Utilization of Location-Based Services Using Augmented Reality Perception Method For Android Based School Search

Data technology has become the main means for activities in various sectors of life, one of which is location-based services for SMA/SMK schools in the Bangka Belitung area. By using a location-based service application, it is expected to be able to overcome the problem of finding the position of SMA/SMK in the Bangka Belitung area. In this study, we would like to discuss the search for SMA/SMK positions. Through the push, Location-Based Service will be displayed in the smartphone, which will help identify the presence of the school's position on the smartphone. The result of the application that is formed is an Android-based application that can recognize the presence of SMA/SMK positions. This study aims to create a location-based service application that is combined with the concept of overlaying geographic position information from augmented reality perception, which is one type of augmented reality. The overall application quality test results include 1). Based on the Functionality aspect, the percentage of the actual score got a total score of 91.8%. 2). Based on the aspect of reliability, the percentage of the actual score got a total score of 97.6%. 3). Based on the Usability aspect, the percentage of the actual score gets a total score of 92.2%. 4). Based on the aspect of efficiency, the percentage of the actual score gets a total value of 76.5%. 5). From the calculation of the total score in percent is 89.5%. So based on the total score in percent, it can be concluded that the overall application quality test results are 89.5%, so the prototypes produced in this study are included in very good criteria.

An Implementation and Modification of Routing Protocol Against Vehicular Adhoc Network

Today the sector is transferring toward wi-fi system. Wireless networks are gaining reputation to its height today, because the customers need wi-fi connectivity regardless of their geographic position. Vehicular advert-hoc networks (VANETs) are taken into consideration to be the unique software of infrastructure-much less wi-fi Mobile advert-hoc community (MANET). In those networks, motors are used as nodes. The thesis works is primarily based totally on assessment among Ad hoc on call for Distance Vector routing protocol (AODV) and Modified ADHOC call for distance vector routing (MAODV) in VANET on the idea of electricity, packet shipping ratio, throughout, overhead and give up to give up delay. Researchers are constantly publishing paperson overall performance paintings on VANET for this reason we labored at the issue. The gear which we used for the paintings of overall performance are NETWORK SIMULATOR (NS2).

CALCULATION OF POLARIZATION LOSSES FOR HF COMMUNICATION CHANNEL (PART 2)

The article is devoted to the description of the procedure for calculating the loss for polarization mismatch in the receiving antenna. The results of a computational experiment of these losses are presented as a function of the operating frequency, azimuth of the receiving antenna, its geographic position and the elevation angle of the rays at the reception center. Based on the results of the calculation, conclusions are drawn about the dependence of losses on various parameters, and practical recommendations are given on the location and polarization of receiving antennas.

Long-Term Community Dynamics Reveal Different Trajectories for Two Mid-Atlantic Maritime Forests

Maritime forests are threatened by sea-level rise, storm surge and encroachment of salt-tolerant species. On barrier islands, these forested communities must withstand the full force of tropical storms, hurricanes and nor’easters while the impact is reduced for mainland forests protected by barrier islands. Geographic position may account for differences in maritime forest resilience to disturbance. In this study, we quantify two geographically distinct maritime forests protected by dunes on Virginia’s Eastern Shore (i.e., mainland and barrier island) at two time points (15 and 21 years apart, respectively) to determine whether the trajectory is successional or presenting evidence of disassembly with sea-level rise and storm exposure. We hypothesize that due to position on the landscape, forest disassembly will be higher on the barrier island than mainland as evidenced by reduction in tree basal area and decreased species richness. Rate of relative sea-level rise in the region was 5.9 ± 0.7 mm yr−1 based on monthly mean sea-level data from 1975 to 2017. Savage Neck Dunes Natural Area Preserve maritime forest was surveyed using the point quarter method in 2003 and 2018. Parramore Island maritime forest was surveyed in 1997 using 32 m diameter circular plots. As the island has been eroding over the past two decades, 2016 Landsat imagery was used to identify remaining forested plots prior to resurveying. In 2018, only plots that remained forested were resurveyed. Lidar was used to quantify elevation of each point/plot surveyed in 2018. Plot elevation at Savage Neck was 1.93 ± 0.02 m above sea level, whereas at Parramore Island, elevation was lower at 1.04 ± 0.08 m. Mainland dominant species, Acer rubrum, Pinus taeda, and Liquidambar styraciflua, remained dominant over the study period, with a 14% reduction in the total number of individuals recorded. Basal area increased by 11%. Conversely, on Parramore Island, 33% of the former forested plots converted to grassland and 33% were lost to erosion and occur as ghost forest on the shore or were lost to the ocean. Of the remaining forested plots surveyed in 2018, dominance switched from Persea palustris and Juniperus virginiana to the shrub Morella cerifera. Only 46% of trees/shrubs remained and basal area was reduced by 84%. Shrub basal area accounted for 66% of the total recorded in 2018. There are alternative paths to maritime forest trajectory which differ for barrier island and mainland. Geographic position relative to disturbance and elevation likely explain the changes in forest community composition over the timeframes studied. Protected mainland forest at Savage Neck occurs at higher mean elevation and indicates natural succession to larger and fewer individuals, with little change in mixed hardwood-pine dominance. The fronting barrier island maritime forest on Parramore Island has undergone rapid change in 21 years, with complete loss of forested communities to ocean or conversion to mesic grassland. Of the forests remaining, dominant evergreen trees are now being replaced with the expanding evergreen shrub, Morella cerifera. Loss of biomass and basal area has been documented in other low elevation coastal forests. Our results indicate that an intermediate shrub state may precede complete loss of woody communities in some coastal communities, providing an alternative mechanism of resilience.

