查询词典 abnormal condition

The appraisal and the finding of current mill condition , the forecasting of conditiontrend ,fault diagnosis 、maintenance strategy arithmetic and decision-making deducingprocess.To enhance software function of equipment management information system, mill condition-based maintenance software aided system is developed,it can save mill condition data into equipment information management platform,through mill software module to analysis sequenced detection data and automaticly give the appraisal of current mill condition , the forecasting of condition trend ,fault diagnosis,maintenance strategy and decision-making suggestion for mill technician as a reference to decide whether tostart mill condition-based maintenance.

在燃煤电厂既有的设备点检和大小修管理信息系统软件平台的基础上，进一步开发磨煤机的状态检修软件支持系统模块，能存储磨煤机的状态点检数据入设备信息管理平台，通过磨煤机状态检修软件支持系统模块对一段时间内的磨煤机点检数据进行处理从而给出磨煤机当前状态的分析与评价，磨煤机状态趋势的预测，磨煤机的故障分析、故障原因查找和解决措施，将最终的维修决策建议提供给磨煤机的专业技术维修人员和管理决策者参考，结合软件分析和人工经验的干预以决定是否开始磨煤机的状态检修。

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。

As for 60 patients with MV, 45 suffered from motion sckness; 20 were sensitive to motion; 32 had photophobia and phonophobia; 45 had migraine ; 16 had abnormal ocular motion function; 3 had abnormal cerebral MRI and 40 had abnormal results in high stimulating rate ABR.

结果：64例PCIV患者，血压异常29例；血脂或血糖异常14例；血管超声异常37例；突然起身眼前发黑或头晕14例；高刺激ABR异常22例；4例头颅MRI异常。60例MV患者，运动病45例，运动敏感20例，畏光或畏声32例，偏头痛45例，眼动异常16例，MRI异常3例，高刺激ABR异常40例。

Abnormal chromosome was detected in 17 fetuses. Among them, trisome 21, trisome 18, trisome 13, Turner syndrome, Klinefelter syndrome, short arm deletion of chromosome 18, and inverted chromosome 9 were detected in 8, 3, 1, 1, 1, and 2 fetuses, respectively. Abnormal chromosome was found in 5 out of 8 fetuses who received serum screening. Ultrasound showed abnormal chromosome in 11 fetuses.

共诊断17例胎儿染色体异常，其中21三体8例，18三体3例，13三体1例， 1 Turner综合征1例，Klinefelter综合征1例， 18染色体短臂微缺失1例，9号染色体臂间倒位2例(1例来源于母亲)。17例中有8例进行了唐氏儿血清学筛查，5例异常，11例超声检查胎儿有结构异常。

Results Sixty of 68 (88.24%) patients had the other sites infection prior to the occurrence of VE. The clinical manifestations were as follows: fever (60 cases, 100%), vomitting (48, 70.59%), headache (41, 60.29%), headache associated with abdominal pain (20, 29.41%), convulsion (23, 33.82%), continuous twitch (5, 7.35%), coma (3, 4.41%), mental symptoms (40, 58.82%), disturbance of consciousness (19, 27.94%), meningeal irritation syndromes associated with morbid indication (32, 47.06%), acroparalysis (3, 4.41%), aphasia (1, 1.47%); 48 patients (70.59%) had abnormal CSF, 50 (73.53%) had abnormal electroencephalogram and 8 of 36 had abnormal CT scanning.

结果 68例患儿中有60例(88.24%)病前有其他部位感染；其临床表现：均有发热，呕吐48例(70.59%)，头痛41例(60.29%)，头痛伴腹痛20例(29.41%)，惊厥23例(33.82%)，抽搐持续状态5例(7.35%)，昏迷3例(4.41%)，精神症状40例(58.82%)，意识障碍19例(27.94%)，合并脑膜刺激征和病理征32例(47.06%)，肢体瘫痪3例(4.41%)，失语1例(1.47%)；脑脊液检查异常48例(70.59%)，脑电图异常50例(73.53%)，36例头颅CT平扫异常8例。

Results There were about 20 or so abnormal manifestations after stroke and swallowing organs dysfunction include abnormal lip closure, decreased tongue motility, weakness of palate, decreased or disappeared gag reflex, abnormal lift of larynx and insufficient opening of cricopharyngeal muscle.

临床检查所明确的吞咽器官异常包括唇闭合无力、舌运动减弱、软腭麻痹、咽反射减弱或消失、喉上抬异常或消失、环咽肌打开不全的敏感度及阴性预测值普遍较高，敏感度、特异度、阳性、阴性预测值最好的临床指标分别是唇闭合无力（84.62％），环咽肌打开不全（80.96％），舌运动减弱（67.75％），唇闭合无力（90.91％）。

The normal and abnormal embryoid were distinguished by the rate of normal plantlets induced and the regeneration modes of the cottons varieties were compared to two ways, one with the highest rate of normal inducement was the normal way of regeneration plantlet from callus, embryogenetic callus, global embryoid, heart-shape embryoid, torpedo-shape embryoid, cotyledon embryoid to normal plantlet, etc, the other with the lowest rate of normal inducement was the abnormal way from callus, embryoid callus, global embryoid-like, heart-shape embryoid-like, fish torpedo-shape embryoid-like, cotyledon embryoid-like, abnormal plantlet to normal plantlet, etc.

