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Countryside Administration and Programming Management System
Lin, Xiao Quan,Zhang, Dong Hong,Zhang, Hai Ming,Liu, Yu Zeng 대한원격탐사학회 2000 International Symposium on Remote Sensing Vol.16 No.1
In accordance with the practical need to China countryside agricultural planting, land utilizing programming and countryside administrative information management, adopting MIS/GIS and large scaled map, the $quot;Countryside Administration and Programming Management System$quot; realizes the management functions to land resource, planting, land utilizing programming, household and population, family plan, administrative documents, developing programing, statistics analysis, lays goad ground work far using GIS and information Internet technology in countryside administration and producing management.
Lin, Jia,Chen, Hong,Gao, Yang,Cai, Yao,Jin, Jianbo,Etman, Ahmed S.,Kang, Joohoon,Lei, Teng,Lin, Zhenni,Folgueras, Maria C.,Quan, Li Na,Kong, Qiao,Sherburne, Matthew,Asta, Mark,Sun, Junliang,Toney, Mic National Academy of Sciences 2019 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF Vol.116 No.47
<P><B>Significance</B></P><P>Metal halide perovskites attract great interest for a wide range of applications due to their remarkable optoelectronic properties. The development of environmentally friendly halide perovskite materials with various crystal structures and compositions offers unprecedented opportunities to achieve desired properties and applications. In this work, we demonstrated an In-based, charge-ordered all-inorganic halide double perovskite with the composition of Cs<SUB>2</SUB>In(I)In(III)Cl<SUB>6</SUB> synthesized by solid-state reaction. High-pressure optical properties were studied, and a pressure-driven, fully reversible semiconductor–metal phase transition was discovered. This In-based charge-ordered structure may inspire new understanding of halide perovskite as well as provide a platform for future discovery of exotic electronic phenomena such as high-<I>T</I><SUB>C</SUB> superconductivity in halide perovskite compounds.</P><P>Phase transitions in halide perovskites triggered by external stimuli generate significantly different material properties, providing a great opportunity for broad applications. Here, we demonstrate an In-based, charge-ordered (In<SUP>+</SUP>/In<SUP>3+</SUP>) inorganic halide perovskite with the composition of Cs<SUB>2</SUB>In(I)In(III)Cl<SUB>6</SUB> in which a pressure-driven semiconductor-to-metal phase transition exists. The single crystals, synthesized via a solid-state reaction method, crystallize in a distorted perovskite structure with space group <I>I</I>4/<I>m</I> with <I>a</I> = 17.2604(12) Å, <I>c</I> = 11.0113(16) Å if both the strong reflections and superstructures are considered. The supercell was further confirmed by rotation electron diffraction measurement. The pressure-induced semiconductor-to-metal phase transition was demonstrated by high-pressure Raman and absorbance spectroscopies and was consistent with theoretical modeling. This type of charge-ordered inorganic halide perovskite with a pressure-induced semiconductor-to-metal phase transition may inspire a range of potential applications.</P>
Review : Perspective on Peroral Endoscopic Myotomy for Achalasia: Zhongshan Experience
( Quan Lin Li ),( Ping Hong Zhou ) The Editorial Office of Gut and Liver 2015 Gut and Liver Vol.9 No.2
Worldwide, peroral endoscopic myotomy (POEM) has achieved remarkable initial outcomes in the treatment of achalasia. In China, POEM has developed very quickly since the first case was performed in our center in August 2010. With experience, we have successfully performed POEM for special cases (such as pediatric patients, patients with sigmoid-type esophagus, and patients with recurrent symptoms after previous surgery) and have altered our technique to achieve long-term symptom remission and simplify the POEM procedure. These changes include posterior wall incision, full-thickness myotomy, a “push-and-pull” technique for myotomy, and water-jet assisted POEM. In this article, our experiences in POEM are summarized, including changes in technique, applications of the procedure, and the management of possible complications. (Gut Liver, 2015;9:152-158)
Lin-Hu Quan,Jin-Ying Piao,Jin-Woo Min,Ho-Bin Kim,Sang-Rae Kim,Dong-Uk Yang,Deok Chun Yang 고려인삼학회 2011 Journal of Ginseng Research Vol.35 No.3
Ginsenoside Rb<sub>1</sub>is the main component in ginsenosides. It is a protopanaxadiol-type ginsenoside that has a dammarane-type triterpenoid as an aglycone. In this study, ginsenoside Rb<sub>1</sub> was transformed into gypenoside XVII, ginsenoside Rd, ginsenoside F<sub>2</sub> and compound K by glycosidase from Leuconostoc mesenteroides DC102. The optimum time for the conversion was about 72 h at a constant pH of 6.0 to 8.0 and the optimum temperature was about 30℃. Under optimal conditions, ginsenoside Rb<sub>1</sub> was decomposed and converted into compound K by 72 h post-reaction (99%). The enzymatic reaction was analyzed by high-performance liquid chromatography, suggesting the transformation pathway: ginsenoside Rb<sub>1</sub>→gypenoside XVII and ginsenoside Rd→ginsenoside F<sub>2</sub>→compound K.
