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The paper presents the results of research on the performance of linear electro-hydraulic servomechanisms with stepper motor, evaluated by mathematical modelling and numerical simulation with the AMESIM software package. These servomechanisms have a great potential for application, including for agricultural technical equipment. Servomechanisms of various types are used for the rapid and high precision operation of the various systems. In practice, electro-hydraulic servomechanisms have been required in the case of the systems requiring high forces or moments. These equipment are automatic hydraulic tracking systems and can be analysed with methods specific to automatic systems. The paper contains a structural description of an electro-mechanical servomechanism with stepper motor, its operation, mathematical model and its performances obtained by numerical simulation. The mathematical modelling of the electro-hydraulic servomechanism is based on the relations between the input sizes and output sizes of the equipment in its structure as well as the connection relations between these equipment. Based on the obtained results it is demonstrated that the analysis and synthesis of electro-hydraulic servomechanisms with stepper motor can be determined by numerical simulation using the AMESIM simulation software. [ABSTRACT FROM AUTHOR]

This article presents results obtained by the author in an attempt to introduce new parameters that influence the working process of agricultural soil working machines, in the classical formulas that mathematically model the tillage draft force. This article naturally introduces soil moisture. To introduce soil moisture into the calculation formulas of the tillage draft force, other physical parameters affected by soil moisture were used: density, cohesion, adhesion, etc. In this article, is explicitly describes, only the variation of soil density with its moisture. Considering some phenomena such as soil swelling or shrinkage, required the development of an adequate mathematical model of the expression of the density of soil-water mixture, concerning the concentration of water and the densities of dry soil and water. The final formulas obtained are tested to experimental results from the literature. Finally, the author sets out his opinion regarding the use of the results in design calculations and regarding the elevation to the rank of physical law of a mathematical model represented by a formula with a large number of parameters, which in turn are still dependent on many others parameters. [ABSTRACT FROM AUTHOR]

Open innovation is a new paradigm for the development of agribusiness in Romania and the Danube macro-region. Studies on agro-food chains and clusters are still scarce. In the Romanian agro-food sector, 7 regional and cross-regional clusters are very active. This study aims to present the state of the art on open innovation in agribusiness in Romania, identifying how it is adopted, the role of clusters and the factors that influence this process, a collaborative platform for agro-food clusters and their members and future research possibilities. Is a need for internal organizational changes, the support of communication tools and an intellectual property model that encourage knowledge sharing. The main obstacles to the implementation of the digitization process in the agro-food sector are lack of expertise, high costs or in compatibility with the field of activity. Open innovation is a field that needs to be explored in different links in the chain, clusters being facilitators of this process. The challenges of agribusiness today demand more complex and systemic innovations that can be achieved through more open processes of product development. Clusters from agro-food sector are increasingly opening their innovation processes, streamlining their research and development activities with the expectation of better results. In general, the main barrier in establishing innovation alliances refers to the inherent risk of knowledge sharing, which creates a lack of trust between partners. The study could be a good practice model for other countries from the Danube macro-region. [ABSTRACT FROM AUTHOR]

The importance of computers has become very popular, the interaction between man and machine is indispensable every day. People's need and desire to communicate with machines naturally led to the evolution of natural language processing. While progress is being made in this area, it is likely that voice interaction systems will replace most portable and digital devices such as keyboards, card readers, etc. This paper presents the main paradigms for speaker recognition, being one of the most important and needed biometric feature and it also focuses on the use of these biometric technology for interactive voice response system for agriculture assistance to farmers. Agriculture has been the primary occupation of human being. Generally farmers do not have the scientific information or competence to find out the cause and solution of any situation that could appear as diseases of their animals or even crops, behavioral features etc. They could have difficulties with understanding machine language or even typing. To facilitate the farmer’s access to information regarding the solution of a specific kind of livestock or crops matter this paper proposes a concept of an interactive voice response system through their mobile phones; a model with voice response in many languages. This model will be advantageous in following conditions: for people with disabilities, people with few PC knowledge or even those who are very busy. Biometric recognition or, simply, biometrics refers to the automatic recognition of individuals based on their physiological and/or behavioral characteristics. The voice is a physiological feature (each person has a different vocal tract), but the recognition of a speaker is mainly based on the study of how it speaks, usually classified as behavioral. Speech recognition is a multi-application domain: security of any kind, telecommunication, daily activities, and now it could be used in agricultural situation. Speech Recognition summarizes a variety of issues such as recognizing isolated words, identifying speakers based on their voice tag, recognizing phonemes, etc. The utility of identifying people based on their voice is growing with the development of automation and telecommunication, and, also regarding the new-entry telephone line applications, the need to recognize the speaker has become more pressing. Speech recognition has a particularly high applicability due to the fact that this method is non-intrusive, universally accepted, with acceptable accuracy, and speech samples are easily sampled either by phone or by microphone. [ABSTRACT FROM AUTHOR]

