YVONNE's LoSt园-走在繁华间.我的寂寞更抢眼

老爸从Kenya回来了，日子又回到正常的轨道

 

 

总是觉得现在的生活在消磨我的意志，可惜也没有勇气策划下一次的出逃

“平凡”这个魔掌已经牢牢控制着我

也许是我自己不争气？！

假装没有烦恼，假装单纯，假装我还是小孩子

 

那天中午我放工返屋企之后放了毛毛出来玩。地砖很滑，我在那里滑来滑去还追毛毛，阿妈见到又感慨了~~

好一个没有烦恼天真快乐的小孩子啊~~~~

 

唏嘘

 

患了彼得·潘综合症的人，永远内心都不愿意长大，不接受成人的世界，不愿意背负责任，依赖父母

就是时下很流行的幼稚症咯

 

哈哈最近很开心

可能因为她与郁闷分手了

第一夜 
爱情就如一场大病 过了就好 

与寂寞做了朋友. 
从此，象是离你越来越远，想你的感觉也显得很模糊，记忆仿佛被距离扯成薄薄的一片，不在象以往那么有浓厚的韵味. 
所以我要彻底忘记你，要用这清凉凉的雨水，冲刷爱情留下的灰烬.雨过天晴之后，缘分的天空一定会更加美好. 

第二夜 
只有恋爱中的人才认为他们的相遇不是偶然的 

一切来得这么快，这么突然，这么巧合. 
认为彼此的相遇是必然的，因为在适合的时间，适合的地点，遇上了适合的人，这一切都出于"缘分". 
相爱是理所当然的. 

第三夜 
小心那些热恋中的人 因为他们都是疯的 
Beware of people in love， for they are also insane! 

男人和女人一旦沉溺于爱河，会做出无数件事后都觉得十分荒唐的事. 
他们会一天打十几个电话，不为别的只为听听对方的声音. 
上班时心不在焉地处理着公事，"身在曹营心在汉"殊不知"魂"已经飞到所爱的人身边. 
如此的肆无忌惮，只因他们有个理直气壮的理由----热恋中 

第四夜 
像蜜一样甜！ 
Sweet as honey! 

恋爱是甜蜜的，可以毫无保留的奉献一切. 
年轻是潇洒的，可以无所顾忌地挥洒青春. 
总会用很是冲动的行为让周边的人又爱又恨，总是向世界呼喊自已是最幸福的人. 
但这两个"总"不会是永远不变的... 

第五夜 
男人的尊严 都放在女人其他男人身上 

当一个男人说不在乎你的过去时，可以说他是骗你的. 
每每提起你和以前的恋人，刚开始时会装作很不在乎. 
可慢慢的虽然他口里没说什么，其实他心里是很不是滋味. 
你的过去在他眼里永远是一根无形的刺，正刺在他的"尊严"上面. 

第六夜 
女人的尊严 都放在她们的脸上 

女人和男人不一样. 
当她们感到不快，所有的表情都会展现在脸上. 
而且，女人是虚荣的容不得你在她面前称赞别的女人漂亮!若不然，她会给你脸色看. 

第七夜 
你了解我吗?! 
Do you know me well?! 

彼此的优缺点，表露无疑.经过长时间的相处，双方可以说十分的了解了. 
往日的新鲜感也就当然无存了，缺点也显现了，彼此的埋怨也开始多了. 

第八夜 
你快乐，所以我快乐? 
You are happy， therefore I should be? 

虽然，不再"新鲜"但关系没改变，彼此还是会维持这段恋情，"只要对方快乐我就会快乐...". 
喜欢一个人就把快乐寄托在他身上，他于是变得不能失去，一旦失去了，快乐就没有了. 
可依靠身外之物得来的快乐实在是没有保证的泡沫，所以，真的快乐吗? 

第九夜 
分手 
Say good-bye! 

相爱容易相处太难，谁说的? 
不记得，也无从去追究，然而确实说中重点和核心 
怎么相处都有问题，无法做到无欲无求，就自然不可能长长久久的在一起，相处久了就会出问题. 
当初的情有独钟最终会随着时日而慢慢变淡，双方都已经厌倦了争吵. 
也许在被爱情遗忘的角落里，会有更多闪光的东西，更容易激起心灵的撞击---选择了分手 

第十夜 
我想你! 
I miss you! 

