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| 1 | Pressure infiltrated Cu/diamond composites for LED applications显示文摘Diamond reinforced copper (Cu/diamond) composites were prepared by a pressure infiltration technique.The composites show a super high conductivity of 713 W m-1 K-1 in combination with an extremely low coefficient of thermal expansion (CTE) of 7.72 × 10-6 K-1 (25-100 ℃),which are achieved by modifying the copper matrix with adding 0.3 wt.% of boron to get a good thermal contact between the matrix and the diamond particles.By adopting a series of postmachining techniques the composites were made into near-net-shape parts,and an electroless silver coating was also successfully plated on the composites.Finally,their potential applications in the thermal management of light emitting diodes (LED) were illustrated via prototype examples. | FAN Yeming GUO Hong XU Jun CHU Ke ZHU Xuexin JIA Chengchang YIN Fazhang | 2011 | Rare Metals2011，30，2： | 4 |
| 2 | Conversion of pure Chinese fir plantation to multi-layered mixed plantation enhances the soil aggregate stability by regulating microbial communities in subtropical China显示文摘Background:Soil aggregates are the basic units of soil structure,and their stability is a key indicator of soil quality and capacity to support ecosystem functions.The impacts of various environmental factors on soil aggregates have been widely studied.However,there remains elusive knowledge on the synergistic effects of changing forest stand structure on soil aggregate stability(SAS),particularly in subtropical China where soil erosion remains a critical issue.Methods:We investigated variations in the components of soil humus(HS),including humic acids(HAs),fulvic acids(FAs),and humins(HMs),under pure Chinese fir(Cunninghamia lanceolata)plantation(PP)and multilayered mixed plantation(MP)comprising C.lanceolata,Castanopsis hystrix,and Michelia hedyosperma.The state of soil aggregate stability,was determined by three separate methods,i.e.,dry-sieving,wet-sieving,and the Le Bissonnais.High-throughput sequencing was used to determine the diversity and composition of microbial communities under PP and MP.We then built partial least squares path models(PLS-PM)for assessing the responses of SAS to the variations in soil microorganisms and HS components.Results:The MP stands had significantly greater SAS(P<0.05),higher content of HAs and more rapid organic matter humification within aggregates,than the PP stands.High-throughput sequencing confirmed that the Pielou andα-diversity index values(Chao1 and Shannon)for fungi were all significantly higher under MP than under PP,while no marked difference was found in bacterialα-diversity between the two plantation types.Moreover,there were markedly greater abundance of three bacterial phyla(Verrucomicrobia,Chloroflexi,and Gemmatimonadetes)and three fungal phyla(Ascomycota,Kickxellomycota,and Glomeromycota),and significantly less abundance of two bacterial phyla(Planctomycetes and Firmicutes)and four fungal phyla(Basidiomycota,Mortierellomycota,Mucoromycota,and Rozellomycota)under MP than under PP.The Chloroflexi and Ascomycota phyla appeared to be the primary drivers of soil aggregate distribution.Our findings revealed that the promotion of SAS under MP was mainly driven by increased soil organic matter(SOM)content,which altered bacterial communities and enhanced fungal diversity,thereby increasing HAs content and the rate of organic matter humification.Conclusions:Considering the combined effects of enhanced soil quality,productivity,and relevant economic costs,introducing broadleaved tree species into Chinese fir plantations can be an effective strategy for stabilizing soil structure against erosion in subtropical China.Our study elucidated the controls on variations of SAS in Chinese fir-dominated plantations and demonstrated the benefit of converting pure Chinese fir plantation to multi-layered mixed plantations in increasing soil structural stability and improving site quality. | Guannv Gao Xueman Huang Haocheng Xu Yi Wang Weijun Shen Wen Zhang Jinliu Yan Xiaoyan Su Shushou Liao Yeming You | 2022 | Forest Ecosystems2022，9，6： | 4 |
