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| 1 | Cold-chain food contamination as the possible origin of COVID-19 resurgence in Beijing显示文摘COVID-19,caused by SARS-CoV-2[1,2],has been contained in China through stringent non-pharmaceutical interventions.Border control and quarantine have effectively prevented the virus from being spread by infected travellers,but the risk of resurgence caused by other routes of introduction and transmission remains unclear,and current strategies to prevent resurgence could be flawed.Since July,SARS-CoV-2 RNA contaminations in frozen food imported from countries with ongoing epidemics have been reported in nine provinces in China[3,4].However,there is no robust evidence of COVID-19 outbreaks initiated by environmentto-human transmission.Here we add to evidence of such transmission by investigating the recent COVID-19 resurgence in Beijing. | Xinghuo Pang Lili Ren Shuangsheng Wu Wentai Ma Jian Yang Lin Di Jie Li Yan Xiao Lu Kang Shichang Du Jing Du Jing Wang Gang Li Shuguang Zhai Lijuan Chen Wenxiong Zhou Shengjie Lai Lei Gao Yang Pan Quanyi Wang Mingkun Li Jianbin Wang Yanyi Huang Jianwei Wang COVID-19 Field Response Group COVID-19 Laboratory Testing Group | 2020 | National Science Review2020，7，12： | 51 |
| 2 | Microstructure,mechanical and corrosion properties of Mg-2Dy-xZn(x=0,0.1,0.5 and 1 at.%)alloys显示文摘Microstructure,mechanical and corrosion properties of as-cast Mg-2Dy-xZn(x=0,0.1,0.5,and 1)(at.%)alloys were investigated.The microstructures of the as-cast Mg-2Dy and Mg-2Dy-0.1Zn alloys mainly consisted ofα-Mg phase and Mg_(24)Dy_(5)eutectic phase.With 0.5 at.%Zn addition,Mg_(12)ZnDy phase with 18R-type long period stacking ordered(LPSO)structure and Mg_(2)Dy phase precipitated at the grain boundaries.When the content of Zn is 1 at.%,only the Mg_(3)Zn_(3)Dy_(2)phase formed in theα-Mg matrix.The electrochemical measurements and immersion testing results indicated that the Mg-2Dy-0.1Zn alloy exhibited the best corrosion resistance.It revealed that the morphology,scale,amount and distribution of the second phase have a great effect on the corrosion resistance of alloy.Additionally,the tensile testing results showed that the Mg-2Dy-0.5Zn alloy exhibited the higher tensile strength and good elongation,especially at 200℃.The improvement of mechanical properties was mainly due to the strengthening of LPSO phase and grain refinement of α-Mg. | Guangli Bi Yuandong Li Shijun Zang Jianbin Zhang Ying Ma Yuan Hao | 2014 | Journal of Magnesium and Alloys2014，2，1： | 13 |
| 3 | Hydrodynamic effect on the superlubricity of phosphoric acid between ceramic and sapphire显示文摘In this work,a super-low friction coefficient of 0.003 was found between a silicon nitride ball and a sapphire plate lubricated by phosphoric acid solution.The wear mainly occurred in the running-in period and disappeared after superlubricity was achieved.The friction coefficient was effectively reduced from 0.3 to 0.003 at a constant speed of 0.076 m/s,accompanied by a 12-nm-thickness film.The lubrication regime was indicated to change from boundary lubrication in the running-in period to elastohydrodynamic lubrication in the superlubricity period,which is also supported by the results of the friction coefficient versus sliding speed.In addition,the experimental results showed good agreement with theoretical calculations based on the elastohydrodynamic lubrication theory,suggesting a significant hydrodynamic effect of phosphoric acid on superlubricity. | Mingming DENG Chenhui ZHANG Jinjin LI Liran MA Jianbin LUO | 2014 | Friction2014，2，2： | 11 |
| 4 | Molecular behaviors in thin film lubrication——Part one: Film formation for different polarities of molecules显示文摘There are three unsolved problems in thin film lubrication(TFL) since it was proposed 20 years ago, i.e., the determination of the type of molecules that can enter the contact region efficiently during sliding, the orientation of molecules in the contact region, and the effect of solid surfaces on the liquid molecular orientation in TFL. In order to answer the first two questions, an in situ measurement system comprising a self-designed Raman microscopy and relative optical interference intensity(ROⅡ) system was