分手后，大家又回忆相处的时光，"是否应该给彼此一个机会重新开始?!" 
后来男人和女人又走到了一起. 
人啊，总是反反复复... 

第十一夜 
继续还是放弃? 
To be or not to be ?! 

凡是任何东西，只要伸手可及，就不会有狂热的渴望. 
虽然又在一起了，但却无休止的追问自己，是真的还爱他吗? 
爱情是感觉上的事，感觉没有了爱情也就完了.就像一只放飞的风筝，断了就是断了，再也回不来了. 
每一个人都希望爱情的感觉能沉到心底，这毫无疑问，但那种心灵上的爱意，充其量只是一只飞在高空的风筝，危机四伏. 
只有自己明白，那份感觉已经不在了... 

第十二夜 
尾声 
The end ... 
最终，他们还是分开了. 

生病了.

头好晕哦~~快点好吧!!! 

 

之前还会侥幸有点幸福的味道.不过昨天喝凉茶之后头就好晕...晕呼呼的...今天还是晕呼呼的...惨了~~快点好吧.现在还生病也太没意义了吧.....

工作3个星期了.算是上轨道了吧.帮助经理处理新品开发的东西.一切都像是重头再来.一切都要跟到足.唉...

生活中的琐事就像新品开发中的各样零件.事情虽小但却影响着整个进度...一件事情也可以影响着我整个生活!

唔准病啊!!!唔准病甘耐啊!!!

 

唉...头好晕啊~~~

我想努力工作!我要努力工作!天 啊~~请赐我强健的体魄吧!!!

 

头唔好晕了.唔该!

 又被点名了~~今次轮到卡雯点我!玩多次咯.因为有D问题未答过的

 

在相互取暖的城市里

爱情留给我的是一片荒凉

 

在冷漠的人群中

总以为有双炙热的目光在凝望着

 

纵然望穿秋水

等了六载

 

苦涩的泪终究模糊了彼此的视线...... 

生活的定义系咩呢?

我成日都话开心最紧要.什么都不考虑.可是内心总会担心一些看不到的未来...

开心系好紧要.但系唔系就等于可以抛开所有.不顾一切呢?

 

傻孩子.

心痛和眼泪止不住了......

我的爱情像落花流水一样.散尽了.....

 

失恋了.

心真的很痛.

眼泪也是怎么的都不能止住......

 

心痛...遗憾...

 

只怪回忆太伤人

 

 

 

 

心真的很痛.

心痛和眼泪止不住了......

 

打開舊信箱，里面有好多舊郵件，承載著許多舊的囬憶

感覺好惆悵,也很虛無...似乎有些事情好像從來沒有發生過,就像夢囈一樣.

我話:囬憶都是假的.

 

最主要一個原因係:人係會變的...

其實我們自己也在變.這個是很正常的

因為地球每日都在轉.

 

不要再打開舊郵箱了,因為就算看了舊郵件,幫囬憶囬憶,感覺就像是在製作翻版光碟一樣.

將郵件里的文字轉化為影像片段然,后復製,再粘貼到大腦.最后在大腦里重復播放幾次...僅此而已

 

記得的我不會忘記.忘記的我也不會記得

 

心裏不可能再有鬼了...呵呵.

曾經烏雲密佈幾日的我...經過昨日之后居然奇蹟并迅速地徹底地被感化.然后恢復往昔的我...

昨日係我呢段時間過得最開心的一日.

講真的.自從我元旦之后屋企一繫列事情開始.我就沒有開心過...我又如何開心得落呢?!爺爺過身無耐奶奶又去陪爺爺了.之后我心情很鬱悶.

屋企人其實都一樣.我對他們不夠寬容.任性了.很對不起

......

昨天真係好開心

我要多謝自己...總係要踏出一步的......

哈哈哈哈哈.好開心!

開心的原因係因為我終于可以變翻開心.而唔需要假裝.唔需要戴面具.

 

想對我愛的和愛我的你/妳們說:開心的椒欣已經返哩啦!多謝你/妳們的一直陪伴与容忍.多得你/妳們的支持与關心.我好了!

