半导体激光治疗偏头痛

头痛是临床上最常见的症状之一 ,头痛有很多种类型 ,引起头痛的原因也十分复杂。根据不同原因引起不同类型的头痛 ,临床治疗方法也不同 ,本文对采用半导体激光治疗机治疗的 5 7例偏头痛 (普通型 )患者进行了临床观察、分析及总结。临床资料　本组治疗的 5 7例患者均是门诊病人 ,其中男 2 6例 ,女 31例。年龄 2 1～ 5 2岁 ,平均为 38.7岁。病程最短为 9个月 ,最长为 5年 ,平均为 2年 5个月。根据对本组5 7例患者进行调查可知 ,患者偏头痛反复发作 ,以往每次发作持续时间约为 3～ 12天。间歇期自数天至半年不等。而病人一般都是在偏头痛发作 3…     

两种激光治疗腰椎退行性脊椎炎比较

Ｈｅ-Ｎｅ激光治疗组 5 1例 ,男 32例 ,女 19例 ,年龄 30～ 5 0岁 18例 ,5 1～ 6 0岁 17例 ,>6 0岁 16例 ;病程 <1个月 6例 ,1～ 3月 13例 ,4～ 6月 11例 ,>6个月 2 1例。半导体激光治疗组、4 9例 ,男 30例 ,女 19例 ;年龄 30～ 5 0岁 14例 ,5 1～ 6 0岁15例 ,>6 0岁 2 0例 ;疗     

CO2激光治疗阴道内宫颈口尖锐湿疣56例报告观察

1　临床资料我院从 1 994年 1月～ 1 999年 6月共治疗 56例病人 ,均为女性 ,年龄最小 1 7岁 ,最大 51岁 ,已婚 30例 ,未婚 2 6例。湿疣发病于阴道内及宫颈口 ,外阴部 34例 ,单纯发病于宫颈口尖锐湿疣 2 2例 ,多发者 34例 ,呈鸡冠状、菜花状 ,大小不等。全部病例均为女性 ,并均有非婚性交史 ,其中 1 2人伴发肛周尖锐湿疣 ,病程最长 4个月 ,最短 1 9天。2　治疗方法我们采用上海ＹＹＩＣ -ＬＡＣＯ2 激光及吉林ＪＣ -1 0 0Ｚ(Ｌ)型激光综合医疗机 ,输出功率 0～ 30Ｗ ,连续可调 ,波长 1 0 6μｍ ,焦点光斑直径 0 2ｍｍ ,连续输出原光束或聚…     

Nd:YAG激光治疗婴幼儿血管瘤410例

1985年10月～1988年4月,我们用YAG激光治疗各种血管瘤700余例,其中经复查、随访6～18个月,资料完整、能确定疗效的婴幼儿血管瘤410例、536个瘤体,取得了很好的效果。现分析报道如下: 临床资料性别:410例中,男113例、女297例。年龄:最小1月,最大3岁,其中1～6个月242例(59.02％),7～12个月139例(33.90％),1岁以上29例(7.07％)。     

He—Ne激光加超短波治疗麦粒肿

1　材料和方法1 1　临床资料47例患者中 ,男 18例 ,女 2 9例。年龄最大 6 0岁 ,最小 1岁多。病程最长 6个月 ,最短 1天 ,1月以上 11例 ,3天以下 12例 ,3天至 30天 2 4例。左眼 2 0例 ,右眼 2 3例 ,双眼 4例。1 2　治疗方法本组用Ｈｅ Ｎｅ激光加超短波治疗。Ｈｅ Ｎｅ激光治疗机波长为 6 32 8ｎｍ的Ｈｅ Ｎｅ激光机。输出功率 1～ 3ｍＷ ,光斑直径 1.5ｃｍ ,照射距离 5 0ｃｍ。患者取坐位。对外麦粒肿 ,闭眼后对准患处垂直照射 ;对内麦粒肿 ,在闭眼情况下翻开眼睑 ,暴露病灶 ,然后用消毒纱布浸生理盐水遮住眼球 ,再垂直照射病灶部位。每次…     

