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| 1 | Bariatric surgery in patients with non-alcoholic fatty liver disease-from pathophysiology to clinical effects显示文摘Non-alcoholic fatty liver disease(NAFLD) is increasingly recognized as a significant liver disease,and it covers the disease spectrum from simple steatosis with a risk of development of non-alcoholic steatohepatitis(NASH) to fibrosis,subsequent cirrhosis,end-stage liver failure,and liver cancer with a potential need for liver transplantation.NAFLD and NASH are closely related to obesity,metabolic syndrome,and type 2 diabetes(T2 D).The role of gut hormones,especially glucagon-like peptide 1(GLP-1),is important in NAFLD.Bariatric surgery has the potential for inducing great weight loss and may improve the symptoms of metabolic syndrome and T2 D.Recent data demonstrated significant effects of bariatric surgery on GLP-1 and other gut hormones and important lipid metabolic and inflammatory abnormalities in the pathophysiology of NAFLD.Therefore,bariatric surgery may reverse the pathological liver changes in NAFLD and NASH patients.In the present review,we describe NAFLD and NASH pathophysiology and the primary effects of bariatric surgery on metabolic pathways.We performed a systematic review of the beneficial and harmful effects and focused on changes in liver disease severity in NAFLD and NASH patients.The specific focus was liver histopathology as assessed by the invasive liver biopsy.Additionally,we reviewed several non-invasive methods used for the assessment of liver disease severity following bariatric surgery. | Tea L Laursen Christoffer A Hagemann Chunshan Wei Konstantin Kazankov Karen L Thomsen Filip K Knop Henning Grønbæk | 2019 | World Journal of Hepatology2019，11，2： | 11 |
| 2 | Gluconeogenesis during starvation and refeeding phase is affected by previous dietary carbohydrates levels and a glucose stimuli during early life in Siberian sturgeon(Acipenser baerii)显示文摘Gluconeogenesis responses was assessed during a short starvation period and subsequent refeeding in Siberian sturgeon(Acipenser baerii) previously fed different dietary carbohydrates levels and experienced to a glucose stimuli during early life. The sturgeon larvae were previously fed either a high glucose diet(G) or a low glucose diet(F) from the first feeding to yolk absorption(8 to 12 d post-hatching [dph]). Each group of fish was sub-divided into 2 treatments at 13 dph and was fed either a high-carbohydrate diet(H) or a low carbohydrate diet(L) until 20 wk. In the current study, the fish in 4 groups(GL, FL, GH and FH) were experienced to starvation for 21 d following by re-feeding of their corresponding diets for 21 d.Fish were sampled at postprandial 6 and 24 h before starvation(P6 h and P24 h), starvation 7,14 and 21 d(S7, S14 and S21) and 1, 7,14 and 21 d during refeeding(R1, R7, R14 and R21). Plasma samples during refeeding were taken at P6 h at each time point. Glycaemia levels, liver and muscle glycogen contents,activities and mRNA levels of hepatic gluconeogenic enzymes were examined. We found that both dietary carbohydrate levels and early glucose stimuli significantly affected the metabolic responses to starvation and refeeding in Siberian sturgeon(P < 0.05). During prolonged starvation, Siberian sturgeon firstly mobilized the liver glycogen and then improved gluconeogenesis when the dietary carbohydrates were abundant, whereas preserved the liver glycogen stores at a stable level and more effectively promoted gluconeogenesis when the dietary carbohydrates are absent to maintain glucose homoeostasis.During refeeding, as most teleostean, Siberian sturgeon failed controlling the activities and mRNA levels of phosphoenolpyruvate carboxykinase cytosolic forms(PEPCK-C), fructose-1,6-bisphosphatase(FBPase),but particularly controlled phosphoenolpyruvate carboxykinase mitochondrial forms(PEPCK-M) activities and mRNA expression of glucose-6-phosphatase(G6 Pase, except in GL group). Siberian sturgeon has a full compensatory ability on growth, but this ability would be obstructed by early glucose stimuli when refeeding the low carbohydrate diet after S21. | Xiaofang Liang Jia Wang Guan Gong Min Xue Yingchao Dong Xiufeng Wu Xin Wang Chunshan Chen Xufang Liang Yuchang Qin | 2017 | Animal Nutrition2017，，3： | 8 |
