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Journal articles on the topic "GWHD"

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Abel, R. J. R., Norman J. Finizio, and Malcolm Greig. "(3,6) GWhD(v)—existence results." Discrete Mathematics 261, no. 1-3 (January 2003): 3–26. http://dx.doi.org/10.1016/s0012-365x(02)00457-0.

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Abel, R. Julian R., Norman J. Finizio, Malcolm Greig, and Luis B. Morales. "Existence of (2, 8) GWhD(v) and (4, 8) GWhD(v) with $${v \equiv 0,1 (mod 8)}$$." Designs, Codes and Cryptography 51, no. 1 (November 6, 2008): 79–97. http://dx.doi.org/10.1007/s10623-008-9245-z.

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Ito, Ryuji, Hajime Nobuhara, and Shigeru Kato. "Transfer Learning Method for Object Detection Model Using Genetic Algorithm." Journal of Advanced Computational Intelligence and Intelligent Informatics 26, no. 5 (September 20, 2022): 776–83. http://dx.doi.org/10.20965/jaciii.2022.p0776.

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This paper proposes a transfer learning method for an object detection model using a genetic algorithm to solve the difficulty of the conventional transfer learning of deep learning-based object detection models. The genetic algorithm of the proposed method can select the re-learning layers automatically in the transfer learning process instead of a trial-and-error selection of the conventional method. Transfer learning was performed using the EfficientDet-d0 model pre-trained on the COCO dataset and the Global Wheat Head Detection (GWHD) dataset, and experiments were conducted to compare fine-tuning and the proposed method. Using the training data and the validation data of the GWHD, we compare the mean average precision (mAP) of the models trained by the conventional and the proposed methods, respectively, on the test data of the GWHD. It is confirmed that the model trained by the proposed method has higher performance than the model trained by the conventional method. The average of mAP of the proposed method, which automatically selects the re-learning layer (≈0.603), is higher than the average of mAP of the conventional method (≈0.594). Furthermore, the standard deviation of results obtained by the proposed method is smaller than that of the conventional method, and it shows the stable learning process of the proposed method.
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Kalluri, Ramadevi, and Prabha Selvaraj. "An image analysis technique for wheat head count detection using machine learning." Bulletin of Electrical Engineering and Informatics 13, no. 5 (October 1, 2024): 3515–25. http://dx.doi.org/10.11591/eei.v13i5.7255.

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Deep learning (DL) techniques have significantly enhanced the potential for wheat head detection in recent times. The different development phases of canopy, genotype, wheat heads, and wheat head orientation provide considerable obstacles. The overlapping density of wheat heads and wind- induced picture blurring complicate wheat head recognition. This study describes an effective wheat head detection and counting method. Due to its high throughput in agricultural field analysis, remote sensing phenotyping has grown in popularity. Applying DL methods for image processing and other technological advancements has increased the scope for the quantitative evaluation of various crop traits. The ability to detect and characterize wheat heads in the industry is an important part of the wheat breeding process for selecting high-yielding cultivars. The proposed method uses the Mask region-based convolutional neural network (RCNN) framework to detect and classify the wheat ears. The complete detection task is done in three steps: region proposal generation, region of interest alignment, and mask generation. The global wheat head detection (GWHD) dataset is used for the experimental analysis of the dataset. The proposed method achieved an accuracy of 95.11% on the GWHD dataset, demonstrating its effectiveness in wheat head detection and classification tasks.
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David, Etienne, Simon Madec, Pouria Sadeghi-Tehran, Helge Aasen, Bangyou Zheng, Shouyang Liu, Norbert Kirchgessner, et al. "Global Wheat Head Detection (GWHD) Dataset: A Large and Diverse Dataset of High-Resolution RGB-Labelled Images to Develop and Benchmark Wheat Head Detection Methods." Plant Phenomics 2020 (August 20, 2020): 1–12. http://dx.doi.org/10.34133/2020/3521852.

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The detection of wheat heads in plant images is an important task for estimating pertinent wheat traits including head population density and head characteristics such as health, size, maturity stage, and the presence of awns. Several studies have developed methods for wheat head detection from high-resolution RGB imagery based on machine learning algorithms. However, these methods have generally been calibrated and validated on limited datasets. High variability in observational conditions, genotypic differences, development stages, and head orientation makes wheat head detection a challenge for computer vision. Further, possible blurring due to motion or wind and overlap between heads for dense populations make this task even more complex. Through a joint international collaborative effort, we have built a large, diverse, and well-labelled dataset of wheat images, called the Global Wheat Head Detection (GWHD) dataset. It contains 4700 high-resolution RGB images and 190000 labelled wheat heads collected from several countries around the world at different growth stages with a wide range of genotypes. Guidelines for image acquisition, associating minimum metadata to respect FAIR principles, and consistent head labelling methods are proposed when developing new head detection datasets. The GWHD dataset is publicly available at http://www.global-wheat.com/and aimed at developing and benchmarking methods for wheat head detection.
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David, Etienne, Mario Serouart, Daniel Smith, Simon Madec, Kaaviya Velumani, Shouyang Liu, Xu Wang, et al. "Global Wheat Head Detection 2021: An Improved Dataset for Benchmarking Wheat Head Detection Methods." Plant Phenomics 2021 (September 22, 2021): 1–9. http://dx.doi.org/10.34133/2021/9846158.

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The Global Wheat Head Detection (GWHD) dataset was created in 2020 and has assembled 193,634 labelled wheat heads from 4700 RGB images acquired from various acquisition platforms and 7 countries/institutions. With an associated competition hosted in Kaggle, GWHD_2020 has successfully attracted attention from both the computer vision and agricultural science communities. From this first experience, a few avenues for improvements have been identified regarding data size, head diversity, and label reliability. To address these issues, the 2020 dataset has been reexamined, relabeled, and complemented by adding 1722 images from 5 additional countries, allowing for 81,553 additional wheat heads. We now release in 2021 a new version of the Global Wheat Head Detection dataset, which is bigger, more diverse, and less noisy than the GWHD_2020 version.
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Eltarabily, Mohamed Galal, Ismail Abd-Elaty, Ahmed Elbeltagi, Martina Zeleňáková, and Ismail Fathy. "Investigating Climate Change Effects on Evapotranspiration and Groundwater Recharge of the Nile Delta Aquifer, Egypt." Water 15, no. 3 (February 1, 2023): 572. http://dx.doi.org/10.3390/w15030572.

