|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Spatial correlation analysis of sea-bottom backscattering显示文摘The principle of the spatial correlation characteristics of sea-bottom backscattering was expounded.The Kirchhoff model is introduced to simulate sea-bottom backscattering and the spatial correlation is calculated.Some sediment characteristic parameters,such as the ratio of sediment mass density to water mass density,the ratio of sediment sound speed to water sound speed,the attenuation coefficient of sound waves,the strength and exponent of seabottom interface roughness spectrum,are considered while simulating and their influences on spatial correlation are analyzed.By establishing the expressions of the sediment characteristic parameters with the logarithmic sediment grain size,the variation tendency of the spatial correlation versus the logarithmic sediment grain size is obtained.The width of the major lobe of the spatial correlation function narrows as the logarithmic sediment grain size increases.The comparisons between simulated data and in-situ data collected in October 2007 have proven that their spatial correlation function waveforms agree well under the same sediment characteristics. | KUAI Duojie WANG Changhong FENG Lei WANG Yuling QIU Wei YI Huiqin CHEN Long | 2012 | Chinese Journal of Acoustics2012，31，3： | 9 |
| 2 | Environmental Issues of Geothermal Development in Yangbajing, Tibet and the Countermeasures显示文摘The pollution source and pollution state of surface water is respectively assessed with equal-standard-pollution-load index and Nemero index, and the habitans' health is assessed as well by comparison with pre-development of geothermal field. Results show that: 1 ) Three pollutive factors obviously fail to attain the required standards and their order sorted by impact degree is As>F- >S2-. 2) The Nemero index of Donggua cross section of Duilongqu River is 0. 725and the water quality is at mildly-polluted level. 3) In Lhasa River, the Nemero indexes of cross sections affected by geothermal fields are much higher than that of the unaffected one, which shows the present and potential impacts of geothermal development. 4) Much more inhabitants nearby got trichomadesis sickness after geothermal development, which shows that the surface water pollution in this area has threatened the inhabitants' health. In addition, other environmental issues caused by Yangbajing geothermal development are analyzed and some countermeasures are proposed. | LiHui-xia HeXiao-rong HuXian-cai DuoJi | 2003 | Wuhan University Journal of Natural Sciences2003，8，03B： | 3 |
| 3 | A study on cycle slip detection and correction in case of ionospheric scintillation显示文摘 | Shengyue Ji Wu Chen Duojie Weng Zhenjie Wang Xiaoli Ding | 2012 | Advances in Space Research2012，，： | 1 |
| 4 | Online Handwriting Recognition of Tibetan Characters Based on the Statistical Method显示文摘 | Weilan Wang Jianjun Qian Daohui Wang Zhuoma Duojie | 2011 | 通讯和计算机(中英文版)2011，8，3： | 1 |
| 5 | 显示文摘 | LICen Duoji Zhandui etal(李岑 多吉 占堆 等) | 2012 | 中国中药杂志2012，37，13： | 1 |
| 6 | Atomic-level correlation between the electrochemical performance of an oxygen-evolving catalyst and the effects of CeO_(2) functionalization显示文摘Herein,we prepared a bimetallic layered double hydroxide(FeCo LDH)featuring a dandelion-like structure.Anchoring of CeO_(2)onto FeCo LDH produced interfaces between the functionalizing CeO_(2)and the parent LDH.Comparative electrochemical studies were carried out.Onset potential,overpotential,and Tafel slope point to the superior oxygen-evolving performance of CeO_(2)-FeCo LDH with respect to FeCo LDH,therefore,demonstrating the merits of CeO_(2)functionalization.The electronic structures of Fe,Co,and Ce were analyzed by X-ray photoelectron spectroscopy(XPS)and electron energy loss spectroscopy(EELS)from which the increase of Co^(3+)and the concurrent lowering of Ce^(4+)were established.With the use of CeO_(2)-FeCo LDH,accelerated formation at a sizably reduced potential of Co-OOH,one of the key intermediates preceding the release of O_(2)was observed by in situ Raman spectroscopy.We now have the atomic-level and location-specific evidence,the increase of the active Co^(3+)across the interface to correlate the enhanced catalytic performance with CeO_(2)functionalization. | Yanyan Li Wen Luo Duojie Wu Qi Wang Jie Yin Pinxian Xi Yongquan Qu Meng Gu Xinyu Zhang Zhouguang Lu Zhiping Zheng | 2022 | Nano Research2022，15，4： | 1 |
