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| 1 | Comparative Analysis on Chemical Components and Sensory Quality of Aging Flue-Cured Tobacco from Four Main Tobacco Areas of China显示文摘Complicated changes are happening during the aging process of flue-cured tobacco (FCT) and understanding of the changing components is of great significance in improving the quality,shortening aging time,and enhancing production and economic efficiency in tobacco industry.The aging samples of FCT from four main producing areas of China,i.e.,Yunnan,Sichuan,Hubei,and Dongbei,were used to study the changing rule of the components such as alkali,acid,and carbohydrate as well as the aroma and their relationship with sensory quality;and based on the correlation among the components and the sensory quality index,multivariable models were established to predict the aging quality.The results showed that the sensory quality of FCT increased steadily during the aging time,and at the same time,the acidic components (total organic acids,volatile acids) increased gradually,while the alkaline substances (nicotine,volatile alkali),carbohydrate (total sugars,reducing sugar) and pH values showed a downward trend.Correlation analysis found that the sensory quality and pH values were negatively correlated (P<0.05),while the sensory quality with total organic acids and aroma were positively correlated.The optimal model for predicting the quality of FCT was y=56.75-0.63x12+50.09x2-13.27x22,(y:sensory quality;x1:pH;x2:total organic acids).The average predicating error was 1.04% with maximum predicating error of 2.89% and the accuracy rate of above 97%. | SUN Jing-guo HE Jie-wang WU Feng-guang TU Shu-xing YAN Tie-jun SI Hui XIE Hao | 2011 | Agricultural Sciences in China2011，10，8： | 20 |
| 2 | Multiscale carbon foam confining single iron atoms for efficient electrocatalytic CO2 reduction to CO显示文摘Electrocatalytic CO2 reduction to CO is a sustainable process for energy conversion.However,this process is still hindered by the diffusi limited mass transfer,low electrical conductivity and catalytic activity.Therefore,new strategies for catalyst design should be adopted to solve these problems and improve the electrocatalytic performa nee for CO production.Herein,we report a multiscale carb on foam confining〔single iron atoms prepared with the assistant of S1O2 template.The pore-enriched environment at the macro-scale facilitates the diffusion of reacta nts and products.The graphe ne nano sheets at the nano-scale promote the charge tran sfer duri ng the reaction.The single iron atoms con fined in carb on matrix at the atomic-scale provide the active sites for electrocatalytic CO2 reductio n to CO.The optimized catalyst achieves a CO Faradaic efficiency of 94.9%at a moderate potential of-0.5 V vs.RHE.Furthermore,the performance can be maintained over 60 hours due to the stable single iron atoms coordi nated with four n itroge n atoms in the carb on matrix.This work provides a promising strategy to improve both the activity and stability of single atom catalysts for electrocatalytic CO2 reduction to CO. | Zheng Zhang Chao Ma Yunchuan Tu Rui Si Jie Wei Shuhong Zhang Zhen Wang Jian-Feng Li Ye Wang Dehui Deng | 2019 | Nano Research2019，12，9： | 11 |
| 3 | Speciation and fractionation of heavy metals in soil experimentally contaminated with Pb, Cd, Cu and Zn together and effects on soil negative surface charge显示文摘Speciation and fractionation of heavy metals in soil subsamples experimentally loaded with Pb, Cd, Cu and Zn in orthogonal design was investigated by sequential extraction, and operationally defined as water soluble and exchangeable(SE), weakly specific adsorbed(WSA), Fe and Mn oxides bound(OX) and organic bound(ORG). The results showed that fractions of heavy metals in the soil subsamples depended on their speciation. About 90% of Cd and 75% of Zn existed in soil subsamples in the SE fraction. Lead and Cu existed in soil