CA-CTSs including N,O-carboxymethyl chitosan,N,O-1-carboxyethyl chitosan (N,O-1-CEC),N,O-2-carboxyethyl chltosan(N,O-2-CEC),N-carboxymethyl chitosan and N-1-carboxyethyl chitosan(N-1-CEC) are quaternized using active quaternary salts prepared in laboratory.5 series including 25 kinds amphoteric chitosans characterized with polymeric ampholyte,in which 24 kinds are synthesized firstly,are obtained, 2-Hydroxypropyl dimethylbenzyl ammonium N,O-(1-carboxyethyl) chitosan chloride (GDMBA-N,O-1-CEC) is hydrolyzed into serial low molecular weight GDMBA-N, O-1-CEC with acid as catalyst and microwave as assistant instrumentality innovately.

以合成的活性季銨鹽改性了N好大好硬好深好爽舒服，O-羧甲基殼聚糖啦啦啦资源在线完整免费高清观看3、N尹人影视，O-1-羧乙基殼聚糖(N日韩主播欧美精品视频在线播放，O-1-CEC)、N一級帶毛片，O-2-羧乙基殼聚糖(N日韩欧美视頻，O-2-CEC)、N-羧甲基殼聚糖和N-1-羧乙基殼聚糖(N-1-CEC)等羧烷基殼聚糖自拍高潮日韩在线视频，得到5個系列25種具有兩性高分子電解質特征的新季銨化羧烷基殼聚糖国产毛片视频自拍三级网，其中24種為首次合成；創(chuàng)新提出以微波輔助酸催化的方法催化2-羥丙基二甲基芐基-N欧美肉视频网站，O-(1-羧乙基)殼聚糖氯化銨(GDMBA-N欧美变态区另类，O-1-CEC)水解，得到了低分子量的GDMBA-N强奷伦奷视频在线观看，O-1-CEC中文字幕福利。

When n/n=0, the product is the mixture of h-WO3 (hexagonal system WO3) and WO3.1/3H2O, and have a morphology of nanorods; when n/n=0.5 or n/n=l, the product is γ-WO3, and have a morphology of rectangular flakes; when n/n=2, the product is β-WO3, with the same morphology of rectangular flakes.

當n/n=0時欧美aaaaaaaa片，產(chǎn)物為h-WO3和WO31/3H2O組成的混合物，形貌為納米棒无码专区日韩精品无码字幕；當飛n/n=0.5和n/n=1時自偷自拍亚洲一区二区，產(chǎn)物為γ-WO3形貌為矩形片；當n/n=2時国产成人情侣在线手机免费观看视频，產(chǎn)物為β-WO397国产乱伦无码，形貌同樣為矩形片。

Disclosed is a leaky-wave dual polarized slot type antenna, including: first and second feeding circuit sections comprised of N-first strip lines and N-second strip lines with a loop every first period along the X-axis on the first dielectric layer and a second period along the Y-axis, in which the N-first strip lines and the N-second strip lines are parallel to each other being alternate, and each length of Ls1 and Ls2 for the first period satisfies the equation of , first and second multi-channel dividers formed at once and the other sides of the first dielectric layer, to connect the N-first strip lines and the N-second strip lines parallel with each other; and first and second central ports formed in the opposite direction of the cavity, each of the feeding circuit sections being connected to the first and second multi-channel dividers; and first and second slot sections being formed by patterning the second shielding layer, in which M-first and M-second slots are arrayed along the direction of the X-axis and each of the first and second slots forms N-row first and N-row second slot arrays, respectively, which cross the first and second strip lines for each, the first slot and the second slot being orthogonal to each other.

公開了一種漏泄波雙偏振槽型天線日韩一日韩欧美中文字幕，包括：第一和第二饋電回路部分，其具有沿著X軸在第一介電層每第一周期以及沿著Y軸的第二周期形成具有環(huán)路的N第一帶狀線和N第二帶狀線国精品自拍现拍在线拍，其中N第一帶狀線和N第二帶狀線彼此平行并交替任我操在线，并且對第一周期的各Ls1和Ls2的長度滿足等式，第一和第二多通道分配器尋形成在第一介電層的一側和另外一側上麻豆国产原创视频，以連接彼此平行的N第一帶狀線和N第二帶狀線国产中文字幕一级片在线观看；以及形成在腔的相對方向中的第一和第二中心端口，每個饋電回路部分連接到第一和第二多通道分配器黄色视頻欧美；以及第一和第二槽部分人人操日日，所述第一和第二槽部分通過對第二屏蔽層形成模式而形成，其中M第一和M第二槽沿著X軸的方向安置免a一级a免费观看视频，各第一和第二槽分別形成N行第一和N行第二槽陣列操逼冒白浆，其對每個橫過第一和第二帶狀線，第一槽和第二槽彼此正交色狠狠影视一区二区三区。

