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Rangeland Productivity in China

Hou Fujiang,Wang Chunmei,Lou Shanning,Hou Xiangyang and Hu Tianming

Strategic Study of CAE 2016, Volume 18, Issue 1,   Pages 80-93 doi: 10.15302/J-SSCAE-2016.01.011

Abstract: The grazing capacity of the grassland of low income countries was 87.4% higher than that of high incomeWith appropriate grazing utilization, the productivity of grassland in China can reach 6.35×109The meat production from animal grazing grassland can reach 2.959×106 t, accounting for 3.5% of

Keywords： grassland productivity     grass production     grazing     grazing capacity     animal product unit (APU)    

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Error analysis of the parameters for non-coaxial grazing X-ray microscope

ZHAO Lingling, HU Jiasheng, LI Xiang

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 323-329 doi: 10.1007/s11465-007-0057-z

Abstract: A non-coaxial grazing X-ray microscope, consisting of four spherical mirrors, is designed for diagnosisdue to component and subsystem parameters (such as the radius of the mirror, angle between mirrors, grazingA set of non-coaxial grazing X-ray microscopes is manufactured based on the tolerances.

Keywords： non-coaxial     spherical     manufacturing     necessary     diagnosis    

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The ecological adaptability of cloned sheep to free-grazing in the Tengger Desert of Inner Mongolia,

Xinxin LI,Huijuan WANG,Guanghua SU,Zhuying WEI,Chunling BAI,Wuni-MENGHE,Yanhui HOU,Changqing YU,Shorgan BOU,Guangpeng LI

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 3,   Pages 191-200 doi: 10.15302/J-FASE-2014029

Abstract: The main findings of this research were as follows. (1) Under free-grazing conditions, the cloned sheepsheep quickly adapted from a herd feeding strategy to the harsh environment and quickly exhibited a grazingregimen as other free-grazing sheep. (3) The cloned sheep exhibited free-grazing patterns and socialThe Dorper sheep readily adapted to the free-grazing conditions on the Mongolian plateau grassland, which

Keywords： somatic cell nuclear transfer     free-grazing synchronization     Dorper sheep     cloned animal ecology    

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Integrating space and time: a case for phenological context in grazing studies and management

Dawn M. BROWNING, Sheri SPIEGAL, Richard E. ESTELL, Andres F. CIBILS, Raul H. PEINETTI

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 44-56 doi: 10.15302/J-FASE-2017193

Abstract: Livestock grazing is a common agricultural practice worldwide and a concern is localized overuse of specificOur findings suggest that phenological context can expand the capacity to compare and integrate findings, and facilitate meta-analyses of grazing studies conducted at different locations and times of year.

Keywords： GPS collars     Jornada Experimental Range     land-surface phenology     livestock movement     LTAR     MODIS NDVI     rangeland    

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NEW ZEALAND DAIRY FARM SYSTEMS AND KEY ENVIRONMENTAL EFFECTS

Jiafa LUO, Stewart LEDGARD

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1,   Pages 148-158 doi: 10.15302/J-FASE-2020372

Abstract: This paper provides an overview of the range of dairy pasture grazing systems used in New Zealand (NZNZ dairy farming systems are based on year-round grazing and seasonal milk production on perennial ryegrassOff-paddock facilities (such as standoff or feed pads) are often used to restrict grazing during very

Keywords： dairy farms     environmental impacts     grazing systems     intensification     mitigation    

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Methane Emissions from Grazing Holstein-Friesian Heifers at Different Ages Estimated Using the Sulfur

Steven J. Morrison, Judith McBride, Alan W. Gordon, Alastair R. G. Wylie, Tianhai Yan

Engineering 2017, Volume 3, Issue 5,   Pages 753-759 doi: 10.1016/J.ENG.2017.03.018

Abstract: cattle has been extensively examined, less data is available regarding CH4 emissions from grazingthe physiological state of Holstein-Friesian heifers on their enteric CH4 emissions while grazingThese results provide an alternative approach for estimating CH4 emissions from grazing dairy

Keywords： Methane emission     Grazing dairy heifer     Prediction     Sulfur hexafluoride tracer technique    

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Efficient acetylene/carbon dioxide separation with excellent dynamic capacity and low regeneration energy

Frontiers of Chemical Science and Engineering   Pages 1616-1622 doi: 10.1007/s11705-022-2183-x

Abstract: Here, remarkable acetylene/carbon dioxide separation featuring a high dynamic breakthrough capacity foracetylene clusters through hydrogen bonds and intermolecular interactions, which afforded a high acetylene capacity

Keywords： adsorption     acetylene/carbon dioxide separation     dynamic capacity     anion-pillared hybrid material    

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Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 50-54 doi: 10.1007/s11709-013-0186-x

Abstract: To investigate the impact-absorbing capacity of granular matter, the discrete element method (DEM) is

Keywords： granular matter     impact peak     buffer capacity     discrete element method     critical thickness    

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Dynamic simulation of urban water metabolism under water environmental carrying capacity restrictions

Weihua ZENG,Bo WU,Ying CHAI

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 114-128 doi: 10.1007/s11783-014-0669-6

Abstract: Feedback loops can be analyzed to increase the water environmental carrying capacity (WECC) of the new

Keywords： urban water metabolism system (UWMS)     system dynamic simulation     water environmental carrying capacity    

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Grassland ecology in China: perspectives and challenges

Deli WANG, Ling WANG, Jushan LIU, Hui ZHU, Zhiwei ZHONG

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 24-43 doi: 10.15302/J-FASE-2018205

