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Tzeng, Shwu-hwa, and 曾淑華(釋宗慈). "none－none." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/gw8abv.
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Chen, Mei-hui, and 陳美蕙. "none－none." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/23726683575547351385.
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Hsieh, Pei-Jung, and 謝佩容. "none－none." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/58619697925700286033.
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Yang-shasha and 楊莎莎. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/56446858543508760847.
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碩士<br>國立中央大學<br>人力資源管理研究所<br>105<br>A good performance management system is an important tool to ensure the achievement of organizational goals. An effective performance management system can not only connect individuals, departments and organizations, but also enable enterprises to improve their organizational capabilities. This study will analyze the performance management system of the A group of the case company, and get feedback on the performance management system from employees in different positions, with different years of work and education levels. After collecting and compiling the
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Wu, Ming Hao, and 吳明豪. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/38763685997182430708.
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碩士<br>國立中央大學<br>高階主管企管碩士班<br>105<br>In recent years, computers, communications equipment and electronic products developed rapidly and sold a lot. These mobile devices require the battery to supply energy to keep the operation. With the increase in
manufacturing costs and market demand, the production base has gradually shifted to China with lower human resources costs where are of the same kind and the same language with Taiwan. At the same time, the government's support, foreign investment, technology transfer and the maturity of the internal market are directly or indirectly promote the a
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Wu, Ping-Yao, and 吳炳瑤. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/54651802112555812246.
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碩士<br>國立中央大學<br>人力資源管理研究所在職專班<br>105<br>The purpose of this study is to explore the factors that influence the workers' horizontal movement, and to explore the impact of the recent career movement of the workers by the situation of non-border career preference and pre-employment movement. The concept of mental mobility and physical mobility has an impact on every worker, and its focus is on mobility and unpredictability among enterprises (Arthur & Rousseau, 1996b; Sullivan, Carden, & Martin, 1998). Secondly, in the theory of path dependence, it is also pointed out that the early experiences of
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Fei, Pao-Ching, and 費保清. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/78043185151830001994.
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碩士<br>國立中央大學<br>人力資源管理研究所<br>105<br>The purpose of this study is to explore how physical and mental health services and welfare practices provided by enterprises can effectively improve employee satisfaction. The practices include many EAP programs as well as economic, work hour, recreational, and facilities practices. This study also explore the impact of these services and practices on job satisfaction through statistical analysis.
The data is secondary data from Academic Research Database (SRDA) of the Central Research Institute's Survey Center. Total of 4,082 samples are from the surve
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Liao, Wen-Yu, and 廖文佑. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/76338064759691942669.
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碩士<br>國立中央大學<br>土木工程學系<br>105<br>The barriers of facilities which dispose wastes with low radioactivity are mainly composed of concrete. But unlike the normal purpose of concrete, the barrier concrete is expected to be used for more than several hundred years.This study measures long-period experimental data to get better estimated results based on previous studies by using mixes HIC-C and HIC-M, and mixes C and M. Mixes HIC-C and HIC-M were prepared and revised from AASHTO T260 test method in 2010. So far, the experiments have been ongoing and data collected for six years. On the other hand,
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HSIEH, HSIAO-HSIANG, and 謝孝享. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/51905675790839024289.
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碩士<br>國立中央大學<br>大氣科學學系<br>105<br>In recent years, people pay more and more attention to air pollution, which is particularly enthusiastic discussion of particles matter (PM). PM spread everywhere in our daily life. Sea salt, exhaust gas emissions from industries, vehicle emissions and raised dust, are the main reasons of the formation of PM. PM has high environmental variability. It is far less enough to rely on the government set up by the environmental monitoring network. Because of the limitation of the expensive costs of the instruments and the difficulties of the setting of the stations,
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Zhang, Jing-Yue, and 張瀞月. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/15991415287121226645.
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碩士<br>國立中央大學<br>化學學系<br>105<br>Alkyl p-hydroxybenzoate, also known as parabens, have been added in personal care products as preservatives for many years. Because of its low prices, odorless and difficult hardening, they are used widely. However, the studies show that parabens may contain estrogen activity and carcinogen activity, and they are potential endocrine disruptors. Moreover, complicated environmental matrix leads to lower concentration of parabens. Therefore, developing a highly selective method to extract parabens from environmental water samples is very important.
