• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 2646
  • 1277
  • 667
  • 317
  • 291
  • 266
  • 252
  • 95
  • 93
  • 84
  • 70
  • 67
  • 55
  • 55
  • 55
  • Tagged with
  • 7614
  • 566
  • 554
  • 545
  • 530
  • 530
  • 490
  • 483
  • 463
  • 454
  • 450
  • 431
  • 422
  • 422
  • 398
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
341

Polyelectrolyte adsorption kinetics

Lang, Matthew H. 01 January 1994 (has links)
No description available.
342

Case study on teaching Mandarin learning-area in resource rooms in elementary school

Chang, Wen-tsan 10 July 2010 (has links)
Case study on teaching Mandarin learning-area in resource rooms in elementary school Abstract This study adopted case study approach to observe on-site two elementary resource room teachers in teaching Mandarin learning-area. Further, through class observation, formal/informal interviews, and the researcher¡¦s reflections, the teachers¡¦ practices of teaching methods, teaching content analysis, curriculum planning, teaching priority setting, preparation, and other teaching related factors were discussed. Data were analyzed according to the subjects of the content. The major findings are as follows: 1. In case A, the teacher had outstanding performance on game-oriented teaching. The interaction between the teacher and students was natural and energetic. The fun-way teaching method lighted up the class atmosphere and improved students¡¦ learning effect; children were willing to actively participate in the learning process when encouraged by incentive system. 2. In case B, the teacher effectively guided students to summarizing main points, often using spiral curriculum to connect one teaching subject to another. Children learned through down-to-earth teaching steps, and the learning results were presented through an item-by-item writing mode from the teacher. 3. The teacher of case A extended the teaching content with a broad variety and diversity while the teacher of case B wrapped up teaching highlights in every respect. Both teachers combined the textbooks with the information and knowledge of other fields, thereby effectively intensifying and broadening students¡¦ learning. Thus, they helped enrich the students¡¦ everyday knowledge and views. 4. The teacher of case A focused on the learning of Mandarin characters, phonetics, interpretation, phrase usage, and sentence making. The goal was to strengthen students¡¦ basic abilities. The teacher of case B stressed on cultivation of students¡¦ listening, speaking, reading, and writing skills. Both teachers followed their selected teaching curriculum programs in line with their pre-set teaching priorities. 5. Both teachers designed learning worksheets in conjunction with the teaching content to help students practice repeatedly in the learning process. They also individually taught and guided special students. Keywords: Resource room, Mandarin learning-area, case study
343

Sciaenids Habitat Survey in Coast Water by Passive Acoustic Method

Tu, Chang 27 July 2004 (has links)
There are many Sciaenid species found in coastal water of Taiwan, and most of them can generate sound in the spawning season. However due to overfishing, the populations of these high economic value fishes have been greatly decreased. To study and protect Sciaenid, whose habitat should be identified to set up seasonal protection zones. In this study, easy and low cost measure by using passive sonar is proposed to map the habitat in the field. Measurement and analysis of Sciaenid¡¦s sound were performed to investigate its acoustic characteristic, and frequency range was found to be 350 to 1,500 Hz. The statistical distribution of sound levels can be built up by enough field measurement, therefore source levels can be defined in this method. In the addition, the transmission loss of in site shallow water was studied to compute the real decaying factor (TL=n*logR) of the survey site. By using 3 sonobuoys, with known source level distribution and transmission loss, the distance of possible habitat can then be inverted. Through enough measurements, the map of coastal habitat of Sciaenid can be generated with efficiency and accuracy.
344

