The 46 ears classify into three groups on the basis of hearing threshold level,and classified into four groups on the basis of different disorders.Results The amplitude and reproducilbiity decreased as the hearing loss increased.

選擇經(jīng)耳鏡檢查a小视频在线网址、純音聽閾及聲導(dǎo)抗測(cè)試確診為中耳病變人人99，純音氣導(dǎo)聽閾不超過30 dB HL的46只病變耳及對(duì)照組正常28耳進(jìn)行TEOAE測(cè)試，病變46耳分別按不同聽閾水平及不同病變分組漂亮姑娘一级黄色，并對(duì)其結(jié)果進(jìn)行分析比較国产在线吧直达。

Results The average value of the hearing threshold was 70.67±20.43 dB HL in group A and 67.58±36.18 dB HL in group B(P＞0.05)before treatment.The average value of the hearing threahold reduced to 30.09±20.43 dB HL in group A and 18.42±18.05 dB HL in group B(P＜0.05) after treatment.

結(jié)果 治療前A組和B組的平均聽閾分別為70.67±20.43 dB HL和67.58±36.18 dB HL(P＞0.05)国产又黄又粗又爽又色的视频在线，治療后兩組聽力平均提高分別為30.09±20.43 dB和18.42±18.05 dB(P＜0.05)有什么国产免费黄色网站。

MethodsTwenty volunteers with normal hearing level and tympanic pressure were enrolled and kept at airtight container. The inner pressure was changed to 2 kPa and 4 kPa below normal atmospheric pressure in 50 s and recovered to the normal pressure, the pure tune hearing threshold of 500, 1 000 and 2 000 Hz and tympanic pressure were measured, and acoustic impedance curve characteristic and tympanic membrane appearance were recorded at each time points.

方法選取聽力和鼓室壓力正常的受試者20例，即單耳40耳国产综合九色免费，評(píng)估其于50s改變密閉模擬電梯容器壓力低于正常大氣壓2kPa欧洲美女A片在线观看、50s改變密閉容器壓力低于正常大氣壓4kPa、以及壓力恢復(fù)至正常水平時(shí)，言語頻率500国内日韩久久影院AV、1000偷拍综合、2000Hz的純音聽閾，鼓室壓值和聲阻抗曲線圖形形態(tài)欧美日韩另类精品重口综合手机，以及鼓膜形態(tài)在线视频福利第一网。

The study also evaluates the effects of FbAANC headset on speech intelligibility on a disyllabic Mandarin word discrimination test platform. We expect someone under the noisy environment in SNR equal 0,–5,–10,-15,-20 and –25 dB, the noise cancellation technique could either improve the speech discrimination effectively. Finally, the SNR below -10dB, the mean WDT score with FbAANC headset was superior to without FbAANC headset 13 to 32% through 30 subjects of normal hearing threshold for evaluation. These results suggest that the FbAANC headset would be useful for hearing protection in workplaces with high levels industrial noise.

同時(shí)，本論文亦透過華語雙字詞語音辨識(shí)力測(cè)驗(yàn)国产精品人成免费视频频，以評(píng)估此噪音消除技術(shù)對(duì)於語音理解力的影響欧美激情第一欧美精品完整，期望在SNR為0，-5“91在线”，-10特及毛片无码一区二区二三区，-15，-20和-25dB的環(huán)境下狼友视频在线一入口，暸解噪音消除技術(shù)能否有效提升語音辨識(shí)力jizzjizz路com；經(jīng)過30位正常聽力的受測(cè)者之評(píng)估，我們可以得到當(dāng)訊噪比在-10 dB以下時(shí)国产丰满老妇高潮，經(jīng)過噪音消除后的語音辨識(shí)力成績(jī)可明顯地提升13 to 32%毛片网站毛片，因此，本噪音消除耳機(jī)確實(shí)可以作為耳機(jī)防護(hù)以提供給工人對(duì)抗高分貝的工廠噪音日本黄色网站地址。

The average of hearing threshold shifts at high frequencies(4k, 6k, 8kHz) is considerably larger than that at low frequencies(0.5k, 1k, 2k Hz). The moderate to severe degree of hearing loss of the paper mill workplace of subjects showed maximum notches at the frequency of 4 kHz. The noise-exposure group grades of DNA damage were significantly higher then the controls.

