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In search of infall motion in molecular clumpsⅡ:HCO+(1-0)and HCN(1-0)observations toward a sub-sample of infall candidates

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Research in Astronomy and Astrophysics 2020年第8期20卷 129-142页

作者： Yang Yang Zhi-Bo Jiang Zhi-Wei Chen Shao-Bo Zhang Shu-Ling Yu Yi-ping ao Purple Mountain Observatory Chinese Academy of SciencesNanjing 210008China University of Science and Technology of China Chinese Academy of SciencesHefei 230026China Center astronomy and Space Sciences China Three Gorges UniversityYichang 443002China

Gravitational accretion accumulates the original *** process is crucial for us to understand the initial phases of star *** the specific infall profiles in optically thick and thin lines,we searched the clumps with infall motion from the Milky Way Imaging Scroll Painting(MWISP)CO data in previous *** this study,we selected 133 sources as a sub-sample for further research and *** excitation temperatures of these sources are between 7.0 and 38.5 K,while the H2 column densities are between 10^21 and 10^23 cm^-*** have observed optically thick lines HCO+(1-0)and HCN(1-0)using the DLH 13.7-m telescope,and found 56 sources with a blue profile and no red profile in these two lines,which are likely to have infall motions,with a detection rate of 42%.This suggests that using CO data to restrict the sample can effectively improve the infall detection *** these confirmed infall sources are 43 associated with Class O/I young stellar objects(YSOs),and 13 which are *** 13 sources are probably associated with the sources in the earlier evolutionary *** comparison,the confirmed sources that are associated with Class O/I YSOs have higher excitation temperatures and column densities,while the other sources are colder and have lower column *** infall velocities of the sources that we confirmed are between 10^-1 to 10^0 km s^-1,which is consistent with previous studies.

关键词： stars:formation ISM:kinematics and dynamics ISM:molecules radio lines:ISM

Construction and effectiveness of vomit-free ward

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Frontiers of Nursing 2019年第3期6卷 183-189页

作者： Zhi-Qi Yao Song-Wang Xiao-ping Zhou Yu-Ling Luo Qiang ao Jing-Xia Miao Department of Oncology Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdong 510515China Department of Gynecology Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdong 510515China

Objective:To build a vomit-free ward of scientific and standardized management mode,and to evaluate its clinical effects on preventing nausea and vomiting in patients undergoing ***:A total of 200 patients suffering from nausea and vomiting were randomly selected from the registration system,from which 120 cases were enrolled according to the inclusion and exclusion *** subjects were divided into control group and observation group(60 patients in each).Both of the two groups received routine nursing care,while the treatment group subjects lived in the vomit-free wards where extra nursing interventions were applied to prevent chemotherapy-induced nausea and vomiting(CINV),with constant observation of the frequency and severity of nausea and *** outcomes of the subjects from both the groups as well as nurses’ cognition level of CINV were compared after four chemotherapy ***:The difference in the scoring for the frequency and severity of nausea and vomiting in two groups was statistically significant(P he scores of nurses’ cognition level of CINV were compared between before and after the interventions,and the difference had statistical significance(P he management mode aiming to build vomit-free wards could decrease the incidence of CINV in patients during chemotherapy,and at the same time increased the cognitive level of nursing staff toward CINV,which is of great value in clinical practice and is worthy of further application.

关键词： tumor nausea and vomiting no vomiting ward nursing chemotherapy antiemetic

Ascorbate oxidase electrochemical biosensor based on the biocompatible poly(3,4-ethylenedioxythiophene) matrices for agricultural application in crops

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Chinese Chemical Letters 2012年第2期23卷 221-224页

作者： Yang ping Wen Li Min Lu Dong Li Ming Liu Hao Hua he Jing KunXu Key Lab of Crop Physiology Ecology and Genetic BreedingMinistry of EducationJiangxi Agricultural UniversityNanchang 330045China Jiangxi Key Lab of Organic Chemistry Jiangxi Science and Technology Normal UniversityNanchang 330013China

The vitamin C（VC） in crops was successfully determined using ascorbate oxidase（ao） electrochemical biosensor based on the biocompatible poly（3,4-ethylenedioxythiophene）（PEDOT） matrices,which was easily prepared by one-step electrodeposition technique in ionic liquid *** fabricated biosensor displayed excellent bioelectrocatalytic performance to the oxidation of VC,wide linear range,low detection limit,fast response time,good operational and storage stability,the good results of the determination of VC in vegetable crops indicated that the fabricated biosensor will be a good candidate for the physiological and biochemical studies of crops in near future.

