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Several basic problems in plastic theory of geomaterials

Yuanxue LIU, Jiawu ZHOU, Zhongyou LI, Chen CHEN, Yingren ZHENG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 81-84 doi: 10.1007/s11709-009-0016-3

Abstract: basic mechanical properties of geomaterials, it was proven that the Drucker Postulate and the classical theoryMoreover, several basic problems of plastic theory of geomaterials were discussed.Based on the strict theoretical analysis, the following have been proven: the single yield surface modelflow is applied or not; the yield surface of geomaterials is not unique, and its number is the sameas the freedoms of plastic strain increment; the yield surface is not convex; and the rule of associated

Keywords： constitutive relation     geomaterials     classial plastic theory     Drucker Postulate     yield surface     flow rule    

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Intensity Theory and Test Verification

Liu Dabin,Han Wenba,Cai Bingqing and Han Xiaodong

Strategic Study of CAE 2007, Volume 9, Issue 12,   Pages 44-52

Abstract: It is shown that the new balance particle intensity theory is more coincident with the test results thanother five intensity theory.The particle balance intensity theory clarifies the misunderstanding that if the equivalent stress isThe balance particle intensity theory figures out a contrary conclusion with the third intensity theoryand fourth intensity theory.

Keywords： intensity theory     test results     yield     stress state    

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The Rion-Antirion bridge—when a dream becomes reality

Jacques COMBAULT

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4,   Pages 415-426 doi: 10.1007/s11709-011-0130-x

Abstract: Opened to traffic in August 2004, the Rion-Antirion Bridge crosses the Gulf of Corinth near Patras in western Greece. It consists of an impressive multi cable-stayed span bridge connected to the land by two approaches. An exceptional combination of physical conditions made this project quite unusual: high water depth, deep strata of weak soil, strong seismic activity and fault displacements. In addition a risk of heavy ship collision had to be taken into account. The structure has been designed in view of challenging severe earthquakes and ensuring the everyday serviceability of the link as well. To make the bridge feasible, innovative techniques had to be developed: The strength of the in situ soil has been improved by means of inclusions; the bridge deck has been suspended on its full length, and therefore isolated as much as it can be.

Keywords： bridge     multi cable-stayed spans     soil reinforcement     inclusions     yield theory     capacity design     push-over    

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PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4, doi: 10.15302/J-FASE -2020355

Abstract: Here, we investigate current maize production at the field scale, analyze the yield gaps and impactingfactors, and recommend measures for sustainably closing yield gaps.The relative yield reached 70% in both years.Yield variability under drip irrigation was 12.1%, lower than the 18.8% under border irrigation.the yield-limiting factors.

Keywords： boundary line analysis     irrigation method     precision agriculture     spatial variability     yield gaps     yield-limiting factors    

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The effect of conservation tillage on crop yield in China

Hongwen LI,Jin HE,Huanwen GAO,Ying CHEN,Zhiqiang ZHANG

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 2,   Pages 179-185 doi: 10.15302/J-FASE-2015058

Abstract: the Conservation Tillage Research Center (CTRC), Chinese Ministry of Agriculture (MOA), the mean crop yieldCrop yield increase was particularly significant in dryland areas and drought years.The mechanism for the yield increase in CT system can be attributed to enhanced soil water content and

Keywords： conservation tillage     crop yield     soil structure     development strategies    

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Breeding strategies for increasing yield potential in super hybrid rice

Shihua CHENG,Xiaodeng ZHAN,Liyong CAO

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 277-282 doi: 10.15302/J-FASE-2015081

Abstract: To develop super hybrid rice, considerable effort should be made to explore genes related with high yield

Keywords： super hybrid rice     breeding strategies     yield potential    

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Highlight yield forming and innovative technologies in tropical crops

Wenquan WANG

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 4,   Pages 283-284 doi: 10.15302/J-FASE-2016128

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YIELD AND FRUIT QUALITY OF ALMOND, PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 583-593 doi: 10.15302/J-FASE -2020325

Abstract: Yield and fruit quality traits were determined. The effect of RDI differed between species.Yield and fruit size were reduced significantly only in peach under RDI-50.25% in peach and 50% in almond and plum with improvements in fruit quality without affecting total yield

Keywords： fruit quality / fruit yield / Prunus domestica / Prunus dulcis / Prunus persica / regulated deficit irrigation    

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Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages

Kailou LIU,Yazhen LI,Huiwen HU

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 2,   Pages 150-157 doi: 10.15302/J-FASE-2014028

Abstract: The results showed that the grain yield increased significantly when urea was applied with NBPT, withthe highest yield observed at 1.00% NBPT (wt/wt).Rice yield could be predicted from the NDVI taken at key rice growing stages, with ranging from 0.34Therefore, it was feasible to estimate rice yield for different amounts of urease inhibitor using NDVI

Keywords： normalized difference vegetation index (NDVI)     N-(n-butyl) thiophosphoric triamide (NBPT)     rice     grain yield    

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Lodging resistance and yield potential of winter wheat: effect of planting density and genotype

Yonggui XIAO,Jianjun LIU,Haosheng LI,Xinyou CAO,Xianchun XIA,Zhonghu HE

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 2,   Pages 168-178 doi: 10.15302/J-FASE-2015061

Abstract: Improved lodging resistance is important for achieving high yield in irrigated environments.At the higher density, the average grain yield was 2.6% higher, even though lodging score rose by asCultivars carrying high plant density tolerance and high yield potential, such as Jimai 22 and Liangxingrecommended as leading cultivars for production as well as elite crossing parents for further increasing yield

Keywords： common wheat     yield potential     lodging performance     pushing resistance     leaf area index    

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Relationship between the number of tapping-induced secondary laticifer lines and rubber yield among

