|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Controlled preparation and self-assembly of NdVO_4 nanocrystals显示文摘Phase-pure t-NdVO_4 nanocrystals with different shapes have been synthesized by facile and repeatable hydrothermal methods. The as-synthesized t-NdVO_4 nanoparticles were characterized by various techniques of X-ray diffraction(XRD). scanning electron microscope(SEM) and transmission electron microscope(TEM). The growth process and assembly behavior of t-NdVO_4 nanorod arrays were investigated. The results show that the morphology of t-NdV04 nanocrystals is greatly related to the pH value of precursor solution and that strong basic solution is not in favor of the formation of t-NdVO_4 nanoparticles. Due to the strong adhesive action and stabilization of OH^-ions to some crystal faces of NdVO_4, neodymium vanadate crystallite grows into oriented short nanorods and then into nanorod arrays. The shape, crystalline and dimension of NdVO_4 nanocrystals can be effectively governed in our work. | Li Tian Yan Li Huifeng Wang Shanmin Chen Jinjing Wang Zhen Guo Qiang Liu Qi Luo Yingjie Li Fafa Wu | 2018 | Journal of Rare Earths2018，36，2： | 1 |
| 2 | Microwave absorption properties of carbon nanotubes and tetrapod-shaped ZnO nanostructures composites显示文摘 | Huifeng Li Jian Wang Yunhua Huang Xiaoqin Yan Junjie Qi Jing Liu Yue Zhang | 2010 | Materials Science & Engineering B2010，，1： | 1 |
| 3 | Effects of various polyoxyethylene sorbitan monooils(Tweens)and sodium dodecyl sulfate on reflux synthesis of copper nanoparticles显示文摘 | Hengbo Yin Xiaonong Cheng Huifeng Hu Qi Yu Aili Wang | 2006 | Materials Research Bulletin2006，41，： | 1 |
| 4 | An Analysis on the Improvement of the Housing Security System Based on Population Mobility显示文摘China's urban housing security system has developed for years. The dual division between registered population and migrant population in cities still exists. While local governments undertake responsibility of the housing security through intergovernmental duty division, it is not appropriate because housing security is a kind of national income redistribution that belongs to the central government. From the perspective of the population mobility, the article discusses the problems of the current housing security system, based on which it proposes three recommendations for improving the existing housing security system. First, we should make a distinction between the national income redistribution carried out by the central government and the public services provided by local governments. The responsibility and fi scal expenditure of the local, provincial, and central government should be clearly defined. Second, intergovernmental fiscal transfer payment should be designed according to the population mobility status. Third, the housing security system should protect the demands of the new generation of peasant workers and migrant families. | Qi Huifeng Wang Weiqiang Qian Fang | 2016 | China City Planning Review2016，25，4： | 0 |
| 5 | The red/far-red light photoreceptor FvePhyB regulates tissue elongation and anthocyanin accumulation in woodland strawberry显示文摘Light is an important environmental signal that influences plant growth and development.Among the photoreceptors,phytochromes can sense red/far-red light to coordinate various biological processes.However,their functions in strawberry are not yet known.In this study,we identified an EMS mutant,named P8,in woodland strawberry(Fragaria vesca)that showed greatly increased plant height and reduced anthocyanin content.Mapping-by-sequencing revealed that the causal mutation in FvePhyB leads to premature termination of translation.The light treatment assay revealed that FvePhyB is a bona fide red/far-red light photoreceptor,as it specifically inhibits hypocotyl length under red light.Transcriptome analysis showed that the FvePhyB mutation affects the expression levels of genes involved in hormone synthesis and signaling and anthocyanin biosynthesis in petioles and fruits.The srl mutant with a longer internode is caused by a mutation in the DELLA gene FveRGA1(Repressor of GA1)in the gibberellin pathway.We found that the P8 srl double mutant has much longer internodes than srl,suggesting a synergistic role of FvePhyB and FveRGA1 in this process.Taken together,these results demonstrate the important role of FvePhyB in regulating plant architecture and anthocyanin content in woodland strawberry. | Qi Gao Shaoqiang Hu Xiaoli Wang Fu Han Huifeng Luo Zhongchi Liu Chunying Kang | 2023 | Horticulture Research2023，10，12： | 0 |
