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畢業論文中的感謝信

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第一篇:畢業論文中的感謝信

畢業論文中的感謝信

請大家一起來欣賞以下這一篇精彩的畢業論文中的感謝信範文:

感謝上帝,讓我可以順利的完成畢業論文。回顧兩年多以來的碩士學習和科研工作,我在學業、科研和生活上得到了衆多老師、同學和朋友們的熱心幫助和有力支持。在此,我要向他們表示我誠摯的謝意!

首先,今日論文的完稿,多承蒙我導師楊*副教授和張*老師的悉心指導,兩位老師給我提供了良好的實驗環境,同時在科研上給了我大量的、極其有益的建議和具體的指導,並在論文的撰寫和審稿中傾注了大量的心血。此外,楊老師還在生活和思想上關心我、照顧我。在此,我再次表示萬分的感謝!

其次,非常感謝實驗室的……碩士的幫助,對我的學習和科研工作給予了很大的幫助和支持,在我的科研工作和論文撰寫中,他們都給我提出了寶貴的意見和建議,在此表示深深的謝意。

再次,特別謝謝我的一羣同學和朋友+,一起生活和工作學習的美好時光裏,你們給予我的真誠的鼓勵和無私的幫助是終生難忘的。

最後,我要感謝父母和親人多年來在生活上無微不至的照顧和精神上的支持,我能長這麼大,還能夠有機會讀書,甚至碩士畢業,真的不知道對你們的付出說些什麼,誰言寸草心,報得三春輝。千言萬語化作一句感恩的話:辛苦了!

第二篇:畢業論文中英語短片

主題: 翻譯

1、man marine diesel engine man

the latest large bore two storke man, engine is the ksz 90/163b series in cylinder number from 6 to 12 and developing2,700kw(3,672hp)/cyl. the engine operates at 122r/min, with an m.e.p of 13bar and a mean piston speed of 6.5m/s.

the bedplate is of fabricated design and consists of weo i-shaped longitudinal girders with transverse menbers into which the cast steel bearing housings are welded. the thrust bearing casting is incorporated into the bedplate.

columns have been replaced by frames constructed of box shaped longitudinal girders. thew fabricated top and bottom sections run the full length of the engine and are mounted on the bedplate. such an engine frame helps to stiffen the engine and so protect the bearings from the deformation forces transmitted via the ship's double bottom. the cast iron guideways for the crosshead are attached to the top section and seal off the crankcase.

the cylinder jackets are individual castings bolted together to form one

continuous member. the one piece cylinder liners are fitted into the jackets from the top and a cast steel strong back is fitted in way of the combustion space to help absorb gas forces. the scavenge process is the man loop system and the scavenge and wxhaust ports are arranged in two tiers and are carried far around the liner. the vertical lands between the ports are cooled by water passing hrough cast in tubes and hence to passages arranged around the liner above the exhaust ports.

each cylinder cover is in two parts, the lower section is of special (更多內容請訪問首頁)thin walled forged steel permitting the area in way of the combustion gases to be intensively cooled whilst absorbing thermal stresses and this is held in position by an upper supporting unit of cast iron, which transmits the gas forces to the cylinder jackets via long studs. the joint face between the cylinder cover and the liner is arranged as far from the combustion process as possible. the gas loads on the engine structure are constrained by means of hydraulic preloaded tie rods which connect the bedplate, frame sections and cylinder jackets into a single unit.

the crankshaft is of the semi-built tybe, with the journal being shrunk into the forged or cast steel crank throws. with the exception of the six-cylinder engine, it is in two arts joined by fitted bolts. the coupling flange for attachment to the propeller shaft also accommodates the turning gear and is integrally forged with the crankshaft. the aft end section also incorporates a thrust collar. the drive for the camshaft gear train is taken from a spur gear which for a six cylinder engine is the couping end and for 7 to 12 sylinder engines the drive is located in the middle

of the engine.

the piston crown is of forged steel and is designed for intensive cooling; the central supporting body is of cast steel and is mainly suvjected to compressive stress. the two components are bolted together and connected to the piston rod. a single piece piston skirt fitted with bronze rings guides the piston in the cylinder liner. the piston ring grooves for a standard engine are flame hardened against crosshead pin bearings are whte metal lined shells lubricated by means of highpressure pumps. the piston forces are transmitted over the entire length of the crosshead pin then to the connecting rod via the lower half single bearing shell. the principle of hydrostatic lubrication has been applied to the crosshead using high-pressure lubricators. this is achieved by means of high pressure rod,high pressure oil is delivered to the ower part of the crosshead bearing, the pumps press oil film is maintained at all times and on all loads between the journal and the shell.

scavenging of the cylinder liner is on the loop scavenge system and constant pressure of the exhaust gas is used to drive the turbochargers. during running up and in the lower partial load range the turbochargers are assisted by electrically driven auxiliary blowers connected before the compressors of the main blowers. in the upper power range the auxiliary blowers are disconnected. diffusers are fitted in the exhaust system and facilitate charge removal and scavenging in each cylinder. the diffuser also prevents pressure pulses from one cylinder interfering with another during operation.

