65 research outputs found

    MULTIVARIATE ANALYSIS FOR UNDERSTANDING COGNITIVE SPEECH PROCESSING

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    MULTIVARIATE ANALYSIS FOR UNDERSTANDING COGNITIVE SPEECH PROCESSIN

    Brain Connectivity Analysis of Normal Hearing and Hearing Impaired Participants Based on the Cortical Surface EEG Data

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    Hearing is an important sensory function of human communication and alerts people of dangerous conditions by detecting the emergency auditory alarm, sirens. We localized the source of EEG data (Hearing EEG data) into the cortical surface by solving the inverse problem and extracted the time series data from the 68 regions of Deskin-Killiany (DK) atlas. By using Granger Causality and Phase Transfer Entropy, we analyzed the brain connectivity of people experiencing normal hearing (NH) and hearing loss (HL). These results showed that NH and HL listeners’ connectivity levels are not the same. Moreover, we investigated which connectivities of the human brain are changed after hearing loss. We also performed a statistical analysis between eight regions of the brain; those are associated with the auditory and language processing tasks and significant changes were found in the primary Auditory and Broca’s areas. It is noticeable that HL listeners utilize the top-down modulation to perceive the sounds. Finally, we also found that neural and behavioral results are correlated

    Sensing and Automation Technologies for Ornamental Nursery Crop Production: Current Status and Future Prospects

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    The ornamental crop industry is an important contributor to the economy in the United States. The industry has been facing challenges due to continuously increasing labor and agricultural input costs. Sensing and automation technologies have been introduced to reduce labor requirements and to ensure efficient management operations. This article reviews current sensing and automation technologies used for ornamental nursery crop production and highlights prospective technologies that can be applied for future applications. Applications of sensors, computer vision, artificial intelligence (AI), machine learning (ML), Internet-of-Things (IoT), and robotic technologies are reviewed. Some advanced technologies, including 3D cameras, enhanced deep learning models, edge computing, radio-frequency identification (RFID), and integrated robotics used for other cropping systems, are also discussed as potential prospects. This review concludes that advanced sensing, AI and robotic technologies are critically needed for the nursery crop industry. Adapting these current and future innovative technologies will benefit growers working towards sustainable ornamental nursery crop production

    COMPARATIVE STUDY ON RING, ROTOR AND AIR-JET SPUN YARN

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    Although ring spinning is the universal spinning system but main limitation of this system is its limited spindle speed which causes lower production rate. Now-a-days spinners are trying to finding out various alternative spinning systems among which only rotor and air-jet has established market value. So it is very important for spinners to find out a suitable one according to end use and others economic aspects. Ring, Rotor and Air-jet spinning systems provide yarn with different structures and properties. Each system has its advantages and limitations in terms of technical feasibility and economic viability. We have produced 20's Ne, 100% cotton yarn from the above systems and their properties are tested by UT5 and lea strength tester. The main object of the project is to study the yarn properties (Um%, CVm%, Imperfection, Hairiness etc) of ring, rotor and air-jet spun yarn and compare among them. We observed how yarn properties are changed with the change of process. We analyzed the various yarn properties by the graphical representation

    COMPARATIVE STUDY ON RING, ROTOR AND AIR-JET SPUN YARN

    Get PDF
    Although ring spinning is the universal spinning system but main limitation of this system is its limited spindle speed which causes lower production rate. Now-a-days spinners are trying to finding out various alternative spinning systems among which only rotor and air-jet has established market value. So it is very important for spinners to find out a suitable one according to end use and others economic aspects. Ring, Rotor and Air-jet spinning systems provide yarn with different structures and properties. Each system has its advantages and limitations in terms of technical feasibility and economic viability. We have produced 20's Ne, 100% cotton yarn from the above systems and their properties are tested by UT5 and lea strength tester. The main object of the project is to study the yarn properties (Um%, CVm%, Imperfection, Hairiness etc) of ring, rotor and air-jet spun yarn and compare among them. We observed how yarn properties are changed with the change of process. We analyzed the various yarn properties by the graphical representation

    Novel genetic algorithm towards implementing a lining-layout optimization strategy.