A Survey on the Composition and Distribution of Mangroves in Kaohsiung and Pingdong Area

yu, Feng-Jen 23 August 2004 (has links)
The mangrove swamp, a woody plant community, grows in the coastal marsh and tidal zone in the tropical and subtropical zones. The general definition of the community means that mangrove swamps are composed of the landholding things which grow in the tropical and subtropical tidal zones. The strict definition refers that mangrove swamps are composed of arbors or shrubs which grow between the flood mark and average flood mark in the tropical coast. This research aims at studying the composition and distribution of mangroves in Kaohsiung and Pingdong County. The multiple-plot method was used in the study. There are 28 plots sampled. Based on the environmental situation, the samples consisted 10 to 177 small plots which are 1x1 square meter in size. In each plot, the trees which have DBH over 1 centimeter are all measured. Their heights are estimated and recorded. Estimation of tree number in each area, density, and average DBH was made. Five species of mangrove trees are found. They are¡G Kandelia obovata Sheue, Liu¡®Yong, Rhizophora stylosa Griff ( Rhizophoraceae ), Avicennia marina (Forsk .) Vierh ( Verbenaceae ), Lumnitzera racemosa Willd ( Combretaceae ) and Excoecaria agallocha L ( Euphorbiaceae). Bruguiera gymnorhiza and Ceriops tagal in the early research have been disappeared. There are 125 woody and herbaceous species in the mangroves which belong to 36 families and 100 genera. The mangroves mainly grow in the conservation area in the river mouths of Kaohsiung and Pingdong Country. The remaining mangroves are scattered in the areas. The mangroves were previously flourished in Kaohsiung Harbor in the south of Taiwan, but, now,there are only 12 individuals of Avicennia marina and a single tree of Lumnitzera racemosa growing in the east of Qijin. The mangroves comprise mainly Avicennia marina. The southernmost distributional area of the species is Xinlong Village in Fanglian. A few individuals of Rhizophora stylosa grow near the mouth of the Houchin stream . Many individuals of Excoecaria agallocha are found near Dapengwan of Pingdong and some of them form pure stands along streams near coastal area. The curve of diameter and structural analyses of Avicennia stands is bell shape, which is possibly the results of human affection. Because of the development in the coast in past decades, mangroves have become decreased, and will be probably disappeared in the future, if they are not protected intensively.
345

A Choice Strategy of Investing The Economic & Technology Development Area in China

Wu, Shih-Chien 12 July 2005 (has links)
After the reformation and opening-up of the ecomonic system in Mainland China, the first special economic zone was established in 1979. Because the first special economic zone was very successful, the first series of Economic - Technological Development Areas were approved by the State Council in May, 1984. So far many companies have chosen the Technological Development Areas as their manufacturing bases. This study sampled 15 companies which had taken Technological Development Areas into their considerations. This study is based on three Development Areas:Tianjin Economic - Technological Development Area, Qingdao Economic - Technological Development Area, and Hangzhou Economic - Technological Development. Analytic Hierarchy Process (AHP) was used to analyze the selection strategies of Investing in the Economic & Technology Development Areas in China. According to the result of AHP¡Athe conclusions are as follows¡G 1.The most important factor in the second level is ¡§Government Management¡¨. 2.The top one criteria in the third level is ¡§the supply, quality, and price of local energy¡¨¡Athe second is ¡§ the convenience of obtaining materials¡¨¡Aand the third is ¡§the convenience of obtaining professional workers¡¨. 3.The best alternative is Hangzhou Economic - Technological Development Area.
346

Empirical Study of Taipower¡¦s Service Quality Gap and Satisfaction in Penghu area