Molecularly imp
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Zhou, Hui-Ting, and 周惠婷. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/71699751393774122800.
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碩士<br>國立中央大學<br>化學學系<br>105<br>Alkyl p-hydroxybenzoates, also known as parabens, was added in cosmetic, pharmaceutical and food as preservative since the 20th century. Because of its odorless, low prices and difficult hardening, they have widely been used by various applications. Recent studies have concluded that parabens might disrupt the endocrine system, affect funtions of human reproductive systems, and are classified as a potential endocrine disrupter. Therefore, it is important to develop a method to analyze paranbens in human urine.
This study demonstrates an efficient, less solven
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Guo, Sheng-RU, and 郭勝儒. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/02196946011527866379.
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碩士<br>國立中央大學<br>化學學系<br>105<br>Vinyl chloride is the monomer of polyvinyl chloride (PVC) and is commonly addressed as vinyl chloride monomer (VCM) in the relevant industries. VCM is both liver-toxic and carcinogenic, and with its precursor of 1, 2-dichloroethane (EDC), are produced in large amounts in Taiwan. For instance, the annual production of VCM is greater than 1.25 million tons from the top two producers.
Because of the high volatility of both VCM and EDC, fugitive emissions from leaky components of flanges, gaskets, pumps, pipelines, etc. are widespread. Monitoring of these two compoun
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Hsu, Po-Yu, and 徐伯毓. "none." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/70126744668821025236.
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碩士<br>國立中央大學<br>企業管理學系<br>105<br>As the population aging in the world, gerontology-related researches gradually increases and almost focuses on specific fields. The objective of the study was to conduct a descriptive and trend analysis, network analysis and text mining on gerontology-related researches published after 2000, and provide a breadth of understanding from the development of gerontology. The data used in this study were collected from the journal papers listed in Social Sciences Citation Index. Furthermore, the studies which its times cited rates were ranked as top 200 would be trea
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Kang, Ya-Wen, and 康雅雯. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/97218303447751683322.
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碩士<br>國立中央大學<br>財務金融學系在職專班<br>105<br>The most stressful work, Whether it is on Wall Street or in the entire financial services industry are far ahead, But the nature of the stress varies with the level. While the bully who think that such as superior,Always above the pride of others,so that many vulnerable, kind people are no way to be insulting,and this situation is not only occurred in the mind is not yet mature campus, and even have entered the community for many years of office workers are also possible Suffered a variety of different forms of bullying.
Taiwan researchers have little f
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Tu, Kuo-Lun, and 杜國綸. "None." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/19654512607621704741.
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碩士<br>國立中央大學<br>資訊工程學系在職專班<br>105<br>Data-Matrix two-dimensional barcodes present extensive information within a compact area. Data-Matrix barcodes have been widely used in automobile, aerospace, semiconductor,
and electronic components. However, the Data Matrix barcode readers currently available on the market use multiple image preprocessing methods for identification of barcodes that appear fuzzy, unevenly lit, distorted, and otherwise unrecognizable; with such systems, failed
identification often needlessly wastes computational time. Poor image quality or a large amount of unnecessary
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Chang, Che-Wei, and 張哲偉. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/39401885748022166582.
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碩士<br>國立中央大學<br>機械工程學系<br>105<br>The demand for Electric Discharge Machining(EDM) is increasing year by year in the industry. Because of EDM can effectively solve the problem of processing materials such as high hardness and heat resistance. However, EDM will bring about defects in surface defects and poor surface quality that still can not find an effective way to solve in the industry.
Previous studies have found that processing will get a better surface roughness when the EDM fluid in a specific turbidity. Therefore, in this paper, we design a closed loop system that use of optical turb
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Lu, Dong-Han, and 呂東翰. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/28050356056646596855.
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碩士<br>國立中央大學<br>機械工程學系<br>105<br>Recently, research of active magnetic bearings has been widely applied in industry. It’s non-contact characteristic of magnetic levitation technology without physical friction and abrasion. Therefore, active magnetic bearings have been widely implemented, such as engineering industry and biomedical application. For example, turbine engine [1], vacuum pump[2], high-speed spindle[3], and so on.