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Climate change (CC) directly affects crops’ growth stages or level of maturity, solar radiation, humidity, temperature, and wind speed, and thus crop evapotranspiration (ETc). Increased crop ETc shifts the fraction of discharge from groundwater aquifers, while long-term shifts in discharge can change the groundwater level and, subsequently, aquifer storage. The long-term effect of CC on the groundwater flow under different values of ETc was assessed for the Nile Delta aquifer (NDA) in Egypt. To quantify such impacts, numerical modeling using MODFLOW was set up to simulate the groundwater flow and differences in groundwater levels in the long term in the years 2030, 2050, and 2070. The model was initially calibrated against the hydraulic conductivity of the aquifer layers of the groundwater levels in the year 2008 from 60 observation wells throughout the study area. Then, it was validated with the current groundwater levels using an independent set of data (23 points), obtaining a very good agreement between the calculated and observed heads. The results showed that the combination of solar radiation, vapor pressure deficit, and humidity (H) are the best variables for predicting ETc in Nile Delta zones (north, middle, and south). ETc among the whole Nile Delta will increase by 11.2, 15.0, and 19.0% for the years 2030, 2050, and 2070, respectively. Zone budget analysis revealed that the increase of ETc will decrease the inflow and the groundwater head difference (GWHD). Recharge of the aquifer will be decreased by 19.74, 27.16, and 36.84% in 2030, 2050, and 2070, respectively. The GWHD will record 0.95 m, 1.05 m, and 1.40 m in 2030, 2050, and 2070, respectively when considering the increase of ETc. This reduction will lead to a slight decline in the storage of the Nile Delta groundwater aquifer. Our findings support the decision of the designers and the policymakers to guarantee a long-term sustainable management plan of the groundwater for the NDA and deltas with similar climate conditions.
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Ojha, Grishma, Bishwambhar Dahal, Sirjana Bhatta, and Sandeep Chataut. "Comparative Analysis of Transformer-Based and CNN Models for High-Throughput Wheat Head Detection." European Journal of Theoretical and Applied Sciences 2, no. 6 (November 1, 2024): 784–93. https://doi.org/10.59324/ejtas.2024.2(6).70.

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Wheat head or spike detection is significant for phenotyping because it can be directly correlated to yield and is an indicator of yield potential. Historically, wheat head counting was a labor-intensive and error prone process. Use of Deep Learning (DL) techniques has automated this process allowing automated wheat head detection and counting using high resolution imagery, allowing large-scale, High Throughput Phenotyping (HTP). Despite the use of advanced technologies, wheat head detection is a challenging task due to high environmental variability, cultivar differences, and head overlap. Several attempts have been made to make the DL models more robust and the wheat head datasets more diverse to improve the detection accuracy and reliability. With the introduction of advanced DL architectures, there has been continuous improvement in accuracy of head detection. In this study, we have evaluated the performance of three different cutting-edge DL models - YOLOv10x, RetinaNet, and MM-Grounding DINO for wheat head detection. We have also combined two different wheat datasets, Global Wheat Head Detection (GWHD) 2021 and SPIKE dataset to get a diverse dataset with a wide range of genotypes. This study aims to contribute to the ongoing evolution of wheat head detection techniques and provide an insight into how these three models perform for this task.
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Seemakurthy, Karthik, Charles Fox, Erchan Aptoula, and Petra Bosilj. "Domain Generalised Faster R-CNN." Proceedings of the AAAI Conference on Artificial Intelligence 37, no. 2 (June 26, 2023): 2180–90. http://dx.doi.org/10.1609/aaai.v37i2.25312.

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Domain generalisation (i.e. out-of-distribution generalisation) is an open problem in machine learning, where the goal is to train a model via one or more source domains, that will generalise well to unknown target domains. While the topic is attracting increasing interest, it has not been studied in detail in the context of object detection. The established approaches all operate under the covariate shift assumption, where the conditional distributions are assumed to be approximately equal across source domains. This is the first paper to address domain generalisation in the context of object detection, with a rigorous mathematical analysis of domain shift, without the covariate shift assumption. We focus on improving the generalisation ability of object detection by proposing new regularisation terms to address the domain shift that arises due to both classification and bounding box regression. Also, we include an additional consistency regularisation term to align the local and global level predictions. The proposed approach is implemented as a Domain Generalised Faster R-CNN and evaluated using four object detection datasets which provide domain metadata (GWHD, Cityscapes, BDD100K, Sim10K) where it exhibits a consistent performance improvement over the baselines. All the codes for replicating the results in this paper can be found at https://github.com/karthikiitm87/domain-generalisation.git
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Liu, Chengxin, Kewei Wang, Hao Lu, and Zhiguo Cao. "Dynamic Color Transform Networks for Wheat Head Detection." Plant Phenomics 2022 (February 1, 2022): 1–14. http://dx.doi.org/10.34133/2022/9818452.

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Wheat head detection can measure wheat traits such as head density and head characteristics. Standard wheat breeding largely relies on manual observation to detect wheat heads, yielding a tedious and inefficient procedure. The emergence of affordable camera platforms provides opportunities for deploying computer vision (CV) algorithms in wheat head detection, enabling automated measurements of wheat traits. Accurate wheat head detection, however, is challenging due to the variability of observation circumstances and the uncertainty of wheat head appearances. In this work, we propose a simple but effective idea—dynamic color transform (DCT)—for accurate wheat head detection. This idea is based on an observation that modifying the color channel of an input image can significantly alleviate false negatives and therefore improve detection results. DCT follows a linear color transform and can be easily implemented as a dynamic network. A key property of DCT is that the transform parameters are data-dependent such that illumination variations can be corrected adaptively. The DCT network can be incorporated into any existing object detectors. Experimental results on the Global Wheat Detection Dataset (GWHD) 2021 show that DCT can achieve notable improvements with negligible overhead parameters. In addition, DCT plays an important role in our solution participating in the Global Wheat Challenge (GWC) 2021, where our solution ranks the first on the initial public leaderboard, with an Average Domain Accuracy (ADA) of 0.821, and obtains the runner-up reward on the final private testing set, with an ADA of 0.695.
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Dissertations / Theses on the topic "GWHD"

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Maston, Nicolas. "Présentation du programme d'éducation à l'Automesure tensionnelle (PEA) en Guadeloupe coordonné par le réseau HTA-GWAD." Antilles-Guyane, 2008. http://www.theses.fr/2009AGUY0254.

