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| 1 | Seasonal variation in body mass and energy budget in Chinese bulbuls (pycnonotus sinensis)显示文摘Background: Seasonal adjustments in body mass and energy budget are important for the survival of small birds in temperate zones. Seasonal changes in body mass, body temperature, gross energy intake(GEI), digestible energy intake(DEI), body fat content, as well as length and mass of the digestive tract, were measured in Chinese Bulbuls(Pycnonotus sinensis) caught in the wild at Wenzhou, China.Methods: Body mass was determined with a Sartorius balance. The caloric contents of the dried food and feces were then determined using a oxygen bomb calorimeter. Total fat was extracted from the dried carcasses by ether extraction in a Soxhlet apparatus. The digestive tract of each bird was measured and weighed, and was then dried to a constant mass.Results: Body mass showed a significant seasonal variation and was higher in spring and winter than in summer and autumn. Body fat was higher in winter than in other seasons. GEI and DEI were significantly higher in winter.The length and mass of the digestive tract were greatest in winter and the magnitude of both these parameters was positively correlated with body mass, GEI and DEI. Small passerines typically have higher daily energy expenditure in winter, necessitating increased food consumption.Conclusions: This general observation is consistent with the observed winter increase in gut volume and body mass in Chinese Bulbuls. These results suggest that Chinese Bulbuls adjust to winter conditions by increasing their body mass, body fat, GEI, DEI and digestive tract size. | Mengsi Wu Yuchao Xiao Fang Yang Limeng Zhou Weihong Zheng Jinsong Liu | 2014 | Chinese Birds2014，，1： | 6 |
| 2 | Extrahepatic manifestations of chronic hepatitis C virus infection:297 cases from a tertiary medical center in Beijing, China显示文摘 | Cheng Zhaojing Zhou Baotong Shi Xiaochun Zhang Yao Zhang Lifan Chen Limeng Liu Xiaoqing | 2014 | Chinese Medical Journal2014，，7： | 6 |
| 3 | Enhanced photoresponse of Ti0_(2)/MoS_(2)heterostructure phototransistors by the coupling of interface charge transfer and photogating显示文摘Two-dimensional(2D)MoS_(2)with appealing physical properties is a promising candidate for next-generation electronic and optoelectronic devices,where the ultrathin MoS_(2)is usually laid on or gated by a dielectric oxide layer.The oxide/MoS_(2)interfaces widely existing in these devices have significant impacts on the carrier transport of the MoS_(2)channel by diverse interface interactions.Artificial design of the oxide/MoS_(2)interfaces would provide an effective way to break through the performance limit of the 2D devices but has yet been well explored.Here,we report a high-performance MoS_(2)-based phototransistor with an enhanced photoresponse by interfacing few-layer MoS_(2)with an ultrathin Ti0_(2)layer.The Ti0_(2)is deposited on MoS_(2)through the oxidation of an e-beam-evaporated ultrathin Ti layer.Upon a visible-light illumination,the fabricated Ti0_(2)/MoS_(2)phototransistor exhibits a responsivity of up to 2,199 A/W at a gate voltage of 60 V and a detectivity of up to 1.67×10^(13)Jones at a zero-gate voltage under a power density of 23.2μW/mm^(2).These values are 4.0 and 4.2 times those of the pure MoS_(2)phototransistor.The significantly enhanced photoresponse of Ti0_(2)/MoS_(2)device can be attributed to both interface charge transfer and photogating effects.Our results not only provide valuable insights into the interactions at Ti0_(2)/MoS_(2)interface,but also may inspire new approach to develop other novel optoelectronic devices based on 2D layered materials. | Bingxu Liu Yinghui Sun Yonghuang Wu Kai Liu Huanyu Ye Fangtao Li Limeng Zhang Yong Jiang Rongming Wang | 2021 | Nano Research2021，14，4： | 4 |
| 4 | Thermal shock behavior of 30 wt% BAS/Si3N4 self-reinforced composite显示文摘 | Ye Feng Liu Limeng Zhang Haijiao | 2010 | Journal of Alloys and Compounds2010，493，： | 1 |
| 5 | Processing and microstruc-ture characterization of liquid-phase-sintered,α-SiC matrix composites显示文摘 | MA Jingmei YE Feng LIU Limeng | 2010 | J Alloy Compd2010，493，： | 1 |
| 6 | Pore structure and mechanical properties in freeze cast porous Si 3 N 4 composites using polyacrylamide as an addition agent显示文摘 | Feng Ye Jingyi Zhang Haijiao Zhang Limeng Liu | 2010 | Journal of Alloys and Compounds2010，，1： | 1 |