Yueyi CHEN,Xinsheng GAO,Xiaofei ZHANG,Weimin TIAN

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 4,   Pages 363-367 doi: 10.15302/J-FASE-2016122

Abstract: The lack of suitable early selection parameters means that traditional rubber breeding for yield is time-consumingThe number of the secondary laticifers in the trunk bark tissues is positively correlated with rubber yieldIn the present study, the rubber yield from 280 of 4–5 year-old virgin trees from 7 cross combinationslines of secondary laticifers varied in different germplasm and was positively related to the rubber yield, indicating this could be used as a suitable parameter for early evaluation of yield potential of rubber

Keywords： Hevea brasiliensis     rubber yield breeding     early evaluation     tapping     secondary laticifer differentiation    

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PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL

Xiuwei GUO, Manoj Kumar SHUKLA, Di WU, Shichao CHEN, Donghao LI, Taisheng DU

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 525-544 doi: 10.15302/J-FASE-2020355

Abstract: Here, we investigate current maize production at the field scale, analyze the yield gaps and impactingfactors, and recommend measures for sustainably closing yield gaps.The relative yield reached 70% in both years.Yield variability under drip irrigation was 12.1%, lower than the 18.8% under border irrigation.the yield-limiting factors.

Keywords： boundary line analysis     irrigation method     precision agriculture     spatial variability     yield gaps     yield-limiting    

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Genomics approaches to unlock the high yield potential of cassava, a tropical model plant

Shengkui ZHANG,Ping’an MA,Haiyan WANG,Cheng LU,Xin CHEN,Zhiqiang XIA,Meiling ZOU,Xinchen ZHOU,Wenquan WANG

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 4,   Pages 259-266 doi: 10.15302/J-FASE-2014043

Abstract: Cassava, a tropical food, feed and biofuel crop, has great capacity for biomass accumulation and an extraordinary efficiency in water use and mineral nutrition, which makes it highly suitable as a model plant for tropical crops. However, the understanding of the metabolism and genomics of this important crop is limited. The recent breakthroughs in the genomics of cassava, including whole-genome sequencing and transcriptome analysis, as well as advances in the biology of photosynthesis, starch biosynthesis, adaptation to drought and high temperature, and resistance to virus and bacterial diseases, are reviewed here. Many of the new developments have come from comparative analyses between a wild ancestor and existing cultivars. Finally, the current challenges and future potential of cassava as a model plant are discussed.

Keywords： cassava     genomics     yield potential     adaptability     tropical model    

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iron-molybdate catalysts with various metal oxides by a mechanochemical method: enhanced formaldehyde yield

Xue Liu, Lingtao Kong, Shengtao Xu, Chaofan Liu, Fengyun Ma

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1099-1110 doi: 10.1007/s11705-020-2008-8

Abstract: and the efficient decrease in the MoO sublimation rate could be important factors enhancing the HCHO yield

Keywords： iron molybdate catalyst     metal oxides     methanol to formaldehyde     Co/Mo ratio     formaldehyde yield    

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Electrorheological damper for the ultra-precision air bearing stage

ZHU Yu, JIA Songtao, CHEN Yaying, LI Guang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 158-163 doi: 10.1007/s11465-008-0031-4

Abstract: electric fields are obtained based on the Eyring constitutive model, which smoothly transits from the pre-yieldto post-yield region.

Keywords： post-yield     linear-motor     advanced sliding     pre-yield     position    

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Title Author Date Type Operation

Several basic problems in plastic theory of geomaterials

Yuanxue LIU, Jiawu ZHOU, Zhongyou LI, Chen CHEN, Yingren ZHENG

Journal Article

Intensity Theory and Test Verification

Liu Dabin,Han Wenba,Cai Bingqing and Han Xiaodong

Journal Article

The Rion-Antirion bridge—when a dream becomes reality

Jacques COMBAULT

Journal Article

PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL

Journal Article

The effect of conservation tillage on crop yield in China

Hongwen LI,Jin HE,Huanwen GAO,Ying CHEN,Zhiqiang ZHANG

Journal Article

Breeding strategies for increasing yield potential in super hybrid rice

Shihua CHENG,Xiaodeng ZHAN,Liyong CAO

Journal Article

Highlight yield forming and innovative technologies in tropical crops

Wenquan WANG

Journal Article

YIELD AND FRUIT QUALITY OF ALMOND, PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION

Journal Article

Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages

Kailou LIU,Yazhen LI,Huiwen HU

Journal Article

Lodging resistance and yield potential of winter wheat: effect of planting density and genotype

Yonggui XIAO,Jianjun LIU,Haosheng LI,Xinyou CAO,Xianchun XIA,Zhonghu HE

Journal Article

Relationship between the number of tapping-induced secondary laticifer lines and rubber yield among

Yueyi CHEN,Xinsheng GAO,Xiaofei ZHANG,Weimin TIAN

Journal Article

PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL

Xiuwei GUO, Manoj Kumar SHUKLA, Di WU, Shichao CHEN, Donghao LI, Taisheng DU

Journal Article

Genomics approaches to unlock the high yield potential of cassava, a tropical model plant

Shengkui ZHANG,Ping’an MA,Haiyan WANG,Cheng LU,Xin CHEN,Zhiqiang XIA,Meiling ZOU,Xinchen ZHOU,Wenquan WANG

Journal Article

iron-molybdate catalysts with various metal oxides by a mechanochemical method: enhanced formaldehyde yield

Xue Liu, Lingtao Kong, Shengtao Xu, Chaofan Liu, Fengyun Ma

Journal Article

Electrorheological damper for the ultra-precision air bearing stage

ZHU Yu, JIA Songtao, CHEN Yaying, LI Guang

Journal Article