Remote Sensing Image Classification for Land Cover Mapping in Developing Countries: A Novel Deep Learning Approach

Lynda, Nzurumike Obianuju,Nnanna, Nwojo Agwu,Boukar, Moussa Mahamat International Journal of Computer ScienceNetwork S 2022 International journal of computer science and netw Vol.22 No.2

Convolutional Neural networks (CNNs) are a category of deep learning networks that have proven very effective in computer vision tasks such as image classification. Notwithstanding, not much has been seen in its use for remote sensing image classification in developing countries. This is majorly due to the scarcity of training data. Recently, transfer learning technique has successfully been used to develop state-of-the art models for remote sensing (RS) image classification tasks using training and testing data from well-known RS data repositories. However, the ability of such model to classify RS test data from a different dataset has not been sufficiently investigated. In this paper, we propose a deep CNN model that can classify RS test data from a dataset different from the training dataset. To achieve our objective, we first, re-trained a ResNet-50 model using EuroSAT, a large-scale RS dataset to develop a base model then we integrated Augmentation and Ensemble learning to improve its generalization ability. We further experimented on the ability of this model to classify a novel dataset (Nig_Images). The final classification results shows that our model achieves a 96% and 80% accuracy on EuroSAT and Nig_Images test data respectively. Adequate knowledge and usage of this framework is expected to encourage research and the usage of deep CNNs for land cover mapping in cases of lack of training data as obtainable in developing countries.

Asymmetric Oligopoly and Foreign Direct Investment: Implications for Host-Country Tax-Setting

Lynda A. Porter 한국국제경제학회 2012 International Economic Journal Vol.26 No.2

We present a duopoly model with heterogeneous firms that vary in cost-efficiency, each of which can choose to serve a foreign market by either exporting or local production. We do so to analyse the effects of a host-country corporate profit tax on both the scale and composition of FDI, and find that: strategic interaction between oligopolistic firms provides for a pattern of FDI that favours cost-inefficiency to the detriment of host-country welfare; and the host-country tax rate can be optimally used to avoid such patterns of FDI and instead promote direct investment by a relatively cost-efficient firm.

Political Exiles as Colonial Agents(식민 활동가로서의 정치적 유형수: 1860-1890년대 시베리아에서 러시아 지리학 협회의 활동과 정치범 출신 탐사자들의 역할)

Lynda Yoon-Sun Park 서울대학교 러시아연구소 2003 러시아연구 Vol.13 No.1

이 논문은 19세기 후반 제정 러시아에서 시베리아에 유배된 정치범들이 이 지역의 탐사에 동원되면서 결과적으로 식민 활동가의 역할을 하게 되었음을 밝히고자 한 것이다. 정치범들이 시베리아 탐사에 동원된 것은 러시아 제국 지리학 협회(RGS) 시베리아 지부 - 1878년부터는 동(東)시베리아 지부 - 의 주선에 따른 것이다. 이 협회의 본부는 원래 자유주의적 성향의 인물들이 주도하였으나, 시베리아 지부는 제국주의적인 경향을 좀더 강하게 띠고 있었다. 즉 이 단체는 시베리아 전역에 대한 러시아의 지배권을 확립하는데 기여하려는 의도를 가지고 있었다. 이를 위해서는 오지·미개척지에 대한 탐사가 불가결하였는데, 이 목적을 위한 최적의 인력으로 선택된 것이 시베리아에 유배된 정치범들이었다. 정치범들은 1)탐사에 필요한 학문적·지적 능력을 갖추고 있으면서 이를 활용할 기회를 가지기를 바라고 있었고 2)유형수라는 지위에서 비롯되는 법적 제약 때문에 시베리아를 벗어나지 못할 뿐 아니라 정부의 통제 자체를 벗어나지 못하는 처지였으며 3) 그들의 궁핍한 경제적 상황 때문에 생활에 필요한 재정적 지원을 절실하게 원하고 있었다. 러시아 제국 지리학 협회의 시베리아 지부는 이들의 이러한 처지를 이용하여 이들을 시베리아 각지의 탐사에 동원하였다. 이에 따라 1860-70년대에는 역사학자인 쉬차포프, 폴란드 정치범인 체카노프스키, 크센조폴스키, 체르스키, 두보프스키 등이 시베리아 지역에 대한 인류학적, 동식물학적, 지질학적 탐사를 수행하였다. 1880-90년대에는 시베리아 지역주의자(oblastniki)에 속하는 정치범들이 비슷한 성격의 탐사를 계속하였다. 시베리아 현지 출신 러시아 지식인들로 이루어진 시베리아 지역주의자들은 러시아인들의 착취에 대항하기 위해 시베리아 현지인들을 교육·계몽할 필요성을 역설하였고, 이를 위해 역시 제국 지리학 협회의 동(東)시베리아 지부의 지원을 받아 시베리아 일대에 대한 인류학적·지리학적 연구를 수행하였다. 포타닌, 야드린체프, 클레멘츠 등이 그 대표적 인물들이다. 현지인들을 해방하기 위한 교육· 계몽 목적의 탐사에는 페카르스키, 보고라스 등 인민주의자 출신의 정치범들도 참여하였다. 이들의 연구를 통해 시베리아의 주민·지리·식생·자원에 대한 광범한 지식이 축적될 수 있었다. 이러한 지식은 제정 러시아 말기, 소비에트 정권 초기에 유럽지역 러시아인들이 시베리아 지역을 효과적으로 지배하는 데 대단히 중요한 정보를 제공해 주었다. 뿐만 아니라, 이들 정치범 출신 탐사자들 가운데 일부는 자신들의 ‘문명화’ 사명을 확신한 나머지, 소비에트 초기에 이르러서는 시베리아에 대한 유럽 러시아인들의 계몽활동의 중요성을 역설하였으며, 이로써 이 지역에 대한 러시아인들의 통제권이 강화되는 데 앞장서기도 하였다. 제정 러시아의 지배체제에 저항하여 유배된 인물들인 정치범들이 자신들의 원래의 의도와는 별도로, 결과적으로 시베리아 지역에서 러시아의 지배권이 확장되는데 일조하게 된 것은 역설적이다.

