scholarly journals Enabling experimental greenhouse for high-tech application

Author(s):  
Martín Eduardo Rodríguez-Franco ◽  
Víctor Arturo Maldonado-Ruelas ◽  
Francisco Javier Villalobos-Piña ◽  
Raúl Arturo Ortiz-Medina

This work exposes the conditioning of the zenith greenhouse of the Polytechnic University of Aguascalientes for its conformation as a high-tech entity, through the adaptation of sensors, actuators and a controller, which ensure the supervision of the environmental conditions inside, mainly established by the variables of temperature and humidity. The development and application of a computer graphical interface is presented as an intuitive tool for monitoring and controlling the field devices used, and therefore, the environmental conditions provided or recorded from their activation. Likewise, the use of the open communication standard OPC is demonstrated as an alternative for effective interaction between the LabVIEW software, from which the management interface was developed, and the PLC, used as the system controller. The results achieved provide proof of the adequate operation of the devices adapted in the greenhouse installation, the compilation of the information associated with the performance of their task and the manipulation of their operation or reading, from the graphical interface developed for this purpose.

2020 ◽  
pp. 201-211
Author(s):  
Nilufar Ba

The aim of the article is the theoretical justifcation and development of the organizational and economic mechanism for the formation and development of a regional intentional complex, where innovative components dominate. It should be noted that in recent years in the region there have been trends in the deepening of the newest forms of relations and interconnections based on the expansion of inter-sectoral and sectoral integration of industrial enterprises, the progress of the formation of forms of regional industrial systems is traced, prerequisites are created for the emergence of new forms of integrated cooperation of the subjects of the innovation process. In modern conditions, the current model of the competitive development of the industrial complex of the region is based on the broad and effective interaction of various participants in the development and commercialization of innovations, which requires a search for forms and directions of its strengthening. The need to strengthen the innovative component of the industrial complex, contributing to its innovative development, involves the search for new modifed organizational and economic mechanisms for the innovative development of the industrial system based on the assessment of trends and development features of new system interactions. Meanwhile, the process of transition to a model of innovative development is objectively closely related to the need to concentrate efforts on the formation of a systematic methodology for managing the innovative development of the region. The article focuses on the development of organizational and economic mechanisms for the innovative development of the regional industrial complex. In particular, attention is paid to the intensive factors of industrial production growth. To achieve the goal, several main tasks were set and solved in the article.. The state of fxed assets for the development of industrial production in the region has been studied. The region was also evaluated based on the influence of innovation and investment factors. The current state and trends in the development of industry in the Tashkent region are analyzed, the basic prerequisites for the creation of an innovative industrial system in the region are studied, and trends in the innovative development of industry in the Tashkent region are evaluated. In conclusion, recommendations are given for eliminating the imbalance between the existing regions, as well as for accelerating the development of new high-tech industries of the industrial complex


2014 ◽  
Vol 2 (4) ◽  
pp. 267 ◽  
Author(s):  
Dwi Intan Af'idah ◽  
Adian Fatchur Rochim ◽  
Eko Didik Widianto

The environmental condition in a large areas often requires the monitoring. For example, in the case of greenhouse were used to cultivation experiments, fertilization experiments, plant resistance experiments, tissue culture experiments, experimental planting of crops in the off-season, and it needs equipment to monitor and control the environmental conditions to suit the characteristics required environment. The extent of land that is must be monitored, making it needs distribute the monitor at some point so that monitoring of environmental conditions can cover the entire desired area. This is the basis for the design of wireless sensor network for monitoring temperature and humidity using the communication module nRF24L01 +. The system consists of hardware for measuring the temperature and humidity at some point in a certain area. The system is divided into several sections that is referred to as nodes. Node in the system is divided into two functions, namely the sensor node and the concentrator node.. There are two the sensor nodes which will serve to data of temperature and humidity in separate areas and transmit data to the concentrator node. The communication between nodes is done using a module nRF24L01+. The design of communication protocol designed to connect between nodes concentrator with a sensor node capable of running properly. This makes the system capable of monitoring temperature and humidity through a web page, so it can be known conditions of temperature and humidity at some point at the maximum range of 93 meters.


Author(s):  
N. M. Abdikeev ◽  
Yu. S. Bogachev ◽  
A. M. Oktiabrskiy

The paper deals with the problems of reforming the organization of the production of high-tech products in Russia. A comparative analysis of the state and significance of these industries in the economies of developed countries and Russia shows the need for reforming the structural organization of production. On the example of the aviation industry, an analysis of the improvement of industrial production was carried out. Evaluation of the effectiveness of relevant measures shows that they contribute to the conservation of closed obsolete business-production models, monopolization of the final integrator in accessing and using investments, low labor productivity and outflow of personnel, lack of effective interaction of the scientific and technological sector with domestic academic university science. This impedes the formation of the competencies necessary to carry out a technological breakthrough and increase the competitiveness of the industry in the global market.The paper presents a model of vertical integration of the technological chain of value added reproduction in the form of network organizational structures of suppliers of modules, units and nodes of the final complex technology based on domestic manufacturers. The paper discusses the benefits of the heliocentric organization of the production of the final complex technology, the cluster organization of the supply of intermediate products (modules, units, nodes). It is shown that the separation of the functions of the final integrator contributes to the distribution of risks along the DVCS. At the same time, the attention of the final integrator is concentrated on the development of the final complex products, the organization of the supplier system and after-sales service. The cluster organization of intermediate production opens up the possibility of its diversification and direct access to investment flows, which stimulates the development of production. The authors have developed mechanisms for ensuring the competence of manufacturers to their functional purposes in the central air traffic control system and the organization of a network management system.


