Users’ Perceptions of Smartphone Weather Applications’ Usability

2019 ◽  
Vol 63 (1) ◽  
pp. 2216-2220
Author(s):  
Abdulrahman Khamaj ◽  
Ziho Kang ◽  
Elizabeth Argyle
Keyword(s):  
High Risk ◽  
Thematic Analysis ◽  
User Satisfaction ◽  
Weather Conditions ◽  
Severe Weather ◽  
User Centered Design ◽  
User Perceptions ◽  
Design Specifications ◽  
Smartphone Technology ◽  
Time Critical

The advancements of smartphone technology have led to a significant growth of smartphone weather applications (i.e. apps) on the market. Due to the high risk and time-critical situations associated with severe weather conditions (e.g. floods, tornados, and thunderstorms), designing weather apps to consider users’ needs is critical for improving product usability. This paper employs a user-centered design (UCD) approach to investigate a sample of end users’ perceptions regarding the usability of smartphone weather apps. Focus group responses analyzed with a thematic analysis approach revealed four main themes representing key usability principles and design specifications. The four themes were (1) user cognitive load, (2) effectiveness, (3) efficiency of use, and (4) user perceptions. Several recommendations were suggested based on the findings which might assist developers in designing highly interactive and usable apps leading to increased user satisfaction.

Helping Analysts Deal with Data Overload: Profiling Profilers

2005 ◽  
Vol 49 (10) ◽  
pp. 908-912 ◽  
Author(s):  
Cynthia Dominguez ◽  
Donald Cox ◽  
William G. Long ◽  
Brian Moon ◽  
Gary Klein
Keyword(s):  
Information Retrieval ◽  
High Risk ◽  
National Security ◽  
Research Effort ◽  
Information Collection ◽  
Military Leaders ◽  
Cognitive Work ◽  
Data Overload ◽  
Current Lines ◽  
Time Critical

Intelligence analysts provide an incredibly important service toward maintaining our national security. They are chartered with providing the knowledge basis for decisions our national and military leaders make. Analysts must be depended upon to influence high-risk, time-critical, sometimes life-or-death decisions; thus, supporting their requirements is a vital goal for research and development efforts. In this paper, we focus on the cognitive aspects of analysts' information collection and filtering tasks, particularly of all-source analysts who continuously monitor message traffic. These analysts create synthesized reports for customers. We will discuss the issue of data overload and its effects, along with current lines of research on information retrieval. We end with a summary of our research effort examining filtering/profiling, to include approach and initial findings, towards our eventual goal of developing design seeds that can be incorporated into software tools to better support analysts' cognitive work.

scholarly journals Terminal Airspace Capacity Evaluation Model under Weather Condition from Perspective of a Controller

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Lu Liu
Keyword(s):  
Network Flow ◽  
Topological Structure ◽  
Evaluation Model ◽  
Weather Condition ◽  
Weather Conditions ◽  
Severe Weather ◽  
Safe Operation ◽  
Weather Factor ◽  
Route Network ◽  
Capacity Evaluation

A route network lays in the terminal airspace. The route network can be divided into multiple subnetworks according to sectors. When severe weather conditions occur, a controller takes measures to obtain safe operation of flights, such as navigation guidance or changing the availability of routes. In such circumstances, the route structure of a subnetwork is changed, and the controller’s attention paid to each route is also changed as well as the unit workload on it. As the subnetwork is handled by one controller, capacities of routes in it are associated. We find the way to determine the “related capacity” of a route in the conditions that whether topological structure of the terminal route network is changed or not. The capacity of the terminal route network calculated by network flow theory represents the capacity of terminal airspace. According to the analysis results, the weather factor reduces capacity of terminal airspace directly by reducing the capacities of routes blocked. Indirectly, it diverts controller’s attention to change capacities of other routes in the subnetwork.

scholarly journals Continuously Healthy, Continuously Used? –A Thematic Analysis of User Perceptions on Consumer Health Wearables

2019 ◽  
pp. 108-132 ◽  
Author(s):  
Christian Matt ◽  
◽  
Moritz Becker ◽  
Andreas Kolbeck ◽  
Thomas Hess ◽  
...  
Keyword(s):  
Thematic Analysis ◽  
Consumer Health ◽  
User Perceptions

scholarly journals The influence of acetamiprid and deltamethrin on the mortality and behaviour of honeybees (Apis mellifera carnica Pollman) in oilseed rape cultivations

