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Technology of web site advancement
Internet by its content represents a fountain of information, while from the point of view of its arrangement it is a huge dump. There are an enormous number of web sites. Multiple web sites are commercially directed, i.e. are aimed at profit earning. As profit depends on the number of visits to web site, no visitors means no profit. So, to obtain more orders, web site producers should first of all ensure good inflow of visitors (web site attendance). Every year this task becomes more and more critical for commercial web site owners (and not only for them), as the number of similar content web sites increases steadily along with competition intensifying correspondingly. The process of establishing conditions to attract more visitors is called web site advancement. The present paper discusses various ways of how to increase the number of web site visitors, it also describes the particular process of "Theater to Children" (www.teatrbaby.ru) web site advancement. Based on the paper outcomes a CD multimedia manual "Technology of web site advancement" has been developed that will help web site producers to achieve good attendance for their network resources. As the purpose of web site advancement is visitor number increase then the main criterion of web site advancement efficiency should be the number of visitors for a certain time period, e.g. for 24 hours, a week or a month. Taking into consideration that about 80% of Internet users retrieve information through search systems, the major growth of visitors will occur owing to the enhancement of web site visibility in search systems.
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利用地面竿影的移動設計日略,使學生實際觀測,對地球的自轉、公轉與時刻之相互關係,有更完整的觀念,深入之了解,有興趣於觀察自然現象的奇觀,探求宇宙的奧秘,提高科學教育之效能。但是一般日晷只能觀測時刻,又如觀測太陽的高度(仰角),需另行觀測;擬知世界重要都市時刻又需查閱世界地圖或時刻換算,不勝其煩。為了同時達到這些多功用目標,且富有啓發性,構思新穎,有效的日晷儀,對科學教育之推行,必有所裨益,才有本設計。
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紅色獵殺—紅娘華的異速生長與覓食方式及棲息偏好的關係
紅娘華是不完全變態的水棲昆蟲,野外觀察,比較大蟲(四齡至成蟲)與小蟲(一齡至三齡)棲息及攝食的位置,發現大蟲會在較深及距岸較遠處覓食,交配會在更深、更遠處。經由測量不同齡期呼吸管、捕捉足及口器的長度並計算異速生長方程式,發現呼吸管是正異速生長;捕捉足及口器均為負異速生長。這個改變和覓食策略與棲息偏好有關。覓食策略中,食物對蝌蚪比較喜好;對振動及氣味(<25cm)皆有感應。棲地選擇,白天為負趨光性,晚上為正趨光性,且停棲在顏色較暗處。隨齡期增加,會偏好水較深處;二齡有群聚性,成蟲無。顯示不同齡期器官異速生長的改變對活動範圍及覓食策略有影響,覓食方式從主動追擊轉為等待,棲息位置由淺水轉為深水。
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由生物分析法來檢驗高雄煉油總廠廢水的淨化程度
據報載後勁溪水的污染,對於整個河川的生態都造成嚴重的影響,高雄煉油總廠的廢水也是排入後勁溪的,身為油廠子弟,對此切身之事,也該盡己所能地加以觀察研究。
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每當在野外進行觀察時,總會看到許多體型微小、體色黝黑,行動敏捷的針蟻\r (Ponerinae),即華夏粗針蟻(Pachycondyla chinensisEmery, 1895)。經由行為譜(ethogram)\r 的分析得知,華夏粗針蟻之有后聚落(queenright)職蟻間分工嚴謹,且具有成體搬運行\r 為(adult transport),於其覓食過程中,產生一特殊階級─運兵者(porter),專司進行成\r 體搬運,行為高度專一化並發展出特殊之儀式化行為(ritualized behavior)。於食物短缺\r 的情況下,運兵者(porter)佔外勤職蟻比例明顯提高,且被搬運者(portee)成為運兵\r 者(porter)的比例亦明顯提升。將運兵者(porter)於覓食過程中移除,覓食之職蟻數\r 量亦大幅降低。食物與蟻巢距離超過25公分,運兵者(porter)產生之機率亦隨之下降。\r 經過公式的推導,證實其成體搬運行為(adult transport)可縮短覓食中行走之距離,減\r 少總能量的散失與消耗,以利其達成最佳化覓食。
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課堂上所學得的重心僅止於三角形,並未提及四邊以上的多邊形或是凹多邊形的重心。於是我們利用網路及圖書館查閱多邊形的重心相關資料,找到以前科展的兩篇作品,及數學辭典中相關的幾何學知識。在了解資料的內容並試著自己作圖尋找多邊形重心時,我們發現以往科展作品中有錯及某些問題未曾解決。於是我們利用了【面積交換性質】找到修正的方法後,便可用【槓桿原理】求得正確之重心。並且此方法可推廣到凹、凸N多邊形。之後,我們也發現凹四邊形的重心隨著圖形的不同而存在於形內、形外、邊線等不同位置,進一步的我們研究出判斷式。至於凹N(N≧5)邊形之重心位置,是否存在判斷式?我們仍在努力尋找中。
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雷射光碟(CD)的鋁層用刀片刮除後,在月異丙醇清洗,可成為透光式光柵,用來做六項高中物理實驗。1.利用雷射光的繞射測量半徑4公分的CD的槽距。2.利用CD測量照明燈的可見光波長。3.拍攝照明燈的光譜。4.測量研究發光二極體的光譜。5.量太陽光的可見光波長。6.觀測光的散射和吸收光譜。
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本研究可改善一般家用或市售的電源插座,讓一般電器使用者,能夠容易的從本裝置上LED BAR 的顯示知道,目前插座所提供的電流大小,是否已達安全的限度,有指示與警示作用,防止過載的發生,LED BAR 的顯示效果也能夠提醒電器使用者養成節約能源的習慣,隨手關閉不需要的電器設備。本裝置是使用霍爾IC 來檢出導体電流大小所產生相對應的磁場強度,再轉換成電壓訊號輸出,是屬於非接觸式的電流感測,安全性佳,檢出訊號經放大電路處理後,驅動LED BAR,過電流時(15A) 15A),內部蜂鳴器會發出警告聲響,進而送出訊號使的無熔絲開關(附漏電斷路器者)跳脫,達到過載保護的功能。
