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| 1 | Comparison of Persulfate Activation and Fenton Reaction in Remediating an Organophosphorus Pesticides-Polluted Soil显示文摘Organophosphorus pesticides(OPs) are one of the most regular pollutants and frequently detected in the contaminated sites,so developing an efficient method for the treatment of OPs is highly required. The aim of the present study was to compare the effectiveness of persulfate(PS) activation and Fenton reaction in remediating the soil polluted with OPs. The polluted soil used in this study was sampled from an abandoned insecticide factory in Nantong, Jiangsu Province of China, mainly containing chloropyrifos(CP) and 4-bromo-2-chlorophenol(BCP, the raw material of profenofos) with total concentration of about 30 000 mg kg^(-1). The results showed that both BCP and CP were efficiently degraded by base activation of PS, and increasing the ratio of Na OH/PS enhanced CP degradation, but slightly decreased BCP degradation. The greatest degradation rates for CP and BCP were 92% and 97%, respectively,with 7.0 mol L^(-1) Na OH and 0.21 mol L^(-1) PS and a soil-to-liquid ratio of 1:1. Furthermore, ferrous iron activation of PS also degraded BCP efficiently, but only 60% of CP was degraded under the same reaction conditions. These results indicated that base activation of PS was more feasible than Fe^(2+) activation and Fenton reaction in remediating the soil polluted with OPs. The high degradation rate for CP may be linked to the initial hydrolyzation of CP by base to 3,5,6-trichloro-2-pyridinol, which can be further rapidly degraded by free radicals generated from base activation of PS. | ZHU Changyin ZHU Fengxiao WANG Fuwang GAO Juan FAN Guangping ZHOU Dongmei FANG Guodong | 2017 | Pedosphere2017，27，3： | 11 |
| 2 | Density of Ni-Al Alloys in Liquid and Solid-Liquid Coexistence State Measured by a Modified Pycnometric Method显示文摘The density of Ni-Al alloys in both liquid state and solid-liquid coexistence state was measured with a modified pycnometric method. It was found that the density of NI-Al alloys decreases with increasing temperature and Al concentration in the alloys. The molar volume of liquid Ni-Al binary alloys increases with the increase of temperature and Al concentration. The partial molar volume of Al in NI-Al binary alloy was calculated approximately. The molar volume of liquid NI-Al alloy determined in the present work shows a negative deviation from the ideal linear molar volume. | LiangFANG FengXIAO ZushuLI ZainanTAO | 2004 | Journal of Materials Science & Technology2004，20，4： | 5 |
| 3 | Density of Liquid Ni-Mo Alloys Measured by a Modified Sessile Drop Method显示文摘The density of liquid binary Ni-Mo alloys with molybdenum concentration from 0 to 20% (mass fraction) was measured by a modified sessile drop method. It has been found that the density of the liquid Ni-Mo alloys decreases with increasing temperature, but increases with the increase of molybdenum concentration in the alloys. The molar volume of liquid Ni-Mo binary alloys increases with the increase of temperature and molybdenum concentration. The partial molar volume of molybdenum in Ni-Mo binary alloy has been approximately calculated as [13.18 - 2.65 × 10-3T + (-47.94 + 3.10 × 10-2T) × 10-2XMo] × 10-6m3·mol-1. The molar volume of Ni-Mo alloy determined in the present work shows a negative deviation from the ideal linear mixing molar volume. | LiangFANG ZushuLI ZaiNanTAO FengXIAO | 2004 | Journal of Materials Science & Technology2004，20，3： | 4 |
| 4 | Improving Densification and Mechanical Properties of FeAl/TiC Composites by Addition of Ni显示文摘FeAl/TiC composites were fabricated by hot pressing blended elemental powders. The effects of Ni-doping on thedensification and mechanical properties of the composites were studied. Results show that the density of the com-posites decreases with the content of TiC increasing, and the addition of Ni significantly improves the densificationprocess by enhancing mass transfer in the bonding phase. The mechanical properties of the composites are closelyrelated with their porosity. Besides increasing the density of the composites, the addition of Ni improves the mechan-ical properties by other three effects: solution-strengthening the bonding phase, strengthening the FeAl-TiC interfaceand increasing ductile fracture in FeAl phase. | Yong LIU, Fengxiao LIU, Baiyun HUANG, Kechao ZHOU, Yuehui HE and Zhihong TANGNational Key Lab for P/M, Central South University, Changsha 410083, China | 2003 | Journal of Materials Science & Technology2003，19，1： | 4 |
