|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Fragments of Comet Hyakutake (C/1996 B2)显示文摘Several fragments of Comet Hyakutake were observed in March and April of 1996. This leads to the impression that the splitting of Comet Hyakutake on a small scale occurred frequently. Data analysis points to a rotation period of about 6 2 h if the fragments of April 11 are the condensations within a jet. | Daohan Chen Aidi Zhao Qindi Wu Yi Song Yixin Fan Shousheng Sun Yan Zhang Linan Sun | 1998 | Chinese Science Bulletin1998，43，2： | 0 |
| 2 | FRAGMENTS OF COMET HYAKUTAKE (C/1996 B2)显示文摘Several fragments of Comet Hyakutake were observed in March and April of 1996. This leads to the impression that the splitting of Comet Hyakutake on a small scale occurred frequently. Data analysis points to a rotation period of about 6.2h if the fragments of April 11 are the condensations within a jet. | Chen Daohan 1 Zhao Aidi 1 Wu Oindi 1 Song Yi 1 Fan Yixin 1 Sun Shousheng 2 Zhang Yan 2 Sun Linan 2 (1. Purple Mountain Observatory, Chinese Acadeniy of Sciences, Nanjing 210008) (2. Qingdao Station of Purple Mountain Observatory, Qingdao | 2000 | 中国科学院上海天文台年刊2000，，S1： | 0 |
| 3 | Characteristic chemical profile of Juhe Fang extract with lipid-lowering properties显示文摘Objective:The objective of this study was to verify the lipid-lowering effect of Juhe Fang extract(JHFE)and to determine its characteristic chemical profile in vitro and in vivo.Methods:A hyperlipidemia model was established by feeding mice a high-fat diet(HFD).After treatment for 30 days,serum total cholesterol(TC),triglyceride(TG),high-density lipoprotein cholesterol(HDL-C)and low-density lipoprotein cholesterol(LDL-C)levels were measured with an automatic biochemistry analyzer.The components from JHFE obtained from in vivo and in vitro experiments were investigated using an UPLC-Q Exactive-Orbitrap MS/MS.Results:The TC,TG,and LDL-C in the serum significantly decreased and the HDL-C significantly increased after JHFE treatment.A total of 95 compounds from JHEF including 15 phenolic acids(PA),4 phenylethanoid glycosides(PG),24 flavonoids(F),14 triterpenoids(T),10 diterpenoid glycosides(D),18 alkaloids(A)and 10 others(O)were identified.Trigonelline was discovered for the first time in a herbal medicine of Juhe Fang.Furthermore,68 compounds were identified in vivo including 28 prototype compounds and 40 metabolites.The metabolic characteristics of these components were revealed including identification of new metabolites of 4-hydroxyphenyl ethyl-8-O-[a-L-arabinopyranosyl-(1/6)]-b-D-glucopyranoside(PEG)and lirinidine.A total of 43 components from JHFE were absorbed and/or metabolized.The contribution rate of each type of chemical component from JHFE to its lipidlowering effect from high to low were A,F,PG,PA,D and T.Conclusion:The results of this study showed that JHFE demonstrated a significant lipid-lowering effect in a high-fat diet(HFD)-induced hyperlipidemia mouse model.Specific types of PA,PG,F,D,T and A formed the pharmaceutical architecture of the lipid-lowering effect of JHFE.This study should prove useful for clarifying the components responsible for the lipid-lowering effect of JHFE and provide a basis for precision quality control research. | Jing Kong Lulu Liu Yuanyuan Gao Siyu Chen Linfu Li Yisong Shu Daohan Sun Yanyan Jiang Renbing Shi | 2020 | Journal of Traditional Chinese Medical Sciences2020，7，3： | 0 |
| 4 | Performance Analysis of an Integrated Supercritical CO_(2) Recompression/Absorption Refrigeration/Kalina Cycle Driven by Medium-Temperature Waste Heat显示文摘A novel power and cooling cogeneration system which combines a supercritical CO_(2) recompression cycle(SCRC), an ammonia-water absorption refrigeration cycle(AARC) and a Kalina cycle(KC) is proposed and investigated for the recovery of medium-temperature waste heat. The system is based on energy cascade utilization, and the waste heat can be fully converted through the simultaneous operation of the three sub-cycles. A steady-state mathematical model is built for further performance study of the proposed system. When the exhaust temperature is 505℃, it is shown that under designed conditions the thermal efficiency and exergy efficiency reach 30.74% and 61.55%, respectively. The exergy analysis results show that the main exergy destruction is concentrated in the heat recovery vapor generator(HRVG). Parametric study shows that the compressor inlet pressure, the SCRC pressure ratio, the main compressor and the turbine I inlet temperature, and the AARC generator pressure have significant effects on thermodynamic and economic performance of the combined system. The findings in this study could provide guidance for system design to achieve an efficient utilization of medium-temperature waste heat(e.g., exhaust heat from gas turbine, high-temperature fuel cells and internal combustion engine). | SU Ruizhi YU Zeting WANG Daohan SUN Bo SUN Jia’nan | 2022 | Journal of Thermal Science2022，31，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员