转化后采用平行实验得到不同品种的不同培养体系的愈伤组织、胚性愈伤组织、胚状体、类胚状体、畸形苗和正常苗，以最终正常苗诱导率高的体系的材料作为正常苗的发生过程，以诱导率低的作为畸形苗的发生过程，即分为正常苗的发生过程，愈伤组织——球型胚状体——心型胚状体——鱼雷型胚状体阶段——子叶型胚状体——正常苗：畸形茁的发生过程，愈伤组织——类球型胚状体——类心型胚状体——类鱼雷型胚状体阶段——类子叶型胚状体——畸形苗。

Globin chain analysis proved the α chain to be abnormal The fingerprint of the abnormal α chain and the amino acid sequence of the abnormal peptide obtained indicated that the α 34 leucyl residue had been replaced by arginyl...

将异常α链经柱层析分离纯化后作指纹图，把指纹图的异常肽斑洗脱，用微量双偶合法作氨基酸顺序测定，发现异常肽斑为α34亮氨酸被精氨酸取代，由此证实此异常血红蛋白为Hb Queensα_2~(34Leu→Argβ_2。

Abstract］ objective to discuss ultrasound diagnosis on fetal abnormal.methods we examined 1 231 example pregnant women carried on the prenatal with ultrasonography and the color ultrasonography.results picked out the fetal abnormal 9 examples,in which anencephaly were 2 examples,the hydrocephalus 3 examples,the meningocele 1 example,the endocardial cushion defects 1 example,the ectopiacordis accompanied grastroschisis 1 example,the cleftlip 1 example.all patients were confirmed through induced labor.conclusion fetal abnormal ultrasonography image is typical,the careful inspection correct analysis can discover promptly,ultrasonography is the first method to inspect the fetalabnormal,may achieve the prompt discovery,prompt termination of pregnancy item.

目的 探讨超声检查对胎儿畸形的诊断价值。方法对1231例孕妇进行产前超声检查。结果检出胎儿畸形9例，其中无脑畸形2例，脑积水3例，脑膜膨出1例，心内膜垫缺损1例，心脏外翻并腹壁大缺损1例，唇裂1例。所有患者均经引产后证实。结论胎儿畸形的声像图比较典型，细心检查正确分析能及时发现，超声是检查胎儿畸形的首选方法，可达到及时发现及时终止妊娠的目的。

Special staining methods, such as Masson and the Van Gieson staining were used to study the distribution of collogen fibers and elastic fibers. ResultsBy HE staining, the subepithelial connective tissues and vessels in the pterygium were more prominent than normal conjunctival tissues. An amorphous subepithelial superficial hyalinized zone and coarse eosinophilic granular materials were observed in the pterygia, but they were not found in normal conjunctival specimens. Coarse fibers were visible only in the deeper subepithelial connective tissues of pterygial samples. With Masson′s staining, the dense staining of collagen fibers was also more prominent in the pterygium than in the subepithelial connective tissues of normal conjunctiva. Abnormal collagen fibers were visible in the deeper sub-epithelial connective tissues of pterygial samples. With Van Gieson staining, abnormal collagen fibers were visible in the deeper subepithelial connective tissues. Dark coarse elastic fibers were found in the abnormal fibers only in the subepithelial deep connective tissues of pinguecula in the pterygia but not in the conjunctiva. With immunohistochemistry staining, MMP-3 was strong in the pterygial epithelium, moderate in fibroblast and absent from pterygial vascular walls. LN was strongly expressed in the blood vessel wall, moderately in the epithelial basement membrane and absent from the entire stroma.

结果HE染色：翼状胬肉组织上皮下基质中存在结缔组织的增生和血管形成；基质浅层存在一无定形物质透明区及粗糙的颗粒样嗜酸性物质，在翼状胬肉体部深层基质中存在粗糙的纤维组织；正常球结膜组织细胞排列整齐；基质为疏松结缔组织，胶原纤维平行排列，其间可见成纤维细胞，散在少量中性粒细胞、毛细血管；Masson染色：翼状胬肉浅层基质中存在致密的胶原纤维染色，深层基质中的胶原纤维存在变性样改变；VG染色：翼状胬肉组织深层基质中存在大量变性的胶原纤维，其间夹杂黑色的弹性纤维；免疫组化染色法：MMP-3在翼状胬肉上皮细胞中呈强表达，成纤维细胞中呈中等强度表达，血管内皮细胞中未见表达；LN在血管壁中呈强表达，在上皮细胞基底膜中呈中等强度表达，在整个基质中未见明显表达；col Ⅲ在整个翼状胬肉基质中呈强表达。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。