set up to study the molecular behaviors. A variety of binary mixtures were used as lubricants in the test, and the concentration distribution profile and orientation of the additive molecules in TFL were characterized. The molecular behavior was determined via a combination of shearing, confinement, and surface adsorption. Furthermore, the difference in molecular polarity resulted in different competing effect of surface adsorption and intermolecular interaction, the influence of which on molecular behavior was discussed. Polar additive molecules interacted with the steel surface and exhibited an enrichment effect in the Hertz contact region when added into a nonpolar base oil. No enrichment effect was observed for nonpolar molecules that were added into the nonpolar base oil and polar molecules added into polar base oil. The enrichment of additive molecules enhanced the film-forming ability of the lubricant and resulted in a reduction in the friction coefficient of up to 61%. The orderly arrangement of the additive molecules was another reason for the friction-reducing. A binary multilayer model was proposed to illuminate the molecular behavior in the TFL, and the model was supported by contrary experiment results in elastohydrodynamic lubrication. This research may aid in understanding the nanoscale lubrication mechanism in TFL and the development of novel liquid lubricants. | Shaohua ZHANG Yijun QIAO Yuhong LIU Liran MA Jianbin LUO | 2019 | Friction2019，7，4： | 10 |
| 5 | Isolation and identification of the thermophilic alkaline desulphuricant strain显示文摘A desulfurization strain that belongs to the thermophilic alkaline desulphuricant is designated as strain GDJ-3 and isolated from Inner Mongolia, China. The colony of the strain shows tiny, yellow, or white-yellow, and it becomes henna with the protracting of cultivated time. The cells are bacilliform (0.3 -0.6 × 1.0-1.2 μm), motive, and Gram negative. The strain GDJ-3 is able to utilize respectively the thiosulphate, sulfate, sulfite, or sulfide as sulfur source, utilize the carbon dioxide as the carbon source, and utilize the ammonium or nitrate as the nitrogen source. According to GenBank data, 16s RNA results of GDJ-3 are in good agreement with Alpha proteobacterrium sp. (97%) and Ochrobactrum sp. (98%). For GDJ-3, the optimum growth temperature is at 45℃, the optimum pH is at 8.5-8.8, and the optimum rocking speed of sorting table is at 150 r/min. Under the optimum culture condition, the cells of the strain can live for about 18 h. In the desulfurization solution, which is prepared according to the composition of DDS solution, the objectionable constituents of sodium thiosulphate and sodium sulfide were added factitiously, and the bacterial cell concentration was set at 107/mL. After the regeneration of the above desulfurization solution by the strain cells, the concentration of sodium thiosulphate was decreased by 14.75 g/L (percentage loss of content 13.21%), the concentration of sodium sulfide was decreased by 0.76 g/L (percentage loss of content 87.36%) in the desulfurization solution in 9.5 hours, and sulfur appeared. Maybe, this kind of strain can be used as the regeneration's bacterial source of DDS solution. | ZHANG JianBin ZHANG Tong MA Kai CHEN GuoHua ZHANG DongYan WEI XiongHui | 2008 | Science China Chemistry2008，51，2： | 9 |
| 6 | Variations in stem radii of Larix principis-rupprechtii to environmental factors at two slope locations in the Liupan Mountains,northwest China显示文摘Relationships between stem growth and climatic and edaphic factors,notably air temperatures and soil moisture for different slopes,are not completely understood.Stem radial variations were monitored at the bottom and top slope positions in a Larix principis-rupprechtii plantation during the 2017 and 2018 growing seasons.Total precipitation during the growing season in 2017 and 2018 was 566 mm and 728 mm,respectively.Stem contractions typically occurred after mid-morning followed by swelling in the late afternoon in both plots,reflecting the diurnal cycle of water uptake and loss.Trees at the two locations showed the same growth initiation(mid-May)because of the small differences in air and soil temperatures.There were no significant