Rotating mechanical umbalance causes severe system vibration. The synchronous vibration caused by eccentricity of the rotor is the major excitation source, when rotat
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Wang, Yi-Hsuan, and 王以萱. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/33057877208864952395.
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碩士<br>國立中央大學<br>高階主管企管碩士班<br>105<br>This paper aims to explore and analyze the competition strategy of the notebook computer industry in Taiwan, taking C Company as a case and combining with the characteristics of the overall market demand of the mainland, and discussing the status quo of the industry in which the company performs the notebook computer marketing activities on the mainland, the internal conditions and the external Competitive environment and so on. Using SWOT analysis and 4P marketing theory, C company to take the marketing strategy (such as products, prices, access, promotion)
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Chiu, Jung-Ching, and 邱榮慶. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/00527707096858223920.
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碩士<br>國立中央大學<br>光機電工程研究所<br>105<br>This thesis is mainly concerned with the implementation of control algorithm the active magnetic bearing. In the development of hardware part, we use the commercial active magnetic bearing platform, and design a robustness Proportional- Derivative controller. Then the rotor is levitated and run by the PD controller. When the operation speed reaches the target, we implement the control algorithm to eliminate the centrifugal force, that is, the generalize notch filter compensator is used to the control system. Finally we eliminate the centrifugal force, and rea
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Wang, Ming-Ze, and 王銘澤. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/48079776711356317949.
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碩士<br>國立中央大學<br>土木工程學系<br>105<br>This paper is to investigate the resource’s reuse technelogy aiming at the waste produced by the domestic solid biofuel boiler plants and burning solid bioful factories. First, it will focus on the resource recycling and research areas according to the norms of public works and the national CNS norms. Then, five types of biomass and waste fuel which contain lump coal , waste wood , wood pellets , palm shell , waste mushroom packages…etc. are selected according to the boiler fuel classfication . After that, based on the solid biofuel fly ash and solid biofuel bo
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Hu, Chia-Ming, and 胡家銘. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/93225162053586283691.
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碩士<br>國立中央大學<br>土木工程學系<br>105<br>Due to the wide range of concrete in radioactive waste disposal sites, the use of cement materials is very important, especially when the groundwater penetrates into the concrete. The Ordinary Portland Cement (OPC) releases the pore fluids of the pH 12-13. In the high pH environment, the pore water leakage after the encounter buffer material, it will make the buffer material with the expansion of the main components of montmorillonite dissolution rate which increases the pH. Therefore, the use of low-alkali cement material after the pozzolanic reaction, the con
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CHUEH, LI-EN, and 闕立恩. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/85393838939631376715.
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碩士<br>國立中央大學<br>土木工程學系<br>105<br>Slag fine aggregates are by-products of electric arc furnace steelmaking. After the slag fine aggregates are pre-treated, they can replace natural fine aggregates in some cases. In this study, the researcher used slag aggregates, water quenched stove powder, sodium hydroxide solution, and sodium silicate solution (water glass) to activate the slag cementation activity. The objective was to explore the effects that the alkali activated furnace powder cementing material have on the new mix and the hardening properties under different alkali equivalent volumes, al
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Chen, Wen-Jou, and 陳文柔. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/82467449579606489403.
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碩士<br>國立中央大學<br>大氣科學學系<br>105<br>Rapid-Intensification (RI) typhoon forecast remains a critical challenge, it usually causes severe damage all at once. According to the previous research, a critical mechanism for reducing rapid-intensifying typhoons was “the positive feedback” occurred in or near the eyewall region. That is, for low-level convergence enhances upward flow motion, latent heat then releases to surroundings causing a warm-core in mid-upper-level. Warm-core structure helps to maintain typhoon intensity; then divergence in upper level pulls lower flow to transport updraft at the sam
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Chaung, Qun-Ling, and 莊坤霖. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/87355364429857834368.
