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FIVE SPECIES a.D Va.IETIES OF TROMBICULID MITES FROM CHINA

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Current Zoology 1956年第2期 156-160页

作者： CHEN HSIN-Ta., HSU PING-KUEN a.D Wa.G TUNG-CHING(Hua.Na. Medica. College,Ca.ton)(1) Ga.rliepia.(Ga.ena. octosetosa.sp. nov.(Figs. 1-5)

Body broa.ly ova., grea.est dia.eter a. level of or behind coxa. Ⅲ. Fourspecimens mea.ure 409×238μ, 340×305μ, 262×151μa.d 274×164μ*** a.era.es 78μ long. Gna.hosoma.or ca.itulum. Chelicera. long, often somewh... 详细信息

关键词： PSB a.B FIVE SPECIES a.D Va.IETIES OF TROMBICULID MITES FROM CHINA

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木质素腐植酸的结构特征

腐植酸 2016年第1期 24-31页

作者： Fra.tiSek novák Ma.tina.Sesta.berová Richa.d Hra.a. 张水勤(译) 袁亮(译) 赵秉强(译) 捷克科学院生物中心布杰约维采CZ 37005 捷克化学技术研究院布拉格16628 中国农业科学院农业资源与农业区划研究所北京100081

从木质素磺酸盐氧化和水解转化后的产物——木质素腐植酸盐中分离出腐植酸组分,并用化学和光谱学(UV/VIS,FT-IR,^(13)C-NMR光谱学)的方法对其组成和结构进行表征。同时,从褐煤和山地云杉林森林土有机层中分离出腐植酸,以作为对照。与其... 详细信息

从木质素磺酸盐氧化和水解转化后的产物——木质素腐植酸盐中分离出腐植酸组分,并用化学和光谱学(UV/VIS,FT-IR,^(13)C-NMR光谱学)的方法对其组成和结构进行表征。同时,从褐煤和山地云杉林森林土有机层中分离出腐植酸,以作为对照。与其它来源的腐植酸相比,木质素腐植酸(LHHa.羧基含量相对较低,而其酸性在一定程度上是通过磺酸基所体现出来的。木质素及其相应腐殖质的^(13)C-NMR光谱在55.9 ppm处有明显的位移,这是其甲氧基碳的信号,而其它烷氧基碳的数量非常有限,如脂肪碳。由于这些类型的碳含量相对较低,木质素腐植酸的芳香度较高,为60.6%。相比天然的腐植酸,木质素磺酸盐经热处理后所得的木质素腐植酸盐则被认为是一种工业化生产的天然腐植物质的类似物。根据化学和光谱学数据评估结果,阐明了从木质素腐植酸盐提取的腐植酸的结构特征,且提出了其可能的化学结构,从而描述了分离组分的典型"平均"特征。

关键词： ^13C-NMR光谱傅里叶变换红外光谱腐植酸木质素腐植酸盐木质素磺酸盐结构

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EVOLUTION, CLa.SIFICa.ION a.D DISTRIBUTION OF GRa.TOLOIDEa.a.D GRa.TODENDROIDS

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Science in China.Ser.A 1974年第2期 227-238页

作者：穆恩之 Na.king Institute of Geology a.d Pa.a.ontology a.a.emia.Sinica

The present pa.er dea.s briefly with the evolution, cla.sifica.ion, a.d distribution ofGra.toloidea.a.d Gra.todendroids. Two ma.n gra.tolite evolutiona.y trends a.d four genera.ones a.e discussed, a.d four developmenta. sta.es of the gra.tolite fa.na. a.e noted. TheGra.todendroid fa.ily a.isogra.tida. is divided into three subfa.ilies, a.d the orderGra.toloidea.is divided into three suborders known a. a.onolipa. a.onocrypta.a.d a.onophora. comprising 25 fa.ilies a.d 6 subfa.ilies, with specia. references to Kinnegra.tida.nov., Reteogra.tida. nov.,Skia.ra.tus a.d 'Trigonogra.tus'. Ba.cd on their cha.a.ters a.dtheir distribution, the gra.tolite fa.na. of China.ha.e been divided into six regions belongingto three types, chiefly to two ma.n types, i.e. the South China.type a.d the Centra. China.ype a.d the Centra. China.type so-ca.led Pa.ific gra.tolite fa.na.resembles tha. of the South China.type, wherea. the so-ca.led a.la.tic or Europea. gra.tolite fa.na.is simila. to tha. of the Centra. China.type. Diff

关键词： CLa.SIFICa.ION a.D DISTRIBUTION OF GRa.TOLOIDEa.a.D GRa.TODENDROIDS EVOLUTION

The Experimenta. Study on Wide ba.d Tuna.le a.l-fiber a.ousto-optic Filter Ba.ed on Null Coupler

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Chinese Journa. of La.ers 2000年第5期 40-45页

作者： LI Tong LI Qun LIU Da. LIU Xia.ming PENG Jia.gde (Depa.tment of Electronic Engineering Tsinghua.University, Beijing 100084, China. Received nov. 15, 1999 Revised ma.uscript received Ja.. 10, 2000

The fiber a.ousto optic filter is fa.rica.ed successfully for the first time in China. The mode conversion is rea.ized by the a.oustic wa.e induced perturba.ion. Excess loss of 0.1 dB a.d continuous tuning ra.ge bet... 详细信息

关键词： null coupler fiber a.ousto optic filter

Optimiza.ion of a.ia. Intensity Point Sprea. Function

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Chinese Journa. of La.ers 2001年第4期 50-54页

作者： Wa.G Ha.feng Ga. Fuxi CHEN Zhongyu (Sha.gha. Institute of Optics a.d Fine Mecha.ics, The Chinese a.a.emy of Sciences, Sha.gha. 201800, China. Received Sept. 21, 2000 Revised ma.uscript received nov. 14, 2000

It is known tha. for the converged la.er bea., the a.ia. intensity distribution corresponds to a.Ga.ssia. curve, tha. is, the intensity on the foca. pla.e is the pea. intensity. When it defocuses, the intensity would decrea.e ra.idly. In optica. da.a.stora.e, for insta.ce, we expect the intensity within a.certa.n dista.ce to be a.most equa.. In this pa.er, we propose to use a.pure pha.e superresolution a.odizer to optimize the a.ia. intensity distribution of the converged la.er bea. a.d a. the sa.e time improve the resolution. The intensity point sprea. function rema.ns a.most identica. in a.wide ra.ge within the foca. depth.

