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| 1 | Synoptic-scale variation of δ^(18)O in summer monsoon rainfall at Lijiang, China显示文摘Based on the daily δ^(18)O data in June―September 2003 at Lijiang and the daily mean NCEP/ NCAR reanalysis data, synoptic-scale variation of δ^(18)O in summer monsoon rainfall was investigated. The 'precipitation amount effect' is obvious for the daily δ^(18)O variation, whereas the 'temperature effect' is insignificant. Alternate occurrences of active phase and break phase of the southwest monsoon probably influence the synoptic-scale δ^(18)O variation prominently. Moreover, the isotopic composition in precipitation during the late monsoon months is presumably influenced significantly by recycling of monsoon precipitation. Both the above factors disturb the 'amount effect' of isotopic variation in the monsoon region. This study also indicates that the synoptic-scale rainfall δ^(18)O variation at Lijiang in summer is domi-nated by the Indian monsoon depression (low pressure) system at large scale. These results are important for further studying the 'amount effect' and reconstructing paleoclimate in the monsoon region. | PANG Hongxi HE Yuanqing LU Aigang ZHAO Jingdong NING Baoying YUAN Lingling SONG Bo | 2006 | Chinese Science Bulletin2006，51，23： | 9 |
| 2 | Effect of Landform on Seasonal Temperature Structures across China in the Past 52 Years显示文摘The data of 160 national meteorological observatory stations including the long-term monthly temperature data in China were analyzed to study the seasonal variation of the spatial temperature structures across China in the past half century. It is found that temperature structures differ between seasons: a latitude temperature pattern in winter and a landform temperature pattern in summer, which indicate that the effect of landform on temperature structure is much stronger in summer than that in winter and the effect of latitudinal temperature is much stronger in winter than that in summer. The mechanisms of the seasonal difference in temperature structures are also discussed in this paper. | LU Aigang PANG Deqian GE Jianping HE Yuanqing PANG Hongxi YUAN Lingling | 2006 | Journal of Mountain Science2006，3，2： | 7 |
| 3 | Origin of summer monsoon rainfall identified by δ^(18)O inprecipitation显示文摘A negative correlation between δ 18O in mon-soon precipitation and f, the ratio of precipitable water in monsoon region to that in water source area, is hypothesized. Using the Rayleigh model, a new method for identifying ori-gin of summer monsoon rainfall is developed based on the hypothesis. In order to validate the method, the isotopic data at New Delhi, a typical station in the southwest monsoon region, and Hong Kong, a typical station in the southeast monsoon region, were collected and analyzed for case studies. The case studies indicate that the water source areas of the monsoon rainfall at the two stations identified by the method are accordant with the general atmosphere circulation pat-terns. The method developed in this paper is significantly important for tracing the origin of summer monsoon pre-cipitation. | PANG Hongxi HE Yuanqing ZHANG Zhonglin LU Aigang GU Juan ZHAO Jingdong | 2005 | Chinese Science Bulletin2005，50，23： | 3 |
| 4 | Impacts of Yulong Mountain Glacier on Tourism in Lijiang显示文摘Yulong 山上的冰河是在丽江的最重要的吸引力之一,云南,中国。但是它不停地由于全球温暖撤退这些年,它肯定在丽江显著地影响地区性的旅游。这研究在在那里的旅游上估计 Yulong 山的冰河撤退的效果。原始资料包括人口分布通过来宾调查被收集,动机,停留时间,;关于到丽江的从旅游者的每个旅游资源的意见,以及关于舞台的点,他们访问了或将访问的问题,他们在他们的访问期间每天花费了多少;他们的访问行为怎么将在冰河将消失的假设之上被改变。这些数据被用来在丽江分析对旅游的冰河的贡献的比例;在地区性的旅游份量上上估计冰河的影响。根据调查,这能被结束四分之三的到丽江的旅游者对 Yulong 山冰河感兴趣,显示冰河为观光旅游者拥有著名呼吁。我们的分析的结果显示出那大约 689,013 ~1 , 508,247 个旅游者,为 19.63 ~4 的财务总数的 2.97 % 3,510,000 个国内旅游者到在 2004 的丽江,不当冰河不在时来到丽江,导致 84,382,508 ~ 的可能的直接经济损失 184,713,011 美金( viz 。700,374,824 ~ 1,533,117,993 RMB ) ;一显著地在吸引力半径减少。 | YUAN Lingling LU Aigang NING Baoying HE Yuanqing | 2006 | Journal of Mountain Science2006，3，1： | 3 |
| 5 | JOINT SPACE-FREQUENCY MULTIUSER SYMBOL DETECTOR FOR MC-CDMA SYSTEM WITH UNIFORM LINEAR ARRAY显示文摘The MultiCarrier Code Division Multiple Access (MC-CDMA) scheme is promising for relieving capacity limit problems of Direct Sequence (DS-) CDMA systems due to serious InterChip Interference (ICI) and MultiUser Interference (MUI) in high-data-rate wireless communication systems. In this paper, the Uniform Linear Array (ULA) is applied to the base station of macrocellular MC-CDMA systems in a frequency-selective fading channel environment. A joint space-frequency multiuser symbol sequence detector is developed for all active users within one macrocell without space-frequency channel estimation. Simultaneously, Directions-Of-Arrivals (DOAs) of all active users can also be estimated. By dividing the ULA into two identical overlapping subarrays, a specific