|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Enhancement of Fenton oxidation for removing organic matter from hypersaline solution by accelerating ferric system with hydroxylamine hydrochloride and benzoquinone显示文摘Fenton oxidation is generally inhibited in the presence of a high concentration of chloride ions.This study investigated the feasibility of using benzoquinone(BQ) and hydroxylamine hydrochloride(HA) as Fenton enhancers for the removal of glycerin from saline water under ambient temperature by accelerating the ferric system.It was found that organics removal was not obviously affected by chloride ions of low concentration(less than 0.1 mol/L),while the mineralization rate was strongly inhibited in the presence of a large amount of chloride ions.In addition,ferric hydrolysis-precipitation was significantly alleviated in the presence of HA and BQ,and HA was more effective in reducing ferric ions into ferrous ions than HA,while the H_2O_2 decomposition rate was higher in the BQ-Fenton system.Electron spin resonance analysis revealed that OH production was reduced in high salinity conditions,while it was enhanced after the addition of HA and BQ(especially HA).This study provided a possible solution to control and alleviate the inhibitory effect of chloride ions on the Fenton process for organics removal. | Siwei Peng Weijun Zhang Jie He Xiaofang Yang Dongsheng Wang Guisheng Zeng | 2016 | Journal of Environmental Sciences2016，28，3： | 10 |
| 2 | Spectroscopic study on transformations of dissolved organic matter in coal-to-liquids wastewater under integrated chemical oxidation and biological treatment process显示文摘A large amount of wastewater containing various toxic organic contaminants is produced during coal-to-liquids process. In this study, several spectroscopic methods were used to monitor the transformation of organic pollutants during an integrated chemical oxidation and biological process. The results showed that the hydrophobic acid fraction increased after Fenton oxidation, which was likely due to the production of small-molecule organic acids. Soluble microbial products were generated during biological treatment processes,which were degraded after ozonation; meanwhile, the hydrophilic base and acid components increased. Ultraviolet-visible spectroscopic analysis indicated that peaks at the absorption wavelengths of 280 and 254 nm, which are associated with aromatic substances, were detected in the raw water. The aromatic substances were gradually removed, becoming undetectable after biological aeration filter(BAF) treatment. Fourier transform infrared spectroscopy analysis revealed that the functional groups of phenols;benzene, toluene, ethylbenzene, and xylene(BTEX); aromatic hydrocarbons; aliphatic acids;aldehydes; and esters were present in raw wastewater. The organic substances were oxidized into small molecules after Fenton treatment. Aromatic hydrocarbons were effectively removed through bioadsorption and biodegradation after BAF process.Biodegradable organic matter was reduced and finally became undetectable after anoxic–oxic treatment in combination with a membrane bioreactor. Four fluorescent components were fractionated and obtained via excitation–emission matrix parallel factor analysis(EEM-PARAFAC). Dissolved organic matter fractionation in conjunction with EEM-PARAFAC was able to monitor more precisely the evolution of characteristic organic contaminants. | Siwei Peng Xuwen He Hongwei Pan | 2018 | Journal of Environmental Sciences2018，30，8： | 9 |
