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An evaluation of digital elevation modeling in GIS and Cartography

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Geo-Spatial Information Science 2014年第2期17卷 139-144页

作者： Bola AYENI Kayode Julius samuel Department of Geography University of IbadanIbadanNigeria Department of Geography&Resource Management Osun State UniversityOkukuNigeria

This study considers seven commonly used surface fitting methods within Golden Software and ArcGIS^(TM) *** grid sizes of 68 rows by 100 columns(6800 grids)and 680 rows by 1000 columns(680,000 grids)and 294,208 elevation points covering the entire landmass of Nigeria,the study evaluates the performance of these methods in terms of execution time and faithfulness in the representation of the spatial *** show marked differences in time taken to execute the fitting and that Inverse Distance,the Natural Neighbor,the Nearest Neighbor,and Triangulation with Linear Interpolation seem to give the highest level of correspondence or faithfulness.

关键词： image surface fitting digital elevation modelling GIS cartography

On Models of Nonlinear Evolution Paths in Adiabatic Quantum Algorithms

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Communications in Theoretical Physics 2013年第1期59卷 22-26页

作者：孙杰路松峰 samuel L.Braunstein School of Computer Science Huazhong University of Science and Technology Department of Computer Science University of York

In this paper,we study two different nonlinear interpolating paths in adiabatic evolution algorithms for solving a particular class of quantum search problems where both the initial and final Hamiltonian are one-dimensional projector Hamiltonians on the corresponding ground *** the overlap between the initial state and final state of the quantum system is not equal to zero,both of these models can provide a constant time speedup over the usual adiabatic algorithms by increasing some another corresponding "complexity".But when the initial state has a zero overlap with the solution state in the problem,the second model leads to an infinite time complexity of the algorithm for whatever interpolating functions being applied while the first one can still provide a constant running ***,inspired by a related reference,a variant of the first model can be constructed which also fails for the problem when the overlap is exactly equal to zero if we want to make up the "intrinsic" fault of the second model - an increase in *** concrete theorems are given to serve as explanations why neither of these two models can improve the usual adiabatic evolution algorithms for the phenomenon *** just tell us what should be noted when using certain nonlinear evolution paths in adiabatic quantum algorithms for some special kind of problems.

关键词： adiabatic evolution nonlinear evolution paths quantum computing

Pharmacogenomics of EGFR-targeted therapies in non-small cell lung cancer:EGFR and beyond

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Chinese Journal of Cancer 2015年第4期34卷 149-160页

作者： Christopher Delaney samuel Frank R Stephanie Huang Biological Sciences Division University of Chicago Department of Medicine University of Chicago The Affiliated Hospital School of MedicineNingbo University

Commonly observed aberrations in epidermal growth factor receptor(EGFR) signaling have led to the development of EGFR-targeted therapies for various cancers,including non-small cell lung cancer(NSCLC).EGFR mutations and overexpression have further been shown to modulate sensitivity to these EGFR-targeted therapies in NSCLC and several other types of ***,it is clear that mutations and/or genetic variations in EGFR alone cannot explain all of the variability in the responses of patients with NSCLC to EGFR-targeted *** instance,in addition to EGFR genotype,genetic variations in other members of the signaling pathway downstream of EGFR or variations in parallel receptor tyrosine kinase(RTK) pathways are now recognized to have a significant impact on the efficacy of certain EGFR-targeted *** this review,we highlight the mutations and genetic variations in such genes downstream of EGFR and in parallel RTK ***,the directional effects of these pharmacogenetic factors are discussed with a focus on two commonly prescribed EGFR inhibitors:cetuximab and *** results of this comprehensive review can be used to optimize the treatment of NSCLC with EGFR ***,they may provide the rationale for the design of subsequent combination therapies that involve the inhibition of EGFR.

