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- The hearing threshold shifts for humans and guinea pigs were observed after exposure for 2 hours to a 105-dBA broadband noise. 本文观察了在105dBA 的宽带噪声下暴露2h,人和脉鼠的听阈偏移。
- Researchers found that more than 12% of the children had hearing damage known as noise-induced hearing threshold shifts, or NITS. 研究发现，超过12%25的儿童存在噪音性听力下降。
- hearing threshold shift 听阈变动
- The remaining hearing loss after the exposure that does not fully recover to its preexposure level is known as permanent threshold shift (PTS). 听性脑干反应则分别在噪音暴露前、暴露后、暴露后1天、暴露后2天、或暴露后7天施行。
- Method:Fifteen of young men with normal hearing were exposed to 4 kHz short-term pure tone (Level ~ 130 dB SPL) for 3 minutes to analysis the change of DPOAE in details after Temporary Threshold Shift (TTS). 方法：用 130dB SPL的 4 kHz纯音对 15例听力正常人（30耳）进行 3 min的短时暴露，造成听力暂时性阈移后，用ILO－90耳声发射仪记录、分析暂时性阈移（TTS）时DPOAE的幅值、时间序列的特征，并与纯音暴露前进行对比。
- Aim: To observe the combined effects of four physical factors(noise, lighting, temperature and humidity) on temporary threshold shift (TTS). 目的:观察舰艇舱室环境噪声、照明、温度、湿度4种物理因素联合作用对暂时性听阈偏移的影响。
- NIHL can be divided into temporary threshold shift (TTS) and permanent threshold shift (PTS). The TTS can soon recover if we break away from noise exposure. 噪声性听力损失分为暂时性阈移(Temporary threshold shift，TTS)和永久性阈移(Permanent threshold shift，PTS)。
- Objective To investigate the effects of shock wave exposure on hearing threshold and hair cells injury of guinea pigs. 目的探讨急性缺氧对冲击波暴露后豚鼠听功能和听毛细胞损伤的影响。
- Eustachian tube function was disturbed in 48.3% cases, tympanogram was abnormal in 42.0% cases, and air hearing threshold was increased in 33.9% cases. 慢性鼻窦炎患者咽鼓管功能异常 48.;3%25;鼓室导抗图异常 42
- Pure tone hearing threshold can be conferred by examining the threshold of ASSR and by using the definite numeral values. 利用这一差值 ,通过测试ASSR阈值可推断出被检查者纯音听阈的阈值
- In the 4th week, compared with that in animals accepting GM, ABR threshold shift was notable in animals accepting GM and L-Arg ( P < 0.05), but it was diminished in group GM and L-NMMA ( P < 0.05). 实验第 4周 ;GM加L -Arg组ABR反应阈升高明显 ;与GM组比较有统计学意义 (P<0 .;0 5 );GM加L -NMMA组ABR反应阈升高较少;与GM组比较有统计学意义 (P <0
- Method: The bone conductive hearing threshold was tested in 168 CSOM ears of 135 cases and 66 healthy ears of 66 patients with unilateral otitis as controls. 方法：测量135例（168耳）CSOM患者的骨导听阈，并以66例单侧患者的健耳为对照，比较不同类型、不同病程的CSOM的骨导听阈。
- The noise-reducing effects of the cotton-yarn earplugs was evaluated by comparing the hearing threshold value of ear before and after the earplug wearing among 30 noise-free workers. 本文以非噪声作业青年30名为受试者,佩戴棉纱耳塞,用真耳阈值法作60耳的棉纱耳塞隔声值评价。
- noise induced permanent threshold shift 噪声性永久性阈移
- OBJECTIVE To find the best way to evaluate the hearing threshold with the objectivethresholds of auditory brainstem response(ABR) and 40Hz auditory event related potential(40Hz AERP) . 目的探索应用听性脑干反应(auditory brain stem response,ABR)和40Hz听觉相关电位(40Hz auditory event related potential,40Hz AERP)来客观评估听阈的最佳方法。
- noise induced temporary threshold shift 噪声性暂时性阈移
- After RT, 8.9-28.8% of ears had at least a 10 dB loss in bone conduction threshold at speech frequency, which was defined as an average of hearing threshold at 0.5 kHz, 1 kHz, and 2 kHz, while the percentage was 18-34.2% at 4 kHz. 在追踪期间共有8.;9-28
- noise-induced temporary threshold shift 噪声导致暂时性听阈改普变, 噪声性暂时性阈移
- A new method, the wavelet based neural network method is presented to estimate hearing threshold from BAEP signal.The results of test show that this method has high performance in low SNR. 本文提出了一种新的听阈检测方法:基于小波变换的神经网络检测方法。
- noise-induced permanent threshold shift 噪声导致永久性听阈改变, 噪声性永久性阈移