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L'HTA en Guadeloupe présente comme principale caractéristique sa très forte prévalence, particulièrement dans les classes sociales précaires. Son association fréquente à d'autres facteurs de risque cardio-vasculaires en fait un problème capital de santé publique. Le réseau de soins HTA-GWAD a mis en place fin 2008, un programme novateur: le Programme d'Education à l'Automesure (PEA), afir de favoriser le développement de la pratique de l'AMT en Guadeloupe, en impliquant les professionnels de santé, mais également les structures sociales. Le caractère décentralisé en est la grande originalité. En effet, les dernières recommandations de l'HAS établissent l'intérêt de l'AMT dans le diagnostic, dans le suivi des patients et dans l'éducation aux facteurs de risque en impliquant le patient dans sa prise en charge. La vente d'appareils d'AMT ayant cru ces derniers temps de façon importante en Guadeloupe, l'éducation à l'HTA et à la prise en charge des facteurs de risque cardio-vasulaires à travers l'éducation à l'AMT apparaît particulièrement appropriée au contexte Guadeloupéen. Quand le patient achète un autotensiomètre, le pharmacien, son médecin ou son IDE lui remettent un carton d'invitation afin qu'il bénéficie d'une éducation à l'AMT par le réseau HTA-GWAD. Dès que le patient sollicite le réseau, une IDE agréée et formée par le réseau proche de son domicile est contactée afin de lui dispenser deux séances d'éducation gratuites à une semaine d'intervalle. Une lettre de synthèse informative est ensuite adressée au médecin traitant sans ingérence dans son projet thérapeutique. L'évaluation de son efficacité conditionnera la diffusion de ce concept original
HTA in Guadeloupe has for main characteristic ils very strong prevalencia, particularly in the precarious social classes. Its association in the other cardiovascular risk factors makes of it a major problem of public health. The care network HTA-GWAD set up at the end of 2008, an innovative program: the Program of Education in the Automeasure ( PEA), te facilitate the development of the practice of the AMT in Guadeloupe, by implying the professionals of health, but also the social orders. The decentralized character is the big originality. Indeed, the last recommendations of the HAS establish the interest of the AMT in the diagnosis, in the follow-up of the patients and in the education in the risk factors by involving the patient in his care. The sale of devices of AMT having increased lately in a important way in Guadeloupe, the education in the HTA and in the care of the cardio-vasulaires risk factors through the education in the AMT seems particularly suited to the Guadelupian context. When the patient buys an autotensiometer, the pharmacist, his doctor or his IDE gives him an invitation card so that it benefits from an education in the AMT by the network HTA-GWAD. As soon as the patient seeks the network, an IDE approved and formed by the networ close to his place of residence is contacted to distribute him two free educational sessions in a week of interval. A letter of informative synthesis is then sent a letter of informative synthesis is then sent to the regular doctor without intervention in its therapeutic project. The evaluation of its efficiency will condition the expansion of this original concept
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Ali, Hazem Abd El-Rahman Obiadalla. "Understanding of carbon partitioning in tomato fruit." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2003. http://dx.doi.org/10.18452/14900.

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Während der Entwicklung von Früchten der Tomate (Sorte Micro-Tom) wurde der Kohlenhydrat-Stoffwechsel untersucht. Es wurde ein Unterschied zwischen dem Metabolismus im Perikarp und dem des Plazenta-Gewebes gefunden. Stärke wurde in der Plazenta langsamer abgebaut als im Perikarp, während lösliche Zucker im Perikarp stärker akkumulierten. Die Aktivitäten der glykolytischen Enzyme tendierten zu einem Maximum 40 Tage nach der Blüte. Weiterhin wurde die Expression einiger plastidärer Transporter untersucht. Sowohl der Triosephosphat-Tranporter (TPT) als auch der Glucose-6-phosphat-Transporter wurden am stärksten in grünen Früchten exprimiert, während der Reife nahm die Expression ab. Der ATP/ADP-Transporter wurde während der Fruchtentwicklung nur schwach exprimiert.Es besteht die Hypothese, daß die Rolle der drei Enzyme plastidäre Fructose-1,6-Bisphosphatase (cp-FBPase), ADP-Glucose Pyrophosphorylase (AGPase) und Glucan Wasser Dikinase (GWD) darin besteht, die Stärke-Akkumulation in der frühen Entwicklung der Tomaten-Frucht zu beeinflussen. Diese Hypothese wurde unter Verwendung der Antisense-Technik für die plastidären FBPase (unter der Kontrolle des B33 Promoters), sowie für die AGPase und die GWD (beide unter der Kontrolle des CaMV 35S-Promoters) in der Tomaten-Kultivar Moneymaker untersucht. Die Repression von plastidärer FBPase oder AGPase in der Frucht der Tomate scheint die Metaboliten-Konzentrationen nicht so stark wie in den Blättern zu beeinflussen. Der Grund hierfür ist wahrscheinlich, daß jede Veränderung durch die Fähigkeit der Frucht, Zucker zu importieren, abgepuffert wird. Auf der anderen Seite hatte die Repression des GWD Proteins in der Frucht der Tomate starke Effekte auf die Metaboliten-Konzentrationen.
Carbohydrate metabolism was studied during the development of fruits of the tomato cultivar Micro-Tom. The metabolism of the pericarp and placental tissues was found to be different. Starch being degraded more slowly in the placenta than in the pericarp, while soluble sugars accumulated to a greater extent in the pericarp. The activities of glycolytic enzymes tended to peak at 40 days after flowering. The expression of some plastidial transporters was also studied. Both the triose phosphate transporter (TPT) and Glucose-6-Phosphate (Glc-6-P) transporter were expressed greatest in green fruits, before declining. The expression of the triose phosphate transporter (TPT) was greater than that of Glc-6-P transporter. The ATP/ADP transporter was expressed to a low level throughout fruit development. The role of three enzymes Chloroplastic Fructose-1,6-bisphosphatase (cp-FBPase), ADP-glucose Pyrophosphorylase (AGPase) and Glucan Water Dikinase (GWD) protein are thought to influence the accumulation of starch in early development in tomato fruit were studied in normal sized tomatoes of the cultivar Moneymaker using antisense technique under the control of the patatin B33 promoter in the case of cp-FBPase, and the CaMV 35S promoter in the case of AGPase and GWD protein. It appears that repression of cp-FBPase and AGPase in tomato fruits does not influence metabolite levels as greatly as it does in leaves, possibly because any alterations are buffered by the ability of the fruit to import sugars. On the other hand, the repression of GWD protein in tomato fruits has a strong effect on metabolite levels.
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Chang, Jong-min, and 張忠民. "The study of GWHW SCM dynamic model." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/89337974379800583434.

