National Academy Science Letters最新文献_第10页

Hybridized KNN-Random Forest Algorithm: Image Demosaicing with Reduced Artifacts 杂化knn -随机森林算法:减少伪影的图像去马赛克

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-09-14 DOI: 10.1007/s40009-022-01165-z

Gurjot Kaur Walia, Jagroop Singh Sidhu

{"title":"Hybridized KNN-Random Forest Algorithm: Image Demosaicing with Reduced Artifacts","authors":"Gurjot Kaur Walia, Jagroop Singh Sidhu","doi":"10.1007/s40009-022-01165-z","DOIUrl":"10.1007/s40009-022-01165-z","url":null,"abstract":"<div>Demosaicing is a necessary step in the image processing process in many digital colour cameras. The demosaicing approach creates a full-colour image from a single-sensor array raw image enclosed with a colour filter array. This work proposes a hybrid technique for automatically identifying CFA patterns and demosaicing methods from noise variance distributions. The image interpolation is completed by using the previously demonstrated G, R, and B planes using five techniques, viz. linear, nearest, cubic, rational, v4 for 7 × 7 kernel size. The degree of sharpening to be tested on each image was determined using fundamental experimental findings. The simulation findings show that the KNN and random forest algorithms improve the efficiency of the original images by reducing false colours. Furthermore, the suggested hybrid technique outperforms earlier demosaicing algorithms in terms of average PSNR measurement. Also, the results for structural similarity index and mean structural similarity index justify the significance of reported work.\u0000</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"45 6","pages":"517 - 520"},"PeriodicalIF":1.1,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40009-022-01165-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4591151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Millet Production and Consumption in India: Where Do We Stand and Where Do We Go? 印度的小米生产和消费:我们站在哪里，我们要去哪里?

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-09-07 DOI: 10.1007/s40009-022-01164-0

Asha Devi Sukumaran Sreekala, P. Anbukkani, Alka Singh, B. Dayakar Rao, Girish K. Jha

引用次数: 4

A Low complexity Spatial Mapping Assisted Companding Scheme (SMaCS) for PAPR Minimization in OFDM Systems 一种用于OFDM系统中PAPR最小化的低复杂度空间映射辅助扩展方案

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-09-03 DOI: 10.1007/s40009-022-01158-y

R. Jaikumar, M. A. Mukunthan, C. Arvind, R. Lavanya, K. Srihari

引用次数: 1

Report of Chrysaora caliparea (Reynaud, 1830) Swarm from the Coastal Waters of Odisha, Western Bay of Bengal 孟加拉湾西部奥里萨邦沿海水域的Chrysaora caliparea (Reynaud, 1830)虫群报告

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-09-01 DOI: 10.1007/s40009-022-01140-8

C. Praveen Raj, Alfisa Siddique, Aishee Bhowal, Haritha Prasad, Jasmine Purushothaman

{"title":"Report of Chrysaora caliparea (Reynaud, 1830) Swarm from the Coastal Waters of Odisha, Western Bay of Bengal","authors":"C. Praveen Raj, Alfisa Siddique, Aishee Bhowal, Haritha Prasad, Jasmine Purushothaman","doi":"10.1007/s40009-022-01140-8","DOIUrl":"10.1007/s40009-022-01140-8","url":null,"abstract":"<div>A massive congregation of scyphozoan jellyfish Chrysaora caliparea (Reynaud, in: Lesson (ed) Centurie Zoologique, ou choix d'animaux rares, nouveaux ou imparfaitement connus, F.G. Levrault, Paris, 1830) was encountered along the coastal waters of Rushikulya and Gopalpur, east coast of India during the winter monsoon survey of 2021, adding a new swarm record to the Indian waters. This sudden drastic outburst of C. caliparea outlined thousands of live specimens, with the abundance ranging from 400 ± 70 ind./m3 to 550 ± 60 ind./m3 in Gopalpur and Rushikulya, respectively. On the contrary, the average abundance of phytoplankton and microzooplankton was on the downturn. The mean sea surface salinity (SSS), sea surface temperature (SST), and Chlorophyll-a concentration were 33.60 psu, 26.62 °C, 0.75 mg/m3, respectively, in Rushikulya and 33.44 psu, 26.48 °C, 0.57 mg/m3, respectively, in Gopalpur swarm stations. Dissolved oxygen (DO) was marked high in Gopalpur. Together, our study delineates the swarm-forming potential of Rushikulya and Gopalpur waters, pointing to the need for more research into how various factors can impede ecosystem balance in these vital Indian coastal areas.</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"45 6","pages":"491 - 495"},"PeriodicalIF":1.1,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40009-022-01140-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4061895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First Report on Genetic Resource Distribution of Acer caesium in Northwestern Himalayas 西北喜马拉雅地区铯槭遗传资源分布初报

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-08-26 DOI: 10.1007/s40009-022-01159-x

Kritika Suman, Maneesh S. Bhandari, Shailesh Pandey, Harish S. Ginwal, Rajendra K. Meena

