Given a planar point set,the moving least squaremethod is adopted to denoise and resample it so that the resulting point set is with low noise and uniform sampling density.Then the reliable signed distance field of the preprocessed point set is constructed by using the Level Set method.Finally,an algebraic B-spline function is adopted to fit the signed distance field by solving a linear equation system.

首先給定一個(gè)表示封閉曲線(xiàn)、可能帶有噪音且分布不均勻的平面點(diǎn)云亚洲另类图区，采用移動(dòng)最小平方(moving least square清风阁免费视频网站A片，簡(jiǎn)稱(chēng)MLS)方法對(duì)點(diǎn)云去噪亚洲第一区第二区在线、重采樣久久va中文字幕影视，得到一個(gè)低噪音、分布均勻的"線(xiàn)狀"點(diǎn)云色色香蕉色色色，再通過(guò)Level Set方法建立該"線(xiàn)狀"點(diǎn)云的離散幾何距離場(chǎng)毛片a视频，最后用一個(gè)代數(shù)B-樣條函數(shù)光順擬合該離散距離場(chǎng)，代數(shù)函數(shù)的零點(diǎn)集即為重建曲線(xiàn)欧美色爱区。

Generally, the cross flow fan operating noise totally about 55 dB, but in the midnight when prominent frequency noise has become extremely annoying. This research attempted to different axial configurative tongue designed to improve penetrating single frequency noise of cross-flow fan.

一般而言国产免费污网站在线观看，橫流扇的運(yùn)轉(zhuǎn)噪音約55dB左右并不算大，但是在夜深人靜時(shí)某些特別突出的單頻噪音卻顯得極度惱人，因此本研究嘗試以不同之軸向舌端構(gòu)形設(shè)計(jì)來(lái)改善橫流扇之尖銳單頻噪音精品射射射福利一区；并將錄制之聲音以音質(zhì)參數(shù)分析不卡av在线免费观看，找出較佳的舌端與葉輪扭轉(zhuǎn)角度搭配。

Has the scientist to do the experiment: When noise intensity when 90 decibels, in retina's rod cell difference radiance's sensitivity starts to drop, distinguishes the time which the weak light responded also to lengthen; When noise when 95 decibels, some 2/5 person mydriasis; When the noise amounts to 115 decibels, the eye reduces 20% to the radiance compatibility.

有科學(xué)家做過(guò)實(shí)驗(yàn)：當(dāng)噪音強(qiáng)度在90分貝時(shí)亚洲国产一区二区三区青草影视，視網(wǎng)膜中的視桿細(xì)胞區(qū)別光亮度的敏感性開(kāi)始下降欧美激情偷乱人伦小说专区，識(shí)別弱光反應(yīng)的時(shí)間也延長(zhǎng)；當(dāng)噪音在95分貝時(shí)鸥美色精品在线播放，有五分之二的人瞳孔放大又污又黄又爽的网站；當(dāng)噪音達(dá)到115分貝時(shí)，眼睛對(duì)光亮度的適應(yīng)性降低20%成年人在线观看。

Broadly speaking, any form of unwelcome sound is noise pollution, whether it is the roar of a ...

進(jìn)一步加強(qiáng)有關(guān)噪音污染的宣傳人人妻人人干，讓全社會(huì)重視噪音污染的危害，減少噪音污染對(duì)人類(lèi)健康的影響在线免费免费观观看看的黄色视频。

The triboelectric effect is also called "handling noise" because it occurs when handling poorly made cables.

當(dāng)觸摸那些制作質(zhì)量不高的電纜時(shí)人人插人人透人人射人人色人人干，會(huì)產(chǎn)生摩擦電效應(yīng)噪音，因此這些噪音又被稱(chēng)為"觸摸噪音"色黄视频污。

ANC is an effective way to attenuate noise that is very difficult and expensive to control using other passive means. In order to reduce the noise around the exhauster and incubator, this project studied an ANC system using embedded signal processing technique.

