The sulfur transport is largely limited to the 2~6 km level of the atmosphere, with the maximum flux occuring in the 30 o N to 40 o N band which is consistent with the region of maximum anthropogenic emissions.
This is due to the fact that the corona plasma is optical thin to the frequencies of peak region ,which is corresponding to the valley of the absorption coefficient spectrum between the peak of N band and that of O band.
A measure system, which is made up of double slits, a transmission grating and a soft X ray streak camera, has been made for measuring an X ray image with time, space and spectra resolutions. With this system the N band X ray (the central wavelength at 1.7nm) space time resolved image of gold disk irradiated by 0.35μm laser has been obtained successfully.
And there are 32 C-bands With which the chromosomes and chromosomal arms can be identified individually·The N-banding pattern:2n=14=2CI+2CI+2CI+2CI+2CI+2CI+S+2CIS· There are rather big differences between the C-band and the N-band.
N 带带型公式为2n=2x=14=2CI+2CI+2CI+2CI+2CT+2CI+S+2CIS. C 带与 N 带有较大的差异.
The varieties with common basic N-nanding pattern (1A, 2A, 3A, 4A, 5A, 6A, 7A) accounted for 11. 96% of studied barleys, the relation-ships between N-banding pattern and geographical region were discussed.
Methods Identification and location of 21 ring chromosome were performed with the G-banding, C-banding,N-banding,high-resolution banding and fluorescence in situ hybridization(FISH) techniques.
Methods In this study the authors used G-banding, C-banding, N-banding, high-resolution banding, phenotype location analysis, and a comparative review of literature.
By the identification of Giemsa-N banding technique,it was found that 3 were dimonosomic-3B,6B,3 plants monosomic-3B,3 plants monosomic-7B,and 1 plant trisomic-3B.
This paper deals with how the sided matrix m×n is determined in the semi-r ange{s, , } making any element a_(ij) belonging to the semisphere {s, , } in correspondence with every directive side V_iV_j of the directive graph G (E,V). We set up a principle-Jar metric which finds a wide application by associating mimie matrix with direetivegraph which earries abstract dimentiOns.
The biocompatibility in vitro of Ti-15Mo-3Nb and the potassium titanate biological thin film/titanium alloy was studied using simulated body fluid cultivation, kinetic clotting of blood and osteoblast cell cultivation experiments in vitro.
Synthesis of transition metal oxides MO2 (MIV = Mo, W, or Nb) and V6O13 in alkali chloride melts and their crystallographic characteristics are described.
Seven complete chromosomes and nine telocentric chromosomes in telotrisomics of barley (Hordeum vulgare L.) were identified and designated by an improved Giemsa N-banding technique.
The present paper is dealing with the investigation of the chromosome N-banding technique and the N-banding patterns in Hordeum vulgare,Triticum aestivum,Secale cereale,Vicia faba and Allium cepa.Two N-banding techniques were applied.First, the chromosome slides were stained with Giemsa solution.Second,the slides were treated in 1M NaH_2PO_4 solution at 92-94℃ for 3.5-8.5 min.After rinsing in tap water they were stained with Giemsa solution.The experiments have demonstrated that the N-banding technique is s...
本文研究了大麦、小麦、黑麦、蚕豆、洋葱等染色体的 N 带带型鉴定技术。采用了两种 N 带技术:第一,将染色体标本在5%三氯醋酸(90℃,6分钟)-0.1NHCI(60℃,6分钟)处理,Giemsa染色;第二,染色体标本经 IM NaH_2PO_4(92—94℃,3.5—8.5分钟)处理,Giemsa 染色。试验证明 N 带技术简单、快速,带型清晰。带型分析表明,N 带并非专一地显示核仁组织者。将上述植物的 N 带与 C 带比较,在有些植物中虽然有些 N 带区与 C 带区一致,但也有些区域仅显示出 N 带而无 C 带或仅显示 C 带而无 N 带。为此,N 带技术与 C 带技术的结合使用,将对染色体鉴别十分有价值。N 带同 C 带一样也是细胞遗传学中一个有用的标记。
Karyotype of two-rowed wild barley (Hordeum spontaneum C. Koch) of Qing-Zang (Tibet) Plateau was essentially the same as that of the Middle East, and chromosome Gie-msa N-banding patterns of the former were similar to that of the latter. The results showed that H. spontaneum of Qing-Zang is closely related to that of the Middle East. Although there is slight difference between them which is only an intraspecific one. Meantime, it was found that there were a few significant interspecific differences between ...
The present paper deals with the investigation of chromosome N-banding pattern in rice. It was found that all the 12 pairs chromosomes of cultivated rice possessed prominent banding, which shows a form of point.N-bands were mainly distributed near centromere in rice. In addition, interstitial bands, near terminal bands and terminal bands were also observed. Our results obtained showed that the form and position of N-bands of rice chromosome was different from common wheat, barley, Aegilops speltoids, maize ...