氦氖激光光针治疗跟骨骨刺引起疼痛40例

我院应用He—Ne激光光针治疗跟骨骨刺疼痛引起的行走、站立障碍;临床观察效果满意,现将资料完整的40例报告如下。一般资料本组40例中,男性10例,女性30例;年龄:40岁以下1例;41～50岁20例;51～60岁13例;61～70岁6例。本组41～50岁发病率较     

肩周炎的康复治疗

1 一般资料和方法 本组200例,其中男性75例,女性125例,年龄42-76岁;病程最短8天,最长18个月;治疗时间最短1个疗程,最长6个疗程. 1.1 电针局部选肩前、肩贞、肩廖、阿是穴常规针刺,远部循经取曲尺、外关、合谷、后溪、条口等穴;加TDP灯照射,每日一次,20-30分钟/次.     

老年患者的心理特征探讨

1　临床资料我们对 1 0 0例老年患者 :其中 ,男 75例 ,女 2 5例 ,年龄均在 60岁以上 ,住院时间最长 6个月 ,最短 1 4天 ,均治愈或好转出院。我们按调查内容拟定统一的测试量表 ,根据受试者的问答进行填写 ,内容包括患者的一般状况 ,心理特征。共发出表格 1 0 0份 ,收回 1 0 0份 ,经审核有效率1 0 0 %。3　结果3 1　一般状况 (表 1 )表 1　 10 0例老年患者一般情况年龄性别文化程度职业男女文盲小学中学以上农民工人职员离退休干部6 0～ 3 0 510 2 0 5813 6 870～ 2 5151713 10 13 116 9>80 1510 15556 10 4 63 2　心理特征 (表 2 )表 2…     

低能量He-Ne激光血管内照射治疗脑梗塞的疗效对照观察

1　资料与方法1 1　一般资料　我院从 1996年～ 1999年进行血管内照射治疗脑梗塞共 10 4例 ,其中男性 6 0例 ,女性 44例 ,最大年龄 85岁 ,最小年龄 40岁 ,平均 6 2 5岁。对照组 10 9例 ,其中男性 6 7例 ,女性 42例 ,最大年龄 79岁。最小年龄 49岁 ,平均 6 4岁。治疗前以改良爱丁堡与斯堪的那维亚研究组标准评定患者临床神经功能缺损程度。轻型 (0～ 15分 ) ,中型 (16～ 30分 ) ,重型 (31～ 45分 )。照射组轻型 2 1例 ,中型 6 8例 ,重型 15例。对照组轻型 2 6例 ,中型 70例 ,重型 13例。两组经统计学处理有显著性差异 (Ｐ >0 0 5 )。2　治…     

CO2激光治疗30例宫颈糜烂疗效观察

1　临床验证及一般资料30例患者大多数均出现白带增多、粘稠或者稀薄如蛋清 ,或者黄脓样 ,或呈血性分泌物。常有腹部疼痛 ,下腹部胀 ,每月月经或排便及性交时甚痛。年龄最大 4 3岁 ,最小 2 3岁 ,30岁以下 2 4人 ,30岁以上 6人。病程最长 4年 ,最短半年 ,从年龄统计 30岁以下发病率较高 ,病程越长糜烂程度越重 ,根据 30例宫颈糜烂的程度和范围按临床分度分型见下表 :人数分度糜烂范围人数分型糜烂程度8Ⅰ° 1厘米 2 6单纯型糜烂面表浅光滑14Ⅱ° 1～ 2厘米 2乳头状型粗糙有乳头状8Ⅲ° 2厘米以上 2混合型两者皆有2　治疗方法患者取膀胱结石位…     

Monoclonal antibodies ICO-02 to blast cell antigens in patients with chronic myeloleukemia in blast crisis

