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Crystal modification of rifapentine using different solvents
Kun ZHOU, Jun LI, Jianhong LUO, Dongsheng ZHENG,
《化学科学与工程前沿(英文)》 2010年 第4卷 第1期 页码 65-69 doi: 10.1007/s11705-009-0302-6
关键词: identical scanning calorimetry different comparative dissolution structure modification
Improved dissolution and anti-inflammatory effect of ibuprofen by solid dispersion
null
《医学前沿(英文)》 2012年 第6卷 第2期 页码 195-203 doi: 10.1007/s11684-012-0189-3
The purpose of this study was to improve the dissolution rate and anti-inflammatory effect of ibuprofen by a solid dispersion (SD) method. Initial screening was developed based on drug solubility in carriers in the liquid state to select a suitable water-soluble carrier system for the preparation of SDs. The dissolution of ibuprofen in urea was higher than in PEG4000 or mannitol. Thus, urea was selected as the carrier for the preparation of SDs. SDs were characterized in terms of dissolution, differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectroscopy. Solid dispersion-based (SDBT) and conventional (CT) tablets were prepared by the wet granulation method. The anti-inflammatory effect of SDBT was evaluated using the mouse ear edema test with xylene. In vitro release results indicated that the ibuprofen dissolution rate was improved by the SD. SD characterization results suggested that ibuprofen partly precipitates in crystalline and amorphous forms after SD preparation and that ibuprofen and urea do not interact. SDBT displayed more significant anti-inflammatory effects than CT. The dissolution rate and anti-inflammatory effect of ibuprofen were significantly enhanced by the ibuprofen-urea SD.
关键词: ibuprofen solid dispersion physical mixture dissolution anti-inflammatory effect
Yan ZHAO, Wenjing LU, Jiajun CHEN, Xiangfeng ZHANG, Hongtao WANG
《环境科学与工程前沿(英文)》 2014年 第8卷 第2期 页码 151-161 doi: 10.1007/s11783-013-0607-z
关键词: lignocellulosic waste hydrothermal conversion separate dissolution asynchronous hydrolysis mechanism
《环境科学与工程前沿(英文)》 2022年 第16卷 第12期 doi: 10.1007/s11783-022-1586-8
● nZVI, S-nZVI, and nFeS were systematically compared for Cd(II) removal.
关键词: Nano zero valent iron Sulfided zero valent iron FeS Cd(II) immobilization Fe dissolution
Lin Yang, Wenpeng Li, Junheng Guo, Wei Li, Baoguo Wang, Minqing Zhang, Jinli Zhang
《化学科学与工程前沿(英文)》 2021年 第15卷 第2期 页码 384-398 doi: 10.1007/s11705-020-1928-7
关键词: jet-flow high shear mixer solid particle dissolution power consumption characteristics CFD Simulation
The Development and Comparative Analysis of Engineering Project Management Modes
Ji-wei Zhu,Li-nan Zhou,Ming-yuan Yu,Zhao Zhai
《工程管理前沿(英文)》 2015年 第2卷 第4期 页码 351-358 doi: 10.15302/J-FEM-2015060
关键词: engineering projects management mode comparative analysis development trend
Comparative lipidomic analysis of
Bin QIAO, Hong-Chi TIAN, Ying-Jin YUAN
《化学科学与工程前沿(英文)》 2012年 第6卷 第4期 页码 461-469 doi: 10.1007/s11705-012-1223-3
关键词:
lipidomics
systems biology
phospholipids
stirred-tank
Last Planner System and Scrum: Comparative analysis and suggestions for adjustments
Roshan POUDEL, Borja GARCIA de SOTO, Eder MARTINEZ
《工程管理前沿(英文)》 2020年 第7卷 第3期 页码 359-372 doi: 10.1007/s42524-020-0117-1
关键词: Lean Construction Last Planner System Agile Scrum comparative analysis AEC projects project teams
Layer-like FAU-type zeolites: A comparative view on different preparation routes
Bastian Reiprich, Tobias Weissenberger, Wilhelm Schwieger, Alexandra Inayat
《化学科学与工程前沿(英文)》 2020年 第14卷 第2期 页码 127-142 doi: 10.1007/s11705-019-1883-3
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《医学前沿(英文)》 2015年 第9卷 第3期 页码 356-360 doi: 10.1007/s11684-015-0404-0