| 3 | Spatial-temporal Characteristics and Factors Influencing Commuting Activities of Middle-class Residents in Guangzhou City, China显示文摘The middle class in metropolitan Chinese cities has become an important social group. With the rapid development of urbanization and constant advancement of suburbanization, the middle class has increasingly come to influence city traffic. Research into middle-class commuting activities thus has practical significance for improving traffic congestion and reducing the commuting burden in metropolitan cities. Based on a dataset formed by 816 completed surveys, this paper analyzes the commuting mode, time and distance of middle-class residents in Guangzhou City using the descriptive statistical method. The results indicate that private cars are the main commuting mode, followed by public transport. Meanwhile, middle-class residents mainly undertake medium-short time and medium-short distance commuting. The study subsequently uses multilevel logistic regression and multiple linear regression models to analyze the factors that influence commuting mode choice, time and distance. The gender, age, number of family cars, housing source and jobs-housing balance are the most important factors influencing commuting mode choice; housing, population density, jobs-housing balance and commuting mode significantly affect commuting time; and transport accessibility, jobs-housing balance and commuting mode are the notable factors affecting commuting distance. Finally, this paper analyzes what is affecting the commuting activities of middle-class residents and determines the differences in commuting activity characteristics and influence factors between middle-class and ordinary residents. Policy suggestions to improve urban planning and urban management are also proposed. | DAI Dandan ZHOU Chunshan YE Changdong | 2016 | Chinese Geographical Science2016，26，3： | 7 |
| 4 | Effects of coal damage on permeability and gas drainage performance显示文摘Coal permeability is a measure of the ability for fluids to flow through coal structures. It is one of the most important parameters affecting the gas drainage performance in underground coal mines. Despite the extensive research conducted on coal permeability, few studies have considered the effect of coal damage on permeability. This has resulted in unreliable permeability evaluation and prediction. The aim of this study is to investigate the effect of coal damage on permeability and gas drainage performance. The Cui-Bustin permeability model was improved by taking into account the impact of coal damage on permeability. The key damage coefficient of the improved permeability model is determined based on the published permeability data. A finite-element numerical simulation was then developed based on the improved permeability model to investigate the damage areas and the permeability distribution around roadway. Results showed that the tensile failure occurs mainly on the upper and lower sides of the roadway while the shear failure symmetrically occurs on the left and right sides. With the increase in the friction angle value, the damage area becomes small. A good agreement was obtained between the results of the improved permeability model(c = 3) and the published permeability data. This indicated a more accurate permeability prediction by the improved permeability model. It is expected that the findings of this study could provide guidance for in-seam gas drainage borehole design and sealing, in order to enhance the gas drainage performance and reduce gas emissions into underground roadways. | Zheng Chunshan Mehmet Kizil Chen Zhongwei Saiied Aminossadati | 2017 | International Journal of Mining Science and Technology2017，27，5： | 6 |