| 3 | Use of angiotensin-converting enzyme inhibitors and angiotensin Ⅱ receptor blockers in context of COVID-19 outbreak:a retrospective analysis显示文摘The possible effects of angiotensin-converting enzyme inhibitors(ACEIs)or angiotensin Ⅱ receptor blockers(ARBs)on COVID-19 disease severity have generated considerable debate.We performed a single-center,retrospective analysis of hospitalized adult COVID-19 patients in Wuhan,China,who had definite clinical outcome(dead or discharged)by February 15,2020.Patients on anti-hypertensive treatment with or without ACEI/ARB were compared on their clinical characteristics and outcomes.The medical records from 702 patients were screened.Among the 101 patients with a history of hypertension and taking at least one anti-hypertensive medication,40 patients were receiving ACEI/ARB as part of their regimen,and 61 patients were on antihypertensive medication other than ACEI/ARB.We observed no statistically significant differences in percentages of in-hospital mortality(28%vs.34%,P=0.46),ICU admission(20%vs.28%,P=0.37)or invasive mechanical ventilation(18%vs.26%,P=0.31)between patients with or without ACEI/ARB treatment.Further multivariable adjustment of age and gender did not provide evidence for a significant association between ACEI/ARB treatment and severe COVID-19 outcomes.Our findings confirm the lack of an association between chronic receipt of reninangiotensin system antagonists and severe outcomes of COVID-19.Patients should continue previous antihypertensive therapy until further evidence is available. | Jiuyang Xu Chaolin Huang Guohui Fan Zhibo Liu Lianhan Shang Fei Zhou Yeming Wang Jiapei Yu Luning Yang Ke Xie Zhisheng Huang Lixue Huang Xiaoying Gu Hui Li Yi Zhang Yimin Wang Frederick G.Hayden Peter W.Horby Bin Cao Chen Wang | 2020 | Frontiers of Medicine2020，14，5： | 2 |
| 4 | An unsupervised adaptation method for deep neural network-based large vocabulary continuous speech recognition 显示文摘 | Xiao Yeming Si Yujing Xu Ji | 2014 | Journal ofInformation & Computational Science2014，11，14： | 1 |
| 5 | Cerebral ischemic injury after transcatheter aortic valve replacement in patients with pure aortic regurgitation显示文摘Considering the surgical risk stratification for patients with severe calcific aortic stenosis(AS),transcatheter aortic valve replacement(TAVR)is a reliable alternative to surgical aortic valve replacement(SAVR)(Fan et al.,2020,2021;Lee et al.,2021).Despite the favorable clinical benefits of TAVR,stroke remains a dreaded perioperative complication(Auffret et al.,2016;Kapadia et al.,2016;Kleiman et al.,2016;Huded et al.,2019).Ischemic overt stroke,identified in 1.4%to 4.3%of patients in TAVR clinical practice,has been associated with prolonged disability and increased mortality(Auffret et al.,2016;Kapadia et al.,2016;Levi et al.,2022).The prevalence of hyperintensity cerebral ischemic lesions detected by diffusion-weighted magnetic resonance imaging(DW-MRI)was reported to be about 80%,which is associated with impaired neurocognitive function and vascular dementia(Vermeer et al.,2003;Barber et al.,2008;Kahlert et al.,2010). | Xianbao LIU Hanyi DAI Jiaqi FAN Dao ZHOU Gangjie ZHU Abuduwufuer YIDILISI Jun CHEN Yeming XU Lihan WANG Jian'an WANG | 2023 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2023，24，6： | 0 |
| 6 | Effects of Microbial Fertilizers in Improving Acidic Tobacco-planting Soil and Tobacco Leaf Quality显示文摘[Objectives]This study was conducted to improve acidic soil and enhance the quality of tobacco leaves.[Methods]The effects of different microbial fertilizers on improving acidic tobacco-planting soil and tobacco leaf quality were investigated through plot experiments.