| 3 | Stratigraphy of the Triassic-Jurassic Boundary Successions of the Southern Margin of the Junggar Basin,Northwestern China显示文摘The Triassic-Jurassic(Tr-J) boundary marks a major extinction event,which(~200 Ma) resulted in global extinctions of fauna and flora both in the marine and terrestrial realms.There prevail great challenges in determining the exact location of the terrestrial Tr-J boundary,because of endemism of taxa and the scarcity of fossils in terrestrial settings leading to difficulties in linking marine and terrestrial sedimentary successions.Investigation based on palynology and bivalves has been carried out over a 1113 m thick section,which is subdivided into 132 beds,along the Haojiagou valley on the southern margin of the Junggar Basin of the northern Xinjiang,northwestern China.The terrestrial Lower Jurassic is conformably resting on the Upper Triassic strata.The Upper Triassic covers the Huangshanjie Formation overlaid by the Haojiagou Formation,while the Lower Jurassic comprises the Badaowan Formation followed by the Sangonghe Formation.Fifty six pollen and spore taxa and one algal taxon were identified from the sediments.Based on the key-species and abundance of spores and pollen,three zones were erected:the Late Triassic(Rhaetian) Aratrisporites-Alisporites Assemblage,the Early Jurassic(Hettangian) Perinopollenites-Pinuspollenites Assemblage,and the Sinemurian Perinopollenites-Cycadopites Assemblage.The Tr-J boundary is placed between bed 44 and 45 coincident with the boundary between the Haojiagou and Badaowan formations.Beds with Ferganoconcha(?),Unio-Ferganoconcha and Waagenoperna-Yananoconcha bivalve assemblages are recognized.The Ferganoconcha(?) bed is limited to the upper Haojiagou Formation, Unio-Ferganoconcha and Waagenoperna-Yananoconcha assemblages are present in the middle and upper members of the Badaowan Formation.The sedimentary succession is interpreted as terrestrial with two mainly lake deposit intervals within Haojiagou and Badaowan formations,yielding fresh water algae and bivalves.However,the presence of brackish water algae Tasmanites and the marine-littoral facies bivalve Waagenoperna from the Badaowan Formation indicate that the Junggar Basin was influenced by sea water caused by transgressions from the northern Tethys,during the Sinemurian. | SHA Jingeng Vivi VAJDA PAN Yanhong Linda LARSSON YAO Xiaogang ZHANG Xiaolin WANG Yaqiong CHENG Xiansheng JIANG Baoyu DENG Shenghui CHEN Siwei PENG Bo | 2011 | Acta Geologica Sinica(English Edition)2011，85，2： | 7 |
| 4 | Geochronology and Petrochemistry of Volcanic Rocks in the Xaignabouli Area, NW Laos显示文摘An integrated study of zircon U-Pb geochronology and petrochemistry, together with zircon Lu-Hf isotopes, has been carried out on the basaltic-andesitic tuff and volcanic breccia from the Nam Hang Formation and andesitic tuff from the Muang-Nan Formation in the Xaignabouli area, which had been mapped as the Permian–Early Triassic on the 1 : 1 000 000 geological map or Late Carboniferous on the 1 : 200 000 geological maps. Zircon U-Pb dating of three samples yielded weighted mean ages of 235±2.6, 232±1.4 and 278±2.8 Ma, respectively, suggesting a Late Triassic origin for the Nam Hang Formation and an Early Permian origin for the Muang-Nan Formation. Geochemically, they are characterized by depletions in HFSEs(e.g., Nb, Ta, Ti) and high LILE/HFSE ratios, and they have positive zircon ε_(Hf)(t) values of 8.7–15.9, which exhibits the continental arc volcanic affinity and partial melting of subducting oceanic slab in the magma source. Combined with spatial occurrence of the volcanic rock and existing geochronological and geochemical data, we suggest that the Xaignabouli-Luang Prabang volcanic belt can be linked to the Loei-Phetchabun belt. The Permian–Triassic volcanic rocks in this belt might be a product of the Nan back-arc basin eastward subduction. | Meifeng Shi Zhenbo Wu Shusheng Liu Zhimin Peng Linnan Guo Fei Nie Siwei Xu | 2019 | Journal of Earth Science2019，30，1： | 6 |