Robotic system has been increasingly used in pancreatectomy. However, the effectiveness of this method remains uncertain. This study compared the surgical outcomes between robot-assisted laparoscopic distal pancreatectomy and conventional laparoscopic distal pancreatectomy. During a 15-year period, 35 patients underwent minimally invasive approach of distal pancreatectomy in our center. Seventeen of these patients had robot-assisted laparoscopic approach, and the remaining 18 had conventional laparoscopic approach. Their operative parameters and perioperative outcomes were analyzed retrospectively in a prospective database. The mean operating time in the robotic group (221.4 min) was significantly longer than that in the laparoscopic group (173.6 min) (P = 0.026). Both robotic and conventional laparoscopic groups presented no significant difference in spleen-preservation rate (52.9% vs. 38.9%) (P = 0.505), operative blood loss (100.3 ml vs. 268.3 ml) (P = 0.29), overall morbidity rate (47.1% vs. 38.9%) (P = 0.73), and post-operative hospital stay (11.4 days vs. 14.2 days) (P = 0.46). Both groups also showed no perioperative mortality. Similar outcomes were observed in robotic distal pancreatectomy and conventional laparoscopic approach. However, robotic approach tended to have the advantages of less blood loss and shorter hospital stay. Further studies are necessary to determine the clinical position of robotic distal pancreatectomy.
关键词: distal pancreatectomy pancreatic neoplasm robotic surgery
Oral product input to the GI tract: GIS an oral product performance technology
Gordon L. Amidon, Yasuhiro Tsume
《化学科学与工程前沿(英文)》 2017年 第11卷 第4期 页码 516-520 doi: 10.1007/s11705-017-1658-7
关键词: GIS in vivo predictive dissolution ketoconazole BCS subclassification supersaturation
Zhiqiang XIA,Xin CHEN,Cheng LU,Meiling ZOU,Shujuan WANG,Yang ZHANG,Kun PAN,Xincheng ZHOU,Haiyan WANG,Wenquan WANG
《农业科学与工程前沿(英文)》 2016年 第3卷 第4期 页码 295-307 doi: 10.15302/J-FASE-2016126
关键词: cassava comparative transcriptomics energy transport photosynthesis starch synthesis
The current phosphate recycling situation in China and Germany: a comparative review
null
《农业科学与工程前沿(英文)》 2019年 第6卷 第4期 页码 403-418 doi: 10.15302/J-FASE-2019287
Phosphorus (P) is an indispensable element for organisms but the primary source of P—mineral phosphate resources—are non-renewable. Agricultural production has a high demand for fossil phosphate resources, but the resulting phosphate-rich residues are lack of management. This leads to rapid reserves depletion and severe phosphate pollution risks. One sustainable way is to reuse the phosphate dispersed in various residues such as sewage sludge and livestock manure. Diverse techniques have emerged to recover phosphate from wastes to close the phosphate cycle. While it is a global issue, the regional situations regarding potential phosphate scarcity and its management differ strongly. China is rich in phosphate resources, but over-exploitation has greatly increased the risk of phosphate rocks depletion, while in Germany the P resources depend on imports, but there is commitment to keep a balance between import and utilization. This had led to great differences in the way the two countries deal with the “re-use” of phosphate in waste. China is now in a transition phase from the simple terminal pollution control to “waste” reuse and nutrient resources recycling. One sign of this tendency is the mandatory garbage classification and preparation for further processing and recycling. This was first implemented in Shanghai in 2019, whereas Germany has been following the legal framework for waste management since the 19th century. There are a series of laws to control the nutrient loss from municipal and agricultural activities, as for instance with sewage sludge ordinance and fertilizer legislation. Many of these laws have been newly revised recently. Sewage sludge cannot be directly utilized on farmland as organic fertilizer any more. Alternatively, phosphate and other nutrients should be recovered from sewage sludge. Advanced phosphate recovery technologies and related nutrient recycling schemes are proceeding. This review summarizes the current situation of phosphate-containing residues management and phosphate reuse in China and Germany. The state legislation and policies, which would affect the phosphate recycling concept are presented as well. As there are various kinds of phosphate-containing residues, different phosphate recovery technologies can be applied. Those technologies are discussed from their mechanism and suitability.