| 5 | Highly selective and stable hydrogenation of heavy aromatic-naphthalene over transition metal phosphides显示文摘The present study reports a highly selective and stable catalytic approach for producing tetralin, an important chemical, solvent, and H2 storage material. Transition metal phosphides(Mo P, Ni2 P, Co2 P, and Fe2P) were prepared by wet impregnation and temperature-programmed reduction and characterized by X-ray diffraction(XRD), energy dispersive X-ray spectroscopy(EDX), EDX mapping, scanning electron microscopy(SEM), transmission electron microscopy(TEM), brunauer-emmettteller(BET), temperature-programmed desorption of ammonia(NH3-TPD), and fourier transform infrared spectroscopy of pyridine(pyridine-FTIR). Of all the transition metal phosphides Mo P was formed at a lower reduction temperature, which resulted in smaller particle size that enhanced the overall surface area of the catalyst. The existence of weak, moderate, and Lewis acidic sites over Mo P were responsible for its high tetralin selectivity(90%) and stability during the 100 h reaction on-stream in a fixed-bed reactor. | Muhammad Usman Dan Li Chunshan Li Suojiang Zhang | 2015 | Science China Chemistry2015，58，4： | 5 |
| 6 | One-pot synthesis of the highly efficient bifunctional Ni-SAPO-11 catalyst显示文摘Hydro isomerization of linear alkanes to branched isomers is an important petrochemical process for production of gasoline with high octane number.Non-noble metal bifunctional catalysts used in this process always suffer from low metal dispersion and poor metal-acid synergy.Herein,a facile one-pot synthesis method was used to simultaneously regulate metal particle sizes and acidity of the Ni-SAPO-11 hydroisomerization catalyst.The physicochemical properties are investigated using XANES,EXAFS,TEM/STEM,FT-IR,XPS,UV-vis and NH_3-TPD.Apart from the highly dispersed nickel nanoparticles with an average diameter of 8 nm,the framework Ni~(2+)ions are generated via substituting framework Al~(3+)ions of the SAPO-11.The formed NiP-OH structures have lower deprotonation energy(DPE)than the SiAl-OH ones,contributing more and stronger acid sites to the Ni-SAPO-11 catalyst.The great metal-acid synergy including high metal to acid sites ratio(n_(Ni)/n_A)and close intimacy is obtained for the Ni-SAPO-11 catalyst.The Ni-SAPO-11 catalyst outperforms the counterpart prepared by the impregnation method and exhibits comparable activity and isomers selectivity to the Pt/SAPO-11 catalyst in the n-hexane hydroisomerization. | Yuchao Lyu Weilong Zhan Zhumo Yu Xinmei Liu Ye Yang Xiaoxing Wang Chunshan Song Zifeng Yan | 2021 | Journal of Materials Science & Technology2021，，17： | 4 |
| 7 | Impact of Shipping Distance on Online Retailers' Sales:A Case Study of Maiyang on Tmall显示文摘Many studies have qualitatively explained that information and communication technology(ICT) has loosened the restrictions of distance and space on retailers' sales. Few empirical studies, however, have explored the impact of shipping distance on online retailers' sales. This study examined the Maiyang(M-Y) store on Tmall in China as a case study to investigate the relationship between shipping distance and sales. The results showed that sales volume in 2014 at the county level did not strictly obey the distance decay law. The shipped distance of high-priced commodities may not be much longer than that of low-priced commodities. Within the scope of investigation, the relationships between income, cost, and net profit curves do not follow central place theory. Goods have neither thresholds nor ranges. The key factor in the spatial discrepancy of sales is the size of market. The impact of shipping distance on sales is not as strong as that of traditional retailers in Information Era. | ZHOU Chunshan JIN Wanfu ZHANG Guojun | 2018 | Chinese Geographical Science2018，28，2： | 4 |
| 8 | In-situ generated ionic liquid catalyzed aldol condensation of trioxane with ester in mild homogeneous system显示文摘α, β-unsaturated esters were often synthesized from aldehydes and esters in the presence of strong organic base that was very sensitive to air and moisture via aldol reaction. Trioxane was very useful C1 resource, however, the decomposition of it was always the challenging problem that facing researchers. Herein, a novel synthetic methodology for α, β-unsaturated ester preparation from trioxane and ester with mild catalysis of generated ammonium trifluoromethanesulfonate ionic liquid. The enolization of ester as well as the decomposition of trioxane could proceed easily in the presence of boryl trifluoromethanesulfonate and amine at 20–25℃. Then the enolate and decomposed formaldehyde occurs aldol reaction to form α, β-unsaturated ester. With this strategy, the yield and selectivity of product from various substrates including aliphatic esters,lactones and thioester could reach up to 85.2% and 90.1%. | Gang Wang Zengxi Li Chunshan Li Suojiang Zhang | 2019 | Green Energy & Environment2019，4，3： | 4 |