subsamples as SE, WSA and OX fractions simultaneously, although SE was still the major fraction. Organic bound heavy metals were not clearly apparent in all the soil subsamples. The concentration of some heavy metal fractions in soil subsamples showed the good correlation with ionic impulsion of soil, especially for the SE fraction. Continuous saturation of soil subsamples with 0.20 mol/L NH 4Cl, which is the first step for determination of the negative surface charge of soil by the ion retention method, resulted in desorption of certain heavy metals from the soil. It was found that the percentage desorption of heavy metals from soil subsamples depended greatly on pH, the composition and original heavy metal content of the soil subsamples. However, most of the heavy metals in the soil subsamples were still be retained after multiple saturation. Compared with the parent soil, the negative surface charge of soil subsamples loaded with heavy metals did not show difference significantly from that of the parent one by statistical analysis. Heavy metals existed in the soil subsamples mainly as exchangeable and precipitated simultaneously. | ZHOU Dong mei, HAO Xiu zhen, TU Cong, CHEN Huai man, SI You bin (Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China. ) | 2002 | Journal of Environmental Sciences2002，14，4： | 10 |
| 4 | Transarterial embolization ablation of hepatocellular carcinoma with a lipiodol-ethanol mixture显示文摘AIM: To determine the safety and effectiveness of transarterial embolization ablation (TEA) of hepatocellular carcinoma (HCC) with a lipiodol-ethanol mixture. METHODS: Between January 1 and December 31, 2009, 15 patients with HCC (13 men/two women, aged 38-75 years) accepted TEA treatment and were enrolled in this study, including five newly diagnosed patients and 10 with refractory disease. Two months after TEA, angiography and contrast computed tomography (CT) were performed, and responses were assessed using a modified version of Response Evaluation Criteria in Solid Tumors (RECIST version 1.1). The follow-up period was to June 30, 2010. RESULTS: Every new case was treated once. Angiography was performed immediately after TEA, and showed that the tumor-feeding vessels were completely embolized and that lipiodol was densely deposited inside tumors. Two months after treatment, contrast CT showed no enhanced lesions. Alpha fetoprotein levels returned to normal in four patients and markedly decreased in another. mean ± SD survival after treatment was 10.8 ± 4.5 mo. All five patients survived during the follow-up period. Ten patients with refractory disease were treated a total of 14 times. Angiography immediately after TEA showed that blood flow to the tumors was obviously decreased in all cases, and contrast CT showed obvious depositions of lipiodol. Two months after treatment, the tumors had shrunk (6/10) or were stable (3/10). One had progressed after 2 mo and died of tumor rupture 3 mo after TEA. mean ± SD survival after treatment was 8.6 ± 4.3 mo; two patients survived during the follow-up period. Adverse effects included reversible hepatic decompensation, upper abdominal pain, and fever. CONCLUSION: TEA is an effective therapy for patients with HCC and might be more effective than transcather arterial chemoembolization for treating refractory disease. | Yang-Kui Gu, Rong-Guang Luo, Jin-Hua Huang, Qi-Jiao Si Tu, Xiao-Xia Li, Fei Gao,State Key Laboratory of Oncology in Southern China,Department of Medical Imaging and Interventional Radiology,Cancer Center,Sun Yat-sen University,Guangzhou510060,Guangdong Province,China Department of Medical Imaging and Interventional Radiology, the First Affiliated Hospital of Nan-Chang University, 17 Yongwaizheng Street, Nanchang 330006, Jiangxi Province, China | 2010 | World Journal of Gastroenterology2010，16，45： | 9 |
