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| 1 | Grease film evolution in rolling elastohydrodynamic lubrication contacts显示文摘Although most rolling element bearings are grease lubricated,the underlying mechanisms of grease lubrication has not been fully explored.This study investigates grease film evolution with glass disc revolutions in rolling elastohydrodynamic lubrication(EHL)contacts.The evolution patterns of the grease films were highly related to the speed ranges and grease structures.The transference of thickener lumps,film thickness decay induced by starvation,and residual layer were recognized.The formation of an equilibrium film determined by the balance of lubricant loss and replenishment was analyzed.The primary mechanisms that dominate grease film formation in different lubricated contacts were clarified. | Xinming LI Feng GUO Gerhard POLL Yang FEI Ping YANG | 2021 | Friction2021，9，1： | 7 |
| 2 | Design of variable screw pitch rib snapping roller and residue cutter for corn harvesters显示文摘The blocking between two snapping rollers will seriously constrict the harvesting efficiency for corn harvester.A variable screw pitch rib snapping roller was developed to solve this problem.The comparative experiment between fixed screw pitch rib snapping rollers and variable screw pitch rib snapping rollers illustrated that variable screw pitch ribs can avoid corn-stalk blocking effectively,and it can improve working efficiency by 56.7%.Conservation tillage with standing corn residue was testified that it had a strong control of soil wind erosion.In order to implement this mode of conservation tillage at a production scale,a cutter was developed in this study.Subsequently,two experiments were conducted,one was to test the cutting ratio(defined as the totally cut off stalk population divided by total stalk population),and the other one was to test standing-residue height.The experiment results showed that the mean cutting ratio increased significantly(p<0.05)along with increasing height of cutter-head above the ground(cutting height);the cutting ratio’s mean value increased significantly(p<0.05)along with the decreasing angle between the cutter-head and the ground(cutting angle).The average standing-residue height increased along with the increase of cutting height from 300 mm to 500 mm.The average standing-residue height increased significantly(p<0.05)along with the decrease of cutting angle from 15°to 0°.Therefore,the newly designed snapping roller can improve the harvesting efficiency and prolong the working life of the cutting table;and the cutter can promote the popularization of the conservation tillage with standing corn residue in Northeast China. | Wang Gang Jia Honglei Tang Lie Zhuang Jian Jiang Xinming Guo Mingzhuo | 2016 | International Journal of Agricultural and Biological Engineering2016，9，1： | 6 |
| 3 | Rush-hour aromatic and chlorinated hydrocarbons in selected subway stations of Shanghai,China显示文摘Air samples were collected simultaneously at platform,mezzanine and outdoor in five typical stations of subway system in Shanghai,China using stainless steel canisters and analyzed by gas chromatography-mass selective detector (GC-MSD) after cryogenic pre-concentration.Benzene,toluene,ethylbenzene and xylenes (BTEX) at the platforms and mezzanines inside the stations averaged (10.3±2.1),(38.7±9.0),(19.4±10.1) and (30.0±11.1) μg/m 3,respectively;while trichloroethylene (TrCE),tetrachloroethylene (TeCE) and para-dichlorobenzene (pDCB),vinyl chloride and carbon tetrachloride were the most abundant chlorinated hydrocarbons inside the stations with average levels of (3.6±1.3),(1.3±0.5),(4.1±1.1),(2.2±1.1) and (1.2±0.3) μg/m 3,respectively.Mean levels of major aromatic and chlorinated hydrocarbons were higher indoor (platforms and mezzanines) than outdoor with average indoor/outdoor (I/O) ratios of 1.1-9.5,whereas no significant indoor/outdoor differences were found except for benzene and TrCE.The highly significant mutual correlations (p<0.01) for BTEX between indoor and outdoor and their significant correlation (p<0.05) with methyl tert-butyl ether (MTBE),a marker of traffic-related emission without other indoor and outdoor sources,indicated that BTEX were introduced into the subway stations from indoor/outdoor air exchange and traffic emission should be their dominant source.TrCE and pDCB were mainly from indoor emission and TeCE might have both indoor emission sources and contribution from outdoor air,especially in the mezzanines. | Yanli Zhang Chunlei Li Xinming Wang Hai Guo Yanli Feng Jianmin Chen | 2012 | Journal of Environmental Sciences2012，24，1： | 6 |
| 4 | Stalk cutting mechanism of no-tillage planter for wide/narrow row farming mode显示文摘A no-tillage planter of narrow row spacing was designed according to the agronomic requirements of wide/narrow row farming mode in the black soil region of Northeast China.Due to the narrow spacing of the seeder unit,a gear-tooth stalk cutting mechanism was designed in order to prevent residues from blocking the planter.The basic parameters,number and edge curve of the stalk cutting blade were designed and optimized.Three-factor and three-level combined orthogonal experiments were conducted using the factors of working speed(1.12 m/s,1.57 m/s and 2.02 m/s),tillage depth(75 mm,90 mm and 105 mm)and cutter spacing(15 mm,30 mm and 45 mm),which significantly affected stalk cutting rate and soil disturbance rate.The optimal combination is the working speed of 1.62 m/s,tillage depth of 92 mm and cutter spacing of 35 mm.Under this condition,the stalk cutting rate is more than 90%and soil disturbance rate is 7.5%-12.0%.The performance of the new no-tillage planter was tested by using the above parameters.The results showed that the no-tillage planter of narrow row spacing came up to the relevant national standards in China. | Jia Honglei Jiang Xinming Yuan Hongfang Zhuang Jian Zhao Jiale Guo Mingzhuo | 2017 | International Journal of Agricultural and Biological Engineering2017，10，2： | 5 |
| 5 | Laser pattern-induced unidirectional lubricant flow for lubrication track replenishment显示文摘Effective oil replenishment to the lubrication track of a running bearing is crucial to its sustainable operation.Reliable practical solutions are rare despite numerous theoretical studies were conducted in the last few decades.This paper proposes the use of surface effect,wettability gradient,to achieve the goal.This method is simple and can be nicely implemented using femtosecond laser ablation.A periodic comb-tooth-shaped pattern with anisotropic wetting capability is devised and its effect on the anisotropic spreading behaviour of an oil droplet is studied.Results show that the comb-tooth-shaped pattern enables the rearrangement of oil distribution,thereby escalating oil replenishment to the lubrication track.The effect is due to the unbalanced interfacial force created by the surface pattern.The influence of the shape and the pitch of teeth,which are the two governing factors,on oil transport is also reported.The effects of the newly devised surface pattern on lubrication are experimentally evaluated under the conditions of limited lubricant supply.These results are promising,demonstrating the reduction in bearing friction and the increase in lubricating film thickness. | Chenglong LIU Feng GUO Patrick WONG Xinming LI | 2022 | Friction2022，10，8： | 4 |