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碩士
國立臺北科技大學
商業自動化與管理研究所
88
The goal of SCM(Supply Chain Management) dynamic model is to build a real-time response, comparsion, modification and warning mechanism in changing environment by refering to a performance evaluation index, in order to achieve the purpose of management. The basis of SCM is based on the mutual trust, coordination and cooperation between supply chain members, by the flow rationalization and the foundation of powerful intra-organizational infomation system, which can achieve better SCM performance. Petri-net is adopted to establish the SCM model in this research, which can fit both the flow scope and function scope requirement in supply chain management. According to the algorithm rule introduced in this research, it can establish the SCM dynamic model of GWHW. By response and comparsion mechanism, the management operation function can be more instantaneous and smooth to achieve the purpose of fitting environmental changes and quick modification of supply chain operation. The performance evaluation model introduced in this research can provide supply chain members of GWHW with self-performance-evaluation reference and total supply chain performance-evaluation reference . When the performance change significantly , it can trace the reasons of improved or downgraded performance(for example: bottleneck, bullwhip effect), and find the way to overcome it.
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施仁和. "A Study of the Supply Chain Management Reference Model for Taiwan GWHW." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/00693228055654212906.

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碩士
國立臺北科技大學
商業自動化與管理研究所
88
ABSTRACT With the continual expansion of enterprise and rapid development of information technology, the commerce war will exist between enterprise groups, rather than individual enterprise. Also, since the logistics management could no longer satisfy the customers’ demand, the integrated and all-view supply chain management is now on the rise. In this study, we propose a supply chain management (SCM) reference model for integrating inner and outer resources of Taiwan General Merchandise store, Wholesale, Hyper market, and Warehouse store (GWHW). In this thesis, we first analyze the Supply Chain Operation Reference model (SCOR) and Collaborative Planning, Forecasting and Replenishment (CPFR) SCM and considers the characteristics of GWHWs in Taiwan to establish a Taiwan GWHW SCM reference model. Then we use the ARIS to integrate the four factors — data, control, organization and function — to build a supply chain management reference model for Taiwan GWHW. Finally, we discuss the modeling and its steps. We hope that this model will become a reference for other successors.
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高宏華. "The Study of the Framework of Strategy and Key Success Factors for Taiwan’s GWHW Supply Chain Management." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/96150912969235147406.

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碩士
國立臺北科技大學
商業自動化與管理研究所
88
Abstract From 1952 to 1998, the total trade volume of Taiwan has increased from 300 million dollars to more than 215 billion dollars and Taiwan national income per capita has also been drastically raised from $108 to $12,040. In the meantime, Taiwan is able to maintain a high economic growth rate and sustain a stable commodity price. Moreover, people’s living standard and the consuming style have been drastically upgraded. For example, the retail trades of grocery stores have been transformed into convenience stores, supermarkets, hypermarkets, and warehouse stores. Consequently, the commodity channels, selling and management strategies are altered in this time of transformation as well. Among those transformations, the General merchandise stores, Wholesale, Hypermarkets, Warehouse stores (GWHW) have developed rapidly and they have been existing in developed countries for many years. In 1975, the Taiwan “Goau-Fong Group,” inducted from the Japanese “know-how” set up the first GWHW at a old tea factory at Nan-King West Road in Taipei and they named the store “The World of Goau-Fong Wholesales.” In 1989, the “President Group,” inducted from the “Carre Four” of France set up the first wholesale store in Kaohshing. While the term “wholesale store” was originated from Japan, the know-how management came from Europe and United States. Due the short period of induction, Taiwan’s manufacturing and selling management must rely on the know-how provided by foreign sectors. In the future, when Taiwan enters the World Trade Organization, the GWHW sectors will need further cooperation and help from these foreign sectors to organize global purchasing. The main focuses will then cover the following topics: how to accommodate local environment, how to combine the existing management style and the foreign information utilization system and finally, how to research and develop a set of future supply chain management and strategies. The main purpose of this thesis is to study the above issues. Along with the spectra of management strategy and key factors for success, this thesis is defined as “GWHW industry in Taiwan.” The approach applied first is to establish a framework from interviews with experts and documentary research. Then the industry’s operating system and current situation by conducting pragmatic evidencing were studied, using questionnaires and surveys to comprehensively collect data and information. The analysis and conclusions in my study may serve as valuable reference for the industry’s executives and prospective researches. The main conclusions in this thesis are listed as follows: 1. In terms of the GWHW internal supply chain management, integrating information technology with internal operating process and ingeniously making use of interdepartment’s exchange may enhance a company’s internal management, purchasing, selling and storing efficiency. In terms of the GWHW external factors, over passing the upstream/downstream barriers, sharing information data, and improving supply chain management between supplier and customers will make the company much more competitive. 2. Among many factors, The GWHW’s success must rely on information technology’s ingenious manipulation and standardization. Moreover, the GWHWs should embark on the industry’s internal combining supply chains upstream/downstream overall viewpoints to engage in the most appropriate improvement and renovation. 3. In order to develop appropriate strategy to increase the industry’s compatibility, the strategy of supply chain of GWHW must stress the upstream/downstream integration, follow consumers’ needs, and ingeniously manipulate all of the industry’s inter-internal partner relationships, matching function, policy, environment, responsibilities and market cost price. 4. Along with the heightened awareness for environment and resources recycling values, the environmental supply-demand management must aim to increase the entire supply chain’s added value, to lower the industry’s social cost, and to increase the industry’s competition advantages.
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WU, Hui-Ling, and 吳慧玲. "The Feasibility Study of Applying CPFR to The Retailing Industry of Taiwan-Using the GWHW and Bakery Industries as Case Studies." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/82465408851467775732.

