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| 1 | Sources and transportation of suspended matter and sediment in the southern Yellow Sea: Evidence from stable carbon isotopes显示文摘The concentrations of total suspended matter (TSM) and the compositions of organic stable carbon isotopes of TSM and bottom sediments were analyzed to study the sources of TSM and sediments and the transportation processes. For this study, 284 TSM samples and 64 sediment ones taken from 67 stations along 7 transects and in 5 layers were collected in the southern Yellow Sea on the cruise in May, 1998. The main sediment transportation pattern in the southern Yellow Sea was obtained by analyzing the distribution characteristics of TSM concentration and particulate organic carbon δ^13C values. It was confirmed from the pattern that the bottom layer plays a more important role than the surface one in the transportation processes of terrigenous material to the central deep-water area of the southern Yellow Sea. The Yellow Sea circulation is an important control factor in determining the sediment transportation pattern in the southern Yellow Sea. The carbon isotope signals of sedimentary organic matter confirmed that the main material in sediments with high sedimentation rate in the Shandong subaqueous delta originated from the modern Yellow River.The terrigenous sediments in the deep-water area of the southern Yellow Sea are mainly from the abandoned Yellow River and the modern Yellow River, and a small portion of them are from the modern Yangtze material. The amount of terrigenous material from Korean Peninsula and its influence range are relatively limited. The conclusions derived from TSM and stable carbon isotopes were further confirmed by another independent material source tracer--PAHs. | CAIDeling SHIXuefa ZHOUWeijian LIUWeiguo ZhangShufang CAOYunning HANYibing | 2003 | Chinese Science Bulletin2003，48，B06： | 18 |
| 2 | Analysis of carbon isotopes in airborne carbonate and impli-cations for aeolian sources显示文摘Methods were developed to determine the mass ratios of carbon isotopes in trace amounts of aerosol carbon- ate. A Finnigan MAT 252 mass spectrometer fitted with an on-line Kiel device was to determine the C/12C ratio in CO2 13 produced from the carbonate. A study using these methods was conducted to characterize the carbonate carbon isotopes in aerosol samples collected in Xi’an on dusty and normal days during March and April 2002. Results of the study demonstrate that insights into the origin of the dust can be deduced from its isotopic composition. That is, the δ C of 13 carbonate for dust storm samples ranged from ?1.4‰ to ?4.2‰, and this is consistent with sandy materials in dust source regions upwind. In contrast, for non-dusty days δ13C ranged from ?7.5% to ?9.3‰, which is more similar to fine particles emitted from local surface soils. Comparisons of dust storm aerosols with surface soils from source regions and with aerosol samples collected downwind indicate that the δ C values did not change appreciably during long- 13 range transport. Therefore, carbon isotopes have the poten- tial for distinguishing among source materials, and this ap- proach provides a powerful new tool for identifying dust provenance. | CAOJunji WANGYaqiang ZHANGXiaoye Leeshuncheng HoKinfai CAOYunning LIYang | 2004 | Chinese Science Bulletin2004，49，15： | 3 |
| 3 | 显示文摘 | LinLiyi(林丽毅) LiChun(李春) CaoYun(曹贽) KongLizhi(孔立智) ZhaiGuangqun(翟光群) | | 高分子学报0，，： | 1 |
| 4 | The mechanism of enhancement on oral absorption of paclitaxel by N-octyl-O-sulfate chitosan micelles显示文摘 | Ran Mo Xiang Jin Nan Li Caoyun Ju Minjie Sun Can Zhang Qineng Ping | 2011 | Biomaterials2011，，20： | 1 |
| 5 | Reprogrammed siTNFα/neutrophil cytopharmaceuticals targeting inflamed joints for rheumatoid arthritis therapy显示文摘Rheumatoid arthritis(RA)is an autoimmune disease characterized by severe synovial inflammation and cartilage damage.Despite great progress in RA therapy,there still lacks the drugs to completely cure RA patients.Herein,we propose a reprogrammed neutrophil cytopharmaceuticals loading with TNFα-targeting-siRNA(siTNFα)as an alternative anti-inflammatory approach for RA treatment.The loaded siTNFαact as not only the gene therapeutics to inhibit TNFαproduction by macrophages in inflamed synovium,but also the editors to reprogram neutrophils to anti-inflammatory phenotypes.Leveraging the active tendency of neutrophils to inflammation,the reprogrammed siTNFα/neutrophil cytopharmaceuticals(siTNFα/TP/NEs)can rapidly migrate to the inflamed synovium,transfer the loaded siTNFαto macrophages followed by the significant reduction of TNFαexpression,and circumvent the pro-inflammatory activity of neutrophils,thus leading to the alleviated synovial inflammation and improved cartilage protection.Our work provides a promising cytopharmaceutical for RA treatment,and puts forward a living neutrophil-based gene delivery platform. | Yijun Chen Kaiming Li Mengying Jiao Yingshuang Huang Zihao Zhang Lingjing Xue Caoyun Ju Can Zhang | 2023 | Acta Pharmaceutica Sinica B2023，13，2： | 0 |
| 6 | Numerical simulation program of multicomponent ion beam transport from ECR ion source显示文摘In order to research multi-component ion beam transport process and improve transport efficiency, a spe- cial simulating program for ECR beam is becoming more and more necessary. We have developed a program written by Visual Basic to be dedicated to numerical simulation of the highly charged ion beam and to optimization of beam dynamics in transport line. In the program the exchange of electrons between highly charged ions and low charged ions or neutral atoms (residual gas in transport line) is taken into account, adopting classical molecular over-barrier model and Monte Carlo method, so the code can easily give the change of charge state distribution along the trans- mission line. The main advantage of the code is the ability to simultaneously simulate a large quantity of ions with different masses and charge states, and particularly, to simulate the loss of highly charged ions and the increase of low charged ions due to electron exchange in the whole transport process. Some simulations have been done to study the transmission line of LECR3[1] which is an ECR ion source for highly charged ion beam at IMP. Compared with ex- perimental results, the simulations are considered to be successful. | MALei SONGMing-Tao CAOYun ZHAOHong-Wei ZHANGZi-min LIXue-Qian LIJia-Cai | 2004 | Nuclear Science and Techniques2004，15，6： | 0 |
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