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| 1 | Characterization of nanoscale iron and its degradation of 2,4-dichlorophenol显示文摘Nanoscale iron was detected by TEM, X-ray diffraction and X-ray photoelectron spectroscopy. It was found that the size of the nanoscale iron particles is in the range of 30?40 nm according to TEM image, and it contains abundant Fe3O4 as passivating layers on the surface of the core-shell structure. To improve its performance, dilute HCl was used for the removal of the passivating layers, and the degradation of 2,4-dichlorophenol (2,4-DCP) was measured for the nanoscale iron samples treated and untreated. Experimental results demonstrated that the removal of 2,4-DCP by untreated nanoscale iron is mainly due to the adsorption of 2, 4-DCP by nanoscale iron, and there are no degradation products detected by HPLC in the process. However, excellent dechlorination of 2,4-DCP was gained by HCl-treated nanoscale iron, and 2-chlorophenol, 4-chlorophenol and phenol were detected during the process. It was concluded that dechlorination is the key reaction pathway for the degradation of 2,4-DCP by activated nanoscale iron, and phenol is found to be the main product. | HOU ChunFeng GE XiaoPeng ZHOU YanMei LI Yi WANG DongSheng TANG HongXiaoI | 2010 | Chinese Science Bulletin2010，55，4： | 6 |
| 2 | High-sensitivity, high-spatial-resolution distributed strain sensing based on a poly(methyl methacrylate) chirped fiber Bragg grating显示文摘In this study,a high-sensitivity,high-spatial-resolution distributed strain-sensing approach based on a poly(methyl methacrylate)chirped fiber Bragg grating(CFBG)is proposed and experimentally demonstrated.Linearly chirped FBGs in a polymer optical fiber provide an alternative to the silica fiber owing to the lower Young’s modulus,which can yield a higher stress sensitivity under the same external force.According to the spatial wavelength-encoded characteristic of the CFBG,a fully distributed strain measurement can be achieved by optical frequency-domain reflectometry.Through time-/space-resolved short-time Fourier transform,the applied force can be located by the beat frequency originated from the space-induced time delay and measured by the differential frequency offset originated from the strain-induced dispersion time delay.In a proof-of-concept experiment,a high spatial resolution of 1 mm over a gauge length of 40 mm and a strain resolution of 0.491 Hz/μεwere achieved. | Chengang Lyu Ziqi Liu Ziqiang Huo Chunfeng Ge Xin Cheng Haw-Yaw Tam | 2020 | Photonics Research2020，8，7： | 2 |
| 3 | Molecular characteristics of S-RNase alleles as the determ inant of self-i ncompatibility in the style of Fragaria viridi显示文摘Strawberry(Fragaria spp.)is a member of the Rosoideae subfamily in the family Rosaceae.The self-incompatibility(SI)of some diploid species is a key agronomic trait that acts as a basic pollination barrier;however,the genetic mechanism underlying SI control in strawberry remains unclear.Two candidate S-RNases(S a-and S^-RNase)identi fi ed in the transcriptome of the styles of the self-incompatible Fragaria viridis 42 were con fi rmed to be SI determinants at the S locus following genotype identi fi cation and intraspeci fi c hybridization using sel fi ng progenies.Whole-genome collinearity and RNase T2 family analysis revealed that only an S locus exists in Fragaria;however,none of the compatible species contained S-RNase.Although the results of interspeci fi c hybridization experiments showed that F.viridis(SI)styles could accept pollen from F.mandshurica(self-compatible),the reciprocal cross was incompatible.S a and S b-RNase contain large introns,and their noncoding sequences(promotors and introns)can be transcribed into long noncoding RNAs(lncRNAs).Overall,the genus Fragaria exhibits S-RNase-based gametophytic SI,and S-RNase loss occurs at the S locus of compatible germplasms.In addition,a type of SI-independent unilateral incompatibility exists between compatible and incompatible Fragaria species.Furthermore,the large introns and neighboring lncRNAs in S-RNase in Fragaria could offer clues about S-RNase expression strategies. | Jianke Du Chunfeng Ge Tingting Li Sanhong Wang Zhihong Gao Hidenori Sassa Yushan Qiao | 2021 | Horticulture Research2021，8，1： | 1 |