 

我愛你/妳們!

無情無義.無牽無掛.無靈魂

 

最近自己的隂暗面占咗好大一部分.平時每個人都會有自己好隂暗都一面.不過只存在于意識深層.但係我噶就越來越"明朗化".

甘樣落去唔係好掂!!!因為已經得罪咗最可以接受我各種各樣缺點噶人了.我都知道平時我唔會做出D甘樣都事情.不過有陣時人係需要髮洩的.

唔係話平時一嚮好乖的人就唔可以拥有那個權力.我也只不過係任性.

由得我啦!!!過幾日就好噶啦...都无人明白我的.隂功!!!

 

呢個時候我最不需要人地來關心.會好逃避同人的接觸.因為自己將個心封閉起來.我就唔想打開住先.

就算一齊.我都係好虛偽地假裝我"好開心"...其實我無靈魂~~~我唔係討厭大傢.只不過我唔想自己變得甘虛偽.我暫時唔想勉強自己

過一陣就好噶了.我走過那段烏雲密佈的時間就會好噶了...

暫時縱容一下我

由得我自己啦......

我會好噶...放心.

不過到時候你地唔好走得太遠就好勒...我驚追唔上.

这两天总是作恶梦
昨晚更是.
翻来覆去一直不能睡.而且总觉得有些东西.我想.可能是奶奶来看我
后来到快深夜2点了.我在心里默念"喃麽哦呢陀佛".不一会就睡着.
可是还是作恶梦了.还梦到奶奶

因为睡眠不好.我也很不舒服.

以为今天打个电话给爸妈.告诉他们这件事情.
谁知道两个人都没有接电话.后来还是打弟弟的电话让MUM听的
我的目的是想告诉他们这件事情.但阿妈就一直心不在焉.因为她们正在外面吃饭.旁边还有很多三姑六婆乱搭话.烦死了.我只是很困扰.想MUM可以开解一下我.可是她根本就不关心我.还说我因为成天想那些事情才那样.其实我没有.我都已经放下了.想都没有去想了.可是最近的事情太奇怪了.我只是想告诉她们一下.不过啊妈居然激动到话做啊妈不是这样的.不是陪我笑陪我哭......我听到之后太伤心了.我把电话挂了.

我真的没想到是这样
到底她们关不关我?!是不是全世界最疼爱我的人不在了.就没有人会再关心我了?????

老爸不管我
老妈不听我
弟弟不找我

我自己一个人在这里哭...有人会关心吗?!

刘大MO留校成功

以后会在某个系当辅导员.又或者到学校某个部门工作.

看,人家马上出差去了.5天.主要去招生.

招甚么生?厉害了.学校新开发的一个专业.空中乘务.

招空姐去了.

 

A云同学正在蒙牛实习

天天5点半与睡魔搏斗.与时间比赛.累够呛

最后留不留在那里不好说

不过她说先学点东西吧.

 

jill同学.也就是在下

天天一个人在寝室

还好实验也开始了.

谁知道第一天去我实验所需药品一毫克都没有.I服了马红超~~

不三不四地又混过了几天

 

继续一个人的宿舍.哈哈.那可是博士生的待遇......

这生活.

敲钟去吧!!!

