Density Functional Theory method was used to optimize the geometries of 209 PCDE molecules, 209 PBDE molecules and 75 PCDD molecules at the B3LYP/6-31G* level. Using computed structural parameters as theoretical descriptors, the forward stepwise multiple regression technique was adopted to obtain QSPR models of environmental partition properties for these POPs by using GQSARF 2.0 and SPSS12.0 for windows programs. The obtained QSPR models are as follows:(1) QSPR models for predicting subcooled liquid vapor pressure, n-octanol/water partition coefficients lgK_(ow and subcooled liquid water solubilities -lgS_(w, l of PCDEs, of which correlative coefficients (R~2) are 0.988, 0.958 and 0.959 and the root-mean-square-error of estimation are 0.134, 0.116 and 0.327 respectively.(2) QSPR models of lgPL and n-octanol/air partition coefficients lgK_(oa for PBDEs, which both contain three structural parameters. The values of R2 for the two models are both 0.997 while the values of RMSEE are 0.073 and 0.062 respectively.(3) QSPR models of lgKow and–lgS_ for PCDEs, which both have one variable (mean molecular polarizability, α). The values of R~2 for the two models are 0.978 and 0.866 and the values of RMSEE are 0.300 and 0.270 respectively.(4) The molecular structures of 24 substituted naphthaline compounds were optimized using Hartree-Fock and DFT methods at four different levels and the same means was used to obtain four three-parameter (EHOMO, q~+ andα) QSPR models of lgK_. The model at the HF/6-311G** level is the best one of which R2 is 0.9662 and RMSEE is 0.380.(5) QSPR study for environmental partition properties of PCDEs was also performed using position of Cl substitution method in which simple parameters of substitution position were taken as descriptors. The multiple linear regression was performed with GQSARF 2.0 and SSPS 12.0 for windows programs to obtain QSPR models of lgP_L, lgK_ and–lgS_ for PCDEs of which R~2 are 0.991, 0.983 and 0.965 and RMSEE are 0.311, 0.100 and 0.300 respectively.
采用密度泛函理论方法在B3LYP/6-31G*水平上对PCDEs、PBDEs和PCDDs的分子结构进行了全优化计算，以计算得到的量子化学参数作为理论描述符，采用GQSARF 2.0和SPSS 12.0 for windows统计程序进行正向逐步回归分析，建立了这些POPs的环境分配性质的QSPR模型：(1) PCDEs的过冷液体蒸汽压、正辛醇/水分配系数lgK_(ow和水溶解度-lgS_(w，l的QSPR模型，这3个QSPR模型的相关系数(R2)分别为0.988、0.958和0.959，估计的均方根误差分别为0.134、0.116和0.327；(2) PBDEs的lgPL和正辛醇/空气分配系数lgK_(oa的QSPR模型，这两个模型都包含三个分子结构参数，其R~2都为0.997，RSMEE分别为0.073和0.062；(3) PCDDs类化合物的lgK_和-lgS_w的QSPR模型，两个模型都只含一个变量，其R~2分别为0.978和0.866，RSMEE分别为0.300和0.270；(4)采用Hartree-Fock和DFT方法，在4种不同水平上优化计算了24个取代萘系列化合物的分子结构，采用上述同样的方法分别建立了四种水平上的三变量lgK_模型，通过比较得到，在HF/6-311G**水平计算得到的模型最好，R为0.966，RSMEE为0.380；(5)同时，采用氯原子取代位置方法对PCDEs的环境分配性质进行QSPR研究，建立了PCDEs的lgPL、lgK_和-lgS_的QSPR模型，其R~2分别为0.991、0.983和0.965，RSMEE分别为0.110、0.100和0.300。
Laird started it with an infield hit followed by Lofton`s single, Wilkerson`s sacrifice fly and Teixeira`s double.
T+ Q$ M，P1 R，W/ m+ u 游骑兵在第7局对王小民乘胜追击再拿下3分，把领先比数拉到7比1，莱尔德以一记内野安打展开攻势，接著是洛夫顿击出的1垒安打，威克森的高飞牺牲打和泰克塞拉的二垒安打。； E5 K2 W# I m：S9 J8 g
The results of the meristic characters about the two species indicate that body length/body depth, body length/head length, head length/snout length and head length/eye diameter exhibited wider ranges compare with the previous recordations.
石鲽的体长L(下标 B8与体高D(下标 Ba之间的关系D=0.3250L+2.3263(r=0.7329)；体质量W(下标 Bs，g和体长L(下标 Bs，cm之间的关系W=0.2559(上标 2.1238) L (r=0.8138)。这两种鱼的可量可比性状：体长／体高、体长／头长、头长／吻长和头长／眼径的比值范围比原来研究记载的更加宽泛。
Assuming that it roughly takes t = E/W for the electron to loose all its energy and R = 5.0 x 10-11 m, what would be the lifetime of a hydrogen atom before it becomes a neutron?