auxiliary matrix is constructed, which includes both symbol sequence and DOA information of all active users. Then, based on the subspace method, performing the eigen decomposition on such auxiliary matrix, the closed-form solution of symbol sequences and DOAs for all active users can be obtained. In comparison with schemes based on channel estimation, our algorithm need not explicitly estimate the space-frequency channel for each active user,so it has lower computation complexity. Extensive computer simulations demonstrate the overall performance of this novel scheme. | Wu Xiaojun Yin Qinye Feng Aigang Zhao Zheng Zhang Jianguo(institute of Information Engineering, Xi’an Jinotong University, Xi’an 710049) | 2002 | Journal of Electronics(China)2002，19，4： | 3 |
| 6 | Impact of Global Warming on Water Resource in Arid Area of Northwest China显示文摘As the unprecedented global warming is under way, the glacier retreat is getting more and more serious. In the inland arid area of Northwest China, due to very scarce precipitation, where there is water, there are oases. And the glacier melt water amounts to 22 % of the total direct supply of the inland river water and is of crucial importance to the survival and development of the oases. In this paper, using both the observed data and the previous research achievements of the glaciers in the inland valley of Northwest China where the oasis depending on the glacier is the only location suitable for human living, the authors describe the glacier retreat trend over the past half century, focusing on discussing the possible impact of the glacier retreat on the melt water runoff that is almost the only water resource efficient to nourish the oases. The authors find that even with increasing amount of water from the glacier with global warming, the water shortage is getting more and more serious and the environment is under a degrading way due to the accelerating economical development. The water shortage is bound to be more serious if the glacier retreat keeps on, especially after the glacier melt water is over its top for the degradedglacier scale. So suggestions are stressed in the end that a new water-saving pattern should be adopted in the area for a sustainable development due to the warming-up induced continuous glacier retreat. | LU Aigang DING Yongjian PANG Hongxi YUAN Lingling HE Yuanqing | 2005 | Journal of Mountain Science2005，2，4： | 3 |
| 7 | Comparisons of stable isotopic fractionation in winter and summer at Baishui Glacier No.1,Mt.Yulong,China显示文摘Based on the data of δ18O in surface snow, snow pits, meltwater and the glacier-fed river water at Baishui Glacier No.1, Mt. Yulong, the isotopic fractionation behaviors in the typical monsoonal temperate glacier system in winter and summer were compared. The results indicate that the isotopic fractionation degree in summer is greater than that in winter, suggesting that the snow/ice melting is more intense in summer. Moreover, whenever it is in winter or summer, from surface snow to meltwater, and to glacier-fed river water, the gradient of δ18O with altitude gradually increases. This shows that the degree of isotopic fractionation gradually strengthens when surface snow is being converted into meltwater and finally into glacial river water, which suggests that the influence of post-depositional processes on δ18O gradient in the monsoonal temperate glacier region differs spatially. | PANG Hongxi HE Yuanqing LU Aigang ZHAO Jingdong NING Baoying YUAN Lingling SONG Bo ZHANG Ningning | 2006 | Journal of Geographical Sciences2006，16，3： | 2 |
| 8 | Stereotactic surgery for refractory epilepsy complicated by mental disorders A retrospective case analysis显示文摘BACKGROUND: Anti-epilepsy and anti-psychosis drugs have traditionally been used in the clinic to treat epilepsy complicated by mental disorders. However, there is still no effective therapy for refractory epilepsy patients suffering from persistent mental disorders. OBJECTIVE: To explore the therapeutic effects of stereotactic multi-element localization and multi-target radiofrequency ablation on patients with refractory primary epilepsy and mental disorders. DESIGN: A retrospective case analysis. SETTING: Department of Neurosurgery, the 454 Hospital of Chinese PLA. PARTICIPANTS: Between June and November 2004, 13 patients with refractory primary epilepsy compli-cated by persistent mental disorders were admitted to the Department of Neurosurgery, the 454 Hospital of Chinese PLA. The patient group consisted of nine males and four females, with an average age of 25 years (range 18-39 years), and a course of disease ranging 3-11 years. Diagnosis of mental disorders was in ac-cordance with Chinese Classification of Mental Disorders. Written informed consent was obtained from all patients and