A Secure Image Steganography Using Shark Smell Optimization and Edge Detection Technique by Omar Y. Abdulhammed, Pshtiwan J. Karim, Dashne R. Arif, Twana S. Ali, Avin O. Abdalrahman, Arkan A. Saffer

“…Firstly, to promote the hiding ability and to realize altitude standard of secrecy the mystery message is separated into four parts and the cover image is masked and also divided into four sections, then the edge detection algorithm and shark smell optimization is performed on each section respectively. …”
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Macroinvertebrate communities of karst springs in the Julian Alps in relation to environmental factors by Nataša Mori

“…The results of canonical correspondence analysis (CCA) showed that spring altitude and periphyton coverage were the only environmental parameters significantly influencing the macroinvertebrate community composition. …”
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FDFT1 inhibits macrophage M1 polarization and promotes colorectal cancer progression by GAO Yuan, HUANG Yulan, ZHAO Kun

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Coenagrion hastulatum (Charpentier, 1825), new for the dragonfly fauna of Bosnia and Herzegovina (Odonata: Coenagrionidae) by Matjaž Bedjanič

“… At the high-altitude Donje Bare and Gornje Bare Lakes in the surroundings of Tjentište village, Zelengora Mts., Sutjeska National Park, SE Bosnia and Herzegovina, Coenagrion hastulatum was recorded on 26 June 2011. …”
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Ecological Study of the Vegetation in the Loka Abaya National Park, Ethiopia by Assegid Assefa, Tamrat Bekele, Sebsebe Demissew, Tesfaye Abebe

“…Vegetation data and some environmental variables including physical and chemical properties of the soil, altitude, slope, and ecological disturbance were collected and subjected to the agglomerative hierarchical classification and ordination with the canonical correspondence analysis. …”
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On the reflection of Alfvén waves in an ideal magnetoatmosphere by Hadi Yahya Alkahby, M. A. Mahrous

“…Below the critical layer, the solution of the problem can be written as a linear combination of an upward and a downward propagating wave and above it the solution decays exponentially with the altitude. The location of the critical layer and the magnitude of the reflection coefficient are determined and the conclusions are discussed in cormeetion with the heating mechanism of the solar atmosphere…”
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A novel framework unveiling the importance of heterogeneous selection and drift on the community structure of symbiotic microbial indicator taxa across altitudinal gradients in amp... by Jin Zhou, Zhidong Liu, Sishuo Wang, Jing Li, Lin Zhang, Ziyan Liao

“…Amphibian symbiotic microbes along an altitudinal gradient from Sichuan Province, China, were employed to examine the proposed statistical framework. In different altitude groups, we found that heterogeneous selection governed the community structure of symbiotic microbes across DSUs, while stochastic processes tended to increase with altitude. …”
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Morphology and Immunoexpression of Selenoproteins in Term Placenta of Alpaca (<i>Vicugna pacos</i>) from the Peruvian Andes by Miluska Beatriz Navarrete Zamora, Francisco Acuña, Mônica Duarte da Silva, Thamires Santos-Silva, Matheus Henrique Herminio Garcia, Rodrigo da Silva Nunes Barreto, Alberto Sato Sato, Claudio Gustavo Barbeito, Maria Angelica Miglino

“…We hypothesize that the placenta of alpacas, adapted to high altitudes, has characteristics with other species also adapted to altitude. …”
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Trimetazidine: Activating AMPK Signal to Ameliorate Coronary Microcirculation Dysfunction after Myocardial Infarction by Xiaolong Qu, Pan Yang, Li Jiao, Yuehui Yin

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Le Leucaena leucocephala et les Bas de l’Ouest à l’île de La Réunion by Morgane Robert

“…This article, based on doctoral research, proposes to lay the groundwork for a new interpretation of the processes at work in the landscapes of the savannahs and ravines on the leeward side of Reunion Island, under 400 metres in altitude. A plant-based approach intended to demonstrate that the reconstruction of a landscape’s history may be partly correlated with the trajectory of a particular plant species in that landscape. …”
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Bassæ by Ida Soulard

“…The temple of Apollo Epikourios – the helper – at Bassae, built in the fifth century BC, is located at an altitude of about 1130 metres on Mount Kotilio, in Arcadia, Peloponnese, Greece. …”
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Unmanned aerial vehicle localization using distributed sensors by Seung Yeob Nam, Gyanendra Prasad Joshi

“…The first scheme localizes the projection of the target vehicle on the horizontal plane and estimates the altitude later. The second scheme estimates the location of the target vehicle directly in three-dimensional space. …”
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Fuzzy-Approximation-Based Novel Back-Stepping Control of Flexible Air-Breathing Hypersonic Vehicles with Nonaffine Models by Xingge Li, Gang Li

“…Firstly, the nonaffine models are decomposed into an altitude subsystem and a velocity subsystem, and the nonaffine dynamics of the subsystems are processed by using low-pass filters. …”
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Control Allocation Design of Reaction Control System for Reusable Launch Vehicle by Rongjun Mu, Xin Zhang

“…RCS, which is much different from the atmospheric steer’s control, requires a well designed control allocation system to fit the attitude control in high altitude. In this paper, an indexed control method was proposed for RCS preallocation, a 0-1 integer programming algorithm was designed for RCS allocation controller, and then this RCS scheme’s effect was analyzed. …”
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Sliding Mode-Based Control of a UAV Quadrotor for Suppressing the Cable-Suspended Payload Vibration by Tom Kusznir, Jaroslaw Smoczek

“…Sliding mode control (SMC) is used for horizontal positioning and payload vibration damping, while a feedback linearizing controller is used for both altitude and attitude control. The SMC surface parameters are determined by placing the eigenvalues of the linearized system at a desired position. …”
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Multiconstrained Ascent Trajectory Optimization Using an Improved Particle Swarm Optimization Method by Mu Lin, Zhao-Huanyu Zhang, Hongyu Zhou, Yongtao Shui

“…Then, in order to reduce the computational burden on the optimal solution, the restrictions on the angular momentum and the eccentricity of the target orbit are converted into constraints on the terminal altitude, velocity, and flight path angle. In this way, the requirement on accurate orbit insertion can be easily realized by solving a three-parameter optimization problem. …”
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A new species of tarantula of the genus Euathlus (Araneae: Theraphosidae) from Chile: distribution and possible threats to its conservation by Andrés Taucare-Ríos, Sergio Ocares-Plaza, Fernando Pérez-Miles

“…Known and potential distribution are provided. Precipitations and altitude are the most important variables for its distribution. …”
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Enquête sur les jardins et savoirs jardiniers de La Réunion : premiers résultats d’une recherche sur la biodiversité « cultivée » by Sébastien Clément

“…It is based on interviews with gardeners and on an experiment consisting of the collective creation of a garden on an uncultivated plot in the west of the island at an altitude of 350 meters, and a quantitative survey of changes in the species of flora and fauna. …”
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Solar Tracking Error Analysis of Fresnel Reflector by Jiantao Zheng, Junjie Yan, Jie Pei, Guanjie Liu

“…The tracking error caused by other deviations such as rotating eccentric, latitude, and solar altitude was positive at morning, negative at afternoon, and zero at a certain moment of noon.…”
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Experiences with the GPS in Unstabilized CubeSat by Pavel Kovar

“…Lucky-7 is a private 1U technological CubeSat with power budget 1 W that operates on the quasisynchronous polar orbit at altitude 520 km. One of its scientific missions is to test the operation of GPS. …”
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