芳香

The introduction of methoxyphenyl or fluorenyl endows significantly enhanced electron-accepting capability,and the LUMO energy level decreases from-3.50 eV of 1a to-...

同时，大尺寸芳香取代基的引入有效抑制了由于分子聚集而引起的荧光淬灭，使三亚吡嗪化合物的荧光量子效率从化合物1a的0.23提高到化合物1b的0.81和化合物1c的0.87。

Hexaazatriphenylene derivatives were designed and synthesized by introducing methoxyphenyl or fluorenyl peripheral aryl substituents,and the effect of these aromatic substituents on their optical properties and bandgap were characterized by means of UV-Vis absorption spectroscopy,fluorescence spectroscopy and electrochemical cyclic voltammogram.

结果发现，芴和甲氧基苯芳香基团的引入使三亚吡嗪化合物的接收电子能力显著提高，LUMO能级从化合物1a的-3.50 eV降低到化合物1b的-3.68 eV和化合物1c的-3.66 eV，并伴随着吸收光谱和荧光光谱的显著红移，最大吸收和发射峰从化合物1a的413和432 nm红移到化合物1b的460和543 nm以及化合物1c的479和552 nm。

The factory releases some waste liquid including fluorhydric acid, Not only the products cost is increased, but also the environment is polluted, for this reason, some ways that fluorine hydride is recycled from the acid waste liquid are introduced in this paper.

针对辽宁省阜新市是含氟芳香族化合物的重要生产基地，工厂排放的废液中含有氟化氢，过去增加了产品的生产成本，也污染了环境。

RESULTS: All aromatic anesthetics inhibited I at a holding potential which produce half-maximal current V(1/2; inhibition was modest with 1,3,5-trifluorobenzene (8%+/- 2%), pentafluorobenzene (13%+/- 2%), and hexafluorobenzene (13%+/- 2%), but greater with benzene (37%+/- 2%), fluorobenzene (39%+/- 2%), 1,2-difluorobenzene (48%+/- 2%), 1,4-difluorobenzene (31 +/- 3%), and 1,2,4-trifluorobenzene (33%+/- 1%).

结果：在最高电流的一半的控制电压下所有芳香族麻醉药都阻断钠电流；均苯三酚（8%+/- 2%）、戊苯(13%+/- 2%)、戌苯(13%+/- 2%)的抑制是适度的比苯(37%+/- 2%)、氟苯(39%+/- 2%)，1.2-二氟二苯(48%+/- 2%)，1，4-二氟二苯(31 +/- 3%)，和1，2，4三氟苯(33%+/- 1%)明显。

To test this hypothesis, we measured the effect of IV infusion of the NMDA blockers dizocilpine (MK-801) and-4-(3-phosphonopropyl) piperazine-2-carboxylic acid to decrease the MAC (the minimum alveolar concentration of anesthetic that prevents movement in 50% of subjects given a noxious stimulation) of 8 conventional anesthetics (cyclopropane, desflurane, enflurane, halothane, isoflurane, nitrous oxide, sevoflurane, and xenon) and 8 aromatic compounds (benzene, fluorobenzene, o-difluorobenzene, p-difluorobenzene, 1,2,4-trifluorobenzene, 1,3,5-trifluorobenzene, pentafluorobenzene, and hexafluorobenzene) and, for comparison, etomidate.

为了验证这个假说，我们检测静脉注射 NMDA 阻滞剂 MK-801和 CPP 来降低8种常规吸入麻醉药（环丙烷，地氟醚，安氟醚，氟烷，异氟醚，一氧化二氮，七氟醚和氙）和8种芳香族化合物（苯，氟苯，邻二氟苯，对二氟苯， 1，2，4-三氟苯， 1，3，5-三氟苯，五氟苯和六氟苯的 MAC 值，依托咪酯作为对照组。

A variety of fennel(Foeniculum vulgare var.dulce)whose blanched aromatic ,celerylike stalks are eaten as a vegetable.

由不饱和以及芳香化合物振动产生的吸收谱带将在第三和第五章中讨论。

In this study was carried out in the greenhouse of Shandong Agricultural University,'Fragaria×ananassa Duch.

中文摘要：本研究在山东农业大学日光温室进行，以盆栽'丰香'和'罗莎'草莓为试材。采用顶空固相微萃取-气谱-质谱联用技术测定果实中芳香物质，DTNB比色法测定果实醇酰基转移酶活性。

Flowers solitary or several in a subumbel, funnelform, fragrant.

花单生或者数个为近伞形，漏斗状，芳香。

Flowers solitary, not fragrant; pedicel 7--10 mm. Perianth purple-red, funnelform, 4--6 cm.

花单生，不芳香；花梗花被紫红色7-10毫米，漏斗状，4-6 厘米。

Add natural disposition, can help advance somebody's career with soil, bush shape, tall 2 ～ 3 meters; The bine is compressed, foliaceous, much more ramose, in costal region is remarkable; Articulatory, do not have thorn glossily; Beautiful sheet is unripe, large body, two side are symmetrical, pure white, have scent, be in about evening 10 when the left and right sides is open, next dies of old age before morning day break.

附生性，能用土壤栽培，灌木状，高2～3米；茎扁平，叶状，多分枝，中肋显著；分节，光滑无刺；花单生，大形，两侧对称，纯白色，有芳香，约在晚间10时左右开放，翌晨天亮前凋谢。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。