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碩士<br>國立中央大學<br>化學學系<br>105<br>In this study, three new hydrophilic monomers were synthesized and a new series of anion exchange membranes were derived from the last monomer. First, NB-DCImI was synthesized. However, due to the steric hindrance in the monomer structure, only one imidazole group can be quaternized. The second methylation of imidazole group was not successful. Secondly, new hydrophilic monomer BCIm-COH bearing two imidazole groups was successfully synthesized. However, we found the ether-linking hydrophilic monomer do not possess good chemical stability in the presence of NaOH/D
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Huang, Chien-Jung, and 黃健榮. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/13049551609887730846.
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碩士<br>國立中央大學<br>資訊工程學系在職專班<br>105<br>In order to shorten response time without compromising the confidentiality of private data, fog calculation or marginal computing has become a new research topic, in the post-cloud era, the traditional network of objects with cloud computing being the core will face difficulties in meeting the standard of the real-time terminal services with limited bandwidth. This study designed a network of objects gateway with three MCU cores, structured as a master–slave microcontroller system. The three cores are the communication management engines, and uses a MQTT C
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Lin, Wei-Han, and 林緯瀚. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/19962747170812670591.
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碩士<br>國立中央大學<br>機械工程學系<br>105<br>In this study, Ti-6Al-4V titanium alloy weldments with butt joint were produced by electron beam welding (EB welding). Several tests including microhardness, tensile, constant amplitude fatigue and variable amplitude fatigue were performed. The experimental S-N curves were compared to the fatigue design curves recommended by the International Institute of Welding, American Welding Society. Two mean stress correction methods, Goodman and Gerber, were evaluated.
For electron beam welding joints, the highest microhardness occured in the fusion zone. Both the broke
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Dai, Ming-Shen, and 戴銘伸. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/76068815013442353753.
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碩士<br>國立中央大學<br>機械工程學系<br>105<br>In order to satisfy the needs of electric energy, the capacity of the wind turbine is getting larger. It resulted in a larger weight and a heavier operational load for the wind turbine. The cost will increase and the life cycle will decrease if the wind turbine is operated with a heavy load.
This study investigated the stresses of a Vestas V80-2.0MW wind turbine tower. The author applied SolidWorks software to rebuild the V80 wind turbine tower model. Then, the flow field analysis of wind turbine model was carried out by using the Fluent software. We simulate t
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Yeh, Jih-Hung, and 葉日宏. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/45615914523583187080.
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碩士<br>國立中央大學<br>環境工程研究所<br>105<br>Hazard management is the key factor in accident prevention. And hazardanalysis is the first step of hazard management. To implement effective hazard management, manufacturing processes related personnel and activities must be first taken into consideration followed by evaluation of the effectiveness of management approach.. Laws and regulations or most of the guidelines mention the importance of hazard analysis and management system. But there is no reliable and feasible methodology for hazard analysis and management prior to the construction and operation of
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Li, Kun-Che, and 李昆哲. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/89000879974067396635.
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碩士<br>國立中央大學<br>土木工程學系<br>105<br>Dip slope sliding is the most occurrence of slope disaster in Taiwan and the geology of Taiwan mostly consists of sedimentary rocks like sandstone and shale, both are very weak rocks. In recent years, the rainfall intensity enhancement and the influence time lengthened, had the severe influence on the geology of Taiwan. For instance, water easily seeps through aperture of rocks and reduces rock strength, or increases the pore water pressure thus decrease the shear resistance of soil. Due to above reasons, slope easily to produce slide and mudslide.
In this stud
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Liao, Ming-Chieh, and 廖明傑. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/75744791667725602928.
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碩士<br>國立中央大學<br>土木工程學系<br>105<br>Because the rock mass is often accompanied by the joint, the overall shear strength of the rock mass is affected not only by the strength of the material itself, but also by the existence of the joint. The influence of the existence of rock joints on the shear strength of rock mass has been proposed by Barton to estimate the shear strength of rock mass under the influence of joint. Where the joint surface roughness is an important influencing factor, and the joint roughness coefficient (JRC) is usually used to represent the roughness of the section.
Barton (197
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Chou, Mei-Hsiu, and 周美秀. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/44331598971122079161.
