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| 1 | Tread Wear and Footprint Geometrical Characters of Truck Bus Radial Tires显示文摘Wear and mileage performance are the foremost performances for truck bus radial (TBR) tires. There are a lot of researches about the tire wear performance as well as the contact patch phenomenon by using finite element analysis (FEA) method or testing. But there is little published data on the correlations between the footprint geometry and the tread wear performance of tires. In this paper, an experiment on tire-ground performance of TBR tires is carried out by using Tekscan. The real-time changes of contact-area pressure distribution that occurred during the process of continuous load and unload are recorded. Three types of tires that act differently in behavior under normal usage are analyzed. A new method of researching in tire tread wear, which focuses on the geometrical characters of the footprint, is put forward. The experimental results of the three tires are described by using footprint geometrical characters. On the basis of studying the changing laws of footprint geometrical characters during the loading process and considering consumer survey and factory feedback information, the correlations between the geometrical character of footprints and tread destruction form are built. The analyzed results show that a greater contact area coefficient and a steady coefficient of contact result in a better wear performance for TBR tires. The footprint-shape coefficient changing laws in the process of loading are found to have a very good coincidence with the tread wear of the three types of tires. Tires with a smaller footprint-shape coefficient are likely to have an average tread wear while avoiding the shoulder wear first. The proposed research provides a new solution to predict tire-ground performance at the point of footprint and several useful references for improving tire design. | LIANG Chen WANG Guolin AN Dengfeng MA Yinwei | 2013 | Chinese Journal of Mechanical Engineering2013，26，3： | 11 |
| 2 | Digital mapping of soil salinization based on Sentinel-1 and Sentinel-2 data combined with machine learning algorithms显示文摘Soil salinization is one of the most important causes of land degradation and desertification,especially in arid and semi-arid areas.The dynamic monitoring of soil salinization is of great significance to land management,agricultural activities,water quality,and sustainable development.The remote sensing images taken by the synthetic aperture radar(SAR)Sentinel-1 and the multispectral satellite Sentinel-2 with high resolution and short revisit period have the potential to monitor the spatial distribution of soil attribute information on a large area;however,there are limited studies on the combination of Sentinel-1 and Sentinel-2 for digital mapping of soil salinization.Therefore,in this study,we used topography indices derived from digital elevation model(DEM),SAR indices generated by Sentinel-1,and vegetation indices generated by Sentinel-2 to map soil salinization in the Ogan-Kuqa River Oasis located in the central and northern Tarim Basin in Xinjiang of China,and evaluated the potential of multi-source sensors to predict soil salinity.Using the soil electrical conductivity(EC)values of 70 ground sampling sites as the target variable and the optimal environmental factors as the predictive variable,we constructed three soil salinity inversion models based on classification and regression tree(CART),random forest(RF),and extreme gradient boosting(XGBoost).Then,we evaluated the prediction ability of different models through the five-fold cross validation.The prediction accuracy of XGBoost model is better than those of CART and RF,and soil salinity predicted by the three models has similar spatial distribution characteristics.Compared with the combination of topography indices and vegetation indices,the addition of SAR indices effectively improves the prediction accuracy of the model.In general,the method of soil salinity prediction based on multi-source sensor combination is better than that based on a single sensor.In addition,SAR indices,vegetation indices,and topography indices are all effective variables for soil salinity prediction.Weighted Difference Vegetation Index(WDVI)is designated as the most important variable in these variables,followed by DEM.The results showed that the high-resolution radar Sentinel-1 and multispectral Sentinel-2 have the potential to develop soil salinity prediction model. | Guolin Ma Jianli Ding Lijng Han Zipeng Zhang Si Ran | 2021 | Regional Sustainability2021，2，2： | 4 |