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碩士
淡江大學
資訊管理學系
91
Collaborative Planning Forecasting and Replenishment (CPFR) was originated solving the supply chain problem. There are many companies in other countries implement CPFR to prove that works and shows positive effort of it. There are only a few retailing companies using CPFR in Taiwan. This research developed a prototype system as the research tool. Building a CPFR prototype system as an interviewing tool increased the interviewers understanding of CPFR. Furthermore, another purpose of this research is to study the feasibility of applying CPFR to retailing industry of Taiwan and to discuss if CPFR could offer retailing industry of Taiwan about benefits and any advises. Finally, the research discusses the consideration factors of implementing the CPFR system. After analyzing, the finding revealed that CPFR is suitable for GWHW and Bakery industry. The prototype system has to be customized and based on the every industry. Such as GWHW, it should increase automation to decrease artificial typing work. In addition, degree of information and reliability would affect CPFR system, and implementing CPFR system could cause bottleneck which comes from the collaborated partners and supported by executive mostly.
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Pule, Sechaba Precious. "The use of ICT tools in a school for Learners with Special Education Needs (LSEN) in Gauteng West District (GWD)." Thesis, 2014. http://hdl.handle.net/10210/10287.

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Books on the topic "GWHD"

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Créquer, Uisant. Gwad ar granared. Laz: Keit Vimp Bev, 2008.

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V, Ramsdell J., U.S. Nuclear Regulatory Commission. Office of Nuclear Reactor Regulation. Division of Regulatory Improvement Programs., and Pacific Northwest National Laboratory (U.S.), eds. Environmental effects of extending fuel burnup above 60 Gwd/MTU. Wasington, DC: Division of Regulatory Improvement Programs, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, 2001.

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V, Ramsdell J., Pacific Northwest National Laboratory (U.S.), and U.S. Nuclear Regulatory Commission. Office of Nuclear Reactor Regulation. Division of Regulatory Improvement Programs., eds. Environmental effects of extending fuel burnup above 60 Gwd/MTU. Washington, DC: U.S. Nuclear Regulatory Commission, 2001.

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Wolff, H. Ekkehard. Our peoples own =: Ina laman : traditions and specimens of oral literature from Gwad Laman speaking peoples in the southern Lake Chad basin in Central Africa. Hamburg: RaP Research and Progress Verlagsgesellschaft, 1994.

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GWAD, Anonymous. Untitled GWAD. St. Martin's Press, 2024.

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Williams, Jamiel L. GWHT: Move with Finesse. Authorhouse, 2018.

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Wänyø mi tyelli gwed ki dhøg cøllø. [Maridi, Sudan?: s.n.], 1994.

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Topel, Harald. Brandenburgisches Hochschulgesetz: GWHL U StiftG-EUV U BbgHZG. Nomos Verlagsgesellschaft, 2017.

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Farmakis, Michail. Vermarktung Energieeffizienter Wohnimmobilien an Einem Beispiel Eines Neubauprojektes der Firma Gwh. GRIN Verlag GmbH, 2010.

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The Lamang language and dictionary: Documenting Gwàd Làmàn - endangered central Chadic language in Northeastern Nigeria. Köln: Rüdiger Köppe Verlag, 2015.

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Book chapters on the topic "GWHD"

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Lv, Xiaoxuan, and Hui Li. "Rolling Bearing Fault Diagnosis Based on GWVD and Convolutional Neural Network." In Lecture Notes in Computer Science, 514–23. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4761-4_44.

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Vani, Sumit Singh, Puja Burman, Anmol Jain, and Uma Shanker Tiwary. "GWD: Graded Word Drop Model for When Type Questions for Hindi QA." In Intelligent Human Computer Interaction, 140–53. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-27199-1_15.

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Mujjuni, Francis, Tom Betts, and Richard E. Blanchard. "Application of Observational Weather Data in Evaluating Resilience of Power Systems and Adaptation to Extreme Wind Events." In Springer Proceedings in Energy, 127–36. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30960-1_13.

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AbstractIn Great Britain, 70% of wind-related faults on the transmission power network are attributed to the top 1% gusts. These faults cause outages to millions of customers and have extensive cascading impacts. This study illustrated the application of historical ground measured wind data in a multi-phase resilience analysis process by: (i) projecting an extreme wind event, (ii) assessing components’ vulnerabilities, (iii) analysing system’s response, (iv) quantifying baseline resilience, and (v) evaluating the effectiveness of selected adaptation measures. The extreme event was modelled as a ubiquitous 100-year return gust event impacting upon the operations of the Reduced Great Britain transmission network test case. The results show an unmet demand of about 569 GWh/Week. Adaptation measures were necessary for 60% of transmission corridors with responsiveness improving resilience by 70%, robustness by 55%, and redundancy by 35%. The study implies that resilience enhancement can be prioritized within high potency corridors and organisational resilience could prove to be more effective than infrastructural and operational resilience.
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Diéz, Eduardo Sanchez, Federico Poli, and Francesca Soavi. "Open Battery Systems." In The Materials Research Society Series, 213–22. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-48359-2_11.

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AbstractGlobal battery demand for stationary storage is expected to increase up to more than 2500 GWh in the next 10 years. In this scenario, the redox flow batteries (RFBs) and metal–oxygen (air) batteries (MABs) represent a strategic alternative to LIBs.RFBs and MABs share a unique feature: unlike conventional LIBs and conventional batteries that are made by two solid electrodes, separated by an electrolyte/separator assembly, and that are hermetically sealed, RFBs and MABs can be considered as “open systems.” Besides the specific electrochemical processes that drive RFB and MAB operation and that will be discussed in the next sections, the open architecture of RFBs and MABs provides an inherent advantage vs. the closed batteries in terms of safety. Indeed, dangerous internal pressure and/or temperature rise that accidentally take place in case of battery failure can be mitigated.In the following, the most recent developments of novel open battery architectures are presented, while promises and challenges of these open systems are discussed.
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Taddia, Glenda, Stefano Lo Russo, and Vittorio Verda. "Comparison Between Neural Network and Finite Element Models for the Prediction of Groundwater Temperatures in Heat Pump (GWHP) Systems." In Engineering Geology for Society and Territory - Volume 6, 255–58. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09060-3_41.