关键词: phosphate recovery manure sewage sludge ordinances technologies
余中光,张鹏俊,张知新,王辰
《中国工程科学》 2020年 第22卷 第1期 页码 139-145 doi: 10.15302/J-SSCAE-2020.01.018
医学专业目录设置对于促进医学学科发展、培养合格的医学人才具有重要意义,在高等院校实施一流学科建设的背景下,健全、科学的专业目录显得尤为重要。为助力我国医学学科发展,本文运用文献分析法梳理了我国医学专业设置现状,系统比较了中国、美国、英国的医学专业目录类别与特点。研究发现,当前我国医学专业目录设置存在专业目录不统一、专业设置数量和内容相对滞后、临床医学专业过早专科化、与住院医师规范化培训专业目录衔接不畅等问题;建议采取统一医学专业目录、丰富学科内涵、体现交叉学科特点、建立规范的医学专业准入和退出机制等举措,推进医学专业目录与国际接轨,为培养合格、规范的医学人才提供路径指引。
Modeling of specific structure crystallization coupling with dissolution
Yuanhui JI, Hongliang QIAN, Chang LIU, Xiaohua LU, Xin FENG, Xiaoyan JI,
《化学科学与工程前沿(英文)》 2010年 第4卷 第1期 页码 52-56 doi: 10.1007/s11705-009-0301-7
关键词: structure crystallization activity coefficient reference KCl dissolution
标题 作者 时间 类型 操作
Crystal modification of rifapentine using different solvents
Kun ZHOU, Jun LI, Jianhong LUO, Dongsheng ZHENG,
期刊论文
Research progress on hydrothermal dissolution and hydrolysis of lignocellulose and lignocellulosic waste
Yan ZHAO, Wenjing LU, Jiajun CHEN, Xiangfeng ZHANG, Hongtao WANG
期刊论文
Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles of Fe dissolution
期刊论文
Effects of rotor and stator geometry on dissolution process and power consumption in jet-flow high shear
Lin Yang, Wenpeng Li, Junheng Guo, Wei Li, Baoguo Wang, Minqing Zhang, Jinli Zhang
期刊论文
The Development and Comparative Analysis of Engineering Project Management Modes
Ji-wei Zhu,Li-nan Zhou,Ming-yuan Yu,Zhao Zhai
期刊论文
Last Planner System and Scrum: Comparative analysis and suggestions for adjustments
Roshan POUDEL, Borja GARCIA de SOTO, Eder MARTINEZ
期刊论文
Layer-like FAU-type zeolites: A comparative view on different preparation routes
Bastian Reiprich, Tobias Weissenberger, Wilhelm Schwieger, Alexandra Inayat
期刊论文
Robotic distal pancreatectomy versus conventional laparoscopic distal pancreatectomy: a comparative study
null
期刊论文
Oral product input to the GI tract: GIS an oral product performance technology
Gordon L. Amidon, Yasuhiro Tsume
期刊论文
Comparative transcriptomics revealed enhanced light responses, energy transport and storage in domestication
Zhiqiang XIA,Xin CHEN,Cheng LU,Meiling ZOU,Shujuan WANG,Yang ZHANG,Kun PAN,Xincheng ZHOU,Haiyan WANG,Wenquan WANG
期刊论文