| 5 | Trends in Incidence Rates,Mortality Rates,and Age-Period-Cohort Effects of Cervical Cancer—China,2003–2017显示文摘Introduction:This study reported the trends and analyzed the age-period-cohort effects on the incidence and mortality rates of cervical cancer in China.Methods:The age-standardized incidence rate(ASIR)and mortality rate(ASMR)by Segi’s world standard population were calculated using qualified consecutive data from 22 cancer registries from 2003 to 2017 in China.We performed joinpoint analysis to describe the trends and age-period-cohort analysis to estimate the independent effects of age,period and cohort on trends in incidence and mortality rates of cervical cancer.Results:The ASIR and ASMR for cervical cancer in females over 20 years old increased during 2003−2017.For females<50 years,a decreasing trend in ASIR and a stable trend in ASMR were observed in urban areas after 2009.But the ASIR and ASMR kept increasing in rural areas during the whole period.For females>50 years,the ASIR and ASMR increased both in urban and rural areas.Age-period-cohort analysis showed increasing period effects on cervical cancer incidence and mortality during the whole period.The cohort effects exhibited a downward-upwarddownward pattern for the incidence(1918–1938,1938–1963,1963–1993)and mortality rates(1918–1943,1943–1963,1963–1993)in urban areas,a fluctuating pattern for incidence rate and a continuing downward pattern for mortality rate(1918–1993)in rural areas.Conclusions:The increases in cervical cancer incidence and mortality rates can be mostly explained by period effects.We observed decreases in risk for cervical cancer incidence and mortality in young female generations,which were more obvious in urban areas. | Kexin Sun Rongshou Zheng Lin Lei Siwei Zhang Hongmei Zeng Shaoming Wang Li Li Ru Chen Bingfeng Han Ji Peng Wenqiang Wei Jie He | 2022 | China CDC weekly2022，4，48： | 4 |
| 6 | National Cancer Data Linkage Platform of China:Design,Methods,and Application显示文摘Background:The National Cancer Center(NCC)and China CDC cooperatively designed a National Cancer Data Linkage(NCDL)Platform to fulfill the task of sharing cancer outcome data through an automatic web-based system.Methods:NCC and China CDC established a web-based NCDL Platform to link death information from China CDC with the cancer database from NCC.Overall,76,708 cancer patients’data were analyzed to assess the feasibility and match rate of the NCDL Platform for 7 major cancers.Results:The function of the platform includes a data application and approval system,data linkage module,and results visualization system.Through the platform,38.9%cases were identified as deaths cases from the NCDL Platform in the first 3 years after cancer diagnosis.The linkage rate was highest in liver cancer and lowest in breast cancer.Conclusions:The NCDL Platform provides a powerful and efficient way to link national vital statistics with national cancer programs’data.Expanding cancer outcome data linkage may not only improve data collection efficiency,but also improve data use. | Hongmei Zeng Yunning Liu Lijun Wang Peng Yin Baohua Wang Ruiying Fu Xianhui Ran Rongshou Zheng Siwei Zhang Jiangmei Liu Jinling You Kexin Sun Shaoming Wang Li Li Ru Chen Wenqiang Wei Maigeng Zhou Jing Wu Jie He | 2022 | China CDC weekly2022，4，13： | 1 |
| 7 | Sol–gel preparation and enhanced photocatalytic performance of Cu-doped ZnO nanoparticles显示文摘 | Min Fu Yalin Li Siwei wu Peng Lu Jing Liu Fan Dong | 2011 | Applied Surface Science2011，，4： | 1 |