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碩士<br>國立中央大學<br>化學工程與材料工程學系<br>105<br>We have developed a transparent, easy cleaning and durable hydrophobic coating for the glass surface. Such surface is very desirable for touch screens that have become an essential part of our daily life. For practical applications, the coatings should also be strongly adhered to the substrate and should resist at least a few thousand cycles of steel-wool scratching without losing its hydrophobicity.
Previous easy-cleaning surface relies on the hydrophobic behavior of poly-fluorocarbon coupling agents, which will be banned in European Union nations soon. M
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TING, KAO YU, and 高雨婷. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/82641800349251692588.
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碩士<br>國立中央大學<br>化學學系<br>105<br>This article is divided into two parts：
The first part：
There are hundreds of billion tons of plant wastes generated every year. Scientists tried to separeate and refine to make those wastes more benefit. Lignin is one part of lignocellulose and consisted of aromatics. We expected to find out a effective way to cleave lignin into many different small molecules and then separate them very well.
In order to clarify the mechanism of lignin cleavage and to find out the better conditions, many scientists using lignin model compounds in the cleavage reaction at first,
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Tseng, Tsung-En, and 曾從恩. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/48751617563980747128.
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碩士<br>國立中央大學<br>太空科學研究所<br>105<br>CIP (Compact Ionosphere Probe) is the only one science payloads on the INSPIRESat-1. The purpose for CIP is measuring ionophere parameters. Including the ion concentrations、ion velocity、ion temperature and electron temperature. The CIP is seted up in the 3U cubesat. Due to the space limit, it have to minimum the sensor volume into 1U space. In the CIP interior, it is assembled by the three PCBs. The thesis is focus on the development and design of the third PCB. The third PCB is called Power Management Unit (PMU) . The main purpose of the PMU is to let CIP nor
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Liao, Chao-Wei, and 廖朝偉. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/28704840898438288998.
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碩士<br>國立中央大學<br>光電科學與工程學系<br>105<br>The principal of design optical telescope will be introduced in this dissertation. CODE V optical software is used for helping us to design eyepiece lens and objective lens, both of lens are combined into a telescope by using the positive focus system of the Kepler telescope, and the Roof-Pechan Prism is added to the telescope system, reducing the overall length of the telescope by 11.56%.
In the prism design, Prior to the plate glass to simulate the optical path length in the prism, moreover it uses plate glass and objective lens to optimized at the same ti
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Chien, Wei-Hsien, and 簡維憲. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/05846968228380958979.
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碩士<br>國立中央大學<br>光電科學與工程學系<br>105<br>This paper focuses on the three-band surveillance lens design, which can operate in the near infrared band to obtain a clear image quality, and the image sensor used can sense the visible light band to near infrared light band. This lens can be used at any time, any weather and any environment, as the surveillance of visible light to near infrared light band.
In this paper, the lens design analysis is mainly for visible light to near infrared light band, visible light band and near infrared light band. By applying different image sensors to design a lens
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Yi-ChengChang and 張毅政. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/50729562402790917871.
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碩士<br>國立中央大學<br>光電科學與工程學系<br>105<br>The design of portable microscope was introduced in this thesis. There are three parts in this design; an objective lens, a prism, and an eyepiece. Finally, combining objective lens, pechan prism and eyepiece to form an optical system.
The objective lens’s magnification and NA are abbreviated as 10X/0.25. The selection of Prism is Pechan prism. The eyepiece magnification is 20X. By lens and prism combining, we can design a 200X microscope system. It can be operated individually to observe the object.
The objective lens and the prism are built in the same opt
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Shen, Yu-Sheng, and 沈裕盛. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/84751926732099850862.
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碩士<br>國立中央大學<br>照明與顯示科技研究所<br>105<br>I propose designing a 60 mm single hole telescope with the capability of 60X magnification power. The telescope system consitsts of a object system and a eyepiece system. Both systems are to be designed separately and assembled together afterwards. The maximum incident angle, focal length, entrance pupil diameter of the object system is 0.55 degree a half of FOV, 350 mm, and 60 mm respectively. The maximum exit half angle of view, focal length, exit pupil diameter, and eye relief, and of the eyepiece system are 29.941 degree, 5.833333 mm, 1 mm, and 14.69525
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Chen, Yi-Jun, and 陳怡君. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/09058192105528075667.