一生里和你爱的人要完成的50件事


我想幸福，也许就是这么一件、一件积累起来的……

　　1.布置一间书房，要一整面墙的大书柜，和你一起慢慢把它装满

　　2.和你背靠背，一边听我们都喜欢的CD，一边看各自的书，坐在木地板上

　　3.洗澡的时候，帮你刮胡子

　　4.你吃饭吃的香的时候，放下筷子看你一会儿

　　5.和你一起去西藏

　　6.和你一起去一趟北欧

　　7.偷偷用你的牙刷刷牙

　　8.当你下班回来说累极了，说饿得站不稳了的时候，抱抱你，然后做一桌子好吃的给你

　　9.和你一起照看我们的父母

　　10.至少有一次在大自然的怀抱里和你作爱

　　11、不为什么地亲亲你

　　12、让你做我所有作品的第一读者

　　13、每年春天一起去放风筝

　　14、经常抱抱你，也要你抱抱

　　15、每天早上唤醒你，或者被你唤醒

　　16、常常看见你的笑，还有你点头时候边摇头的样子

　　17、和你一起逛街，买菜，回家一起做饭

　　18、在街上走时和你保持身体的接触，不管是牵着手还是挽着你的胳膊，还是被你揽着肩膀，搂着腰。总之不要和你分开

　　19、和你一起看着我们的孩子长大

　　20、保持敏感细腻而知道感激的心，在很老的时候仍然会为你特意做给我的红糖荷包蛋掉眼泪，然后抱着你把眼泪蹭在你衬衫的胸前

　　21、和你心平气和地讨论问题，尽量不赌气，不吵架

　　22、听我叫你石头，叫一切我给你起的怪名字，开心的答应我

　　23、夜里醒来的时候，亲亲你，不吵醒你

　　24、在你需要的任何时候，把我的手伸向你

　　25、帮你洗头发的时候，不让洗发水刺到你的眼睛

　　26、你看专业书的时候不打扰你

　　27、跟你抢电脑，然后把配置更好的那一台让给你用

　　28、接听你从海边打来的电话，和你一起听海风，听浪花冲到你脚上时你开心的大叫

　　29、买菜的时候顺便买束花回家

　　30、你生病的时候轻声和你说话，喂你吃药前先试试水温，在你床前握着你的手念苏东坡、辛弃疾的词给你听

　　31、始终随身带着一张你的照片，有孩子以后就带全家的

　　32、每次过马路时都牵着你的手

　　33、只要你在家，我就不用钥匙开门，我只按门铃，我要你给我开

　　34、常常想着给你惊喜

　　35、半夜故意踢开被子，等你醒了给我盖好

　　36、学做更多好吃的菜，做好和你一起吃

　　37、打雷的时候和你抱在一起睡

　　38、每天都给我买牛奶喝

　　39、当我们吵架以后，我也许不想跟你说话，但是我要你给我倒杯茶，因为你可能会口渴

　　40、头发要一直保留到可以盘起来那么长，插一把簪子，每天晚上你来拔

　　41、和你在同一天里看了日出，再看日落

　　42、躺在你的腿上看伤感的爱情片，让眼泪打湿你的裤裤

　　43、靠在阳台栏杆上的时候，享受你从背后抱着我的感觉　　

　　44、跟你说谢谢和对不起的时候，都用真心说

　　45、突然下雨的时候给你送把伞或者去接你下班

　　46、忘记了存折、IP卡密码的时候大声的叫你

　　47、你和小孩在公园里疯的时候，我在长椅上看着你们微笑

　　48、认真听你说话

　　49、万一我有意外，我从高中开始记的所有日记都留给你

　　50、每天早晨在你身边醒来，都要感谢上帝让我活着，并且让我们在一起 

Abstract
Hydroxyapatite (HA) whiskers with uniform morphology and good crystallinity were successfully prepared by a precipitation-hydrolysis method in moderately acid solutions at 85–95
C for 48–120 h. A proper precipitation agent was selected to control the growth of HA crystal in a desired way. The lengths of HA whiskers were in the range of 50– 150 mm and aspect ratios (length/diameter) in the range of 40–100. The precipitates formed at each stage of the synthesis were characterized by XRD, FTIR, TG-DSC and SEM techniques. It is revealed that the morphology and crystallinity of the precipitates depended on the synthesis temperature and time as well as the concentrations of soluble calcium and phosphate ions. The HA whiskers obtained were morphologically stable at elevated temperatures below 1200
C. They were formed by the hydrolysis of precursors produced during the reactions and took over the morphology of fibrous octacalcium phosphate [Ca8H2(PO4)6.5H2O, OCP]. The stoichiometric HA whiskers were improved with the increase of the synthetic temperature and the duration.