| 5 | Effect of supplementation of allicin on methanogenesis and ruminal microbial flora in Dorper crossbred ewes显示文摘Background: Garlic extracts have been reported to be effective in reducing methanogenesis. Related mechanisms are not well illustrated, however, and most studies have been conducted in vitro. This study investigates the effects of supplementary allicin(AL) in sheep diet on in vivo digestibility, rumen fermentation, and shifts of microbial flora.Methods: Two experiments were conducted using Dorper × thin-tailed Han crossbred ewes. In experiment 1,eighteen ewes(60.0 ± 1.73 kg BW) were randomly assigned for 29 days to either of two dietary treatments: a basal diet or the basal diet supplemented with 2.0 g AL/head?day to investigate supplementary AL on nutrient digestibility and methane emissions. In experiment 2, six ewes(65.2 ± 2.0 kg BW) with ruminal canulas were assigned to the same two dietary treatments as in experiment 1 for 42 days to investigate supplementary AL on ruminal fermentation and microbial flora. The methane emissions were determined using an open-circuit respirometry system and microbial assessment was done by q PCR of 16 S r RNA genes.Results: Supplementary AL increased the apparent digestibility of organic matter(P < 0.001), nitrogen(P = 0.006),neutral detergent fiber(P < 0.001), and acid detergent fiber(P = 0.002). Fecal nitrogen output was reduced(P = 0.001)but urinary nitrogen output was unaffected(P = 0.691), while nitrogen retention(P = 0.077) and nitrogen retention/nitrogen intake(P = 0.077) tended to increase. Supplementary AL decreased methane emissions scaled to metabolic bodyweight by 5.95 %(P = 0.007) and to digestible organic matter intake by 8.36 %(P = 0.009). Ruminal p H was unaffected(P = 0.601) while ammonia decreased(P = 0.024) and total volatile fatty acids increased(P = 0.024) in response to supplementary AL. Supplementary AL decreased the population of methanogens(P = 0.001) and tended to decrease that of protozoans(P = 0.097), but increased the populations of F. succinogenes(P < 0.001), R. flavefaciens(P = 0.001), and B. fibrisolvens(P = 0.001).Conclusions: Supplementation of AL at 2.0 g/head?day effectively enhanced OM, N, NDF, and ADF digestibility and reduced daily methane emissions(L/kg BW0.75) in ewes, probably by decreasing the population of ruminal protozoans and methanogens. | Tao Ma Dandan Chen Yan Tu Naifeng Zhang Bingwen Si Kaidong Deng Qiyu Diao | 2016 | Journal of Animal Science and Biotechnology2016，7，2： | 9 |
| 6 | Rumen fermentation and bacterial communities in weaned Chahaer lambs on diets with different protein levels显示文摘We evaluated the effects of diets with different crude protein(CP) levels on growth performance, rumen fermentation and bacterial communities in weaned Chahaer lambs. 128 weaned Chahaer lambs((20.56±1.43) kg body weight; ram:ewe 1:1) aged(61±1.85) d were randomly allotted to one of four diets with CP content of 11.17%(T1), 12.06%(T2), 13.40%(T3) or 14.36%(T4). Ruminal fermentation parameters were measured and bacterial communities were analysed using PCR-denaturing gradient gel electrophoresis(PCR-DGGE) and quantitative PCR. The average daily gain and feed utilization efficiency in T3 were higher than those in the other groups(P<0.05), although the dry matter intake and metabolizable energy intake were similar. Total volatile fatty acid concentration in the ruminal fluid of T3 was lower than that of T1(P=0.011), T2(P=0.008) or T4(P=0.309). The ammonia nitrogen concentration and acetate/propionate ratio of ruminal fluid were significantly higher in lambs fed the higher CP diets, whereas the molar concentrations of propionate and butyrate of ruminal fluid were lower. The rumen bacterial community was similar in T2 and T3 which shown more stable and diverse rumen microbes ecosystem compared with the other groups. The DGGE profiles and phylogenetic tree indicated that Bacteroides uniformis, Clostridium alkalicellulosi, Alkalibaculum bacchi and Saccharofermentans sp. were common bacterium of Chahaer lamb