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| 1 | Present Terrestrial Heat Flow Measurements of the Geothermal Fields in the Chagan Sag of the YingenEjinaqi Basin,Inner Mongolia,China显示文摘Owing to the lack o f terrestrial heat flow data, studying lithospheric thermal structure and geodynamics of the Yingen-Ejinaqi Basin in Inner Mongolia is limited. In this paper, the terrestrial heat flow o f the Chagan sag in the YingenEjinaqi Basin were calculated by 193 system steady-state temperature measurements of 4 wells, and newly measuring 62 rock thermal conductivity and 20 heat production rate data on basis o f the original 107 rock thermal conductivity and 70 heat production data. The results show that the average thermal conductivity and heat production rate are 2.11 ±0.28 W/(m.K) and2.42±0.25 nW/m^3 in the Lower Cretaceous o f the Chagan sag. The average geothermal gradient from the Lower Suhongtu 2 Formation to the Suhongtu 1 Fonnation is 37.6 °C/km, and that o f the Bayingebi 2 Formation is 27.4 °C/km. Meanwhile, the average terrestrial heat flow in the Chagan sag is 70.6 mW/m^2. On the above results, it is clear that there is an obvious negative correlation between the thermal conductivity o f the stratum and its geothermal gradient. Moreover, it reveals that there is a geothermal state between tectonically stable and active areas. This work may provide geothermal parameters for further research o f lithospheric thermal structure and geodynamics in the Chagan sag. | FENG Renpeng ZUO Yinhui YANG Meihua ZHANG Jiong LIU Zhi ZHOU Yongshui HAO Qingqing | 2019 | Acta Geologica Sinica(English Edition)2019，93，2： | 6 |
| 2 | Structural Characterization of Glucan Produced by Lactobacillus sake L-7 from Sausage显示文摘A linear glucan was produced by Lactobacillus sake L-7 isolated from homemade sausage. Cultivation of the strain in Man–Rogosa–Sharpe(MRS) medium containing 50 g/L sucrose yielded 5.3 g/L of purified exopolysaccharide(EPS). The EPS was characterized by gas chromatography(GC), Fourier-transform infrared(FT-IR) spectroscopy, high-performance sizeexclusion chromatography(HPSEC), nuclear magnetic resonance(NMR) spectroscopy, and scanning electron microscopy(SEM). The monosaccharide composition of the EPS was glucose, and its molecular weight was 1 × 10~7 Da. The FT-IR and NMR spectra revealed that the L-7 EPS was a linear glucan with α-(1 → 6) glucosidic bonds. SEM images of the dried EPS revealed a hollow tubular structure. The water solubility index and water holding capacity of L-7 EPS were 96 and 272%, respectively. The results of hydrolysis indicated that L-7 EPS was not susceptible to hydrolysis by physiological barriers and can be used as a soluble dietary fiber with health benefits. All these characteristics suggest that L-7 EPS might have potential applications in the food, cosmetic, and pharmaceutical industries. | Fang Feng Qingqing Zhou Yanfang Yang Fangkun Zhao Renpeng Du Ye Han Zhijiang Zhou | 2019 | Transactions of Tianjin University2019，25，1： | 3 |
| 3 | Isolation, Purification, and Characterization of Exopolysaccharide Produced by Leuconostoc Citreum N21 from Dried Milk Cake显示文摘A strain with high production of exopolysaccharide(EPS) was isolated from dried milk cake(a traditional fermented food from Inner Mongolia). The strain was called N21 and later identified as Leuconostoc citreum( Leu. citreum). The strain was cultured in Man-Rogosa-Sharpe medium containing 50 g/L of sucrose for 48 h at 30 °C and the EPS purified, with a yield of 24.5 g/L. An average molecular weight of 6.07 × 10~6 g/mol was determined by high-performance size-exclusion chromatography. The structure of the purified EPS was investigated through gas chromatography, ~1H and ^(13)C nuclear magnetic resonance spectroscopy, and Fourier transform infrared spectroscopy. The results demonstrated a polysaccharide composed of D-glucopyranose units in a linear chain with consecutive α(1 → 6) linkages. No branching was found in the structure of the exopolysaccharide. The purified EPS showed high water solubility and emulsibility. Based on the thermogravimetric curve, the degradation temperature of the EPS was 308.47 °C, which suggested that the dextran in the study exhibited high thermal stability. The results indicated that Leu. citreum N21 could be widely used to produce linear EPS and that the EPS has potential applications in food science and processing as a food additive. | Yanfang Yang Fang Feng Qingqing Zhou Fangkun Zhao Renpeng Du Zhijiang Zhou Ye Han | 2019 | Transactions of Tianjin University2019，25，2： | 2 |
| 4 | Laparoscopic treatment of patent omphalomesenteric duct:a new surgical approach显示文摘Patent omphalomesenteric duct(POMD)is formed due to the incomplete closure of the duct connecting the distal ileum and the umbilicus during the development of the vitelline duct.The morbidity of POMD is about 1:2000.1 The exposed intestinal mucosa is susceptible to injury and bleeding and can cause many complications such as soft tissue infection and sepsis(figure 1).2 The standard treatment is resection operation.The current surgical methods for the treatment of POMD include laparotomy and laparoscopy assisted with a small incision(figure 2).3–6 All of these methods may affect umbilical appearance.Therefore,we improved the existing surgical method and used the cavity structure of the fistula to treat neonatal POMD by laparoscopic surgery.We believe that this surgical method is a safe and feasible minimally invasive operation. | Chanjuan Zou Bo Li Yong Xiao Guang Xu Renpeng Xia Ming Li Yong Feng Chonggao Zhou | 2023 | World Journal of Pediatric Surgery2023，6，1： | 0 |
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