Lin-Hu Quan,Jin-Ying Piao,Jin-Woo Min,Ho-Bin Kim,Sang-Rae Kim,Dong-Uk Yang,Deok Chun Yang 고려인삼학회 2011 Journal of Ginseng Research Vol.35 No.3
Ginsenoside Rb_1is the main component in ginsenosides. It is a protopanaxadiol-type ginsenoside that has a dammarane-type triterpenoid as an aglycone. In this study, ginsenoside Rb_1 was transformed into gypenoside XVII, ginsenoside Rd, ginsenoside F_2 and compound K by glycosidase from Leuconostoc mesenteroides DC102. The optimum time for the conversion was about 72 h at a constant pH of 6.0 to 8.0 and the optimum temperature was about 30°C. Under optimal conditions, ginsenoside Rb_1was decomposed and converted into compound K by 72 h post-reaction (99%). The enzymatic reaction was analyzed by highperformance liquid chromatography, suggesting the transformation pathway: ginsenoside Rb_1→ gypenoside XVII and ginsenoside Rd→ginsenoside F_2→compound K.
Bioconversion of Ginsenoside Rd into Compound K by Lactobacillus pentosus DC101 Isolated from Kimchi
Lin-Hu Quan,Le-Qin Cheng,Ho-Bin Kim,Ju-Han Kim,Na-Ri Son,Se-Young Kim,Hyun-O Jin,Deok-Chun Yang 고려인삼학회 2010 Journal of Ginseng Research Vol.34 No.4
Ginsenosides are the principal components responsible for the pharmacological and biological activities of ginseng. Ginsenoside Rd was transformed into compound K using cell-free extracts of food microorganisms, with Lactobacillus pentosus DC101 isolated from kimchi (traditional Korean fermented food) used for this conversion. The optimum time for the conversion was about 72 h at a constant pH of 7.0 and an optimum temperature of about 30°C. The transformation products were identified by thin-layer chromatography and high-performance liquid chromatography, and their structures were assigned using nuclear magnetic resonance analysis. Generally, ginsenoside Rd was converted into ginsenoside F2 by 36 h post-reaction. Consequently, over 97% of ginsenoside Rd was decomposed and converted into compound K by 72 h post-reaction. The bioconversion pathway to produce compound K is as follows: ginsenoside Rd→ginsenoside F2→compound K.
Bioconversion of Ginsenoside Rd into Compound K by Lactobacillus pentosus DC101 Isolated from Kimchi
Quan, Lin-Hu,Cheng, Le-Qin,Kim, Ho-Bin,Kim, Ju-Han,Son, Na-Ri,Kim, Se-Young,Jin, Hyun-O,Yang, Deok-Chun The Korean Society of Ginseng 2010 Journal of Ginseng Research Vol.34 No.4
Ginsenosides are the principal components responsible for the pharmacological and biological activities of ginseng. Ginsenoside Rd was transformed into compound K using cell-free extracts of food microorganisms, with Lactobacillus pentosus DC101 isolated from kimchi (traditional Korean fermented food) used for this conversion. The optimum time for the conversion was about 72 h at a constant pH of 7.0 and an optimum temperature of about $30^{\circ}C$. The transformation products were identified by thin-layer chromatography and high-performance liquid chromatography, and their structures were assigned using nuclear magnetic resonance analysis. Generally, ginsenoside Rd was converted into ginsenoside F2 by 36 h post-reaction. Consequently, over 97% of ginsenoside Rd was decomposed and converted into compound K by 72 h post-reaction. The bioconversion pathway to produce compound K is as follows: ginsenoside Rd$\rightarrow$ginsenoside F2$\rightarrow$compound K.
Quan, Lin-Hu,Piao, Jin-Ying,Min, Jin-Woo,Yang, Dong-Uk,Lee, Hee Nyeong,Yang, Deok Chun Sociedade Brasileira de Microbiologia 2011 Brazilian journal of microbiology Vol.42 No.3
<P>About 40 different types of ginsenoside (ginseng saponin), a major pharmacological component of ginseng, have been identified along with their physiological activities. Among these, compound K has been reported to prevent the development of and the metastasis of cancer by blocking the formation of tumors and suppressing the invasion of cancerous cells. In this study, ginsenoside Rb1 was converted into compound K via interaction with the enzyme secreted by β-glucosidase active bacteria, <I>Leuconostoc citreum</I> LH1, extracted from kimchi. The optimum time for the conversion of Rb1 to compound K was about 72 hrs at a constant pH of 6.0 and an optimum temperature of about 30°C. Under optimal conditions, ginsenoside Rb1 was decomposed and converted into compound K by 72 hrs post-reaction (99%). Both TLC and HPLC were used to analyze the enzymatic reaction. Ginsenoside Rb1 was consecutively converted to ginsenoside Rd, F2, and compound K via the hydrolyses of 20-C β-(1 → 6)-glucoside, 3-C β-(1 → 2)-glucoside, and 3-C β-glucose of ginsenoside Rb1.</P>