2、man-b&w mc engine man-b&w mc

man-b&w k90 mc-c engine is a large crosshead tybe two-stroke engine with a broe of 900mm, a 2,300mm stroke and an operating speed of 104r/min. it is constructed with between six and twelve cylinders.

developed as one of the extensive range of the manufacturer's mc engines, it is of the power and speed best suited to large, fast container ships. the increase in running speed is obtained by a slight decrease in engine stroke. high thermal efficiency is maintained by an increase in mean effective pressure(m.e.p.).

construction can be considered generally as typical for the whole range. the engine bedplate is of rigid box form, fabricated from steel plates with main bearing supports of cast steel. welded 'a' frames are assembled into a frame box which contains the crankcase, the crosshead guides and also supports the wheels for the chain drive of the camshaft. a cast iron cylinder frame accommodates the scavenge space between the cylinder jacket and the diaphragm, both of which are water-cooled.

long pre-stressed tie bolts are fitted between the top of the frame and the underside of the bedplate girders.

the cylinder liner is of alloy cast iron, its upper flange lands on top of the frame and has bore cooling. it is secured by a forged steel cylinder cover which is also bore cooled and is shaped internally to accommodate most of the combustion space. cylinder luvricating oil is injected at one level in the liner. pistons have a chrome-molybdenum alloy steel crown with hard chrome-surfaced ring grooves in which four compression rings are fitted. in this particular model a protective layer of inconel is welded to part of the crown surface to prevent high temperature corrosion. the piston is oil cooled, oil being supplied by a telescopic gland to the crosshead and then through the piston rod. it is returned from the crosshead to a slotted pipe in the crankcase. a short cast iron skirt is added. the crown is bolted to the piston rod at an inner support ring.

surface hardening reduces wear on the piston rod at the diaphragm gland. the rod is bolted ata the top of a cylindrical crosshead which is of large diameter and incorporates a full-length bottom half-bearing shell. floating guide shoes are attached at each end.

the crankshaft may be either semi-built up or of welded construcion, with large journals and pins. all crankcase hearings are of white metal. main bearings have thick shells, crankpin( bottom end ) and crosshead(top end) bearing have thin-wall shells. white metal is used for the guide surfaces. the exhaust valves are operated hydraulically under oil pressure from cam-timed actuated pistons. they have air compressed springs which allows them to be rotated by vanes. the valve spindles are usually manufactured by the hot isostatic pressure(hip) method, a compound nimonic and austenitic steel part construction. valve housing is cooling at its seat and spindle guide bush but its upper duct is uncooled to avoid low temperature pumps are cam driven and timed by the plunger helix. an adjustable barrel allows variable ignition timing to maintain combustion efficiency at low speed and can be adjusted to match the ignition quality of fuels. pump timing is changed for astern operation by a link connected at the cam roller guide which is activated by compressed air. each pump supplies three identical fuel injectors for the

corresponding unit. injectors are uncooled but they circulate hot fuel oil directly white their needle valves are in the closed position.

the engine operates with a constant pressure system, with uncooled turbochargers. two auxiliary blowers are fitted to operate at low charge air pressure or at low

engine revolutions. a number of waste heat recovery and power take-off systems can be operated under running conditions.

第三篇:文獻檢索在畢業論文中的應用

文獻檢索在畢業論文中的應用

中文系093班鄧新花

畢業論文通常是一篇較長的有文獻資料佐證的學術論文,是高等學校畢業生提交的有一定學術價值和學術水平的文章。它是大學生從理論基礎知識學習到從事科學技術研究與創新活動的最初嘗試。學生在整個畢業論文寫作中需要查找大

量的文獻資料,文獻資料的查找對一篇畢業論文寫作的成功至關重要。

畢業論文選題中的文獻檢索

畢業論文題目的選定不是一下子就能夠確定的.若選擇的畢業論文題目範圍較大,則寫出來的畢業論文內容比較空洞,難以結合實際;而選擇的畢業論文題目範圍過於狹窄,又難以查找相關文獻資料,會讓人感到無從下手.對於畢業論文題目的確定,通常可以採取先選出一個大的研究方向,再圍繞該研究方向查找文獻資料,通過閱讀、思考、分析材料逐漸把畢業論文題目範圍縮小的方法。

