您当前所在位置: 首页 > 首发论文
筛选条件

时间

领域

全部

电子、通信与自动控制技术(21)

计算机科学技术(20)

数学(18) 显示更多>>

材料科学(14) 物理学(12) 生物学(12) 临床医学(10) 化学(9) 信息科学与系统科学(8) 基础医学(6) 农学(5) 交通运输工程(4) 中医学与中药学(3) 力学(3) 地球科学(3) 畜牧科学、动物医学(3) 管理学(3) 能源科学技术(3) 体育科学(2) 动力与电气工程(2) 机械工程(2) 林学(2) 水利工程(2) 环境科学技术(2) 药学(2) 化学工程(1) 安全科学技术(1) 核科学技术(1) 矿山工程技术(1) 预防医学与卫生学(1) 食品科学技术(1) 冶金工程技术(0) 图书馆、情报与文献学(0) 土木建筑工程(0) 天文学(0) 工程与技术科学基础学科(0) 心理学(0) 教育学(0) 水产学(0) 测绘科学技术(0) 纺织科学技术(0) 经济学(0) 航空航天科学技术(0)

学术评议

实时热搜榜

我的筛选 >
2003-2020 全部
为您找到包含“Doctoral Fund of Ministry of Education of China”的内容共177

HE Ronghai,YE Xiaofei,MA Haile

Bio-oils produced from fast pyrolysis need to be upgraded before application as fuel due to their poor physicochemical properties. In this submission, we probed the potential of continuous ultra-high pressure processing (high pressure homogenization (HPH)) technique in improving physicochemical properties of switchgrass bio-oil. The homogenization pressures for different bio-oil samples were 100, 150, 200, 250, and 300MPa, respectively. The results showed that viscosity of switchgrass bio-oil decreased remarkably to 70% of the original value after homogenization treatment at pressure of 100MPa, and it didn't significantly change when homogenization pressure continued to increase; solid content significantly decreased, and water content, heating value, density, pH value, and ash content of switchgrass bio-oil did not change after HPH. The average molecular weight of switchgrass bio-oil was proved to appreciably decrease after homogenization. And the oil's chemical composition changed. HPH processing remarkably improved switchgrass bio-oil stability. Economic calculation demonstrated the operation cost was only 1.07 US cents/L for bio-oil HPH processing at 100MPa.

2012-12-05

Doctoral Fund of Ministry of Education of China (20093227120012

School of Food and Biological Engineering, Jiangsu University, JiangSu ZhenJiang 212013,Department of Biosystems Engineering and Soil Science, The University of Tennessee, Knoxville, 37996, USA,School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013

#Energy Science and Technology#

0评论(0 分享(0)

HE Ronghai,YE Xiaofei,LIU Lu

Over 400 organic compounds exist in bio-oil, and the analysis of bio-oil physicochemical properties is tedious, time-consuming, and expensive. This study investigated the feasibility of using Fourier Transform Infrared Attenuated Total Reflection (FTIR-ATR) in rapid analysis of bio-oil by using pre-processing technique and principal component analysis (PCA) method to obtain multiple physical and chemical properties of bio-oil. Switchgrass bio-oil samples produced under nine different pyrolysis conditions were used. Pearson correlation analysis shows strong relationship between chemical compounds and between some physical properties. PCA method can well separate bio-oil samples based on their physicochemical properties. Second derivative spectra pretreatment can remarkably eliminate physical effects of bio-oil FTIR spectra, and PCA score plot shows the discrimination in different bio-oil samples. Such a rapid analysis would lead to better quality control in bio-oil production and allow insight for bio-oil upgrading.