如果粗略估计电子损失所有动能的时间为t = E/W，而R = 5.0 x 10-11 m，请估算氢原子变成中子前的寿命。
Throughout most of Onslaught block, there were two big decks – Astral Slide and Goblins – and then a few decks that were peripheral to the primary metagame, like Zombie Bidding, MWC, Form of the Dragon, G/R, and U/W.
贯穿整个环境之中，有两套王者-星幽滑移和精灵-和一些对于主流来说次要的套牌，像灵俑、大白、纯红大龙、红绿和蓝白。
In addition, Panasonic is also announcing the LUMIX G VARIO 45-200mm/F4.0-5.6/MEGA OIS lens and a wide-variety of accessories, including External Flash DMW-FL220(GN22 PL Filter: DMW-LPL52; Mount Adapter: DMW-MA1; Battery Pack: DMW-BLB13; DC Cable: DMW-DCC3; Soft Case: DMW-CG1; Soft Bag: DMW-BAG1; Shoulder Strap DMW-SSTG1-A/C/R; Shoulder Strap DMW-SSTG2-W; Shoulder Strap DMW-SSTG3-T.
此外，松下还推出了Lumix相机摹卡尔45-200mm/F4.0-5.6/MEGA光学防抖镜头，包括外部闪光地区小型- FL220（GN22）广泛的各种配件； PL滤镜：小型工程- LPL52；山适配器：小型工程- MA1，电池组：小型工程，BLB13，直流电源线：小型工程，DCC3，软袋：小型工程，化监，软袋：小型工程，BAG1；肩带DMW-SSTG1-A/C/R；肩带小型工程，SSTG2 -瓦；肩带地区小型- SSTG3 - T的。
In this place, no one will give me a hand when I fall, no one will let me cry when i hurt, no one will show me symperthy when i fail, only when I got strong enough to beat any hurt and dispise any dissernation.
w； p* r； p* c* P/ x3 D 可是在飞机上，当我看到刺眼阳光穿射进机舱来的时候，我还是有些想要流泪的感觉在涌上来。
I don't care if there is nothing better down there to bring up, whoever can't be any worse than watching this limp staff of 1 pitcher you can count on and 4 question marks the rest of the week.5 V z3 r: W
才不在乎下面没有比建仔更好的投手，再怎麼烂也不会烂过我们这群只有一人靠得住的先发。9 u0 S F4 U$ L- n
In this system, there are many method of data transfer (including:Modem, serial port, W/R 1C card, Infrared Transmitting, GSM Transmitting and embedded Internet), so the dependability is better than before.
此系统中的数据传输(包括Modem、串口传输和IC卡读写，也论及红外传输、GSM传输及嵌入internet式)，方式多样化，可靠性比目前的系统要好。
It w as a clear and unem otional expo sit ion of the P resi 2 dent ` s reason fo r w illing to begin a Ch inese - American dia 2 logue.
这篇发言清楚明白、心平气和地说明了总统希望开始中美对话的原因。6。
His t o r i an s hav e long b e en puzzl e d by dots, line s and sym bol s w h ich hav e b e en en gr a ved on wall s, bone s, and th e i vo ry tusks o f mam moths.
历史学家有长期地是迷惑被小圆点，线和符号哪个有是雕刻在---上墙，骨头，和那象牙长牙的长毛象。
We are a nation of C h r i s t i a n s and M u s l i m s, J e w s and H i n d u s - and non-believers.
我们是一个多民族的国家，有基督徒，有穆斯林，有犹太教徒，有印度教徒，更有非教徒。
The La-Sr-Co complex oxides nanometers powder were synthesized by solid-state reaction under microwave in which La2O3, Sr(CH3COO)2·1/2H2O, Co(CH3COO)2·4H2O were used. The influences of microwave power and heat time, decomposing temperature, decomposing time on particle size were investigated by means of uniform experimental design. The optimum conditions for preparation of La0.7Sr0.3CoO3 were microwave power = 600W, microwave heat time = 15min, decomposing temperature = 700℃ and decomposing time = 5h. Under these conditions, La0.7Sr0.3CoO3 nanometer particles with average diameter of 15.6nm and crystal form of Rhombohedral and space group of R-3c were obtained. Keyword: La serials complex oxides nanometer powder, Solid-state reaction under microwave, kinetics
利用水合乙酸盐、氧化物与草酸通过微波固相化学反应法制备了纳米镧锶钴复合氧化物，分别考察了微波加热功率、微波加热时间、热分解温度、热分解时间四个因素对产物平均粒径的影响，通过单因素实验分析了四个因素的取值，用均匀实验设计优化其工艺条件，得最佳工艺条件为：微波加热功率600W、微波加热时间15min、热分解温度700℃、热分解时间6h；在此条件下制得的产物平均粒径为15.6nm，主要物相为La0.7Sr0.3CoO3，结构属于钙钛矿相斜方六面体结构，空间群为R－3c。
We hereby inform our esteemed clients that the above two well known firms have this day been amalgamated, and will in future trade under the title of L.
