可靠度

A reliable and cheaper instrument used for measuring the Baume degree of black liquor is presented in this paper.

根据黑液波美度软测量模型，阐述了利用软测量技术检测黑液波美度的方法，提出了一种性能可靠、较为廉价的仪表设计方案，详细介绍了黑液波美度软测量仪表的硬件和软件研发以及在实际应用中的操作方法

Run smooth, safe and reliable: the motor shaft and pump shaft for coaxial Direct, high concentricity, run smooth, safe and reliable.

运行平稳，安全可靠：电机轴和水泵轴为同轴直联、同心度高，运行平稳，安全可靠。

The high quality managerial talent, the extreme responsible enterprise staffs and the excellent poster paper product printing processing craft enable this company always to have the good enterprise credit and the profession prestige, guarantees the quality,the service customer is our objective, is driving force which the enterprise survival and depends on develops This company has the adva-nced paper printing processing mechanical device, depends on the Shenzhen paper product printing industry home leading sup-eriority,this company customer spreads the home, far fords the ocean other shore We are engaged in the poster paper product manufacture,directly roduct examination discipline, had guaranteed our overwhelming majority customer stabilizes and turning head rate This company has the multiwraps to use the South Korean part paper cup to take shape the production line The mon-thly output 10 million poster paper cups,5,000 papers cups are especially few subscribe the custom make, is quickest in five days to deliver The complete paper cup product selects the high quality A level reed paper manufacture (completely primary thick liquid, does not contain recycling paper pulp is the A level), the albedo Degree of hardness ultra is good Guaranteed by the reli-able stable quality that, good postsale follows up to ser-ve becomes China to move, the Chinese telecommunicati-on, China Uni-com, the communications bank, the construction bank, the agricultural bank, the brilliant bank, china merchants bank, ten thousand branches real estates,China is the technology, the Shenzhen aviation, China is safe and so on the wellkno-wn big enterprise's long-term stable partner.

高素质的管理人才，极端负责任的企业员工和精良的广告纸制品印刷加工工艺使本公司一向拥有良好的企业信用和行业声誉，保证质量，服务客户是我们的宗旨，是企业生存和赖以发展的原动力。本公司拥有先进的纸品印刷加工机械设备，依托深圳纸制品印刷业的国内领先优势，本公司客户遍及国内，远涉大洋彼岸。我们从事广告纸制品制造，直接关系客户的品牌推广，我们拥有宁可报费一万，不能放过一个的极端负责任的产品检验纪律，保证了我们绝大多数客户的稳定和回头率。本公司拥有多套采用韩国部件纸杯成型生产系线。和国内知名高档超白度芦苇淋膜纸生产企业一直保持比较良好的合作关系，保证了本公司生产原材料的稳定供给。五千只纸杯特少起订定做，最快五天内交货。全部纸杯产品选用优质A级芦苇纸制造(全部原生浆，不含回收纸浆为A级)，白度挺度超好。以可靠稳定的质量保证，良好的售后跟进服务成为中国移动，中国电信，中国联通，交通银行，建设银行，农业银行，光大银行，招商银行，万科地产，华为技术，深圳航空，中国平安等知名大企业的长期稳定合作伙伴。

The high quality managerial talent, the extreme responsible enterprise staffs and the excellent poster paper product printing processing craft enable this company always to have the good enterprise credit and the profession prestige, guarantees the quality,the service customer is our objective, is driving force which the enterprise survival and depends on develops This company has the adva-nced paper printing processing mechanical device, depends on the Shenzhen paper product printing industry home leading sup-eriority,this company customer spreads the home, far fords the ocean other shore We are engaged in the poster paper product manufacture,directly roduct examination discipline, had guaranteed our overwhelming majority customer stabilizes and turning head rate This company has the multiwraps to use the South Korean part paper cup to take shape the production line The mon-thly output 10 million poster paper cups,5,000 papers cups are especially few subscribe the custom make, is quickest in five days to deliver The complete paper cup product selects the high quality A level reed paper manufacture (completely primary thick liquid, does not contain recycling paper pulp is the A level), the albedo Degree of hardness ultra is good Guaranteed by the reli-able stable quality that, good postsale follows up to serve becomes China to move, the Chinese telecommunicati-on, China Uni-com, the communications bank, the construction bank, the agricultural bank, the brilliant bank, china merchants bank, ten thousand branches real estates,China is the technology, the Shenzhen aviation, China is safe and so on the wellkno-wn big enterprise's long-term stable partner.