| 9 | Silver modified Cu/SiO2 catalyst for the hydrogenation of methyl acetate to ethanol显示文摘A series of silver modified Cu/SiO2 catalysts were synthesized with ammonia-evaporation method and applied in vapor-phase hydrogenation of methyl acetate to ethanol.The influence of additive‘Ag’on the structural evolution of catalyst was systematically studied by several characterization techniques,such as N2 adsorption–desorption,N2O titration,PXRD,FTIR,in-situ FTIR,H2-TPR,H2-TPD,XPS and TEM.Results showed that incorporation of a small amount of Ag could enhance the structural stability,and the strong interaction between Cu and Ag species was conducive to increase the dispersion of copper species and create a suitable Cu+/(Cu0+Cu+)ratio,which was proposed to be responsible for the improved catalytic activity.The maximum conversion of MA(94.1%)and selectivity of ethanol(91.3%)over optimized Cu-0.5 Ag/SiO2 and 120 h on stream without deactivation under optimal conditions demonstrates its excellent stability. | Zhiheng Ren Muhammad Naeem Younis Hui Zhao Chunshan Li Xiangui Yang Erqiang Wang Gongying Wang | 2020 | Chinese Journal of Chemical Engineering2020，28，6： | 4 |
| 10 | An overview of new approaches to deep desulfurization for ultra-clean gasoline, diesel fuel and jet fuel显示文摘 | Chunshan Song | 2003 | Catalysis Today2003，，1： | 3 |
| 11 | Spatial control of palladium nanoparticles in flexible click-based porous organic polymers for hydrogenation of olefins and nitrobenzene显示文摘二灵活基于按的多孔的器官的聚合物(CPP-F1 和 CPP-F2 ) 乐意地被综合了。SEM 图象证明 CPP-F1 是一个 3D 网络,当 CPP-F2 展出小粒的形态学时。Pd (OAc )< 潜水艇 class= “ a-plus-plus ” > 2 能容易被合并到 CPP-F1 和 CPP-F2 分别地形成 Pd@CPP-F1 和 Pd@CPP-F2。在聚合物和钯之间的相互作用被证实由固态 < 啜 class= “ a-plus-plus ” > 13 C NMR,红外和 XPS。护卫 nanoparticles (NP ) 在石蜡和硝基苯的加氢以后被形成。在 CPP-F1 的护卫 NP 很好在聚合物的外部表面上被驱散,当在 CPP-F2 的钯 NP 位于内部毛孔并且在外部表面上时。与在 CPP-F1 的 NP 比较,在 CPP-F2 的钯 NP 的双分发在 1,3-cyclohexadiene 的加氢导致更高的选择到环己烷。没有催化活动的明显的损失或钯 NP 的凝块,催化系统能若干次被再循环。热过滤,水银落下测试和 ICP 分析建议催化系统经由一条异构的小径继续。 | Liuyi Li | 2015 | Nano Research2015，8，3： | 3 |
| 12 | Role of silicon in steels on galvanized coatings显示文摘In this article,five kinds of silicon-containing steel sheets have been electrodeposited,and then immersed in a pure molten zinc bath at 450 °C for various periods of time.The results by scanning electron microscopy(SEM) show that the coating of the sam-ple(0.09 wt pct Si) with iron-electrodeposited pretreatment eliminates the reactive zones which are found in the coating without iron-electrodeposited pretreatment.The galvanized sample(0.28 wt pct Si) with iron-electrodeposited pretreatment exhibits a compact and coherent coating.The coating of the sample(0.37 wt pct Si) with the iron-electrodeposited pretreatment experiences a transition from a compact and coherent coating to a reactive one.The energy dispersive spectrum(EDS) results reveal that for the galvanized samples with iron-electrodeposited pretreatment,ex-cessive silicon accumulates on the surface of the substrate due to the low solubility of silicon in the Γ,after the iron layer is depleted by the increasing growth of the Fe-Zn intermetallics.With the movement of the substrate/Γ interface toward the substrate,silicon-enriched α-Fe peels off from the substrate and breaks into the particles.The particles move toward the δ layer through the Γ layer because silicon-enriched α-Fe cannot be absorbed in the Γ layer.When the particles reach the δ/Γ interface,they are dissolved in the δ layer,making the Γ layer thin or even vanish. | Chunshan CHE Jintang LU Gang KONG Qiaoyu XU | 2009 | Acta Metallurgica Sinica(English Letters)2009，22，2： | 3 |