rumen. B. uniformis, C. alkalicellulosi, Saccharofermentans sp. and Gracilibacter thermotolerans, which belong to the Bacteroidetes and Firmicutes phyla, were the dominant species in the rumen of lambs fed 13.40% CP. However, Ruminococcus albus, Ruminococcus flavefaciens and Butyrivibrio fibrisolvens were not different in lambs fed different CP diets. Therefore, it could be concluded that B. uniformis, C. alkalicellulosi, A. bacchi and Saccharofermentans sp. were common bacteria of Chahaer lamb rumen. Furthermore, the dietary CP of 13.04% could improve performance and change rumen fermentation model by increasing the dominant species' peak intensities of B. uniformis, C. alkalicellulosi, Saccharofermentans sp. and Gracilibacter thermotolerans and stabilizing rumen microbial ecosystem. | YANG Chun-tao SI Bing-wen DIAO Qi-yu JIN Hai ZENG Shu-qin TU Yan | 2016 | Journal of Integrative Agriculture2016，15，7： | 6 |
| 7 | Effects of protein sources for milk replacers on growth performance and serum biochemical indexes of suckling calves显示文摘This study investigated the effects of protein sources for milk replacers on growth performance and serum biochemical indexes of suckling calves. Fifty Chinese Holstein bull calves with similar BW and age were randomly allocated to 5 groups(1 control and 4 treatments) of 10 calves in each group. Five types of milk replacers were designed to have the same level of energy and protein. The protein source for milk replacers of the control group was full milk protein(MP). The protein source of milk replacers of the 4 treatment groups was composed of MP and one vegetable protein(VP)(30 and 70% of total protein). The4 types of VP were soybean protein concentrate(SP), hydrolyzed wheat protein(WP), peanut protein concentrate(PP), and rice protein isolate(RP). Results of the experiment showed: 1) there was no significant difference on average daily gain(ADG) and feed:gain ratio(F:G) among the MP, SP and RP groups(P > 0.05), whereas the ADG and F:G of the WP and PP groups were significantly lower compared with the MP group(P < 0.05); 2) there was not a significant difference in withers height, body length and heart girth among treatment groups compared with the MP group(P > 0.05). Thereby the 4 VP milk replacers had no adverse effects on body size of calves; 3) all groups showed no significant difference in the serum contents of urea nitrogen, total protein, albumin, globulin, β-hydroxybutyrate, growth hormone, insulin-like growth factor-1, and the ratio of albumin to globulin(A:G)(P> 0.05). In conclusion, SP or RP(accounts for 70% of the total protein) as calf milk replacers could substitute MP, whereas wheat gluten and PP had a significant adverse effect on growth performance in this experiment. | Kaiwu Huang Yan Tu Bingwen Si Guishan Xu Jiangpeng Guo Feng Guo Chuntao Yang Qiyu Diao | 2015 | Animal Nutrition2015，，4： | 5 |
| 8 | Age-specific differences in non-cardiac comorbidities among elderly patients hospitalized with heart failure: a special focus on young-old, old-old, and oldest-old显示文摘Background:Despite the growing epidemic of heart failure(HF),there is limited data available to systematically compare noncardiac comorbidities in the young-old,old-old,and oldest-old patients hospitalized for HF.The precise differences will add valuable information for better management of HF in elderly patients.Methods:A total of 1053 patients aged 65 years or older hospitalized with HF were included in this study.Patients were compared among three age groups:(1)young-old:65 to 74 years,(2)old-old:75 to 84 years,and(3)oldest-old:≥85 years.Clinical details of presentation,comorbidities,and prescribed medications were recorded.Results:The mean age was 76.7 years and 12.7%were 85 years or older.Most elderly patients with HF(97.5%)had at least one of the non-cardiac comorbidities.The patterns of common non-cardiac comorbidities were different between the young-old and oldestold group.The