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3D印表機正夯,號稱能啟動第三次工業革命,什麼都能印;綠色能源是人類未來能永續生存的重要條件,風力發電非常適合台灣發展;南部的天氣,夏天異常炎熱,人手一台小電風扇。本研究在探討用簡單的3D繪圖工具,利用3D印表機,製作不同葉片數、寬度、角度的葉片,裝在市售的馬達上,在固定的風速下,找出可產生最大電壓的葉片,並反過來探討能產生最大電壓的葉片,在給馬達相同的電壓下,是不是也可以產生較快的風速,並利用實驗素材製作出一台簡易的小風扇暨風力發電小夜燈的功能。
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在100個硬幣內,任取若干個,若能將硬幣分成至少2堆以上,且每堆的數量依少而多成為公差2的等差數列,則稱為1種分法。能以最少硬幣排出最多種分法者為優勝。先排出1~100的數中,計算每一個數的分法,再歸納出任一個整數有多少種分法的計算方式,發現與其因數個數相關。若一個數有n個因數,則有(n+1)/2-1(當n為奇數)或n/2-1(當n為偶數)種分法。從中將同樣多種分法的數歸為一類,並找出其中最小的整數,這些數就是我們獲勝的關鍵。計算出1~100種方法的最小整數,發現可由k種方法的最小整數推論出2k+1種方法的最小整數。而這之中有一些例外的情況,探討之後也整理出兩大類不同型態的原因。
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On Course Line Management
The Online Course Management system was developed in 2012 by George Moon to address the issue of creating course books at Burnside High School in Christchurch, New Zealand. The course books are designed to inform students, staff and parents of the many courses that are available for students to choose for their next year of study. In the past, the system that the school used consisted of large amounts of paperwork and duplication. Not only did this system require a lot of effort from staff, but the course book cost the school thousands of dollars to produce, as it had to be sent off to be published into a large book that would be read by students for a week, then likely thrown out. This year the school decided to digitise the course book, so that students would look at their courses online. Earlier this year, the school believed that the new School Management System (SMS) ‘KAMAR’ would be able to handle all of the necessary information, however this was not the case. Because of this, they needed a simple solution that would collate all of the course data, and then output it as a course book. I developed my project to do this. It is a web based program that is accessible by staff on their computers which enables them to enter in all of the course and assessment data for their departments. As it is all securely stored on a central database, it reduces duplication and staff workload, as well as the added environmental bonus of less paper being used. The program also outputs data in a number of ways including as a coursebook PDF (digital document which can be uploaded or printed), an Excel spreadsheet and a webpage for easy viewing. It can be sorted or printed by different categories (such as level, faculty, department), which proved to be a very useful feature. Following some research on areas such as design principles, browser compatibility and screen resolution (computer screen size), the program was designed to make best use of this this information. For example, most of the computers that staff would access the website on were of a similar size screen, so I made sure that my website worked well for them. I also used my research on design principles to try and create a simple, clean interface that users with limited computer skills would easily be able to navigate around. The outcome was real, as it was used by the school to generate their coursebook this year. Following a 95% student completion rate of course selection many months earlier than previous years, the system (although it had some issues) was pronounced a success, and the school is looking to use it in the years to come. There are a number of steps I am looking to take in the future with this program including the potential sale to other schools, so they can take advantage of the features it has to offer.
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現今的社會是越來越進步了,工商發達日新月異,國民所得的提高,使大家享受樂趣之餘,也越來越重視災害的預防了,因為多一分的預防,當災害真正發生時就能多減少一分的損失,所以一點也馬虎不得。最近台灣的治安也亮起了紅燈,從電視上時常可以看到重大刑案的發生、闖空門、竊盜的案件也層出不窮,因此對於防盜系統也就相形顯的重要了,我們這次所做的就是從門窗警示、大門密碼鎖、瓦斯偵測、溫度控制、室內亮度、樓頂天窗、以及庭院花草水分不足澆灌方面來著手,使我們的住屋更加安全舒適,更多一份保障。 \r \r \r
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