2014年8月14日星期四
clean+easy除毛-蜜蠟脫毛脫毛原理
物理脫毛。用有粘性的蜜蠟粘住蜜蠟除毛體毛,一並撕除。使用方法:將蠟均勻塗在皮膚上,蜜蠟要緊緊貼往皮膚,以便能將汗毛全部粘住,然後蓋好紗布,GIGI除毛以拉扯的方式把蓋在皮膚上的紗布扯起,把毛發連根拔除。脫毛一般在美容院除毛教學進行。
專家提示:使用時會引致疼痛,而且化學合成的蜜蠟容易對皮clean+easy除毛膚造成刺激;往下撕時,體毛容易留在毛孔內一部分,斷了一半的毛端極容易紮入毛囊,引起毛囊炎。
望遠鏡-顯微鏡使用注意事項
持鏡時必須是右手握臂、左手托座的放大鏡姿勢,不可單手提取,以免零件脫落或碰撞到其它地方。
輕拿輕放,不可把顯微鏡放置在實驗台的邊緣,應放在距邊緣10cm處,以免碰翻落地。
保持顯微鏡的清潔,光學和照明部分只能用擦鏡紙擦金相顯微鏡拭,切忌口吹手抹或用布擦,機械部分用布擦拭。
水滴、酒精或其它藥品切勿接觸鏡頭和鏡台,如果沾汙應立即用擦鏡紙擦淨。
放置玻片標本時要對准通光孔中央,且天文望遠鏡不能反放玻片,防止壓壞玻片或碰壞物鏡。
要養成兩眼同時睜開觀察的習慣,以左眼觀察視野,右眼用以繪圖。
不要隨意取下目鏡,以防止塵土落入物鏡,也不要任意拆卸各種零件,以防損壞。
使用完畢後,必須複原才能放回鏡箱內,其步驟是:取下標本片,轉動旋轉器使鏡頭離開通光孔,下降鏡台,平放反光鏡,下降集光器(但不要接觸反光鏡)、關閉 光圈,推片器回位,蓋上綢布和外罩,放回實驗台櫃內。最後填寫使用登記表。(注:反光鏡通常應垂直放,但有時因集光器沒提至應有高度,鏡台下降時會碰壞光 圈,所以這裏改爲望遠鏡平放)
Epoxy施工-不同樹脂對膠黏劑性能影響的分析與思考
在研究Epoxy環氧樹脂、水性聚氨酯以及有機矽樹脂的基礎上,將針對不同的樹脂應用合成的情況,分析其對膠黏劑性能的影響。
膠黏劑是通過界面粘附以及內聚作用,將不同材料之間連接
在一起的天然的或合成的、有機或無機的物質。而膠黏劑的基本成分是粘結物,其主要成分是樹脂、橡膠類以及高分子化合物。本文將不同的樹脂作爲研究對象,通過環氧樹脂、水性聚氨酯以及有機矽樹脂之間的差異,分析其對膠黏劑性能的影響。以下是簡要的分析:
一、環氧樹脂對膠黏劑的性能影響的研究
環氧樹脂膠黏劑主要成分是環氧樹脂,就分子角度而言,環氧樹脂的結構中含有若幹個的環氧環,通過膠黏劑合成反應,其自身交聯網狀結構能與固化劑充分作用, 並改變膠黏劑的性能。要知道,環氧基的不飽和基團,因氧原子的電負性,並考慮到氧原子自身孤對電子的作用,其電子雲密度較高,能接受親電基團的進攻 [1]。單一的環氧樹脂在固化狀態下韌度較低,抗沖擊能力較弱,在應用上較爲困難。以下是環氧樹脂對膠黏劑性能的分析:
1。環氧樹脂作爲膠黏劑的主體之一,它對膠黏劑的強度影響較大,以下是通過撕裂強度實驗分析其抗拉程度的內容:
在其成分用量不變的情況下,單獨將環氧樹脂作爲研究對象,通過數據可分析,隨著環氧樹脂量的改變,其抗拉強度逐漸減弱。可見環氧樹脂的用量改變將影響到環氧樹脂膠黏劑的性能。
2。隨著環氧樹環氧樹脂施工脂量的改變,環氧不飽和基也會改變,並影響其與固化劑的相互作用。以下是其簡要分析:
按照數據分析,因環氧樹脂的添加量增大,與固化劑結合的時間相對較長,反應程度較低,而黏合度則偏低。
3。在實驗過程中,通過溫度的變化,研究環氧樹脂中對膠黏劑的性能影響。隨著溫度的增加,環氧樹脂膠黏劑的韌性和粘度逐漸降低,此時環氧樹脂分子之間的氫鍵斷裂,粘度將會降低,當溫度達到75℃以上時,膠黏劑就會失效。
二、水性聚氨酯對膠黏劑的性能影響的研究
水性聚氨酯膠黏劑是通過在聚氨酯分子主鏈或側鏈中引入親水基團,並以水作爲分散劑的膠黏劑。在實際的過程中,通過聚氨酯的分析,能夠知道其對膠黏劑的影響。以下是簡要分析:
1。將水性聚氨酯乳液均勻平鋪在表面皿中,在室溫下幹燥,以下是相應聚氨酯添加量以及幹燥時間的分析:
隨著聚氨酯含量逐漸增加,羧基和氨基之間作用力將會逐漸增強,乳化粒徑也逐漸增大,分散能力則相對減弱,通過激光粒度儀可觀察,在聚氨酯含量按照比例增加 的基礎上,沈澱時間逐漸縮短,證明隨著聚氨酯的濃度增加,其有效粒徑增加,親水性減弱,幹燥的時間縮短,並引致膠黏劑沈澱速率加快,沈澱時間相對縮短。
2。水性聚氨酯自身的氨基甲酸酯基團對聚氨酯性質影響較大,通過羧基以及氨基的的作用,分子相互間的交聯力將增強,與水分子結合度將會減弱,分子團聚能力將會加強,水溶性乳化將會減弱,而均一性亦會較差,因此,其黏合度也會降低。
3。就分子的角度而言,聚氨酯內部含有兩個或兩個以上的氨基甲酸酯基團,其結構單元爲-[-O-CONH-]n-,通過水性聚氨酯的增加量,我們可以觀察到膠黏劑的顔色變化,以下是簡要的分析:
按以上的數據分析,隨著聚氨酯含量的增加,其分子鏈中的氨基甲酸酯基含量增加,彼此之間通過不飽和鍵交聯,相互間的作用力增強,乳化能力相對減弱,乳化粒子增大,折光率較低,膠黏劑的透明度將會逐漸下降,顔色變化逐漸加深。
三、有機矽樹脂對膠黏劑的性能影響的研究
有機矽膠黏劑能耐高低溫,有著較好的絕緣性能,可以較好地與膠黏接面結合,並提高其粘接強度,以下是其有機矽樹脂對膠黏劑性能影響的分析:
1。通過熱重測定,可通過設定溫度下的含量不同的有機矽樹脂對膠黏劑耐熱性的影響分析,以下是簡要分析:
通過以上數據分析,它的熱失重率將會降低,原因在于其網狀交聯點多,交聯密度大,耐熱程度較高。因此,控制適當含量的有機矽,能夠適當增加其耐熱性能,並增強其穩定性。
2。通過測定不同含量的有機矽樹脂對膠黏劑的影響,我們能夠知道,隨著有機矽樹脂量的增加,膠黏劑內部的網狀結構更爲複雜,Epoxy施工彼此之間的銜接點增多,交聯作用力也隨之增強,因此引致有機矽樹脂的活性增強,粘性也相應增強。
3。通過不同含量的有機矽樹脂測定,判斷其對膠黏劑的導電性能的影響。以下是簡要分析:
按照以上數據分析,在相同的電動勢的基礎上,其通過的電流逐漸減少,幾乎爲零,證明其導電性差,絕緣性能較強。
聯翔-日常零食飯後甜點 吃貨可DIY鳳梨酥
主料:低筋面粉80g、菠蘿5太陽餅00g、冬瓜500g
輔料:雞蛋30g、奶粉25g、糖粉50g、黃油30g、豬油30g
