The document discusses a study investigating the effect of carbon nanotube (CNT) geometry on the quality of CNT dispersion in solvent media. The study found that CNT diameter has a significant effect, with larger diameter CNTs dispersing better due to less interaction energy between bundled tubes. CNT length was found to not have a significant influence. Experiments examined CNT dispersion through UV-Vis spectroscopy and investigated dispersion methods like high shear mixing and ultrasonication. The results provide insight into understanding CNT dispersion in different media.
This document provides contact information for a company called Highland Trac that manufactures and supplies various automotive parts including crankshafts, camshafts, sprockets, transmission parts, recoil springs, roller assemblies, filters, seal kits, teeth and end bits, idlers, bushings, and link assemblies. The company is located at 180 4th Avenue West corner J. Teodoro Street in Caloocan City, Metro Manila and provides their email, telephone, and fax contact details.
The document discusses poor lifestyle choices such as lack of exercise, insufficient vegetable consumption, and inadequate sleep that can lead to health issues like diabetes, obesity, and depression. It notes that busy lifestyles, late night studying, and convenience of fast food can cause unhealthy habits. The document provides solutions like making a plan, setting goals, and educating oneself, as well as simple steps to improve like getting enough sleep, exercising daily, eating fruits and vegetables, and drinking water. In conclusion, it emphasizes the importance of managing time well and maintaining a healthy lifestyle for improved health and academic performance.
This short document promotes creating presentations using Haiku Deck, a tool for making slideshows. It encourages the reader to get started making their own Haiku Deck presentation and sharing it on SlideShare. In a single sentence, it pitches the idea of using Haiku Deck to easily create and publish online presentations.
Venkatesh has over 7 years of experience in project management. He has skills in project planning, requirements gathering, business analytics, quality management, and communication. He held project management roles at AGS Health, CSC India, and Temenos India where he managed software development projects, implemented PMO methodologies, and prepared project plans and reports. Currently seeking new opportunities to apply his experience in project delivery, process improvement, and people management.
The document discusses customer service standards for Island Buffet. It defines customer service and explains that the goal is to exceed customer expectations and ensure they are happy and return. Six common customer expectations are identified: friendliness, empathy, accuracy, professionalism, promptness and honesty. Examples are provided for each standard, such as greeting customers within 10 feet, asking questions to show empathy, giving correct information, focusing full attention on customers and being ready for all requests. The document concludes with defining "standard" and a question about any other questions.
The document discusses a study investigating the effect of carbon nanotube (CNT) geometry on the quality of CNT dispersion in solvent media. The study found that CNT diameter has a significant effect, with larger diameter CNTs dispersing better due to less interaction energy between bundled tubes. CNT length was found to not have a significant influence. Experiments examined CNT dispersion through UV-Vis spectroscopy and investigated dispersion methods like high shear mixing and ultrasonication. The results provide insight into understanding CNT dispersion in different media.
This document provides contact information for a company called Highland Trac that manufactures and supplies various automotive parts including crankshafts, camshafts, sprockets, transmission parts, recoil springs, roller assemblies, filters, seal kits, teeth and end bits, idlers, bushings, and link assemblies. The company is located at 180 4th Avenue West corner J. Teodoro Street in Caloocan City, Metro Manila and provides their email, telephone, and fax contact details.
The document discusses poor lifestyle choices such as lack of exercise, insufficient vegetable consumption, and inadequate sleep that can lead to health issues like diabetes, obesity, and depression. It notes that busy lifestyles, late night studying, and convenience of fast food can cause unhealthy habits. The document provides solutions like making a plan, setting goals, and educating oneself, as well as simple steps to improve like getting enough sleep, exercising daily, eating fruits and vegetables, and drinking water. In conclusion, it emphasizes the importance of managing time well and maintaining a healthy lifestyle for improved health and academic performance.
This short document promotes creating presentations using Haiku Deck, a tool for making slideshows. It encourages the reader to get started making their own Haiku Deck presentation and sharing it on SlideShare. In a single sentence, it pitches the idea of using Haiku Deck to easily create and publish online presentations.
