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| 1 | Stable carbon and hydrogen isotopes of gases from the large tight gas fields in China显示文摘By the end of the year 2010,a total of 15 large tight gas fields have been found in China,located in the Ordos,Sichuan,and Tarim basins.The annual production and total reserves of these fields in 2010 were 222.5×108and 28657×108m3,respectively,accounting for 23.5%and 37.3%,respectively,of the total annual production and reserves of natural gases in China.They took a major part of all natural gas production and reserves in China.According to the analyses of 81 gas samples,the stable carbon and hydrogen isotopic compositions of tight gases in China have following characteristics:(1)Plots of 13C1-13C2-13C3,13C1-C1/C2+3and 13C1-13C2demonstrate the coal-derived origin of tight gases in China;(2)For the primary alkane gases,both carbon and hydrogen isotopic values increase with increasing molecular mass,i.e.,13C1<13C2<13C3<13C4and2H1<2H2<2H3;(3)The isotopic differences of 13C2-13C1,13C3-13C1,2H2-2H1and 2H3-2H1decrease with increasing Ro(%)and C1/C1–4;(4)There are seven causes for the carbon and hydrogen isotopic reversal,however,the carbon and hydrogen isotopic reversal of tight gases in China is caused mainly by multiple stages of gas charge and accumulation. | DAI JinXing NI YunYan HU GuoYi HUANG ShiPeng LIAO FengRong YU Cong GONG DeYu WU Wei | 2014 | Science China Earth Sciences2014，57，1： | 17 |
| 2 | Characteristics o{ light hdrocarbons of tight gases and its application in theSu- lige Gasfield, Ordos Basin, China显示文摘 | Yu Cong Gong Deyu Huang Shipeng et a/ | | Energy Exoloration Exploitation0，32，1： | 1 |
| 3 | RuNi Alloy Nanoparticles Encapsulated in Oxygen-Doped Carbon as Bifunctional Catalyst towards Hydrogen Electrocatalysis显示文摘The efficient production and utilization of hydrogen play an important role in the closed loop of energy conversion.It is an urgent need to find low-cost and high-performance replacements for platinum-based catalysts towards hydrogen oxidation reaction(HOR)and hydrogen evolution reaction(HER).Herein,bifunctional RuNi alloy nanoparticles embedded in oxygen-doped carbon were pre-pared via simple annealing of Ru-doped Ni-BTC,the limiting current density of which could reach 2.46 mA/cm^(2)(close to Pt)in 0.1 mol/L KOH for HOR.And the low overpotentials of only 29 mV in 1 mol/L KOH and 62 mV in 0.5 mol/L H_(2)SO_(4) were needed to reach the current density of 10 mA/cm^(2) for HER.The effect of alloying and oxygen-doped graphene contributed to the excellent activity and stability during hydrogen electrocatalysis.This work provides new ideas for the development of novel types of hydrogen electrocatalysts and enriches the application of MOFs in HOR. | Qing Yuan Yang Yang Shipeng Gong Shi Chen Minxue Huang Changlai Wang Huigang Tong Qianwang Chen | 2021 | Chinese Journal of Chemistry2021，39，12： | 0 |
| 4 | Malnutrition as a predictor of prolonged length of hospital stay in patients with gynecologic malignancy: A comparative analysis显示文摘Objective To explore the consistency of the Patient-generated Subjective Global Assessment(PG-SGA)and Nutritional Risk Screening-2002(NRS-2002)for nutritional evaluation of patients with gynecologic malignancy and their predictive effect on the length of hospital stay(LOS).Methods We recruited 147 hospitalized patients with gynecologic malignancy from Nanfang Hospital in 2017.Their nutritional status was assessed using the PG-SGA and NRS-2002.The consistency between the two assessments was compared via the Kappa test.The relationship between malnutrition and LOS was analyzed using crosstabs and Spearman’s correlation.Results The PG-SGA demonstrated that 66.7%and 54.4%of patients scoring≥2 and≥4 were malnourished,respectively.Furthermore,the NRS-2002 indicated that 55.8%of patients were at nutritional risk.Patients with ovarian cancer had a relatively high incidence of malnutrition.However,this was only significant for patients who scored≥4 in the PG-SGA(P=0.001 and P=0.019 for endometrial carcinoma and cervical cancer,respectively).The PG-SGA and NRS-2002 showed good consistency in evaluating the nutritional status of patients with gynecologic malignancy(0.689,0.643 for PG-SGA score≥2,score≥4 and NRS-2002,respectively).Both the scores of PG-SGA and NRS-2002 were positively correlated with LOS.Furthermore,prolonged LOS was higher in patients with malnutrition than in those with adequate nutrition.Conclusion The PG-SGA and NRS-2002 shared a good consistency in evaluating the nutritional status of patients with gynecologic malignancy.Both assessments could be used as predictors of LOS. | Yongning Chen Runrong Li Li Zheng Wenlian Liu Yadi Zhang Shipeng Gong | 2021 | Oncology and Translational Medicine2021，7，6： | 0 |
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