 

1. Introduction
Hydroxyapatite, Ca10(PO4)6(OH)2, is one of the main calcium phosphate salts which have been studied extensively and used in clinically because of its excellent biocompatibility and bioactivity. At present, applications for synthetic HA are restricted to areas free of dynamic load bearing because synthetic HA is known for its weakness and brittleness [1–3]. On the other hand, the major requirement of acceptable bioceramics either in dense or in porous form are a good biocompatibility, high mechanical strength, good thermal stability at high temperature and easy of handing in an operating room environment [4,5]. Therefore, numerous studies have been developed to investigate the reinforcement of bioceramics materials. Generally, a common method to improve the mechanical brittleness and reliability of ceramic materials is toughening the ceramic matrix by the addition of short fibers or whiskers.Various fibrous materials or whiskers such as SiC, Carbon, Si3N4, Al2O3, ZrO2 and metal fibers have been applied in HA ceramics [6]. Unfortunately most of the available bioinert ceramic and metal reinforcements decrease the biocompatibility and bioactivity of HA ceramics. Consequently the investigation of HA whiskers or fibers and their application have recently received much attention.
HA whiskers or fibrous HA have been synthesized by various methods such as hydrothermal synthesis, homogenous precipitation, solid synthesis at high temperature and growth in the gel system [7–11]. But, these whiskers or fibers prepared by the solid reaction and in the gel system show a sensitive dependence on the preparation condition, and their crystallinity and thermal stability are relatively inferior. Although well crystalline needle-like particles under hydrothermal condition can be synthesized, it is difficult to obtain a crystal possessing a controlled morphology. Homogenous precipitation with a slow reaction rate is a relatively easy procedure for obtaining uniform HA particles. Many investigations in fibrous and rod-like HA have covered a wide range of compositions and experimental conditions
[11–13].However these precipitated fibrous HA have a relatively low crystallinity, are not a pure HA phase, possess a low aspect ratio. Therefore, we have tried to improve the homogenous precipitation method, by which HA whiskers with a high crystallinity, uniform morphology and high aspect ratio could be obtained. In the present paper, a series of tests were conducted to investigate the preparation process and the effects of synthetic condition on the morphology and properties of HA whiskers.

 

2. Experimental procedure
2.1. Preparation of HA whiskers HA whiskers were synthesized by refluxing a mixture aqueous solution of 0.167 mol/l calcium ions and 0.1mol/l phosphate ions. The typical experimental procedures were as follow: Soluble calcium ion and phosphate ion were prepared by dissolving the analytical grade reagents Ca(NO3)2.4H2O and (NH4)2HPO4 in distilled water together with desired amounts of 0.5mol/l HNO3. After mixture with a stoichiometric Ca/P molar ratio of 1.67, they were put into a glass distillatory and refluxed together with the additive, urea, at 85–95
C for various lengths of time. After the reaction, the solid product was filtered and washed with distillated water, followed by an ethanol treatment to
remove the residual ions and water. Final HA whiskerswere dried at 80
C.

2.2. Characterization of HA whiskers

The phase composition of the HA whiskers and the precipitates formed at different stages were identified by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The morphology and microstructure of HA whiskers were observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Simultaneous Thermogravimetry and Differential scanning calorimetry (TG-DSC) were performed to analyze the phase transition. The pH value was measured by pH meter, and the calcium and phosphorus ion contents in the HA whiskers were measured
by an atomic absorption spectrometer and an infrared spectra-photometer, respectively.