| 8 | Trends in Incidence Rates,Mortality Rates,and Age-Period-Cohort Effects of Female Breast Cancer—China,2003-2017显示文摘Introduction:This study reported the trends in female breast cancer incidence and mortality rates in China,and analyzed the corresponding age-periodcohort effects.Methods:Data from 22 population-based cancer registries in China between 2003 and 2017 were analyzed.Age-standardized incidence rates(ASIR)and mortality rates(ASMR)were calculated using Segi’s world standard population.Joinpoint regression was employed to evaluate trends,and age-period-cohort effects were examined using the intrinsic estimator method.Results:The ASIR for female breast cancer exhibited a more rapid increase in rural areas compared to urban areas across all age groups.The most substantial increase was observed in the 20-34 age group in rural areas[annual percent change(APC)=9.0%,95%confidence interval(CI):7.0%-11.0%,P<0.001].The ASMR for females under 50 years old remained stable from 2003 to 2017 in both urban and rural areas.However,the ASMR for females over 50 in rural areas and those over 65 in urban areas demonstrated a significant increase,with the most pronounced increase observed among females over 65 in rural areas(APC=4.9%,95%CI:2.8%-7.0%,P<0.001).Age-period-cohort analysis revealed increasing period effects and decreasing cohort effects for female breast cancer incidence and mortality rates in both urban and rural settings.Notably,the cohort effect for incidence displayed a slight upward trend for females born between 1983 and 1992 in rural areas.Conclusions:Our study revealed a rapid increase in breast cancer incidence among younger generations and an accelerated mortality rate in older populations residing in rural areas.To effectively address the growing burden of female breast cancer in China,it is essential to develop and implement targeted intervention strategies. | Kexin Sun Lin Lei Rongshou Zheng Siwei Zhang Hongmei Zeng Shaoming Wang Li Li Ru Chen Bingfeng Han Ji Peng Wenqiang Wei Jie He | 2023 | China CDC weekly2023，5，15： | 1 |
| 9 | Genetics of Cordyceps and related fungi显示文摘 | Peng Zheng Yongliang Xia Siwei Zhang | 2013 | Applied Microbiology and Biotechnolo- gy2013，97，7： | 1 |
| 10 | Efficient and economical access to substituted benzothiazoles:coppercatalyzed coupling of 2-haloanilides with metal sulfides and subsequent condensation显示文摘 | MA Dawei XIE Siwei PENG Xue | 2009 | Angew Chem Int Ed2009，48，23： | 1 |
| 11 | How to measure software flexibility显示文摘 | PENG Siwei SHEN Limin LIU Hui | 2011 | ICIC Express Letters2011，4，5： | 1 |
| 12 | A test model of software flexibility based on flexible point显示文摘 | SHEN Limin PENG Siwei LIU Hui | 2011 | ICIC Express Letters2011，9，5： | 1 |
| 13 | The structure of WbnH in a near active state显示文摘 | Fengzhi Li Siwei Li Xiaofen Liu Xue Yang Peng Wang Yuequan Shen | 2015 | Protein & Cell2015，6，8： | 1 |
| 14 | Berberine alleviates non-alcoholic hepatic steatosis partially by promoting SIRT1 deacetylation of CPT1A in mice显示文摘Background:Berberine effectively alleviates non-alcoholic fatty liver disease(NAFLD).Nevertheless,the mechanism is incompletely comprehended.It has been reported that SIRT1 mediates lipid metabolism in liver and berberine promotes the expression of SIRT1 in hepatocytes.We hypothesized that SIRT1 mediated the effect of berberine on NAFLD.Methods:The effects of berberine on NAFLD were evaluated in C57BL/6J mice fed a high-fat diet(HFD)and in mouse primary hepatocytes and cell lines exposed to palmitate.The change of fatty acid oxidation(FAO)and the activity of CPT1A were observed in HepG2 cells.Quantitative real-time polymerase chain reaction and Western blot were employed to observe the expression of SIRT1 and lipid metabolism-related molecules.The interaction between SIRT1 and CPT1A was investigated by using co-immunoprecipitation assay in HEK293T cells.Results:Berberine treatment attenuated hepatic steatosis,reduced triglyceride(190.1611.2 lmol/g liver vs 113.667.6 lmol/g liver,P<0.001)and cholesterol(11.362.5 lmol/g liver vs 6.360.4 lmol/g liver,P<0.001)concentration in the liver,and improved lipid and glucose metabolism disorders compared with the HFD group.The expression of SIRT1 was reduced in the liver of NAFLD patients and mouse models.Berberine increased the expression of SIRT1 and promoted the protein level of CPT1A and its activity