查询词典 apparent frequency

SO〓〓/M〓O〓 solid superacid was applied to the photocatalytic oxidation of organic pollutants for the first time. Porous SO〓〓/TiO〓 solid superacid catalysts with high specific surface area were prepared by sol-gel method. The photocatalytic degradation of bromomethane was used as model reaction. The influence of impregnation with H〓SO〓 solution on the structure of catalysts and their photocatalytic performance was systematically studied by using X-ray diffraction, X-ray photoelectron spectroscopy, N〓 sorption analysis applying BET method, UV-Vis diffuse reflectance spectroscopy, FTIR spectroscopy, O〓-TPD and photocatalytic activity measurement. The acidity of TiO〓-based catalysts was investigated by Hammett indicator method, NH〓-TPD and IR spectra of pyridine adsorbtion. The mechanism of superacidifing effects on photocatalytic performances such as the photocatalytic degradation rate of bromomethane, apparent kinetic constant and apparent quantum efficiency was discussed.The results indicated that SO〓〓 is combined with metal ions of TiO〓 in a chelating bidentate mode.

本文首次将SO〓〓/MxOy型固体超强酸催化剂用于光催化氧化有机污染物研究，采用溶胶-凝胶法制备了具有多孔性和大比表面结构的二氧化钛基固体超强酸光催化剂SO〓〓/TiO〓，以光催化降解溴代甲烷为模型反应，系统地研究了H〓SO〓浸渍处理对催化剂表面酸性及其气相光催化性能的影响，结合XRD、BET、XPS、FTIR、Hammett指示剂法、吡啶吸附红外光谱、NH〓-TPD、O〓-TPD、紫外可见漫反射光谱等多种表征手段，深入地讨论了超强酸化对TiO〓的改性机理，阐明了引起SO〓〓/TiO〓超强酸催化剂光催化降解溴代甲烷的转化率、表观反应速率常数和表观量子效率变化的本质原因。

The result makes clear: 1 index of pressure of Chinese farmland zoology is older, be in ascendant trend, its are main the reason is our country farmland the area decreases in great quantities continuously and population increases;2 farmland pressure quickly to save time difference bigger, the farmland pressure of southeast and southwest is apparent prep above is mid with heighten of grade of index of pressure of zoology of farmland of municipality directly under the Central Government of upper zone;3 and southeast ministry area, upper, northwest and mid major area exponential grade is invariant, only mid with the decrescent of grade of index of a few district, but not apparent.

结果表明：1近11年的中国耕地生态压力指数比较大，并处于上升趋向，其主要原因是我国耕地面积持续大量的减少和人口快速的增加；2耕地压力省际差异比较大，东南和西南地区的耕地压力明显高于中部和北部地区；3直辖市和东南部地区耕地生态压力指数等级增高，北部、西北和中部的大部分地区指数等级无变化，仅中部和东北部的少数地区指数等级变小，但并不明显。

A novel method for determination of benzoyl peroxide with spectrophotometry was developed. Inclusion ratio of β cyclodextrin to dibenzoy peroxide and benzoic acid is obtained with spectrophotometry.The mechanism of the inclusion was studied,too. The results showed that β-CD react with dibenzoyl peroxide to form a 1:1 or 2:1 host-guest complex, with the apparent formation constants of 5.0× 10~2and 2.5× 10~4 , respectively.β-CD reacts with benzoic acid to form a 1:1 host-guest complex with the apparent formation constant of 6.9 × 10~2 after the dibenzoyl peroxide was reduced by hydroxyl ammonium chloride.

建立了用β环糊精测定过氧化苯甲酰的分光光度法，并测定了β环糊精与过氧化苯甲酰和苯甲酸的包结比，随着β-CD浓度的增大，可与BPO分别形成1：1或2：1的包容络合物，包结常数分别为5.0×10~2和2.5×10~4，与苯甲酸形成1：1的包容络合物，包结常数为6.9×10~2；由于包结物的吸光度值比过氧化苯甲酰的吸光度值大大增加，建立了一种当β-CD存在下，在水溶液中测定过氧化苯甲酰的方法。

The results indicated that (1) the 147Pm, 141Ce and 147Nd had strong adsorptivity in soil, so they were hard to transfer and easily accumulated in soil or sediment;(2) all the organisms (5 aquaties and 4 eatable plants) tested showed apparent 147Pm concentrating capabilities;(3)the residues of 147Pm, 141Ce and 147Nd were unevenly distributed in the animal's viscera and tissues, higher residues were found in bone, marrow, eye, brain, heart, adipose and testis, showing selective accumulation;(4) with intraperitioneal dosing of Nd or Ce 200mg ·kg -1 apparent inhibition to gonadial hormone secretion in mice was found and with 200 and 800mg·-1 of Ce added in feed, the malformation rate of spematozoon showed higher.