聯翔餅店調味:白糖50g、冰糖50g、鹽2-3g
[制作步驟]
1。菠蘿去皮去芯,用淡鹽水浸泡半小時之後瀝水切成小塊;冬瓜去皮綠豆椪去籽,切成小塊。
2。將冬瓜、菠蘿、白糖、冰糖依次倒入鍋中混合,靜置半小時之後混合果肉會出水。
3。加入適量水與果肉持平即可,開大火煮沸。
4。轉小火煮至冬瓜熟爛。
5。取3/4份的果料用料理機打成蓉狀,倒回鍋中小火慢慢翻炒。
6。直至果料炒到較幹,可以抱團爲止;待冷卻後均分20g/個搓成球狀。
7。將黃油切成小塊,與豬油室溫下軟化。
8。分三次加入糖粉用電動打蛋器打至發白、體積變大。
9。將雞蛋打勻,分次加入粉盆中,打勻。
10。低筋面粉、奶粉混合,篩入面盆中切拌均勻。
11。揉成表面光澤的面團。
12。聯翔將面團分成每份約20g/個,搓成球狀。
鳳梨酥 13。取一份按扁,包入鳳梨餡,用手掌搓圓,朝下放置。
14。做出若幹生坯。
15。擺入烤盤中,用手輕輕按壓,整理成長方塊。
16。烤箱預熱175度鳳梨酥,上下火、中層、烤制15分鍾取出。
17。翻面再太陽餅烤制3-5分鍾,上色即可。
[烹饪技巧]
1、制作餡料最好不要用鐵鍋,否則煮出來的鳳梨餡顔月餅色會發黑。
2、制作酥皮不能揉太厲害,容易出筋。
外籍幫傭-台灣“長期照護服務法”服務體系納入家屬和外勞
,截至去年底,島內共有71萬名失外籍廠工能者,其中65歲以上失能者就有45萬人,平均每個失能者需要1。4人來照護外籍幫傭,影響家庭可能超過百萬。在台“立法院”審議四、五年、攸關島內民衆老年生活質量的“長期照護服務法”草案,上午完成初審。除了失能者照護,也將家屬(家庭照顧者)列入服務對象,可獲得更多社會支持及關懷。
,值得一提的是,“長照法”草案也將外籍看護工納入長照服務體系,長照新制上路後,除了雇主聘用之外,失能者家屬也可向長照機構提出申請,由機構派出訓練合格的外籍看護工至家中服務。島內勞工團體對此態度一向保留,未來在“院會”審議,勢必還有一番拉鋸。
台“衛福部照護司司長”鄧素文指出,“衛生福利部”下半年會將“長照保險法”草案送至“行政院”,與島內民衆健康福祉相關的長照體系才能長久健全。
對于“長照法”草案通過初審,“衛生福利部部長”邱文達感到相當高興,他指出,“長照服務法”草案是“根本大法”,推動四、五年之久,終于在今年通過“立院”初審。他感謝“衛環委員會委員”能夠不分藍綠,一起努力參與此“法”修訂,讓草案內容更爲完備,符合民衆需要。
據悉,需要長照的人數衆多,但島外勞仲介內過去長照無專責“法令”。“長照法”草案則明訂長照服務內容、相關服務人員、機構,可有效掌握服務質量。其中,外籍看護工是否納入長照體系,一直是爭議焦點。鄧素文認爲,島內民衆未來聘用外籍看護工的管道將更爲多元,除了自行聘用,也可向長照機構提出申請。
草案規定,長照機構可以事先訓練外籍看護工,提高照護質量,有需要的民衆可向長照機構提出申請,以時數來計費,外籍看護工不用與雇主同住,可減少許多麻煩。部分“委員”則認爲,新制上路後,希望所有新進台灣地區的外籍看護工都由長照機構統籌訓練,維持一定的照護質量。
2014年7月1日星期二
slide bearing-Plastic Bearings Are Necessities for Many Machines
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Proper bearings are used to help with ensuring that all types of industrial devices are able to work with plenty of proper motions over a period of time。 Some of the most useful types of bearings that can work in any of these machinery items are plastic bearings。 These are items that are used to help with getting different machines to move properly。 There are also some benefits that make these different from other types of things。
Plastics make different shapes possible
The plastic bearings that can be used for applications can come in a variety of shapes。 Standard gears and belt driven items can be easily created。 Outer rings for some assemblies can also be used。 A pulley ball bearing can also work with a properslide bearing fastener。 All of these shapes are easily possible thanks to the use of plastics。 Plastic materials are known to be more malleable during the production process than that of some other items used to make bearings。
These bearings can be custom made