2012-12-05

Doctoral Fund of Ministry of Education of China (No. 20093227120012

School of Food and biological Engineering,Jiangsu University, JiangSu ZhenJiang 212013,Department of Biosystems Engineering and Soil Science, The University of Tennessee, Knoxville, 37996, USA,Department of Biosystems Engineering and Soil Science, The University of Tennessee, Knoxville, 37996, USA

#Energy Science and Technology#

0评论(0 分享(0)

Liu Yi,Ye Xiaoying,Mao Lina,Cheng Zhaokang,Yao Xinpeng,Jia Xiaohua,Mao Duo,Ou Lailiang,Li Zongjin,Che Yongzhe,Liu Na,Liu Lin,Kong Deling

Aims: Parthenogenetic embryonic stem cells (pESCs) are derived from artificially activated oocytes without fertilization and therefore raise minimal ethical concerns and may serve as attractive candidates for regenerative medicine. We thought to investigate whether pESCs can repair myocardial infarction (MI). Methods and Results: Mice (n=89) survived coronary ligation randomly received undifferentiated pESCs, ESCs, or saline. Sham-operated mice received no treatment (n=21). After 7 days, pESCs transplantation promoted pro-angiogenic factors secretion and reduced infiltrated leukocytes. pESCs-treated hearts, superior to ESC group, showed prevented cardiac remodeling and enhanced angiogenesis in and 30 days post MI. Heart contractile function was notably improved by administration of pESCs by 30 days. Moreover, tissues regenerated from the engrafted pESCs in the infarcted myocardium were positive for cardiomyocyte, endothelial cell and smooth muscle cell markers. Furthermore, teratoma fomation appeared in ESCs-treated mice in high proportion (6/34), but surprisingly not found in pESCs-treated mice (0/30) by 30 days. Conclusions: Cardiac dysfunction and adverse ventricular remodeling post MI were attenuated by pESCs transplantation, which may represent an effective and relatively safer strategy for autologous cell therapy in females.

2012-12-21

Doctoral Fund of Ministry of Education of China (20090031110024

State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, TianJin 300071,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, Chinese Academy of Medical Sciences & Peking Union Medical College, Institute of Biomedical Engineering, Tianjin 300192,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,State Key Labor

#Basic Medicine#

0评论(0 分享(0)

Jia Xiaohua,Lv He,Li Chen,Feng Guowei,Yao Xinpeng,Mao Lina,Ke Tingyu,Che Yongzhe,Xv Yong,Li Zongjin,Kong Deling

Endothelial cell therapy has been implicated to enhance tissue regeneration and vascularization in ischemic kidney. However, no published study has yet examined direct effects of endothelial cell treatment in kidney recovery. This study investigated the therapeutic efficacy of endothelial cells in a mouse model with acute kidney injury (AKI). Thus, human embryonic stem cells-derived endothelial cells (hESC-ECs) labeled with a reporter system encoding a double fusion reporter gene for firefly luciferase (Fluc) and green fluorescent protein (GFP) were characterized by Fluc imaging and immunofluoresence staining. Cultured hESC-ECs (1×106) were injected into ischemic kidney shortly after AKI. Survival of the transplanted hESC-ECs was monitored in vivo from day 1 to 14 after endothelial cell transplantation and potential impact of hESC-EC treatment on renal regeneration was assessed by histological analyses. We report that a substantial level of bioluminescence activity was detected 24 hours after hESC-EC injection followed by a gradual decline from day 1 to 14. Human ESC-ECs markedly accelerated kidney cell proliferation in response to ischaemia-induced damage, indicated by an elevated number of BrdU+ cells. Co-expression of Sca-1, a kidney stem cell proliferation marker, and BrdU further suggested that the observed stimulation in renal cell regeneration was, at least in part, due to increased proliferation of renal resident stem cells especially within the medullary cords and arteriole. Differentiation of hESC-ECs to smooth muscle cells was also observed at an early stage of kidney recovery. In summary, our results suggest that endothelial cell therapy facilitates kidney recovery by promoting vascularization, trans-differentiation and endogenous renal stem cell proliferation in AKI.