关键词： Biosensor Agricultural application Ionic liquid microemulsions Ascorbate oxidase Poly(3 4-ethyl-enedioxythiophene) Vitamin C

Engineering morphologies of yttrium oxide supported nickel catalysts for hydrogen production

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Rare Metals 2023年第1期42卷 176-188页

作者： Rong-Bin Zhang Zi-ao Tu Shuai Meng Gang Feng Zhang-Hui Lu Ying-Zhi Yu Tomas Ramirez Reina Fei-Yang Hu Xiao-Han Chen Run-ping Ye Key Laboratory of Jiangxi Province for Environment and Energy Catalysis Institute of Applied ChemistrySchool of Chemistry and Chemical EngineeringNanchang UniversityNanchang330031China Chemistry Examination Department Patent OfficeChina National Intellectual Property AdministrationBeijing100088China College of Chemistry and Chemical Engineering Jiangxi Normal UniversityNanchang330022China Department of Chemical and Process Engineering University of SurreyGuildfordGU27XHUK Department of Inorganic Chemistry and Materials Sciences Institute University of Seville-CSICSeville41092Spain

The catalytic performance is highly related to the catalyst ***,a series of Ni nanoparticles supported on Y_(2)O_(3) with different morphologies were successfully synthesized via hydrothermal process screening different pH *** Ni/Y_(2)O_(3)catalysts were applied to efficiently produce CO_(x)-free H2through ammonia *** identify a significant impact of Y_(2)O_(3)supports on nickel nanoclusters sizes and *** experimental results show that Ni/Y11 catalyst achieves 100% ammonia decomposition conversion under a gas hour space velocity(GHSV) of 12,000 ml·h^(-1)·gcat^(-1) and temperature of 650℃.Such a high level of activity over Ni/Y11 catalyst was attributed to a large specific surface area,appropriate alkalinity,and small Ni nanoparticles diameter with high dispersion.

关键词： Ammonia decomposition Hydrogen production Yttrium oxide morphology Ni catalysts Hydrothermal method

Coal petrology and genesis of Jurassic coal in the Ordos Basin,China

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Geoscience Frontiers 2012年第1期3卷 85-95页

作者： Weihua ao Wenhui Huang Chengmin Weng Xiuling Xiao Dameng Liu Xiuyi Tang ping Chen Zhigen Zhao Huan Wan Robert B.Finkelman School of Energy Resources China University of GeosciencesBeijing 100083China Anhui University of Science and Technology HuainanAnhui 232001China The University of Texas at Dallas RichardsonTX 75083-0688USA

Multiple sets of thick coal beds characterized by simple structure and shallow burial depth were developed in the Early and Middle Jurassic strata of the Ordos Basin, northwestern China. The huge reserves of this high quality coal have a high commercial value. We studied the coal＇s petrologic characteristics and its maceral distribution to determine the maceral＇s contribution to generation of oil and gas. The results show that the Jurassic coals in the Ordos Basin have special petrological features because of the Basin＇s unique depo- sitional environment which was mainly a series of high-stand swamps in the upper fluvial system. These petro- graphic features are a result of the development of typical inland lakes where some sand bodies were formed by migrating rivers. After burial, the peat continued to undergo oxidizing conditions, this process generated extensive higher inertinite contents in the coals and the vitrinite components were altered to semi-vitrinite. The macroscopic petrographic types of these Jurassic coals are mainly semi-dull coal, dull coal, semilustrous and lustrous coal. The proportions of semi-dull coal and dull coal are higher in the basin margins, especially in the area near the northern margin. The numbers of semilustrous and lustrous coals increase southwards and towards the central basin. This situation indicates that different coal-forming swamp environments have major controlling effects on the coal components. Another observation is that in the Ordos＇ coal sequences, especially in the lower part, some sandstone beds are thick, up to 20 m with a coarse grain size. The higher fusinite content in the macerals accompanies a higher semi-vitrinite content with more complete and regular plant cell structure. The fusinite structure is clear and well preserved. After burial, the lithology of the roof and floor rocks can continue to affect the evolution of coal petrology. The sand bodies in the roof and floor exhibit good physical conditions so th