Abstract: , and biodiversity and community stability. (2) Research on managed grassland ecosystems (grassland grazingecology) including grazing effects on grassland ecosystem function and foraging behavior by large herbivoresecosystem biodiversity, the ecological stoichiometry mechanisms affecting grassland community stability, grazingfor the grassland ecology research, including understanding of grassland spatial processes, grassland grazing

Keywords： biodiversity     climate change     China     grazing     meadow     restoration     steppe    

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Polypropylene microplastics alter the cadmium adsorption capacity on different soil solid fractions

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 3-3 doi: 10.1007/s11783-021-1437-z

Abstract:

Microplastics (MPs) are widely present in a variety of environmental media and have attracted more and more attention worldwide. However, the effect of MPs on the interaction between heavy metals and soil, especially in soil solid fraction level, is not well understood. In this study, batch experiments were performed to investigate the adsorption characteristics of Cd in bulk soil and three soil solid fractions (i.e. particulate organo matter (POM), organic-mineral compounds (OMC), and mineral) with or without polypropylene (PP) MPs.

Keywords： Polypropylene microplastics     Cadmium     Adsorption     POM     OMC     Mineral    

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Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Frontiers of Structural and Civil Engineering   Pages 901-914 doi: 10.1007/s11709-023-0915-8

Abstract: The integrity and bearing capacity of segment joints in shield tunnels are associated closely with theparametric investigation is conducted to discuss the factors affecting the ultimate compressive bending capacity

Keywords： shield tunnel     segment joint     joint structural model     failure mechanism    

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A method to calculate working capacity space of multi-DOF manipulator and the application in excavating

Baochen WEI, Feng GAO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 109-119 doi: 10.1007/s11465-012-0323-6

Abstract:

Working capacity refers to the velocity output and force output of a manipulator.It is usually be represented by output capacity space.The results show that the effect of the gravity is a translation of the capacity space.This paper gives a method for the output capacity express especially for heavy duty manipulators.The output capacity space can be helpful to the driving parameters selection.

Keywords： working capacity     multi-DOF manipulator     capacity polytope     excavating mechanism    

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Foundations bearing capacity subjected to seepage by the kinematic approach of the limit analysis

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 446-455 doi: 10.1007/s11709-013-0227-5

Abstract: kinematic approach of the limit analysis was employed to find the upper-bound limit of the bearing capacityIt was found that the bearing capacity has a decreasing trend with increase in the groundwater flow gradientand hence, a reduction factor has been introduced to the third term in the bearing capacity equation

Keywords： foundation     bearing capacity     limit analysis     numerical computation     plasticity     seepage    

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Analysis on shear capacity of prestressed concrete spatial connections

XUE Weichen, LIU Zhenyong, JIANG Dongsheng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 309-317 doi: 10.1007/s11709-008-0052-4

Abstract: concrete spatial connections, nonlinear finite element models were established to analyze the shear capacityIt is found that the shear capacity of spatial connection is influenced by joint hoop, beam prestressThe parametric studies also indicate that the shear capacity of spatial connection under biaxial cyclicA design formula for calculating the shear capacity of spatial connections is proposed based on the parametric

Keywords： available     direction     nonlinear     capacity     compressive    

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Title Author Date Type Operation

Rangeland Productivity in China

Hou Fujiang,Wang Chunmei,Lou Shanning,Hou Xiangyang and Hu Tianming

Journal Article

Error analysis of the parameters for non-coaxial grazing X-ray microscope

ZHAO Lingling, HU Jiasheng, LI Xiang

Journal Article

The ecological adaptability of cloned sheep to free-grazing in the Tengger Desert of Inner Mongolia,

Xinxin LI,Huijuan WANG,Guanghua SU,Zhuying WEI,Chunling BAI,Wuni-MENGHE,Yanhui HOU,Changqing YU,Shorgan BOU,Guangpeng LI

Journal Article

Integrating space and time: a case for phenological context in grazing studies and management

Dawn M. BROWNING, Sheri SPIEGAL, Richard E. ESTELL, Andres F. CIBILS, Raul H. PEINETTI

Journal Article

NEW ZEALAND DAIRY FARM SYSTEMS AND KEY ENVIRONMENTAL EFFECTS

Jiafa LUO, Stewart LEDGARD

Journal Article

Methane Emissions from Grazing Holstein-Friesian Heifers at Different Ages Estimated Using the Sulfur

Steven J. Morrison, Judith McBride, Alan W. Gordon, Alastair R. G. Wylie, Tianhai Yan

Journal Article

Efficient acetylene/carbon dioxide separation with excellent dynamic capacity and low regeneration energy

Journal Article

Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Journal Article

Dynamic simulation of urban water metabolism under water environmental carrying capacity restrictions

Weihua ZENG,Bo WU,Ying CHAI

Journal Article

Grassland ecology in China: perspectives and challenges

Deli WANG, Ling WANG, Jushan LIU, Hui ZHU, Zhiwei ZHONG

Journal Article

Polypropylene microplastics alter the cadmium adsorption capacity on different soil solid fractions

Journal Article

Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Journal Article

A method to calculate working capacity space of multi-DOF manipulator and the application in excavating

Baochen WEI, Feng GAO

Journal Article

Foundations bearing capacity subjected to seepage by the kinematic approach of the limit analysis

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Journal Article

Analysis on shear capacity of prestressed concrete spatial connections

XUE Weichen, LIU Zhenyong, JIANG Dongsheng

Journal Article