In this paper, we first analyzed cloud drift wind(CDW) data distribution in the vertical direction, and then reassigned the height of every CDW in the research domain in terms of background information, and finally, c...In this paper, we first analyzed cloud drift wind(CDW) data distribution in the vertical direction, and then reassigned the height of every CDW in the research domain in terms of background information, and finally, conducted contrast numerical experiments of assimilating the CDW data before and after reassignment to examine the impacts on the forecast of the track of Typhoon Chanthu(1003) from 00:00(Coordinated Universal Time) 21 July to 00:00 UTC23 July, 2010. The analysis results of the CDW data indicate that the number of CDWs is mainly distributed in the midand upper-troposphere above 500 h Pa, with the maximum number at about 300 h Pa. The height reassigning method mentioned in this work may update the height effectively, and the CDW data are distributed reasonably and no obvious contradiction occurs in the horizontal direction after height reassignment. After assimilating the height-reassigned CDW data, especially the water vapor CDW data, the initial wind field around Typhoon Chanthu(1003) became more reasonable, and then the steering current leading the typhoon to move to the correct location became stronger. As a result, the numerical track predictions are improved.展开更多
A group of 39 Transgender subjects, 17 Female to Male (FtM) and 22 Male to Female (MtF), have been evaluated about their sexual desire, activity, and satisfaction during the period before and after Sex Reassignment by...A group of 39 Transgender subjects, 17 Female to Male (FtM) and 22 Male to Female (MtF), have been evaluated about their sexual desire, activity, and satisfaction during the period before and after Sex Reassignment by Surgery (SRS). Visual Analogue Scale from 0 to 10 has been used to assess sexual desire and satisfaction, number of sexual partners and number of sexual intercourses/ month have been evaluated to assess sexual activity. Moreover, after the surgery, the Sexual Desire Inventory-2 (SDI-2) was administered to patients and related to testosterone (total or free) levels. In FtM, after hysterectomy and bilateral ovariectomy, mean value of sexual desire (VAS 0 - 10) was 7.5 before beginning testosterone therapy, this value increased after six months of therapy and after one year. Just before SRS the value decreased, but increased to 8.42 after SRS. In the same patients the values (VAS 0 - 10) on sexual satisfaction were respectively 6.5, 6.9, 7.1, 6.5 and 7. Mean number of partners was 4, with 7.07 mean frequency of sexual intercourse/month, before starting therapy (after hysterectomy). During hormonal therapy (testosterone), No. of partners was 2.46 and 8.96 intercourses/month, while after SRS the partners were 1.25 and intercouses/month 7.91. MtF patients reported a sexual desire (VAS 0 - 10) before therapy of 7, this remained almost constant after 6 months, decreases after 12 months and just before surgery, and finally increased to 7.76 after SRS. For sexual satisfaction mean values of VAS were respectively: 6.1, 6.2, 6.3, 6, and 6.8. Regarding sexual activity, MtF report 3.81 mean No. of partners and 9.27 intercouses/month before the beginning of hormonal therapy, 1.36 partners and 4.36 intercourses after therapy, and 1.3 partners and 4.54 intercourses after SRS.展开更多
We present a case of a transsexual patient who underwent a partial pelvectomy and genital reconstruction for anal cancer after chemoradiation. This is the first case in literature reporting on the occurrence of anal c...We present a case of a transsexual patient who underwent a partial pelvectomy and genital reconstruction for anal cancer after chemoradiation. This is the first case in literature reporting on the occurrence of anal cancer after male-to-female sex reassignment surgery. We describe the surgical approach presenting our technique to avoid postoperative complications and preserve the sexual reassignment.展开更多
针对多重同步挤压变换及其改进算法存在的未重排点问题,提出了一种基于最大系数的多重同步挤压变换(maximum coefficient based multi-synchrosqueezing transform,简称MCMSST)方法来识别时变结构非平稳响应信号的瞬时频率(instantaneou...针对多重同步挤压变换及其改进算法存在的未重排点问题,提出了一种基于最大系数的多重同步挤压变换(maximum coefficient based multi-synchrosqueezing transform,简称MCMSST)方法来识别时变结构非平稳响应信号的瞬时频率(instantaneous frequency,简称IF)。首先,引入傅里叶频谱来辅助多分量响应信号选取截止频率;其次,对响应信号进行短时傅里叶变换(short time fourier transform,简称STFT),针对短时傅里叶变换系数求取针对时间的偏导,从而获得估算的瞬时频率;然后,在对瞬时频率的估算值进行多次迭代的基础上,仅保留时频系数模值最大处所对应的估算瞬时频率,并将其余位置的瞬时频率值归零;最后,对时频系数模值最大处所对应的瞬时频率进行时频重排即可得到细化后的瞬时频带。由于基于MCMSST方法提取的是瞬时频带,故采用时频系数模极大值法在限定的频带范围内提取瞬时频率曲线。通过2组数值算例和1个铝合金悬臂梁质量突变试验,验证了所提方法的有效性。研究结果表明,MCMSST方法不仅彻底解决了未重排点问题,而且提高了瞬时频率的识别精度和抗噪能力。展开更多
