Using socio-spatial concepts of situatedness to explain work processes in the context of post-growth economies

Aim. The use of modern information technologies makes it possible to achieve a qualitatively new level of control in supply chains. In these conditions, ensuring information security is the most important task. The article shows the possibilities of applying the spatial concepts of the actor-network theory in the interests of forming a relevant intelligent information security management system for supply chains. Materials and methods. The article discusses a new approach based on the provisions of the actor-network theory, which makes it possible to form the structure of an intelligent information security control system for supply chains, consisting of three main functional blocks: technical, psychological and administrative. The incoming information security threats and the relevant system responses generated through the interaction of the system blocks were considered as enacting the three Law’s spaces: the space of regions, the space of networks and the space of fl uids. Results. It is shown that the stability of this system in the space of networks is a necessary condition for its successful functioning in the space of regions, and its resilience in the space of fl uids gained through the dynamic knowledge formation helps overcome the adverse effects of the fl uidity. The problems of the intentional / unintentional nature of information security threats, as well as the reactivity / proactivity of the corresponding responses of the intelligent information security management system for supply chains are investigated. Conclusions. The proposed approach showed the possibility of using such an interdisciplinary tool in the fi eld of information security as the concepts of the actor-network theory. The intelligent information security control system built on its basis ensures that almost all the features of solving information security problems in supply chains are taken into account.

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Pemanfaatan Android Dalam Perancangan Aplikasi Kumpulan Doa

Jurnal Sains dan Informatika ◽

10.22216/jsi.v4i1.3409 ◽

2018 ◽

Vol 4 (1) ◽

pp. 54-65

Author(s):

Efmi Maiyana

Keyword(s):

Operating System ◽

Open Source ◽

Daily Life ◽

Secondary Data ◽

Data Type ◽

Program Model ◽

Work Processes ◽

Design Work ◽

Analysis Design ◽

Android Operating System

Android is an Open Source operating system that gives developers the freedom to develop applications, with the advantages of android operating system, will help many android-based smartphone users to be able to enjoy various applications, one application is the Android-Based Preview Application, the main purpose of this Application is assisting Muslims in reciting the necessary prayers in daily life effectively and efficiently. The type of data used is a secondary data type in which data is obtained from reference books and literature related to this case. There are several stages in making this application, namely analysis, design, work processes, and evaluation of the program model that has been produced. This android-based prayer collection app, can be used on android-based smartphones in the least 4.1 version in this application testing can run smoothly

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The Carnot Cycle, Reversibility and Entropy

Entropy ◽

10.3390/e23070810 ◽

2021 ◽

Vol 23 (7) ◽

pp. 810

Author(s):

David Sands

Keyword(s):

Irreversible Process ◽

Entropy Change ◽

External Pressure ◽

Step Change ◽

Equilibrium States ◽

Rate Equations ◽

Carnot Cycle ◽

Work Processes ◽

Reversible Process ◽

External Conditions

The Carnot cycle and the attendant notions of reversibility and entropy are examined. It is shown how the modern view of these concepts still corresponds to the ideas Clausius laid down in the nineteenth century. As such, they reflect the outmoded idea, current at the time, that heat is motion. It is shown how this view of heat led Clausius to develop the entropy of a body based on the work that could be performed in a reversible process rather than the work that is actually performed in an irreversible process. In consequence, Clausius built into entropy a conflict with energy conservation, which is concerned with actual changes in energy. In this paper, reversibility and irreversibility are investigated by means of a macroscopic formulation of internal mechanisms of damping based on rate equations for the distribution of energy within a gas. It is shown that work processes involving a step change in external pressure, however small, are intrinsically irreversible. However, under idealised conditions of zero damping the gas inside a piston expands and traces out a trajectory through the space of equilibrium states. Therefore, the entropy change due to heat flow from the reservoir matches the entropy change of the equilibrium states. This trajectory can be traced out in reverse as the piston reverses direction, but if the external conditions are adjusted appropriately, the gas can be made to trace out a Carnot cycle in P-V space. The cycle is dynamic as opposed to quasi-static as the piston has kinetic energy equal in difference to the work performed internally and externally.