differences in cumulative stem radial growth between the bottom plot(1.57±0.34 mm)and the top plot(1.55±0.26 mm)in 2018.However,in 2017,the main growth period of the bottom plot ceased 17 days earlier than in the top plot,while cumulative seasonal growth of the bottom plot(1.08±0.25 mm)was significantly less than the top plot(1.54±0.43 mm).Maximum daily stem shrinkage was positively correlated with air and soil temperatures,solar radiation,vapor pressure deficits,and negatively correlated with volumetric soil moisture content.The maximum daily shrinkage reflected transpiration rates as affected by environmental factors.Daily radial stem increment was correlated with precipitation and volumetric soil moisture in both years,but with air temperatures only in 2017.The seasonal growth of L.principis-rupprechtii Mayr thus shows interannual dynamics,while precipitation constitutes a key driving factor. | Jing Ma Jianbin Guo Yanhui Wang Zebin Liu Di Gao Liu Hong Ziyou Zhang | 2021 | Journal of Forestry Research2021，32，2： | 6 |
| 7 | Design and fabrication of a SiN-Si dua卜layer optical phased array chip显示文摘A SiN-Si dual-layer optical phased array(OPA)chip is designed and fabricated.It combines the low loss of SiN with the excellent modulation performance of Si,which improves the performance of Si single-layer OPA.A novel optical antenna and an improved phase modulation method are also proposed,and a two dimensional scanning range of 96°×14°is achieved,which makes the OPA chip more practical. | PENGFEI WANG GUANGZHEN LUO YANG XU YAJIE LI YANMEI SU JIANBIN MA RUITING WANG ZHENGXIA YANG XULIANG ZHOU YEJIN ZHANG JIAOQING PAN | 2020 | Photonics Research2020，8，6： | 5 |
| 8 | Molecular behaviors in thin film lubrication——Part two: Direct observation of the molecular orientation near the solid surface显示文摘Over the past twenty years, thin film lubrication(TFL) theory has been used to characterize the molecular behaviors in lubrication films thinner than 100 nm, effectively bridging the gap between elastohydrodynamic lubrication and boundary lubrication. Unfortunately, to date, the TFL molecular model proposed in 1996 has not been directly proven by experimental detection. Herein, a method based on surface-enhanced Raman spectroscopy was developed to show both the packing and orienting of liquid molecules in the TFL regime. By trapping liquid crystal molecules between a structured silver surface and a glass surface, molecular ordering states dominated by shear effect and surface effect were successfully distinguished. A nanosandwich structure consisting of an adsorbed layer, an ordered-molecule layer, and a fluid layer was demonstrated. Molecule imaging in TFL was achieved. Our results illustrate the molecular behaviors and lubrication mechanism in nanoconfined films and facilitate the lubrication design of nanoelectromechanical and microelectromechanical systems. | Ming GAO Haoyu LI Liran MA Yuan GAO Linwei MA Jianbin LUO | 2019 | Friction2019，7，5： | 5 |
| 9 | Study of lubrication behavior of pure water for hydrophobic friction pair显示文摘The perfluorooctyltrichlorosilane molecular layer was self-assembled on glass plate. The tribological properties of the molecular layer in water were studied with the method of ball on disk. An interesting phenomenon was found that low friction coefficients of 0.02―0.08 were obtained when the friction pair was lubricated with only a water droplet. Whereas, when the friction pair was encircled with large amount of water or fully immersed in water, the friction coefficient was higher than that under a droplet lubrication. A mechanism of water droplet lubrication was proposed that the surface tension caused by the solid-liquid-air three-phase interface makes water molecules enter into the contact zone, which separates the two friction surfaces and provides a low friction coefficient. However, water film can hardly form when more water encircles the friction pair, due to the attraction between water molecules. | MA ZhiZuo ZHANG ChenHui LIU ShuHai LUO JianBin LU XinChun WEN ShiZhu | 2009 | Science China(Technological Sciences)2009，52，11： | 4 |
