【正文】 s Pink Revolution, an annual campaign that seeks to raise awareness and funds for breast cancer research, the hotel recently announced. A major sponsor of the campaign for three years in a row, Conrad Macao has pledged to donate a portion of its proceeds to the fund, includ ing those collected from selling its popular bear and rubber duck merchandise, in limited pink editions. Pink is the theme for floral arrangements and decorations in the hotel in October. In addition, on Fridays that month, members of the management and staff will add something pink to their uniforms, regular s and handwritten guest cards. Breast cancer is the most prevalent type of cancer among women in Hong Kong and is also of significant concern in Macao and around the world, regardless of age, general manager Bede Barry said in a statement. The hotel has enlisted the support of a number of international and local celebrities to help drive the cause, including South Korean actor Jung Suk Won. This year, a lucky guest who stays at the hotel during the campaign and also donates money for the cause will win a necklace specially designed by Arte Madrid, a Spanish jewelry brand. Women should strive to balance quality of work and life, and have children at a young age. As a doctor I see much suffering because of this imbalance. Xiao Ying, 36, works for a large law firm. Her job means lots of travel, a heavy caseload and a large number of meetings, so her schedule is hectic. She has been pregnant twice, but had abortions on both occasions because she felt her busy, highpressure career wasn39。ll wear a mask, or just ignore the smog and go on jogging, she said. For those who are not so athletic, jogging also has its attractions. Wu Houbin started roughly two years ago, when he was severely obese. Within two months, his weight dropped from 82 kilograms to 64 kilograms. The success helped him recover health, and he has made friends. Jogging does not require speed, but stamina. If you want to stick to the game, you need to take it as a mission, a habit, and then eventually a hobby, Wu said. But persevering with jogging is not always easy. Jogging is beneficial for heartlung function, and the skeletal system, but doctors say improper technique damages the joints, especially the knees and ankles. Excessive jogging wears down the body, and harms one39。s smoggy days. If the smog is severe, I39。s behaviors to care for eyes, basedon the timely and factual statistics the survey series of followup events will also be held in six cities, including Jinan in Shandongprovince, and Changsha in Hunan province, to educate people on how to care for eyes afterthe survey started. More and more Chinese are jogging to get and stay fit. Most joggers will run alone, but some will jog with friends or even coaches. The Beijing Olympic Forest Park is one of the most popular spots. It is packed with runners in the afternoon, usually after work, and at weekends. Jogging after a whole day39。s annual National Day for Eye Care, the China Youth Development ServiceCenter and Zhejiang Medicine, a leading listed Chinese pharmaceutical pany, jointlyannounced the kickoff of the about one month, a questionnaire piled by top eye care medical experts in China willbe distributed through multiple online partners, including , as well asthrough offline survey events held in universities, middle schools and primary schools acrossthe report will be released based on the survey statistics and analysis, and most importantly,guidelines for parents and youth on how to care for the eyes and prevent myopia — agrowing problem in China39。 