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| 1 | Shear wave velocity-based evaluation and design of stone column improved ground for liquefaction mitigation显示文摘The evaluation and design of stone column improvement ground for liquefaction mitigation is a challenging issue for the state of practice. In this paper, a shear wave velocity-based approach is proposed based on the well-defined correlations of liquefaction resistance(CRR)-shear wave velocity(V_s)-void ratio(e) of sandy soils, and the values of parameters in this approach are recommended for preliminary design purpose when site specific values are not available. The detailed procedures of pre-and post-improvement liquefaction evaluations and stone column design are given. According to this approach, the required level of ground improvement will be met once the target V_s of soil is raised high enough(i.e., no less than the critical velocity) to resist the given earthquake loading according to the CRR-V_s relationship, and then this requirement is transferred to the control of target void ratio(i.e., the critical e) according to the V_s-e relationship. As this approach relies on the densification of the surrounding soil instead of the whole improved ground and is conservative by nature, specific considerations of the densification mechanism and effect are given, and the effects of drainage and reinforcement of stone columns are also discussed. A case study of a thermal power plant in Indonesia is introduced, where the effectiveness of stone column improved ground was evaluated by the proposed V_s-based method and compared with the SPT-based evaluation. This improved ground performed well and experienced no liquefaction during subsequent strong earthquakes. | Zhou Yanguo Sun Zhengbo Chen Jie Chen Yunmin Chen Renpeng | 2017 | Earthquake Engineering and Engineering Vibration2017，16，2： | 7 |
| 2 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | Overexpression of Hdac6 extends reproductive lifespan in mice显示文摘 | Xiaoxi Zhang Jiao Yang Haiying Wang Renpeng Guo Yu Yin Dongdong Zhang Qian Zhang Hua Wang Zhongcheng Zhou Lingyi Chen Jun Zhou Lin Liu | 2017 | Protein & Cell2017，8，5： | 1 |
| 6 | TNF-α inhibits fibrosis and migration of fibroblasts in hypertrophic scar by miR-141-3p显示文摘Hypertrophic scar is a dermal fibroproliferative disease characterized by increased collagen bundles[1].A variety of factors participate in its formation,including inflammation,genetics,growth factors,and cytokines[2-5]. | Renpeng Zhou Chuandong Wang Dongze Lv Yangbai Sun Yimin Liang | 2021 | Acta Biochimica et Biophysica Sinica2021，53，8： | 1 |
| 7 | 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 |
| 8 | Anti-miR-200b promotes wound healing by regulating fibroblast functions in a novel mouse model显示文摘MicroRNA-200b(miR-200b)down-regulation has been found in wound-healing tissues.Fibroblasts are the predom inant cells that orchestrate the production of collagen in w ound healing.However,it is still unclear w hether miR-200b can affect the wound healing by regulating the fibroblasts function.The current rodent wound-healing models are not ideal due to their marked difference in structure compared w ith the human skin.In this study,we dem onstrated that the m urine plantar skin had sim ilar anatomical features to the human skin.Using this model,the gain/loss of-function studies showed that miR-200b caused a significantly delayed w ound healing in vivo.Furthermore,using cell proliferation,m igration and collagen synthesis assays,we found that miR-200b attenuated cell proliferation,m igration and collagen synthesis of fibroblasts,which are critical aspects of w ound healing.miR-200b also decreased the expression of Zeb1.Collectively,we established a new m urine plantar skin model for the investigation of wound healing,and based on it we found that miR-200b affected the wound healing by regulating the biological function of fibroblasts,which provided a new insight for wound healing. | Renpeng Zhou Chen Wang Yimin Liang Xiangqi Li Qingfeng Li | 2019 | Acta Biochimica et Biophysica Sinica2019，51，10： | 0 |
| 9 | Tet酶调控端粒和基因组稳定性的作用和机制显示文摘Tets家族催化5-甲基胞嘧啶转变为5-羟甲基胞嘧啶。在小鼠胚胎干细胞中单独干扰Tet1或/和Tet2,伴随着端粒重组下降,导致端粒长度缩短和基因组稳定性异常。 | Jiao Yang Renpeng Guo Hua Wang Xiaoying Ye Zhongcheng Zhou Jiameng Dan Haiying Wang Peng Gong Wei Deng Yu Yin Shi Qing Mao Lingbo Wang Junjun Ding Jinsong Li David L.Keefe Meelad M.Dawlaty Jianlong Wang Guo Liang Xu 刘林 | 2017 | 科学新闻2017，19，4： | 0 |
| 10 | Abdominoplasty for Patients Who Underwent Surgical Weight Loss:Differences between the Asian and Western Populations and the Associated Controversies显示文摘Abdominal contour deformities pose an aesthetic challenge to patients with massive weight loss.This article reviews the similarities and differences in obesity between the Asian and Western populations.A comprehensive classification system combining the objective description of structural deformities with patients’discomfort or physical function is required to classify the abdominal contour deformities.The authors also proposed several controversial issues,including the classification of abdominal deformities,surgical techniques,and complications,providing an evidence-based review for selecting the appropriate surgical method for Asian patients to achieve satisfying clinical outcomes and avoid complications. | Renpeng ZHOU Xiujun FU Yimin LIANG Chen WANG Yunliang QIAN Danru WANG | 2020 | Chinese Journal Of Plastic and Reconstructive Surgery2020，2，3： | 0 |
| 11 | Single-cell RNA-seq reveals vascular endothelial cellheterogeneity and potential vascular dysfunction inhypertrophic scars显示文摘Hypertrophic scarring is a dermal fibroproliferative disorder characterized by excessive collagen secretion by fibroblasts.To date,most studies have mainly focused on the role of aberrant microRNAs,transcription factors and cytokines in regulating fibroblasts in hypertrophic scars[1].A recent single-cell transcriptome analysis of hypertrophic scars also investigated alterations in fibrotic gene expression in fibroblasts[2]. | Renpeng Zhou Angang Ding Jialin Chen Chen Wang Yimin Liang | 2023 | Acta Biochimica et Biophysica Sinica2023，55，1： | 0 |
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