scholarly journals How Cellular Agriculture Systems Can Promote Food Security

2021 ◽  
Vol 5 ◽  
Author(s):  
Emily Soice ◽  
Jeremiah Johnston
Keyword(s):  
Food Security ◽  
Distributed Systems ◽  
Cell Cultures ◽  
Food Source ◽  
Economies Of Scale ◽  
Transportation Network ◽  
Supply System ◽  
System Models ◽  
Agriculture Systems ◽  
Centralized System

Cellular agriculture, the manufacturing of animal-sourced foods by cell cultures, may promote food security by providing a food source that is available, accessible, utilized, and stable. The extent to which cellular agriculture can promote food security, however, will depend in part on the supply system by which it produces food. Many cellular agriculture companies appear poised to follow a centralized supply system, in which production is concentrated within a small number of large plants and products are distributed over a wide area. This model benefits from economies of scale, but has several weaknesses to food security. By being built of a handful of plants with products distributed by a large transportation network, the centralized model is vulnerable to closures, as became clear for animal-sourced centralized system during the COVID-19 pandemic. Cellular agriculture systems are being built now; therefore, alternative supply system models of decentralized and distributed systems should be considered as the systems of cellular agriculture production are established. This paper defines both the requirements of food security and three possible supply system models that cellular agriculture could take and evaluates each model based on the requirements of food security.

XERIS/APEX

2021 ◽  
Vol 40 (2) ◽  
pp. 65-69
Author(s):  
Richard Wai
Keyword(s):  
Distributed Systems ◽  
Real Time ◽  
Distributed System ◽  
Dynamic Scaling ◽  
Distributed Application ◽  
Heavy Weight ◽  
System Models ◽  
In The Wild ◽  
On Line ◽  
Language Technologies

Modern day cloud native applications have become broadly representative of distributed systems in the wild. However, unlike traditional distributed system models with conceptually static designs, cloud-native systems emphasize dynamic scaling and on-line iteration (CI/CD). Cloud-native systems tend to be architected around a networked collection of distinct programs ("microservices") that can be added, removed, and updated in real-time. Typically, distinct containerized programs constitute individual microservices that then communicate among the larger distributed application through heavy-weight protocols. Common communication stacks exchange JSON or XML objects over HTTP, via TCP/TLS, and incur significant overhead, particularly when using small size message sizes. Additionally, interpreted/JIT/VM-based languages such as Javascript (NodeJS/Deno), Java, and Python are dominant in modern microservice programs. These language technologies, along with the high-overhead messaging, can impose superlinear cost increases (hardware demands) on scale-out, particularly towards hyperscale and/or with latency-sensitive workloads.

scholarly journals Map Reduce Based Optimized Frequent Subgraph Mining Algorithm for Large Graph Database

2020 ◽  
Vol 9 (3) ◽  
pp. 3131-3139
Keyword(s):  
Distributed System ◽  
Real World ◽  
Transportation Network ◽  
Vital Role ◽  
Graph Database ◽  
Frequent Subgraph Mining ◽  
Large Graph ◽  
Subgraph Mining ◽  
Frequent Subgraph ◽  
Centralized System

Distributed System, plays a vital role in Frequent Subgraph Mining (FSM) to extract frequent subgraph from Large Graph database. It help to reduce in memory requirements, computational costs as well as increase in data security by distributing resources across distributed sites, which may be homogeneous or heterogeneous. In this paper, we focus on the problem related complexity of data arises in centralized system by using MapReduce framework. We proposed a MapReduced based Optimized Frequent Subgrph Mining (MOFSM) algorithm in MapReduced framework for large graph database. We also compare our algorithm with existing methods using four real-world standard datasets to verify that better solution with respect to performance and scalability of algorithm. These algorithms are used to extract subgraphs in distributed system which is important in real-world applications, such as computer vision, social network analysis, bio-informatics, financial and transportation network.

scholarly journals Rice Supply Patterns in Kalimantan Selatan: Part of solution for regional food security

INSIST ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 214
Author(s):  
Arief RM Akbar ◽  
Alan Dwi Wibowo ◽  
Alia Rahmi ◽  
Sigit Prabawa
Keyword(s):  
Food Security ◽  
System Dynamics ◽  
Critical Role ◽  
Supply System ◽  
Security Policies ◽  
Land Productivity ◽  
Regional Food ◽  
Self Sufficiency

South Kalimantan is a largest rice producer in Kalimantan island. More than five years its rice met by their own production, moreover it has supplied to other area such as Kalimantan Tengah, Kalimantan Timur and Kalimantan Utara. In many studies, rice stocks play a critical role in determining the regional’s food security. In recent issues, rice stocks has a wide impact on an array of economic, political, societal stabilities. Unfortunately, most of the land in Kalimantan Selatan is classified as wetlands, where the land productivity is low. Therefore, this study analyzes rice supply patterns in Kalimantan Selatan in order to provide policies development toward rice self-sufficiency. This research is using system dynamics approach to explore the system which then develop any alternatives of rice policies. Eventually, this study provides evidences for the need to consider rice supply system in the regional’s food security policies.

