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| 1 | Highly selective ethylbenzene production through alkylation of dilute ethylene with gas phase-liquid phase benzene and transalkylation feed显示文摘A novel industrial process was designed for the highly selective production of ethylbenzene. It comprised of a reactor vessel, vapor phase ethylene feed stream, benzene and transalkylation feed stream. Especially the product stream containing ethylbenzene was used to heat the reactor vessel, which consisted of an alkylation section, an upper heat exchange section, and a bottom heat exchange section. In such a novel reactor, vapor phase benzene and liquid phase benzene were coexisted due to the heat produced by isothermal reaction between the upper heat exchange section and the bottom heat exchange section. The process was demonstrated by the thermodynamic analysis and experimental results. In fact, during the 1010 hour-life-test of gas phase ethene with gas phase-liquid phase benzene alkylation reaction, the ethene conversion was above 95%, and the ethylbenzene selectivity was above 83% (only benzene feed) and even higher than 99% (benzene plus transalkylation feed). At the same time, the xylene content in the ethylbenzene was less than 100 ppm when the reaction was carried out under the reaction conditions of 140-185 °C of temperature, 1.6-2.1 MPa of pressure, 3.0-5.5 of benzene/ethylene mole ratio, 4-6 v% of transalkylation feed/(benzene+transalkylation feed), 0.19-0.27 h-1 of ethene space velocity, and 1000 g of 3998 catalyst loaded. Thus, compared with the conventional ethylbenzene synthesis route, the transalkylation reactor could be omitted in this novel industrial process. | Shenglin Liu Fucun Chen Sujuan Xie Peng Zeng Xiyan Du Longya Xu | 2009 | Journal of Natural Gas Chemistry2009，18，1： | 11 |
| 2 | Cell-free plasma hypermethylated CASZ1, CDH13 and ING2 are promising biomarkers of esophageal cancer显示文摘Identifying sensitive and specific biomarkers for early detection of cancer is immensely imperative for early diagnosis and treatment and better clinical outcome of cancer patients. This study aimed to construct a specific DNA methylation pattern of cancer suppressor genes and explore the feasibility of applying cell-free DNA based methylation as a biomarker for early diagnosis of esophageal squamous cell carcinoma(ESCC). We recruited early stage ESCC patients from Yangzhong County, China. The Illumina Infinium 450 K Methylation BeadChip was used to construct a genome-wide DNA methylation profile. Then, differentiated genes were selected for the validation study using the Sequenom MassARRAY platform. The frequency of methylation was compared between cancer tissues, matched cell-free DNAs and normal controls. The specific methylation profiles were constructed, and the sensitivity and specificity were calculated. Seven CG sites in three genes CASZ1, CDH13 and ING2 were significantly hypermethylated in ESCC as compared with normal controls. A significant correlation was found between the methylation of DNA extracted from cancer tissues and matched plasma cell-free DNA, either for individual CG site or for cumulative methylation analysis. The sensitivity and specificity reached 100% at an appropriate cut-point using these specific methylation biomarkers. This study revealed that aberrant DNA methylation is a promising biomarker for molecular diagnosis of esophageal cancer. Hypermethylation of CASZ1,CDH13 and ING2 detected in plasma cell-free DNA can be applied as a potential noninvasive biomarker for diagnosis of esophageal cancer. | Huanqiang Wang Congying Yang Siyuan Wang Tian Wang Jingling Han Kai Wei Fucun Liu Jida Xu Xianzhen Peng Jianming Wang | 2018 | The Journal of Biomedical Research2018，32，6： | 6 |
| 3 | Experimental evaluation of heterobeltiosis and heterosis between two populations of Pacific abalone Haliotis discus hannai Ino显示文摘A2×2 factorial cross between two populations of Pacific abalone Haliotis discus hannai Ino,collected separately from Dalian(D)in China and Miyagi(M)in Japan,was conducted to compare performances in fertilization rate,hatching rate,metamorphosis rate and growth at days 20,43,160 and 330 between purebreds(DD and MM)and crossbreds(DM and MD)and investigate the magnitude of heterobeltiosis(better parent)and heterosis(mid-parent).Heterobeltiosis and heterosis for all the traits analyzed were evidently different between crossbreds DM and MD.Heterobeltiosis in the crossbred DM varied among