| 3 | Hippocampal and thalamic neuronal metabolism in a putative rat model of schizophrenia°显示文摘The transcription factor early growth response protein 3(EGR3)is involved in schizophrenia.We developed a putative rat model of schizophrenia by transfecting lentiviral particles carrying the Egr3gene into bilateral hippocampal dentate gyrus.We assessed spatial working memory using the Morris water maze test,and neuronal metabolite levels in bilateral hippocampus and thalamus were determined by 3.0 T proton magnetic resonance spectroscopy.Choline content was significantly greater in the hippocampus after transfection,while N-acetylaspartate and the ratio of N-acetylaspartate to creatine/phosphocreatine in the thalamus were lower than in controls.This study is the first to report evaluation of brain metabolites using 3.0 T proton magnetic resonance spectroscopy in rats transfected with Egr3,and reveals metabolic abnormalities in the hippocampus and thalamus in this putative model of schizophrenia. | Guolin Ma Tianbin Song Min Chen Yuan Fu Yong Xu Ensen Ma Wu Wang Jiang Du Mingxiong Huang | 2013 | Neural Regeneration Research2013，8，26： | 2 |
| 4 | Ultrasonic-as-sisted synthesis of hydrophobic magnesium hydroxide nanoparticles显示文摘 | Song Guolin Ma Sude Tang Guoyi | | 0，，： | 1 |
| 5 | Let there be light: a bright future for Ca2+ signaling显示文摘Calcium ion(Ca^(2+))is a ubiquitous second messenger in eukaryotic cells.In response to electrical,hormonal,or mechanical stimulation,cytosolic Ca^(2+)levels increase due to Ca^(2+) influxes through ion channels embedded in the plasma membrane or Ca^(2+) releases from intracellular Ca^(2+) stores,such as the endoplasmic | Guolin Ma Jindou Liu Nhung T. Nguyen Yubin Zhou Youjun Wang | 2018 | Science Bulletin2018，63，16： | 1 |
| 6 | Analysis of prognostic factors of endoscopic optic nerve decompression in traumatic blindness显示文摘 | Yexun Song Heqing Li Yanhong Ma Wei Li Xiaowei Zhang Xueying Pan Guolin Tan | 2013 | Acta Oto-Laryngologica2013，，11： | 1 |
| 7 | Research and Implementation on Algorithm of Automatic Physical Topology Discovery in Heterogeneous Multi - subnet 显示文摘 | Xiaobo Ma Guolin Yang Xufei Zhuang | 2013 | Information Technology Journal2013，12，20： | 1 |
| 8 | No tillage outperforms conventional tillage under arid conditions and following fertilization显示文摘Reduced tillage practices present a tool that could sustainably intensify agriculture.The existing literature,however,lacks a consensus on how and when reduced tillage practices should get implemented.We reanalyzed here an extensive dataset comparing how regular tillage practices(i.e.,conventional tillage)impacted yield of eight crops compared to stopping tillage altogether(i.e.,no-tillage practice).We observed that aridity and fertilization favored no tillage over conventional tillage whereas conventional tillage performed better under high fertility settings.We further show that the responses are consistent across the crops.Our reanalysis complements the original and fills a gap in the literature questioning the conditions under which reducing tillage presents a viable alternative to common tillage practices. | Stavros D.Veresoglou Junjiang Chen Xuheng Du Qi Fu QingLiu Geng Chenyan Huang Xilin Huang Nan Hu Yiming Hun Guolin C.Li Zhiman Lin Zhiyu Ma Yuyi Ou Shuo Qi Haitian Qin Yingbo Qiu Xibin Sun Ye Tao YiLing Tian Jie Wang Lingxiao Wu Ziwei Wu Siqi Xie Ao Yang Dan Yang Chen Zeng Ying Zeng RuJie Zhang | 2023 | Soil Ecology Letters2023，5，1： | 1 |
| 9 | 显示文摘 | Song Guolin Ma Sude Tang Guoyi | 2010 | Energy2010，35，5： | 1 |
| 10 | Engineering of electrospun nanofiber scaffolds for repairing brain injury显示文摘Patients with brain injury can suffer disability and accompanying complications.Current clinical treatments have significant limitations to successful repair due to the complexity of the pathological processes and the inhibitory microenvironment that follows brain injury.Here,we conclude recent research progresses in engineering strate-gies based on electrospun nanofibers for promoting neural repair and functional recovery after brain injury.Firstly,we introduce the main pathological mechanisms of current brain injuries,pointing out the prospect of the application of electrospun nanofiber scaffolds compared to current clinical treatment strategies.We then discuss the repair strategies combining the structure and the morphology of nanofiber scaffolds with load therapeutic factors such as cells,drugs and growth factors.All of these strategies show potential for improving the repair of brain injury.Finally,we point out the challenges facing the effective treatment of brain injury,aiming to provide insights into the development of repairing scaffolds for brain function recovery from the perspective of clinical treatment. | Wenzhe Du Tong Wang Shuyun Hu Jixin Luan Feng Tian Guolin Ma Jiajia Xue | 2023 | Engineered Regeneration2023，4，3： | 0 |