3. Results and discussion
3.1. Effects of synthesis condition and preparation process
The synthetic temperature and time, the pH value of solution and the concentration of Ca2+, PO4 3 ions were the main effective factors on the formation and morphology of HA whiskers. Maintaining the same concentration of Ca2+, PO4 3 ions and the fixed time, the  precipitates formed at different temperatures showed the different phase composition and morphology. The HA whiskers having the desired aspect ratios were obtained under the condition of 95
C for 48 h, 90
C for 72 h and 85
C for 120 h, respectively, which were related to the pH value of solution and the rate of hydrolysis of precursor phases. Our experiment also found that HA whiskers could be synthesized at 82
C, but it needed more than 180 h. The precipitates obtained from the moderately acid solution at different temperatures for various lengths of
time were identified by XRD and the results are shown in Table 1. The synthetic temperature had obvious effects not only on the decomposition of urea but also on the formation and growth of HA whiskers. The higher the synthesis temperature was, the more quickly the pH value rose with the duration. Meanwhile more precursors, such as dicalcium phosphate anhydrate (CaHPO4, DCPA) and fibrous OCP, were produced in the solution, and the HA whiskers could be formed quickly by the hydrolysis of the precursors. Fig. 1 shows the FTIR spectra of the precipitates formed at 95
C for
various lengths of time. The bands at 3581 and 630cm1 which were assigned to the stretching mode of hydroxyl group of HA and the bands at 1401–1458cm1 that corresponded to the carbonate group (CO3 2)in the HA whiskers [12–14] increased with the duration,whereas the bands at 874 cm1 that were assigned to the acidic phosphate group (HPO4 2) in the HA whiskers [12,13] decreased. These were related to the change of structure of the precipitates.
The precipitation of calcium phosphate from aqueous solutions is somewhat complicated due to the possible occurrence of several solid phases depending on the solution composition and the pH. Owing to the low pH value of solution at the beginning of synthesis, the HA whiskers could not be synthesized directly from the solution despite the fact that the supersaturations of HA, OCP and DCPA are often in the order HA>>OCP>>DCPA [15]. With the decomposition of urea, the pH value of the solution was raised. As soon as the critical pH value is obtained, the first appearance of solid phase, DCPA, was separated out after 12 min at 95
C, 28 min at 90
C, and 46 min at 85
C in a pH range of 2.4–3.1, respectively. Due to the hydrolysis behavior of DCPA in the solution [16],DCPA hydrolyzed to HA as follows:Ca2þ þ HPO2 4 ! CaHPO4 CaHPO4 þ H2O ! Ca10 PO4 ð Þ6 OH ð Þ2þH3PO4 ð2Þ while the compound of H3PO4 produced resulted in the decrease of pH and the dissolution of DCPA and HA formed rapidly. When the pH value of solution rose above 3.8, some of white fibrous precipitates that corresponded to OCP [17] appeared in the solution at a pH range of 3.8–5.7 after synthesis of 4 h at 95
C, 90
C for 12 h, 85
C for 18 h respectively. Since OCP is one of the thermodynamically metastable phases, the hydrolysis and transformation of OCP into HA whiskers took place as follows:
Ca2þ þ HPO2 4 ! Ca8H2 PO4 ð Þ6 5H2O þ H3PO4 ð3Þ
Ca8H2 PO4 ð Þ6 5H2O þ H2O
! Ca10 PO4 ð Þ6 OH ð Þ2þH3PO4 ð4Þ
On the other hand, because of the similarities between the structure of OCP and HA, the precipitates hydrolyzed by fibrous OCP were one of calcium-deficient HA with the composition range Ca(10x)(HPO4)x(PO4)(6x)(OH)(2x)
where x41, whose properties progressively approach those of HA. Fibrous OCP provided one formwork for the growth of HA whiskers, and HA whiskers were formed by the epitaxial overgrowths [18–20]. With the rise of pH and the duration, the Ca2+ vacancies in the calcium deficient HA whiskers absorbed Ca2+ ions from the solution, which made calcium deficient HA whiskers transform to the stoichiometric HA. So the intensity of bands of hydroxyl group increased with the
time and that of HPO4 2group decreased. Whereas the OH vacancies in the calcium deficient HA absorbed
PO4 3, OH and CO3 2 ions, affecting the characteristic of HA whiskers and resulting in the appearance of CO3 2 groups in the infrared spectra with the duration. In addition, the concentration of Ca2+, PO4 3 ions would effect the morphology and crystallinity [21]. In order to obtain scattered whiskers with a great aspect ratio, a low supersaturation should be maintained and an ideal concentration product of Ca2+, PO4 3 ions ranged from 4 to 50 mM2. It was found that when the concentration product of Ca2+ and PO4 3 ions was more than 50 mM2, the HA whiskers synthesized were characterized with the bundle HA fiber other than the single distributed HA whiskers (Fig. 2).