| 6 | An efficient algorithm to compute transient pressure responses of slanted wells with arbitrary inclination in reservoirs显示文摘Compared with vertical and horizontal wells, the solution and computation of transient pressure responses of slanted wells are more complex. Vertical and horizontal wells are both simplified cases of slanted wells at particular inclination, so the model for slanted wells is more general and more complex than other models for vertical and horizontal wells. Many authors have studied unsteady-state flow of fluids in slanted wells and various solutions have been proposed. However, until now, few of the published results pertain to the computational efficiency. Whether in the time domain or in the Laplace domain, the computation of integration of complex functions is necessary in obtaining pressure responses of slanted wells, while the computation of the integration is complex and time-consuming. To obtain a perfect type curve the computation time is unacceptable even with an aid of high-speed computers. The purpose of this paper is to present an efficient algorithm to compute transient pressure distributions caused by slanted wells in reservoirs. Based on rigorous derivation, the transient pressure solution for slanted wells of any inclination angle is presented. Assuming an infinite-conductivity wellbore, the location of the equivalent-pressure point is determined. More importantly, according to the characteristics of the integrand in a transient pressure solution for slanted wells, the whole integral interval is partitioned into several small integral intervals, and then the method of variable substitution and the variable step-size piecewise numerical integration are employed. The amount of computation is significantly reduced and the computational efficiency is greatly improved. The algorithm proposed in this paper thoroughly solved the difficulty in the efficient and high-speed computation of transient pressure distribution of slanted wells with any inclination angle. | Wang Haitao Zhang Liehui Guo Jingjing Liu Qiguo He Xinming | 2012 | Petroleum Science2012，9，2： | 3 |
| 7 | Fabrication of large area hexagonal boron nitride thin films for bendable capacitors显示文摘高度可靠、可弯曲的电介质为未来应用在灵活或可弯曲的电子设备被需要。六角形的硼氮化物(h-BN ) 能由于它的宽乐队差距被用作可弯曲的电介质。这里,我们由一个低压力化学药品蒸汽免职方法与可控制的厚度制作高质量的 h-BN 电影。我们作为电介质用 h-BN 电影表明一个平行板的电容器。h-BN 电容器与 9.0 MV/cm 的高故障地力量是可靠的。越过 h-BN 电影的通道电流对电介质的厚度相反地指数,它让电容显著地落下。h-BN 电容器显示出 6.8 F/cm2 的一个最好的特定的电容,它比计算的值高一个数量级。 | Ning Guo Jinquan Wei Yi Jia Huanhuan Sun Yuhang Wang Kehan Zhao Xiaolan Shi Liuwan Zhang Xinming Li Anyuan Cao Hongwei Zhu Kunlin Wang Dehai Wu | 2013 | Nano Research2013，6，8： | 3 |
| 8 | Development of two TaqMan real-time reverse transcription-PCR assays for the detection of severe acute respiratory syndrome coronavirus-2显示文摘The outbreak of coronavirus disease 2019(COVID-19)in Wuhan,China,was caused by a novel coronavirus(CoV),named severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).The rapid detection of viral nucleic acids is critical for the early identification of infected cases.We have developed two TaqMan real-time reverse transcription-PCR assays to detect SARS-CoV-2.The designed primers target the nucleocapsid(N)and open reading frame(ORF)1b gene regions,where the probes discriminate SARS-CoV-2 from other human and animal CoVs.The sensitivities are one genomic copy per reaction for theN gene assay and ten copies for the ORF 1b gene assay.The overall linear detection ranges are 1–10^(6)and 10–10^(6)copies per reaction for the N gene assay and the ORF 1b gene assay,respectively.Surveillance of 23 suspected COVID-19 patients demonstrated that SARS-CoV-2 could be detected from 100%(23/23)and 62.5%(16/23)of clinical specimens by the N gene assay and the ORF 1b gene assay,respectively.All of the samples not detected by the ORF 1b gene assay were throat swabs,indicating a lower viral load in the upper respiratory tract and the relatively lower sensitivity of the ORF 1b gene assay.The assays developed in the present study offer alternative diagnostic tests for COVID-19. | Yiwei Liu Yingying Wang Xinming Wang Yan Xiao Lan Chen Li Guo Jianguo Li Lili Ren Jianwei Wang | 2020 | Biosafety and Health2020，2，4： | 3 |
