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17篇 您的检索式:作者名="LEI Shaogang"
    题名 作者 年代 出处 被引量
1Spatio-temporal variation of vegetation in an arid and vulnerable coal mining region显示文摘Environmental assessment in an arid coal mining area requires an understanding of the influences of coal mining,the arid climate and ecological remediation.To that end,we selected vegetation as the key environmental factor to observe.Remote sensing approaches to monitoring the spatio-temporal variation of vegetation caused by mining activities,the arid climate and ecological remediation in the Shengdong coal mining area are described.Over a large regional scale it was found that the vegetation was improved as a result of ecological remediation activities.At the local scale,however,the vegetation coverage and soil moisture in the mined areas were slightly lower than those in un-mined areas due to mining subsidence.These differences are partly attributed to ground fissures that injure root systems and increase the depletion of soil moisture.It is recommended that fissures be reduced and filled to lessen their adverse effects on the environment.LEI Shaogang BIAN Zhengfu DANIELS John L HE Xiao 2010Mining Science and Technology2010,20,3:20
2Mechanism of formation of sliding ground fissure in loess hilly areas caused by underground mining显示文摘Based on a shallow-buried coal seam covered with thick loose layers in hilly loess areas of western China,we developed a mechanical model for a mining slope with slope stability analysis, and studied the mechanism of formation and development of a sliding ground fissure by the circular sliding slice method.Moreover, we established a prediction model of a sliding fissure based on a mechanical mechanism,and verified its reliability on face 52,304, an engineering example, situated at Daliuta coal mine of Shendong mining area in western China. The results show that the stress state of a mining slope is changed by its gravity and additional stress from the shallow-buried coal seam and gully terrain. The mining slope is found to be most unstable when the ratio of the down-sliding to anti-sliding force is the maximum, causing local fractures and sliding fissures. The predicted angles for the sliding fissure of face 52,304 on both sides of the slope are found to be 64.2° and 82.4°, which are in agreement with the experimental data.Liu Hui Deng Kazhong Lei Shaogang Bian Zhengfu 2015International Journal of Mining Science and Technology2015,25,4:10
3Spatio-temporal dynamics of vegetation in Jungar Banner of China during 2000–2017显示文摘It is known that the exploitation of opencast coal mines has seriously damaged the environments in the semi-arid areas.Vegetation status can reliably reflect the ecological degeneration and restoration in the opencast mining areas in the semi-arid areas.Long-time series MODIS NDVI data are widely used to simulate the vegetation cover to reflect the disturbance and restoration of local ecosystems.In this study, both qualitative(linear regression method and coefficient of variation(CoV)) and quantitative(spatial buffer analysis, and change amplitude and the rate of change in the average NDVI) analyses were conducted to analyze the spatio-temporal dynamics of vegetation during 2000–2017 in Jungar Banner of Inner Mongolia Autonomous Region, China, at the large(Jungar Banner and three mine groups) and small(three types of functional areas: opencast coal mining excavation areas, reclamation areas and natural areas) scales.The results show that the rates of change in the average NDVI in the reclamation areas(20%–60%) and opencast coal mining excavation areas(10%–20%) were considerably higher than that in the natural areas(<7%).The vegetation in the reclamation areas experienced a trend of increase(3–5 a after reclamation)-decrease(the sixth year of reclamation)-stability.The vegetation in Jungar Banner has a spatial heterogeneity under the influences of mining and reclamation activities.The ratio of vegetation improvement area to vegetation degradation area in the west, southwest and east mine groups during 2000–2017 was 8:1, 20:1 and 33:1, respectively.The regions with the high CoV of NDVI above 0.45 were mainly distributed around the opencast coal mining excavation areas, and the regions with the CoV of NDVI above 0.25 were mostly located in areas with low(28.8%) and medium-low(10.2%) vegetation cover.The average disturbance distances of mining activities on vegetation in the three mine groups(west, southwest and east) were 800, 800 and 1000 m, respectively.The greater the scale of mining, the farther the disturbance distances of mining activities on vegetation.We conclude that vegetation reclamation will certainly compensate for the negative impacts of opencast coal mining activities on vegetation.Sufficient attention should be paid to the proportional allocation of plant species(herbs and shrubs) in the reclamation areas, and the restored vegetation in these areas needs to be protected for more than 6 a.Then, as the repair time increased, the vegetation condition of the reclamation areas would exceed that of the natural areas.LI Xinhui LEI Shaogang CHENG Wei LIU Feng WANG Weizhong 2019Journal of Arid Land2019,11,6:5