為了降低廚房抽油煙機(jī)的運(yùn)轉(zhuǎn)噪音與讓保溫箱內(nèi)早產(chǎn)兒有寧?kù)o的環(huán)境国产一在线精品自产拍，本計(jì)畫(huà)研究應(yīng)用嵌入式信號(hào)處理技術(shù)進(jìn)行主動(dòng)式噪音防治以抑制噪音。

This research main of research the content aim at the system noise of the orbit conveyance namely it become grind to judge because of carrying on, and through analysis valuation, the draw-up derails the prevention and cure counterplan of orbit noise, and to part prevention and cure the result measurement of counterplan do an initial analysis ratio to, distinguish a counterplan and become because of theoretically and the result ratio on the actual situation to with provide the best project of noise prevention and cure.

本研究主要的研究?jī)?nèi)容即針對(duì)軌道運(yùn)輸系統(tǒng)噪音之成因進(jìn)行研判亚洲精品你懂的在线播放，并經(jīng)分析評(píng)估欧美老妇逼，擬定出軌軌道噪音的防治對(duì)策，并對(duì)部分防治對(duì)策的結(jié)果量測(cè)做一初步分析比對(duì)免费观看黄色网站一区二区，厘清對(duì)策與成因在理論上及實(shí)務(wù)上之成效比對(duì)美国一级做受，以提供噪音防治之最佳方案。

Ceramic bearings can produce oxidation-ho, silicon carbide, silicon nitride and so on, diameter from 3mm-50mm, precision Machinable P0, P6, P5 level; its performance characteristics are: high temperature, oil-free self-lubricating, acid, alkali and salt corrosion , wear resistance, low noise, insulating diamagnetic, since high-speed operation; metal nano-ceramic bearing its production process for a new generation of high content of nano-particles in the heat and pressure infiltration of metal surface is activated to fill the cracks and pits the metal so that 3-5 micron metal surface is more smooth solid surface, greatly reduce the friction, improve Chennai base metals, and greatly increased the life span of bearings, and its characteristics are: long life (as an ordinary stainless steel bearings 2 -- 10-fold), low noise (as an ordinary stainless steel bearings, 70%), wear-resisting, acid, alkali, salt corrosion, high temperature, load large; ceramic bearing and metal nano-ceramic bearing design and development to meet the needs of the market for high-speed, low - noise, high load, the demand for corrosion-resistant; Machinery Production Department to produce aircraft rod end joint bearing, linear guide bearings, the fuel tank of earrings, plastic bearing, non-standard side bearing components, glass door hardware, such as high-precision control products; and provide CNC machining.

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This is the noise and accommodate more intense because she will immediately and babies, such injury ear-piercing noises heard every day, she would really be afraid of the noise caused by their own babies to be born.

而郭女士更是對(duì)這種噪音深?lèi)和唇^深夜女人18毛片A级毛片免费，因?yàn)樗R上就要生小寶寶了，這種尖利刺耳的噪音天天不絕于耳99riav在线一区，她真怕這些噪音會(huì)對(duì)自己即將出生的小寶寶造成影響A片看片资源。

The noise improvement need synthesizes the establishment of index sign, is the influence factor which brings orbit noise to meeting to make a study first, again collect an actual measurement data application to return to seven modes of returning the orbit noise of the way establishment, part 2 then makes use of the way of expert's questionnaire, applying the technique of Delphi-AHP, begging to take seven powers of noise factors

經(jīng)由數(shù)據(jù)的匯整分析，由各路段所呈現(xiàn)噪音改善需求綜合指標(biāo)欧美视频一区二区视频在线，可以判斷噪音改善的需求強(qiáng)度亚洲一级免费网址，尤其是波狀磨耗的改善，依此噪音改善的需求強(qiáng)度便可排定磨軌的順序及時(shí)機(jī)亚洲色图一区二区。