谨宣告，自7月31日起，前在R。街10号的B。公司和在W。街100号的N。公司合并为C。公司，并迁往上列商业区新址，今后通讯请径寄上址为荷。
Loegering W Q%Macintosh R A%Burton C H Computer analysis of disease data to derive hypothetical genotypes for reaction of host varieties to pathogens Canadian Journal of Genetics and Cytology, 1971, null
朱小源%杨祁云%霍超斌伍尚忠水稻品种对稻瘟病的质量抗性和数量抗性的初步研究中国水稻科学，1999，3
With working pressure and maximum pressure ratio in the torus of 2.4MPa and 1.20 respectively, investigation on acoustic power output from the torus and resonator simultaneously is carried out when nitrogen gas is used. The maximum output power, thermal efficiency and exergy efficiency reach 364.25W, 11.2% and 16.02%, which increase by 52.2%, 33.3% and 22.57% respectively than those using only one R-C load in the torus.
以氮气为工质，工作压力为2.4MPa，在热声发动机环路压比稳定在1.20的情况下，从环路声容和谐振管处同时引出声功，获得了364.25W的最大声功，11.2％的最大声功输出效率以及16.02％的最大声功输出效率，这比单独从环路引出时分别提高了52.2％，33.3％和22.57％。
Yong-Hong Bao-Sheng Tianjin Metal Products Co., Ltd., China North China specializing in the production of stamping parts, metal gaskets, metal products, self-export enterprises, the company is located in Tianjin Ninghe, production plant is located in the Bohai Sea, 30 kilometers away from Tianjin Xingang, goods set in Hong Kong just over one hours time. Now our main stamping products - flat washers have been exported to many countries around the world, mainly the production of the standard are: law standard NF E 25-513, S de DIN125A/B, 9021, 126, 440 R, 1441, 1440, 433 round, etc. pad, square pad, square pad oblique; American Standard USS/SAE, F/W and the British Standard BS 3410, 4320, as well as other non-standard washer, but also supply your needs according to a variety of high-strength and special-shaped stampings.
天津市永红保胜金属制品有限公司，是中国华北地区专业生产冲压件，金属垫圈，五金制品产品的自营出口企业，公司座落在天津市宁河县，生产厂地处渤海之滨，距天津新港30公里，货物集港时间仅需40多分钟，现在我们的主要冲压产品—平垫圈已远销世界多个国家，主要生产的标准有：玛钢垫圈，F436加硬垫圈，法标NF E 25-513，德标DIN125A/B、9021、126、440R、1441、1440、433等圆垫、方垫、方斜垫；美标USS/SAE，F/W和英标BS 3410、4320以及其他非标垫圈，也可根据您的需求供应各种高强度和异型冲压件。
ABSTRACT Densification behaviour of Si3N4 ceramic pow der under CIP and die compaction was analyzed. Results from common Shima model w ere discussed. Compared with experimental data from literature, it is revealed that Shim a model is not so good and the employed parameters in Shima model are not very r ational at all.
摘 要 分析了Si3N4陶瓷粉末在冷等静压和模压下的材料致密化特性，讨论了常用的Shima模型的计算结果，与文献中的实验数据对比表明：Shima模型不能给出理想的分析结果，且材料性能数据的选取颇有争议。
In 1999, Nicholson further introduced the concept of strong clean rings as follows: A ring R is said to be strongly clean if every element of R is the sum of an idempotent element and an invertible element that commute with each other.
W.K.Nicholson进一步引入了强clean 环的定义：一个环R 被称为强clean环，如果R中的任意一个元素均可以表示成一个幂等元和一个单位和的形式，并且幂等元和单位可换。
T; z9 r: Q4 N1 `7 U5 I specialised double glazing and special acoustic seals will have to be fitted to the doors.
w'~b7 S3 d1 z，y 1 O 高速公路旁的房子和这些噪音最大的地方将需要镶嵌双层特别的玻璃和特别的听觉封条 w s Q' R3 w0 m5 R