in HepG2 cells.SIRT1 overexpression mimicked the effect of berberine on reducing triglyceride levels in HepG2 cells,whereas SIRT1 knock-down attenuated the effect of berberine.Mechanistically,berberine increased the expression of SIRT1.SIRT1 deacetylated CPT1A at the Lys675 site,which suppressed its ubiquitin-dependent degradation,thereby promoting FAO and alleviating non-alcoholic liver steatosis.Conclusions:Berberine promoted SIRT1 deacetylation of CPT1A at the Lys675 site,which reduced the ubiquitin-dependent degradation of CPT1A and ameliorated non-alcoholic liver steatosis. | Peng Wang Ruikai Li Yuqi Li Siwei Tan Jie Jiang Huiling Liu Xiuqing Wei | 2023 | Gastroenterology Report2023，11，1： | 0 |
| 15 | Cultivation of New Breeds of Guizhou Heima Goat显示文摘To culture new breeds of Guizhou Heima goat,establishing open nucleus breeding system in farm was adopted to develop comprehensive selection index and establish BLUP model to estimate breeding value,so as to guide assortative mating and selection improvement.The results showed that the body weights of yearling ram and ewe in nucleus herd were(29.77±5.51) kg and(25.18±5.67) kg,while those of adult ram and adult ewe were(40.08±7.73) kg and(34.90± 6.56) kg,respectively; the body weights of yearling ram and ewe in basic herd were(26.59±3.68) kg and(24.09±4.60) kg,while those of adult ram and adult ewe were(35.33±4.09) kg and(32.16±6.83) kg,respectively; the lambing rate was 152.33%; the slaughter rate was 48.50%,and the net meat rate was 38.94%.New breeds of Guizhou Heima goat had significantly improved production performance and breed uniformity,with stable genetic performance. | Song Derong Wang Jiafu Zhou Darong Peng Hua Yang Siwei Jiang Xingmei Wu Ruiru | 2014 | Animal Husbandry and Feed Science2014，6，1： | 0 |
| 16 | Mechanism of N-to-S acyl transfer of N-(2-hydroxybenzyl) cysteine derivatives and origin of phenol acceleration effect显示文摘N-(2-Hydroxybenzyl)cysteine derivatives were recently disclosed to be efficient crypto-thioesters for native chemical ligation(NCL). To elucidate the mechanism of the relevant N-to-S acyl transfer process as well as the origin of the acceleration effect of the phenol substitutes, a density functional theory(DFT)study was performed. It was found that the N-to-S acyl transfer of N-(2-hydroxybenzyl)cysteine derivatives involve four major steps: concerted nucleophilic addition of thiolate/proton transfer,inversion of an amine moiety, water-assisted proton transfer and CààN bond cleavage. The phenol substitutes promote the nucleophilic addition of thiolate by protonating the carbonyl oxygen atom synergistically and the proton transfer from hydroxyl to amide nitrogen atom is the rate-determining step of the N-to-S acyl transfer. By contrast, changing the phenolic hydroxyl to methoxyl was found to significantly slow down the nucleophilic addition of thiolate and thus hinders the N-to-S acyl transfer overall. These computational results are consistent with the observation of previously reported control experiments, by which our proposed mechanism is further validated. | Siwei Bi Peng Liu Baoping Ling Xiangai Yuan Yuanye Jiang | 2018 | Chinese Chemical Letters2018，29，8： | 0 |
| 17 | Stacking driven Raman spectra change of carbon based 2D semiconductor C_(3)N显示文摘As a two-dimensional carbon based semiconductor,C_(3)N acts as a promising material in many application areas.However,the basic physical properties such as Raman spectrum properties of C_(3)N is still not clear.In this paper,we clarify the Raman spectrum properties of multilayer C_(3)N.Moreover,the stacking driven Raman spectra change of multilayer C_(3)N is also discussed. | Yucheng Yang Wenya Wei Peng He Siwei Yang Qinghong Yuan Guqiao Ding Zhi Liu Xiaoming Xie | 2022 | Chinese Chemical Letters2022，33，5： | 0 |