總之，在東莞這片熱土上，我學(xué)到了很多的東西，更學(xué)會(huì)了如何做人，如何與人相處，如何更好地去適應(yīng)社會(huì) ，更加明白了有些事沒(méi)有經(jīng)歷過(guò)永遠(yuǎn)都不會(huì)懂，一開(kāi)始我看到我這個(gè)畢業(yè)設(shè)計(jì)的題目以為很簡(jiǎn)單，但動(dòng)起手真正做起來(lái)卻并沒(méi)那么簡(jiǎn)單，天下沒(méi)有免費(fèi)的午餐，不勞而獲的思想是不切實(shí)際的，我們應(yīng)該腳踏實(shí)地，一步一步地向前走 。 這次設(shè)計(jì)主要都是用一些基本元器件組成的，不用軟件編程，硬件看起來(lái)不是很多東西，但整個(gè)設(shè)計(jì)的難點(diǎn)和重點(diǎn)就在調(diào)試那一塊，設(shè)計(jì)的最終效果與調(diào)試密不可分，還有就是電路的焊接，焊接的好壞也會(huì)直接影響到設(shè)計(jì)的效果， 所以焊接的時(shí)候除了要有技術(shù)外，還要求更多的耐心和細(xì)心，從而這也鍛煉了我的電路分析能力。此外這個(gè)電路設(shè)計(jì)了一分鐘的報(bào)警延時(shí)，不然報(bào)警器感應(yīng)到有人就只響一下，離開(kāi)后就立刻不響了，可能警衛(wèi)人員還沒(méi)來(lái)得及發(fā)覺(jué)小偷就溜走了，通過(guò)接一個(gè)電阻和電容，使報(bào)警時(shí)間延時(shí)一分鐘，達(dá)到了報(bào)警的效果 ，改變電阻和電容的值可以改變延時(shí)的時(shí)間 。 在 實(shí)際的 調(diào)試過(guò)程中，發(fā)現(xiàn)可調(diào)電位器那部分的電路調(diào)不了，這樣好難使這個(gè)電路起到真正的報(bào)警作用，一開(kāi)始我以為是電位器壞了，也更換了幾次，但還是老問(wèn)題，經(jīng)過(guò)長(zhǎng)時(shí)間的分析發(fā)現(xiàn)那部分電路的一個(gè)二極管用錯(cuò)了，那里應(yīng)該用一個(gè)穩(wěn)壓管的，把電源出來(lái)的電壓穩(wěn)定在一個(gè)數(shù)值，然后再通過(guò)可調(diào)電位器調(diào)節(jié)那個(gè)基準(zhǔn)電壓，傳感器感應(yīng)到微弱的信號(hào)放大后輸送到電壓比較器的反相端，用示波器看下這個(gè) 電壓大概多大，然后把正相端的基準(zhǔn)電壓調(diào)正確，一般比感應(yīng)到時(shí)的信號(hào)小一點(diǎn)，這樣感應(yīng)到有信號(hào)的話，輸出端就輸出一個(gè)低電平，經(jīng)過(guò)后級(jí)電路處理使報(bào)警器報(bào)警。可是事實(shí)上并不是想象中那么簡(jiǎn)單，雖然模擬電子技術(shù)好沒(méi)那么容易做得到單片機(jī)那種效果，比如閃光燈，音調(diào)，報(bào)警次數(shù)顯示等，但模電的難點(diǎn)就在調(diào)試，稍微對(duì)這方面有所了解的人都知道模電這東西有時(shí)候好難調(diào)的，不像單片機(jī)那樣易于控制，所以我焊接完電路后的主要工作就是調(diào)試 。 我知道，畢業(yè)不是終點(diǎn)，前方的路還很長(zhǎng)。 我 曾多次參加學(xué)校和學(xué)院組織的活動(dòng)，開(kāi)拓了自己的視野，超越自我，在老師和同學(xué)中得到了好評(píng)和充分的肯定。 大學(xué)是象牙塔，也是一個(gè)小社會(huì)，大學(xué)幾年的風(fēng)風(fēng)雨雨塑造了我的人生觀和世界觀。18V； 消耗電流小， Icc=； 輸入失調(diào)電壓小， VIO=177。 工作電源電壓范圍寬，單電源、雙電源均可工作，單電源： 2～ 36V，雙電源 :177。 LM393 系列可直接與 TTL 及 CMOS 邏輯電路接口。該產(chǎn)品也可采用分離式電源，低電耗不受電源電壓值影響。 15V) 低功耗電流，適合于電池供電 低輸入偏流 低輸入失調(diào)電壓和失調(diào)電流 共模輸入電壓范圍寬，包括接 地 差模輸入電壓范圍寬，等于電源電壓范圍 輸出電壓擺幅大（ 0 至 ) 電氣特性 輸入偏置電流 45mA 輸入失調(diào)電流 50mA 輸入失調(diào)電壓 輸入共模電壓最大值 VCC~ V 共模抑制比 80dB 電源抑制比 100dB 8 腳 :電源 VCC 4 腳 :接地 7 腳：輸出端 5 腳：同相輸入端 6 腳：反相輸入端 17 芯片 二 ： LM393 芯片概述 LM393 為雙電壓比較器， LM393 系列由兩個(gè)偏移電壓指標(biāo)低達(dá) 的獨(dú)立精密電壓比較器構(gòu)成。 16 圖 16 LM358 引腳圖 芯片特點(diǎn) 內(nèi)部頻率補(bǔ)償 直流電壓增益高 (約 100dB) 單位增益頻帶寬 (約 1MHz) 電源電壓范圍寬：?jiǎn)坞娫?(3— 30V)；雙電源 (177。 芯片一： LM358 芯片概述 LM358 內(nèi)部包括有兩個(gè)獨(dú)立的、高增益、內(nèi)部頻率補(bǔ)償?shù)碾p運(yùn)算放大器，適合于電源電壓范圍很寬的單電源使用，也適用于雙電源工作模式，在推薦的工作條件下，電源電流與電源電壓無(wú)關(guān)。如果在放大器 輸出端接上負(fù)載引起輸出電壓下降，那么下降的輸出電壓就會(huì)使反饋在反向輸入端的電壓不等于同相端的電壓，于是又會(huì)引起輸出端的電壓回到 Av= R8/R7+1 的參數(shù)。 集成運(yùn)放的傳輸特性 本電路由 R R C4 組成同相比例放大電路。它的放大倍數(shù)取決于外接反饋電阻，這給使用帶來(lái)很大方便。它的增益高，輸入電阻大，輸出電阻低，共模抑制比高，失調(diào)與飄移小，而且還具有輸入電壓為零時(shí)輸出電壓亦為零的特點(diǎn)，適用于正，負(fù)兩種極性信號(hào)的輸入和輸出。注意清潔菲溫爾鏡片，其正反同心圓表面有污點(diǎn)及霉斑點(diǎn)均會(huì)影響探測(cè)距離果。 (5)探測(cè)范圍要有余量，要考慮到夏天， 當(dāng)環(huán)境溫度升高與人體 表面溫度一致時(shí)（ 30～32℃ ），探測(cè)距離會(huì)縮短 1/3 以上， 甚至個(gè)別探測(cè)器會(huì)出現(xiàn)不探測(cè) 因此，務(wù)必引起注意。 圖 15 探測(cè)范圍 (3)探測(cè)器安裝位置不要致使探測(cè)范圍造成盲區(qū)，給盜賊可乘之機(jī)。 避免漏報(bào)警 (1)探測(cè)范圍內(nèi)不要有障礙物遮擋，留有探測(cè)空隙不足以引起報(bào)警。通常在保證防盜探測(cè)范圍內(nèi)