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碩士<br>國立中央大學<br>化學工程與材料工程學系<br>105<br>2-phenylethanol is widely used in the cosmetics and perfumery for fragrance modification with rose-like fragrance. Every year about 10000 tons of 2-phenylethanol are produced worldwide, the most of which through chemical synthesis. The chemical synthesis of 2-phenylethanol can be done by Friedel-Craft reaction. Though inexpensive, these processes are disadvantaged by low selectivity for the desired product and accompanied by the formation of toxic by-products. This makes the chemical production of 2-phenylethanol detrimental to the environment and health.
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Yeh, Yi-fen, and 葉怡芬. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/46191974363766888872.
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碩士<br>國立中央大學<br>化學工程與材料工程學系<br>105<br>In oriental culture, mushrooms has been used as health foods and home remedies for thousands of years. In several edible mushrooms, Agaricus blazei Murill was considered one of the most important edible and medicinal mushrooms native from Brazei. We also called it Agaricus brasiliensis. Many studies had proved that the Agaricus blazei Murill have strong immunomodulatory and health care functions, such as immune-enhancement, oxidation resistance, lower blood lipids et al. Recently, Agaricus blazei Murill is fascinating natural source for obtaining bioactive
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Lo, Yu-Cheng, and 羅雨承. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/12420830074422676253.
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碩士<br>國立中央大學<br>化學工程與材料工程學系<br>105<br>In today's society, lactobionic acid is a kind of organic acid which is widely used in human life, it finds extensive applications in the fields of food, cosmetics, pharmaceuticals and biomedicine. It could be used in so many different fields, mainly because of its excellent biocompatible, biodegradable and antioxidant properties. Most of the current methods of producing lactobionic acid are produced by chemical synthesis, but the synthesis processes use harmful metal catalysts. However, in recent years, a method for producing lactobionic acid has been dis
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Yang, Cheng-Lun, and 楊政倫. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/39464116193414864781.
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碩士<br>國立中央大學<br>機械工程學系<br>105<br>Industry for efficiency, accuracy requirements are increasing. For the high-speed operation mechanism, the development of magnetic bearing become an irreplaceable trend. Compared with traditional bearing, the friction between the rotor and the bearing is almost zero, won’t cause energy loss and temperature increase, not only greatly improve the life of the machine, and for the speed limit is higher than the traditional bearing.
The vibration caused by the unbalance of the rotor is the main excitation source of the high speed operation of the magnetic beari
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Lin, Yen-Yu, and 林彥瑜. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/04755968798849705484.
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碩士<br>國立中央大學<br>光電科學與工程學系<br>105<br>This thesis presents three designs, including 3X, 6X, 9X periscope type zoom lens for eight mega pixels mobile phone cameras. A Periscope type lens system namely put a right angle prism in front of the lens system, which makes optical axis tilt 90 dgrees. If the thickenss of the prism and the aperture of lens in periscope type zoom lens are both smaller than the mechanism thinkenss of a mobile phone, periscope type zoom lens will be able to set inside a mobile phone. The preliminary specifications of 3X zoom lens design are as follows: a focal length range o
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SYU, YING-SHUN, and 徐英舜. "NONE." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/08096351800940974075.
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碩士<br>國立中央大學<br>光電科學與工程學系<br>105<br>This paper proposed a ultra-wide lens design, which has 5 Mega pixel, and compose of seven glass, the focal length of the lens is 1.649 mm, the total length is 23.235 mm, F/# is 2.1, the maximum of half field-of-view is 80 degree. In the lens optimization we maintain the system's focal length of the same conditions, While eliminating the design of chromatic aberration and athermal dissipation.
Consider the wide-angle lens in the large viewing area of the image will be severely compressed features, The traditional optical distortion assessment method was
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Zeng, Yi-De, and 曾議德. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/68770144984578224462.