| 18 | Atomically dispersed lr/α-MoC catalyst with high metal loading and thermal stability for water-promoted hydrogenation reaction显示文摘Synthesis of atomically dispersed catalysts with high metal loading and thermal stability is challenging but particularly valuable for industrial application in heterogeneous catalysis.Here,we report a facile synthesis of a thermally stable atomically dispersed Ir/α-MoC catalyst with metal loading as high as 4 wt%,an unusually high value for carbide supported metal catalysts.The strong interaction between Ir and theα-MoC substrate enables high dispersion of Ir on the α-MoC surface,and modulates the electronic structure of the supported Ir species.Using quinoline hydrogenation as a model reaction,we demonstrate that this atomically dispersed Ir/α-MoC catalyst exhibits remarkable reactivity,selectivity and stability,for which the presence of high-density isolated Ir atoms is the key to achieving high metal-normalized activity and mass-specific activity.We also show that the water-promoted quinoline hydrogenation mechanism is preferred over the Ir/α-MoC,and contributes to high sele ctivity towards 1,2,3,4-tetrahydroquinoline.The present work demonstrates a new strategy in constructing a high-loading atomically dispersed catalyst for the hydrogenation reaction. | Siwei Li Ruochen Cao Mingquan Xu Yuchen Deng Lili Lin Siyu Yao Xuan Liang Mi Peng Zirui Gao Yuzhen Ge Jin-Xun Liu Wei-Xue Li Wu Zhou Ding Ma | 2022 | National Science Review2022，9，1： | 0 |
| 19 | HfO_(2)-based ferroelectric thin film and memory device applications in the post-Moore era:A review显示文摘The rapid development of 5G,big data,and Internet of Things(IoT)technologies is urgently required for novel non-volatile memory devices with low power consumption,fast read/write speed,and high reliability,which are crucial for high-performance computing.Ferroelectric memory has undergone extensive investigation as a viable alternative for commercial applications since the post-Moore era.However,conventional perovskite-structure ferroelectrics(e.g.,PbZr_(x)Ti_(1-x)O_(3))encounter severe limitations for high-density integration owing to the size effect of ferroelectricity and incompatibility with complementary metal-oxide-semiconductor technology.Since 2011,the ferroelectric field has been primarily focused on HfO_(2)-based ferroelectric thin films owing to their exceptional scalability.Several reviews discussing the control of ferroelectricity and device applications exist.It is believed that a comprehensive understanding of mechanisms based on industrial requirements and concerns is necessary,such as the wake-up effect and fatigue mechanism.These mechanisms reflect the atomic structures of the materials as well as the device physics.Herein,a review focusing on phase stability and domain structure is presented.In addition,the recent progress in related ferroelectric memory devices and their challenges is briefly discussed. | Jiajia Liao Siwei Dai Ren-Ci Peng Jiangheng Yang Binjian Zeng Min Liao Yichun Zhou | 2023 | Fundamental Research2023，3，3： | 0 |
| 20 | Research Progress of Gene Polymorphism of Guizhou Black Goat显示文摘Guizhou black goat is the second-largest breed of goat in Guizhou,an important part of ecosystem of karst region. Constructing cladogram of black goat and Guizhou local goat with molecular biological technique,we found some functional genes related to reproduction and growth of black goat,such as FSHR,LHβ,GDF9,MSTN,POU1F1,GFI1 B,etc. In view of the genetic relations between Guizhou black goat and other local goats,we reviewed the research status and progress of gene polymorphism of FSHR,LHβ,GDF9,MSTN,POU1F1,GFI1 B,and prospected the research field of molecular properties of the breed resource. | Song Derong Wang Qiwen Shen Xiaoyun Zhou Darong Peng Hua Yang Siwei | 2015 | Animal Husbandry and Feed Science2015，7，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员