Le bornage de l’alpage de la Grassaz à Peisey (Tarentaise, xv e siècle) by Constance Toppin

“…The border and all the elements delimiting the shared mountain pasture of la Grassaz, used by the members of both communities must be redrawn.Landry and Peisey are both faced, like many medieval and modern communities, with the difficulties inherent to the exploitation of communal resources and spaces, especially alpine pastures. Those high-altitude pastures (pascua) shaped by humans across the millennia for the rearing of livestock, complete the food-producing polyculture of these mountain farmers.Using the example of two rural communities, this paper highlights techniques of physical demarcation, with the tracing of a border between a communal space, la Grassaz, collectively exploited by Landry and Peisey, and the territory specific to Peisey…”
Get full text

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. …”
Get full text

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. …”
Get full text

(Dé)Connecter. Matérialités énergétiques dans les sites isolés de montagne by Marie Forget, Kilian Ayroles

“…It questions the modalities of (de)connection as well as their motivations through a multiscalar approach, from the buildings, to high altitude hamlets, and to the integration of valleys. …”
Get full text

(Dis)Connected. Energy Materialities of Isolated Sites in Mountain Areas by Marie Forget, Kilian Ayroles

“…It questions the modalities of (de)connection as well as their motivations through a multiscalar approach, from the buildings, to high altitude hamlets, and to the integration of valleys. …”
Get full text

Potential and methods of wireless communications for Internet of things based on UAV by Qingheng SONG, Fuchun ZHENG

“…In the absence of terrestrial infrastructure for Internet of things (IoT),an effective low-cost wireless connection can be provided by an unmanned aerial vehicle (UAV) based wireless communication platform.Compared with the terrestrial IoT communication platform,the low-altitude UAV wireless communication system enjoys the advantage of rapid deployment,low cost,on-demand deployment,flexible configuration and better communication channel quality due to short-range line-of-sight links.On the other hand,several new challenges must be overcome due to the high mobility and energy consumption limitations of UAV.An overview of UAV enabled IoT wireless communication was provided,including the air-to-ground channel model,the power consumption model,as well as the applications in UAV based data dissemination/collection and relay,with particular reference to the new opportunities and solutions in these application areas.…”
Get full text

Representations of the Avalanche Risk Among Winter Outdoor Activities Practitioners in the Vosges Mountains by Florie Giacona, Frédérick Guyon

“…Whereas numerous studies questioned the risk concept in France, few so far have focused on medium-high altitude avalanches, even though those occur on a regular basis. …”
Get full text

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. …”
Get full text

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. …”
Get full text

Doppler Positioning Performance of LEO Mega Constellation by Yulu ZHANG, Zhen LI, Chuang SHI, Guifei JING

“…This paper proposed a Doppler-only point-solution algorithm and analyzed the Doppler positioning performance based on the Starlink constellation.The Doppler positioning accuracy was about 3～6 m.To achieve the meter-level positioning accuracy, the satellite position and velocity errors should be within several meters and several centimeters per second, respectively.The ionospheric delay rates of C-band signal would cause about 2 m error in Doppler positioning.The positioning error would increase by dozens of meters if there were no corrections for the tropospheric errors.To ensure convergence in the LEO-based Doppler positioning, the initial receiver position error should be less than 300 km when the satellites orbit at an altitude of 550 km.…”
Get full text

Environmental risks and impacts of mountain reservoirs for artificial snow production in a context of climate change by André Evette, Laurent Peyras, Hugues François, Stéphanie Gaucherand

“…Their siting in high-altitude zones makes them highly specific reservoirs subjected to and inducing risks and impacts on their human and ecological environment. …”
Get full text

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. …”
Get full text

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. …”
Get full text

Faire bifurquer le tourisme hivernal ? Controverses et mobilisations socio-environnementales autour de la transition écologique dans une station alpine (La Clusaz, France) by Mikaël Chambru, Marion Picard

“…Based on the case of the project to create a high-altitude reservoir at La Clusaz ski resort in France, this article analyses the opposing appropriations of the so-called ecological transition in the mountains. …”
Get full text

Optimizing Reversible Phase‐Transformation of FeS2 Anode via Atomic‐Interface Engineering Toward Fast‐Charging Sodium Storage: Theoretical Predication and Experimental Validation... by Wenxi Zhao, Yanbing Zhou, Hao Zhou, Xinqin Wang, Shengjun Sun, Xun He, Yongsong Luo, Binwu Ying, Yongchao Yao, Xiaoqing Ma, Xuping Sun

Get full text

A novel frameshift mutation in the BCOR gene is associated with oculo-facio-cardio-dental syndrome: a case report by Qiu-Mei Gu, Xue-Fei He, Wen-Zhe Xiao, Chao Qu

Get full text

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. …”
Get full text

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. …”
Get full text

Représentations et pratiques autour de la ressource en eau des producteurs maraîchers des Andes vénézuéliennes by David Leroy, Alexandra Angéliaume-Descamps, Jean Marc Antoine, Frédérique Blot, Éric Maire, Anne Peltier

“…Faced with this phenomena, new practices such as irrigation by micro-irrigation or the preservation of water sources in altitude begin to emerge.…”
Get full text

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. …”
Get full text