Mice were immunized with blood cells of a patient with chronic granulocytic leukemia, and their cells were subsequently used for the preparation of hybridoma ICO-02. This hybridoma is continuously producing monoclonal antibodies which reacted with cells in 4 out of 13 patients with blastic crisis of chronic granulocytic leukemia and in 6 out of 38 patients with acute lymphoblastic leukemia. Antibodies reacted with blast cells in 2 out of 3 patients with undifferentiated blastic crisis of chronic myelocytic leukemia and in 2 out of 5 patients with lymphoid variant of blastic crisis of chronic granulocytic leukemia. Cells of 6 patients with acute lymphoblastic leukemia which reacted with the monoclonal antibodies had immunological markers of T lymphocytes bone-marrow precursors. Monoclonal antibodies did not react with cells of blood and bone marrow from healthy people and from patients with chronic lymphocytic leukemia, acute myeloblastic leukemia, acute myelomonocytic leukemia, acute monoblastic leukemia and lymphosarcoma.     

ICO-10 monoclonal antibodies to the Thy-1 antigen

Mouse monoclonal antibodies (MAB) ICO-10 to Thy-1 antigen were obtained. MAB ICO-10 reacted in indirect immunofluorescence test with 5.7 +/- 0.8% human thymocytes. Antibodies did not react with granulocytes, monocytes, T- and non-T cells from peripheral blood, and with marrow cells of healthy donors. MAB ICO-10 reacted with blast cells from 25 of 53 patients with T-cell acute lymphoblastic leukemia (ALL), from 2 of 5 patients with B-cell ALL. This antigen was absent on blood and marrow cells from some patients with ALL, 80 patients with chronic lymphoid leukemia, 54 patients with chronic granulocytic leukemia at the stage of blastic crisis, 128 patients with acute nonlymphoblastic leukemia. Antibodies are specifically bound to thymocytes and spleen cells of Thy 1.1 and Thy 1.2 mice. MAB ICO-10 detect Thy-1 antigen expressed on human hematopoietic cells. MAB ICO-10 may be applied for human leukemia and lymphoma immune diagnosis.     

Isolated-utterance speech recognition using hidden Markov modelswith bounded state durations

Hidden Markov models (HMMs) with bounded state durations (HMM/BSD) are proposed to explicitly model the state durations of HMMs and more accurately consider the temporal structures existing in speech signals in a simple, direct, but effective way. A series of experiments have been conducted for speaker dependent applications using 408 highly confusing first-tone Mandarin syllables as the example vocabulary. It was found that in the discrete case the recognition rate of HMM/BSD (78.5%) is 9.0%, 6.3%, and 1.9% higher than the conventional HMMs and HMMs with Poisson and gamma distribution state durations, respectively. In the continuous case (partitioned Gaussian mixture modeling), the recognition rates of HMM/BSD (88.3% with 1 mixture, 88.8% with 3 mixtures, and 89.4% with 5 mixtures) are 6.3%, 5.0%, and 5.5% higher than those of the conventional HMMs, and 5.9% (with 1 mixture), 3.9% (with 3 mixtures) and 3.1% (with 1 mixture), 1.8% (with 3 mixtures) higher than HMMs with Poisson and gamma distributed state durations, respectively     

Experiments on transverse mode locking of circular cylindrical optical beams and certain flat beams

Transverse mode locking of the Laguerre forms with proper magnitudes and phases in an optical beam with circular cylindrical symmetry can produce a beam with time-varying spot size and intensity. The effect is demonstrated by locking two modes of the cylindrically symmetric set, TEM00qand TEM10qof an He-Ne 6328-Å laser with relative amplitudes 1 and 0.6, respectively. Verification of the time-varying spot was by sampling of the beam with an iris moved about the beam at constant radius. The shape and phase of the detected pulses agreed with predictions for the mode-locked beam. For a flat strip beam, the rectangular TEM00q, TEM20q, and TEM40qmodes were locked with relative amplitudes 1, 0.5, and 0.3, respectively. A beam with time-varying width resulted and was sampled with a slit.     