three most common non-cardiac comorbidities were anemia(53.6%),hyperlipidemia(45.9%),and diabetes(42.4%)in the young-old group,while anemia(73.1%),infection(58.2%),and chronic kidney disease(44.0%)in the oldest-old group.Polypharmacy was observed in 93.0%elderly patients with HF.Additionally,29.2%patients were diagnosed with infection,and 67.0%patients were prescribed antibiotics.However,60.4%patients were diagnosed with anemia with only 8.9%of them receiving iron repletion.Conclusions:Non-cardiac comorbidities are nearly universal in three groups but obviously differ by age,and inappropriate medications are very common in elderly patients with HF.Further treatment strategies should be focused on providing optimal medications for age-specific non-cardiac conditions. | Meng-Xi Yang Hui An Xue-Qiang Fan Li-Yuan Tao Qiang Tu Li Qin Li-Fang Zhang Dong-Ping Feng Yu Wang Li Sun Si Gao Wen-Zhuo Guan Jin-Gang Zheng Jing-Yi Ren | 2019 | Chinese Medical Journal2019，，24： | 4 |
| 9 | Protein requirements of early-weaned Dorper crossbred female lambs显示文摘The net protein(NP) and metabolizable protein(MP) requirements of Dorper crossbred female lambs from 20 to 35 kg body weight(BW) were assessed in a comparative slaughter trial. Thirty-five Dorper×thin-tailed Han crossbred lambs weaned at approximately 50 d of age((19.1±2.37) kg of BW) were used. Seven randomly selected lambs were slaughtered at the beginning of the trial as baseline group(BL). An intermediate group of seven randomly selected lambs fed ad libitum(AL) intake was slaughtered when the lambs reached an average BW of 28.6 kg. The remaining 21 lambs were allotted randomly to three levels of dry matter intake: AL or restricted to 70 or 40% of the AL intake. All lambs were slaughtered when the sheep fed AL intake reached 35 kg of BW. Total body N and N retention were determined. The results showed that the maintenance requirements for NP and MP were 1.75 and 3.37 g kg^(–1) metabolic shrunk body weight(SBW0.75), respectively. The partial efficiency of protein use for maintenance was 0.52. The NP requirements for growth ranged from 10.9 to 42.4 g d^(–1) for the lambs gaining 100 to 350 g d^(–1) from 20 to 35 kg BW. The partial efficiency of MP for growth was 0.52. In conclusion, the NP and MP requirements for the maintenance and growth of Dorper crossbred female lambs were lower than those reported by AFRC(1993) and NRC(2007) recommendations. | MA Tao DENG Kai-dong TU Yan ZHANG Nai-feng SI Bing-wen XU Gui-shan DIAO Qi-yu | 2017 | Journal of Integrative Agriculture2017，16，5： | 3 |
| 10 | Growth performance and rumen microorganism differ between segregated weaning lambs and grazing lambs显示文摘Two feeding patterns of the segregated weaning or grazing in the pasture are carried out worldwide in animal production.To investigate the difference of growth performance and rumen microorganism population related to methane metabolism in the two feeding patterns,three groups of lambs(70 in total)were used:Weaning at 21 days old and being subjected to high-concentration diets(3WK group with 20 lambs),weaning at 35 days old and being subjected to high-concentration diets(5WK group with 20 lambs),or grazing at pasture with the nursing mother(Grazing group with 30 lambs).The growth performance,pH value of rumen content,and the rumen microbes were investigated during weaning period and fattening period with approximately 3 months.Our results showed that lambs in 3WK and 5WK groups demonstrated a better growth performance than the lambs in Grazing group,but no significant difference was observed in the pH value between the three groups(P>0.05).The total rumen bacterial population of the Grazing lambs was significantly lower than that of3WK lambs(P<0.05)and 5WK lambs(P<0.05);however,the population of methanogens was 4.2-and 2.7-fold lower in the3WK(P<0.05)and 5WK(P<0.05)lambs compared with Grazing lambs,respectively;protozoa were also 3.5-and 3.4-fold lower in the 3WK(P<0.05)and 5WK(P<0.05)lambs,respectively.The results revealed that segregated weaning lambs may have better growth performance,and reduce methane-producing microbes. | JI Shou-kun JIANG Cheng-gang LI Rui DIAO Qi-yu TU Yan ZHANG Nai-feng SI Bing-wen | 2016 | Journal of Integrative Agriculture2016，15，4： | 2 |