关键词： Lower-Middle JurassicCoal-formingenvironment Coal maceral Ordos Basin

ALA对高温胁迫下苜蓿属3个品种叶片生理的影响

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草地学报 2022年第5期30卷 1178-1184页

作者：张鹤敖平星赵雁云南农业大学园林园艺学院云南昆明650201

为探究5-氨基乙酰丙酸(5-aminolevulinic acid,ALA)对苜蓿属(Medicago)植物耐热性的影响,以苜蓿属3个品种盆栽苗为材料、以常温无ALA(CK)和高温胁迫无ALA(heat)为对照,研究不同浓度ALA(5,10,15,20,25 mg·L^(-1))预处理对高温胁迫后叶... 详细信息

为探究5-氨基乙酰丙酸(5-aminolevulinic acid,ALA)对苜蓿属(Medicago)植物耐热性的影响,以苜蓿属3个品种盆栽苗为材料、以常温无ALA(CK)和高温胁迫无ALA(heat)为对照,研究不同浓度ALA(5,10,15,20,25 mg·L^(-1))预处理对高温胁迫后叶片生理的影响。结果表明,42℃高温胁迫后,3个品种叶片的相对电导率和MDA含量显著升高(P品种。以8个生理指标进行隶属函数分析表明,20 mg·L^(-1)ALA预处理对3个品种缓解高温胁迫的效果最好。

关键词： 5-氨基乙酰丙酸苜蓿属植物耐热性叶片生理

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Architectural Colors of Key Cultural Elite Areas in Beijing

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Journal of Landscape Research 2022年第1期14卷 21-27,32页

作者： AN ping JING Shuang ZHANG Zixuan Gao ao School of Architecture and Art North China University of TechnologyBeijing 100144China

Unique natural geographical environment and long-lasting culture and history in Beijing has contributed to its characteristic architectural color styles and cultural connotations,particularly architectural color styles in cultural elite areas are more *** combining natural geography,humanities and history of the city,this paper investigated current architectural color styles in key cultural elite areas,explored the architectural color styles systematically using GIS technology,and proposed suggestions for the protection,so as to better protect and inherit traditional architectural color styles and patterns in local cultural elite areas.

关键词： Color geography Cultural elite area Architectural color GIS Suggestions for protection

Architectural Color of Streets in Cultural Quintessence Area of Dongjiaomin Lane in Beijing City

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Journal of Landscape Research 2022年第3期14卷 43-48页

作者： AN ping ZHANG Zixuan MA Baolin Gao ao School of Architecture and Art North China University of TechnologyBeijing 100144China

Based on the research on architectural color context in cultural quintessence area of Dongjiaomin Lane in Beijing City,the historical causes and changes of architectural color characteristics are *** the investigation on the architectural color status of streets,GIS technology is used to construct architectural color information database for systematic study,and the typical characteristics,main laws and major problems of architectural color of streets are *** social investigation and psychological evaluation,the public’s psychological judgment and demands on architectural color are mastered in a multi-dimensional *** on various conclusions,this paper explores scientific and effective methods for architectural color planning and coordination of streets,and puts forward specific suggestions for color protection planning,with a view to creating a architectural color pattern of streets in cultural quintessence area of Dongjiaomin Lane with overall harmony,perfect order,ancient and modern integration,and distinctive characteristics.

关键词： Beijing Cultural quintessence area Dongjiaomin Lane Architectural color of streets Protection recommendations

Chronic bilateral sleeve fracture of the patellae in a healthy child: a case report

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Chinese Medical Journal 2020年第14期133卷 1744-1746页

作者： Jia-Yi Shao Yu-ping Yang Ying-Fang ao Institute of Sports Medicine Peking University Third HospitalBeijing Key Laboratory of Sports InjuriesBeijing 100191China

To the Editor:Sleeve fracture of the patella is considered as a unique type of patellar injury to the pediatric *** is a special type of avulsion fracture in which the avulsed fragment comprises of a small bony fragment from the patella,accompanied by a large portion of articular cartilage.[1]It makes up approximately half of patellar fracture in children.[2]However,the occurrence of this injury bilaterally is extremely rare and there has been only few reports regarding the treatment and prognosis to this injury during its chronic *** we reported a case of chronic bilateral sleeve fracture of the patellae in a 13-year-old healthy boy,who got injured in a running *** the author’s best knowledge,this is the first case of chronic bilateral sleeve fracture of the patellae in current English literature.

关键词： fracture prognosis bilateral