their families, and the treatment protocol was approved by the Ethics Committee of the Hospital. METHODS: Under venous inhalation anesthesia, the disease targets, including bilateral corpus callosum, bilateral amygdala, and bilateral medial septal area, as well as unilateral Forel-H area, were coagulated by RFG-3CF radiofrequency thermocoagulation at 75-80 ℃ for 60-70 seconds. During thermocoagulation, the targets were identified using deep-brain microelectrodes and localized according to electrophysiology and electric resistance values. MAIN OUTCOME MEASURES: One year post-surgery, epileptic seizures were assessed on the basis of the Tan classification, and psychogenic (non-epileptic) seizures were evaluated using a 5-grade system. RESULTS: All enrolled 13 epileptic patients were included in the final analysis. The results of follow-up evaluations demonstrated that epilepsy was well-controlled. In total, nine patients did not experience relapse, and the frequency of seizures was reduced by 75% in two patients, and 50%-74% in another two patients. Psychogenic seizures were ameliorated in 11 cases (class 1, recovery) and improved significantly in two cases (class 2, significant improvement). CONCLUSION: Radiofrequency ablation of bilateral corpus callosum, bilateral amygdala, bilateral medial septal area, and unilateral Forel-H area exhibits certain efficacy in treating epileptic patients suffering from persistent mental disorders. | Yifang Wang Aigang Xu Qifu Tan Zhengwei Wang Dongsheng Jiao Hao Zhu KaidongLiu | 2008 | Neural Regeneration Research2008，3，6： | 2 |
| 9 | Changes of daily climate extremes in southwestern China during 1961–2008显示文摘 | Li Zongxing Yuanqing He Puyu Wang Wilfred H. Theakstone Wenling An Xufeng Wang Aigang Lu Wei Zhang Weihong Cao | 2011 | Global and Planetary Change2011，，： | 2 |
| 10 | Seasonal Variation of Regional Warming - up Structure Across China in the Past Half Century显示文摘 | He Yuanqing Lu Aigang Zhang Zhonglin | | Climate Research0，1，28： | 1 |
| 11 | A Fast Refinement for Adaptice Gaussian Chirplet Decomposition 显示文摘 | Qinye Yin Shie Qian and Aigang Feng | 2002 | IEEE Transactions on Signal Processing2002，50，06： | 1 |
| 12 | A fast refinement for adaptice gaussian chirplet decomposition显示文摘 | Yin Qinye Qian Shie Feng Aigang | 2002 | IEEE Transactions on Signal Processing2002，50，6： | 1 |
| 13 | Regional Summer Temperature Decrease against Global Warming in China, Landform Effect?显示文摘The data of 160 national meteorological observatory(NMO)stations with long-term monthly temperature data for China were analyzed in this study to show the basin-centered summer temperature decrease against global warming in the past half century. The summer and winter isotherm structures of 1950s and 1990s worked out by interpolation show the isotherm structure variations: the isotherm structure generally moves northward in winter, but in summer it is characterized with separate high-temperature and low-temperature centers and the isotherm structure moves inward the centers with global warming, indicating that the temperature in the highland areas increases but that in the lowland areas decreases in the summer of the duration. The possible mechanism of the basin-centered temperature decrease in summer is discussed in this paper. | LU Aigang PANG Deqian HE Yuanqing PANG Hongxi WANG Tianming GE Jianping | 2007 | Journal of Mountain Science2007，4，1： | 1 |
| 14 | A fast refinement for adaptive Gaussian chirplet decomposition 显示文摘 | Yin Qinye Qian Shie Feng Aigang | 2002 | IEEE Tans on Signal Processing2002，50，6： | 1 |
| 15 | , Seasonal Variation of Regional Wanning-up Structure Across China in the Past Half Century显示文摘 | HE Yuanqing LU Aigang ZhANG Zhonglin | 2005 | Climate Research2005，1，28： | 1 |
| 16 | Surgical treatment of recurrent lumbar disc herniation by transforaminal lumbar in- terbody fusion显示文摘 | Zhiming Chen Jie Zhao Aigang Liu J | 2009 | International Orthopaedics(SICOT)2009，33，： | 1 |
| 17 | Seasonal variation of regional warming - up structure across China in the past half century显示文摘 | He Yuanqing Lu Aigang Zhang Zhonglin Panghongxi Zhao Jingdong | 2005 | Climate Research2005，28，： | 1 |
| 18 | A fast refinement for adaptive gaussian chirplet decomposition 显示文摘 | Qinye Yin She Qian Aigang Feng | 2002 | IEEE Trans on Signal Processing2002，，50： | 1 |
| 19 | A feedback adaptive space-time constant modulus algorithm in DS-CDMA multiuser detection显示文摘 | Feng Aigang Wu Xiaojun Yin Qinye | 2001 | IEEE Transaction on Signal Processing2001，54，4： | 1 |
| 20 | 17-β-Estradiol induces heat shock proteins in brain arteries and potentates ischemic heat shock protein induction in glia and neurons显示文摘 | Aigang L Rui QR Joseph C | 2002 | Cereb Blood Flow Metab2002，22，： | 1 |
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