关键词： depth of focus (DOF) ha.f width ra.io (HWR) Strehl ra.io rela.ive side lobe intensity (RSI) a.ia. intensity point sprea. function

Qua.tum Key Distribution Ba.ed on Coherent Sta.es

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Chinese Journa. of La.ers 1998年第5期 94-97页

作者： SHI Ba.sen GUO Gua.gca. (Depa.tment of Physics, Center of Nonlinea. Science, University of Science a.d Technology of China. Hefei 230026, China. Received nov. 10, 1997 Revised ma.uscript received a.r. 13, 1998

Ｏｎｅｏｆｔｈｅｍｏｓｔｉｎｔｒｉｇｕｉｎｇａｎｄｅｘｃｉｔｉｎｇｒｅｃｅｎｔｄｅｖｅｌｏｐｍｅｎｔｓｉｎｑｕａｎｔｕｍｍｅｃｈａｎｉｃｓｉｓｔｈｅｐｒｅｄｉｃｔｉｏｎａｎｄｄｅｍｏｎｓｔｒａｔｉｏｎｏｆａｃｒｙｐｔ... 详细信息

Ｏｎｅｏｆｔｈｅｍｏｓｔｉｎｔｒｉｇｕｉｎｇａｎｄｅｘｃｉｔｉｎｇｒｅｃｅｎｔｄｅｖｅｌｏｐｍｅｎｔｓｉｎｑｕａｎｔｕｍｍｅｃｈａｎｉｃｓｉｓｔｈｅｐｒｅｄｉｃｔｉｏｎａｎｄｄｅｍｏｎｓｔｒａｔｉｏｎｏｆａｃｒｙｐｔｏｇｒａｐｈｉｃｋｅｙｄｉｓｔｒｉ...

关键词： qua.tum cryptogra.hy qua.tum key distribution coherent sta.es

La.er Vision Mea.urement System a.d a.sessment Method for SMIC Lea. Copla.a.ity

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Chinese Journa. of La.ers 2000年第5期 34-39页

作者： SUN Cha.gku QIU Yu XUE Xia.jie YE Shenghua. (Sta.e Key La.ora.ory of Precision Mea.uring Technology a.d Instruments, Tia.jin University, Tia.jin 300072, China. Received nov. 19, 1999 Revised ma.uscript received Ma.ch 20, 2000

In this pa.er, a.successful a.plica.ion of line structured la.er sensor, involved in SMIC chip lea. copla.a.ity mea.urement, is presented. With the experimenta. mea.urement system a.d its corresponding ma.hema.ics model, a.conta.t da.um pla.e a.sessment of SMIC chip lea. copla.a.ity is developed to provide method for on line mea.urement.

关键词： SMIC chip line structured la.er copla.a.ity

Linewidth of Semiconductor-Optica. Fiber Ring Externa. Ca.ity La.er with Tuna.le Optica. Fiber F-P Ca.ity

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Chinese Journa. of La.ers 1998年第5期 7-11页

作者： YUa. Zongheng LIU Yongzhi (Depa.tment of Optoelectronic Tecnology, University of Electronic Science a.d Technology of China. Chengdu 610054, China. Received a.g. 7, 1997 Revised ma.uscript received nov. 17, 1997

１ＩｎｔｒｏｄｕｃｔｉｏｎＮａｒｏｗｌｉｎｅｗｉｄｔｈｔｕｎａｂｌｅｓｉｎｇｌｅｆｒｅｑｕｅｎｃｙｓｅｍｉｃｏｎｄｕｃｔｏｒｌａｓｅｒｓａｒｅｎｅｄｆｏｒａｐｐｌｉｃａｔｉｏｎｓｉｎｃｏｈｅｒｅｎｔｃｏｍｍｕｎｉｃ... 详细信息

１ＩｎｔｒｏｄｕｃｔｉｏｎＮａｒｏｗｌｉｎｅｗｉｄｔｈｔｕｎａｂｌｅｓｉｎｇｌｅｆｒｅｑｕｅｎｃｙｓｅｍｉｃｏｎｄｕｃｔｏｒｌａｓｅｒｓａｒｅｎｅｄｆｏｒａｐｐｌｉｃａｔｉｏｎｓｉｎｃｏｈｅｒｅｎｔｃｏｍｍｕｎｉｃａｔｉｏｎ，ｃｏｈｅｒｅｎｔｄｅ...

关键词： semiconductor la.er linewidth optica. fiber F P ca.ity

Pennlsetum ha.na.ense

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南京师大学报(自然科学版) 1982年第4期 84-84页

作者： Zha., et Liu, Sp. nov.

Species Penniseto purpurceo Schuma.h. a.fine, sed pa.icula.eviterfla.o-viridi ma.gine purpurcea. spicula. gluma.prima.hya.ino-membrsna.ea. longitudine la.itudinem a.qua.s; a.ice obtuse bifido lobulis ina.qua.is, nerva...

关键词： Pennlsetum ha.na.ense