2012-12-27

Doctoral Fund of Ministry of Education of China (20090031110024

the Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,College of Basic Medicine, Yanbian University, Yanji, Jilin 133000,Diabetes Research Group, King's College London, UK,Department of Urology, Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300071,the Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,the Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,the Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,the Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,Department of Urology, Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300071,the Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071,the Key Laboratory of Bioactive Materials, Ministry of Education, Nankai Uni

#Biology#

0评论(0 分享(0)

GUO Chaowei,REN Qingwei

We report a scraping-induced surface modification method to produce superhydrophobicity. The proposed method allows easy large-scale manufacturing of surface superhydrophobicity. Experimental contact angles on seven polymer surfaces were reported. The largest water contact angle was found to be 160.0 on manufactured rough PTFE surfaces. Numerical simulations by means of a lattice Boltzmann method were also performed to examine the effect of trapped air on the wettability or superhydrophobicity. We found that contact angle increases with the amount of trapped air at the solid-liquid interface, in general agreement with experimental results.

2012-12-28

Doctoral Fund of Ministry of Education of China(No.20090201120011

School of Materials Science and Engineering, Xi\'an Jiaotong University, Xi\'an 710049,State Key Labortary for Mechnical Behavior of Metals, Xi\'an 710049

#Chemistry#

0评论(0 分享(0)

ZHAO Weiwei,ZHANG Chunwei,YONG Guoqing,HUANG Peng,BI Kedong,CHEN Yunfei,NI Zhenhua

Graphene defects have played an important role in graphene's electrical, optical and thermal properties. In this work, we measured the interface thermal conductance of Al/graphene with different defect situations/silica using transient thermoreflectance technique. We use the graphene thermal stability of being annealed in different temperatures to manipulate the graphene defects. The transient thermoreflectance technique measurement results suggest that as graphene defects increase, the interface thermal conductance increases as well. The cause of the interface thermal conductance increase might be the graphene disintegration which starts from graphene imperfection rings and the oxygen doping which will enhance the metal-graphene bonding energy.

2013-01-10

Doctoral Fund of Ministry of Education of China (20090092120004

School of Mechanical Engineering, Southeast University, Nanjing 211189,School of Mechanical Engineering, Southeast University, Nanjing, 211189,School of Mechanical Engineering, Southeast University, Nanjing, 211189,School of Mechanical Engineering, Southeast University, Nanjing, 211189,School of Mechanical Engineering, Southeast University, Nanjing, 211189,School of Mechanical Engineering, Southeast University, Nanjing, 211189,Department of Physics, Southeast University, Nanjing, 211189

#Dynamic and Electronic Engineering#

0评论(0 分享(0)

PENG Xin,ZHOU Hongwei,DENG Guanhua,JIANG Yunxia,WANG Yu,ZHANG Guoxia

High cost-efficiency and throughput are major advantages for determining metagenomic 16S rRNA tag sequences using next generation sequencing (NGS) techniques. These methods have significantly changed our view of microorganisms in fields of human health and environmental science. However, DNA extraction using commercial kits has become the major bottleneck because of its high cost and time consuming shortcomings. In the present study, we evaluated the determination of fecal microbiome using a direct boiling method compared to 5 different kinds of commercial methods, e.g. Qiagen and MO BIO kits. The PCoA analysis using UniFrac distances and the clustering result showed that direct boiling with a wide range of feces concentration had similar bacterial communities to most of the commercial kits, except the MO BIO method. The fecal concentration for boiling affected the estimation of α-diversity indices, but the results were generally comparable for boiling and commercial methods. The OTUs determined by direct boiling showed highly consistent frequencies with those determined by most of the commercial methods. Even for the MO BIO kit with an obviously different community structure, most of the OTUs determined at high to medium levels by the MO BIO kit were also determined in the direct boiling results with high confidences. Our present study suggested that direct boiling could be used to determine the fecal microbiome, and would significantly reduce the cost and improve the efficiency of the sample preparation for studying gut microbiome diversity.an)