{"title":"First Report on Genetic Resource Distribution of Acer caesium in Northwestern Himalayas","authors":"Kritika Suman, Maneesh S. Bhandari, Shailesh Pandey, Harish S. Ginwal, Rajendra K. Meena","doi":"10.1007/s40009-022-01159-x","DOIUrl":"10.1007/s40009-022-01159-x","url":null,"abstract":"<div>Acer, a keystone genus in its habitat, has a wide range of distribution across the globe. A total of 15 species of Acer combining both northwestern and eastern Himalayas are reported from India. Among them, A. caesium offers a wide range of ecological and economical value, still this species has neither been studied well nor given the required attention in terms of its conservation and management. To understand the current distribution status of A. caesium in its natural range, extensive field surveys were conducted in Uttarakhand during 2021. The information collected from the literature and field survey, lead us to conclude that the A. caesium is a keystone species occurring in 5 forest types, namely 12/C1, 12/C1e, 12/C1/DS2, 12/C2a and 15/C1, of northwestern Himalayas. It does not only affect the species alone but also the other biodiversity dependent directly and indirectly on it. Hence, the current study provides an overall opportunity to formulate more feasible and sustainable measures for A. caesium conservation in the northwestern Himalayas.\u0000</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"45 5","pages":"445 - 450"},"PeriodicalIF":1.1,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5001122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First Report of Cymothoid Isopod Nerocila kisra Bowman and Tareen, 1983 (Family: Cymothoidae) from India 印度棘足类等足类Nerocila kisra Bowman and Tareen首次报告(科:棘足科)

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-08-26 DOI: 10.1007/s40009-022-01154-2

Sanmitra Roy, Sandeep Kumar Mohapatra, Santanu Mitra, Jaya Kishor Seth, Basudev Tripathy, Anil Mohapatra

引用次数: 0

Naturally Fluorescent Field Mouse, Mus booduga (Gray, 1837) and Common House Gecko, Hemidactylus frenatus (Schlegel, 1836) as Model Organisms for Biomedical Studies 自然荧光田鼠，布杜格鼠(Gray, 1837)和普通屋壁虎，半爪鼠frenatus (Schlegel, 1836)作为生物医学研究的模式生物

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-08-26 DOI: 10.1007/s40009-022-01138-2

Chatragadda Ramesh

{"title":"Naturally Fluorescent Field Mouse, Mus booduga (Gray, 1837) and Common House Gecko, Hemidactylus frenatus (Schlegel, 1836) as Model Organisms for Biomedical Studies","authors":"Chatragadda Ramesh","doi":"10.1007/s40009-022-01138-2","DOIUrl":"10.1007/s40009-022-01138-2","url":null,"abstract":"<div>Since the discovery of the Green fluorescent protein from crystal jellyfish Aequorea victoria, many fluorescent organisms have been identified from different parts of the world. As a result, various fluorescent proteins such as GFP, RFP, and DsRed are discovered and widely used in genetic engineering studies to label a wide range of proteins and genes in mouse models. In bioimaging research, a variety of mouse models are used to visualize fluorescence-based phenotypic variations. In this study, the field mouse, Mus booduga, and common house gecko Hemidactylus frenatus dispalyed natural blue fluorescence (440–480 nm). The fur of M. booduga and bones of H. frenatus have displayed blue fluorescence. These organisms may serve as a naturally fluorescent models in bioimaging studies to study phenotypic changes triggered by physico-chemical factors. This study infers that implication of fluorescent terrestrial chordates in evolutionary studies would delineate the origins (ocean to land) and phylogenetic pathways of fluorescent trait in eukaryotes.</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"45 6","pages":"567 - 571"},"PeriodicalIF":1.1,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40009-022-01138-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4994895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chlorpyrifos Root Dip Treatment Effect on Population of Singhara Beetle, Galerucella birmanica Jacoby, Natural Enemies and Yield of Water Chestnut 毒死蜱浸根处理对菱甲、白僵菌种群、天敌及荸荠产量的影响

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-08-25 DOI: 10.1007/s40009-022-01153-3

Vinod K. Padala, Ramya N, Mandla Rajashekhar, M. C. Keerthi, Manoj Kumar, S. M. Raut, I. S. Singh, Mohd. Monobrullah

{"title":"Chlorpyrifos Root Dip Treatment Effect on Population of Singhara Beetle, Galerucella birmanica Jacoby, Natural Enemies and Yield of Water Chestnut","authors":"Vinod K. Padala, Ramya N, Mandla Rajashekhar, M. C. Keerthi, Manoj Kumar, S. M. Raut, I. S. Singh, Mohd. Monobrullah","doi":"10.1007/s40009-022-01153-3","DOIUrl":"10.1007/s40009-022-01153-3","url":null,"abstract":"<div>Leaf beetle commonly called Singhara beetle, Galerucella birmanica, is the main insect pest in the water chestnut crop. In this experiment, we studied the control efficacy of Chlorpyrifos seedling root dip against Singhara beetle and its effect on the density of natural enemy population and yield of water chestnut under the field condition during 2021. The results revealed that seedling root dip with Chlorpyrifos @0.05% (RAMBAN®) effectively controls the Singhara beetle, where the minimum number of all the life stages was recorded on root dip-treated plants, and duration of root dip has no significant effect on Singhara beetle incidence. Seedling root dip has no adverse effect on natural enemy populations such as spiders and water striders. Further, the highest yield was recorded from 6 h of root dip treatment. Hence, the seedling root dip of water chestnut protects the crop against early stage infestation by Singhara beetle, thereby reducing the significant yield loss.</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"45 5","pages":"379 - 382"},"PeriodicalIF":1.1,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40009-022-01153-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5320969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Tight Approximation Towards the SEP Computation Over Nakagami-m Fading Channels Nakagami-m衰落信道上SEP计算的严密逼近

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-08-25 DOI: 10.1007/s40009-022-01162-2

Tanmay Mukherjee, Dilip Senapati

引用次数: 0

Dynamic Power Allocation to Improve an Existing SWIPT Cooperative NOMA Network 改进现有SWIPT合作NOMA网络的动态功率分配

IF 1.1 4区综合性期刊

National Academy Science Letters Pub Date : 2022-08-25 DOI: 10.1007/s40009-022-01141-7

Arun Kumar, Sumit Chakravarty

引用次数: 1