| 9 | A male-ABCD algorithm for hepatocellular carcinoma risk prediction in HBs Ag carriers显示文摘Objective: Hepatocellular carcinoma(HCC) development among hepatitis B surface antigen(HBs Ag) carriers shows gender disparity, influenced by underlying liver diseases that display variations in laboratory tests. We aimed to construct a risk-stratified HCC prediction model for HBs Ag-positive male adults.Methods: HBs Ag-positive males of 35-69 years old(N=6,153) were included from a multi-center populationbased liver cancer screening study. Randomly, three centers were set as training, the other three centers as validation. Within 2 years since initiation, we administrated at least two rounds of HCC screening using Bultrasonography and α-fetoprotein(AFP). We used logistic regression models to determine potential risk factors,built and examined the operating characteristics of a point-based algorithm for HCC risk prediction.Results: With 2 years of follow-up, 302 HCC cases were diagnosed. A male-ABCD algorithm was constructed including participant's age, blood levels of GGT(γ-glutamyl-transpeptidase), counts of platelets, white cells,concentration of DCP(des-γ-carboxy-prothrombin) and AFP, with scores ranging from 0 to 18.3. The area under receiver operating characteristic was 0.91(0.90-0.93), larger than existing models. At 1.5 points of risk score,26.10% of the participants in training cohort and 14.94% in validation cohort were recognized at low risk, with sensitivity of identifying HCC remained 100%. At 2.5 points, 46.51% of the participants in training cohort and 33.68% in validation cohort were recognized at low risk with 99.06% and 97.78% of sensitivity, respectively. At 4.5 points, only 20.86% of participants in training cohort and 23.73% in validation cohort were recognized at high risk,with positive prediction value of 22.85% and 12.35%, respectively.Conclusions: Male-ABCD algorithm identified individual's risk for HCC occurrence within short term for their HCC precision surveillance. | Yuting Wang Minjie Wang He Li Kun Chen Hongmei Zeng Xinyu Bi Zheng Zhu Yuchen Jiao Yong Wang Jian Zhu Hui Zhao Xiang Liu Chunyun Dai Chunsun Fan Can Zhao Deyin Guo Hong Zhao Jianguo Zhou Dongmei Wang Zhiyuan Wu Xinming Zhao Wei Cui Xuehong Zhang Jianqiang Cai Wanqing Chen Chunfeng Qu | 2021 | Chinese Journal of Cancer Research2021，33，3： | 3 |
| 10 | Effect of pulsatile perfusion during cardiopulmonary bypass in terms of radial artery sphygmogram显示文摘OBJECTIVE: To investigate a quantitative method for using radial artery pulse waveforms to assess the effect of pulsatile flow during cardiopulmonary bypass(CPB).METHODS: A total of 34 adults with heart disease who underwent open-heart surgery between April2010 and January 2011 were randomized into a pulsatile perfusion group(n=17) and a non-pulsatile perfusion group(n=17). Radial arterial pulse waveforms of pulsatile and non-pulsatile perfusion patients were observed and compared before and during CPB.RESULTS: No pulse waveform could be detected at patients' radial artery in both groups when the aorta was cross-clamped. Pulse waveforms could be detected at pulsatile perfusion patients' radial artery, but could not be detected at non-pulsatile perfusion patients' radial artery during CPB. Additionally, patients' pulse waveforms during pulsatile perfusion were lower than those before the operation.CONCLUSION: Our findings indicate that radial artery sphygmogram can be used as a valid indicator to evaluate the effectiveness of pulsatile perfusion during CPB. | Zhifeng Zhang Jiatuo Xu Enyuan Zhu Qi Zhang Lu Yu Yongbing Qiu Jianguo Tang Zhaofu Fei Xin Li Liping Tu Chouping Han Ying Liu Zhen Guo Changle Zhou Meiyu Shi Yingxin Qian Yimin Bao Xinming Ji | 2014 | Journal of Traditional Chinese Medicine2014，34，6： | 2 |