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碩士<br>國立中央大學<br>土木工程學系<br>105<br>Taiwan is located at the junction of the Eurasian plate and the Philippine Sea plate. Engineering design often takes into account the effects of earthquakes. In recent years, such as Taiwan Chi-Chi earthquake, China Wenchuan earthquake, Japan Fukushima earthquake and other active faults caused serious damage to life and property. In order to explore the effect of fault on the surface and underground structure, physical tests were usually carried out by Centrifuges in the past. However, physical test is time-consuming and expensive. Therefore, many studies consi
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Hsieh, Jheng-Yu, and 謝政育. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/11653381861746326312.
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碩士<br>國立中央大學<br>土木工程學系<br>105<br>Taiwan is an island where located at the Circum-Pacific Seismic Zone. In addition, the Philippine Sea Plate is pushed underneath the Eurasian Plate due to special geographical location. These may be attributed to the main reasons that have formed Taiwan as a mountainous country with complicated geological conditions. Moreover, the torrential rainfall accompanying typhoons frequently causes slope failures such as landslides and debris flows. The landslide of the dip slopes mainly occurs at the sedimentary rock layer of mountains and hills as observed at the west
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lee, tse-chen, and 李則辰. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/51162175137959683488.
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碩士<br>國立中央大學<br>土木工程學系<br>105<br>This study is to investigate the surface failure behavior and the underlying soil mechanics mechanism in the vicinity of normal fault. Near the fault can be observed in the vicinity of the fault caused by a large number of soil deformation, but the mechanical changes under the surface can not be seen with the naked eye
In this study, PFC2D was used to simulate, because PFC (Particle flow code) was simulated by particle flow, and the mechanical behavior was more close to the experimental sandbox. The measure circle was discussed in the upper and lower sides of t
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Pan, Jun-Wei, and 潘俊瑋. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/28470887650446961041.
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碩士<br>國立中央大學<br>大氣科學學系<br>105<br>In this study, the McGill Algorithm for Precipitation nowcasting using Lagrangian Extrapolation (MAPLE) system developed by McGill University is used to evaluate the very short-term forecast of precipitation in Taiwan. There are two procedures in MAPLE system. First, the motion field of precipitation is determined by Variational Echo Tracking (VET) technique. Second, a radar map is advected by means of a semi-Lagrangian backward advection scheme to be a precipitation forecast.
By using composite radar data from Central Weather Bureau (CWB), three real cases are
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Huang, Jyun-Jhe, and 黃俊哲. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/50233898869887048703.
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碩士<br>國立中央大學<br>化學工程與材料工程學系<br>105<br>In the semiconductor industry, low thermal budget is a critical topic. A low thermal budget is achieved by using a polymer substrate, a molecular machine, and 3D integration technology, which are associated with a low glass transition point, low decomposition temperature, and severe warpage, respectively. In conventional assembling technology, low-melting-point solder is an extremely economical solution for a low thermal budget. However, low-melting-point solder used in industry cannot solve the aforementioned problems. According to two eutectic points in
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Li, Zheng-Xian, and 李政憲. "none." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/00934537718621638899.
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碩士<br>國立中央大學<br>化學工程與材料工程學系<br>105<br>Electrospinning is a scalable process for the preparation of flexible zirconia nanofibrous web useful as a hot gas filter. Composite fibers are formed under polarized electric field from a solution containing zirconium salt and a hydrophilic polymer (PVP) and are later transformed into zirconia via calcination. In this study, the precursor employed was a transparent aqueous sol of zirconia nanocrystals modified with acetate ligand. The surface tension and the conductivity of the precursor were adjusted by the addition of acetic acid and water. The viscosit
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Ting-Shu, Yang, and 楊庭菽. "none." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/27269683286152572938.
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碩士<br>國立中央大學<br>化學學系<br>105<br>The photovoltical performance of a P-type conjugated polymer can be tuned by changing the molecular structure and weight. In this study, 8-bis(5-ethylhexyl)thiophen-2-yl)-2,6-di(thiophen-2-yl)benzo[1,2-b:4,5-b'] dithiophene was used as a donor unit and bromo-2,3-bis(4-(hexyloxy) phenyl)pyrido[3,4-b]pyrazine was used as an acceptor to construct the copolymer P11. Furthermore, an electron-withdrawing alkylthio chain was attached on the donor to form P12, or adding electron-withdrawing fluorine atoms on the acceptor to prepare P14. P15 has alkylthio chain on the don