Hsu, Ching-Kuei 15 June 2006 (has links)
This research is based on service quality extension model and SERVQUAL (Service Quality Scale), provided by Parasuraman, Zeithaml and Berry (1985,1988,1991), with 7 dimensions and 32 revised items related to service quality and overall satisfaction, to address the service quality gap of Taipower in Penghu area, and the differences in values of service quality level, perceived level and whole satisfaction level which are affected by different background variables, as well as service quality satisfaction level of various special services. In the end, this study proposes conclusion and suggestions to improve Taipower¡¦s management performance in Penghu area and stimulate enterprise on-going development. This study which sets up the target toward over 20 year-old consumes, the management level and employees of Taipower in Penghu area, is conducted with reference analysis and questionnaire survey. Conclusions are as follows: 1. On the average, in Penghu area, the service quality gap 2, 4, and 5 are significantly different, but gap 1, and 3 are no significantly difference. 2. Gap 6 ¡§the service quality delivered by employees¡§ and ¡§service quality perceived by customers¡¨ are significantly different. 3. On the average, in Penghu area, the management level and employees have significantly different perceptions of the whole service quality. 4. On the average, in Penghu area, the customers and local eletronics service providers have no significantly different perceptions of Taipower's service quality. 5. In Penghu area, the stations of users of Taipower have significantly difference perceptions of Taipower's service quality, the rest and different background variable all has no significantly difference. 6. In different ares, the satisfaction level of users of the different, special services adopted by Taipower is lower than 50%. 7. The satisfaction level from users in Penghu's surrounding islands, about Taipower's service quality, is higher than 50%. 8. Different interviewees have significantly different perceptions of Taipower's media PR and actual satisfaction degree. Based on conclusions mentioned above, this study provides suggestions as follows: 1. In system level, the unit is whole to combine, activate to organize effect and strengthen operation ability, as well as set up a complete audit and promotion system etc. 2. In management level, the company should use technology to summarize information, build communication and trust mechanism, responding a change, the labor altogether governs etc. 3. In execution level, the company should encourage life-long learning atmosphere, reinvigorate corporate thinking, and reactivate promotion system as well as reward giving etc. Key words: Penghu area, service quality, satisfaction level, PZB
347

A Study from the Perspective of Regionalism on China¡¦s Political and Economic Strategies Cooperate with the ASEAN Countries

Liang, Ming-hua 04 January 2007 (has links)
On account of China¡¦s dynamic economic growth, its relations with the Association of Southeast Asian Nations (ASEAN) states to its south have expanded rapidly in recent years, culminating in the conclusion of the landmark ¡§China-ASEAN Comprehensive Economic Cooperation Agreement¡¨ in 2002. Beyond trade and economic activities, China-ASEAN cooperation has been broadened to cover environment, science and technology, non-traditional security areas and related legal issues. Thus, China¡¦s relations with ASEAN have reached a new era where the two sides have established an economic, political and legal framework for their comprehensive cooperation. Of course, economic cooperation is most important in China-ASEAN relations. The most significant of the initiatives, in terms of members, is the China¡VASEAN Free Trade Area now under negotiation and will be established in 2010. If agreement is reached, this will be the world¡¦s biggest free trade area, encompassing 2 billion people, a collective GDP of almost US$2 trillion, and intra-regional trade of US$1.2 trillion. On the political aspect, China succeeded by means of the bilateral cooperation in economy and trade reached to sign the agreement of ¡§on Strategic Partnership for Peace and Prosperity¡¨ and ¡§Declaration on the Conduct of Parties in the South China Sea¡¨. China also accessed ¡§Treaty of Amity and Cooperation in Southeast Asia¡¨ in 2003. These movements want to eliminate the ¡§China threaten¡¨ concepts which exist in the ASEAN countries. China, however, needs stable international environment to expand its economy. The aim of this dissertation is to examine the China¡¦s roles and strategies in the process of forming a new Asian regionalism. Currently, Ease Asia is witnessing the emergence of a few trade blocs and many ambitious projects implying closer integration in the region. According to the neo-realist perspective, regionalism is developing more full in those areas of the word where there is a local hegemonic power that is able to create and maintain regional institution. China to make use of regional hegemony offers the public goods stabilizing and developing its relations with ASEAN countries. On the basis of friendly neighboring diplomacy and peaceful rise, China and ASEAN will create free trade area, cooperate to achieve various kinds of sub-region developing, and initiate security mechanism (include the non-traditional security). China would like to build a ¡§China-ASEAN regionalism¡¨ by means of comprehensive cooperation in the future.
348

Action Research: The Application of Adventure Education in Learning Area of Integrated Activities in Junior High Schools