Venkatesh has over 7 years of experience in project management. He has skills in project planning, requirements gathering, business analytics, quality management, and communication. He held project management roles at AGS Health, CSC India, and Temenos India where he managed software development projects, implemented PMO methodologies, and prepared project plans and reports. Currently seeking new opportunities to apply his experience in project delivery, process improvement, and people management.
The document discusses customer service standards for Island Buffet. It defines customer service and explains that the goal is to exceed customer expectations and ensure they are happy and return. Six common customer expectations are identified: friendliness, empathy, accuracy, professionalism, promptness and honesty. Examples are provided for each standard, such as greeting customers within 10 feet, asking questions to show empathy, giving correct information, focusing full attention on customers and being ready for all requests. The document concludes with defining "standard" and a question about any other questions.
Yellow and Co - Performance Partner : Parking and wayfinding consultants r5-2...Max Kordylas
This document discusses parking and wayfinding consulting services for high-traffic commercial properties like shopping malls. It outlines how optimizing parking layout, traffic flow, and signage can increase a property's parking capacity and reduce customers' time spent searching for spots. Customers may spend hours collectively searching when occupancy rates exceed 70%, negatively impacting their shopping experience. The consultant claims their services can help properties accept up to 25% more vehicles on busy days through improved parking management and rotation.
This short document promotes creating presentations using Haiku Deck on SlideShare. It encourages the reader to get started making their own Haiku Deck presentation by simply clicking the "GET STARTED" prompt. In just one sentence, it pitches presentation creation using Haiku Deck on SlideShare's platform.
Investigation on the dispersion of carbon nanotubes in solvent media effect o...Samuel Chuah
This document summarizes research investigating the effect of sonication energy and carbon nanotube (CNT) diameter on the dispersion of CNTs in solvent media. The researchers found that increasing sonication time (and thus energy) improved CNT dispersion, as observed visually and through UV-vis spectroscopy, up to around 45 minutes. However, transmission electron microscopy revealed that excessive sonication shortened CNT length. Additionally, CNTs with larger diameters (40-60 nm) dispersed more easily than those with smaller diameters (10-20 nm), according to UV-vis absorbance measurements. The study provides insights into understanding and optimizing the dispersion of CNTs for composite applications.
This document outlines a student project on carbon nanotube composites. It discusses synthesizing and fabricating carbon nanotube composites and investigating their properties. The student aims to study carbon nanotube characteristics, understand how geometry affects dispersion, and apply superior nanocarbon properties to construction. The literature review covers carbon nanotube properties, composite characteristics, and fabrication methods. Experiments investigate the effect of carbon nanotube geometry on dispersion through ultraviolet-visible spectroscopy, scanning electron microscopy, and analysis of diameter and length.
Career Opportunities in Indonesian Capital MarketFurqan Maudhudy
This presentation is published for educational and sharing purposes only by students that presenting in IASC Sharing Session on Saturday, 30 April 2016. The presenter named is Furqan Maudhudy (21yo). He is a final-year student, currently studying International Accounting Program at University of Syiah Kuala (Unsyiah) with a minor in Finance.
The document summarizes the internship experience of Samuel Chuah Teong Jyn at an engineering consultancy firm. Some of the key projects he participated in included the Mewah Datu Palm Oil Refinery Complex in Lahad Datu, Malaysia. At this site, he checked pile locations and capacities. He also gained experience with materials like gabions, grating, and formwork. The internship provided opportunities to apply engineering knowledge and gain experience with structural design, site visits, calculations, and software tools.
Yellow and Co - Performance Partner : Parking and wayfinding consultants r5-2...Max Kordylas
This document discusses parking and wayfinding consulting services for high-traffic commercial properties like shopping malls. It outlines how optimizing parking layout, traffic flow, and signage can increase a property's parking capacity and reduce customers' time spent searching for spots. Customers may spend hours collectively searching when occupancy rates exceed 70%, negatively impacting their shopping experience. The consultant claims their services can help properties accept up to 25% more vehicles on busy days through improved parking management and rotation.
