In the previous Letter (Zheng C L and Zhang J F 2002 Chin. Phys. Lett. 19 1399), a localized excitation of the generalized Ablowitz-Kaup-Newell-Segur (GAKNS) sy
A comprehensive simulation model-deposition, diffusion, rotation and aggregation-is presented to demonstrate the post-deposition phenomena of multiple cluster g
赤霉病是由禾谷镰刀菌（Fusarium graminearum Schw.）引起的一种严重的小麦穗部病害，广泛发生于世界潮湿及半潮湿地区，极大地影响了小麦的产量和品质。Fhb1广泛存在于苏麦3号、望
Bi-ferroic particulate composites with Tb0.2sDy0.72Fe2 (Terfenol-D) particles randomly dispersed in ferroelectric polyvinylidene fluoride matrix prepared by a s
The structure and magnetic properties of La(Fe1-xMnx)11.4Al1.6 (0≤ x ≤0.25) compounds have been studied. The NaZn13-type structure is preserved and the lattic
Tb-doped Zinc oxide (ZnO:Tb) films were prepared by RF reactive magnetron sputtering of a Zn target withsome Tb-chips attached. The results show that the approp
簇毛麦(Haynaldia villosa L.2n=14, VV)为一年生异花授粉草本植物,是小麦的野生近缘物种,原产于地中海沿岸和高加索地区,对白粉病、锈病、眼斑病及梭条花叶病等多种病害都具有较高抗性,同时还有密穗多花、抗寒耐旱、籽粒蛋白质含量高等优良特性。小麦和簇毛麦远缘杂交后,通过细胞遗传学操作,在后代中选育双二倍体、异附加系、异代换系和易位系,有助于更好地在小麦遗传改良中利用簇毛麦的有益
棉花是世界上最重要的天然纤维作物,同时也是重要的油料作物。棉属约有52个种,包括7个异源四倍体棉种和45个二倍体棉种,其中4个经过人类驯化成为了栽培种,分别为二倍体的草棉和亚洲棉以及四倍体的陆地棉和海岛棉。作为现在世界上种植面积最广的两个异源四倍体栽培品种,陆地棉丰产性好、适应性广,生产了全世界95%以上的原棉,但陆地棉纤维品质较差,并且人为选择也使得种内遗传基础比较狭窄。而海岛棉纤维品质优异,对
We propose that the emissions of an advection-dominated accretion flows (ADAF) disc are the seed photons upscattered to x-ray and TeV γ-rays in Mkn 501 and the
《闲情偶寄》是李渔一生艺术和生活经验的结晶,他追求功能形式兼具、朴素、雅致、创新的设计主张及审美理念对后人有着深远影响.本文从设计美学角度就“箱笼箧笥”所体现出的