| 11 | Equilibrium and kinetic study of ammonium adsorption and fixation in sodium -treated vermiculite 显示文摘 | SHEN SY TU SI KEMPER WD | 1997 | Soil Science Society of America Journal1997，61，6： | 1 |
| 12 | Weighted E-volving Networks显示文摘 | S H Yook H Jeong A-L Barabási Y Tu | | 0，，86： | 1 |
| 13 | Establishment and characterization of a cell line from brain metastasis in nude mice ind, uced by injection of human tongue cancer Tca8113 cells 显示文摘 | Wu JZ Si Tu ZQ Liu B | 2002 | ChinJ Dent Res2002，5，1： | 1 |
| 14 | High - throughput biosensors for multiplexed food - borne pathogen detection 显示文摘 | Gehring AG Tu SI | 2011 | Annu Rev Anal Chem2011，，4： | 1 |
| 15 | A multiplex real-time polymerase chain reaction for simultaneous detection of Salmonella spp, Escherichia coli O157, and Listeria monocytogenes in meat products显示文摘 | SUO B HE Y TU SI | 2010 | Foodborne Pathog Dis2010，7，6： | 1 |
| 16 | High-throughput biosensors for multiplexed food-borne pathogen detection显示文摘 | Gehring AG Tu SI | | 0，，： | 1 |
| 17 | Identifying Carbon stars from the LAMOST pilot survey with the efficient manifold ranking algorithm显示文摘Carbon stars are excellent kinematic tracers of galaxies and can serve as a viable standard candle,so it is worthwhile to automatically search for them in a large amount of spectra.In this paper,we apply the efficient manifold ranking algorithm to search for carbon stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope(LAMOST) pilot survey,whose performance and robustness are verified comprehensively with four test experiments.Using this algorithm,we find a total of183 carbon stars,and 158 of them are new findings.According to different spectral features,our carbon stars are classified as 58 C-H stars,11 C-H star candidates,56C-R stars,ten C-R star candidates,30 C-N stars,three C-N star candidates,and four C-J stars.There are also ten objects which have no spectral type because of low spectral quality,and a composite spectrum consisting of a white dwarf and a carbon star.Applying the support vector machine algorithm,we obtain the linear optimum classification plane in the J — H versus H — K_s color diagram which can be used to distinguish C-H from C-N stars with their J — H and H — K_s colors.In addition,we identify 18 dwarf carbon stars with their relatively high proper motions,and find three carbon stars with FUV detections likely have optical invisible companions by cross matching with data from the Galaxy Evolution Explorer.In the end,we detect four variable carbon stars with the Northern Sky Variability Survey,the Catalina Sky Survey and the LINEAR variability databases.According to their periods and amplitudes derived by fitting light curves with a sinusoidal function,three of them are likely semiregular variable stars and one is likely a Mira variable star. | Jian-Min Si Yin-Bi Li A-Li Luo Liang-Ping Tu Zhi-Xin Shi Jian-Nan Zhang Peng Wei Gang Zhao Yi-Hong Wu Fu-Chao Wu Yong-Heng Zhao | 2015 | Research in Astronomy and Astrophysics2015，15，10： | 1 |
| 18 | Fiber-optic biosensor employing Alexa-Fluor conjugated antibody for detection of Escherichia coli O157:H7 from ground beef in four hours显示文摘 | Geng T Uknalis J Tu SI | | 0，，08： | 1 |
| 19 | Enzyme-linked immunomagnetic electro- chemical detection of live Escherichia eoli O157:H7 in apple juice显示文摘 | Gehring AG Tu SI | 2005 | J Food Protec2005，68，： | 1 |
| 20 | A combination of heat treatment and pichia guilliermondii prevents cherry tomatospoilage by fungi显示文摘 | Zhao Yan Tu Kang Tu Si Cong | 2010 | International Journal of Food Microbiolo- gy2010，137，1： | 1 |
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