| 10 | Advances in thin film lubrication(TFL): From discovery to the aroused further researches显示文摘Thin film lubrication(TFL) is known as a mode of fluid-film lubrication regime bridging the gap between elastohydrodynamic lubrication(EHL) and boundary lubrication(BL). Since the first recorded literature published in 1995, TFL has become one of the landmarks in the development of lubrication theory over the last twenty years. This article presents an overview of the advances in the research of TFL regime. We first begin with a brief introduction of the discovery of the phenomenon, followed by the discussion of the relevant essential aspects, such as the performing approach, theory and physical model. The state-of-the-art studies on both the theoretical and experimental fields are also presented, also latter with emphasis on the review of researches in several promising applications. | MA LiRan LUO JianBin | 2015 | Science China(Technological Sciences)2015，58，10： | 4 |
| 11 | Copy number alteration profiling facilitates differential diagnosis between ossifying fibroma and fibrous dysplasia of the jaws显示文摘Ossifying fibroma(OF)and fibrous dysplasia(FD)are two fibro-osseous lesions with overlapping clinicopathological features,making diagnosis challenging.In this study,we applied a whole-genome shallow sequencing approach to facilitate differential diagnosis via precise profiling of copy number alterations(CNAs)using minute amounts of DNA extracted from morphologically correlated microdissected tissue samples.Freshly frozen tissue specimens from OF(n=29)and FD(n=28)patients were obtained for analysis.Lesion fibrous tissues and surrounding normal tissues were obtained by laser capture microdissection(LCM),with~30–50 cells(5000–10000µm2)per sample.We found that the rate of recurrent CNAs in OF cases was much higher(44.8%,13 of 29)than that in FD cases(3.6%,1 of 28).Sixty-nine percent(9 of 13)of the CNA-containing OF cases involved segmental amplifications and deletions on Chrs 7 and 12.We also identified eight CNA-associated genes(HILPDA,CALD1,C1GALT1,MICALL2,PHF14,AIMP2,MDM2,and CDK4)with amplified expression,which was consistent with the copy number changes.We further confirmed a jaw lesion with a previous uncertain diagnosis due to its ambiguous morphological features and the absence of GNAS mutation as OF based on the typical Chr 12 amplification pattern in its CNA profile.Moreover,analysis of a set of longitudinal samples collected from an individual with a cellular lesion in suspicion of OF at the first surgery,recurrence and the latest malignant transformation revealed identical CNA patterns at the three time points,suggesting that copy number profiling can be used as an important tool to identify borderline lesions or lesions with malignant potential.Overall,CNA profiling of fibro-osseous lesions can greatly improve differential diagnosis between OF and FD and help predict disease progression. | Ming Ma Lu Liu Ruirui Shi Jianyun Zhang Xiaotian Li Xuefen Li Jiaying Bai Jianbin Wang Yanyi Huang Tiejun Li | 2021 | International Journal of Oral Science2021，13，2： | 3 |
| 12 | Water molecules on the liquid superlubricity interfaces achieved by phosphoric acid solution显示文摘The superlubricity mechanism of phosph olipid molecules on biological surfaces and interfaces has been receiving much attention.Since the superlubricity can be achieved with a phosphoric acid aqueous solution,the interaction of the phosphate group with the water molecule is considered to be the key to bio-lubrication.However,no direct evidence has been offered to distinctly interpret the underlying mech anism of superlubricity,due to the limitations in the method for the detection of interfacial molecules,especially water molecules on the interface.By using sum-freq uency g en eration(SFG)vibrational spectroscopy,which is extremely sensitive to interfacial molecules,the authors were able to explore the underlying microscopic mechanism for superlubricity in a phosphoric acid system,which might be related to interfacia I water molecules.By trapping the phosphoric acid aqueous solution between silicon nitride and silica surfaces,they discovered that phosphoric acid could exercise a great influence on the ordered structure of interfacial water molecules,contributing to SFG spectral changes in the broad O-H bond stretching region.This work directly revealed the interfacial interaction between water and phosphoric acid molecules in liquid superlubricity interfaces,which could shed new light on the microscopic mechanism of liquid superlubricity. | Yuan Gao Liran Ma Yong Liang Bohong Li Jianbin Luo | 2018 | Biosurface and Biotribology2018，4，3： | 3 |