| 5 | Density and Structure Analysis of Molten Ni-W Alloys显示文摘Density of molten Ni and Ni-W alloys was measured in the temperature range of 1773~1873 K with a sessile drop method.The density of molten Ni and Ni-W alloys trends to decrease with increasing temperature. The density and molar volume of the alloys trend to increase with increasing W concentration in the alloys. The calculation result shows an ideal mixing of Ni-W alloys. | FengXIAO LiangFANG | 2004 | Journal of Materials Science & Technology2004，20，4： | 3 |
| 6 | Testing relative evolutionary rates and estimating divergence times among six genera of Rhizophoraceae using cpDNA and nrDNA sequences显示文摘The molecular phylogenetic trees of 10 species representing 6 genera of the family Rhizophoraceae have been constructed using the sequences of chloroplast genes ma/K and rbcL as well as the ITS regions of nuclear ribosomal DMA. Relative-rate tests between lineages in these phylogenetic trees have been performed. On the basis of the results of the relative-rate tests and related molecular evolutionary rate data, the divergence times between the lineages are estimated as follows: ( i) the first divergence time in these genera is 132.25 million years ago (mya); (ii) the average divergence time between two tribes, i.e. inland Legnotideae (except Carallia brachiata) and mangrove Rhizophoreae, is 64.13 mya; and (iii) the average divergence time between two inland species, C. garciniaefolia and C. pectinifolia, is 19.92 mya. | ZHONG Yang SHI Suhua TANG Xianhua HUANG Yelin TAN Fengxiao ZHANG Xiaoyan | 2000 | Chinese Science Bulletin2000，45，11： | 3 |
| 7 | Improvement on unequal interval gray forecast model显示文摘 | Wang Fengxiao | 2006 | Fuzzy Information and Engineering2006，6，1： | 1 |
| 8 | Microstructure and properties of thin wall by laser cladding forming显示文摘 | Fengxiao Huang Zhonghao Jiang Ximing Liu Jianshe Lian Li Chen | 2009 | Journal of Materials Processing Tech2009，，11： | 1 |
| 9 | Occurrence, partition behavior, source and ecological risk assessment of nitro-PAHs in the sediment and water of Taige Canal, China显示文摘Nitrated polycyclic aromatic hydrocarbons(NPAHs)are widespread organic pollutants that possess carcinogenic and mutagenic properties,so they may pose a risk to the environment and human health.In this study,the concentrations of 15 NPAHs and 16 polycyclic aromatic hydrocarbons(PAHs)in 30 surface water samples and 26 sediment samples were measured in 2018 from the Taige Canal,one of the main rivers flowing into Taihu Lake,China.The total NPAH concentrations in water and sediment ranged from 14.7 to 235 ng/L and 22.9 to 96.5 ng/g dw,respectively.9-nitrophenanthrene(nd–76.3 ng/L)was the dominant compound in surface water,while 2+3-nitrofluoranthene(1.73–18.1 ng/g dw)dominated in sediment.Among PAHs,concentration ranging from 1,097 to 2,981 ng/L and 1,089 to 4,489 ng/g dw in surface water and sediment,respectively.There was a strong positive correlation between the log octanol-water partition coefficient(Kow)and log sediment-water partition coefficient due to hydrophobic interaction.The fugacity fraction value increased with the decrease of log Kow,and chrysene was transferred from water into sediment.The residual NPAHs in surface water and sediment of the Taige Canal have partial correlation.Diesel engine and coal combustion emissions were probably the principal sources of NPAHs in surface water and sediment.The results of ecological risk assessment showed that some NPAHs inwater(e.g,1-nitropyrene and 6-nitrochrysene)and sediment(e.g.,2-nitrobiphenyl,5-nitroacenaphthene,9-nitrophenanthrene and 2+3-nitrofluoranthene)had moderate ecological risks,which should be of concern. | Jijie Kong Tao Ma Xiaoyu Cao Weidi Li Fengxiao Zhu Huan He Cheng Sun Shaogui Yang Shiyin Li Qiming Xian | 2023 | Journal of Environmental Sciences2023，，2： | 1 |
