|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 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 | 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 |
| 3 | STEP-LIKE CONTRAST STRUCTURE OF SINGULARLY PERTURBED OPTIMAL CONTROL PROBLEM*显示文摘为不可思议地使不安的最佳的控制问题的一个类的像步的对比结构的存在被对比结构理论介绍。借助于边界函数方法的直接计划,我们为不可思议地使不安的最佳的控制问题构造一致地有效的 asymptotic 解决方案。作为应用,一个例子被给在这篇论文说明主要结果。 | Mingkang Ni Limeng Wu | 2012 | Journal of Computational Mathematics2012，30，1： | 2 |
| 4 | Genotypic and phenotypic characterization of genetic differentiation and diversity in the USDA rice mini-core collection显示文摘 | Xiaobai Li Wengui Yan Hesham Agrama Biaolin Hu Limeng Jia Melissa Jia Aaron Jackson Karen Moldenhauer Anna McClung Dianxing Wu | 2010 | Genetica2010，，： | 1 |
| 5 | Cobalt doping amount determines dominant reactive species in peroxymonosulfate activation via porous carbon catalysts co-doped by cobalt and nitrogen显示文摘Switching the reaction routes in peroxymonosulfate(PMS)-based advanced oxidation processes have attracted much attention but remain challenging.Herein,a series of Co-N/C catalysts with different compositions and structures were prepared by using bimetallic zeolitic imidazolate frameworks based on ZIF-8 and ZIF-67(x Zn/Co-ZIFs).Results show that Co doping amount could mediate the transformation of the activation pathway of PMS over CoN/C.When Co doping amount was less than 10%,the constructed x Co-N/C/PMS system(x≤10%)was singlet oxygen-dominated reaction;however further increasing Co doping amount would lead to the generation and coexistence of sulfate radicals and high-valent cobalt,besides singlet oxygen.Furthermore,the nitrogen-coordinated Co(Co-NX)sites could serve as main catalytically active sites to generate singlet oxygen.While excess Co doping amount caused the formation of Co nanoparticles from which leached Co ions were responsible for the generation of sulfate radicals and high-valent cobalt.Compared to undoped N/C,Co doping could significantly enhance the catalytic performance.The 0.5%Co-N/C could achieve the optimum degradation(0.488 min^(-1))and mineralization abilities(78.4%)of sulfamethoxazole among the investigated Co-N/C catalysts,which was superior to most of previously reported catalysts.In addition,the application prospects of the two systems in different environmental scenarios(pH,inorganic anions and natural organic matter)were assessed and showed different degradation behaviors.This study provides a strategy to regulate the reactive species in PMS-based advanced oxidation process. | Xiang Li Limeng Wu Aiqin Zhang Shaohua Wu Yan Lin Chunping Yang | 2024 | Journal of Environmental Sciences2024，，4： | 0 |
| 6 | Riddle of the Sphinx:facts and evidence regarding the link between mental stress and tumor occurrence and development显示文摘To the Editor:The answer to the'Riddle of Sphinx'is'human',whose image is both negative and positive.It is often used as a metaphor for complex,mysterious,and incomprehensible problems.With the deterioration of modern living environment and the aggravation of stress,the incidence of the tumor is on the rise.Excessive or prolonged stress can lead to acute or chronic organ dysfunction and metabolic disorders. | Ruilin Wang Sheng Yu Limeng Yu Qiming Wang Yufeng Wu | 2022 | Chinese Medical Journal2022，135，24： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员