traits,with values of 2.5% for the fertilization rate,2.2% for the hatching rate,-1.9% for the metamorphosis rate and 7.4% for the growth at the day 330.The crossbred DM displayed positive heterotic values for fertilization rate(5.4%),hatching rate(7.4%),metamorphosis rate(7.6%)and growth(12.0%)at the day 330.However,both heterobeltiosis and heterosis for all the traits in the crossbred MD were negative except those for the growth at days 20 and 43.The results indicate the importance of selecting superior hybrid varieties if the exploitation of hybrid vigor is considered in the Pacific abalone breeding program. | DENG Yuewen LIU Xiao WU Fucun ZHANG Guofan | 2008 | Acta Oceanologica Sinica2008，27，4： | 3 |
| 4 | 1-Butene isomerization and metathesis over Mo/mordenite-alumina: Factors influencing product distribution and induction period显示文摘Effects of space velocity, reaction temperature and support acidity on product distribution and induction period in 1-butene isomerization and metathesis over Mo/mordenite-alumina were investigated. As revealed by the catalytic performance results, induction period and objective product were closely related to the reaction conditions. Lower space velocity led to longer induction period and higher propene yield. The optimal reaction temperature for propene production is around 150C and it shifted to 100C for ethene production. 1-Butene auto-metathesis predominated in the reaction network if the support with lower degree of sodium exchanged. And propene gradually became the dominant product upon increasing the support sodium exchange degree. 6Mo/H 100 Na 0 M-30Al catalyst with a support of full sodium exchange degree exhibited the highest propene yield. | Xiujie Li Xiangxue Zhu Dazhou Zhang Fucun Chen Peng Zeng Shenglin Liu Sujuan Xie Longya Xu | 2013 | Journal of Energy Chemistry2013，22，1： | 3 |
| 5 | Effects of dietary Selenomethionine supplementation on growth performance,antioxidant status,plasma selenium concentration,and immune function in weaning pigs显示文摘Background:This study was designed to evaluate the efficacy of DL-selenomethionine(DL-SeMet) supplementation on growth performance,antioxidant status,plasma selenium(Se) concentration,and immune function of weaning pigs.216 weaning pigs were randomly allocated to 6 treatments with 6 replicates each according to a complete randomized block design.Each replicate had six pigs.Diet of group one was corn-soybean basal diet without any additional Se supplement.Group 2 was supplemented with 0.3 mg/kg of Se from sodium selenite.Groups 3-6 were supplemented with 0.1,0.3,0.5,and 0.7 mg/kg of Se from DL-SeMet,respectively.The trial lasted for 42 days.Results:Pigs supplemented with 0.3 and 0.7 mg/kg DL-SeMet obtained better feed gain ratio(P< 0.05).The best antioxidant ability(serum,liver,and muscle) was shown in 0.1-0.3 mg/kg DL-SeMet groups(P< 0.05).The plasma Se concentration increased as the dietary DL-SeMet level elevated.The immunity among groups was not affected.Conclusions:DL-SeMet supplementation in the diet significantly improved the growth performance,antioxidant ability and plasma Se content of weaning pigs.DL-SeMet can replace sodium selenite in the diet of weaning pigs. | Jun Cao Fucun Guo Liying Zhang Bing Dong Limin Gong | 2015 | Journal of Animal Science and Biotechnology2015，6，1： | 2 |
| 6 | Direct amination of isobutylene over zeolite catalysts with various topologies and acidities显示文摘The atomically economic and green chemical reaction of direct amination of isobutylene to tertbutylamine, particularly under the relative mild reaction conditions available for future industrial use,was carried out over zeolite catalysts possessing different topological structures, from one dimensional to three dimensional pore system, and from small 8-member ring pore(MRP) to medium 10 MRP and further to large 12 MRP zeolites, to disclose the relationship between the zeolite properties/topologies and their amination performance systematically under the mild reaction conditions. It was discovered that the pore structure and the acidities of zeolite catalysts played crucial roles in the isobutylene amination process, and suitable pore diameter(larger than 0.5 nm or with large side pockets/cups in the outside surface) and a certain number of mid-strong acid sites are indispensable to catalyze the amination reaction,while too strong acid strength was not conducive to the process of isobutylene amination. Among them,zeolites with topologies of BEA, MFI, MEL, MWW