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Your search keyword '"Tang, HuaJun"' showing total 16 results
Start Over Author "Tang, HuaJun" Publication Type Electronic Resources
16 results on '"Tang, HuaJun"'

1. Integrating coarse-resolution images and agricultural statistics to generate sub-pixel crop type maps and reconciled area estimates

Author

Hu, Qiong; Yin, He; Friedl, Mark A.; You, Liangzhi; Li, Zhaoliang; Tang, Huajun; Wu, Wenbin, http://orcid.org/0000-0001-7930-8814 You, Liangzhi, Hu, Qiong; Yin, He; Friedl, Mark A.; You, Liangzhi; Li, Zhaoliang; Tang, Huajun; Wu, Wenbin, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi

Abstract

PR, IFPRI3; ISI; DCA; CRP2; 1 Fostering Climate-Resilient and Sustainable Food Supply, EPTD; PIM, CGIAR Research Program on Policies, Institutions, and Markets (PIM)

Published
2021

4. Global cropping intensity gaps: Increasing food production without cropland expansion

Author

Wu, Wenbin; Yu, Qiangyi; You, Liangzhi; Chen, Kevin Z.; Tang, Huajun; Liu, Jianguo, http://orcid.org/0000-0001-7930-8814 You, Liangzhi; http://orcid.org/0000-0001-7927-4132 Chen, Kevin, Wu, Wenbin; Yu, Qiangyi; You, Liangzhi; Chen, Kevin Z.; Tang, Huajun; Liu, Jianguo, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi; http://orcid.org/0000-0001-7927-4132 Chen, Kevin

Abstract

PR, IFPRI3; ISI; DCA; CRP2; Capacity Strengthening; 1 Fostering Climate-Resilient and Sustainable Food Supply, EPTD; DSGD; PIM, 10 pages, CGIAR Research Programs on Policies, Institutions, and Markets (PIM)

Published
2018

5. A synergy cropland of China by fusing multiple existing maps and statistics

Author

Lu, Miao; Wu, Wenbin; You, Liangzhi; Chen, Di; Zhang, Li; Yang, Peng; Tang, Huajun, http://orcid.org/0000-0001-7930-8814 You, Liangzhi, Lu, Miao; Wu, Wenbin; You, Liangzhi; Chen, Di; Zhang, Li; Yang, Peng; Tang, Huajun, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi

Abstract

PR, IFPRI3; ISI; CRP2; A Ensuring Sustainable food production, EPTD; PIM, CGIAR Research Programs on Policies, Institutions, and Markets (PIM)

Published
2017

6. Assessing the harvested area gap in China

Author

Yu, Qiangyi; Wu, Wenbin; You, Liangzhi; Zhu, Tingju; van Vliet, Jasper; Verburg, Peter H.; Liu, Zhenhuan; Li, Zhengguo; Yang, Peng; Zhou, Qingbo; Tang, Huajun, http://orcid.org/0000-0001-7930-8814 You, Liangzhi; http://orcid.org/0000-0002-6882-3551 Zhu, Tingju, Yu, Qiangyi; Wu, Wenbin; You, Liangzhi; Zhu, Tingju; van Vliet, Jasper; Verburg, Peter H.; Liu, Zhenhuan; Li, Zhengguo; Yang, Peng; Zhou, Qingbo; Tang, Huajun, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi; http://orcid.org/0000-0002-6882-3551 Zhu, Tingju

Abstract

PR, IFPRI3; ISI; CRP2; A Ensuring Sustainable food production; DCA, EPTD; PIM, CGIAR Research Program on Policies, Institutions, and Markets (PIM)

Published
2017

7. Chinese rice production area adaptations to climate changes, 1949–2010

Author

Li, Zhengguo; Liu, Zhenhuan; Anderson, Weston; Yang, Peng; Wu, Wenbin; Tang, Huajun; You, Liangzhi, http://orcid.org/0000-0001-7930-8814 You, Liangzhi, Li, Zhengguo; Liu, Zhenhuan; Anderson, Weston; Yang, Peng; Wu, Wenbin; Tang, Huajun; You, Liangzhi, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi

Abstract

PR, IFPRI3, EPTD

Published
2015

8. Improved global cropland data as an essential ingredient for food security

Author

See, Linda; Fritz, Steffen; You, Liangzhi; Ramankutty, Navin; Herrero, Mario; Justice, Chris; Becker-Reshef, Inbal; Thornton, Philip; Erb, Karlheinz; Gong, Peng; Tang, Huajun; van der Velde, Marijn; Ericksen, Polly; McCallum, Ian; Kraxner, Florian; Obersteiner Michael, http://orcid.org/0000-0001-7930-8814 You, Liangzhi, See, Linda; Fritz, Steffen; You, Liangzhi; Ramankutty, Navin; Herrero, Mario; Justice, Chris; Becker-Reshef, Inbal; Thornton, Philip; Erb, Karlheinz; Gong, Peng; Tang, Huajun; van der Velde, Marijn; Ericksen, Polly; McCallum, Ian; Kraxner, Florian; Obersteiner Michael, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi

Abstract

PR, IFPRI3; ISI; CRP7; CRP2; HarvestChoice, EPTD; PIM, CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS); CGIAR Research Program on Policies, Institutions, and Markets (PIM)

Published
2015

9. Spatio-temporal dynamics of maize cropping system in Northeast China between 1980 and 2010 by using spatial production allocation model

Author

Tan, Jieyang; Yang, Peng; Liu, Zhenhuan; Wu, Wenbin; Zhang, Li; Li, Zhipeng; You, Liangzhi; Tang, Huajun; Li, Zhengguo, http://orcid.org/0000-0001-7930-8814 You, Liangzhi, Tan, Jieyang; Yang, Peng; Liu, Zhenhuan; Wu, Wenbin; Zhang, Li; Li, Zhipeng; You, Liangzhi; Tang, Huajun; Li, Zhengguo, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi

Abstract

PR, IFPRI3; ISI; HarvestChoice, EPTD

Published
2014

10. Spatial-temporal changes of rice area and production in China during 1980-2010 [in Chinese]

Author

Liu, Zhenhuan [刘珍环]; Li, Zhengguo [李正国]; Tang,Pengqin [唐鹏钦]; Li,Zhipeng [李志鹏]; Wu,Wenbin [吴文斌]; Yang,Peng [杨鹏]; You, Liangzhi [游良]; Tang,Huajun [唐华俊], http://orcid.org/0000-0001-7930-8814 You, Liangzhi, Liu, Zhenhuan [刘珍环]; Li, Zhengguo [李正国]; Tang,Pengqin [唐鹏钦]; Li,Zhipeng [李志鹏]; Wu,Wenbin [吴文斌]; Yang,Peng [杨鹏]; You, Liangzhi [游良]; Tang,Huajun [唐华俊], and http://orcid.org/0000-0001-7930-8814 You, Liangzhi

Abstract

Non-PR, IFPRI3, EPTD, 通过综合80年代初以来的农作物面积与产量统计、耕地分布、农业灌溉分布以及作物生长适宜性分布等多源数据,利用基于交叉信息熵原理的作物空间分配模型(Spatial Production Allocation Model,SPAM),获得了我国10km像元尺度的水稻分布信息。在此基础上,重点分析了80年代初以来水稻种植面积与产量的时空变化特征。总体来看,在全国水稻种植区域内发生变化的地区中有超过50%的地区水稻种植面积出现缩减态势,但仍有近70%的地区水稻产量在增加。空间变化来看,种植面积缩减主要发生在东南沿海的广东、福建和浙江等省,而增加主要出现在东北地区的吉林和黑龙江等省,我国水稻种植重心因此向东北方向迁移约230km,产量重心向东北迁移约320km。同时,研究还发现我国水稻种植面积变化对产量增减具有重要影响,其中产量增加表现为面积与非面积因素的共同作用,数据显示种植面积扩展对水稻增产的平均贡献率约54.5%,而在产量减少的区域,面积缩减对减产的贡献率高达80%以上

Published
2013

11. Change analysis of rice area and production in China during the past three decades

Author

Liu, Zhenhuan; Li, Zhengguo; Tang, Pengqin; Li, Zhipeng; Wu, Wenbin; Yang, Peng; You, Liangzhi; Tang, Huajun and Liu, Zhenhuan; Li, Zhengguo; Tang, Pengqin; Li, Zhipeng; Wu, Wenbin; Yang, Peng; You, Liangzhi; Tang, Huajun

Abstract

PR, IFPRI3; ISI; CRP2, EPTD; PIM, CGIAR Research Program on Policies, Institutions, and Markets (PIM)

Published
2013

12. Chinese food security and climate change

Author

Ye, Liming; Tang, Huajun; Wu, Wenbin; Yang, Peng; Nelson, Gerald; Mason-D'Croz, Daniel; Palazzo, Amanda, http://orcid.org/0000-0003-0673-2301 Mason-D'Croz, Daniel, Ye, Liming; Tang, Huajun; Wu, Wenbin; Yang, Peng; Nelson, Gerald; Mason-D'Croz, Daniel; Palazzo, Amanda, and http://orcid.org/0000-0003-0673-2301 Mason-D'Croz, Daniel

