新闻是新近发生的事实的报道,是客观事物的反映,是一种信息传播。新闻不涉及、不研究、不反映社会的热点问题,也就放弃和失去了自己“组织、鼓舞、激励、批判、推动”的社会
Inelastic incoherent neutron scattering spectra of D2O high-density amorphous (hda) ice, ice-Ⅷ and ice-Ⅱ mixed with small amount of H2O (＜5%) have been measure
2014年9月24—26日,备受瞩目的第七届慕尼黑上海分析生化展(Analytica China)将在上海新国际博览中心隆重召开举行,展示面积预计将达30 000 m2。本届展会共开设三大展区,其中
A scheme of M-party controlled teleportation for one N-qubit entangled W state via (N-1) Einstein-PodolskyRosen (EPR) pairs and one (M+2)-qubit Greenberger-Hoe-
Using Schrodinger-Maxwell formalism, we propose and analyse a continuous-wave four-wave mixing (FWM)scheme for the generation of coherent light in a five-state
With the method of differential optical absorption spectroscopy (DOAS), average concentrations of aerosol particles along light path were measured with a flashl
The evolution of the entanglement degree of two-mode fields and atom with the intensity-dependent coupling is investigated using von Neumann entropy. The result
据说,某地方台录制了一个电视散文节目,质量相当之高,但是送到中央电视台,却没有一个编辑部肯于接受。“百花园”主要是安排歌舞节目,从来没有什么“电视散文”;“花信风”
棉花是重要的经济作物。杂交棉可以显著提高产量和品质,但人工去雄杂交的方法费时费工,利用棉花无腺体性状可以提高制种效率,降低制种成本。本试验利用2个有酚棉作父本,10个低酚棉作母本,按不完全双列杂交设计,组配20个杂交组合,利用F1和F2,比较了杂交种及其亲本在农艺性状、产量性状、纤维品质方面的杂种优势表现,分析了亲本间的分子标记遗传距离及表型遗传距离与F1、F2杂种优势的关系。此外,还比较了亲本及
Hydrogenated amorphous silicon (a-Si:H) films with high and same order of magnitude photosensitivity (～105) but different stability were prepared by using microw