| 7 | A Track-type Inverted Climbing Robot with Bio-inspired Spiny Grippers显示文摘To enable the capacity of climbing robots to work on steep surfaces,especially on inverted surfaces,is a fundamental but challenging task.This capacity can extend the reachable workspace and applications of climbing robots.A track-type inverted climbing robot called SpinyCrawler was developed in this paper.Using a spiny track with an opposed gripping mechanism,the robot was experimentally demonstrated to have the ability of generating considerable adhesion to achieve stable inverted climbing.First,to guarantee reliable attachment of the robot on rough ceilings,a spiny gripper inspired by the opposed gripping prolegs of caterpillars is designed,and a gripping model of the interaction between spines and the ceiling asperities is established and analyzed.Second,a spiny track is developed by assembling dozens of spiny grippers to enable continuous attachment.A cam mechanism is introduced in the robot design without extra actuators to achieve stable attachment and easy detachment during continuous climbing.Finally,climbing experiments are conducted on different surfaces,using a SpinyCrawler prototype.Experimental results demonstrated stable climbing ability on various rough inverted and vertical surfaces,including concrete walls,crushed stone walls,sandpaper walls,brick walls,and brick ceilings. | Yanwei Liu Limeng Wang Fuzhou Niu Pengyang Li Yan Li Tao Mei | 2020 | Journal of Bionic Engineering2020，17，5： | 1 |
| 8 | Wnt信号通路介导细胞非自主的线粒体未折叠蛋白反应显示文摘文章简介线粒体不仅是细胞的能量代谢中心,同时与衰老和衰老相关神经退行性疾病息息相关。线粒体功能损伤,将启动细胞内的线粒体未折叠蛋白反应(mitochondrial unfolded protein response,UPRmt). | 张茜 邬雪影 陈鹏 Limeng Liu Nan Xin 田烨 Andrew Dillin美国加州大学伯克利分校 | 2019 | 科学新闻2019，0，2： | 0 |
| 9 | Effect of an external magnetic field on improved electroslag remelting cladding process显示文摘Obtaining a uniform interface temperature field plays a crucial role in the interface bonding quality of bimetal compound rolls.Therefore,this study proposes an improved electroslag remelting cladding(ESRC)process using an external magnetic field to improve the uniformity of the interface temperature of compound rolls.The improved ESRC comprises a conventional ESRC circuit and an external coil circuit.A comprehensive 3D model,including multi-physics fields,is proposed to study the effect of external magnetic fields on the multi-phys-ics fields and interface temperature uniformity.The simulated results demonstrate that the nonuniform Joule heat and flow fields cause a non-uniform interface temperature in the conventional ESRC.As for the improved ESRC,the magnetic flux density(B_(coil))along the z-axis is pro-duced by an anticlockwise current of the external coil.The rotating Lorentz force is generated from the interaction between the radial current and axial B_(coil).Therefore,the slag pool flows clockwise,which enhances circumferential effective thermal conductivity.As a result,the uniformity of the temperature field and interface temperature improve.In addition,the magnetic flux density and rotational speed of the simulated results are in good agreement with those of the experimental results,which verifies the accuracy of the improved ESRC model.Therefore,an improved ESRC is efficient for industrial production of the compound roll with a uniform interface bonding quality. | Zhiwen Hou Yanwu Dong Zhouhua Jiang Zhihao Hu Limeng Liu Kunjie Tian | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，8： | 0 |
| 10 | Additively Manufactured Flexible Electronics with Ultrabroad Range and High Sensitivity for Multiple Physiological Signals'Detection显示文摘Flexible electronics can be seamlessly attached to human skin and used for various purposes, such as pulse monitoring, pressure measurement, tensile sensing, and motion detection. Despite their broad applications, most flexible electronics do not possess both high sensitivity and wide detection range simultaneously;their sensitivity drops rapidly when they are subjected to even just medium pressure. In this study, ultrabroad-range, high-sensitivity flexible electronics are fabricated through additive manufacturing to address this issue. The key to possess high sensitivity and a wide detection range simultaneously is to fabricate flexible electronics with large depth-width ratio circuit channels using the additive manufacturing inner-rinsing template method. These electronics exhibit an unprecedented high sensitivity of 320 kPa^(−1) over the whole detection range, which ranges from 0.3 to 30,000 Pa (five orders of magnitude). Their minimum detectable weight is 0.02 g (the weight of a