| 13 | Sorghum Insect Problems and Management显示文摘Sorghum (Sorghum bicolor) has high levels of starch,sugar,and fiber and is one of the most important energy crops in the world.Insect damage is one of the challenges that impacts sorghum biomass production.There are at least 150 insect species that can infest sorghum varieties worldwide.These insects can complete several generations within a growing season,they target various parts of sorghum plants at developmental stages,and they cause significant biomass losses.Genetic research has revealed the existence of resistant genetics in sorghum and insect tolerant sorghum varieties have been identified.Various control methods have been developed,yet more effective management is needed for increasing sorghum biomass production.Although there are no transgenic sorghum products on the market yet,biotechnology has been recognized as an important tool for controlling insect pests and increasing sorghum production. | Chunshan Guo Wei Cui Xue Feng Jianzhou Zhao Guihua Lu | 2011 | Journal of Integrative Plant Biology2011，53，3： | 3 |
| 14 | The Genetic Diversity Study of Wild Wusuli Raccoon Dog From Nenjiang District显示文摘The ISSR method was developed to analyze the genetic diversity of 20 wild Wusuli raccoon dog from Nenjiang district. The results showed that there were significant genetic diversity and high polymorphism among individuals of the wild Wusuli raccoon dog. A total of 41 DNA bands were amplified by 9 primers, and 37 of them were polymorphism, the proportion of polymorphism was 90.24%, 2-8 polymorphism bands could be amplified by each primer, and 4.56 on average, the length of the product was 200-2 000 bp. | YANG Chunshan BAI Xiujuan | 2008 | Journal of Northeast Agricultural University(English Edition)2008，15，3： | 3 |
| 15 | CO2 capture over molecular basket sorbents:Effects of SiO2 supports and PEG additive显示文摘The objective of this work is to study the influences of silica supports and PEG additive on the sorption performance of molecular basket sorbent(MBS) for CO_2 capture consisting of polyethylenimine and one of the following supports: SBA-15(2-D structure), TUD-1(3-D sponge-like structure) and fumed silica HS-5(3-D disordered structure). Effects of the supports regarding pore structures and pore properties, the PEI loading amount as well as the sorption temperature were examined. Furthermore, polyethylene glycol(PEG) was introduced as an additive into the sorbents and its effect was investigated at different PEI loadings and sorption temperatures. The results suggest that the pore properties of MBS(after PEI loading) play a more important role in the CO_2 sorption capacity, rather than those of the supports alone.MBS with 3D pore structure exhibits higher CO_2 sorption capacity and amine efficiency than those with 2D-structured support. Among the sorbents studied, fumed silica(HS-5) based MBS showed the highest CO_2 sorption capacity in the temperature range of 30-95 °C, probably due to its unique interstitial pores formed by the aggregation of polymer-loaded SiO_2 particles. It was found that the temperature dependence is directly related to the PEI surface coverage layers. The more PEI surface coverage layers, the higher diffusion barrier for CO_2 and the stronger temperature dependence of CO_2 capacity. 3D MBS exceeds 2D MBS at the same PEI coverage layers due to lower diffusion barrier. Adding PEG can significantly enhance the CO_2 sorption capacity and improve amine efficiency of all MBS, most likely by alleviating the diffusion barrier within PEI bulk layers through the inter-molecular interaction between PEI and PEG. | Lin Zhang Xiaoxing Wang Mamoru Fujii Linjun Yang Chunshan Song | 2017 | Journal of Energy Chemistry2017，26，5： | 3 |
| 16 | A resource recycling technique of hydrogen production from the catalytic degradation of organics in wastewater显示文摘A resource recycling technique of hydrogen production from the catalytic degradation of organics in wastewater by aqueous phase reforming (APR) has been proposed. It is worthy of noting that this technique may be a potential way for the purification of refractory and highly toxic organics in water for hydrogen production. Hazardous organics (such as phenol, aniline, nitrobenzene, tetrahydrofuran (THF), toluene, N,N-dimethylformamide (DMF) and cyclohexanol) in water could be completely de-graded into H2 and CO2 with high selectivity over Raney Ni, and Sn-modified Raney Ni (Sn-Raney-Ni) or Pd/C catalyst under mild conditions. The experimental results operated in tubular and autoclave reactors, indicated that the degradation degree of organics and H2 selectivity could reach 100% under the optimal reaction conditions. The Sn-Raney-Ni (Sn/Ni=0.06) and Pd/C catalysts show better catalytic performances than the Raney Ni catalyst for the degradation of organics in water into H2 and CO2 by the aqueous phase reforming process. | LI XiaoNian KONG LingNiao XIANG YiZhi JU YaoMing WU XiaoQiong FENG Feng YUAN JunFeng MA Lei LU ChunShan ZHANG QunFeng | 2008 | Science China Chemistry2008，51，11： | 2 |