4Investigating spatial and temporal variations of soil moisture content in an arid mining area using an improved thermal inertia model显示文摘Mining operations can usually lead to environmental deteriorations. Underground mining activities could cause an extensive decrease in groundwater level and thus a dramatic variation in soil moisture content(SMC). In this study, the spatial and temporal variations of SMC from 2001 to 2015 at two spatial scales(i.e., the Shendong coal mining area and the Daliuta Coal Mine) were analyzed using an improved thermal inertia model with a long-term series of Landsat TM/OLI(TM=Thematic Mapper and OLI=Operational Land Imager) data. Our results show that at large spatial scale(the Shendong coal mining area), underground mining activities had insignificant negative impacts on SMC and that at small spatial scale(the Daliuta Coal Mine), underground mining activities had significant negative impacts on SMC. Trend analysis of SMC demonstrated that areas with decreasing trend of SMC were mainly distributed in the mined area, indicating that underground mining is a primary cause for the drying trend in the mining region in this arid environment.WANG Yuchen BIAN Zhengfu LEI Shaogang ZHANG Yu 2017Journal of Arid Land2017,9,5:5
5The biomarkers of immune dysregulation and inflammation response in Parkinson disease显示文摘Parkinson’s disease(PD)is referring to the multi-systemicα-synucleinopathy with Lewy bodies deposited in midbrain.In ageing,the environmental and genetic factors work together and overactive major histocompatibility complex pathway to regulate immune reactions in central nerve system which resulting in neural degeneration,especially in dopaminergic neurons.As a series of biomarkers,the human leukocyte antigen genes with its related proteomics play cortical roles on the antigen presentation of major histocompatibility complex molecules to stimulate the differentiation of T lymphocytes and i-proteasome activities under their immune response to the PD-related environmental alteration and genetic variation.Furthermore,dopaminergic drugs change the biological characteristic of T lymphatic cells,affect theα-synuclein presentation pathway,and inhibit T lymphatic cells to release cytotoxicity in PD development.Taking together,the serum inflammatory factors and blood T cells are involved in the immune dysregulation of PD and inspected as the potential clinic biomarkers for PD prediction.Li Chen Mingshu Mo Guangning Li Luan Cen Lei Wei Yousheng Xiao Xiang Chen Shaomin Li Xinling Yang Shaogang Qu Pingyi Xu 2016Translational Neurodegeneration2016,5,1:3
6The impact of disposal and treatment of coal mining wastes on environment and farmland显示文摘Zhengfu Bian Jihong Dong Shaogang Lei Hailong Leng Shouguo Mu Hui Wang 2009Environmental Geology2009,,3:1
7The impact of dis-posal and treatment of coal mining wastes on environment and farmland显示文摘BIAN Zhengfu DONG Jihong LEI Shaogang 2009Environmental Geology2009,58,3:1
8The impact of disposal and treatment of coal mining wastes on environment and farmland显示文摘Bian Zhengfu Dong Jihong Lei Shaogang Leng Hailong 2009Environmental Geology2009,58,3:1
9Distribution and fate of nonylphenol in an aquatic microcosm显示文摘Huang Guolan Hou Shaogang Wang Lei 2007Water Res2007,41,20:1
10Survival after radical cystectomy for bladder cancer:Multicenter comparison between minimally invasive and open approaches显示文摘Objective:To investigate oncological outcomes in patients with bladder cancer who underwent minimally invasive radical cystectomy(MIRC)or open radical cystectomy(ORC).Methods:We identified patients with bladder cancer who underwent radical cystectomy(RC)in 13 centers of the Chinese Bladder Cancer Consortium(CBCC).Perioperative outcomes were compared between MIRC and ORC.The influence of surgical approaches on overall survival(OS)and cancer-specific survival(CSS)in the entire study group and subgroups classified according to pathologic stage or lymph node(LN)status was assessed with the log-rank test.Multivariable Cox proportional hazard models were used to evaluate the association among OS,CSS and risk factors of interest.Results:Of 2098 patients who underwent RC,1243 patients underwent MIRC(1087 laparoscopic RC and 156 robotic-assisted RC,respectively),while 855 patients underwent ORC.No significant differences were noted in positive surgical margin rate and 90-day postoperative mortality rate.MIRC was associated with less estimated blood loss,more LN yield,higher rate of neobladder diversion,longer operative time,and longer length of hospital stay.There was no significant difference in OS and CSS according to surgical approaches(pZ0.653,and 0.816,respectively).Subgroup analysis revealed that OS and CSS were not significantly different regardless of the status of extravesical involvement or LN involvement.Multivariable Cox regression analyses showed that the surgical approach was not a significant predictor of OS and CSS.Conclusions:Our study showed that MIRC was comparable to conventional ORC in terms of OS and CSS.Weibin Xie Junming Bi Qiang Wei Ping Han Dongkui Song Lei Shi Dingwei Ye Yijun Shen Xin Gou Weiyang He Shaogang Wang Zheng Liu Jinhai Fan Kaijie Wu Zhiwen Chen Xiaozhou Zhou Chuize Kong Yang Liu Chunxiao Liu Abai Xu Baiye Jin Guanghou Fu Wei Xue Haige Chen Tiejun Pan Zhong Tu Tianxin Lin Jian Huang 2020Asian Journal of Urology2020,7,3:1