This work, concentrated on the asymmetric allylation of aldehydes controlled by different chiral auxiliaries prepared from rotational pure tartaric acid, can be divided into three parts.The first part aims to review the developments of chiral drugs and asymmetric synthesis, from which derived the present research topic backgrounds and works.Synthesis and applications of allylation from aldehydes are the second part of the thesis. By optimizing the reaction conditions, such as solvents, temperature, time and chiral auxiliaries like N,N\'-dibenzyl tartamide, N,N\'-p-dimethylphenyl tartamide, N,N\'-o-dimethylphenyl tartamide, N,N\'-o-dichlorophenyl tartamide, N,N\'-a-dinaphyl tartamide, N,N\'-dicyclohexyl tartamide and N,N\'-diphenyl tartamide, ideal experimenttal conditions are obtained according to HPLC monitoring, as well as the auxiliaries\' recoveries experiments. Starting from benzaldehyde and 3-bromopropaldehyde, N,N\'-dibenzyl tartamide is considered the best auxiliary in this reaction.

本文介紹了醛的不對稱烯丙基化反應人人干,人人摸,人人操，以光學純酒石酸為原料，研究了不同構型手性配體在醛的烯丙基化反應中的立體選擇性国产福利在线影院，全文共分三部分十個章節(jié)：第一部分對當前手性藥物和手性技術進行了概述美女日韩欧美国产，并由此展開了本文的研究背景和任務；第二部分為有機合成部分三级a片网址，對醛的不對稱烯丙基化反應進行了深入探討91尤物国产大尺度福利网，以苯甲醛為原料對反應條件進行優(yōu)化，在優(yōu)化的反應條件下對制備的七種可回收手性酰胺配體(N-芐基酒石酸二酰胺亚洲免费va在线播放、N-對甲苯基酒石酸二酰胺日韩综艺午夜在线看免费、N-鄰甲苯基酒石酸二酰胺、N-鄰氯苯基酒石酸二酰胺操一操a片、N-a-萘基酒石酸二酰胺97无码免费人妻超级碰碰碰中、N-環(huán)己基酒石酸二酰胺和N-苯基酒石酸二酰胺)進行篩選，優(yōu)化配體回收實驗條件久久久经典中文字幕一区二区三区，最終確定出N-芐基酒石酸二酰胺在苯甲醛的不對稱烯丙基化反應中具有較大優(yōu)越性日韩欧美精品第一页，結晶回收的手性配體光學純度保持不變精品毛片一区二区免费看。

And to make the product be easy of purification, the excess of amine was reduced to 50% from 150%. Then the diiodoalkane reacted with dialkylmethylamine into diquaternary ammonium iodide, and obtained three diquaternary compounds whose spacer groups were -(CH2)6-, N,N"-dimethyl- N,N,N",N"-tetraoctyl-1,6-hexane diammonium diiodide, N,N"-dimethyl-N,N,N",N"-tetradecyl-1,6-hexane diammonium diiodide, N,N"-dimethyl-N,N,N",N-tetradodecyl -1,6-hexane diammonium diiodide.

對于更長間隔鏈的雙子型季銨鹽，一方面為了加快親核取代反應速率资源多高清视频黄色软件，先將1一级免费黄片插插插，6-二氯己烷、3-氧雜-1欧美精品一色喲哟，5-二氯戊烷轉化成1你懂得视频网站，6-二碘己烷、3-氧雜-1美国超碰，5-二碘戊烷国产福利一区在线，另一方面為了降低產(chǎn)物提純的難度，將叔胺的過量由150%降到50%激情小说狠狠爱，使二碘代烷與雙長烷基甲基叔胺在相同的溫度下四川老熟女下边又黑又肥、反應相同的時間，經(jīng)過相同的后處理婷婷五月一区二区三区，得到3個間隔鏈為-(CH2)6-的雙子型季銨碘化物深夜久久久，(C8H17)2N+(CH3)(CH2)6 (CH3)N+(C8H17)2·2I-、(C10H21)2N+(CH3)(CH2)6(CH3)N+(C10H21)2·2I-和(C12H25)2N+(CH3)(CH2)6(CH3)N+(C12H25)2·2I-激情文学,图片区,视频区,偷拍。