针对现有方法难以有效检测多分量雷达辐射源信号(multi-component emitter signal,MCES)的问题,提出一种SHE(S-metbod,Hough-transform and elimination-method)检测新方法。该方法引入S-method计算信号的时频分布,采用Hough变换检测调...针对现有方法难以有效检测多分量雷达辐射源信号(multi-component emitter signal,MCES)的问题,提出一种SHE(S-metbod,Hough-transform and elimination-method)检测新方法。该方法引入S-method计算信号的时频分布,采用Hough变换检测调频斜率,通过提出的时频面消除法实现信号分量的逐次提取和参数检测。SHE方法计算复杂度低,容噪能力强,易实现在线检测。仿真实验结果表明:SHE方法能准确检测MCES中各信号分量起止时间和瞬时频率,不易受交叉项干扰,脉宽检测精度大于98.030%,带宽检测精度大于96.430%,信噪比降低到-5 dB时仍然保持高检测精度。展开更多
基金Specialized Science Project for Public Welfare Industries(Metrological Sector)(GYHY201206010,GYHY201406009)Science and Technology Planning Project for Guangdong Province(2012A061400012)+3 种基金Program for the 12th Five-Year Economic Development(2012BAC22B00)Natural Science Foundation of China(41075083)Program for Integration and Application of Key Meteorological Techniques from CMA(CMAGJ2012M36)Project from Guangdong Meteorological Bureau(2013A04)
文摘In this paper, we first analyzed cloud drift wind(CDW) data distribution in the vertical direction, and then reassigned the height of every CDW in the research domain in terms of background information, and finally, conducted contrast numerical experiments of assimilating the CDW data before and after reassignment to examine the impacts on the forecast of the track of Typhoon Chanthu(1003) from 00:00(Coordinated Universal Time) 21 July to 00:00 UTC23 July, 2010. The analysis results of the CDW data indicate that the number of CDWs is mainly distributed in the midand upper-troposphere above 500 h Pa, with the maximum number at about 300 h Pa. The height reassigning method mentioned in this work may update the height effectively, and the CDW data are distributed reasonably and no obvious contradiction occurs in the horizontal direction after height reassignment. After assimilating the height-reassigned CDW data, especially the water vapor CDW data, the initial wind field around Typhoon Chanthu(1003) became more reasonable, and then the steering current leading the typhoon to move to the correct location became stronger. As a result, the numerical track predictions are improved.
文摘A group of 39 Transgender subjects, 17 Female to Male (FtM) and 22 Male to Female (MtF), have been evaluated about their sexual desire, activity, and satisfaction during the period before and after Sex Reassignment by Surgery (SRS). Visual Analogue Scale from 0 to 10 has been used to assess sexual desire and satisfaction, number of sexual partners and number of sexual intercourses/ month have been evaluated to assess sexual activity. Moreover, after the surgery, the Sexual Desire Inventory-2 (SDI-2) was administered to patients and related to testosterone (total or free) levels. In FtM, after hysterectomy and bilateral ovariectomy, mean value of sexual desire (VAS 0 - 10) was 7.5 before beginning testosterone therapy, this value increased after six months of therapy and after one year. Just before SRS the value decreased, but increased to 8.42 after SRS. In the same patients the values (VAS 0 - 10) on sexual satisfaction were respectively 6.5, 6.9, 7.1, 6.5 and 7. Mean number of partners was 4, with 7.07 mean frequency of sexual intercourse/month, before starting therapy (after hysterectomy). During hormonal therapy (testosterone), No. of partners was 2.46 and 8.96 intercourses/month, while after SRS the partners were 1.25 and intercouses/month 7.91. MtF patients reported a sexual desire (VAS 0 - 10) before therapy of 7, this remained almost constant after 6 months, decreases after 12 months and just before surgery, and finally increased to 7.76 after SRS. For sexual satisfaction mean values of VAS were respectively: 6.1, 6.2, 6.3, 6, and 6.8. Regarding sexual activity, MtF report 3.81 mean No. of partners and 9.27 intercouses/month before the beginning of hormonal therapy, 1.36 partners and 4.36 intercourses after therapy, and 1.3 partners and 4.54 intercourses after SRS.
文摘We present a case of a transsexual patient who underwent a partial pelvectomy and genital reconstruction for anal cancer after chemoradiation. This is the first case in literature reporting on the occurrence of anal cancer after male-to-female sex reassignment surgery. We describe the surgical approach presenting our technique to avoid postoperative complications and preserve the sexual reassignment.
文摘针对多重同步挤压变换及其改进算法存在的未重排点问题,提出了一种基于最大系数的多重同步挤压变换(maximum coefficient based multi-synchrosqueezing transform,简称MCMSST)方法来识别时变结构非平稳响应信号的瞬时频率(instantaneous frequency,简称IF)。首先,引入傅里叶频谱来辅助多分量响应信号选取截止频率;其次,对响应信号进行短时傅里叶变换(short time fourier transform,简称STFT),针对短时傅里叶变换系数求取针对时间的偏导,从而获得估算的瞬时频率;然后,在对瞬时频率的估算值进行多次迭代的基础上,仅保留时频系数模值最大处所对应的估算瞬时频率,并将其余位置的瞬时频率值归零;最后,对时频系数模值最大处所对应的瞬时频率进行时频重排即可得到细化后的瞬时频带。由于基于MCMSST方法提取的是瞬时频带,故采用时频系数模极大值法在限定的频带范围内提取瞬时频率曲线。通过2组数值算例和1个铝合金悬臂梁质量突变试验,验证了所提方法的有效性。研究结果表明,MCMSST方法不仅彻底解决了未重排点问题,而且提高了瞬时频率的识别精度和抗噪能力。