| 7 | Tibetan Buddhist Nuns: Damcho Pema's prostrating pilgrimage to Lhasa显示文摘Introduction This paper^1 tells the stor y of Damcho Pema(dam chos pad ma)~2,a Tibetan Buddhist nun from Hainan Tibetan Autonomous Prefecture in Qinghai Province,and her almost 2000 km prostrating pilgrimage to Lhasa.Before coming to the pilgrimage itself it describes the long road she f irst had to travel to become a nun。 | Lengzhi Duojie | 2017 | China Tibetology2017，，2： | 0 |
| 8 | La_(0.7)Ca_(0.3)MnO_(3-δ):Ag nanocomposite thin films with large temperature coefficient of resistance(TCR)显示文摘In this work, oxygen vacancy-regulated La_(0.7)Ca_(0.3)MnO_(3-δ):Ag (LCMO:A) nanocomposite thin films onLaAlO_(3) (001) substrates were investigated to obtain films with large temperature coefficient of resistance(TCR) values. LCMO:A nanocomposite thin films were synthesized using pulsed laser deposition, andoxygen pressures during film deposition and annealing steps were optimized. As oxygen pressuresincreased, lattice parameter increased from 70 Pa to 100 Pa, Tp increased monotonically from 168 K to282 K, and average Mn^(4+) concentration in the film increased as indicated by X-ray photoemissionspectroscopy data. Record high TCR value of ~37% K^(-1) was achieved in LCMO:A nanocomposite thin filmprepared with optimal oxygen pressures, making this film promising candidate for applications inbolometers. | Fei Jin Duojie Wu Yani Lu Zizhao Pan Meng Gu Hong Wang | 2022 | Journal of Materiomics2022，8，4： | 0 |
| 9 | Study on Quality Standard of Tibetan Medicine Corydalis dasyptera Maxim.显示文摘[Objectives]To establish the quality standard of Tibetan medicine Corydalis dasyptera Maxim.[Methods]According to the research method of drug quality standard in the appendix of 2020 edition of Chinese Pharmacopoeia,8 batches of C.dasyptera Maxim.from different habitats were studied by character identification,microscopic identification and TLC identification.The content of water,total ash,acid-insoluble ash and alcohol-soluble extract was determined,and the content of protopine in medicinal materials was determined by high performance liquid chromatography(HPLC).[Results]The properties and microscopic characteristics of C.dasyptera Maxim.were determined.The TLC characteristic spots of the medicinal materials were clear,the degree of separation was good,and the specificity was strong.Both the test sample and the control sample showed the same yellow-green spots in the corresponding position.It was tentatively determined that the water content of C.dasyptera Maxim.should not exceed 14.0%,the total ash content should not exceed 14.0%,the acid-insoluble ash content should not exceed 3.0%,and the alcohol-soluble extract content should not be less than 18.0%.There was a good linear relationship between the concentration of protopine and the peak area in the range of 16.64-166.40μg·10-3(r=0.9996).The average recovery rate was 98.47%and the RSD was 1.21%(n=6).The content of protopine in 8 batches of C.dasyptera Maxim.was 0.023%-0.093%.[Conclusions]The established quality research method is simple,stable and reliable,and can be used for the quality control of C.dasyptera Maxim. | Yi SHI Yunfeng HAN Xi TANG Jie GAO Lin PAN Yi ZHANG Xianrong LAI Duojie LONGZHU | 2021 | Medicinal Plant2021，12，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员