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BP neural network based on adaptive UKF is introduced in this paper for the standard BP neural network has slow converges,local minimum value and weak generalization ability.It can train weight of BP and improve the efficiency of BP without linearization by using the frame of Kalman filters and adaptive factor to adjust the variance of dynamic model.

1引言1986年，Rum elhart和M cC lelland等人在多层前向神经网络模型的基础上，提出了误差反向传播学习算法(BackPropagation简写BP)，该算法是目前在神经网络中应用最广泛的算法，它解决了多层前向神经网络的学习问题[1]。

The results showed that orexin-like immunoreactiveneurons were observed in the medial preoptic nucleus,periventricular nucleus,paraventricular nucleus,supraoptic nucleus,dorsomedial nucleus,perifornical nucleus,mammillary nucleus,anterior area,lateral area and posterior area of the hypothalamus,with majority in the lateral area,supraoptic nucleus and mammillary nucleus and with minority in t...

结果表明，在猪下丘脑内，开胃素A免疫阳性神经元分布于下丘脑的视前内侧区、室周核、室旁核、视上核、背内侧核、穹隆周核、乳头体核、前区、外侧区和后区等部位，以下丘脑外侧区、乳头体核和视上核出现的免疫阳性神经元最多，以室周核的最少。这一结果与在其他动物上获得的基本相似。

The biomechanical tests showed that two kinds of artificial bones had not significant difference on compressive strength and Young\'s modulus(P＞0.05),while the flexural strength of nano-nacre artificial bone was less than the control group(P＜0.05).3.The results of CCK-8 showed that the difference were not significant in each group,the proliferation of osteoblast reached the peak at the 5th day;7 days after being co-cultured,the total protein content of study group was higher than control group and blank group(P＜0.05),while the difference between control group and blank group was not significantP＞0.05The difference of alkaline phosphatase activities among three groups was not significant(P＞0.05The SEM view showed that osteoblast attached and grew well in two kinds of artificial bone.4.X-ray photography showed that two kinds of powder started to degrade in 2 weeks;this phenomenon became more appear in 4 weeks,nano-nacre powder degraded faster than micron-nacre powder,while the hole shadow was easy to be found;in 8 weeks,all the femoral holes recovered and returned to normal bone mineral density in all groups.Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone grew fastest around the bone defect area in study group,while most slowly in blank groupP＜0.05 SEM(scanning electron microscope observation showed that nano-nacre powder degraded more quickly.The same result can be found through the demineralized sections morphometric analysis,and both of the composite artificial bones made from those two kinds of nacre powder had the good connection with the adjacent tissue in rats body without apparent inflammatory response.5.X-ray photography showed that rabbit\'s bone defects healed faster in study group since NNAB implanted than in control group since MNAB implanted.At 24 weeks after operation,bone density in radial defects had nearly accessed to the normal area,while lower in control group,and turned up nonunion in blank group;The checking of BMD showed that results in study group were higher than those in control group at 8,16 and 24 week(P＜0.05), and the difference between the BMD values in study group at 24 week and those in blank group was not significant(P＞0.05).The gross specimens showed satisfactory histocompatibility both in study group and in control group,with bone tissue growing from two sides into the center of implanted materials; Normal slices in HE stain and hard tissue grinding slices in Stevenel\'s blue/Van Geison\'s picro-fuchsin stain showed that the bone growth tendency was better in study group than that in control group,and the medullary cavity had been penetrated to the implanted materials in study group at 24 week;Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone in both groups grew fastest 8 weeks after surgery,while slow down at 16 week.

纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨分别与成骨细胞共培养后，其各时间点CCK-8法检测值与空白对照无显著差异(P＞0.05)，成骨细胞均在第5天达到增殖高峰期；培养7天后，实验组细胞蛋白含量高于对照组及空白组(P＜0.05)，后两者之间则无显著差异P＞0.05碱性磷酸酶活性在三组间均无显著差异(P＞0.05电镜下可见成骨细胞在两种人工骨上都有良好生长贴附能力。4.X-ray显示两种粉体在大鼠股骨骨洞植入第2周时都开始出现了降解，第4周时更为明显，纳米珍珠层粉较之微米珍珠层粉降解更快，而空白对照组骨洞阴影仍可见，至8周时，则所有组骨洞均己闭合修复，X-ray下已不可见原钻孔痕迹，恢复正常骨质密度；硬组织磨片四环素荧光双标记结果显示纳米珍珠层粉植入组较其余两组在骨缺损区周围新骨生长速度更快，空白组速度最慢P＜0.05电镜观察及常规脱钙切片亦可见到纳米粉体降解较快；由以上两种原材料制得的纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨在大鼠体内均与周围组织结合良好，无明显炎症反应。5.X-ray显示纳米珍珠层/消旋聚乳酸复合人工骨植入兔桡骨缺损区后其骨愈合速度较对照组微米珍珠层/消旋聚乳酸复合人工骨植入的快，至植入术后24周，实验组骨缺损区接近正常骨密度，对照组骨缺损区密度较低，空白组则呈现骨不连状态；骨密度测量结果显示术后8周、16周、24周实验组的骨密度值高于对照组(P＜0.05，24周实验组的骨密度值与术前所测得的正常值无显著性差异P＞0.05动物取材大体所见均显示组织相容性良好，骨组织逐渐由植入材料两端向中央生长；常规切片HE染色及硬组织磨片Stevenel\'s blue/Van Geison\'s picro-fuchsin联合染色均可见实验组骨缺损区长势优于对照组，至术后24周，实验组骨髓腔与材料已呈相交通状；硬组织磨片荧光显微镜下观察，两组材料在术后8周处于骨生长最快速时期，16周时速度开始减慢，术后4、8、16周时实验组的新骨生长速度均较对照组的快

Result The flexibility of the scaffold material was powerful. The load-elongation curve of the mechanical testing was similar to that of ACL, the maximum load, the ultimate stress and the Young's modulus of the scaffold materials were 52.61 N, 14.96 MPa and 202.08 MPa respectively. Human ACL cells displayed the representative characteristercs of the ligamentous fibroblasts, and synthesized extracellular matrix, such as type Ⅰand Ⅲ collagen protein. The scaffold materials had no cytotoxicity. Human ACL cells adhered, grew and proliferated well both on the surface and in the holes of the scaffold materials.

结果］韧带支架材料的柔韧性强，拉力测试的负荷－拉伸曲线与韧带的拉伸曲线相似，其最大负荷、极限应力和弹性模量分别为52.61N、14.96MPa和202.08MPa；体外分离培养的人前交叉韧带细胞呈典型的成纤维细胞特征，能在体外分泌Ⅰ、Ⅲ型胶原等细胞外基质；支架材料无细胞毒性，人前交叉韧带细胞可在支架材料上黏附、生长并分泌细胞外基质。

Results There was a similar distributive pattern of Neul, PPCA and β-gal in the inner ear. Neul intense staining was observed in the cochlear spiral ganglion cells, spiral limbus, spiral ligament, vestibular ganglion cells, cristae, maculae hair cells, and weak staining in inner hair cells, outer hair cells, supplying cells of the organ of Corti and stria vascularis. The intense staining of PPCA and β-gal were observed in the spiral ganglion and vestibular ganglion cells, and weak staining in the spiral limbus, spiral ligament, stria vascularis and organ of Corti. The inner ear exhibited no staining when Neul, PPCA and β-gal were deficient, respectively.

Neul最强的染色主要在螺旋神经节细胞、螺旋韧带、螺旋缘、前庭神经节细胞及壶腹嵴、球囊和椭园囊感觉毛细胞，较弱的染色分布于血管纹和Corti器内、外毛细胞及支持细胞；PPCA和β-gal在螺旋神经节和前庭神经节细胞有较强的染色，血管纹、螺旋韧带、螺旋缘和Corti器内、外毛细胞及支持细胞呈较弱的染色反应；各自酶缺乏时内耳免疫染色消失。

Results: Before the fixed bridge was applied, under vertical load, the high-stress region was near around the apical of periodontal ligament with mainly compressive stresses. Under oblique load, the high-stress region was near around the cervical of periodontal ligament with both tensile and compressive stresses. After the fixed prosthodontics, stress and strain distributions were similar with that when the fixed bridge was not applied. But the maximum stress, strain and displacement increased apparently. The stresses in exterior surface of periodontal ligament were larger than that of interior surface; this character of periodontal ligament under vertical load was more obvious than that under oblique load.