Dibutyltin maleate,dioctyltin maleate,N-phenyl maleimide, N-(p-chlorophenyl) maleimide,N-(p-nitrophenyl) maleimide with unsaturated groups were synthesized using dibutyltin oxide,dioctyltin oxide,maleic anhydride, aniline,p-chloroaniline,p-nitroaniline as raw materials,respectively.Then dibutyltin male,ate/styrene bipolymer,dibutyltin maleate/styrene/methyl acrylate terpolymer,dibutyltin maleate/styrene/N-phenyl maleimide terpolymer ,dibutyltin maleate/styrene/N-(p-chlorophenyl) maleimide terpolymer ,dibutyltin maleate/styrene/N-(p-nitrophenyl) maleimide terpolymer ,dioctyltin maleate/styrene biopolymer,dioctyltin maleate/styrene/methyl acrylate terpolymer,dioctyltin maleate/styrene/ N-phenyl maleimide terpolymer,dioctyltin maleate/styrene/ N-(p-ehlorophenyl) maleimide terpolymer[P(DOTM/St/NC1PMI)],dioctyltin maleate/styrene/N-(p-nitrophenyl) maleimide terpolymerwere synthesized using DBTO,DOTO,PMI,N-p-ClPMI,N-p-NOPMI,styrene and methyl acrylate as monomers,respectively.

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The increased amount of non--exchangeable NH4^＋-N during the incubation indicated as the following tendency, namely, Eum-Orthic Anthrosols 〉 Los - Orthic Entisols 〉 Hap-Ustic Isohumisols 〉 Ust-Sandiic Entisols. Organic material influenced significantly the increased amount of non-exchangeable NH4^＋-N （P was 0.0002, 0.0004 and 0.0003 when incubated at 20 d, 50 d and 60 d, respectively）. NH4^＋-N increased remarkably when Stlpa bungeana and Medicago sativa were added compared with no addition. The contents of non-exchangeable NH4^＋-N increased significantly when added （NH4）2SO4 compared without addition at 20 d, 40 d and 60d of incubation and P was 0.0037, 0.0033 and 0.0027, respectively. It was the result that the NH4^＋-N from （NH4）2 SO4 was fixed within the soil. The increased amount of non-exchangeable NH4^＋-N increased significantly for different soils, on which different vegetation types grew before the collection of soil samples, when incubated at 20 d （P=0.0434）, but not significantly at 40 d and 60d （P=0.7378 and 0.5375）. The increased amount of non-exchangeable NH4^＋-N in the soil, on which crop straw and nitrogen fertilizer had been incorporated for a long-term period, was larger than that of no addition, but it was not significantly different among these two fertilization models. Soil clay, total N and organic matter were positively correlated remarkably with the contents of non-exchangeable NH4^＋-N, the increased amount of non-exchangeable NH4^＋-N had no correlation with soil clay, whereas it had significantly positive correlation with total N and organic matter.

培養(yǎng)期間非交換性NH4^＋-N的增加量均表現(xiàn)為以土墊旱耕人為土最大色综合合久久天天综合网，其次是黃土正常新成土特级肏屄视频，簡育干潤均腐土和干濕砂質新成土較小；添加有機物料極顯著影響培養(yǎng)期間的非交換性NH4^＋-N增加量（培養(yǎng)20d偷窥自拍欧美色图、40d和60d時P分別為0.0002色欲性爱欧美性爱，0.004和0.0003），表現(xiàn)為紫花苜蓿和長芒草土壤非交換性NH4^＋-N的增加量均極顯著高于不添加有機物料的對照土壤免费黄色网络；在培養(yǎng)20d亚洲男人的天堂在线网址、40d和60d時，加（NH4）2SO4土樣非交換性NH4^＋-N的增加量顯著大于不加（NH4）2SO4土樣（戶分別為0.0037国产天天干视频自拍，0.0033和0.0027）无码又爽又刺激免费视频，這是土壤對（NH4）2SO4中NH4^＋-N固定的必然結果；不同植被類型土壤培養(yǎng)20d時的非交換性NH4^＋-N增加量差異顯著（P=0.0434）久久久久久久妓女精品影院，培養(yǎng)40d和60d時差異不顯著（p分別為0.7378和0.5375）久久精品国产精品久久人；長期秸稈和氮肥配施土壤非交換性NH4^＋-N增加量大于不施肥對照土壤，但差異不顯著土壤黏粒国产三级精品视频、全氮和有機質與培養(yǎng)0d永久黄网站色视频免费费、20d、40d和60d時土壤的非交換性NH4^＋-N含量均呈極顯著正相關一级大鸡吧毛片视频；而非交換性NH4^＋-N的增加量與粘粒無相關性99国产色视频大全，但與全氛和有機質呈顯著正相關www狼友。