Analytical study of bending and free vibration responses of functionally graded beams resting on elastic foundation

Lynda Amel Chaabane,Fouad Bourada,Mohamed Sekkal,Sara Zerouati,Fatima Zohra Zaoui,Abdeldjebbar Tounsi,Abdelhak Derras,Abdelmoumen Anis Bousahla,Abdelouahed Tounsi 국제구조공학회 2019 Structural Engineering and Mechanics, An Int'l Jou Vol.71 No.2

In this investigation, study of the static and dynamic behaviors of functionally graded beams (FGB) is presented using ahyperbolic shear deformation theory (HySDT). The simply supported FG-beam is resting on the elastic foundation (Winkler-Pasternak types). The properties of the FG-beam vary according to exponential (E-FGB) and power-law (P-FGB) distributions. Thegoverning equations are determined via Hamilton’s principle and solved by using Navier’s method. To show the accuracy of thismodel (HySDT), the current results are compared with those available in the literature. Also, various numerical results are discussedto show the influence of the variation of the volume fraction of the materials, the power index, the slenderness ratio and the effect ofWinkler spring constant on the fundamental frequency, center deflection, normal and shear stress of FG-beam.

The Osteocyte Network as a Source and Reservoir of Signaling Factors

Lynda F. Bonewald 대한내분비학회 2010 Endocrinology and metabolism Vol.25 No.3

Within the past few years, information regarding osteocyte function as been emerging and expanding significantly. No longer is the osteocyte considered a passive cell acting simply as a ‘placeholder’ within mineralized bone. Osteocytes are derived from osteoblast progenitors and in the adult skeleton compose 90-95% of all bone cells. Therefore, the function of these cells in the adult and aging skeleton has become the focus of recent investigation. These cells are proving to be multifunctional, ranging from mechanotransduction,to regulation of mineral homeostasis, to control of bone remodeling. The osteocyte as a source and reservoir of signaling factors important in health and maintenance of the adult skeleton is addressed in this review.

Teaching Creativity in America Colleges and Universities : Faculty Perceptions of Course Goals, Assignment, and Focus of Evaluation

Lynda Baloche,Kay S. Bull,Diane Montgomery 한국영재학회 1993 영재교육연구 Vol.2 No.1

In July of 1990, approximately fifty teachers of creativity meet at the Alden B. Dow Creativity Center, of the Northwood Institute in Midland, Michigan, for the First National Conference on Creativity in American Colleges and Universities. This conference, prompted by the work of McDonoug and McDonough(1987), was an exciting opportunity for university level teachers of creativity to gateher and talk about what they believed, what they taught, and how they taught. To facilitate discussing, and as a gesture of open sharing, most participants brought with them copies of their course syllavi. At this first conference, considerable, and sometimes heated, discussion focused on overall course goals, the experiences, projects, and products "required" as assignments in courses, and the evaluation of these requirements. While the diversity of opinion of those present soon became clear, many participants were left questioning if the opinions heard and syllabi offered at this conference were representative of what was being done nationally. The present study is born from that question.

Dexrazoxane(CARDIOXANE) : A Review of its Use as a Cardioprotective Agent in Patients Receiving Anthracycline-Based Chemotherapy

Wiseman, Lynda R.,Spencer, Caroline M. 약업신문사 2000 의약정보 Vol.2000 No.11

Teaching Creativity in American Colleges and Universities : Faculty Perceptions of Course Goals, Assignments, and Focus of Evaluation

Baloche, Lynda,Bull, Kay-S.,Montgomery, Diane The Korean Society for the Gifted 1993 영재교육연구 Vol.2 No.1

Fumigant toxicity of Lavandula spica essential oil and linalool on different life stages of Tribolium confusum (Coleoptera: Tenebrionidae)

Kheloul Lynda,Anton Sylvia,Gadenne Christophe,Kellouche Abdellah 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.2

The confused flour beetle, Tribolium confusum, is a common and severe pest of stored products. Here, using fumigation tests during four different exposure times, we evaluated the toxicity of different doses of essential oil of spike lavender, Lavandula spica and one of its major constituents, linalool, on different life stages of T. confusum under laboratory conditions. The toxicity of the L. spica oil and linalool varied as a function of the developmental stage and treatment duration. Young larvae (L1) were the most susceptible to toxic effects, with LC 50 = 19.535 μl/L of air for L. spica oil and LC 50 = 14.198 μl/L of air for linalool after 24 h of exposure, whereas older larvae (L8) were affected only very little by fumigation. Linalool caused higher egg mortality than L. spica oil at equivalent doses, but lower mortality in pupae and adults. Emergence of intact adult insects from surviving eggs, larvae and pupae was further reduced as a function of dose and exposure time to both L. spica oil and linalool compared to control-treated insects. Our results show that L. spica oil and linalool might be suitable for biological control of T. confusum, but tests at a larger scale are necessary to confirm our results.

Cisapride

Wiseman, Lynda R.,Faulds, Diana Medical Publications Korea 1994 Medical Progress Vol.16 No.8