关键词：表皮生长因子受体非小细胞肺癌药物基因组学 EGFR 靶向治疗信号传导途径受体酪氨酸激酶遗传变异

Experimental evaluation of autonomous map-based Spot navigation in confined environments

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Biomimetic Intelligence & Robotics 2022年第1期2卷 50-58页

作者： Anton Koval samuel Karlsson George Nikolakopoulos Robotics&AI Team Deparment of ComputerElectrical and Space Engineering.Luled University of TechunologyLuled SE-97187Sweden

In this article,we address the task of experimental evaluation of autonomous map-based navigation of a Boston Dynamics Spot quadruped robot in confined environments equipped with the developed autonomy package that incorporates a 3D lidar,an IMU,and an onboard *** that,we propose an integrated software and hardware system that is considered as an enabler for robot localization and risk-aware path planning,based on the known *** system design itself is modular and incorporates the perception capabilities required for autonomous *** Spot robot first is utilized to build the offline map of the environment by utilizing the Google Cartographer simultaneous localization and mapping(SLAM)*** the next step,the online environmental information from the autonomy package sensors and the offline map are provided to the onboard computer to localize the robot on the known map by utilizing means provided by ***,the occupancy information is provided to the online grid-based path planner that generates risk-aware *** extensive experimental evaluation of the proposed system is performed in corridors and SubT environments.

关键词： Spot SubT Map-based navigation 3D lidar Autonomy package

A systematic literature review to explore sustainable energy development practices in Mozambique

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Clean Energy 2023年第6期7卷 1330-1343页

作者： samuel Aires Master Lazaro Vanessa Fathia Baba College of Civil Engineering Taiyuan University of TechnologyNo.79 West Street YingzeTaiyuan 030024ShanxiPR China College of Economics&Management Taiyuan University of TechnologyNo.79 West Street YingzeTaiyuan 030024ShanxiPR China

This study thoroughly evaluates sustainable energy practices in Mozambique,identifies suitable activities and suggests future re-search *** authors meticulously detail the research tasks undertaken to achieve the primary objective of the study,including organizing articles by publication year,journal and conference papers;identifying the most frequently cited articles;and recognizing countries that have made significant contributions to the concept of sustainable *** study highlights the most relevant sustainable energy development practices for Mozambique,identifies suitable activities and suggests future research *** rigorous analysis,six significant areas of sustainable energy development were identified,including renewable energy(RE)resources,environmental science,social sciences,computer science,management and accounting,and Earth and planetary *** study used Scopus as the selected multidisciplinary peer-reviewed citation database on 20 February 2023,resulting in 76 *** study has been conducted nationwide for several months and thoroughly investigates various resources such as hydro,wind,solar,biomass and geothermal *** achieves this by evaluating and characterizing the power generation potential of each RE resource and,in addition,identifying and examining numerous projects at the technical and economic feasibility level to promote the potential of projects and the advantages of RE for the sustainable development of *** findings indicate that for sustainable energy development in Mozambique,it is crucial to introduce more policies to support the effectiveness of RE systems while involving the private *** achieve this,measures such as reducing investment risks,guaranteeing investment returns and establishing a transparent regulatory framework are *** steps will attract substantial investments,resolve conflicts and motivate key stakeholders to actively participate in the p

关键词： developing countries Mozambique sustainable development renewable energy systematic literature review Scopus

Improving water use efficiency by integrating fish culture and irrigation in coconut based farming system:A case study in Kasaragod District of Kerala(India)

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International Journal of Agricultural and Biological Engineering 2014年第2期7卷 36-44页

作者： Manoj P.samuel A.C.Mathew National Academy of Agricultural Research Management Hyderabad-500030India Central Plantation Crops Research Institute KasaragodKerala-671124India

The crop production in the district of Kasaragod in Kerala State(India)is characterized by low input-low yield concept and rain-fed agriculture.A field study was conducted in Western Ghat region of the district to develop a suitable rainwater harvesting system adoptable to hilly terrains and to test its efficacy for improving the use efficiency of the harvested water by its multiple *** cost-benefit analysis of the water harvesting system was also carried out to find out its affordability to *** water harvesting system has been developed by integrating three components:(i)improving the productivity of coconut and component crops in the cropping units(ii)developing multiple water use systems,and(iii)the conjunctive use of the harvested water along with other surface and groundwater *** on the estimated annual costs and returns,the Benefit-Cost ratio was found to be 1.69 and all other financial viability criteria(IRR and NPV)were also found favourable for investment on a lined water harvesting tank integrated with a micro-irrigation system and fish *** study suggested that the rainwater harvesting could be implemented as a viable alternative to conventional water supply or on-farm irrigation projects considering the fact that any land anywhere can be used to harvest ***,the water use efficiency can be improved through effective harvesting and subsequent multiple uses of stored water.