This short document promotes creating presentations using Haiku Deck on SlideShare. It encourages the reader to get started making their own Haiku Deck presentation by simply clicking the "GET STARTED" prompt. In just one sentence, it pitches presentation creation using Haiku Deck on SlideShare's platform.
Investigation on the dispersion of carbon nanotubes in solvent media effect o...Samuel Chuah
This document summarizes research investigating the effect of sonication energy and carbon nanotube (CNT) diameter on the dispersion of CNTs in solvent media. The researchers found that increasing sonication time (and thus energy) improved CNT dispersion, as observed visually and through UV-vis spectroscopy, up to around 45 minutes. However, transmission electron microscopy revealed that excessive sonication shortened CNT length. Additionally, CNTs with larger diameters (40-60 nm) dispersed more easily than those with smaller diameters (10-20 nm), according to UV-vis absorbance measurements. The study provides insights into understanding and optimizing the dispersion of CNTs for composite applications.
This document outlines a student project on carbon nanotube composites. It discusses synthesizing and fabricating carbon nanotube composites and investigating their properties. The student aims to study carbon nanotube characteristics, understand how geometry affects dispersion, and apply superior nanocarbon properties to construction. The literature review covers carbon nanotube properties, composite characteristics, and fabrication methods. Experiments investigate the effect of carbon nanotube geometry on dispersion through ultraviolet-visible spectroscopy, scanning electron microscopy, and analysis of diameter and length.
Career Opportunities in Indonesian Capital MarketFurqan Maudhudy
This presentation is published for educational and sharing purposes only by students that presenting in IASC Sharing Session on Saturday, 30 April 2016. The presenter named is Furqan Maudhudy (21yo). He is a final-year student, currently studying International Accounting Program at University of Syiah Kuala (Unsyiah) with a minor in Finance.
The document summarizes the internship experience of Samuel Chuah Teong Jyn at an engineering consultancy firm. Some of the key projects he participated in included the Mewah Datu Palm Oil Refinery Complex in Lahad Datu, Malaysia. At this site, he checked pile locations and capacities. He also gained experience with materials like gabions, grating, and formwork. The internship provided opportunities to apply engineering knowledge and gain experience with structural design, site visits, calculations, and software tools.
7. LED 發光二極體原理:
LED ( Light-Emitting Diode ,簡稱 LED ,發光二極體)
將一乾電池的正電壓接到 P 型半導體,負電壓接到 N 型半導體,此種
P 型接正電壓, N 型接負電壓的電路接法,稱為順向偏壓。在一適當
的順向偏壓下,電子、電洞由乾電池分別注入 N 、 P 兩端後便會在 P
/ N 介面區域結合而發光,即電子由高能量狀態掉回低能量狀態與電
洞結合,將能量以光的形式釋放出來,外部的乾電池會不斷地由 N 側
注入(補充)電子,並由 P 側注入電洞,使得「電子、電洞結合而發
光」的動作持續進行,這就是發光二極體的發光原理。
8. LED 燈會因為二極晶圓製造過程中所添加的金屬元素不同、
成分比例不同,而發出不同波長的光、以波長在 470nm 發藍光
530nm 發綠光、 570nm 發黃光和 630nm 發紅光 ( 如下圖所示 ) 其中又
以
藍光與綠光價格較高,因為藍綠光的特殊金屬在晶圓磊晶需成長在藍寶
石上,故每顆藍綠光 LED 晶片都是由藍寶石製成。而 LED 依其亮度可
區
分為一般亮度的傳統 LED (主要由 GaP 、 GaAsP 等材料製成的
LED) ,高
亮度的 LED (主要由 AlGaAs 材料構成 ) 及超高亮度 LED(InGaAlP 、
InGaN 等材料構成 ) 。
LED 發光波長範圍