Apidologie ◽  
2020 ◽  
Vol 51 (6) ◽  
pp. 1143-1154
Author(s):  
Daria Dworzańska ◽  
Graham Moores ◽  
Joanna Zamojska ◽  
Przemysław Strażyński ◽  
Paweł Węgorek
Keyword(s):  
Apis Mellifera ◽  
High Risk ◽  
Acute Toxicity ◽  
Oilseed Rape ◽  
Active Ingredient ◽  
Good Condition ◽  
Weather Conditions ◽  
Apis Mellifera Carnica ◽  
Relative Safety ◽  
Bee Colonies

AbstractThe aim of the research was to determine the influence of acetamiprid and deltamethrin on the mortality and behaviour of honeybees of the same variety, coming from the same source and estimated to be in good condition by a professional beekeeper, but in different years and under different weather conditions. Results of research conducted in field isolators in oilseed rape fields in the years 2012–2018 showed no acetamiprid influence either on the mortality or on the behaviour of honeybees. Deltamethrin activity differed from a lack of influence through causing mortality and a weaker condition of honeybee colonies to the destruction of the colony. This demonstrates the relative safety of acetamiprid to honeybees and the high risk of deltamethrin use. The differences in the bee colonies’ reaction to deltamethrin are probably caused by the high acute toxicity of this active ingredient, genetically dependent, variable metabolic capabilities of particular bee colonies, or coexistence of a variety of different stressors—mainly pathogens.

scholarly journals Modelling the trajectory of the corpses of mountaineers who disappeared in 1926 on Aletschgletscher, Switzerland

2014 ◽  
Vol 60 (220) ◽  
pp. 255-261 ◽  
Author(s):  
Guillaume Jouvet ◽  
Martin Funk
Keyword(s):  
Velocity Field ◽  
Weather Conditions ◽  
Space Time ◽  
Severe Weather ◽  
Time Dependent ◽  
Glacier Area ◽  
Glacier Surface ◽  
Space And Time ◽  
End Point

AbstractIn this paper we reconstruct the space–time trajectory beneath the surface of Aletschgletscher, Switzerland, of the corpses of three mountaineers that disappeared in March 1926 and reappeared at the glacier surface in June 2012. Our method integrates the time-dependent velocity field of an existing full-Stokes glacier model, starting at the point where the corpses were found at the glacier surface. Our main result is that we were able to localize the immersion location where the brothers presumably died. As a second result, the upstream end point of the computed trajectory emerges very close to the glacier surface in 1926, giving a new and global validation of the glacier model in space and time. Testing the sensitivity of the immersion location obtained with respect to the model and other uncertainties indicates an area of 0.6% of the entire glacier area where the accident could have occurred. Our result suggests that death was not caused by an avalanche or a fall into a crevasse; instead, it is likely that the mountaineers became disoriented in prolonged severe weather conditions and froze to death.

Development of subsea tie-backs in challenging environments

2014 ◽  
Vol 54 (2) ◽  
pp. 540
Author(s):  
Gregor Couper ◽  
Sina Roshan-Zamir ◽  
John Rickman ◽  
Chris Lee
Keyword(s):  
Cost Effective ◽  
Weather Conditions ◽  
Severe Weather ◽  
Short Length ◽  
Effective Solution ◽  
Established Method ◽  
Constraint Factors ◽  
Successful Execution ◽  
Stage Process

Tie-backs to existing facilities are a long established method of expanding developments, as they often offer a cost-effective solution. For short length tie-backs located in regions that are remote and/or subject to severe weather conditions, however, the feasibility of installation can become a significant constraint. Factors such as high mobilisation cost of pipelay vessels and conditions that make pipeline towing impractical limit the potential design solutions. Defining these constraints early in the project is critical to successful execution. This extended abstract explores the challenges faced when developing such a tie-back by considering a case study of Origin Energy’s Geographe development, located in the Otway Basin. The location and harsh weather conditions constrained the viable installation options, which shaped the design. A flexible flowline was selected because it could be installed from a wider range of vessels and in a less limiting weather window. Subsea coolers are located at the wells for control of top of line (TOL) corrosion and to protect the flexible flowline from exposure to overly high temperatures. The cooler design brings its own challenges, requiring a two-stage process. First, modelling of the production fluid is used to determine the cooling requirements; then, CFD is used to design the cooler piping and structure to achieve this. A design with multiple, smaller structures was used to maximise the number of capable installation vessels. This extended abstract discusses the constraints that can occur, how the design must accommodate them, and the implications on execution of the project.

Sign in / Sign up

Export Citation Format

Share Document