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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
《农业科学与工程前沿(英文)》 2016年 第3卷 第4期 页码 363-367 doi: 10.15302/J-FASE-2016122
关键词: Hevea brasiliensis rubber yield breeding early evaluation tapping secondary laticifer differentiation
Breeding strategies for increasing yield potential in super hybrid rice
Shihua CHENG,Xiaodeng ZHAN,Liyong CAO
《农业科学与工程前沿(英文)》 2015年 第2卷 第4期 页码 277-282 doi: 10.15302/J-FASE-2015081
陈温福,徐正进,张龙步,张文忠,杨守仁
《中国工程科学》 2002年 第4卷 第1期 页码 31-35
水稻单产经历了由矮化育种和杂交稻带来的两次飞跃以后,长时间停滞不前。研究表明,以籼粳稻亚种间强优势利用与理想株型相结合为主要特征的超高产育种(即超级稻),正孕育着单产水平的第3次突破。基本理论与技术路线是增加生物产量,优化产量结构,利用籼粳稻亚远缘杂交或地理远缘杂交创造新株型和强优势,通过优化性状组配使理想株型与优势相结合。按照这一理论与技术路线,已经成功地创造出一批新株型优异种质,并育成了单产12~13 t/hm2的超级稻。
Evaluation of the compatibility between rubber and asphalt based on molecular dynamics simulation
Fucheng GUO, Jiupeng ZHANG, Jianzhong PEI, Weisi MA, Zhuang HU, Yongsheng GUAN
《结构与土木工程前沿(英文)》 2020年 第14卷 第2期 页码 435-445 doi: 10.1007/s11709-019-0603-x
关键词: rubber asphalt compatibility rubber content molecular dynamics simulation
《结构与土木工程前沿(英文)》 页码 1145-1162 doi: 10.1007/s11709-023-0945-2
关键词: seismic resilience self-centering rubber layer flag-shaped hysteresis loop parametric study
Dongliang HU, Jianzhong PEI, Rui LI, Jiupeng ZHANG, Yanshun JIA, Zepeng FAN
《结构与土木工程前沿(英文)》 2020年 第14卷 第1期 页码 109-122 doi: 10.1007/s11709-019-0579-6
关键词: crumb rubber modified asphalt surface free energy self-healing interface properties molecular dynamics simulation
曹湘洪,张爱民
《中国工程科学》 2001年 第3卷 第7期 页码 59-63
总结了燕山石化溶液聚合合成橡胶节能技术和节能型橡胶的开发情况。通过改进催化体系,提高反应速度,提高反应器的生产能力,并在聚合反应器中采用带刮刀的搅拌器,同时改进聚合、凝聚、溶剂回收的部分工艺及设备,燕山石化顺丁橡胶的能耗不断下降,达到世界先进水平。溶液聚合合成橡胶凝聚过程热泵技术的工业化,使生产每吨胶可节约1MPa的低压蒸汽0.72t。橡胶溶液直接脱挥,聚丁二烯橡胶气相聚合工艺技术开发,溶聚丁苯橡胶(SSBR)、中乙烯基聚丁二烯橡胶、苯乙烯-异戊二烯-丁二烯橡胶(SIBR)、苯乙烯-丁二烯热塑性弹性体(SBS)等新型节能型合成橡胶的技术开发也在进行中,其中SSBR、SBS技术已经工业化。
《结构与土木工程前沿(英文)》 2023年 第17卷 第4期 页码 625-636 doi: 10.1007/s11709-023-0938-1
关键词: rubber powder modified asphalt aging mechanism rheological characterization
Comments on this special issue on “Wheat Genetics and Breeding”
Zhonghu HE, Xu LLU
《农业科学与工程前沿(英文)》 2019年 第6卷 第3期 页码 309-309 doi: 10.15302/J-FASE-2019264
Highlights of special issue on “Wheat Genetics and Breeding”
Zhonghu HE, Zhendong ZHAO, Shunhe CHENG
《农业科学与工程前沿(英文)》 2019年 第6卷 第3期 页码 207-209 doi: 10.15302/J-FASE-2019263
Genomics and genetic breeding in aquatic animals: progress and prospects
Wenteng XU, Songlin CHEN
《农业科学与工程前沿(英文)》 2017年 第4卷 第3期 页码 305-318 doi: 10.15302/J-FASE-2017154
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 doi: 10.15302/J-FASE -2020355
Agriculture faces the dual challenges of food security and environmental sustainability. Here, we investigate current maize production at the field scale, analyze the yield gaps and impacting factors, and recommend measures for sustainably closing yield gaps. An experiment was conducted on a 3.9-ha maize seed production field in arid north-western China, managed with border and drip irrigation, respectively, in 2015 and 2016. The relative yield reached 70% in both years. However, drip irrigation saved 227 mm irrigation water during a drier growing season compared with traditional border irrigation, accounting for 44% of the maize evapotranspiration (ET). Yield variability under drip irrigation was 12.1%, lower than the 18.8% under border irrigation. Boundary line analysis indicates that a relative yield increase of 8% to 10% might be obtained by optimizing the yield-limiting factors. Plant density and soil available water content and available nitrogen were the three major factors involved. In conclusion, closing yield gaps with agricultural sustainability may be realized by optimizing agronomic, irrigation and fertilizer management, using water-saving irrigation methods and using site-specific management.
