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Chain-grate bed temperature field is a large inertial, nonlinear and time delays controlled system.Its math model is not easy to figure out.Three Fuzzy-PID controllers are presented in this paper based on the dynamic character of fuzzy control and the static character of PID control.They are simulated via combining fuzzy logic toolbox with Simulink.The simulation result shows that they have better characters both in dynamic and static than general PID controller.At the same time, they have better robustness...

链篦机篦床温度场是大惯量、非线性、纯滞后的系统,其数学模型具有较大的不确定性;为实现其精确控制,结合模糊控制和PID控制各自在动态响应和稳态精度上的优势,提出了三种模糊PID控制器;利用Matlab的模糊工具箱和Simulink对三种控制器和常规PID控制进行了仿真比较;仿真结果表明,三种模糊PID控制器与常规PID控制相比具有良好的控制品质和较好的适应性。

Regarding (6) type, when tradition Time variable t is two spatial vectors (+ psi 1i) and (- psi 2j) Crossed products v also is not 0, it (x1, x2, x3) differs 90 compared to on speed with the three-dimensional space in the space by the pure imaginary number attribute, I=e^I pi, therefore it Number space has in the physical property with the dot product constitution the difference, because Crossed products psi 1i (X psi 2j extremely small visible it is equal to zero under the conventional speed, but is very big in the object movement speed time, Crossed products psi 1i (X psi 2j in the physical quantity and for the quantum mechanics in may not to the easy quantity, its space and the conventional space is different, the performance is intrinsic or the interior space If the definition vector (+ psi 1i) and (- psi 2j) the dot product constitutes the three-dimensional space (x1, x2, x3) is exterior space, but the three-dimensional space which (+ psi 1i) and (- psi 2j) Crossed products constitutes by the vector is the internal space, contrasts its component

对于⑥式,传统时间量t为两个空间矢量(+ψ1i)与(-ψ2j)的叉积比上速度v且不为0,其与三维空间(x1,x2,x3)在空间上相差90度以纯虚数表征,I=e^Iπ,故其与点积构成的实空间有物理性质上的不同,因为在常规速率下叉积ψ1i(Xψ2j非常小可视其等于零,而在物体运动速率很大时,叉积ψ1i(Xψ2j之中物理量与则为量子力学中的不可对易量,其空间与常规空间不同,表现为一个内在或内部性空间。若定义矢量(+ψ1i)与(-ψ2j)点积所构成的三维空间(x1,x2,x3)为外部空间,而由矢量(+ψ1i)与(-ψ2j)叉积而构成的三维空间为内部空间,对比其分量

In Xinxiang Aera of Henan Province in 1997, the occurrence of cotton pests were investigated in the Bt cotton and common cotton fields The result showed that the numbers of cotton bollworm egg were similarly in both fields, but that of survival larvae on Bt cotton were lower than that on common cotton The occurrence of cotton aphis was no difference but the spider mite were more heavy in Bt cotton field At the same time,control strategy against cotton pests were discussed for the Bt cotton

对河南新乡棉区种植的转Bt基因棉和常规棉棉田虫情进行了定点系统调查和大田普查,结果表明:棉铃虫在两种棉田棉花上的落卵量无明显差别,而幼虫存量差异显著,Bt棉棉花上幼虫存量显著降低;Bt棉对棉蚜的发生无明显的影响,而Bt棉上棉红蜘蛛的发生比常规棉略重,同时初步研究制定出种植Bt棉后的棉虫综防对策

Comparing with conventional air handling process, the liquid desiccant air-conditioning system can dehumidify air without cooling down to its dew point. Meanwhile, counteraction cooling and heating can be avoided, which usually happened in conventional air handling process and led to huge energy waste. In addition, during the air handling process no condensation water separates out of the air in the liquid desiccant air-conditioning system, thus, avoid fungi thrives in moist environment of traditional air handling process. Not only being applied in dehumidification process in summer, the system can also realize humidification process in winter conditions efficiently.