| 10 | Surface Tension of Molten Ni and Ni-Co Alloys显示文摘Surface tension of molten Ni and Ni-Co (5 and 10 mass fraction) alloys was measured at the temperature range of 1773~1873 K using an improved sessile drop method with an alumina substrate in an Ar+3%H2 atmosphere. The error of the data obtained was analyzed. The surface tension of molten Ni and Ni-Co (5 and 10 mass fraction) alloys decreases with increasing temperature. The influence of Co on the surface tension of Ni-Co alloys is little in the studied Co concentration range. | FengXIAO LiangFANG KiyoshiNOGI | 2005 | Journal of Materials Science & Technology2005，21，2： | 1 |
| 11 | One pot synthesis of heterometallic 3d-3d azide coordination architectures:effect of the single-ion anisotropy显示文摘 | ZHAO Jiongpeng HU Bowen ZHANG Fengxiao | 2010 | Inorg Chem2010，49，11： | 1 |
| 12 | Clinical features of probable severe acute respiratory syndrome in Beijing显示文摘AIM: To summarize clinical features of probable severe acute respiratory syndrome (SARS) in Beijing.METHODS: Retrospective cases involving 801 patients admitted to hospitals in Beijing between March and June 2003, with a diagnosis of probable SARS, moderate type.The series of clinical manifestation, laboratory and radiograph data obtained from 801 cases were analyzed. RESULTS: One to three days after the onset of SARS, the major clinical symptoms were fever (in 88.14% of patients), fatigue, headache, myalgia, arthralgia (25-36%), etc. The counts of WBC (in 22.56% of patients) lymphocyte (70.25%)and CD3, CD4, CD8 positive T cells (70%) decreased. From 4-7 d, the unspecific symptoms became weak; however, the rates of low respiratory tract symptoms, such as cough (24.18%), sputum production (14.26%), chest distress (21.04%) and shortness of breath (9.23%) increased, so did the abnormal rates on chest radiograph or CT. The low counts of WBC, lymphocyte and CD3, CD4, CD8 positiveT cells touched bottom. From 8 to 16 d, the patients presented progressive cough (29.96%), sputum production (13.09%), chest distress (29.96%) and shortness of breath (35.34%). All patients had infiltrates on chest radiograph or CT, some even with multi-infiltrates. Two weeks later, patients' respiratory symptoms started to alleviate, the infiltrates on the lung began to absorb gradually, the counts of WBC, lymphocyte and CD3, CD4, CD8 positive T cells were restored to normality.CONCLUSION: The data reported here provide evidence that the course of SARS could be divided into four stages, namely the initial stage, progressive stage, fastigium and convalescent stage. | Hai-YingLu Xiao-YuanXu YuLei Yang-FengWu Bo-WenChen FengXiao Gao-QiangXie De-MinHan | 2005 | World Journal of Gastroenterology2005，11，19： | 1 |
| 13 | Improvement on unequal interval gray forecast model 显示文摘 | Wang Fengxiao | 2006 | Fuzzy Information and Engineering2006，6，1： | 1 |
| 14 | Grey Combination Forecast Models Based on Relative Error Minimize 显示文摘 | WANG Fengxiao | 2006 | Journal of Hunan University of Arts and Science2006，18，3： | 1 |
| 15 | Improvement on unequal interval gray forecast model显示文摘 | Wang Fengxiao | 2006 | Fuzzy Information and Engineering2006，6，1： | 1 |
| 16 | Grey combination forecast models based on relative error minimize 显示文摘 | Wang Fengxiao | 2006 | Journal of Hunan University of Arts and Science2006，18，3： | 1 |
