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| 1 | Sustainable Land Management Practices for Rubber Plantations in Mountainous Area of Hainan显示文摘This research was designed to help solve existing sustainable use problems such as soil nutrient loss and soil fertility decline in natural rubber plantations located in the hilly land of the south central mountainous area of Hainan Island, China. Two different land management practices, sustainable and traditional, were adopted in a four-year experiment. Contour terraced fields and deep ditches for green manure were built in a sustainable way with a balanced, need-based application of complex fertilizer. Results of the four-year experiment showed that these sustainable measures compared to traditional measures improved available P and available K; had a 47.8% less soil erosion (an average of 3 663 t km-2 year-1) and a 15.9% lower runoff coefficient of 0.53; increased the dry rubber yield by 42.4%; and improved the economic benefit by 2.4 times. The sustainable land management scheme not only improved land utilisation efficiency, but also helped maintain soil fertility while increasing production in rubber plantations. It thereby offered a reasonable and sustainable use for land resources in the tropical mountainous areas. | CHAZheng-Zao LINZhao-Mu LUOWei LIShi-Cong LUOXue-Hua | 2005 | Pedosphere2005，15，3： | 5 |
| 2 | Spatial distribution of heavy metals of agricultural soils in Dongguan, China显示文摘Distribution and speciation of heavy metals of agricultural soils(85 surface soil samples and 4 soil profiles) in Dongguan were investigated, while total Cr, Cu, Ni, Pb, Zn(abbreviated as Cr, Cu, Ni, Pb, Zn) and available Cu, Zn(Av-Cu, Av-Zn) were analyzed by a flame absorption spectrophotometer(AAS), and total Cd(Cd) was analyzed using graphite furnace AAS. The content of Cd, Cu and Ni was partially much more than the second grade of GB15618-1995 even though the mean contents of all heavy metal were less than the threshold value of the second grade and only the mean content of Pb was more than the value of national background. Results of descriptive statistic showed that the mean content of heavy metals should depend on land utilization and spatial location at some extent. The heavy metal contents were higher in the Southwest and Northwest than in the Central. In addition, the mean contents of Zn and Pb in Dongguan paddy soils were significantly higher than those of Pearl River Delta(PRD) and Taihu Lake region(TLR). Correlation analyses indicated that there existed significant correlation between Cr and Ni in orchard soils, and among Zn, Cd and Cu, between Av-Cu and Cu, between Av-Zn and Cr, Ni, pH value in vegetable soils, and a weak relationship between Cd, Cu and Pb, between Av-Zn and Zn. Principal component analyses(PCA) showed that the order of importance should be Zn>Pb>Cr>Ni>Cu. | XIAYun-sheng LIFang-bai WANHong-fu MAJin YANGGuo-yi ZHANGTian-bin LUOWei | 2004 | Journal of Environmental Sciences2004，16，6： | 4 |
| 3 | Utilization and quality assessment of digestive endoscopy in China:results from 5-year consecutive nationwide surveys显示文摘Background:Worldwide,the volume and availability of digestive endoscopy have undergone dramatic development in recent years,with increasing attention on quality assurance.We investigated the utilization and quality of digestive endoscopy in China from 2015 to 2019 and developed a quantitative quality evaluation tool for medical institutions.Methods:We invited all tertiary/secondary hospitals in Chinese mainland to participate in the survey annually.The questionnaires included the personnel,annual volume,and quality indicators of endoscopy.An endoscopy quality index(EQI)was developed based on recorded quality indicators using principal component analysis to determine the relative weight.Results:From 2015 to 2019,806,1412,2644,2468,and 2541 hospitals were respectively enrolled in this study.The average annual volume of endoscopy increased from 12,445 to 16,206(1.30-fold)and from 2938 to 4255(1.45-fold)in tertiary and secondary hospitals,respectively.The most obvious growth was observed in diagnostic colonoscopy(1.44-fold for all hospitals after standardization).The proportion of early cancer among all esophageal and gastric cancers during diagnostic esophagogastroduodenoscopy increased from 12.3%(55,210/448,861)to 17.7%(85,429/482,647)and from 11.4%(69,411/608,866)to 16.9%(107,192/634,235),respectively.The adenoma detection rate of diagnostic colonoscopy increased from 14.9%(2,118,123/14,215,592)to 19.3%(3,943,203/20,431,104).The EQI model included 12 quality indicators,incorporating 64.9%(7.792/12)of the total variance into one comprehensive index.According to the EQI measurements,the quality of endoscopy was higher in tertiary hospitals and hospitals in developed areas with higher volume or more endoscopists than that in other hospitals.Conclusions:Digestive endoscopy in China has developed considerably in recent years in terms of both volume and quality.The EQI is a promising tool to quantify the quality of endoscopy at different hospitals. | Lei Xin Ye Gao Zhiyuan Cheng Tianjiao Wang Han Lin Yanan Pang Chang Sun Zengjun Fu Zhaoshen Li Xudong Ma Luowei Wang | 2022 | Chinese Medical Journal2022，135，16： | 3 |