综合研究结果表明： 14 7Pm、14 1Ce和14 7Nd在土壤中具有强的吸附性，而且难以迁移，易于在土壤和底泥中积累；( 2 )供试的 5种水生生物、4种陆生食用植物对14 7Pm均具有明显的富集性；( 3) 14 7Pm、14 1Ce、14 7Nd在动物体内脏器和组织间呈不均匀分布，在骨骼、骨髓、眼、大脑、心脏、脂肪和睾丸中残留量较高，表现了明显的选择性蓄积；( 4 )一次性腹腔注射2 0 0mg·kg-1的Ce和Nd对小鼠性腺激素的分泌有明显的抑制作用，以 2 0 0和80 0mg·-1的Ce随饲料摄入对雄性小鼠精子畸形率明显升高。

MIPC was photocatalytically transformed to 3,4-dihydroxyl hypnone, 2-iso-butyl phenol and acetic acid, and mineralized ultimately in oxygenated TiO2 slurries. The photocatalytic degradation processed according to first order kinetics with the apparent rate constant depending on initial concentration, light intensity and the amount of catalyst. The amount of catalyst had an optimum value (0.5g/L). The apparent rate was inversely proportional to square root of the initial concentration approximately.

MIPC能被光催化转化成3，4-二羟基苯乙酮、2-异丁基苯酚和乙酸等产物并最终被矿化，MIPC的光催化反应过程符合一级动力学规律，其表观速率常数与MIPC的起始浓度、TiO2量和光强等因素有关，MIPC降解的反应速率与入射光强成正比，与MIPC初始浓度的平方根成反比。

Result more Xi Luowei orders cure troop is calorific drop and pharynx clip is phlogistic improve, the time that liver narrows after lienal lymph node enlargement all relatively interferon contrasts the group is apparent shorten (P · 05), GCV group shows efficiency interferon of apparent prep above group (P · 05 or 0 · 01), short-term use more dosage control is in Xi Luowei 8~10mg/, did not see apparently harmful response happens.

结果更昔洛韦治疗组发热下降和咽夹炎好转，肝脾淋巴结肿大后缩小的时间均较干扰素对照组明显缩短(P·05)，GCV组显效率明显高于干扰素组(P·05或0·01)，短期使用更昔洛韦剂量控制在8~10mg/，未见明显不良反应发生。

In the temperature rang from 120 to 150℃, the relations between the apparent reaction rate constant and temperature of the photochlorination in the side chain of m-chloromethyl benzene were: min-1 min-1 min-1 The apparent reaction activation energies are: Ea1=33.54、Ea2=32.45、Ea3=24.26kJ/mol.

在120～150℃温度范围内，间氯甲苯侧链光氯化表观反应速度常数与温度的关系为： min-1 min-1 min-1 表观反应活化能分别为：Ea1=33.54、Ea2=32.45、Ea3=24.26kJ/mol。

The results of simulation indicated that the new model can be applied toany loading condition, describe phenomena that the Terzaghi consolidation modelcan not, such as the apparent preconsolidation pressures that depend on strain rate, increment in apparent preconsolidation pressures due to creep during sustained loading, and change of porewater pres...

计算与实验结果对比表明，该模型能应用于一维条件下任何加载方式的固结模拟，能描述表观前期固结压力的应变率效应、次固结引起的表观前期固结压力增加、连续加载下超静孔隙水压的增长规律等一些已被实验广泛证实且不能被太沙基固结理论反映的现象。

The rise of happy net, let Chen Yizhou must amend the judgement that issued April this year:"Structure of domestic SNS market already was decided ", but very apparent, the net inside school is apparent cannot sit by and watch is happy the net produces so big menace to its, must go up in be in harmony particularly 100 million dollars, but enlarge market share to investor acceptance at the same time again, after entering white-collar market, sidewards is killed give a happy network, will block inside school was in besides white-collar market.

开心网的崛起，让陈一舟不得不修正了在今年4月份下的判断：&国内SNS市场格局已定&，但是很显然，校内网显然不能坐视开心网对其产生如此大的威胁，特别在融得上亿美元，但是又同时向投资人承诺扩大市场份额，进入白领市场之后，又横着杀出一个开心网，将校内挡在了白领市场之外。

Apparent, do poineering work board after rolling out, exit channel to widen as what invest a project, let be covetous on the gold digger of this industry begins ready to do sth again, but to doing poineering work board, especially domestic investment orgnaization already had been experienced a few times " the wolf came " awkward, before be being compared right now apparent more sedate, a lot of soberer also.

显然，创业板推出后，随着投资项目的退出渠道拓宽，让觊觎该行业的淘金者又开始蠢蠢欲动，但对于创业板，特别是国内投资机构已经历过几次&狼来了&的尴尬，此时相比之前显然更稳重，也冷静很多。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。