高素质的管理人才，极端负责任的企业员工和精良的广告纸制品印刷加工工艺使本公司一向拥有良好的企业信用和行业声誉，保证质量，服务客户是我们的宗旨，是企业生存和赖以发展的原动力。本公司拥有先进的纸品印刷加工机械设备，依托深圳纸制品印刷业的国内领先优势，本公司客户遍及国内，远涉大洋彼岸。我们从事广告纸制品制造，直接关系客户的品牌推广，我们拥有宁可报费一万，不能放过一个的极端负责任的产品检验纪律，保证了我们绝大多数客户的稳定和回头率。本公司拥有多套采用韩国部件纸杯成型生产系线。和国内知名高档超白度芦苇淋膜纸生产企业一直保持比较良好的合作关系，保证了本公司生产原材料的稳定供给。五千只纸杯特少起订定做，最快五天内交货。全部纸杯产品选用优质A级芦苇纸制造(全部原生浆，不含回收纸浆为A级)，白度挺度超好。以可靠稳定的质量保证，良好的售后跟进服务成为中国移动，中国电信，中国联通，交通银行，建设银行，农业银行，光大银行，招商银行，万科地产，华为技术，深圳航空，中国平安等知名大企业的长期稳定合作伙伴。

The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.

理论分析和试验研究表明： 1球轴承振动是钢球—滚道接触副中的各种摩擦学作用引起的，具有摩擦动力学的本质，任何对接触副的摩擦学特性有影响的因素都将对球轴承的振动和噪声特性产生影响； 2中心轴向载荷作用下，载荷增大使球轴承的固有振动频率升高，载荷越大同样的载荷增幅引起的频率升幅减小，足够大的中心轴向载荷作用下载荷的变化对球轴承振动的频率特性不会产生明显的影响； 3轴向和径向联合载荷作用下，径向载荷不大时球轴承振动的固有频率基本不变，但是可能引起变刚度激励的非线性振动，出现新的频峰，过大的径向载荷将使部分钢球脱离接触，使球轴承的振动和噪声呈现不稳定状态； 4润滑对球轴承的振动和噪声特性有重要的影响，良好的润滑对振动有明显的抑制作用，润滑不充分时，振动和噪声的水平会有明显增高，一定条件下还会激发接触副中的谐振，发出啸声，造成接触表面的伤害，无润滑干接触时，短时的运转就会损伤接触副表面，使振动和噪声迅速增大，并随时可能引发严重的磨损和卡滞失效；接触副润滑良好时，油膜的"刚化效应"使球轴承振动的固有频率有所提高，润滑剂中含有弥散性污浊时，振动的幅度总体升高，但弥散性污浊不会改变球轴承振动的频率特性；浙江大学博士学位论文：球轴承振动的研究 5低速时，球轴承振动的基本特征呈现不稳定状态，随着转速的提高，球轴承振动的频率特性趋于稳定，固有频率频峰升高； 6理论分析表明，干接触时钢球和滚道表面波纹度的某些谐波分量能激励球轴承的振动，振动的幅值与谐波幅值成正比，实际球轴承中钢球的分布不可能完全均匀，波纹度的激励作用会随时发生；润滑接触的分析表明，波纹度的任意谐波分量均能激励球轴承的振动； 7球轴承的几何和结构参数分析表明，球轴承尺寸越大，径向、轴向和角振动的固有频率越低；钢球中心圆直径增大，球轴承的径向和轴向振动的固有频率基本不变，角振动的固有频率有所上升，振动的幅频特性基本不变；径向游隙加大使球轴承的径向振动固有频率降低，轴向和角振动的固有频率有所升高，径向振动幅频特性的幅值升高，而轴向和角向降低；钢球的数量增多使球轴承振动的固有频率上升，幅频特性的幅值下降，径向振动的幅值下降最为明显；外圈沟曲率半径系数增大使球轴承径向振动的固有频率升高，轴向和角振动的固有频率降低，径向幅频特性基本不变，轴向和角向幅频特性幅值升高；内圈沟曲率半径系数增大使径向、轴向和角振动固有频率均下降，振动幅频特性的幅值均有升高； 8试验对比表明，传感器采用探针式安装时，由于探针接触副接触特性的影响，钡(量得到的球轴承振动信号有失真，采用专门设计和制作的试验球轴承，以固定式安装加速度计，首次测量得到了球轴承振动的真实信号，通过对振动信号的分析，验证了球轴承振动的理论模型； 9)基于时间序列分析的AR模型适用于大样本球轴承振动信号的分析，以样本长度的均方根值作定阶上界，FPE做判阶准则，给出的AR谱光滑，频率分辨率高，是球轴承振动分析的简便而可靠的手段； 10以时频域分析的小波包变换分析球轴承异音信号能够比较好地定位和聚焦异音发生的时间，时间间隔，频率范围，同样是球轴承振动分析的可靠的手段，可用作球轴承故障诊断技术。

