scholarly journals Search and Rescue in the Pacific West States

2021 ◽  
Author(s):  
Stephen Ettinger ◽  
Andrea Long ◽  
Arun Ganti ◽  
Roger B. Mortimer ◽  
William Chiang ◽  
...  
Keyword(s):  
Search And Rescue ◽  
The Pacific

scholarly journals *Locating an iBeacon with GPS, using amateur radio VHF and the AMSAT satellite PSAT, NO-84, cubesat, using AX.25.*

2019 ◽  
Author(s):  
Anil Kumar Bheemaiah
Keyword(s):  
Average Distance ◽  
The United States ◽  
Close Packing ◽  
Search And Rescue ◽  
Feature Representation ◽  
Long Distance ◽  
Amateur Radio ◽  
Gps Satellites ◽  
The Pacific ◽  
Wilderness Areas

Abstract:Resupply by airdropping or drone-shipping is a new resupply strategy in backpacking. In preparation for reconnaissance in long distance backpacking and SAR activities in remote areas, with little or no development, we consider the use of amateur radio with GPS beacons for resupply trackingand geo-tagging. While 6G communications using GPS satellites are available for mountaineering beacons, we use a dual strategy with an additional amateur radio based AX.25 packet radio using the PSAT based cubesat for publishing location information.Additionally, two cargo iTag locating satellites, bot cubesats are also used for iTag location and the automatic publication of tag locations on geocaching.com. The satellites are AENEAS and PTecSAT.A logistics exercise is introduced, proposed to be conducted at Uncas Scientific Area, near Big Lake, MN, with an operations logistik for the spanning of drop locations and radio fox hunt, using a reconnaissance track, mobile cache device.Keywords: iTag, iBeacon, AMSAT, cubesat, AENEAS, PTecSAT, 6G, AX.25, resupply, mountaineering and backpacking, SAR.What: The AMSAT AENEAS(“Technical Details for Satellite AENEAS” n.d.), PTecSAT(“IARU Sat Coordinator” n.d.) satellite is used for resupply iBeacon tracking, with a payload of water sachets and soylent coffee packs, for mountaineering resupply logistics. Radio Fox Hunting combined with alpining is defined as a newer, ultralight backpacking technique.How:iBeacons, defining 100msec bursts at 2.425GHz are designed with the minimum wattage needed for detection on the field by the AENEAS satellite. 100 such packages containing 1-liter pouches of potable water and three meals of soylent of 87 grams each. This proof of concept study is to be conducted at Uncas Dunes Scientific and Natural Area (SNA), with an area of 658.3 acres , we have a density of airdropping of 6.58 acres per package, leading to an average distance of 26628.32 square meters, by pi/4 d^2, d is 184 meters in circle close packing model.We determine an optimal trajectory for the radio fox hunt over a published geotag distribution of 100 resupply caches.Why:Resupply strategies, form an important role in long distance mountaineering and backpacking missions, for wilderness areas with little or no little development, for example the pacific crest trail, in the united states, a strong resupply strategy along with an armada of reconnaissance track mobile caches are needed for effective mountaineering and/or search and rescue operations, with a resilience plan for extreme weather operations.The use of 6G like simulated communication is possible by using better encryption and packet compression over a slower AX.25 network, with the use of A.I based technologies like image cartoonization and feature representation and speech to text conversion for lower bandwidth requirements.So What:The use of reconnaissance tracks, along with airdropped resupply, will improve the efficiency and quality of mountaineering and provide vital air support for search and rescue operations. Resupply beacons also provide supplies for hikers or backpackers lost in the wilderness and also provide emergency communication hotspots as the beacons are still active to transreceiver emergency messages.

The Philological Association of The Pacific Coast

PMLA ◽  
1935 ◽  
Vol 50 (4) ◽  
pp. 1373-1374
Keyword(s):  
Annual Meeting ◽  
Pacific Coast ◽  
Stanford University ◽  
The Pacific

The thirty-seventh annual meeting of the Philological Association of the Pacific Coast was held at Stanford University, California, on November 29 and 30, 1935.

A scanning electron microscopic study of the veliger larvae of the scallop argopecten purpuratus

1988 ◽  
Vol 46 ◽  
pp. 284-285
Author(s):  
G.C. Bellolio ◽  
K.S. Lohrmann ◽  
E.M. Dupré
Keyword(s):  
Morphological Description ◽  
Electron Microscopic ◽  
Larval Stages ◽  
Scanning Electron Microscopic Study ◽  
The Pacific ◽  
Argopecten Purpuratus ◽  
Veliger Larvae ◽  
20 Nm ◽  
Ethanol Series ◽  
Scanning Electron

Argopecten purpuratus is a scallop distributed in the Pacific coast of Chile and Peru. Although this species is mass cultured in both countries there is no morphological description available of the development of this bivalve except for few characterizations of some larval stages described for culture purposes. In this work veliger larvae (app. 140 pm length) were examined by the scanning electron microscope (SEM) in order to study some aspects of the organogenesis of this species.Veliger larvae were obtained from hatchery cultures, relaxed with a solution of MgCl2 and killed by slow addition of 21 glutaraldehyde (GA) in seawater (SW). They were fixed in 2% GA in calcium free artificial SW (pH 8.3), rinsed 3 times in calcium free SW, and dehydrated in a graded ethanol series. The larvae were critical point dried and mounted on double scotch tape (DST). To permit internal view, some valves were removed by slightly pressing and lifting the tip of a cactus spine wrapped with DST, The samples were coated with 20 nm gold and examined with a JEOL JSM T-300 operated at 15 KV.

Decolonisation and the Pacific

2016 ◽  
Author(s):  
Tracey Banivanua Mar
Keyword(s):  
The Pacific

Letter Across the Pacific

Crisis ◽  
2000 ◽  
Vol 21 (3) ◽  
pp. 107-109
Author(s):  
Chris Cantor
Keyword(s):  
The Pacific

Letter Across the Pacific

Crisis ◽  
2000 ◽  
Vol 21 (4) ◽  
pp. 154-155
Author(s):  
John T. Maltberger
Keyword(s):  
The Pacific

Letter Across the Pacific

Crisis ◽  
1998 ◽  
Vol 19 (3) ◽  
pp. 102-104, 108
Author(s):  
Chris Cantor
Keyword(s):  
The Pacific

Letter Across the Pacific

Crisis ◽  
1998 ◽  
Vol 19 (2) ◽  
pp. 52-53, 55
Author(s):  
Lanny Berman
Keyword(s):  
The Pacific

Letter Across the Pacific

Crisis ◽  
1997 ◽  
Vol 18 (2) ◽  
pp. 59-61
Author(s):  
Chris Cantor
Keyword(s):  
The Pacific
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