| 13 | In situ monitoring of the structural change of microemulsions in simulated gastrointestinal conditions by SAXS and FRET显示文摘Microemulsions are promising drug delivery systems for the oral administration of poorly watersoluble drugs. However, the evolution of microemulsions in the gastrointestinal tract is still poorly characterized,especially the structural change of microemulsions under the effect of lipase and mucus. To better understand the fate of microemulsions in the gastrointestinal tract, we applied small-angle X-ray scattering(SAXS) and fluorescence resonance energy transfer(FRET) to monitor the structural change of microemulsions under the effect of lipolysis and mucus. First, the effect of lipolysis on microemulsions was studied by SAXS, which found the generation of liquid crystalline phases. Meanwhile, FRET spectra indicated micelles with smaller particle sizes were generated during lipolysis, which could be affected by CaCl_2, bile salts and lecithin. Then, the effect of mucus on the structural change of lipolysed microemulsions was studied. The results of SAXS and FRET indicated that the liquid crystalline phases disappeared, and more micelles were generated. In summary, we studied the structural change of microemulsions in simulated gastrointestinal conditions by SAXS and FRET, and successfully monitored the appearance and disappearance of the liquid crystalline phases and micelles. | Xia Lv Shuguang Zhang Huipeng Ma Peipei Dong Xiaodong Ma Ming Xu Yan Tian Zeyao Tang Jinyong Peng Haibo Chen Jianbin Zhang | 2018 | Acta Pharmaceutica Sinica B2018，8，4： | 2 |
| 14 | Improvement in the risk assessment of oral leukoplakia through morphology-related copy number analysis显示文摘Oral leukoplakia is the most common type of oral potentially malignant disorders and considered a precursor lesion to oral squamous cell carcinoma.However,a predictor of oral leukoplakia prognosis has not yet been identified.We investigated whether copy number alteration patterns may effectively predict the prognostic outcomes of oral leukoplakia using routinely processed paraffin sections.Comparison of copy number alteration patterns between oral leukoplakia with hyperplasia(HOL,n=22)and dysplasia(DOL,n=21)showed that oral leukoplakia with dysplasia had a higher copy number alteration rate(86%)than oral leukoplakia with hyperplasia(46%).Oral leukoplakia with dysplasia exhibited a wider range of genomic variations across all chromosomes compared with oral leukoplakia with hyperplasia.We also examined a retrospective cohort of 477 patients with oral leukoplakia with hyperplasia with detailed follow-up information.The malignant transformation(MT,n=19)and leukoplakia recurrence(LR,n=253)groups had higher frequencies of aneuploidy events and copy number loss rate than the free of disease(FD,n=205)group.Together,our results revealed the association between the degree of copy number alterations and the histological grade of oral leukoplakia and demonstrated that copy number alteration may be effective for prognosis prediction in oral leukoplakia patients with hyperplasia. | Xiaotian Li Lu Liu Jianyun Zhang Ming Ma Lisha Sun Xuefen Li Heyu Zhang Jianbin Wang Yanyi Huang Tiejun Li | 2021 | Science China(Life Sciences)2021，64，9： | 2 |
| 15 | Influence of tribofilm on superlubricity of highly-hydrogenated amorphous carbon films in inert gaseous environments显示文摘In this study,we mainly focus on the structural morphology and inter-atomic bonding state of tribofilms resulting from a highly-hydrogenated amorphous carbon(a-C:H) film in order to ascertain the underlying mechanisms for its superlubric behavior(i.e.,less than 0.01 friction coefficient).Specifically,we achieved superlubricity(i.e.,friction coefficients of down to 0.003) with this film in dry nitrogen and argon atmospheres especially when the tribo-pair is made of an a-C:H coated Si disk sliding against an a-C:H