 

3.2. Morphology and characteristics of HA whiskers
Fig. 3 shows the SEM micrographs of the HA whiskers synthesized at 85–95
C. The HA whiskers had a uniform morphology, their lengths were in the range of 50–150mm and aspect ratios in the range of 40–100. It is possible to obtain the HA whiskers with a desired shape and size by selecting the synthetic conditions. The crystalline phase of the precipitate was investigated by XRD and identified as HA phase only (Fig. 4), and the HA whiskers obtained had good crystallinity and high purity. The Ca/P molar ratio was in the range of 1.60–1.62.Fig. 5 shows the FTIR spectra of the HA whiskers obtained at the different temperature and time. The position of bands at 1091, 1054, 601 and 563 cm1 and
bands at 3581 and 630 cm1, which were assigned as the stretching and bending motion of phosphate and the stretching mode of hydroxyl group in the HA whiskers respectively, was similar. Increasing of the synthetic temperature, the intensity of the bands of HPO4 2 group at 874 cm1 and the bands at 1421–1458 cm1 decreased. These meant that the HA whiskers synthesized were one of carbonate containing HA whiskers and contained trace calcium deficiency despite the fact that the stoichiometric HA whiskers could be improved and the amount of carbonate group in the lattice of calcium-deficient HA whiskers decreased with the increase of temperature.

 

3.3. Thermal stability of HA whiskers
Studies of XRD and SEM revealed that the HA whiskers synthesized at 85–90
C transformed partially into b-tricalcium phosphate, b-Ca3(PO4)2, after the heat treatment in air at 800
C for 2 h, which was related to the Ca-deficiency in the lattice of HA whiskers and agreed with the research of Yoshimura [6], indicating that Ca-deficient HA tends to precipitate b-Ca3(PO4)2 on heating at 900
C depending on the deficiency of calcium. When HA whiskers were heat-treated at 1200
C, a-tricalcium phosphate, a-Ca3(PO4)2, and bcalcium metaphasphate, b-Ca2P2O7, presented
obviously and remained a trace of HA phase. The HA whiskers had begun to decompose before 1200
C. Small equiaxed grains precipitated on the whisker surfaces and some of the HA whiskers transformed into rod-liked particles, but retained their fibrous morphology after heat treatment in air below 1200
C. However, when the heat-treatment was conducted at 1300
C, the HA whiskers disappeared and turned into irregular grains entirely, exhibiting a new structure consisting of a-Ca3(PO4)2 and tetracalcium phosphate, Ca4O(PO4)2, as well as a trace of b-Ca2P2O7. In addition, the FTIR analysis also revealed the appearance of b-Ca2P2O7 at the bands 955–989 cm1. The shoulder about 1220 cm1

 

4. Conclusion

HA whiskers with high crystalline, uniform morphology and high aspect ratio could be synthesized at 95
C for 48 h, 90
C for 72 h and 85
C for 120 h by a precipitation- hydrolysis method in moderately acid solution.
Their lengths were in the range of 50–150 mm and aspect ratios in the range of 40–100. The morphology and crystallinity of the products depended on the synthesis temperature and time as well as the concentrations of soluble calcium and phosphate ions. During the synthesis of HA whiskers, the precursors of DCPA and OCP were precipitated from the solution one after another.Because of the similarities between the structure of OCP and HA, HA whiskers with a chemical formula ofCa(10x)(HPO4)x(PO4)(6x)(OH)(2x) were formed by the hydrolysis of precursors and took over the morphology of fibrous OCP. The stoichiometric HA whiskers was improved with the increase of temperature and the duration. Since the HA whiskers obtained was one of carbonate containing and contained trace calcium deficiency with Ca/P molar ratio of 1.60, some of the HA whiskers transformed into rod-like particles when they were heat treated about 1200
C in air, but retained their fibrous morphology.

Acknowledgements
The authors would like to acknowledge the financial support from the National Science Foundation of Hubei Province of PR China (99J076).

 

3月31号早上10:30.

我们这个大家庭又添了一位好Qty的MM...

 

厮人以逝

重迎新生

 

话说我松表叔的小小娇妻(芳龄20.刚满.........汗...心想自己都啥年纪了?!)都去香港有三个星期了...还以为她家那边有早产史.她也有可能那样

谁知道都过了预产期了.那位小美眉还赖着不出来.

没办法.最后打点滴....

终于,小MM勇敢.顽强地呱呱"落地"了...呵呵

我们家族终于"熬"出头了,迎来了喜庆之事

 

希望这也算个新的开始

大家都努力吧~~

 

奶奶一辈子都为这个家族鞠躬尽瘁.费心劳力.含辛茹苦的...想想.我们没有理由不好好地生活下去

我知道爷爷奶奶一直都"罩"着我们呢

所以.

