may be as transformed key metabolites via gut microbiome for playing better pharmacological effects. However, it's rare to achieve high-specificity, high-sensitivity, and highthroughput detection simultaneously, especially, for tracing trace ACAs in gut microbiome. In this work,firstly, a novel dual-template and double-shelled molecularly imprinted 96-well microplates(DDMIPs)was designed and amplified signal for p-hydroxybenzoic acid(PBA) and 3,4,5-trimethoxycinnamic acid(TMA). Additionally, the DDMIPs and a stable isotope labeling derivatization(SILD) method combined with the ultra-high performance liquid chromatography triple quadrupole tandem mass spectrometry(UHPLC-TQ MS) was firstly stepwise integrated, achieving high-effective, high-sensitive, and highthroughput study of gut microbiome metabolism. The whole strategy showed lower limits of detections(LODs) up to 1000 folds than the traditional method, and revealed a more real metabolism-time profile of PBA and TMA by 3-step signal amplification. The platform also laid the foundation for fast, simple,high-selective, high-effective, and high-throughput metabolism and pharmacological research. | Ningning Zhao Zhiqiang Liu Junpeng Xing Zhong Zheng Fengrui Song Shu Liu | 2022 | Chinese Chemical Letters2022,33,6: | 0 |
| 16 | A highly effective incubation strategy enhanced the urban bird hatch success显示文摘Urbanization is currently considered one of the most rapid types of global environmental change.Urban habitats are biotically and abiotically different from their rural areas,i.e.,the ambient temperature,predator,and food availability.These novel challenges create new selection pressures,which allow one to investigate ecoevolutionary responses to contemporary environmental change.A total of 118 breeding nests were monitored for nest predation in both urban and rural areas from 2018 to 2020.We used environmental factors from urban and rural areas and behavioral data from 439 Chinese Blackbird(Turdus mandarinus)valid incubation days to understand the impact of urbanization on the incubation behavior of blackbirds and its adaptation mechanism to the urban environment.Cities have warmer ambient temperatures and lower predation pressures than rural areas.Urban blackbirds chose the incubation strategy with shorter and more bouts,while rural blackbirds selected the incubation strategy with longer and fewer bouts.The plasticity of incubation behavior of urban blackbirds was higher than that of rural areas,and the range of egg temperature was also higher than that of rural areas.In addition,incubation temperature and the number of bouts per day were the key factors affecting the day survival rate of blackbirds,and the hatching rate of urban blackbirds was higher than that of rural blackbirds.Our results provide evidence for behavioral shifts in blackbirds during adaptation to urbanization and support the central role of behavioral adaptation in the successful colonization of new environments by wildlife.These help us understand the behavioral characteristics required for wildlife to live in cities and the urban adaptors faced environmental pressures. | Long Ma Yuancheng Liu Wenjing Lu Zheng Zhang Wanyou Li Ziwei Zhang Xueli Zhang Chaoying Zhu Junpeng Bai Zhifeng Xu Yuqing Han Luzhang Ruan | 2023 | Avian Research2023,14,1: | 0 |