中国西北部繁缕属一新种

贺兰山繁缕新种图1 Stellaria alaschanica Y.Z.Zhao sp.nov. Species S. longifoliae Muehl. afflnis, sed plantis pumilis, 5—15 cm altis; caulibus tenellis, flexilibus, densis, caespitosis; caulibus et marginibus foliorum pilosis retrorsum; petalis sepalis tertia parte brevioribus. Herba perennis, 5—15 cm alta. Caules tenelli, flexiles, ramosissimi, dense caespitosi,     

老鸦瓣属药用植物地理新分布

报道了百合科老鸦瓣属药用植物安徽老鸦瓣Amana anhuiensis(X.S.Shen.)D. Y. Tan et D. Y. Hong、宝华老鸦瓣A.baohuaensis B.X.Han, Long Wang et G.Y. Lu、皖浙老鸦瓣A.wanzhensis L. Q. Huang, B. X. Han et K. Zhang的地理新分布。     

Multipliers on weighted Hardy spaces over locally compact Vilenkin groups

A weighted Hpω(G) multiplier theorem on the multiplier operator T associated with a function m∈ L∞ (Γ) is shown and the atomic decomposition of functions fin Hp*(G) is obtained, where G is a Vilenkin group, r its dual, 0 < p≤1 and ω is a weight on G which is more general than that proposed by C. W. Onneweer et al.     

Physiological response of natural C.taklimakanensis B.R.Pan et G.M.Shen to unconfined groundwater in the hinterland of the Taklimakan Desert

Calligonum. taklimakanensis B.R.Pan et G.M.Shen is an indigenous species that grows in the Taklimakan Desert. This study shows the relationship between C.taklimakanensis B.R.Pan et G.M.Shen and water conditions in the hinterland of the desert. The results show that: (1) Depth of water table is an important factor that affects water potential (ψp, ψA), osmotic potential (ψsat, ψtlp), relative water content (RWCtlp, ROWCtlp), and transpiration rate. (2) The degree of mineralization has a significant impact on the water potential of plants. A high degree of mineralization can strongly reduce plant productivity. (3) C. taklimakanensis B.R.Pan et G.M.Shen reduces the temperature of assimilation sticks through a high transpiration rate and maintains relatively high water content to adapt to drought and hot weather conditions in the hinterland of the desert. In addition, C. taklimakanensis B.R.Pan et G.M.Shen adapts to the water status in the desert through self-regulation or even sacrificing productivity.     

Wavelet packet based feature extraction and recognition of license plate characters

~~Wavelet packet based feature extraction and recognition of license plate characters1. Poon, J. C. H, Ghadia, M., Mao, G. M. T. et al., A robust vision system for vehicle license plate recognition using gray-scale morphology, in Proc. of the IEEE Interna…     

浙江槭树属植物新资料

对浙江槭树属Acer L.植物的11个分类群进行了修订:将羊角槭A.yangjuechi Fang et P.L.Chiu组合为庙台槭的亚种A.miaotaiense P.C.Tsoong subsp.yangjuechi(Fang et P.L.Chiu)P.L.Chiu et Z.H.Chen;提出了苦茶槭的合法名...     

福建竹类二新种

<正> 福建酸竹 别名:甜竹 新种 图1Acidosasa fujianensis C. S. Chao et H. Y. Zou sp. nov.Species A. chinensi C. D. Chu et C. S. Chao affinis sed culmorum vaginarumauriculis et setis oralibus evolutis, pedicellis brevioribus, 2-13mm. longis, glumis 2,rhachillis puberulis, lemmatibus paleisque albo-pubescentibus differt.     

国产竹亚科的若干新分类群

本文描述了主要系野生或栽培于浙江省的竹亚科植物3新种及4新变型。这些新分类群是:天目旱竹Phyllostachys tianmuensis Z.P.Wang et N.X.Ma、长沙刚竹Ph.verrucosa G.H.Ye et Z.P.Wang、百山祖玉山竹Yunshania baishanzuensis Z.P.Wang et G.H.Ye、强竹Phyllostachys heterccycla (Carr.) Mitf.var. pubescens (Mazel) Owhi f. obliquinoda Z. P.Wang et N.X.Ma、佛肚毛竹Ph.heterocycla(Carr.)Mitf.var.pubescens(Mazel)Ohwi f.ventricosa Z.P.Wang et N.X.Ma、黄槽斑竹Ph.bambusoides Sieb.et Zucc.f.mixta Z.P.Wang et N.X.Ma、黄竿京竹Ph.aureosulcata McClire f.aureocaulis Z.P.Wang et N.X.Ma。此外,又简要地讨论了龟甲竹Ph.heterocycla(Carr.)Mitf.的拉丁名。     

高斯算数-几何平均AGM不等式链的细化

本文先介绍了几个比较典型的平均值,而后给出如下2个结论:1.L<1/3H+2/3A.2.P(A,G)<1/3H(A,G)+2/3A(A,G)A+AG+G/3.从而使得平均值的不等式链得到细化.     

内蒙古花葱属的分类学研究

作者对内蒙占境内花葱属(Polemonium L.)进行了分类学研究。1980年出版的《内蒙古植物志》第五卷收载了花葱属植物1种,经作者整理与研究后,现知内蒙古有本属植物4种、1变种。其中1新种:——Polemonium sumushanense G.H.Liu et Ma;1新变种:——P.chinense(Brand)Brand var.hirticaulum G.H.Liu et Ma。作者编写了分种检索表,并对分类学上有争议的种进行了讨论。