經(jīng)扣除年齡老化因素所得到的聽力損失修正值操b福利视频，結(jié)果顯示在談話性低頻率0.5KHz、1 KHz中精品自拍偷拍视频，女性比男性聽力損失嚴(yán)重黄页网站在线观看高清免费，并以女性、≧50歲ww97在线观看、右耳亚洲综合操逼网、1 KHz 之平均值39.0±17.2dB為最高值，而於高頻率2KHz至8 KHz中日黄色网址，不同年齡層之比較2020黄色在线，以男性、≧50歲国产日韩欧美在线、右耳精品中的精品自拍、8KHz之平均值49.0±27.1dB為中度至重度聽力損失情形。

It is important that people using hearing aids continue to receive advice and support about assistive hearing devices after they receive their aids, to ensure that their specific needs are being met.

這是非常重要的人使用助聽器繼續(xù)接受咨詢和支持有關(guān)輔助聽覺裝置后全网在线观看黄色网站，他們收到他們的艾滋病一级a性色生活片久久毛片照片，以確保他們的具體需要得到滿足。

Objective To explore the prediction of bone-conduction of audiometric threshold in normal-hearing adults using multiple auditory steady-state response. Methods BC-ASSR and BC-A were recorded in 20 normal-hearing adults(10 males and 10 females). The response thresholds and the behavioral thresholds were compared at 0.5, 1.0, 2.0 and 4.0kHz to get the correlation and regression formulae.

目的 探討多頻聽性穩(wěn)態(tài)反應(yīng)評(píng)估聽力正常青年人骨導(dǎo)純音聽閾的可能性未满十八18禁止免费网址，旨在觀察聽力正常青年人骨導(dǎo)多頻聽覺穩(wěn)態(tài)反應(yīng)測(cè)試的正常值特點(diǎn)一级A片一级少妇片毛片，進(jìn)一步探討骨導(dǎo)ASSR的反應(yīng)閾與骨導(dǎo)純音聽閾的相關(guān)性精品视频国产狼友视频下载，為臨床上對(duì)不能配合做純音測(cè)聽的患者行聽力評(píng)估時(shí)提供客觀參考。

Objective: To discover the hearing disorder and its related factors in neonatus by evaluating the detective rate of distortion product otoacoustic emissions in hearing screening in Tanggu district of Tianjin.

目的：通過對(duì)天津市塘沽區(qū)新生兒先天性聽力障礙發(fā)病率的篩查免费成年人在线，了解新生兒聽力障礙及其相關(guān)因素国精品自拍现拍在线拍。

Objective:to probe the application on the hearing screening of the neonatus by transcience otoacoustic emission.methods: to undertakethe hearing screening of the neonatus by transcience otoacoustic emission of 2 100 neonatus from 2006.1~2006.12.results: 2 058 (98.4%) full-term newborn infants pass the transience otoacoustic emission once and 33(1.6%) full-term newborn infants can not pass it once.9(77.8%) premature infants pass the transience otoacoustic emission once and 2 premature infants can not pass it once.conclusion: the transience otoacoustic emission is worth to application because it has non-wound, fast, objective merit.

目的：探討觀察瞬態(tài)耳聲發(fā)射在新生兒聽力篩查中的應(yīng)用。方法：對(duì)2006年1月~2006年12月2 100例新生兒利用瞬態(tài)耳聲發(fā)射進(jìn)行聽力篩查的資料進(jìn)行分析日韩,国产黄色网站。結(jié)果：2 091例足月新生兒中麻豆国产原创视频，一次通過瞬態(tài)耳聲發(fā)射進(jìn)行聽力篩查 2 058例，占98.4%美女的胸又www又黄的视频无卡顿，未通過33例成年福利网，占1.6%，早產(chǎn)兒9例中99久久精品国产精油按摩店，一次通過檢測(cè)7例日韩手机色情网在线观看，占77.8%，未通過2例99国产网站，占22.2%情侣自拍网。全部未通過新生兒檢查abr，確診有異常15例亚洲另类小说，正常7例另类精品视频。結(jié)論：瞬態(tài)耳聲發(fā)射具有無創(chuàng)傷、快速视频二区自拍偷拍、客觀十八岁禁止入内黄色网站、敏感度高等優(yōu)點(diǎn)，值得在新生兒聽力篩查中廣泛推廣應(yīng)用94seav。

But a number of defects and deficiencies exist yet in our country"s present administrative hearing system compared to western countries, such as the lack of transparency, the nondependent legal status of the host, the ambiguity of record and the faultiness of the system itself, because it was not a long time since introduced from foreign countries. And how to use the western countries" experiences for reference and integrate our practicality is very significant, in order to develop and perfect our countrys administrative hearing.

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