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    This paper presents the strategies for optimizing planting areas.The three strategies considered for preparing field lining; 1) 600 line-direction 2) selecting the best line-direction for single block and 3) selecting the best line-directions for many separate blocks,might lead to different numbers of trees. Thus, an application named Lining-Layout Planning by Intelligent Computerized System(LLP-ICS) is introduced to choose the best strategy. Because there are many possible solutions with ambiguous results, a novelty of Genetic Algorithm (GA) for lining-layout with focusing on the two approaches which are 1) assigning the determined random values to the genes of chromosome, 2)avoiding the same solution of optimal blocks occurs, was applied to suggest the optimal solution intelligently. The aim of this study was to suggest the best strategy among the various area coordinates tested. In addition, the capability of the application by novel GA was also examined. The results indicated that the LLP-ICS produces a consistent solution with feasible results and less number of repetition processes led to reduce the computation time

    Prelimanary study on designing optimal lining layout by metaheuristic approaches for optimizing planting areas

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    This paper presents an investigation on application of metaheuristic approaches to handle the optimization of planting areas with regards to Lining Layout Planning (LLP). Metaheuristic is approximate solution that sacrifice the guarantee of finding an optimal solution. However, it is an appropriate approach to be employed in two basic situations: 1. a problem may not has an exact method because of ambiguities in the problem statement, 2. a problem may has an axact solution but computational cost of finding it may be prohibitive. The optimization startegy in LLP is to optimize a planting area by looking for the best line direction to be assigned into determining blocks with attention to minimize unused space and maximize number of tree. However, there are many possible solutions to be analyzed will eventually spend high time is a challenge. Therefore, the applicabilty of approaches to overcome this problem was investigated and simulated result was reported. We found that the exact solution methods are suitable for LLP with one block but many blocks with weighted consideration will increase time exponentially and metaheuristic approaches are considered as the appropriate technique

    RAZNOLIKOST IHTIOFAUNE JUŽNIH OBALNIH VODA BANGLADEŠA: POSTOJEĆE STANJE, PRIJETNJE I MOGUĆNOSTI OČUVANJA

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    Despite the enormous anthropogenic and environmental hazards affecting wild fisheries resources, southern coastal waters are still considered one of the aquatic biodiversity hotspots in Bangladesh. Therefore, the present study was conducted to make a complete account of fishes and to assess their condition and conservation status in the rivers spread across four southern coastal districts of Bangladesh. During the study period from January to December 2014, a total of 98 species of fish were recorded belonging to 81 genera, 48 families and 13 orders. Perciforms were recorded as the most diverse fish group in terms of both number and individuals of species observed. Of the 98 species, 26.53% were listed as Locally Threatened in Bangladesh, including 11.22% species listed as Vulnerable, 10.20% as Endangered and 5.10% as Critically Endangered. Four population indices viz, Shannon–Wiener index (H), Simpson’s dominance index (D), Simpson’s index of diversity (1-D) and Margalef’s index (d) were applied to demonstrate the species diversity, richness and evenness of fish in sampling areas and their overall values were 3.54-3.70, 0.04-0.05, 0.95-0.96 and 7.48-8.67, respectively. To sustain the prospect of fisheries biodiversity in the southern coastal areas of Bangladesh, management and conservation strategies like restocking economically important fish species, establishing and maintaining fish sanctuaries, banning indiscriminate fishing and destructive fishing gears, identification and protection of the breeding and nursery grounds should be taken into consideration with utmost priority.Unatoč visokoj ugroženosti brojnim antropogenim i ekološkim faktorima koji utječu na ribolovne resurse, južne priobalne vode se još uvijek smatraju jednom od vodenih vrućih točki biološke raznolikosti u Bangladešu. Ova je studija provedena da bi se utvrdila brojnost riba, ocijenilo njihovo stanje i status zaštite u rijekama koje se prostiru preko četiri južne priobalne oblasti Bangladeša. Tijekom istraživanja, u razdoblju od siječnja do prosinca 2014. godine, zabilježeno je ukupno 98 vrsta riba koje pripadaju 81 rodu, 48 porodica i 13 rodova. Najveću raznolikost u broju jedinki i broju vrsta utvrđena je kod skupine Perciformes. Od 98 vrsta, 26,53% su navedene kao lokalno ugrožene u Bangladešu, uključujući 11,22% vrsta koje su navedene kao ranjive, 10,20% kao ugrožena i 5,10% kao kritično ugrožene. Pri istraživanju četiri populacije utvrđeni su Shannon–Wiener indeks (H), Simpsonov indeks dominacije (D), Simpson indeks raznolikosti (1-D) i Margalefov indeks (d) kako bi se utvrdila raznolikost i bogatstvo vrsta u području istraživanja, čija je ukupna vrijednost iznosila 3,54-3,70, 0,04-0,05, 0,95-0,96 7,48-8,67. Za održanje perspektive ribarske bioraznolikosti u južnim priobalnim područjima Bangladeša, treba uzeti u obzir s najvećim prioritetom strategiju upravljanja i očuvanja kao i poribljavanja gospodarski važnih vrsta riba, uz uspostavljanje i održavanje ribljih skloništa, te zabranu nekritičnog ribolova i destruktivnih ribolovnih alata, identifikaciju i zaštitu područja mrijesta i rastilištu
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