A big part of dealing with bearings is that some of them will have to be custom made for different types of machines。 This is why plastic bearings are so popular。 It can be very easy to make different custom bearings without too many problems associated with them。 In fact, the bearings will be so easy to make that they can be sold off at massive discounts to people who need them for a variety of processes。
They weigh less
It is easier for machines to handle these bearings。 They can weigh less than half of that of standard steel bearings, thus making it easier for a machine to use less energy to move them。
Corrosion is impossible
The last benefit of different bearings like these is that they can resist corrosion。 This is a necessity because of how corrosion can cause metal bearings to become useless。 This is especially the case for bearings that work underwater。
Proper bearings are used to help with ensuring that all types of industrial devices are able to work with plenty of proper motions over a period of time。 Some of the most useful types of bearings that can work in any of these machinery items are plastic bearings。 These are items that are used to help with getting different machines to move properly。 There are also some benefits that make these different from other types of things。
Plastics make different shapes possible
The plastic bearings that can be used for applications can come in a variety of shapes。 Standard gears and belt driven items can be easily created。 Outer rings for some assemblies can also be used。 A pulley ball bearing can also work with a properslide bearing fastener。 All of these shapes are easily possible thanks to the use of plastics。 Plastic materials are known to be more malleable during the production process than that of some other items used to make bearings。
These bearings can be custom made
A big part of dealing with bearings is that some of them will have to be custom made for different types of machines。 This is why plastic bearings are so popular。 It can be very easy to make different custom bearings without too many problems associated with them。 In fact, the bearings will be so easy to make that they can be sold off at massive discounts to people who need them for a variety of processes。
They weigh less
It is easier for machines to handle these bearings。 They can weigh less than half of that of standard steel bearings, thus making it easier for a machine to use less energy to move them。
Corrosion is impossible
The last benefit of different bearings like these is that they can resist corrosion。 This is a necessity because of how corrosion can cause metal bearings to become useless。 This is especially the case for bearings that work underwater。