To provide credible data for empirical model,a method of calculating the weighted average gray value of compartment area was designed in this paper.It worked especially when the compartment area was as large as pixel.The GeoTIFF form was adopted as the RS data type.The Matlab software was used to read and store RS image.The pixel was divided into smaller units to calculate the area of spackle in each pixel by counting the amount of the units.

：为了给遥感反演模型提供可靠数据，该文设计了一种按面积加权计算不规则图斑遥感影像灰度值的方法，特别是当图斑面积接近像元大小的时候；遥感数据采用被广泛支持的GeoTIFF格式，使用Matlab将遥感影像的灰度信息及元数据读取并存入数据库中；通过将像元分解成更小的单元，统计各像元在图斑内小单元的个数，计算图斑在各像元所占的面积，按照面积加权的方式计算得到图斑的平均灰度值。

After the Dempster-Shafer theory, the DSmT and the neutrosophic theory have been introduced, the multi-source information fusion based on belief assignment has been analyzed in this paper from different points of view, such as the quantitative information fusion and qualitative information fusion, the equally reliable information fusion and inequally reliable information fusion. To extend the fusion technology, the quantitative/qualitative neutrosophic belief assignment and combination rules have been proposed following the connection of DST, DSmT and neutrosophic theory.

本文在对DST(Dempster-Shafer Theory)理论、DSmT理论和中智理论进行了介绍后，从定量信息融合和定性信息融合，等可靠信息融合和非等可靠信息融合等多个角度，对基于信度理论的多源信息融合技术进行了分析，并将信度赋值理论与中智理论相结合，提出了定量中智信度和定性中智信度的表示方法以及组合规则，进一步扩展了信度赋值技术。

And then we do many experiments about using different fineness of unblended coal and coal blending to coking,and get some results of the effects of coal fineness on coke strength to provide a reliable reference for coking production.

根据我厂一、二炼焦用煤的细度不一，焦炭质量有明显的差别，进行了单种煤和配合煤不同细度的炼焦试验，了解不同细度煤对焦炭强度的影响，为炼焦生产提供可靠的参考依据。

The new method is more suitable for describing travel time reliabilities in urban area where traffic conditions vary frequently.

该研究方法对于描述交通条件变化比较频繁的城市交通环境的行程时间可靠度有较强的适应性。

This paper study nonlinear dynamic reliabilities of anti-wind and anti-seismic steel braced frames of tall buildings.

本文研究高层建筑带支撑钢框架结构抗风抗震的非线性可靠度问题。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。