coated steel ball,while the a-C:H coated disk against uncoated ball does not provide superlubricity.We also found that the state of superlubricity is more stable in argon than in nitrogen and the formation of a smooth and uniformly-thick carbonaceous tribofilm appears to be one of the key factors for the realization of such superlubricity.Besides,the interfacial morphology of sliding test pairs and the atomic-scale bond structure of the carbon-based tribofilms also play an important role in the observed superlubric behavior of a-C:H films.Using Raman spectroscopy and high resolution transmission electron microscopy,we have compared the structural differences of the tribofilms produced on bare and a-C:H coated steel balls.For the a-C:H coated ball as mating material which provided superlow friction in argon,structural morphology of the tribofilm was similar or comparable to that of the original a-C:H coating;while for the bare steel ball,the sp^2-bonded C fraction in the tribofilm increased and a fingerprint-like nanocrystalline structure was detected by high resolution transmission electron microscopy(HRTEM).We also calculated the shear stresses for different tribofilms,and established a relationship between the magnitude of the shear stresses and the extent of sp^3-sp^2 phase transformation. | LIU ShuWei ZHANG ChenHui OSMAN Eryilmaz CHEN XinChun MA TianBao HU YanZhong LUO JianBin ALI Erdemir | 2016 | Science China(Technological Sciences)2016，59，12： | 2 |
| 16 | Condensation heat transfer of steam on vertical dropwise and filmwise coexisting surfaces with a thick organic film promoting dropwise mode显示文摘 | MA Xuehu WANG Lan CHEN Jianbin | 2003 | Experimental Heat Transfer2003，16，4： | 1 |
| 17 | Nanostructured organic electrode materials grown on graphene with covalent-bond interaction for high-rate and ultra-long-life lithium-ion batteries显示文摘 | Qing Zhao Jianbin Wang Chengcheng Chen Ting Ma Jun Chen | 2017 | Nano Research2017，10，12： | 1 |
| 18 | Yield, quality and irrigation water use efficiency of sweet sorghum [Sorghum bicolor (Linn.) Moench] under different land types in arid regions显示文摘 | Xie Tingting Su Peixi Shan Lishan Ma Jianbin | 2012 | EN2012，，1： | 1 |
| 19 | Slant Toeplitz operators on the weighted Bergman spaces显示文摘 | Yucai MA Jianbin XIAO | | 0，，01： | 1 |
| 20 | 3D Artificial Array Interface Engineering Enabling Dendrite-Free Stable Zn Metal Anode显示文摘The ripple effect induced by uncontrollable Zn deposition is considered as the Achilles heel for developing high-performance aqueous Zn-ion batteries.For this problem,this work reports a design concept of 3D artificial array interface engineering to achieve volume stress elimination,preferred orientation growth and dendrite-free stable Zn metal anode.The mechanism of MXene array interface on modulating the growth kinetics and deposition behavior of Zn atoms were firstly disclosed on the multi-scale level,including the in-situ optical microscopy and transient simulation at the mesoscopic scale,in-situ Raman spectroscopy and in-situ X-ray diffraction at the microscopic scale,as well as density functional theory calculation at the atomic scale.As indicated by the electrochemical performance tests,such engineered electrode exhibits the comprehensive enhancements not only in the resistance of corrosion and hydrogen evolution,but also the rate capability and cyclic stability.High-rate performance(20 mA cm^(-2))and durable cycle lifespan(1350 h at 0.5 mA cm^(-2),1500 h at 1 mA cm^(-2)and 800 h at 5 mA cm^(-2))can be realized.Moreover,the improvement of rate capability(214.1 mAh g^(-1)obtained at 10 A g^(-1))and cyclic stability also can be demonstrated in the case of 3D MXene array@Zn/VO2battery.Beyond the previous 2D closed interface engineering,this research offers a unique 3D open array interface engineering to stabilize Zn metal anode,the controllable Zn deposition mechanism revealed is also expected to deepen the fundamental of rechargeable batteries including but not limited to aqueous Zn metal batteries. | Jianbin Ruan Dingtao Ma Kefeng Ouyang Sicheng Shen Ming Yang Yanyi Wang Jinlai Zhao Hongwei Mi Peixin Zhang | 2023 | Nano-Micro Letters2023，15，3： | 1 |
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