Hui, Kang-shu 24 July 2007 (has links)
Action Research: The Application of Adventure Education in Learning Area of Integrated Activities in Junior High Schools Abstract The current research was conducted based on a self -constructed curriculum, The Lesson Plans of Application of Adventure Educationin Learning Area of Integrated Activities, on 37 (male = 20, female = 17) seventh graders for twelve weeks (a total of 24 formal sessions). One orientation and one review session were also conducted prior to and after the formal curriculum. The goals of the current action research are six-folded: (a) to design an age-appropriate Adventure Educationin curriculum in the application of Learning Area of Integrated Activities; (b) to examine how this curriculum may help students establish interpersonal connection and reach consensus among each other within a short time; (c) to investigate how this curriculum may help students understand and affirm self as well as appreciate others; (d) to explore how this curriculum may improve students¡¦ teamwork and problem-solving capacities; (e) to study how this curriculum may help students discover the mystery of Nature and subsequently elicit the emotions and behaviors of cherishing Nature; and (f) to provide concrete recommendations to the implementation of Adventure Educationin curriculum in junior high schools. In addition to on-site observation, focus interviews were conducted on the students, lead teachers, subject teachers, and co-investigators. Information gathered from the observation notes, interview transcripts, reflection diary, student posters, self-portrait, and learning sheets was analyzed and interpreted. The research findings confirmed the six goals listed above. Specifically, the results revealed that: (a) it is feasible to design an age-appropriate Adventure Educationin curriculum in the application of Learning Area of Integrated Activities through the indicators of Learning Area and the principles of experiential learning; (b) the students in the current study established mutual understanding and interpersonal connection, discussed group-oriented ground rules, as well as reached consensus in a short time; (c) the students in the current study enhanced their self-understanding, active listening, as well as a sense of self-appreciation and appreciation to others; (d) the students in the current study developed a sense of teamwork, trust, and safety as well as positive problem-solving capabilities; (e) the students in the current study discovered the mystery of Nature, yielded emotions and behaviors of cherishing Nature, and learned how to create joy through the natural environment; and (f) the students in the current study learned how to apply what they have learned in the curriculum to daily life. At last, recommendations and implications regarding application of Adventure Educationin curriculum in junior high school settings are discussed. Key Word¡GAdventure Education¡BIntegrated Activities Learning Area
349

A Area-Saving ROM Decoder and Design of Network Interface Controller

Chen, Ying-Pei 26 June 2000 (has links)
The thesis is composed of two different IC design projects, which are briefly introduced as follows. The first topic is an area-saving decoder structure for ROMs. In this part of work, we propose a novel 3-dimensional decoding method. The stages of address decoding are drastically shortened. Hence, the delay is reduced as well as the power consumption. The overall transistor count and the delay are thoroughly derived. A physical 256x8 ROM using the proposed decoder is fabricated by UMC 0.5 mm 2P2M CMOS technology. The second part is the NIC (Network Interface Controller) design. The NIC transfers data frames from and to transmitter and receiver buffers in the host memory, respectively. Meanwhile, the transferred data must also comply with the IEEE 802.3 standard. The design is compatible with CSMA/CD type Local Area Network, including 10/100 Mbps Ethernet.
350

Gait Algorithm for Modular 4+2 Legs Walking Machines

Huang, Chi-Yu 09 July 2001 (has links)
Walking machines may not be more common or faster than the transportations with wheels. It can¡¦t be ignored in the occasions of unknown terrain. This paper is going to discuss about how a walking machine get faster and be static stable. When the quadrupeds walk toward, the wide won¡¦t be changed. So that, longitudinal stability margin can take the place of stability margin to simplify gait problems. Meanwhile we can get the optimal gait. In the past researches, there is only one kind of walking type will be discussed in one time. This is because there are not so many relationships between different kinds of movement. If we take one step ahead to discuss the optimal gait, it will be more difficult. If there was a way to get into optimal gait from random initial position, we can connect one movement with the other. The velocity was constrained while the quadruped modal has had been made since 1968 by McGhee. We will try to change the working area to approve the performance. As to the researches of multi-legs walking machine, most of them talk about quadrupeds and hexapods. it will be less if the more legs we are talked about. To maintain stable tread, a walking machine request four legs at least. We can regard a quadruped as a unit, and divide a multi-leg working machine in to many quadrupeds. By using the method of quadruped analysis, we can simplify multi-legs gait algorithm problems.

Page generated in 0.0427 seconds