基于分解和超平面拟合的进化超多目标优化降维算法

目标降维是研究超多目标优化问题的一个重要方向,它通过恰当的算法设计,能够剔除一些对求解优化问题冗余的目标,达到极大简化优化问题的效果。在超多目标优化降维问题中,前沿界面呈现非线性的情形是最普遍也是最难处理的降维问题。该文提出一种基于分解和超平面拟合的算法(DHA)来处理这类目标降维问题,通过对进化过程中种群的有效分解,使得在几何上非线性分布的非劣解集近似分解为多个近似线性分布的子集,再用系数是稀疏的超平面结合一些扰动项去拟合这些非劣解子集,最后根据该超平面提取出原问题的本质目标集,达到去除冗余目标的效果。为了检验提出算法的有效性,采用DTLZ5(I, m), WFG3(I, m)和MAOP(I, m)作为测试问题集,与代表当今水平的著名算法进行比较。计算机仿真结果表明该文提出的算法无论前沿界面是线性或非线性的情形都具有优异的性能。     

不同地形激光雷达数据点云的信息提取方法

针对不同地形点云数据采用不同的滤波和格网插值方法提取地面信息,得到了良好的滤波插值效果,为后续地表下沉盆地获取等工作提供了优质的基础数据。对于不同的点云数据,文中分别进行了针对性的处理。对地表平坦且植被稀少的点云数据,采取高程最低点采样并替代格网高程值的方法;对地物和植被杂乱的点云数据,采用基于先验高程信息滤波与Kriging格网插值相结合的方法;而对于地形起伏较大的点云数据则采用渐点加密TIN滤波与Kriging格网插值相结合的方法,最终得到高质量的基础数据并应用于工程实际。     

发射极空气桥InGaP/GaAs HBT的DC和RF特性分析

为抑制电流增益崩塌,提高HBT的热稳定性,研制了发射极空气桥互连结构的HBT晶体管,应用ICCAP提取参数建立VBIC模型,结合模型参数对三种不同结构HBT的DC和RF特性进行比较分析.与引线爬坡互连结构相比,发射极空气桥互连结构HBT的热阻得到改善,热稳定性提高;与发射极电阻镇流方式相比,发射极空气桥HBT的截止频率(fT)相同,最大振荡频率(fmax)提高,最大稳定功率增益(MSG)高出约5dB.     

A New Solution for Simple Cooperative Relaying

In this paper we present a new simple cooperative relaying scheme. The proposed scheme is compared with simple cooperative schemes with virtual orthogonal space time block coding (OSTBC) and quasi orthogonal space time block coding (QOSTBC). Every of these three schemes includes one base station with two antennas, two relay stations each with a single antenna and one mobile station with a single antenna. The aim of the proposed scheme is to preserve, as much as it is possible bit error rate (BER) performance of the cooperative scheme with virtual OSTBC, but with increased code rate. It is shown that the presented scheme obviously outperforms simple cooperative scheme with virtual QOSTBC, while in comparison with simple cooperative scheme with virtual OSTBC has very similar BER performance and increased code rate.     

Switching frequency imposition and ripple reduction in DTC drivesby using a multilevel converter

A new strategy for direct torque control with imposed switching frequency (DiCoIF) is proposed. This strategy was specially designed to operate with a multicell (flying capacitors) inverter with any number of levels, which means it can also be used for standard two-level inverters. This approach combines the well known advantages of the multicell. inverter with those of a direct torque controlled (DTC) based strategy. It is shown that the multicell topology presents enough degrees of freedom to control both torque and flux with very low ripple and high dynamics on one hand, and to impose the switching frequency and the capacitors voltage balance on the other hand. Experimental and simulation results, obtained with a standard two-level inverter and with a four-level multicell inverter, are presented and discussed. Finally, a comparative analysis either with the classical DTC and field oriented techniques is carried out     

QPSO与K-Medoids相结合的带障碍空间聚类新算法

分析了现有的带障碍约束空间聚类算法,针对基于PSO优化的带障碍约束的K-Me足,提出了QPSO与K-Medoids算法结合的带障碍空间聚类新算法(QKSCO).在带障碍约束的空间条件下,该算法依据蚁群格网障碍距离作为聚类依据,引入了QPSO的快速全局收敛的特性,使之与K-Medoids算法的局部收敛特性相得益彰.实验结...