Security Issues in Distributed Computing System Models

2017 ◽  
pp. 211-259 ◽  
Author(s):  
Ghada Farouk Elkabbany ◽  
Mohamed Rasslan
Keyword(s):  
Distributed Systems ◽  
Distributed Computing ◽  
Computing System ◽  
Computing Environment ◽  
Distributed Computing Systems ◽  
Computing Systems ◽  
Research Directions ◽  
System Models ◽  
Security Issues ◽  
Systems Security

Distributed computing systems allow homogenous/heterogeneous computers and workstations to act as a computing environment. In this environment, users can uniformly access local and remote resources in order to run processes. Users are not aware of which computers their processes are running on. This might pose some complicated security problems. This chapter provides a security review of distributed systems. It begins with a survey about different and diverse definitions of distributed computing systems in the literature. Different systems are discussed with emphasize on the most recent. Finally, different aspects of distributed systems security and prominent research directions are explored.

scholarly journals Design and Freight Corridor-Fleet Size Choice in Collaborative Intermodal Transportation Network Considering Economies of Scale

2019 ◽  
Vol 11 (4) ◽  
pp. 990 ◽  
Author(s):  
Dan Liu ◽  
Zhenghong Deng ◽  
Qipeng Sun ◽  
Yong Wang ◽  
Yinhai Wang
Keyword(s):  
Economies Of Scale ◽  
Cost Model ◽  
Transportation Network ◽  
Hybrid Genetic Algorithm ◽  
Pso Algorithm ◽  
Transport Cost ◽  
Intermodal Transportation ◽  
Fleet Size ◽  
Freight Consolidation ◽  
Vehicle Size

Decentralized freight decision has been proved to be one of the inhibitors to achieve a sustainable transport network. One important method also a key challenge is to determine how to coordinate and consolidate the transportation flow to get the best logistics performance. This study presents an intermodal transportation network considering freight consolidation through freight forwarders’ cooperation. We formulate the problem as a minimum intermodal transport cost model, which is a nonlinear, nonconvex and discontinuous function that involves volume economies of scale, distance economies of scale and vehicle size economies of scale. A hybrid genetic algorithm (GA) and particle swarm optimization (PSO) algorithm in combination with a batch strategy are used to solve the problem. Five different transport demand scenarios are tested on a real case on “China Railway Express” (Crexpress). The choices of reasonably corridor and fleet size combination are provided.

scholarly journals Search for ways of reconstruction of the gas transportation network to reduce gas deficits in consumers in emergencies in the gas industry

2020 ◽  
Vol 216 ◽  
pp. 01003
Author(s):  
Sergey Vorobev ◽  
Sergey Senderov ◽  
Alexey Edelev
Keyword(s):  
Invariant Measures ◽  
Transportation Network ◽  
Supply System ◽  
Gas Pipelines ◽  
Short Term ◽  
Gas Industry ◽  
Reducing Gas ◽  
Critical Facilities ◽  
Gas Supply

The article is devoted to the search and identification of possible invariant measures aimed at reducing gas shortages among consumers in the event of emergencies at critical facilities of the gas industry. The study was carried out on the example of the Unified Gas Supply System of Russia and is a logical development of the topic of searching and identifying critical objects of the system. The article presents a list of the most common sections of gas pipelines, the throughput of which is insufficient in the situations under consideration. As measures to reduce gas shortages among consumers in emergencies at critical facilities, the expediency of both a short-term increase in the throughput of the sections and the laying of additional sections of main gas pipelines is shown. Conclusions are drawn on the need to search for such sections of gas pipelines and to apply measures to them aimed at increasing the efficiency of the Russian gas industry in emergencies.

Livestock in the Food Debate

2014 ◽  
Author(s):  
Purvi Mehta-Bhatt ◽  
Pier Paolo Ficarelli
Keyword(s):  
Developing Countries ◽  
Food Security ◽  
Developed Countries ◽  
Policy Implications ◽  
Farm Animals ◽  
Industrial Countries ◽  
Livestock Sector ◽  
Pros And Cons ◽  
Nutrition Value ◽  
Agriculture Systems

Livestock is an integral part of agriculture and a prominent source of food. It contributes 40% of the global value of agricultural output and supports the livelihoods and food security of almost a billion people, especially in developing countries. There is nothing new in amalgamation of farm animals in agriculture system, but the debate questioning its existence and relevance is a rather new drift. The politics, the climate debate, the nutrition debate around livestock sector, especially levitating from industrial countries, needs to be sympathetic toward the millions of people, especially in developing countries, that continue to remain dependent on livestock as an important, or often the only, source of livelihood. This chapter looks at the diverse livestock agriculture systems in industrial and less developed countries and it’s policy implications. It re-examines the prevailing debates such as, the heat and meat debate, the zoonotic disease discussions, the debate on ethics around animal-source food and the debate of over- and undernutrition. The authors take a balanced view on the pros and cons of livestock sector, considering the global debates, but at the same time, looking at livestock sector’s socioeconomic and nutrition value for the poor. Take a global view, debate, campaign but don’t forget to also look at the sector from livelihood and food-security angle. The underline message of the chapter is to call for a bounteous outlook, evidence-based debate and equable policies.

scholarly journals Edible insects as a food source: a review

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Chufei Tang ◽  
Ding Yang ◽  
Huaijian Liao ◽  
Hongwu Sun ◽  
Chuanjing Liu ◽  
...  
Keyword(s):  
Food Security ◽  
Food Source ◽  
Edible Insects ◽  
Protein Sources ◽  
Long Time ◽  
Current Production

Abstract The practice of eating insects has been documented for a long time. With obvious economic and environmental advantages, edible insects are in the spotlight recently due to their enormous potential in multiple industries. A number of research has been conducted to maximize their value, but concerns have been raised for the food security. In this review, we compared the characteristics of edible insects with other traditional protein sources. The progress of modern entomophagy was introduced. The benefits and risks of eating insects were summarized. Additionally, the shortcoming of current production were discussed. Feasible ways and strategies were proposed to promote the consumption of edible insects. Graphical abstract

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