| 17 | Analysis on the multi-phase flow characterization in cross-measure borehole during coal hydraulic slotting显示文摘Hydraulic slotting in a gas drainage borehole is an effective method of enhancing gas drainage performance. However, it frequently occurs that a large amount of slotting products(mainly the coal slurry and gas) intensely spurt out of the borehole during the slotting, which adversely affects the slotting efficiency. Despite extensive previous investigations on the mechanism and prevention-device design of the spurt during ordinary borehole drilling, a very few studies has focused on the spurt in the slotting process. The slotting spurt is mainly caused by two reasons: the coal and gas outburst in the borehole and the borehole deslagging blockage. This paper focuses on the second reason, and investigates the hydraulic deslagging flow patterns in the annular space between the drill pipe and borehole wall.Results show that there are six deslagging flow patterns when the drill pipe is still: pure slurry flow, pure gas flow, bubble flow, intermittent flow, layering flow and annular flow. When the drill pipe rotates, each of those six flow patterns changes due to the Taylor vortex effect. Outcomes of this study could help to better understand the slotting-spurt mechanism and provide guidance on the anti-spurt strategies through eliminating the borehole deslagging blockage. | Chunshan Zheng Baiquan Lin Mehmet S.Kizil Saiied M.Aminossadati He Li Zhongwei Chen | 2018 | International Journal of Mining Science and Technology2018，28，4： | 2 |
| 18 | Luminescent properties of Eu and Tb in SrB_(6)O_(10) matrix显示文摘MOST rare earth ions are inclined to exist in abnormal valency, and the properties of rare earth correspond to the valence state of rare earth closely Both europium and terbium have abnormal valence state. Eu3+ and Tb3+ ions are a couple of conjugate rare earth ions; they are both important activated ions. The present note reports the luminescent properties of SrB6O10 xEu, yTb phosphors which are synthesized in air atmosphere. Eu3+, Eu2+ and Tb3+ ions can coexist in SrB6O10: xEu, yTb phosphors, and the emission intensity of europium(Ⅱ) is increased if the concentration of terbium(Ⅲ) is increased in SrB6O10: 0.006Eu3+, yTb3+ | GAO Yong, SHI Chunshan and LI DechengLaboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences. Changchun 130022, China | 1997 | Chinese Science Bulletin1997，42，5： | 2 |
| 19 | Al2O3 and CeO2-promoted MgO sorbents for CO2 capture at moderate temperatures显示文摘 | Huimei Yu Xiaoxing Wang Zhu Shu Mamoru Fujii Chunshan Song | 2018 | Frontiers of Chemical Science and Engineering2018，12，1： | 2 |
| 20 | The template-assisted zinc ion incorporation in SAPO-34 and the enhanced ethylene selectivity in MTO reaction显示文摘The SAPO-34 catalyst was fine-tuned with zinc cations through a straightforward template-assisted ion incorporation (TH) process, without the necessary template pre-removal and the preparation of NH4- SAPO-34 intermediate, which is more facile, efficient and cost-effective than the conventional ion exchange process. The template-assisted zinc cations incorporated SAPO-34 catalysts were characterized by XRD, XRF, N2 adsorption-desorption, XPS, SEM, EDX,NMR, respectively. Enhanced selectivity to ethylene and ratio of ethylene to propylene in MTO reaction are observed over the zinc cations modified SAPO-34 catalysts, due to the facilitated formation of lower methylbenzenes that favour the ethylene gen eration, as well as the increased diffusion hindrance originated from the zinc cations incorporation and the facil让ated generation of aromatics compound. | Jiawei Zhong Jingfeng Han Yingxu Wei Shutao Xu Tantan Sun Xinwen Guo Chunshan Song Zhongmin Liu | 2019 | Journal of Energy Chemistry2019，28，5： | 2 |
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