与传统的空气处理方式相比,采用溶液式空气处理方式,具有如下优越性:取消了冷凝水表面,消除了霉菌等生长所需的潮湿环境;既可以对空气除湿处理,又能实现冬季对于空气的加湿处理过程;可方便调节处理后的相对湿度,不再是常规冷凝除湿方式中接近100%相对湿度的出口空气参数;避免了常规空调系统冷凝除湿后温度过低还需再热带来的冷热抵消问题;可以充分利用低品位能源如太阳能和废热实现溶液再生,节省系统电耗。

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

Compared to the traditional power,the wind power can be taken as widely-distributed,clean and sustainable energy which gets rid of the dependence on nonrenewable fossil energy and defuses the fuel cost risk of normal power so as to ensure the cost stability of power generation,which basically solves the environmental cost of discharge of sulfur,dust and carbon caused by the normal power.

与传统能源相比,风能作为一种在全球范围内广泛分布的清洁、永续能源,其有效利用不仅可以摆脱对不可再生的化石能源的依赖,化解常规电力的燃料价格风险,保证发电成本的稳定,而且可以从根本上解决常规能源发电所带来的硫、粉尘、碳排放等环境成本问题。

Based on the analysis of the features of the general Fuzzy Controller implement ed by look-at table,this paper presents a new method,multiple fuzzy controller m ethod,to improve the control accuracy of the general fuzzy controller.

在深入分析查表方式的常规模糊控制器的性能的基础上,提出一种新颖的多重模糊控制器方法来提高查表方式的常规模糊控制器的控制精度,并给出了仿真结果。

During the fracturing for low pressure and low permeability gas reservoirs, there are some main problems in conventional hydroxypropylguar - organic boron cross-linking system: Firstly, the water-lock damage to low pressure and low permeability gas formations by filter liquor; Secondly, the reason for alkali-sensitive damage in alkali-sensitive reservoirs is that conventional hydroxypropylguar - organic boron cross-linking fracturing fluids were cross-linked under alkaline environment, while the permeability of reservoirs is reduced greatly; Thirdly, the formation pressure is low, and the energy of flow back is not enough, at present, the main measure in oil fields is "injecting with liquid nitrogen", but this technique increased the cost of fracturing, making great troubles in operating, and leaving the liquid nitrogen also is a big problem.

在低压低渗透气藏的压裂改造过程中,常规羟丙基胍胶-有机硼交联压裂液体系存在的主要问题,一是压裂液滤液对低压低渗透气层造成的水锁损害;二是常规羟丙基胍胶-有机硼压裂液是在碱性条件下交联的,对碱敏性储层造成碱敏损害,降低储层渗流能力;三是地层压力低,压裂液返排能量不足,当前各油田采取的措施主要是&液氮伴注&技术,但是&液氮伴注&技术增加了压裂的费用,而且液氮存放也存在较大问题。

The effect of iner- tia weight factor on performance of PSO is discussed.The results show that the particle swarm optimiza- tion algorithm with nonlinear inertia weight factor is suitable to solve multivariahle optimum design prob- lem...

结果表明,带动态非线性惯性因子的微粒群算法对求解多变量的干燥优化设计问题具有方法简单、所需微粒群规模小、收敛速度快等特点;采用部分废气循环并进行优化设计对干燥系统的节能具有十分重要的意义,对湿空气出口温度和废气循环比进行优化设计,其年总费用比无废气循环的常规设计节省18.2%,比循环比为0.2时的常规设计节省12.6%。

Each basic unit should have a sign pair, sign-pair of general basic unit , the line-core insulation is blue-white, red-white is conventional color; sign-pair of the sign basic unit ,the core line insulation is red-white, and the conventional color is blue~white , and around with red CV tape, and the others around with non-red CV tape.

每个基本单位中应有一个标志对,普通基本单位标志对的线芯绝缘为兰~白,常规为红~白;标志基本单位标志对的线芯绝缘为红~白,常规为兰~白。标志基本单位疏绕红色的 CV 扎带,其余单位基本疏绕非红色的 CV 扎带。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。