and EUO exhibited good amination performance, with which the isobutylene conversion was higher than 12.61%(>46.42% of the equilibrium conversion) under the studied mild reaction conditions. Due to the good amination performance and the large adjustable Si/Al_2 ratio range, ZSM-5 was selected to further study the effect of acidity on the amination performance systematically under the mild reaction conditions, and the activity-acidity relationship in the amination process was disclosed: the amination activity(isobutylene conversion) had a linear correlation with the amount of mid-strong B acidity under the studied conditions over ZSM-5 catalyst, which can provide guidance for further developing high-efficient amination catalyst under mild reaction conditions available for future industrial use. | Shangyao Gao Xiangxue Zhu Xiujie Li Yuzhong Wang Sujuan Xie Songwei Du Fucun Chen Peng Zeng Shenglin Liu Longya Xu | 2017 | Journal of Energy Chemistry2017，26，4： | 1 |
| 7 | Development and in- dustrialization of the ethylbenzene production technologies from dilute ethylene in FCC dry gas 显示文摘 | Zhu Xiangxue Chen Fucun An Jie | 2011 | Adv Mats Res2011，，： | 1 |
| 8 | Relationships of growth and mortality to enzymatic activity,and the relative mRNA expression of cultured scallops Patinopecten yessoensis in the Yellow Sea, China显示文摘The bottom aquaculture of yesso scallop (Patinopecten yessoensis) has developed rapidly in the north of Yellow Sea, China, but not without accompanying productivity problems. We, therefore, conducted field surveys to investigate factors related to growth and mortality rates of bottom-cultured scallops after release. Specifically, we focused on the effects of total antioxidant capacity (TAOC) and three key enzymes involved in antioxidant and metabolic function:glutamic pyruvic transaminase (GPT), lactic dehydrogenase (LDH), and superoxide dismutase (SOD). Across summer and winter, we also measured the relative mRNA expression of GPT and SOD to understand their seasonal variation in the scallops, along with how such variation correlated to growth and mortality. Results show that bottom cultured scallops experienced mass mortality during the first six months post-release. During winter (December), scallops grew more rapidly and suffered less mortality than in summer (August). The observed lower performance probably resulted from less advantageous environmental factors during the summer seasons, such as high temperature and low dissolved oxygen. These environmental stressors enhance protein consumption while decreasing energetic resources in scallops. Furthermore, scallops in summer exhibited high antioxidant levels that probably competed for energy with process integral to growth and survival. These negative factors combined to elevate mortality rates. In conclusion, we provided evidence suggesting correlations between metabolic/antioxidant activity and growth and mortality of bottom-cultured yesso scallops. These correlations implied us an accurate method to estimate the performance of bottom culture system. Suggestions about innovative aquaculture techniques were also discussed in the study. Our results might provide a possible guideline to the improvement of bottom culture techniques for this commercially valuable seafood species. | LIU Chao WU Fucun QUE Huayong ZHANG Guofan | 2019 | Journal of Oceanology and Limnology2019，37，4： | 1 |
| 9 | The influence of preparation procedures and tungsten loading on the metathesis activity of ethane and 2-hutene over supported WO3 catalysts显示文摘 | Huang Shengjun Chen Fucun Liu Shenglin | 2007 | Journal of Molecular Catalysis A:Chemical2007，267，： | 1 |
| 10 | Effect of Si/A1 Ratio of the Starting NaY on Hydro-Upgrading Catalyst Perfor- mance显示文摘 | Wang Fucun Wang Liang Zhu Jinling | 2010 | CatalToday2010，158，34： | 1 |
| 11 | Good Short-Term Outcome of Arthroplasty With Wagner SL Implants for Unstable Intertrochanteric Osteoporotic Fractures显示文摘 | Xiaobing Chu Fucun Liu Jiefeng Huang Lijiang Chen Ju Li Peijian Tong | 2014 | The Journal of Arthroplasty2014，，3： | 1 |
| 12 | Effect of Si/ A1 ratio of the starting NaY on hydro-upgrading catalyst performance显示文摘 | Wang Fucun Wang Liang Zhu Jinling | 2010 | Catalysis Today2010，158，： | 1 |