Abstract

Non-PR, IFPRI5, EPTD, 56 pages

Published
2013

13. The need for improved maps of global cropland

Author

Fritz, Steffen; See, Linda; You, Liangzhi; Justice, Chris; Becker-Reshef, Inbal; Bydekerke, Lieven; Cumani, Renato; Defourny, Pierre; Erb, Karlheinz; Foley, Jon; Gilliams, Sven; Gong, Peng; Hansen, Matt; Hertel, Thomas; Herold, Martin; Herrero, Mario; Kayitakire, Francois; Latham, John; Leo, Olivier; McCallum, Ian; Obersteiner, Michael; Ramankutty, Navin; Rocha, Jansle; Tang, Huajun; Thornton, Philip; Vancutsem, Christelle; van der Velde, Marijn; Wood, Stanley; Woodcock, Curtis, http://orcid.org/0000-0001-7930-8814 You, Liangzhi, Fritz, Steffen; See, Linda; You, Liangzhi; Justice, Chris; Becker-Reshef, Inbal; Bydekerke, Lieven; Cumani, Renato; Defourny, Pierre; Erb, Karlheinz; Foley, Jon; Gilliams, Sven; Gong, Peng; Hansen, Matt; Hertel, Thomas; Herold, Martin; Herrero, Mario; Kayitakire, Francois; Latham, John; Leo, Olivier; McCallum, Ian; Obersteiner, Michael; Ramankutty, Navin; Rocha, Jansle; Tang, Huajun; Thornton, Philip; Vancutsem, Christelle; van der Velde, Marijn; Wood, Stanley; Woodcock, Curtis, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi

Abstract

PR, IFPRI3; CRP7, EPTD, CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS)

Published
2013

14. Global-scale assessment of potential future risks of food insecurity

Author

Wu, Wenbin; Yang, Peng; Tang, Huajun; You, Liangzhi; Zhou, Qingbo; Chen, Zhongxin; Shibasaki, Ryosuke, http://orcid.org/0000-0001-7930-8814 You, Liangzhi, Wu, Wenbin; Yang, Peng; Tang, Huajun; You, Liangzhi; Zhou, Qingbo; Chen, Zhongxin; Shibasaki, Ryosuke, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi

Abstract

PR, IFPRI3; ISI, EPTD

Published
2011

15. Scenario-based assessment of future food security

Author

Wu, Wenbin; Tang, Huajun; Yang, Peng; You, Liangzhi; Zhou, Qingbo; Chen, Zhongxin; Shibasaki, Ryosuke, http://orcid.org/0000-0001-7930-8814 You, Liangzhi, Wu, Wenbin; Tang, Huajun; Yang, Peng; You, Liangzhi; Zhou, Qingbo; Chen, Zhongxin; Shibasaki, Ryosuke, and http://orcid.org/0000-0001-7930-8814 You, Liangzhi

Abstract

PR, IFPRI3; ISI, EPTD

Published
2011

16. Polymer-Based Multi-Mode Coplanar Asymmetrical Unidirectional Waveguide Modulator for Multi-Wavelength

Author

TEXAS UNIV AT AUSTIN MICROELECTRONICS RESEARCH CENTER, Sun, Degui, Lu, Xuejun, Taboada, John M., Dubinovsky, Michael, Tang, Huajun, TEXAS UNIV AT AUSTIN MICROELECTRONICS RESEARCH CENTER, Sun, Degui, Lu, Xuejun, Taboada, John M., Dubinovsky, Michael, and Tang, Huajun

Abstract

A unidirectional electro-optic modulator based on polymeric highly multi-mode waveguides was constructed using the standard VLSI techniques. A high unidirectional coupling efficiency of 100% Was achieved. A high modulation depth of 99% was also experimentally achieved at 633nm wavelength. The modulator was packaging enhanced by vertically configuring the guiding multi-mode waveguide and the dumping planar waveguide. The device packing density improved by a factor of two. Based on the same configuration, a packaging enhanced polarization-insensitive thermo-optic was also built. The switch operating at wavelengths of 632.8nm and 1.3 micrometers has been demonstrated experimentally with extinction ratios of 21dB and 22dB, respectively. Such devices have an intrinsic wide optical bandwidth due to the large dynamic range of the phase-matching condition implied by the multi-mode waveguides. These devices can be used in optoelectronic interconnects for data communications., Richard Lee, Ray T. Chen.

Published
2000

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