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14篇 您的检索式:作者名="Steven AO"
    题名 作者 年代 出处 被引量
1Effect of Preplant Fertilizer on Agronomic and Physiological Traits of Soybean Cultivars from Different Breeding Programs显示文摘Understanding the changes in agronomic and physiological traits associated with yield genetic gain is important for soybean production and future breeding strategy. The objective of this study was to compare the older and modern cultivars to learn whether the yield improvements depend on preplant fertilizer or the plant productivity improvement. A set of older cultivars, with their modern counterparts derived from breeding programs in Liaoning and Ohio were evaluated for their agronomic and physiological traits under different fertilizer levels from 2004 to 2006. There was no improvement of response to N and P preplant fertilizer for genotypes. After more than 70 yr breeding, soybean breeders made some improvements in agronomic and physiological traits that contribute to yield increase. When compared to older cultivar, modern Liaoning and Ohio cultivars were shorter and more resistance to lodging, had greater leaf density, higher harvest index, more leaf area per plant, and greater photosynthetic rate, transpiration rate and stomatal conductance at the beginning of seed development. Ohio cultivars were more resistant to lodging as if selected for easy harvest by combine, even under high N and P preplant fertilizer level, which resulted in Ohio cultivars with higher and stable yield productivity.XIE Fu-ti ZHANG Hui-jun WANG Hai-ying AO Xue St. Martin Steven K 2010Agricultural Sciences in China2010,9,11:3
2Assessment of pelvic ring stability after iniury显示文摘Steven AO Andrew NP 1996Clin Orthop1996,329,:1
3Tailoring interlayer spacing in MXene cathodes to boost the desalination performance of hybrid capacitive deionization systems显示文摘Capacitive deionization(CDI)is a promising technology to satisfy the global need for fresh water,since it can be both economical and sustainable.While two-dimensional transition metal carbides/nitrides(MXenes)exhibit great characteristics for use as CDI electrode materials,their tightly spaced layered structure renders intercalation inefficiency.In this study,the interlayer distance of MXenes is precisely modulated by inserting different quantity of one-dimensional bacterial fibers(BC),forming freestanding MXene/BC composite electrodes.Among the studied samples,MXene/BC-33%electrode with the interlayer spacing of 15.2Åcan achieve an optimized tradeoff among various desalination performance metrics and indicators.The salt adsorption capacity(SAC),the average salt adsorption rate(ASAR),the energy normalized adsorbed salt(ENAS),and the thermodynamic energy efficiency(TEE)of the MXene/BC-33%electrode are improved by 24%,46%,13%,and 66%respectively compared with those of pure MXene electrode.While the insertion of BC improves the ion diffusion pathways and facilitates the intercalation kinetics,the desalination performance decreases when the insertion amount of BC exceeds 40%.This is attributed to the overlarge resistance of the composite and the resulting increased energy consumption.This study reveals the desalination performance tradeoffs of MXene-based electrodes with different interlayer distances and also sheds light on the fundamental ion storage mechanisms of intercalation materials in a CDI desalination system.Bei Li Kang Sun Wenyu Xu Xiaojing Liu Ao Wang Steven Boles Bin Xu Haibo Hu Dongrui Yao 2023Nano Research2023,16,5:1
4Fatal fibronectin and bacterial vaginosis are associated with preterm birth in women who are symptomatic for preterm labor显示文摘Stevens AO Chauhan SP Magann EF 2004Am J Obstet Gynecol2004,27,4:1
5Assesssment of pelvic ring stability after injury显示文摘Steven AO Andrew NP 1996Clin Orthop1996,329,:1
6Assessment of pelvic ring stability after injury显示文摘Steven AO Andrew NP 1996Clin Orthop1996,329,:1
7Fetal fibronectin and bacterial vaginosis are associated with preterm birth in women who are symptomatic for preterm labor 显示文摘Stevens AO Chauhan SP Magann EF 2004Am J Obstet Gynecol2004,190,6:1
8Assessent of pelvic ring stability after injury显示文摘Steven AO Andrew NP 1996Clin Orthop1996,329,1:1
9Assessment of pelvic ring stability after in-jury显示文摘Steven AO Andrew NP 1996Clin Orthop Relat Res1996,329,1:1
10Biomechanices of the hip joint and effects of fracture of the acetabulum 显示文摘Steven AO Brain KB Andrew H 1997Clin Orthop1997,339,:1
11Assessment of pelvic ring stability after injury显示文摘Steven AO Andrew NP 1996Clin Orthop1996,,:1
12Nontraumatic at-lanto-occipital and atlantoaxial rotatory subluxation:case report显示文摘Ransford AO Crockard HA Stevens JM 0,,02:1
13Assessment of pelvic ring stability after injury显示文摘Steven AO Andrew NP 1996Clin Orthop1996,329,:1
14Assessment of pelvic ring stabilty afterinjury 显示文摘Steven AO Andrew NP 1996Clin Orthop1996,329,1:1
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