Four hemicyanine derivatives,-N-(4-sulfobutyl)-4-[2-(4-N,N-dimethylamino-phenyl) etheny1] pyridinium (P1),-N-(4-sulfobutyl)-4-[2-(4-N,N-dimethylaminophenyl)-1,3-buteny1] pyridinium (P2),-N-(4-sulfobutyl)-4-2-(4-N,N-dimethylaminophenyl) ethenyll quinolinium (Q1) and-N-(4-sulfobutyl)-4-

合成了具有不同共軛鏈長度的吡啶鹽類及喹啉鹽類半菁染料-N-（4-磺酸丁基）-4-[2-4-N欧美姓爱一二三四区，N-二甲基氨基苯基）乙烯基]吡啶鎓鹽(P1、-N-（4-磺酸丁基）-4-[2-4-N亚洲国产一区二区三区网站，N-二甲基氨基苯基）丁二烯基]吡啶鎓鹽(P2欧美三级性生活视频、-N-（4-磺酸丁基）-4-[2-(4-N，N-二甲基氨基苯基)乙烯基]哇琳鎓鹽(Q1)以及-N-（4-磺酸丁基）-4-[2-4-N91免费网址在线手机，N-二甲基氨基苯基丁二烯基]喹啉鎓鹽(Q2)狠狠婷婷综合久久久久久。研究了它們的光物理性質，并將它們用作TiO2納米晶電極的光敏化劑引入光電化學電池a片免单网址。

Three cationic surfactants, N -dodecyl- N -(2-hydroxyethyl)- N , N -dimethylammonium bromide, N -tetradecyl- N -(2-hydroxyethyl)- N , N -dimethylammonium bromide and N -cetyl- N -(2-hydroxyethyl)- N , N - dimethylammonium bromide have been synthesized.

合成了 N -十二烷基- N -(2-羥乙基)- N 九九精品无码， N -二甲基溴化銨、 N -十四烷基- N -(2-羥乙基)- N www.850ppcom， N -二甲基溴化銨和 N -十六烷基- N -(2-羥乙基)- N 欧美性爱一级特黄片， N -二甲基溴化銨等3個季銨鹽陽離子表面活性劑。

The calculated results show that azido in azides has linear structure , the most optimized CaN6 has linear structure , and the most optimized (CaN6)n (n=2～5) clusters have chain structure of perpendicularity of approximate diamond composed by two azido with two Ca atoms . The middle N atoms of azido show positive, the N atoms at both ends of azido show negative, and the N atoms effected with Ca atoms directly show more negative . There is strong ionic bond between the Ca and N atoms. The IR spectra of the most optimized (CaN6)n (n=1～5) clusters have four vibrational sections , the whole strongest vibrational peak lies in 2195～2280cm-1,and the vibrational mode is anti-symmetric stretching vibration of N-N bonds in azido . Stability analysis show that (CaN6)3 and (CaN6)5 clusters are more stable than other clusters .

結果表明欧美国产黄色一级，疊氮化合物中疊氮基以直線型存在欧美人与动性行为另类，CaN6團簇的最穩(wěn)定結構為線型結構，(CaN6)n(n=2～5)團簇首先由兩個疊氮基與兩個Ca原子構成一個近似菱形国产超黄色视频，再由菱形相互垂直形成鏈狀最穩(wěn)定結構国内久久久久久久久久精品影院；疊氮基中間的N原子顯示正電性，兩端的N原子顯示負電性小黄片真人视频毛片，且與Ca直接作用的N原子負電性更強另类国产资源在线观看，金屬Ca原子和N原子之間形成很強的離子鍵殴美视频二区性爱；(CaN6)n(n=1～5)團簇最穩(wěn)定結構的IR光譜分為4個部分，其最強振動峰均位于2195～2280cm-1日韩一级毛一欧美一级57ppp人与兽，振動模式為疊氮基中N-N鍵的反對稱伸縮振動老熟妇一级毛片免费高清；穩(wěn)定性分析顯示，(CaN6)3和(CaN6)5團簇相對于其他團簇較為穩(wěn)定亚洲最新毛片一卡二卡。