关键词： rainwater harvesting water use efficiency plastic lined tank seepage loss fish culture financial viability

Cellular and Circuitry Bases of Autism:Lessons Learned from the Temporospatial Manipulation of Autism Genes in the Brain

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Neuroscience Bulletin 2017年第2期33卷 205-218页

作者： samuel W.Hulbert Yong-hui Jiang Department of Neurobiology School of MedicineDuke UniversityDurhamNC 27710USA Department of Pediatrics School of MedicineDuke UniversityDurhamNC 27710USA Program in Genetics and Genomics School of Medicine Duke UniversityDurhamNC 27710USA

Transgenic mice carrying mutations that cause Autism Spectrum Disorders（ASDs） continue to be valuable for determining the molecular underpinnings of the disorders. Recently, researchers have taken advantage of such models combined with Cre-lox P and similar systems to manipulate gene expression over space and time. Thus, a clearer picture is starting to emerge of the cell types, circuits, brain regions, and developmental time periods underlying ASDs. ASD-causing mutations have been restricted to or rescued speci？cally in excitatory or inhibitory neurons, different neurotransmitter systems, and cells speci？c to the forebrain or cerebellum. In addition,mutations have been induced or corrected in adult mice,providing some evidence for the plasticity and reversibility of core ASD symptoms. The limited availability of Cre lines that are highly speci？c to certain cell types or time periods provides a challenge to determining the cellular and circuitry bases of autism, but other technological advances may eventually overcome this obstacle.

关键词： Autism Mouse models Behavior CreloxP Cerebellum Critical period

Fish-on-Chips:unveiling neural processing of chemicals in small animals through precise fluidic control

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Neural Regeneration Research 2024年第11期19卷 2351-2353页

作者： samuel K.H.Sy Ho Ko Division of Neurology Department of Medicine and TherapeuticsFaculty of MedicineThe Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina Li Ka Shing Institute of Health Sciences Faculty of MedicineThe Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina Department of Electrical and Electronic Engineering Faculty of EngineeringThe University of Hong KongPok Fu LamHong Kong IslandHong Kong Special Administrative RegionChina Advanced Biomedical Instrumentation Center Hong Kong Science ParkPak Shek KokNew TerritoriesHong Kong Special Administrative RegionChina Margaret K.L.Cheung Research Center for Management of Parkinsonism Faculty of MedicineThe Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina Lau Tat-chuen Research Center of Brain Degenerative Diseases in Chinese Faculty of MedicineThe Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina Gerald Choa Neuroscience Institute The Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina

Precise chemical cue presentation alongside advanced brainwide imaging techniques is important to the study of chemosensory processing in ***,the dynamic nature of chemical-carrying media,such as water or air,poses a significant challenge for delivering highly-controlled chemical flow to an animal ***,contact-based cue manipulation and delivery easily shift the position of the animal subject,which is often undesirable for high-quality brain ***,more advanced interfacing tools that align with the diverse range of body part sizes of an animal,ranging from micrometer-scale neurons to meter-long limbs,are much *** is particularly crucial when dealing with dimensions that are beyond the reach of conventional experimental tools.

关键词： dealing precise sizes

Evaluation of modified adaptive k-means segmentation algorithm

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Computational Visual Media 2019年第4期5卷 347-361页

作者： Taye Girma Debelee Friedhelm Schwenker samuel Rahimeto Dereje Yohannes Institute of Neural Information Processing Ulm University89081UlmGermany Addis Ababa Science and Technology University Addis Ababa120611Ethiopia

Segmentation is the act of partitioning an image into different regions by creating boundaries between regions.k-means image segmentation is the simplest prevalent ***,the segmentation quality is contingent on the initial parameters(the cluster centers and their number).In this paper,a convolution-based modified adaptive k-means(MAKM)approach is proposed and evaluated using images collected from different sources(MATLAB,Berkeley image database,VOC2012,BGH,MIAS,and MRI).The evaluation shows that the proposed algorithm is superior to k-means++,fuzzy c-means,histogrambased k-means,and subtractive k-means algorithms in terms of image segmentation quality(Q-value),computational cost,and *** proposed algorithm was also compared to state-of-the-art learning-based methods in terms of IoU and MIoU;it achieved a higher MIoU value.

关键词： clustering modified adaptive k-means(MAKM) segmentation Q-value