畢業論文材料的收集與整理中的文獻檢索

通過收集得到的材料一開始沒有必要都通讀,可以先翻翻目錄或索引,找出與畢業論文論文題目有關或緊密相連的章節。通過泛讀,大致瞭解本論題有關的研究現狀和前景,避免重複別人的工作。在這些過程中,有幾樣事情需要做:概括出與畢業論文題目有關的研究現狀畢業論文不同於一般的論文,專業的畢業論文是某一學科領域的科研成果的描述與反映,沒有研究,寫作就無法進行.而研究的一定前提是必須掌握儘可能多的文獻信息資料。一個人讀的書越多、查找的資料越全面,專業水平就越高,創造性的思考可能性就越大,寫出來的論文質量就更高。因此,大學生在寫作畢業論文時,首先要學會如何檢索文獻資料,懂得

文獻查找的方法與技巧。

,下面是我所瞭解的幾種可以查閱資料的地方

(1)中國知識基礎設施工程網(cnki數據庫)。它是由清華同方光盤股份有限公司和清華大學中國學術期刊(光盤版)電子雜誌負責牽頭實施的.其建立的cnki系列數據庫包括期刊、報紙、博碩士畢業論文等,收錄了自1994年以來的國內公開出版的6000多種期刊(編者注:現在已達到8400多種)和報紙上發表

的文章的全文。網址是或http://。

可見,文獻檢索知識的應用對於如何寫好一篇文章是非常重要的,我相信通過合理的運用,我們一定可以很好的把論文寫好。

第四篇:畢業論文中參考文獻的格式規範

一 .參考文獻(即引文出處)的類型以單字母方式標識:

參考文獻類型文獻類型標示

專著m

論文集c

報紙文章n

期刊文章j

學位論文d

報告r

標準s

專利p

電子參考文獻類型標識

數據庫db

計算機程序cp

電子公告eb

二.① 主要責任者(專著作者、論文集主編、學位申報人、專利申請人、報告撰寫人、期刊文章作者、析出文章作者)。多個責任者之間以“,”分隔,注意在本項數據中不得出現縮寫點“.”(英文作者請將作者名寫全)。主要責任者只列姓名,其後不加“著”、“

編”、“主編”、“合編”等責任說明。②. 文獻題名及版本(初版省略)。③ 文獻類型 及載體類型標識。④ 出版項(出版地、出版者、出版年)。⑤ 文獻出處或電子文獻的可 獲得地址。⑥ 文獻起止頁碼。⑦ 文獻標準編號(標準號、專利號??)。

三.電子文獻的載體類型及其標識

對於非紙張型載體的電子文獻,當被引用爲參考文獻時需在參考文獻類型標識中同時標 明其載體類型。本規範建議採用雙字母表示電子文獻載體類型:磁帶(magnetic tape)— —mt,磁盤(disk)——dk,光盤(cd-rom)——cd,聯機網絡(online)——ol,並以下列 格式表示包括了文獻載體類型的參考文獻類型標識:

[文獻類型標識/載體類型標識]

如:[db/ol]—— 聯機網上數據庫(database online)

[db/mt]—— 磁帶數據庫(database on magnetic tape)

[m/cd]—— 光盤圖書(monograph on cd-rom)

[cp/dk]—— 磁盤軟件(computer program on disk)

[j/ol]—— 網上期刊(serial online)

[eb/ol]—— 網上電子公告(electronic bulletin board online)

以紙張爲載體的傳統文獻在引作參考文獻時不必註明其載體類型。

四、文後參考文獻表編排格式

參考文獻按在正文中出現的先後次序列表於文後;表上以“[參考文獻]”(居中)作爲 標識;參考文獻的序號左頂格,並用數字加方括號表示,如[1]、[2]、?,以與正 文中的指示序號格式一致。參照iso 690及iso 690-2,每一參考文獻條目的最後均以“. ”結束。各類參考文獻條目的編排格式及示例如下:

1.專著、論文集、學位論文、報告

[序號] 主要責任者.文獻題名[文獻類型標識].出版地:出版者,出版年.起止頁碼( 任選).

[1] 劉國鈞,陳紹業,王鳳翥.圖書館目錄[m].北京:高等教育出版社,1957.15-18.

[2] 辛希孟.信息技術與信息服務國際研討會論文集:a集[c].北京:中國社會科學出

版社,1994.

[3] 張築生.微分半動力系統的不變集[d].北京:北京大學數學係數學研究所,1983.