关键词: boundary line analysis irrigation method precision agriculture spatial variability yield gaps yield-limiting factors
Study on the gas permeabilities in styrene-butadiene rubber by molecular dynamics simulation
Hailu LIU, Xuejia DING, Jun YI, Liqun ZHANG, Sizhu WU,
《化学科学与工程前沿(英文)》 2010年 第4卷 第3期 页码 257-262 doi: 10.1007/s11705-009-0270-x
关键词: diffusion atomistic simulation permeability chemical structure relationship
武冠英
《中国工程科学》 1999年 第1卷 第3期 页码 79-85
文章从合成橡胶的化学基础出发,叙述了合成橡胶工业二十世纪以来的过去、现状,并展望未来。着重讨论了合成化学基础及相应聚合工艺过程的进步这两方面的问题。指出合成橡胶化学基础中活性聚合、可控聚合,包括茂金属催化剂仍为近期的重点;气相聚合工艺将会得到较大的发展;高效聚合釜的研究仍是核心问题;环保问题应更受到重视。
The secondary laticifer differentiation in rubber tree is induced by trichostatin A, an inhibitor of
Shixin ZHANG,Shaohua WU,Weimin TIAN
《农业科学与工程前沿(英文)》 2016年 第3卷 第4期 页码 357-362 doi: 10.15302/J-FASE-2016125
关键词: Hevea brasiliensis histone acetylation laticifer differentiation trichostatin vascular cambia
标题 作者 时间 类型 操作
Relationship between the number of tapping-induced secondary laticifer lines and rubber yield among
Yueyi CHEN,Xinsheng GAO,Xiaofei ZHANG,Weimin TIAN
期刊论文
Breeding strategies for increasing yield potential in super hybrid rice
Shihua CHENG,Xiaodeng ZHAN,Liyong CAO
期刊论文
Evaluation of the compatibility between rubber and asphalt based on molecular dynamics simulation
Fucheng GUO, Jiupeng ZHANG, Jianzhong PEI, Weisi MA, Zhuang HU, Yongsheng GUAN
期刊论文
Parametric study on seismic performance of self-centering reinforced concrete column with bottom-placed rubber
期刊论文
Using thermodynamic parameters to study self-healing and interface properties of crumb rubber modified
Dongliang HU, Jianzhong PEI, Rui LI, Jiupeng ZHANG, Yanshun JIA, Zepeng FAN
期刊论文
Aging properties and aging mechanism of activated waste rubber powder modified asphalt binder based on
期刊论文
Highlights of special issue on “Wheat Genetics and Breeding”
Zhonghu HE, Zhendong ZHAO, Shunhe CHENG
期刊论文
Genomics and genetic breeding in aquatic animals: progress and prospects
Wenteng XU, Songlin CHEN
期刊论文
PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL
期刊论文
Study on the gas permeabilities in styrene-butadiene rubber by molecular dynamics simulation
Hailu LIU, Xuejia DING, Jun YI, Liqun ZHANG, Sizhu WU,
期刊论文