| 17 | Nonreciprocal amplification transition in a topological photonic network显示文摘We studied the transport properties of a driven-dissipative photonic network, where multiple photonic cavities are coupled through a nonreciprocal bus with unidirectional transmission. For short-range coupling between the cavities, the occurrence of nonreciprocal amplification can be linked to a topological phase transition of the underlying dynamic Hamiltonian. However, for long-range coupling, we show that the correspondence between the nonreciprocal amplification transition and the topological phase transition breaks down as the transition conditions deviate significantly from each other. We found the exact transition condition for nonreciprocal amplification, supported by analytical calculation and numerical simulation. We also investigated the stability, the crossover from short-to long-range coupling, and the bandwidth of the nonreciprocal amplification. Our work has potential applications in signal transmission and amplification, and also paves the way to study other topological and non-Hermitian systems with long-range coupling and nontrivial boundary effects. | MINGSHENG TIAN FENGXIAO SUN KAIYE SHI HAITAN XU QIONGYI HE WEI ZHANG | 2023 | Photonics Research2023，11，5： | 0 |
| 18 | A new method for preparation of template DNA for PCR from special plant materials显示文摘A simple method for preparation of template DNA suitable for PCR amplification from herbarium samples and plant tissues rich in byproducts, e.g. polysaccha-rides, tannins, polyphenolic, and terpenoids compounds, is described. The total DNA from regular extraction procedure is absorbed by a small amount of glass powder and the final precipitation of glass powder is used directly as a template for PCR. Taking six plant taxa, including the herbarium specimens of Lythraceae collected from Namibia in 1957 and the silicon-dried leaf tissue from mangrove plants (Rhizo-phoraceae and Combretaceae) rich in by-products as examples, the PCR products, including nrDNA ITS regions and cpDNA rbcL gene, amplified following the regular and new methods respectively are compared. Our method provides a simple, rapid and economic approach to purify and prepare template DNA for PCR from special plant materials. | HUANG Yelin SHI Suhua ZHONG Yang TAN Fengxiao | 2002 | Chinese Science Bulletin2002，47，9： | 0 |
| 19 | Prominent genetic structure across native and introduced ranges of Pluchea indica, a mangrove associate, as revealed by microsatellite markers显示文摘阔苞菊(Pluchea indica)是一种红树林伴生植物,以其在原产地的药用特性和部分引入地的入侵性而闻名。本研究旨在评估阔苞菊在其分布范围内遗传变异的地理分布,确定影响其遗传结构的因素,并利用这些信息对阔苞菊在原产地和引入地的保护和管理策略提出建议。我们以来自阔苞菊原产地(亚洲)和引入地(美国)的31个种群共348个个体的15个核微卫星位点数据对阔苞菊的遗传多样性和种群结构进行了评估。在大尺度范围以及局部区域两种空间尺度上对阔苞菊遗传变异的空间格局进行了探讨,并验证了以下假说:地理距离和自然地理屏障将影响种群结构并在空间尺度上产生不同程度的分化。研究结果表明,与所研究区域内的其它红树林物种的遗传多样性参数相比,我们发现阔苞菊在种群水平上具有相对较高的遗传多样性以及在物种水平上具有明显的遗传分化。大多数阔苞菊种群显示杂合子缺失,这主要是由于近交和有限的基因流所导致。在较大空间尺度上进行的种群结构分析显示,该物种自然分布范围内存在两个主要遗传谱系,中国的种群与印度尼西亚、马来西亚、新加坡、泰国、柬埔寨和菲律宾的种群分别属于不同的谱系,而美国的种群可能来自于中国的谱系。此外,在局部区域范围内也同样检测到种群之间的遗传分化。大部分阔苞菊种群所表现出的遗传瓶颈效应强调了其具有本地灭绝的风险。基于上述研究结果,我们建议采用原位保护策略对阔苞菊进行管理,并开展对优先保护种群的保护行动以维持遗传多样性。 | Yuting Lin Achyut Kumar Banerjee Haidan Wu Fengxiao Tan Hui Feng Guangwen Tan Wuxia Guo Yelin Huang | 2020 | Journal of Plant Ecology2020，13，3： | 0 |
| 20 | Exploring noncoding variants in genetic diseases:from detection to functional insights显示文摘Previous studies on genetic diseases predominantly focused on protein-coding variations, overlooking the vast noncoding regions in the human genome. The development of high-throughput sequencing technologies and functional genomics tools has enabled the systematic identification of functional noncoding variants. These variants can impact gene expression, regulation, and chromatin conformation, thereby contributing to disease pathogenesis. Understanding the mechanisms that underlie the impact of noncoding variants on genetic diseases is indispensable for the development of precisely targeted therapies and the implementation of personalized medicine strategies. The intricacies of noncoding regions introduce a multitude of challenges and research opportunities. In this review, we introduce a spectrum of noncoding variants involved in genetic diseases, along with research strategies and advanced technologies for their precise identification and in-depth understanding of the complexity of the noncoding genome. We will delve into the research challenges and propose potential solutions for unraveling the genetic basis of rare and complex diseases. | Ke Wu Fengxiao Bu Yang Wu Gen Zhang Xin Wang Shunmin He Mo-Fang Liu Runsheng Chen Huijun Yuan | 2024 | Journal of Genetics and Genomics2024，51，2： | 0 |
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