Smart Luggage System

From an age, voyaging has been the piece of human existence and gear assumes a significant part while venturing out starting with one spot then onto the next. With time the methods for transportation expanded venturing to every part of the brief distance and over oceans got simpler however odds of losing gear expanded also. To decrease the misusing of gear. The specialists concocted the possibility of establishment of shrewd global positioning framework in the gear to follow the baggage progressively with the assistance of a microcontroller framework, which is wearable and helpful. Utilizing remote correspondence strategies the proposed framework has been planned. Consequently, the Gear Following is created to stay away from misfortune or misusing of a travelers baggage which makes pressure for the travelers. Furthermore, to expand the security of the venture we presented the possibility of RFID locking framework which expanded the degree of safety at one level. The proposed framework comprises of a Microcontroller Arduino which is associated with the gear through a GPS that gives the area subtleties to the GSM. This recovered information of baggage area is handled to the cloud data set that helps in discovering the area of the gear progressively, presently the baggage proprietor is furnished with client ID and secret phrase for attaching the baggage. On the off chance that the client has to know the situation with their gear, the individual can sign into his/her ID and recognize the situation of the lost baggage. Notwithstanding it a RFID Framework is utilized to configuration locking framework which builds the gear security. This stuff global positioning framework will illuminate where your sack is and where it has been. The framework utilizes geographic position and time data from the Worldwide Situating Satellites.

《徐霞客遊記》的西南書寫：以異族敘述為探論核心

<p>中國西南地域以獨特之地理位置輻輳著民族、貿易、帝國權力與異域知識等人文面向，而明代文人關於西南地域之紀遊書寫，則因應文人的書寫位置、文類特質展現其文學意蘊與文化視野。其中《徐霞客遊記》已成經典，有「徐學」之稱，值得深入追索。除了華夷對舉的批判性思考，以及文人心態的反身性理解之外，如何在史料鋪陳中發現新意，闡述文學本質及人與空間的互動，是值得關注的部分。本文以徐弘祖進入西南地域的行動探索與紀實表述為核心，聚焦於異族的文化接觸，呈現紀遊文學的情感內蘊及感覺結構，並藉此反思徐弘祖的書寫位置，審視其西南知識之構成。</p> <p>&nbsp;</p><p>Occupying a unique geographic position, Southwest China has witnessed frequent ethnic encounters, trade exchanges, empire power expansions, and foreign knowledge transmission. It is in this region that Ming intellectuals composed travelogues offering remarkable literary/cultural insights, and Xu Xiake youji is one such classic. In fact, such is the influence of this travelogue that a scholarly field named Xuxue has been developed for its further investigation. In addition to Han/non-Han dualistic critical considering and intellectual self-reflection, it is also significant to delve into the subtle connotations in this travelogue and how the writer depicted the literary essence along with the human-space interactions. This paper will center on Xu Hongzu&rsquo;s explorations and narrations in the southwest, and shed light on Xu&rsquo;s cultural contacts with non-Han people. By doing so, we can reveal the travelogue&rsquo;s emotional dimensions and its structure of feelings, thus reconsidering Xu&rsquo;s writing position and the make-up of his discourse of southwestern knowledge, experience, and imagination.</p> <p>&nbsp;</p>

Integrating continental mainland and islands in temperate East Asia: liverworts and hornworts of the Korean Peninsula

The liverwort and hornwort flora of the Korean Peninsula possesses some unique traits arising from the geographic position of the Peninsula, where the mainland flora meets insular flora. This flora is still not exhaustively studied, due not only to political reasons, but also because much less attention has been paid than to adjacent lands by hepaticologists. A checklist presented is based on a study of ca. 15,500 specimens collected by the authors and a review of relevant literature. This study provides the checklist of liverworts and hornworts known from Korea and the geographical distribution of each species within the peninsula. The liverworts and hornworts in Korean flora include 346 taxa (326 species, 16 subspecies and four varieties) in 112 genera and 50 families. Since 2007, 75 taxa of liverworts and four taxa of hornworts are reported as new to the Korean Peninsula, with a number of the new records arising following application of new taxonomic concepts that have become apparent over the last few decades. While compiling the checklist, 42 species, previously reported to Korea, are excluded from the Korean liverwort flora.

ESTIMATION OF DAILY ENERGY GAIN OF SOLAR TRACKING SURFACES BASED ON GEOGRAPHIC POSITION

The performance of solar systems depends on the effective incident solar energy on the capture surface. This factor is dependent on the geographic position, the orientation of the surface, atmospheric conditions, and other geo-climatic factors. Solar trackers, typically uni- and biaxial, are used to optimize the capture of solar radiation via movement of the plane of incidence of these devices. A reliable estimation of the energy gain of these trackers with respect to a fixed surface facilitates more accurate analyses of the feasibility, operation, and maintenance of solar ventures. In this work, a method for estimating the relative energy gain of uni- and biaxial solar trackers is developed. This approach applies to locations between the Arctic Circle and the Antarctic Circle, using geographic coordinates and the altitude of the location of interest, providing daily results throughout the year. Unlike empirical results or case studies, the proposed method applies to any location and has a low error. It can be implemented using iterative algorithms with a low computational cost and can be easily utilized by researchers and technicians in the field.