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Ongen, Ali Samet, and Zeynal Abiddin Erguler. "Simulation and Evaluation of Thermal Interference Between Ground Source Heat Pumps (GWHP) in Kutahya Residential Area (Western Anatolia, Turkey)." In Advances in Science, Technology & Innovation, 107–10. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-42917-0_25.

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"Chapter 1 Return to the Garden: Gwed, Locating Intentions, and Interpretive Puzzles." In Trees, Knots, and Outriggers, 36–78. Berghahn Books, 2022. http://dx.doi.org/10.1515/9781785332333-004.

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Al-musleh, Easa I., Dharik S. Mallapragada, and Rakesh Agrawal. "GWh Level Renewable Energy Storage and Supply using Liquid CO2." In Computer Aided Chemical Engineering, 415–20. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-444-63234-0.50070-1.

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César de Mendonça Brasil, Augusto. "Methodology for the Evaluation of the Electrical Energy Potential of Residual Biomass from the Wood Industry: A Case Study in Brazil." In Forest Biomass - From Trees to Energy. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.92642.

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This chapter presents in a consolidated manner the step-by-step methodology to estimate the electrical energy potential of industrial wood residues considering the dependency of the efficiency of the power plants with their size. A function of the overall efficiency with power was obtained from a best curve fit of real data both taken from the literature and from Brazilian biomass-fired power plants. The methodology was applied to the determination of the electrical energy potential of wood industry residues in the State of Pará (data collected in 2004). Two cases were analyzed: one where a constant electrical efficiency of 25% was considered (independently of the amount of residues generated) and another where the proposed function of efficiency with power was used. Results show that in the State of Pará, the existent 675 sawmills generated 2.95 × 106 t in dry basis. When the dependency of efficiency with plant size is not considered, the electrical energy potential and average installed power (3140.4 GWh and 2 MWe) are overestimated in comparison to the herein proposed methodology (1868.8 GWh and 1 MWe). The present methodology, considering the efficiency as a function of the power, results in an average efficiency of 12.3% (lower than 25%).
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Nabipour Afrouzi, Hadi, Yuhani Pamodha Wimalaratna, Jubaer Ahmed, Kamyar Mehranzamir, San Chuin Liew, Chin-Leong Wooi, and Bazlul Mobin Siddiquea. "A Comprehensive Review on Available/Existing Renewable Energy Systems in Malaysia and Comparison of Their Capability of Electricity Generation in Malaysia." In Entropy and Exergy in Renewable Energy. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.96586.

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Malaysia is one of the fastest emerging and developing countries in the world. To drive the economical workhorse, large amounts of power is required. The power demand has risen to 156,003 GWh per year in the year 2016, almost 30,000 GWh more than 5 years prior. Fossil fuels such as natural gas, coal, oil, and diesel have been the driving force powering Malaysia’s grids. However, these resources will not last forever, and they do harm to our environment. To counter this, renewable energy (RE) projects have been constructed all around Malaysia. This paper discusses on available and existing renewable energy systems (single/hybrid) in Malaysia and provides a comparison of their electricity generation capabilities. The renewable energy sources that are covered in this paper include Solar, Hydropower, Biomass, Tidal and Geothermal. At the moment, hydropower is the largest renewable energy producer, contributing to almost 15% of the country’s total energy generation. A lot of resources have been channeled towards the initiative of hydropower and it has definitely borne much fruit. This is followed by Solar Energy. Even though it is not as successful as hydropower, there is still a lot of avenues for it to grow in a tropical country like this. Malaysia is still relatively new in terms of power generation using biomass sources. There has been a gradual increase in the power generation using biofuels through the years and its future does look bright. Energy generation from wind, tidal, and geothermal sources has been rather challenging. Because of Malaysia’s geographical location, it experiences slow winds on average throughout the year. This has led to insufficient output for its financial input. Besides that, Malaysia also has relatively low tide, if compared to other Asian countries such as Indonesia and the Philippines. This contributed to the failure of tidal energy in Malaysia, but there have been signs of locations that can be suitable for this energy generation. Besides that, the country’s first geothermal power plant project failed due to a lack of preparation and discipline during the project’s execution. There is a high initial cost for geothermal projects, and the chances of failure are high if the necessary precautions are not followed. This could be one of the reasons why this branch of renewable energy has not been explored deeply.
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Conference papers on the topic "GWHD"

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Pangampe, Sahid, Ikhlas Kitta, Arham Amri, and Keisha Mahira Ikhra. "Planning for Additional Power Generation Capacity in the South Sulawesi Area Based on the OseMOSYS Model." In International Conference on Research in Engineering and Science Technology (IC-REST) 2023, 115–20. Switzerland: Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-t0qjao.

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The forecast for electrical energy demands in the South Sulawesi area in 2060 is 198,353 GWh, so the electricity generation capacity required under the Business As Usual scenario is 38.68 GW in that year. If this demand is connected to the scenario of limiting the construction and operation of coal-fired power plants, then the capacity required is 41.02 GW. This article provides an overview of the value of electrical energy demand and generating capacity in South Sulawesi where the method used to plan additional electricity generating capacity is based on the OSeMOSYS model. The generating capacity of the analysis results comes from various types of power plants, namely: conventional types (combine cycle power plant, gas turbine power plant, gas engine power plant, coal-fired power plant, and diesel power plant), and Renewable Energy types (hydropower plant, mini hydro power plant, biomass power plant, waste-to-energy power plant, geothermal power plant, wind turbine power plant, and photovoltaic power plant). The primary energy used by these power plants comes from the South Sulawesi area and from outside South Sulawesi. Specifically, renewable energy is the potential of the South Sulawesi region.
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Iwundu, Chukwudi Paschal, Ogheneruona Endurance Diemuodeke, and Joseph Chukwuma Ofodu. "Modelling and Optimization of Hybrid Photovoltaic-Wind Turbine with Energy Storage System for Autonomous Electricity Generation." In Africa International Conference on Clean Energy and Energy Storage, 165–74. Switzerland: Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-k0qcyv.