11The impact Of disposal and treatment of coal mining wastes on environ- ment and farmland显示文摘Bian zhengfu Dong jihong Lei shaogang et a l 2009Environmental Geology2009,58,3:1
12Integrated method of RS and GPR for monitoring th changes in the soil moisture and groundwater environment due to underground coal mining显示文摘Bian Zhengfu Lei Shaogang Hilary Inyang 2009Environ Geol2009,57,5:1
13Calcium ions promote primary renal epithelial cell differentiation intocells with bone-associated phenotypes via transforming growth factor-β1-inducedepithelial-mesenchymal transition in idiopathic hypercalciuria patients显示文摘Deng He Shaogang Wang Zhaohui Jia Lei Cui Yuchao Lu Henglong Hu Baolong Qin 2015Molecular Medicine Reports2015,,3:1
14The Challenges of Reusing Mining and Mineral-Processing Wastes显示文摘Zhengfu Bian Xiexing Miao Shaogang Lei 2012Science2012,337,6095:1
15Integrated method of RS and GPR for monitoring the changes in the soil moisture and groundwater environment due to underground coal mining显示文摘Bian Zhengfu Lei Shaogang Inyang Hilary I 0,,01:1
16The Ultrafiltration Process Enhances Antibiotic Removal in the Full-Scale Advanced Treatment of Drinking Water显示文摘1.Introduction A considerable proportion(30%–90%)of consumed antibiotics are excreted from organisms after intake,and wastewater treatment facilities lack sufficient capacity to remove antibiotics in water[1].Thus,the issue of antibiotics contamination in drinking water is raising increasing attention.Adverse consequences of antibiotics in drinking water include potential human health risks(e.g.,they may be carcinogenic or provoke allergic reactions)and risks to the aquatic ecology due to the promotion of bacterialresistant genes[2,3].Lingfei Li Yuanxiang Mao Huiyu Dong Yan Wang Lei Xu Shaogang Liu Qian Xu Zhimin Qiang Fangying Ji 2023Engineering2023,,9:0
17Real-world effectiveness and safety of goserelin 10.8-mg depot in Chinese patients with localized or locally advanced prostate cancer显示文摘Objective:Real-word data on long-acting luteinizing hormone-releasing hormone(LHRH)agonists in Chinese patients with prostate cancer are limited.This study aimed to determine the real-world effectiveness and safety of the LHRH agonist,goserelin,particularly the long-acting 10.8-mg depot formulation,and the follow-up patterns among Chinese prostate cancer patients.Methods:This was a multicenter,prospective,observational study in hormone treatment-na?ve patients with localized or locally advanced prostate cancer who were prescribed goserelin 10.8-mg depot every 12 weeks or 3.6-mg depot every 4 weeks with or without an anti-androgen.The patients had follow-up evaluations for 26 weeks.The primary outcome was the effectiveness of goserelin in reducing serum testosterone and prostate-specific antigen(PSA)levels.The secondary outcomes included testosterone and PSA levels,attainment of chemical castration(serum testosterone<50 ng/d L),and goserelin safety.The exploratory outcome was the monitoring pattern for serum testosterone and PSA.All analyses were descriptive.Results:Between September 2017 and December 2019,a total of 294 eligible patients received≥1 dose of goserelin;287 patients(97.6%)were treated with goserelin 10.8-mg depot.At week 24±2,the changes from baseline[standard deviation(95%confidence interval)]in serum testosterone(n=99)and PSA(n=131)were-401.0 ng/d L[308.4 ng/d L(-462.5,-339.5 ng/d L)]and-35.4 ng/m L[104.4 ng/m L(-53.5,-17.4 ng/m L)],respectively.Of 112 evaluable patients,100(90.2%)achieved a serum testosterone level<50 ng/d L.Treatment-emergent adverse events(TEAEs)and severe TEAEs occurred in 37.1%and 10.2%of patients,respectively.The mean testing frequency(standard deviation)was 1.6(1.5)for testosterone and 2.2(1.6)for PSA.Conclusions:Goserelin 10.8-mg depot effectively achieved and maintained castration and was well-tolerated in Chinese patients with localized and locally advanced prostate cancer.Nanhui Chen Zengjun Wang Ming Chen Qi Ma Yi He Yujie Wang Xin Li Mingxing Qiu Lei Shi Shaoxing Zhu Qun Xie Xiuheng Liu Benkang Shi Guowen Lin Weizhong Yang Yongbin Liao Haibin Zhang Shusheng Wang Jiexian Li Shaogang Wang Lijun Dong Hui Chen Jiaju Lu YongyiCheng Xiaoping Zhang Lulin Ma Liqun Zhou He Wang Shen Li Dingwei Ye 2023Cancer Biology & Medicine2023,20,12:0
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