| 13 | Hydrologic implications of the isotopic kinetic fractionation of open-water evaporation显示文摘The kinetic fractionation of open-water evaporation against the stable water isotope H_2 ^(18)O is an important mechanism underlying many hydrologic studies that use ^(18)O as an isotopic tracer. A recent in-situ measurement of the isotopic water vapor flux over a lake indicates that the kinetic effect is much weaker(kinetic factor 6.2‰) than assumed previously(kinetic factor14.2‰) by lake isotopic budget studies. This study investigates the implications of the weak kinetic effect for studies of deuterium excess-humidity relationships, regional moisture recycling, and global evapotranspiration partitioning. The results indicate that the low kinetic factor is consistent with the deuterium excess-humidity relationships observed over open oceans.The moisture recycling rate in the Great Lakes region derived from the isotopic tracer method with the low kinetic factor is a much better agreement with those from atmospheric modeling studies than if the default kinetic factor of 14.2‰ is used. The ratio of transpiration to evapotranspiration at global scale decreases from 84±9%(with the default kinetic factor) to 76±19%(with the low kinetic factor), the latter of which is in slightly better agreement with other non-isotopic partitioning results. | Wei XIAO Yufei QIAN Xuhui LEE Wei WANG Mi ZHANG Xuefa WEN Shoudong LIU Yongbo HU Chengyu XIE Zhen ZHANG Xuesong ZHANG Xiaoyan ZHAO Fucun ZHANG | 2018 | Science China Earth Sciences2018，61，10： | 1 |
| 14 | Geochemical characteristics and fluoride distribution in the groundwater of the Zhangye Basin in Northwestern China显示文摘 | He Jin An Yonghui Zhang Fucun | 2013 | Journal of Geochemical Exploration2013，135，： | 1 |
| 15 | Wax composition of ‘Red Fuji’ apple fruit during development and during storage after 1-methylcyclopropene treatment显示文摘 | Xiaoqing Dong Jingping Rao Donald Huber Xiaoxiao Chang Fucun Xin | 2012 | Horticulture Environment and Biotechnology2012，，4： | 1 |
| 16 | Arsenic, fluoride and iodine in groundwater of China 显示文摘 | Dongguang Wen Fucun Zhang Eryong Zhang | 2013 | Journal of Geochemical Exploration: Journal of the Association of Ex- ploration Geochemists2013，135，： | 1 |
| 17 | Sm 0.5 Sr 0.5 CoO 3 ? δ -infiltrated cathodes for solid oxide fuel cells with improved oxygen reduction activity and stability显示文摘 | Fucun Wang Dengjie Chen Zongping Shao | 2012 | Journal of Power Sources2012，，： | 1 |
| 18 | Geochemical characteristics and fluoride distribution in the groundwater of the Zhangye Basin in Northwestern China显示文摘 | He Jin An Yonghui Zhang Fucun | 2013 | Journal of Geochemical Exploration2013，135，： | 1 |
| 19 | Co-feeding with DME:An effective way to enhance gasoline production via low temperature aromatization of LPG显示文摘The aromatization of light alkenes in liquefied petroleum gas (LPG) with and without dimethyl ether (DME) addition in the feed was investigated on a modified ZSM-5 catalyst.The results showed that under the given reaction conditions the selectivity of alkenes to high-octane gasoline blending components was markedly enhanced and the formation of propane and butanes was greatly suppressed with the addition of DME.It was also found that the distribution of C5+ components was changed a lot with DME addition into the LPG feed.The formation of branched hydrocarbons (mainly C6 C8 i-paraffin) and multi-methyl substituted aromatics,which are high octane number gasoline blending components,was promoted significantly,while the content of n-paraffins and olefins in C5+ components was decreased obviously,indicating that in addition to the oligomerization,cracking,hydrogen-transfer and dehydrogenation-cyclization of alkenes,the methylation of the formed aromatics and olefins intermediates also plays an important role in determining the product distribution due to the high reactivity of surface methoxy groups formed by DME.And this process,in combination with the syngas-to-methanol/DME technology,provides an alternative way to the production of high-octane gasoline from coal,natural gas or renewable raw materials. | Xiangxue Zhu Yuzhong Wang Xiujie Li Hongbing Li Peng Zeng Jie An Fucun Chen Sujuan Xie Hongping Lan Dawei Wang Shenglin Liu Longya Xu | 2013 | Journal of Energy Chemistry2013，22，5： | 1 |
| 20 | Sustainable Development of Agriculture and Animal Husbandry in the Plateau Regionof North Part of Hebei显示文摘SustainableDevelopmentofAgricultureandAnimalHusbandryinthePlateauRegionofNorthPartofHebei￥ZhangLifeng;YangFucun;XuChangjin;Li... | Zhang Lifeng Yang Fucun Xu Changjin Li Rengang(Hebei Agricultural University,Baoding 071001) | 1995 | 河北农业大学学报1995，18，S1： | 0 |
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