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A SYSTEMATIC COLLECTION OF NATURAL INTERACTIONS FOR IMMERSIVE MODELING FROM BUILDING BLOCKS

Proceedings of the Design Society ◽

10.1017/pds.2021.29 ◽

2021 ◽

Vol 1 ◽

pp. 283-292

Author(s):

Jakob Harlan ◽

Benjamin Schleich ◽

Sandro Wartzack

Keyword(s):

User Interfaces ◽

Building Blocks ◽

Hand Tracking ◽

Spatial Concepts ◽

Natural User Interfaces ◽

Modeling Systems ◽

Block Based ◽

Natural Interactions ◽

Tracking Technology ◽

Systematic Collection

AbstractThe increased availability of affordable virtual reality hardware in the last years boosted research and development of such systems for many fields of application. While extended reality systems are well established for visualization of product data, immersive authoring tools that can create and modify that data are yet to see widespread productive use. Making use of building blocks, we see the possibility that such tools allow quick expression of spatial concepts, even for non-expert users. Optical hand-tracking technology allows the implementation of this immersive modeling using natural user interfaces. Here the users manipulated the virtual objects with their bare hands. In this work, we present a systematic collection of natural interactions suited for immersive building-block-based modeling systems. The interactions are conceptually described and categorized by the task they fulfil.

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Geo-tagging non-spatial concepts

Proceedings of the 4th ACM SIGSPATIAL International Workshop on Mobile Geographic Information Systems - MobiGIS '15 ◽

10.1145/2834126.2834138 ◽

2015 ◽

Author(s):

Amgad Madkour ◽

Walid G. Aref ◽

Mohamed Mokbel ◽

Saleh Basalamah

Keyword(s):

Spatial Concepts

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Development and Research of Crosshead-Free Piston Hybrid Power Machine

Machines ◽

10.3390/machines9020032 ◽

2021 ◽

Vol 9 (2) ◽

pp. 32

Author(s):

Viktor Shcherba ◽

Viktor Shalay ◽

Evgeniy Nosov ◽

Evgeniy Pavlyuchenko ◽

Ablai-Khan Tegzhanov

Keyword(s):

Experimental Studies ◽

Operational Parameters ◽

Work Processes ◽

Free Piston ◽

Hybrid Power ◽

Power Machine ◽

Hybrid Power Machine ◽

Simplifying Assumptions ◽

Cylinder Piston ◽

Groove Seal

This article considers the development and research of a new design of crosshead-free piston hybrid power machine. After verification of a system of simplifying assumptions based on the fundamental laws of energy, mass, and motion conservation, as well as using the equation of state, mathematical models of the work processes of the compressor section, pump section, and liquid flow in a groove seal have been developed. In accordance with the patent for the invention, a prototype of a crosshead-free piston hybrid power machine (PHPM) was developed; it was equipped with the necessary measuring equipment and a stand for studying the prototype. Using the developed mathematical model, the physical picture of the ongoing work processes in the compressor and pump sections is considered, taking into account their interaction through a groove seal. Using the developed plan, a set of experimental studies was carried out with the main operational parameters of the crosshead-free PHPM: operating processes, temperature of the cylinder–piston group and integral parameters (supply coefficient of the compressor section, volumetric efficiency of the pump section, etc.). As a result of numerical and experimental studies, it was determined that this PHPM design has better cooling of the compressor section (decrease in temperature of the valve plate is from 10 to 15 K; decrease in temperature of intake air is from 6 to 8 K, as well as there is increase in compressor and pump section efficiency up to 5%).

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Algorithmic management in a work context

Big Data & Society ◽

10.1177/20539517211020332 ◽

2021 ◽

Vol 8 (2) ◽

pp. 205395172110203

Author(s):

Mohammad Hossein Jarrahi ◽

Gemma Newlands ◽

Min Kyung Lee ◽

Christine T. Wolf ◽

Eliscia Kinder ◽

...

Keyword(s):

Information Exchange ◽

Rapid Development ◽

Machine Learning Algorithms ◽

Organizational Level ◽

Future Research ◽

Power Dynamics ◽

Work Processes ◽

Work Settings ◽

Standard Work ◽

Management Functions

The rapid development of machine-learning algorithms, which underpin contemporary artificial intelligence systems, has created new opportunities for the automation of work processes and management functions. While algorithmic management has been observed primarily within the platform-mediated gig economy, its transformative reach and consequences are also spreading to more standard work settings. Exploring algorithmic management as a sociotechnical concept, which reflects both technological infrastructures and organizational choices, we discuss how algorithmic management may influence existing power and social structures within organizations. We identify three key issues. First, we explore how algorithmic management shapes pre-existing power dynamics between workers and managers. Second, we discuss how algorithmic management demands new roles and competencies while also fostering oppositional attitudes toward algorithms. Third, we explain how algorithmic management impacts knowledge and information exchange within an organization, unpacking the concept of opacity on both a technical and organizational level. We conclude by situating this piece in broader discussions on the future of work, accountability, and identifying future research steps.

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