| 11 | Carbon isotope analysis for source identification of atmospheric formaldehyde and acetaldehyde in Dinghushan Biosphere Reserve in South China 显示文摘 | GUO Songjun WEN Sheng WANG Xinming | 2009 | Atmos Environ2009，43，2223： | 1 |
| 12 | Solution property investigation of combination flooding systems consisting of gemini-non-ionic mixed surfactant and hydrophobically associating polyacrylamide for enhanced oil recovery显示文摘 | Guo Yongjun Liu Jianxin Zhang Xinming | 2012 | Energy&Fuels2012，26，4： | 1 |
| 13 | Triple linear-array image geometry model of ZiYuan-3 surveying satellite and its validation显示文摘 | Xinming Tang Guo Zhang Xiaoyong Zhu Hongbo Pan Yonghua Jiang Ping Zhou Xia Wang | 2013 | International Journal of Image and Data Fusion2013，，1： | 1 |
| 14 | Performance of flat capillary compensated deep/shallow pockets hydrostatic/hydro- dynamic journal-thrust floating ring bearing显示文摘 | Guo Hang Lai Xinming Wu Xiaoling | 2009 | Tfibology Tran- scations2009，52，2： | 1 |
| 15 | Expression and importance of inhibitor of DNA binding helix–loop–helix protein in salivary adenoid cystic carcinoma显示文摘 | WeiHong Xie XinMing Li Ren GuoXin Wei Guo | 2009 | British Journal of Oral & Maxillofacial Surgery2009，，6： | 1 |
| 16 | 16S rRNA Cloning and Identification of a Strain Isolated from Intestinal Tract of Rex Rabbit显示文摘This study was conducted to identify bacterial strain He Nan-001 isolated from intestinal tract of healthy rex rabbit.The strain was identified by gram staining,and OD_(600) values at different culture time were measured to develop a bacterial growth curve.The metabolic pathways of the bacterium using sugar in fermentation was identified with biochemical tubes.Total RNA of the strain was extracted,and total cDNA was obtained by Oligo(dT) method.Primers were designed using Primer 5.0 bio-software according to the 16S rRNA sequence published in Gen Bank,through cloning,ligation to vector PMD18T,construction of PMD18T/16S rRNA vector and transformation into DH5α,plasmid was extracted and sequenced,and the sequencing result was compared with sequences in NCBI followed by drawing of phylogenetic tree.The strain was verified to be double-stranded gram-positive cocci,which could ferment glucose,mannose,maltose and sorbitol,producing acids production,but failed to ferment sucrose,serum inulin and β-galactosidase.The phylogenetic tree analysis showed that the isolated bacterium shared the highest homology with an India isolate,and belongs to diplostreptococcus.This study provides significance experimental data and theoretical guidance for further development and utilization of the bacterial strain. | Guangjun GUO Yumao WANG Sufang LYU Jing HAN Xinming WU Hanjie ZHANG Qiqi ZOU Qiang FU Zhiqiang SHEN | 2016 | Agricultural Biotechnology2016，5，5： | 1 |
| 17 | Solution Property Investigation of Combination Flooding Systems Con- sisting of Gemini-Non-Ionic Mixed Surfactant and Hydrophobi- cally Associating Polyacrylamide for Enhanced Oil Recovery 显示文摘 | Guo Yongjun Liu Jianxin Zhang Xinming | 2012 | EnergFuels2012，26，4： | 1 |
| 18 | Fast example-based surface texture synthesis via discrete optimization显示文摘 | Jianwei Han Kun Zhou Li-Yi Wei Minmin Gong Hujun Bao Xinming Zhang Baining Guo | 2006 | The Visual Computer (-)2006，，9： | 1 |
| 19 | On the relationship between ozone and its precursors in the Pearl River Delta: application of an observation-based model (OBM)显示文摘 | Hairong Cheng Hai Guo Xinming Wang Sam M. Saunders S. H. M. Lam Fei Jiang Tijian Wang Aijun Ding Shuncheng Lee K. F. Ho | 2010 | Environmental Science and Pollution Research2010，，3： | 1 |
| 20 | Emission patterns and spatiotemporal variations of halocarbons in the Pearl River Delta region, southern China显示文摘 | ZHANG Y L GUO Hai WANG Xinming | 2010 | Journal of Geophysical Research2010，115，15309： | 1 |
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