| 6 | Hot-melt extrusion promotes dissolution,extends“spring-parachute”process and inhibits crystallization in supersaturating microparticle systems显示文摘Despite the potential advantages of amorphism-induced supersaturation,the merit of new amorphiza-tion formation methods on the properties of the amorphous drug including the stability of the amor-phous state,dissolution/solubility,supersaturation,and'spring-parachute'process is still poorly understood,particularly for certain amorphous supersaturating drug delivery systems(aSDDS).The present work aimed to explore the detailed merit of current attractive amorphization manufacturing methods(i.g.,hot-melt extrusion(HME)technique)on the property improvement of aSDDS in form of amorphous solid dispersion microparticles by employing a model Bcs II drug nitrendipine and a polyvinylpyrrolidone-based model polymer copovidone.Many asDDS systems were developed by various methods,and their physicochemical properties were characterized by SEM,PXRD and DSC.HME-triggered amorphization induced superior supersaturation by the observation of the highest dissolution and solubility.HME induced the optimal supersaturation duration by the observed greatest extension of'spring-parachute'process(e.g,maximum AUCspring-parachute).HME technique is comparable with other techniques for the stabilization of amorphous state during storage.All aSDDS systems by HME and other methods showed improved long-term stability of the amorphous state in comparison to the pure amorphous drug.Fourier transformation infrared spectroscopy,Noyes-Whitney equation,nucleation theory and Gibbs free energy of transfer(△G)were used to analyze the underlying mechanisms.Mo-lecular mechanism studies indicated that HME caused a stronger crystallization inhibition effect in the asDDS systems than other methods,but molecular interaction is not a dominant mechanism for property enhancement caused by HME.For the mechanism associated with the polymer itself(PVPVA64),it could inhibit the drug recrystallization,solubilize the drug spontaneously and cause the improved molecular interactions in all aSDDS systems.This study provided a deep insight into detailed advantage of HME-triggered supersaturation/amorphization and facilitated the applications of the technique both in the field of particuology and in pharmaceutical industry. | Yanfei Zhang Huifeng Zhang Huan Yu Yinghui Ma Chengyi Hao Xiaoying Lin Yong Zhang Zhengqiang Li Xianrong Qi Jia Zeng Nianqiu Shi | 2023 | Particuology2023，，7： | 0 |
| 7 | Expert Consensus on Nutritional Support for Children with Congenital Heart Disease(2023 Edition)显示文摘The second edition of the expert consensus on pediatric nutrition was formed based on a global update of pedia-tric nutrition guidelines or consensus worldwide,the management of congenital heart disease,and the results of multi-center clinical nutrition research for congenital heart disease following thefirst Chinese consensus edition of 2016.The consensus was also shaped by the results of three discussion sessions and two questionnaires con-ducted by the 13-member collaboration group.This process was informed by both clinical guidelines and expert consensus.The quality of literature,both in English and Chinese,and the level of recommendations were evaluated using the Grading of Recommendations Assessment,Development,and Evaluations(GRADE)system. | Xuming Mo Wei Cai Jirong Qi Zhuoming Xu Ying Wang Weihui Yan Shoujun Li Nianguo Dong Xinxin Chen Jinfen Liu Qiang Shu Jimei Chen Haibo Zhang Hao Zhang Quansheng Xing Qi An Xiaofeng Li Xu Wang Yan He Junwu Su Taibing Fan Teng Ming Weibing Tang Li Hong Jinghao Zheng Ming Ye Guocheng Sun Yiqun Ding Liang Tao Yifeng Yang Zhongshi Wu Hua Cao Qiang Wang Keming Yang Libing Zhang Ping Wen Yanqin Cui Bo Zhai Yong Zou Qingya Tang Rui Chen Chun Wu Zhiyu Feng Caixia Liu Yaping Mi Rufang Zhang Ke Lin Xin Li Mingan Pi Xiangming Fan Shanshan Shi Peng Huang Zhengxia Pan Jiafeng Qi Renwei Chen Shuguang Tao Yaqin Shu Huifeng Zhang Lan Jiang Min Da Nishant Patel Liang Hu Cardiac Surgery Group of Pediatric Surgery Society of Chinese Medical Association and Parenteral Enteral Nutrition Society of Chinese Medical Association | 2023 | Congenital Heart Disease2023，18，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员