| 4 | Demodulation system for fiber Bragg grating sensors using digital filtering technique显示文摘 | Chengang Lü Zhixiong Hu Peng Zu Chunfeng Ge Xing Wu | 2008 | Transactions of Tianjin University2008，，： | 1 |
| 5 | Tunable multi-wavelength fiber ring laser based on semi- conductor optical amplifier 显示文摘 | Wang Zhaoying Hu Zhiyong Ge Chunfeng | 2004 | Chinese Optics Letters2004，2，9： | 1 |
| 6 | Contribution of non-Saccharomyces yeasts to aroma-active compound production,phenolic composition and sensory profile in Chinese Vidal icewine显示文摘To acquire candidate non-Saccharomyces strains for preparation of high-quality Vidal icewine,11 representative indigenous non-Saccharomyces strains were selected for analyzing their production of organic acids,phenolic compounds,aroma-active compounds and evaluating their sensory profile in Vidal juice.The results showed that the contents of organic acids in the wines were controlled and balanced well by the non-Saccharomyces strains as well as polyphenol concentrations were well improved during the fermentation.The strains differed from each other in their ability to produce aroma compounds,causing diversity and complexity of aroma characteristics in wine.Fermentation by Saccharomycopsis crataegensis YC30(Sc)and Hanseniaspora uvarum QTX22(Hu)could enhance the sweet and floral notes in Vidal icewine,especially Sc,which has never been reported before.It can not only enrich the aroma categories,but also increase the content ofδ-decalactone,γ-decalactone,ethyl isobutyrate,ethyl butyrate,phenethyl acetic acid,etc.The evaluation and optimization of non-Saccharomyces yeast strains could provide theoretical basis for the improvement of ice wine quality,and supply new ideas and strategies for the brewing of ice wine. | Qian Ge Chunfeng Guo Yue Yan Xiangyu Sun Tingting Ma Jing Zhang Caihong Li Chunlin Gou Tianli Yue Yahong Yuan | 2022 | Food Bioscience2022，46，2： | 1 |
| 7 | Genetic factors associated with non-motor symptoms in Parkinson’s disease显示文摘Parkinson’s disease (PD) is the second most common neurodegenerative disorder after Alzheimer’s disease. It is a complex syndrome with heterogeneous aetiologies, pathogenesis and manifestations. Patients with PD may present with motor symptoms and various non-motor symptoms (NMSs). NMSs have been reported in almost every diagnosed case of PD and usually precede motor symptoms. Multiple factors have been proved to be associated with the occurrence of NMSs in PD, among which genetic differentiation is a featured one. With the development of sequencing techniques, an increasing number of NMS-related genetic factors have been identified. This article reviews some of the latest discoveries in this regard. | Yilun Ge Kai Li Chunfeng Liu | 2019 | Journal of Translational Neuroscience2019，4，1： | 0 |
| 8 | HMIBase: An Hierarchical Indexing System for Storing and Querying Big Data显示文摘Relational database management systems are usually deployed on single-node machines and have strict limitations in terms of da-ta structure. This means they do not work well with big data, and No SQL has been proposed as a solution. To make data queryingmore efficient, indexes and memory cache techniques are used in No SQL databases. In this paper, we propose a hierarchical in-dexing mechanism and a prototype distributed data-storage system, called HMIBase, which has hierarchical indexes for non-prima-ry keys in tables and makes data querying more efficient. HMIBase uses HBase as the lower data storage and creates a memorycache for more efficient data transmission. HMIBase supports coprocessor-to-process update requests. It also provides a client withquery and update APIs and a server to support RPCs from the client and finish jobs. To improve the cache hit ratio, we propose amemory cache replacement strategy, called Hot Score algorithm, in HMIBase. The experimental results show that Hot Score algo-rithm is better than other cache-replacement strategies. | Shengmei Luo Di Zhao Wei Ge Rong Gu Chunfeng Yuan Yihua Huang | 2014 | ZTE Communications2014，12，4： | 0 |
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