2013-01-23

Doctoral Fund of Ministry of Education of China(20094433120017

Department of Environmental Health, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, Guangdong, China,510515,Department of Environmental Health, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, Guangdong, China,510515,Department of Environmental Health, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, Guangdong, China,510515,Department of Environmental Health, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, Guangdong, China,510515,Department of Environmental Health, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, Guangdong, China,510515,Department of Environmental Health, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, Guangdong, China,510515

#Basic Medicine#

0评论(0 分享(0)

Xin Hong,Bao Guangzhi,Wang Minjun,Zhu Yizhun

Loss of myocardial cells via apoptosis has been characterized in ischemic heart disease. BH3-only proteins of Bcl-2 family are essential initiators of apoptosis during heart ischemia and hypoxia. Multiple BH3-only proteins, such as Bnip3, Nix, Puma, Bid and Bad, have been upregulated and shown to contribute to the cell death via apoptosis pathway during myocardial ischemia. Autophagic flux is activated in ischemic heart disease due to the short supply of nutrients. BH3-only proteins also control the initiation of autophagy which is another important pathway regulating cell survival and death. A novel BH3-only protein, beclin-1, plays a critical role in autophagy. Autophagy functions as cardioprotective pathway to overcome the stress through against apoptosis, but prolonged activation can result in cell death. Here we review the roles of BH-3 only proteins in myocardial ischemia.

2013-01-17

Doctoral Fund of Ministry of Education of China (20090071120065

School of Pharmacy, Fudan University, ShangHai 201203,School of Pharmacy, Fudan University, Shanghai 201203,School of Pharmacy, Fudan University, Shanghai 201203,School of Pharmacy, Fudan University, Shanghai 201203

#Basic Medicine#

0评论(0 分享(0)

YANG Ganglong,LI Zheng

Magnetic particles have been developed for various applications in the biological and clinical determination. In this study, we synthesized the epoxy-activated magnetic particles to immobilization the lectins. The epoxy-activated magnetic particles were the superparamagnetic supports with a specific surface area of 96.29 m2/g. The each gram of the magnetic particles can be saturated with 186.31±5.16 mg Con A. The lectin-magnetic particle conjugates can isolate glycoproteins specially via the lectin's carbohydrate recognition domain with well reproducibility. This method can be a good tool to be applied in the glycoproteomics research.

2013-01-23

Doctoral Fund of Ministry of Education of China (Grant No. 20106101110012

Laboratory for Functional Glycomics, Life Science School, Northwest University, Xi\'an 710069,Laboratory for Functional Glycomics, Life Science School, Northwest University, Xi'an 710069

#Biology#

0评论(0 分享(0)

WANG Mingyue,SHUAI Sansan,JING Tao

Magnesium alloys have the attractive combination of lightweight and strength. An understanding of solidification microstructures in these materials is important. An accurate means of quantifying microstructure in 3D is extremely important. Here we have used serial polishing and synchrotron-based X-ray tomography technique as a means of 3D characterization of the solidified microstructures of magnesium-based alloys. These models were also used to conduct quantitative analysis in 3D. The phase fraction and morphologies of α-Mg matrix phase were obtained. The phase fraction of β-Mg17Al12 is consistent with measurements in the literature and calculations based on the Scheil-Gulliver solidification model. Our 3D reconstructions also show that the dendrite morphology has six-fold symmetry. The results of 3D microstructural characterization and analysis will enable a comprehensive understanding of solidification variables, microstructure, and properties.

2013-02-06

Doctoral Fund of Ministry of Education of China(No. 20090002110031

0

Department of Mechanical Engineering, Tsinghua University, Beijing 100084,Department of Mechanical Engineering, Tsinghua University, Beijing 100084,Department of Mechanical Engineering, Tsinghua University, Beijing 100084

#Materials Science#

0评论(0 分享(0)