1955 ◽  
Vol 45 (4) ◽  
pp. 452-460 ◽  
Author(s):  
W. R. Beakley ◽  
J. D. Findlay

1. The respiration rates of three 4-month old Ayrshire bull calves were measured in individual 6 hr. daily exposures to 15, 20, 25, 30, 35 and 40° C. dry bulb temperatures at 17 mg./l. absolute humidity and at 7 mg./l. saturation deficit at temperatures of 30, 35 and 40° C. in a planned sequence of environmental temperature. The schedule of experiments on each animal lasted 45 days consisting of five replications of these nine environmental conditions. Throughout the experimental programme the respiration rates of these three animals and of three control animals were measured in a holding room just before the experimental animal of each pair was transferred to the hot room.2. The frequency of respiration of all the calves increased with increasing environmental temperature and humidity.


Weed Science ◽  
1969 ◽  
Vol 17 (3) ◽  
pp. 355-358
Author(s):  
Larry S. Jeffery ◽  
John D. Nalewaja

Ioxynil (4-hydroxy-3,5-diiodobenzonitrile) and 2-(2,4-dichlorophenoxy)propionic acid (dichlorprop) appeared effective for control of fumitory (Fumaria officinalis L.) of the 10 herbicides tested in 1963. In 1964 and 1965, both herbicides were further tested under field conditions, but fumitory control results were erratic. Fumitory plants which had been treated with dichlorprop, although not killed, did not produce seed. Experiments under controlled environmental conditions showed that susceptibility of fumitory to ioxynil and dichlorprop was affected by temperature and humidity. High temperature and humidity were necessary for both herbicides to completely kill the plants although dichlorprop injured fumitory under all the environments. Fumitory was more susceptible to dichlorprop applied at the early stages of growth and more susceptible to ioxynil applied at the later stages.


2014 ◽  
Vol 633 ◽  
pp. 3-6 ◽  
Author(s):  
Xiang Yun Lu ◽  
Lan Chen ◽  
Rui Lin Heng ◽  
Yun Zhang Cheng ◽  
Umezuruike Linus Opara

Powder flowability is one of the most important properties affecting the filling and delivering processes of dry powder inhalations. When the powder is exposed to different environmental (temperature, relative humidity (RH)) conditions, the interaction between particulates would influence the flowability of powders. Blends of 83% coarse lactose (D50=126μm) and 17% fine lactose (D50= 7μm) were prepared at three different mixing environments and the effects of temperature and humidity on powder flowability were investigated. Results indicated that mixing under relatively higher temperature and lower RH environmental conditions improved the flowability of lactose blends.


2012 ◽  
Vol 60 (6) ◽  
pp. 889-900 ◽  
Author(s):  
Ignacio González Alonso ◽  
Omar Álvarez Fres ◽  
Alberto Alonso Fernández ◽  
Pablo Gómez del Torno ◽  
J.M. Maestre ◽  
...  

2004 ◽  
Author(s):  
Rajesh R. Gomatam ◽  
Erol Sancaktar

The use of conductive adhesives to replace solder joint connectors and other joining methods has enjoyed rapid growth in recent years. Major reasons for their use in electronic packaging are efficient load distribution over a larger area, comparable joint electrical conductivity, and environmental concerns for tin/lead solder. There are a number of issues that one needs to be concerned about in the design of joints bonded using conductive adhesives. One of these is the cyclic fatigue behavior of conductive adhesive interconnects under different environmental conditions, in which fatigue failure might occur due to either mechanical or thermal stresses varying in a cyclic manner. This paper addresses the effect of various environmental conditions, such as, elevated temperature, and humidity on the fatigue failure of conductive adhesive joints. For this purpose, conductive adhesive joints were prepared using stainless steel adherends, and tested using monotonic and cyclic mechanical loading in different environmental conditions. Furthermore, an in-depth analysis of the damage-path is also presented through a spectrum of experiments involving variable loading methodology.


2014 ◽  
Vol 4 (4) ◽  
pp. 43 ◽  
Author(s):  
Leandro Rosniak Tibola ◽  
Carlos Eduardo Pereira ◽  
Liane Margarida Rockenbach Tarouco

Modern education needs use all resources to improve teaching-learning process. To achieve this goal, technology can be a sharp allied. Especially to the engineering education, which seeks the balance among theoretical and practice lessons. Thus, many universities are using the virtual labs and virtual worlds 3D like way to support the student's learning and enrich the teaching methods. High tech classes, broadband communication, mobility and ubiquity aren't enough if the student's engagement can't be measured. This work presents a proposal to monitor the virtual lab use by students, showing the educational parameters in a graphical interface, following the suitable pedagogical concepts.


2021 ◽  
Vol 41 (2-3) ◽  
pp. 35-45
Author(s):  
Lucas Lemos ◽  
Chris Giotitsas

This article examines a community producing complex space technology. We attempt to highlight which aspects of the community’s activities can help democratize high-tech development while providing a context for similar cases involved in developing and manufacturing nonhigh-technological artefacts. We discuss how this has been made possible by using a technology-determined organizational approach based on the CubeSat open platform infrastructure, blending formal and hands-on education, open communication, specific recruitment and working practices, and a genuine passion for technology. We identify as critical enablers for community-based collaborative development of space technology the open-source architecture standard called CubeSat Design Specifications, the modularization of work in subsystems and between different organizations, and the open and participatory approach work tasks distribution and decision making. Moreover, we argue that the digital/informational aspect of this technology allows the community to implement organizational practices that resemble how open-source movements over the internet produce complex digital artefacts like Wikipedia or Linux. ESTCube can shed light on community-driven complex technology development, providing lessons on what a democratized version of high technology would resemble and how open and digitalized technology can help develop the capacities of a community.


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