[4] 馮西橋.核反應堆壓力管道與壓力容器的lbb分析[r].北京:清華大學核能技術設 計研究院,1997.

2.期刊文章

[序號] 主要責任者. 文獻題名[j]. 刊名,年,卷(期): 起止頁碼.

[5] 何齡修.讀顧城《南明史》[j].中國史研究,1998,(3):167-173.

3.論文集中的析出文獻

[序號] 析出文獻主要責任者. 析出文獻題名 [a]. 原文獻主要責任者(任選). 原文 獻題名 [c]. 出版地:出版者,出版年. 析出文獻起止頁碼.

[7] 鍾文發.非線性規劃在可燃毒物配置中的應用[a].趙瑋.運籌學的理論與應用— —中國運籌學會第五屆大會論文集[c].西安:西安電子科技大學出版社,1996.468-471.

4.報紙文章

[序號] 主要責任者. 文獻題名[n]. 報紙名,出版日期 (版次).

[8] 謝希德.創造學習的新思路[n].人民日報,1998-12-25(10).

5..國際、國家標準

[序號] 標準編號,標準名稱 [s].

[9] gb/t 16159-1996,漢語拼音正詞法基本規則[s].

6.專利

[序號] 專利所有者. 專利題名[p]. 專利國別:專利號,出版日期.

[10] 姜錫洲.一種溫熱外敷藥製備方案[p].中國專利:881056073,**-07-26.

7.電子文獻

[序號] 主要責任者.電子文獻題名[電子文獻及載體類型標識].電子文獻的出處或可 獲得地址,發表或更新日期/引用日期(任選).

[11] 王明亮.關於中國學術期刊標準化數據庫系統工程的進展[eb/ol].

, 1998-08-16/1998-10-04.

[12] 萬錦坤. 中國大學學報論文文摘(1983-1993). 英文版 [db/cd]. 北京:中國大 百科全書出版社,1996.

8.各種未定義類型的文獻

[序號] 主要責任者.文獻題名[z]. 出版地:出版者,出版年.

五、參考文獻與註釋的區別

參考文獻是作者寫作論著時所參考的文獻書目,一般集中列表於文末;註釋是對論著正 文中某一特定內容的進一步解釋或補充說明,一般排印在該頁地腳。參考文獻序號用方 括號標註,而註釋用數字加圓圈標註(如①、②?)。

第五篇:triz理論在工科學生畢業論文中的應用

triz理論在工科學生畢業論文中的應用

當今社會高速發展,創新越來越受企業的重視,也是高校培養人才的重要方向。特別對於工科學生,無論是技術上還是理論上的創新,都可能給企業和社會帶來巨大的社會和經濟效益。然而,目前高校對工科學生的教育大多以基礎理論課程教育爲主,創造性、實踐性教育環節不夠,也使學生自主思考和拓展創新的觀念不斷弱化。畢業論文的設計過程是學生對所學的基礎理論和技能進行運用並創新的過程,是大學生綜合素質的具體體現。

但目前很多高校工科學生的畢業論文都流於形式,學生在選題、實驗設計、實施的過程中,過分依賴教師的指導,課http:///題內容往往是照搬其他人已有研究的成果,沒有自己的創新。因此,在畢業論文設計過程中,加強學生創新精神和創新方法的培養成爲當務之急。創新性思維開發的理論有很多,triz的英文全稱是theory ofthe solution of inventive problems(發明問題解決理論),它是基於知識的、面向人的發明問題解決系統化的方法學,是我國科技部大力向全國科技界推廣的創新方法論。本文主要探究了triz理論在工科畢業論文中的應用,舉例說明triz理論在紡織工程專業本科畢業論文的選題、實驗設計、實施到最後寫作的整個過程中所發揮的作用,從而爲http:///xingzhengguanli/高校工科學生畢業論文的設計提供一定的參考。

triz理論的基本原理triz理論是由前蘇聯發明家阿奇舒勒(g.s.altshuller)在研究了大量專利產品開發過程的基礎上提出並於1946年創立的創新思維方法,經過多年發展,triz理論已經形成了一套較爲完整的體系。triz理論的應用不斷從工程技術領域向自然科學、社會科學、生物科學領域滲透,在指導人們創新的過程中發揮着越來越大的作用。triz理論提出分析解決問題的方法主要有以下幾種:技術矛盾與創新思維方法triz理論認爲當技術系統某個特性或參數得到改善時,常常會引起另外的特性或參數劣化,該矛盾稱爲“技術矛盾”。解決這一矛盾可基於創新原理,如九屏幕法、金魚法、小人法等,並結合工程實際尋求具體的解決方案。