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The integration of renewable energy sources, such as photovoltaic (PV) and wind turbines, has gained significant attention due to the growing demand for reliable and clean energy solutions. This paper presents a comprehensive modelling and optimization approach for hybrid PV and wind turbine systems to maximize system performance at the same time minimizing cost and surplus energy. The proposed model incorporates detailed mathematical formulations that capture the interactions between PV modules, wind turbines, and the storage system which is a battery energy storage system (BESS). The model also considers economic factors and methods to reduce the surplus energy of the system. The optimization scheme utilized the African vulture optimization algorithm (AVOA). The AVOA is a nature-inspired meta-heuristic algorithm created based on the hunting patterns of African vultures. In addition, the AVOA was constructed to handle a multi-objective optimization with size and costs as the objective functions. The optimized system provides the best system size to support the electricity supply of a coastline town (4.7231°N, 6.77881°E). The optimized system can deliver 41.80 GWh of energy annually, meeting 98.3% of the energy demands of the community; while the optimized system has a cost savings of 45.11%, with 92.9% penetration. The work provides valuable insights for system designers, energy planners, and policymakers in their efforts to promote renewable energy integration and address the challenges associated with the transition to a low-carbon future.
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Setiawan, Wiliam, Yohen Thounaojam, and Apurva Narayan. "GWAD: Greedy Workflow Graph Anomaly Detection Framework for System Traces." In 2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC). IEEE, 2020. http://dx.doi.org/10.1109/smc42975.2020.9282938.

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Jayashankar, V., K. Mala, S. Kedarnath, J. Jayaraj, U. Omezhilan, and V. Krishna. "Design of A 100 GWh Wave Energy Plant." In World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden. Linköping University Electronic Press, 2011. http://dx.doi.org/10.3384/ecp110572167.

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Mala, K., J. Jayaraj, V. Jayashankar, T. M. Muruganandam, S. Santhakumar, M. Ravindran, M. Takao, T. Setoguchi, K. Toyota, and S. Nagata. "Design of a 50 GWh Wave Energy Plant." In 2009 Annual IEEE India Conference. IEEE, 2009. http://dx.doi.org/10.1109/indcon.2009.5409357.

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Zhang, Chao, Guanghui Zhou, Xiaodan Zhao, and Zhen Zhang. "The Stability Study of the GWHP System with Superheated Vapor Heat Recovery." In 2010 Asia-Pacific Power and Energy Engineering Conference. IEEE, 2010. http://dx.doi.org/10.1109/appeec.2010.5448503.

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Zhou, Guanghui, Chao Zhang, Siqi Cui, and Zhen Zhang. "The Performance Study of the GWHP System with Superheated Vapor Heat Recovery." In 2010 Asia-Pacific Power and Energy Engineering Conference. IEEE, 2010. http://dx.doi.org/10.1109/appeec.2010.5448504.

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Park, Byeong-Hak, Dahee Jung, Bo-Hyun Lee, and Kang-Kun Lee. "THERMAL DISPERSION BEHAVIOR UNDER THE INDUCED FLOW FIELD BY THE GWHP SYSTEM." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-301923.

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Cui, Yinzhe. "Optical Remote Sensing Ship Object Detector Based on Improved GWD." In 2023 IEEE 2nd International Conference on Electrical Engineering, Big Data and Algorithms (EEBDA). IEEE, 2023. http://dx.doi.org/10.1109/eebda56825.2023.10090822.

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Nguyen, Kim Long, Mahmoud Shehabeldin, Salem Hamad Al-Sabea, Ahmed Moustafa, Karim Ousdidene, Sachin Sharma, and Mohab El-Masry. "Application of Gas While Drilling in Fluid Detection and Perforation Strategy in Jurassic Reservoirs." In International Petroleum Technology Conference. IPTC, 2024. http://dx.doi.org/10.2523/iptc-23517-ea.

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Abstract Nowadays, the acquisition of Gas While Drilling (GWD) is applied widely in the Oil and Gas industry. The analysis of gas data plays a remarkable role in evaluating the hydrocarbon potential of the formations, especially in high-pressure, tight, and fractured carbonate reservoirs. In addition, the GWD finds its application in geo-steering to drive high-angle or horizontal wells to achieve maximized reservoir contact (MRC). This paper presents a procedure of interpreting gas data while drilling and its application in formation evaluation, determination of productive intervals, fluid characterization, and identification of fluid contacts. The study discusses the Upper and Middle Jurassic reservoirs in New Fields, West Kuwait. The excellent result of the GWD analysis efficiently identifies the hydrocarbon potentials and fluid contacts in New Fields. The well test results of recently drilled wells absolutely prove the successful deployment of the GWD method in West Kuwait.
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Reports on the topic "GWHD"

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Vavrin, John L. A Quantitative Study of the Viability of Greywater Heat Recovery (GWHR): GWHR Implemented in Barracks and Dining Facilities. Fort Belvoir, VA: Defense Technical Information Center, June 2011. http://dx.doi.org/10.21236/ada559324.

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MORRIS, RN. MOX Average Power Test 30 GWd/MT PIE: Quick Look. Office of Scientific and Technical Information (OSTI), February 2001. http://dx.doi.org/10.2172/814226.

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Morris, R. N., C. A. Baldwin, and N. H. Packan. MOX Test Fuel 50 GWd/MT PIE: Capsule 5 Quick Look. Office of Scientific and Technical Information (OSTI), January 2005. http://dx.doi.org/10.2172/1427162.

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Morris, R. N., C. A. Baldwin, S. A. Hodge, and N. H. Packan. MOX Average Power 30 GWd/MT PIE: Final Report; Vol.1 Rev.0. Office of Scientific and Technical Information (OSTI), November 2001. http://dx.doi.org/10.2172/1409171.

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Lindfors, Axel, Mats Eklund, Anna Brunzell, Erik Erjeby, Tomas Hirsch, Jonas Ammenberg, Stephanie Cordova, et al. Världens bästa biogassystem: Ett BRC innovationsprojekt. Linköping University Electronic Press, October 2024. http://dx.doi.org/10.3384/9789180759069.