fly), which is comparable with human skin. They can stretch to over 500% strain without breaking and show no tensile fatigue after 1000 repetitions of stretching to 100% strain. A highly sensitive and flexible electronic epidermal pulse monitor is fabricated to detect multiple physiological signals, such as pulse signal, breathing rhythm, and real-time beat-to-beat cuffless blood pressure. All of these signals can be obtained simultaneously for detailed health detection and monitoring. The fabrication method does not involve complex expensive equipment or complicated operational processes, so it is especially suitable for the fabrication of large-area, complex flexible electronics. We believe this approach will pave the way for the application of flexible electronics in biomedical detection and health monitoring. | Huanhuan Feng Yaming Liu Liang Feng Limeng Zhan Shuaishuai Meng Hongjun Ji Jiaheng Zhang Mingyu Li Peng He Weiwei Zhao Jun Wei | 2022 | Research2022，，4： | 0 |
| 11 | Inhibition of USP7 suppresses advanced glycation end-induced cell cycle arrest and senescence of human umbilical vein endothelial cells through ubiquitination of p53显示文摘Diabetes mellitus is a n arising public health concern,and diabetic foot is one of the most common complications of diabetes.Current management for diabetic foot cannot reach optimal remission.In this study,we aim to explore the mechanism underlying the pathogenesis of diabetic foot and provide novel strategies for the treatment of diabetic foot.A total of 10 normal skin tissues and 20 diabetic foot ulcer specimens are collected.Cell proliferation is determined by CCK-8 assay.Cell cycle is determined by flow cytometry,and cell senescence is evaluated by 0-galactosidase staining.Co-immunoprecipitation assay is used to explore the interaction between USP7 and p53.Advanced glycation end products(AGEs)are used to establish diabetic cell model,and streptozotocin(STZ)is used to establish diabetic rat model.Our results showed that USP7 expression is increased in diabetic.foot ulcer and in human umbilical vein endothelial cells(HUVECs)after treatment with AGEs.Inhibition of USP7 can reduce cell cycle arrest and cell senescence in HUVECs.Moreover,USP7 can interact with p53 and promote its expression through mediating its deubiquitination.Knockdown of p53 can reverse USP7-mediated cell cycle arrest and cell senescence in HUVECs.In diabetic rats,HBX 41108,the specific inhibitor of USP7,can significantly accelerate wound healing.Our study reveals that the inhibition of USP7 can suppress AGEs-induced cell cycle arrest and cell senescence of HUVECs through promoting p53 ubiquitination.USP7 is a potential target for the treatment of diabetic foot ulcers. | Xu Li Tao Wang Yue Tao Xiaojun Wang Limeng Li Jianjun Liu | 2022 | Acta Biochimica et Biophysica Sinica2022，54，3： | 0 |
| 12 | Engineering Strategies for Suppressing the Shuttle Effect in Lithium–Sulfur Batteries显示文摘Lithium–sulfur(Li–S)batteries are supposed to be one of the most potential next-generation batteries owing to their high theoretical capacity and low cost.Nevertheless,the shuttle effect of firm multi-step two-electron reaction between sulfur and lithium in liquid electrolyte makes the capacity much smaller than the theoretical value.Many methods were proposed for inhibiting the shuttle effect of polysulfide,improving corresponding redox kinetics and enhancing the integral performance of Li–S batteries.Here,we will comprehensively and systematically summarize the strategies for inhibiting the shuttle effect from all components of Li–S batteries.First,the electrochemical principles/mechanism and origin of the shuttle effect are described in detail.Moreover,the efficient strategies,including boosting the sulfur conversion rate of sulfur,confining sulfur or lithium polysulfides(LPS)within cathode host,confining LPS in the shield layer,and preventing LPS from contacting the anode,will be discussed to suppress the shuttle effect.Then,recent advances in inhibition of shuttle effect in cathode,electrolyte,separator,and anode with the aforementioned strategies have been summarized to direct the further design of efficient materials for Li–S batteries.Finally,we present prospects for inhibition of the LPS shuttle and potential development directions in Li–S batteries. | Jiayi Li Li Gao Fengying Pan Cheng Gong Limeng Sun Hong Gao Jinqiang Zhang Yufei Zhao Guoxiu Wang Hao Liu | 2024 | Nano-Micro Letters2024，16，1： | 0 |
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