[Results]The application of microbial fertilizers could improve the pH value of acidic soil,and composite microbial agent A showed the best application effect.The application of bio-organic fertilizer was beneficial to improving the contents of available phosphorus and available boron in acidic soil.The application of composite microbial agent A was beneficial to improving the contents of available phosphorus and available potassium in acidic soil,and could promote the growth of tobacco plants and improve the economic traits of flue-cured tobacco and the coordination of chemical components in tobacco leaves.The application of composite microbial agent B led to a downward trend in the content of available boron in acidic soil.The application of composite microbial agent B could promote the absorption of nutrients by tobacco plants,and improve their disease resistance and the quality of tobacco leaves.Due to the differences in functional microorganisms contained,the application effects of different microbial fertilizers in improving acidic tobacco-planting soil and improving tobacco leaf quality varied.Overall,the application of microbial fertilizers could increase soil pH,activate soil nutrients,promote tobacco growth,enhance disease resistance,increase tobacco output value,and improve tobacco quality.Microbial fertilizers have good application prospects in improving acidic soil and improving tobacco quality.[Conclusions]The application of microbial fertilizers to improve acidic tobacco-planting soil can ensure the normal growth and development of tobacco plants and the improvement of tobacco leaf quality,achieving high-quality and sustainable development of Zhaotong tobacco. | Xia NI Shungang SHEN Xianyi ZENG Dewen LI Yeming FU Min CHEN Chaokai YU Libing QI Ying-guo RUAN Changchong ZI Haohan GONG Guangjun HU Mengsheng ZHANG Xu ZHANG Shu PENG Hongbing LI | 2023 | Agricultural Biotechnology2023，12，2： | 0 |
| 7 | 降低可退货运输物品损失率的最优决策显示文摘可回收运输物品(RTI)因其在减少包装垃圾和提高供应链可持续性方面的优势而被广泛使用。然而,RTI的损失将导致产品流与RTI 供应不匹配,从而影响运营的连续性。本文研究了一个由单个制造商和单个零售商组成的RTI供应链,假设零售商可以通过投资于员工培训来减少RTI的损失。我们首先开发一个库存模型来最小化系统的总成本。然后分析了RTI闭环供应链的最优决策问题。我们比较了零售商投资于减少RTI损失和不投资于RTI损失的情况。结果表明,零售商投资减少RTI损失将提高供应链效率,降低系统总成本。然而,零售商只有在成本下降时才会投资。因此,我们认为侧付款是一种有效的激励,以刺激零售商的投资。并建立了考虑投资成本分担的非对称纳什议价模型来协调RTI供应链。我们比较了制造商和零售商的总最优成本。结果表明,该系统能够实现协调,降低了制造商和零售商的最优总成本。 | Xiangxiang Fan Yeming Gong Xianhao Xu Bipan Zou | 2019 | 绿色包装2019，0，3： | 0 |
| 8 | Experimental study on the correlation between hill direct seeding rate and field seedling rate of typical rice varieties in cold areas显示文摘In order to examine the relationship between the seeding rate of a hill-direct-seeding machine and seedling rate in field,six rice varieties typical for cold areas were selected to conduct the indoor germination tests and field seedling experiment using a hill-direct-seeding machine.Indoor germination and field seedling tests were performed to study the correlation among the mechanical precision seeding process,machine seeding rate and field seedling rate.The results showed that the indoor germination rates were higher than 90%.The series of spoons was adaptable to the hill-direct-seeding process.The number of seeds was 28-30,18-20 and 8-10 grains/hill.The field seedling rates were higher than 85%.The rice variety of Suijing-18 achieved the best field seedling rate,and the highest seeding rate was 18-20 grains/hill,while the average field seedling rate was 94.25%.On this basis,the action law of the hill-direct-seeding machine and the main factors influencing the field seedling rate were analyzed.Mechanical vibration resulted in a higher average seeding rate of the middle seed metering device of the hill-direct-seeding machine than that of both ends.The force between the seed spoons and rice seeds mechanically damaged the seed buds,resulting in the actual field seedling rate being lower than the ideal indoor germination rate.The experimental results can provide a reference for the selection of typical direct seeding rice varieties,the improvement of key components of hill-direct-seeding machines,and the promotion of agronomic models. | Han Tang Yeming Jiang Changsu Xu Wenqi Zhou Qi Wang Yijia Wang | 2021 | International Journal of Agricultural and Biological Engineering2021，14，5： | 0 |
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