我一定要/会得到幸福的

 

OH YEAH~~!!

风雨过后...剩下的依然是平静

平静其实就是平凡.

平凡.也就是幸福

 

难得平静

难得经历

 

现在是一片空白啊.也不知道自己到底想表达些甚么

那种感觉确实不好说

到现在为止我还没有找到一个词可以适当形容我现在的心情...

唉.

 

太无奈

1.豆豆就生BB了.21号是预产期.希望一切顺利.还有.真系好想TT她得意的BBG啊!!!!什么时候带BBG回国.一定要去LOOK LOOK!!!

 

2.论文题目定了....我这种"不食人间烟火"的当然是最后剩的那些题目中选啦...结果是马红超的那几个一看就很吓人的论文...无奈之下选了一个<<仿生材料羟基磷灰石的制备与研究>>...总比跟张新欣和薛芒的好.毕竟马红超人家是博士后.应该不能问什么什么都不会吧.而且老师人挺好的.到时候应该不能太为难我们.我以后就要和东莞清姐姐一起在实验室奋斗了...都好的...代表终结前最后的挣扎

 

3.刘大墨她家建的那个大商场也快开业了.这些天没把她给累坏.东奔西跑的还要惦记着各种各样的小事情.还要顾着这边学校的考试.真难啊.不过没有事.人家可是女铁人.一个字.强!!

 

4.奶奶最近都没有什么事情.就是盼望着我早点回家.学校今年对我们都算唔话得了...提前三个星期给我们假.我们足足放成3个多月.爽.不过我得注意点.我的体重已经严重超标了.为了中国的美好山河.我还是控制点好.

 

5.下个学期开学就要去实习.好象地点是石家庄和北京.行.去呗!!!当玩.不过很多人都不想去.觉得无聊.其实再无聊.都是一班人.总是会有很多开心的事情发生.以后我们要回忆起大学生活.还是有点素材的.总比自己一个人在家呆着有意思...哎..也是最后一次班集体活动了.除了最后那个散伙饭.也没啥了.去呗...我们去了要多多照大合照.以后羡慕死不去的同学.哈哈 .哈哈哈哈。好坏啊.我想大概提前几天上沈阳找他们玩几天.然后再一起过去石家庄.以后我要回广东了.也应该很少机会能再上东北这边.好朋友很难得的.要珍惜.有空就多聚聚呢...呵呵.我会不舍得的.

 

6.回家应该还是要继续学画画.挺好的..多学点东西对自己有好处.其实说起来很惭愧呢.我上大学.我觉得学的东西最多的.居然还是上个假期在家那里学的那两个星期画...大学.大学...意义何在?!所以还是出去好.有机会就要出去!

 

7.今年圣诞不能好好过了.大家都走了.剩下要考研的.我虽然不考研.但还有一科高数.哎.烦人.还得补...元旦就在家了.元宵也能在家.还是这么多年来第一次能在家过元宵.开心.

 

祝大家都开心过接下来的多多个节日啦~~生活依然很美好.只要KEEP住一个好心情.

刺猬本来是耗子．只是它一直都受到伤害．所以长出了长长的刺．．．保护自己

就算真的受到了伤害．先流血的．也是对方

．．．

 

我想了想．大概这个样子已经有３年时间了．．根本不知道为什么就这样．我毫无记忆地过了这么长时间．

是我自己忘记了．还是我根本就不曾记得

这个现在已经很不重要了

反正我是大头虾．

 

当自己在别人的生活中显得举足轻重．而别人在自己的生活中又是那么的毫无所谓的时候．我的问题来了

如果条件相反．是否我会感觉会好一些？！

她还是说得很对的．没有什么对我来说是重要的．

怎么在她对我说之前，我就那么麻木呢？现在好了．我也开始反省了．不过这个也正是噩梦的开始．．．

 

我不重视．因为我不在乎．我不在乎．因为我无所谓．我无所谓．因为我不上心．我不上心．因为不会受伤害．我不会受伤害．因为我最怕受伤害．

 

我是耗子．一个带刺的胖胖乎的耗子