| 11 | Gambogic acid-encapsulated polymeric micelles improved therapeutic effects on pancreatic cancer显示文摘Gambogic acid(GA) is a natural product with potent anticancer activity in vitro. However, poor water solubility and systematic toxicity limit the further clinical application of GA. Micellization of hydrophobic molecule could effectively ameliorate aqueous dispersity of GA and induce better blood retention and tumor accumulation, hence lead to improved stability and therapeutic effect of GA. In this study, monomethyl poly(ethylene glycol)-poly(ε-caprolactone)-poly(trimethylene carbonate)(MPEG-P(CL-ran-TMC)) was used to encapsulate GA by a single-step solid dispersion method to form a GA encapsulated MPEG-P(CLran-TMC) micelles(GA micelles). GA micelles were characterized with a small particle size(44 ±1 nm),high drug loading content(26.28% ± 0.12%) and high-efficiency encapsulation(87.59% ± 0.41 %). Compared with free GA, GA micelles showed better dispersion in water, prolonged release behavior in vitro, and enhanced tumor cellular uptake. GA micelles could also effectively induce apoptosis in AsPC-1 cells.Compared with free GA, GA micelles exhibited superior antitumor efficacy and better apoptosis induced effect in a subcutaneous xenograft mouse model of AsPC-1 cells. In conclusion, GA micelles which showed high-efficiency anti-tumor effect in vitro and in vivo may serve as a candidate for pancreatic cancer therapy. | Yan Wang Xinxin Wang Jing Zhang Li Wang Chunqing Ou Yaqian Shu Qinjie Wu Guolin Ma Changyang Gong | 2019 | Chinese Chemical Letters2019，30，4： | 0 |
| 12 | Preparation and cellular uptake behaviors of uniform fiber-like micelles with length controllability and high colloidal stability in aqueous media显示文摘Fragmentation/disassembly of fiber-like micelles generated by living crystalline-driven self-assembly(CDSA)is usually encountered in aqueous media,which hinders the applications of micelles.Herein,we report the generation of uniform fiber-like micelles consisting of a��Л-conjugated oligo(p-phenylenevinylene)core and a crosslinking silica shell with grafted poly(ethylene glycol)(PEG)chains by the combination of living CDSA,silica chemistry and surface grafting-onto strategy.Owing to the presence of crosslinking silica shell and the outmost PEG chains,the resulting micelles exhibit excellent dispersity and colloidal stability in PBS buffer,BSA aqueous solution and upon heating at 80℃ for 2 h without micellar fragmentation/disassembly.The micelles also show negligible cytotoxicity toward both HeLa cervical cancer and HEK239T human embryonic kidney cell lines.Interestingly,micelles with Ln of 156 nm show the“stealth”property with no significant uptake by HeLa cells,whereas some certain amounts of micelles with Ln of 535 nm can penetrate into HeLa cells,showing length-dependent cellular uptake behaviors.These results provide a route to prepare uniform,colloidally stable fiber-like nanostructures with tunable length and functions derived for biomedical applications. | Junyu Ma Chen Ma Xiaoyu Huang Pedro Henrique Hermes de Araujo Amit Kumal Goyal Guolin Lu Chun Feng | 2023 | Fundamental Research2023，3，1： | 0 |
| 13 | Variable stiffness wires based on magnetorheological liquid metals显示文摘Magnetorheological fluid(MRF)has shown its great potential in the development of large mechanical devices,such as dampers,shock absorbers,rotary brakes,clutches,and prosthetic joints.Recently,more research focus has been invested on using MRF to develop soft,stretchable,and miniaturized devices with variable stiffness for realizing functionalities that cannot be achieved using solid smart materials.Here,based on liquid metal magnetoactive slurries(LMMS),a variable stiffness wire with excellent electrical conductivity is demonstrated.Without exposure to a magnetic field,the LMMS wire has an extremely low stiffness,and can be easily stretched while maintaining an excellent electrical conductivity.When applying a magnetic field,the wire becomes much stiffer and can retain its shape even under a load.The combination of properties of flexibility,high electrical conductivity,and variable stiffness of the wire is harnessed to make a flexible gripper that can grasp objects of various shapes.Moreover,by using gallium instead of its liquid metal alloys,the tunable stiffness range of the LMMS wire is signifi-cantly enhanced and can be controlled using both external magnetic fields and temperature-induced phase change.The presented LMMS wire has the potential to be applied in flexible electronics,soft robotics and so on. | Xiangbo Zhou Jian Shu Hu Jin Hongtai Ren Gang Ma Ning Gong Duan Ge Juan Shi Shi-Yang Tang Guolin Yun Hongda Lu Shuai Dong Xiangpeng Li Shiwu Zhang Weihua Li | 2022 | International Journal of Smart and Nano Materials2022，13，2： | 0 |
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