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I denna studie undersöktes potentialen för etableringen av nya biogassystem inom ett geografiskt område som utgjordes av Region Sörmlands kommuner samt kommunerna Södertälje, Nykvarn, Norrköping och Söderköping. Anledningen till studien är det studerade områdets förhållandevis låga nuvarande biogasproduktion samt den stora potentiella efterfrågan på biogas i området, då SSAB i framtiden kommer behöva biogas till sin fossil-fria stålbearbetning. I studien studerades den tekniska och administrativa potentialen, det vill säga vad som är möjligt att producera under dagens administrativa villkor samt med dagens (och en nära framtids) teknik. Potentialen undersöktes utifrån fyra olika potentialer: rötbar biomassapotential, biogaspotential, koldioxidproduktionspotential och näringscirkulationspotential. Resultatet visar på en biogaspotential mellan 380 och 540 GWh per år vilket skulle motsvara en stor ökning från dagens produktion på mellan 50 och 60 GWh per år. Ytterligare 100 GWh per år skulle kunna produceras av koldioxiden genom biometanisering men då krävs stora mängder vätgas. Angående näringscirkulationspotentialen så kan biogödseln (som samproduceras med biogas i biogasanläggningar) uppfylla cirka tre fjärdedelar av kvävebehovet, nära hela fosforbehovet och fyra gånger kaliumbehovet i det studerade områdets jordbruk. Det studerade området delades upp i fem produktionsområden för att öka upplösningen i studien. Dessa områden valdes för att de skulle kunna utgöra delområden som är stora nog för att etablera biogasanläggning av den storlek som krävs för att förvätska biogasen och samtidigt undvika alltför långa transportsträckor för substrattransporter. Detta svarar upp mot trenden att etablera större och större biogasanläggningar samt ett ökat fokus på förvätskad biogas. Dock kan mindre anläggningar vara nödvändiga för att uppnå vissa delar av potentialen i områden med små, men betydelsefulla, substratmängder. Det produktionsområde med störst potential var Söderköping/Norrköping men det betyder nödvändigtvis inte att det är det mest lovande produktionsområdet att börja mer fokuserade implementeringsstudier i då andra faktorer så som lönsamhet inte undersökts i denna studie. Fortsatta studier bör fokusera på hur lantbruksrelaterade substrat kan användas inom biogasproduktion. Här kan studier fokusera på olika områden, exempelvis hur biogasanläggningar kan drivas stabilt på enbart grönmassa (till exempel vall och mellangrödor) och hur ökad odling för biogasproduktion påverkar mat- och foderproduktion, individuella lantbrukare samt åkermarkens långsiktiga hälsa. Dessutom behövs implementeringsstudier för att realisera potentialen, dessa bör fokusera på att undersöka specifika etableringsmöjligheter utifrån ekonomiska, tekniska, logistiska och administrativa perspektiv.
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Morris, R. N. MOX capsule post-irradiation examination. Volume 2: Test plan for 30-GWd/MT burnup fuel. Office of Scientific and Technical Information (OSTI), December 1997. http://dx.doi.org/10.2172/629471.

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Gastelum, Jason A. Quality Assurance Review of ISOTOPE and ORIGEN Decay Masses for PWR Fuel (51 GWd/MTU). Office of Scientific and Technical Information (OSTI), March 2011. http://dx.doi.org/10.2172/1015906.

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Larsson, Madeleine, Karin Tonderski, Genevieve Metson, and Nils-Hassan Quttineh. Towards a more circular biobased economy and nutrient use on Gotland: finding suitable locations for biogas plants. Linköping University Electronic Press, July 2023. http://dx.doi.org/10.3384/report.diva-194234.

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In this study we have investigated the role of biogas solutions to support increased resource efficiency on the island Gotland, including recovery and redistribution of nitrogen (N) and phosphorus (P) within the agricultural sector. First, we analyzed the potential for expanding energy and nutrient recovery from organic residues using biogas solutions. Our findings suggest that the biogas production could expand to 165 GWh, from the current 36 GWh (2020), with manure accounting for a potential 110 GWh biogas annually if all were digested. Comparing the nutrients contained in organic feedstock with the crop nutrient demand on Gotland showed that for N the demand is 2.4 times higher than the supply. In contrast, the calculations showed a 137 tonnes P surplus, with distinct excess areas in the center and southern part of the island. We then compared scenarios with different numbers (3 - 15) of biogas plants with respect to efficient nutrient redistribution and transport costs. Spatial constraints for new plants, e.g. need for roads with a certain capacity and permit issues, were accounted for by adding local information to a national data set. We identified 104 potential locations (1 km$^2$ grid cells) and used an optimization model to identify the most suitable locations for minimized transport costs. Optimal (meeting the crop demand with no excess) redistribution of all nutrients contained in the feedstock, as raw digestate from biogas plants, would result in an export of 127 tonnes of P from the island. The model results indicated that if all potential feedstock would be digested in three additional biogas plants and nutrients redistributed for optimal reuse, the total transport cost would be 2.6 million SEK annually, excluding the costs for nutrient export from the island (3.7 million SEK). If instead 10 or 15 smaller plants would be built, the transport cost would drop to 1.8 million SEK, with the same amount of P being exported. Comparing the scenarios with different number of biogas plants (3 - 15), showed that some locations are more suitable than others in terms of distance to feedstock and to fields with fertilizer demands. Finally, a preliminary analysis of the amount of crop residues indicated that this type of feedstock could add a substantial amount of biogas production, but more extensive analyses are needed to assess the feasibility to realize part of that potential.
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Gray Chang. Integrated Fast Neutron Flux at the End of Phase-IV, Part 2 (50 GWd/t) MOX Zr Cladding Tubes. Office of Scientific and Technical Information (OSTI), October 2004. http://dx.doi.org/10.2172/911230.

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Khericha, S. T., and R. C. Pedersen. Experiment Safety Assurance Package for the 40- to 52-GWd/MT Burnup Phase of Mixed Oxide Fuel Irradiation in Small I-hole Positions in the Advanced Test Reactor. Office of Scientific and Technical Information (OSTI), September 2003. http://dx.doi.org/10.2172/910624.

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