powder metal-Laser Sintering The Wave of the Future
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When it comes to manufacturing prototypes, laser sintering is the wave of the future。 The use of lasers has proven to be extremely effective in a variety of applications, from laser eye surgery to laser fingerprint scans to laser light shows。 Lasers prove their effectiveness once again in the ways that they can be used to improve manufacturing technology。 Through the process of DMLS, you can make prototypes of metal parts with ease。 This technology is simple to use and can create accurately rendered parts made of a variety of different types of metals。 Whatever the part you need, you can make it with laser technology。
Direct metal laser sintering,powder metal or DMLS, is a manufacturing process by which metal powder is sintered into layers using lasers。 These layers are sintered together until they reach the desired thickness。 They require the incorporation of support structures, which are also made from sintered metal。 These support structures can be removed after sintering is complete。 The finished prototype may require some additional work in order to be perfected, such as heat treatment, shot peening, and other processes。 The result is a durable, accurate metal prototype that will help you to figure out whether or not your new design will work。
You can use DMLS to create prototypes from a variety of metals。 You can make parts out of cobalt chrome, stainless steel, Inconel, Hastalloy, and titanium。 Laser sintering applies powdered metal in 20-micron thick layers, and technology is continuing to move ahead on these innovations。 Soon, you will be able to use this technology on even more types of metals and alloys so that you can get your prototypes made in the metals that you want for maximumsintered metal durability and efficiency。 Your prototypes will be so good that you might even be able to use them in production。
DMLS took a while to be developed, but, now that it exists, iss moving ahead quickly with different metals and further innovations in the field。 There are sure to be more improvements to the technology of laser sintering, and if this process is any indication, the manufacturing world can look forward to even more efficient and cost-effective prototyping technologies in the future。 The easier it is to make a prototype, the more time you will have to perfect your part or product or whatever it is that you want to improve。 The wave of the future is continuing to forge forward。
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