结果：固定桥修复前，垂直载荷下，基牙牙周膜的应力以压应力为主，应力集中在根尖；斜向载荷下，基牙牙周膜的应力主要是拉应力和压应力，应力集中在唇、舌颈缘；固定桥修复后，基牙牙周膜的应力和应变分布规律与修复前相似，但最大应力、应变值都明显增大；牙周膜内表面的应力大于牙周膜外表面；垂直载荷时，牙周膜内、外表面的应力差异更为显著。

Do not cross good times don't last long, as a result of oneself lazy, plus used group of hair tools, the factor that because the rank on Baidu is,gets manual control is more, the rank that goes up in Baidu so came down, before connecting 10 pages were done not have, oneself heart unplugs at that time cool unplug cool, that makes regret, but medicine of the what on the world has,those who sell is to did not regret medicine, such, oneself every day the hand moves newer website, the persistent catenary outside searching, through the effort of half month, rank on two pages afore came back again, what this ability makes him true became loose at a heat, oneself are true now not dare blindly use group of hair tools, I also offer a piece of advice now so because lazy, and use blindly-----Group the friend that sends a tool, I this is a the biggest lesson.

不过好景不长，由于自己的懒惰，再加上用了群发工具，因为百度上的排名是受人为控制的因素比较多，所以在百度上的排名一下就下来了，连前十页都没有了，当时自己的心就拔凉拔凉的，那个叫后悔，可是世上什么药都有卖的就是没有后悔药，就这样，自己又天天的手动更新网站，持续的找外链，经过半个月的努力，在前两页上排名又回来了，这才使自己真正的松了一口气，现在自己真不敢一味的使用群发工具，现在我也奉劝那么因为偷懒，而一味使用-----群发工具的朋友，我这是最大的一个教训。

So it is very important to make good decision before the project, and choose the location right, even to make good analysis so as to get the best scheme,which is a crucial problem to be responded and settled while many large real eatate corporation empolders the projects.

因此在项目开发前做好项目开发前期决策论证，选择起步区以及对起步区项目进行正确的产品定位和产品组合，做好项目投资分析并取得最优方案，对项目至关重要，是目前众多房地产开发企业在进行大型项目开发前应当首先回答好和解决好的极为重要的问题。

The chief fundraiser for disgraced former Illinois Governor Rod Blagojevich has died just days before he was due to start serving an eight-year sentence for corruption. 51-year-old Christopher Kelly was found in a lumber yard parking lot southwest of Chicago Friday. No word yet on the cause of death.

令前伊利诺伊州州长Rod Blagojevich蒙羞的最主要资金募集人在因贿赂罪面临接受八年刑期的前几天死亡。51岁的Christopher Kelly的尸体于周五在芝加哥西南部一个伐木场的停车场中被发现，死因不明。

At the same time, the finite staff element method is used to analyze the influence of beam rigidity; and the two new methods proposed are used to analyze the influence of connect way between piles and beam; and the conclusion is obtained that the rigidity ratio between beam and piles being 0.48 is appropriate; the continuative increase of the rigidity ratio is not significant; the worst condition is that connecting way between piles and beam is hinged; the best condition is that connecting way between piles and beam is rigid. Whether is single-row pile or are double-row piles, when the front of single-row pile or the front of the front-row pile(in the double-row piles) needed excavation, it is supposed to that ought to be carefulness to excavate, because it is that the engineering cost increased greatly.

同时，用有限杆单元法，对双排桩的连梁刚度和用文中提出的方法以桩梁连接方式进行了试验和理论分析得出如下结论：在满足不相互影响排桩间距的情况下，桩顶连梁与桩的刚度比不小于0.48是合适的，此时再增加连梁刚度无意义；桩梁连接为铰结时双排桩受力变形性质最差，刚结时受力变形性质最好；不论是单排桩还是双排桩，桩前和前排桩桩前土体需要开挖时应慎重，因为这种开挖对支护结构影响很大，造价增加很多；双排桩省钱，而且抵抗变形的能力强，值得在工程中研究和广泛应用

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。