| 4 | Cx32 gene mutation associated with X-linked recessive Charcot-Marie-Tooth disease显示文摘The form of Charcot-Marie-Tooth (CMT) neuropathy that maps to Xq13 is X-linked dominant, or X-linked intermediate. Heterozygous females are more mildly affected than hemizygous males. It has been known that this type of CMT is caused by mutations of connexin32 (Cx32) gene. A typical X-linked recessive Charcot-Marie-Tooth Chinese family was analyzed with single strand conformation polymorphism method. A Cx32 gene point mutation, Arg15Gln, in exon 2 was identified in all affected family members, suggesting that this mutation is responsible for the CMT incidence of this family. | TANGBeisha LUOWei ZHAOGuohua XIAOJianfeng LIQi MAYanlin XIAKun YANGQidong | 2003 | Progress in Natural Science:Materials International2003，13，6： | 2 |
| 5 | Unified constant-frequency integration control of active power filter-steady-state and dynamics显示文摘 | Smedley K M Zhou Luowei | 2001 | IEEE Trans Power Electronics2001，16，3： | 1 |
| 6 | Unified constant frequency integration control of active power filters steady -state and dynamics显示文摘 | SMEDLEY K M ZHOU Luowei QIAO Chongming | 2001 | IEEE Trans on Power Electronics2001，16，3： | 1 |
| 7 | Unified Constant-Frequency Integration Control of Active Power Filter-Steady-State and Dynamics显示文摘 | Luowei Zhou Chongming Qiao | 2001 | IEEE Transactions on Power Electronics2001，16，3： | 1 |
| 8 | Unified constant-frequency integration control of active power filters-steady-state and dynamics显示文摘 | Luowei Zhou Chongming Qiao | 2001 | IEEE Transactions on Power Electronics2001，16，3： | 1 |
| 9 | Unified constant-frequency integration control of active power filter: steady-state and dynamics显示文摘 | Smedley K M Luowei Zhou | 2001 | IEEE Trans Power Electronics2001，16，3： | 1 |
| 10 | A novel active power filter based on the least compensation current control method 显示文摘 | ZHOU Luowei LI Zicheng | 2000 | IEEE Trans on Power Electron2000，15，4： | 1 |
| 11 | A Novel active power filter based on the least compensation current control method显示文摘 | Zhou Luowei Li Zicheng | 2000 | IEEE Trans on Power Electronics2000，15，4： | 1 |
| 12 | Vehicle detection using normalized color and edge map 显示文摘 | Tsai Luowei Hsieh Junwei Fan Kuochin | 2007 | IEEE Transactions on Image Processing2007，16，3： | 1 |
| 13 | Unified constant-frequency integration control of active power filter-steady-state and dynamics显示文摘 | Keyue M Smedley Luowei Zhou Chongming Qiao | 2001 | IEEE Transactions on Power Electronics2001，16，3： | 1 |
| 14 | Interleaved non-isolated high step-up DC/DC converter based on the diode-capacitor multiplier显示文摘 | ZHOU Luowei ZHU Binxin LUO Quanming | 2014 | Power Electronics IET2014，7，2： | 1 |
| 15 | A novel active power filter based on the least compensation current control method 显示文摘 | Zhou Luowei Li Zicheng | 2000 | IEEE Trans on Power Electron2000，15，4： | 1 |
| 16 | A novel active power filter based on the least compensation current control method显示文摘 | Luowei Zhou Zicheng Li | 2000 | IEEE Transactions on Power Electron2000，15，4： | 1 |
| 17 | Unified Constant- frequency Integration Control of Active Power Fihers-Steady-state and Dynamics显示文摘 | Smedley K M Zhou Luowei Qiao Chongming | 2001 | IEEE Trans on Power Electronics2001，16，3： | 1 |
| 18 | Unified constant-frequency integration control of active power filter-steady-state and dynamics显示文摘 | Smedley K M Zhou Luowei Qiao Chongming | 2001 | IEEE Trans on Power Electronics2001，16，3： | 1 |
| 19 | A novel active power filter based on the least compensation current control method显示文摘 | ZHOU Luowei LI Zichong | 2000 | IEEE Trans on Power Electron2000，15，4： | 1 |
| 20 | Unified constant frequency integration control of active power filters steady-state and dynamics显示文摘 | SMEDLEY K M ZHOU Luowei QIAO Chongming | 1999 | IEEE Transactions on Power Electronics1999，46，3： | 1 |
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