Clusters play an important role in driving competitiveness, innovation and jobs creation in the EU. Romania currently has successful clusters in various economic sectors and services, including 7 clusters in agro-food. Agriculture has been and remains the support of the human existence, which is an important pillar of the Romanian rural economy. The agro-food sector had oscillating evolutions in the post-accession period, mainly generated by the need to get in line with the EU requirements. Stimulating smart technology assimilation across all economic sectors including agro-food value chains, promoting enterprise growth and clusters 4.0 is critical to many EU Member States. Partnerships between countries, regions, cities and clusters are essential in the next industrial modernization process, based on innovation. Clusters 4.0 calls for development of a generation of advanced cluster policies to respond to these new industrial challenges by facilitating cross-sectoral value chains, fostering internationalization, stimulating inter-regional investment and accelerating entrepreneurship and skills in digital production, environmental production, circular economy, service innovation and creative economy. In order to be ready for the future, clusters must be geared towards creating a smart value chains, international cooperation and cross-sectoral partnerships. This research paper proposes a model as a tool for agro-clusters to become "smart", also this proposal providing information on the most important steps in the creation and development of smart agro-clusters. The used research methodology was based on analysis and synthesis of the information on the economic and social aspects of the development of the agro-food sector and of clusters in Romania. In conclusion, the authors of this paper wanted to emphasize the necessity of the development of smart agro-clusters for the future smart specialization of the regions. [ABSTRACT FROM AUTHOR]

The Enterprise Europe Network (EEN) is a collaborative instrument for developing business/technological/research partnerships for entities around the world especially SME's (Small and Medium sized Enterprises). One of the key factors for business development is innovation. Innovation management can be assessed using specific methods and instruments. One of these methods is the approach developed by the ImP3ove Academy. The ImP3ove methodology is based on an on-line questionnaire which is filled out by the entity. The questionnaire contains a set of questions from different innovation management dimensions. These dimensions are: Innovation Strategy, Organization and culture, Innovation life cycle processes, Enabling factors and Innovation results. After filling the questionnaire, according to the entity's needs regarding to innovation management, a customized benchmark can be applied. Based on ImP3ove database the benchmark can be generated for industry sectors, countries and company size or age classes. Using the filled questionnaire and the benchmarking selection the on-line software based on the ImP3ove methodology can generate a report. This report contains the relevant elements of the innovation management assessment structured on the innovation management dimensions. The paper also presents the results and analysis of the innovation management assessment for various Romanian entities. The results of the innovation management assessment can contribute to the business development, increasing market visibility and increasing client confidence. [ABSTRACT FROM AUTHOR]

Clusters through their structure (the "four-leaf clover" model: members of the Business and Research-Development-Innovation areas, Authorities and Catalysts) play an important role in the innovation eco-system as accelerators for innovation and competitive value chains development of value in the smart specialization priorities. The services provided to the cluster members, especially aimed at creating synergies between science and research through the collaboration between the business environment and the RDI based mainly on demand and supply, are a real support for SMEs in order to increase their competitiveness through the implementation of advanced technologies, digitization, industry 4.0, new business models, open innovation 2.0 principles and circular economy. All of this creates the premises for the creation / development of competitive industrial value chains, based on innovation. Collaboration between and within clusters, especially the interdisciplinary and intersectoral one, is one of the keys to success on the global market. The paper also analyses the role of clusters at European level in the innovation ecosystem. Good practices are highlighted in the strategic areas of cross-sectoral and cross-regional collaboration. The potential of clusters as drivers of regional innovation is highlighted and the role of clusters in developing specific policy tools (such as innovation policy, cluster policy, industrial policy, value chains) is analysed. [ABSTRACT FROM AUTHOR]

The paper presents a structural model of the smart farm to improve environmental protection. This model is based on a digital platform that integrates all the elements that participate directly or indirectly in decision-making into agricultural farm. An intelligent farm must manage optimally and efficiently in the spirit of sustainable agriculture and environmental protection the following components: agricultural lands, farm energy balance, inputs and outputs in accordance with the applicable regulations and environmental protection. Thus, this ensures mainly: - The optimal structure of agricultural crops and efficient rotation of these crops; - The optimized map of application of general inputs (chemical and natural fertilizers, etc.) - Optimization of the usage of the energy sources: tractor, electric power, photovoltaic energy, wind energy and other kind of renewal energy; - Optimization of the machinery (installed power, performant types, costs); - Optimization of the energy type, depending on activities, operations, etc.; - Energy efficiency through the use of combined resources; - Optimization of technologies; - Optimization of cost-benefit; - Framing into environmental norms; - Social responsibility. The informational elements and equipment are presented together with the sensors involved in development of an informational framework. Developing on a digital platform will be able to contribute to making decision and increasing the agricultural yield and environmental protection. At the same time, the platform can be a means of command and control of all components and equipment used in a farm. A special attention will be given to the next databases that can be as follows: - Traceability GIS databases: maps with the historic of cultures location, maps with the historic of agriculture yields; maps with the historic of nutrients and phytosanitary treatments distribution; - GIS databases with exploitations: yields maps; soil properties maps; maps with needed irrigations; maps and files for command and control of nutrients distribution and phytosanitary treatments using adequate equipment. [ABSTRACT FROM AUTHOR]

This paper presents a study of the structural models convergence, rezulted from CAD (Computer Aided Design ), based on method of estimation. The study of the structural models convergence presented a method based on the convergence, in the sense of mathematical analysis, adapted to finite strings. The convergence estimators are status sizes that characterize the response of the structural model to the given load. As convergence estimators can be used sizes that characterize the response of the structure, like follows: relative displacements (translations, rotations), specific strains, equivalent stress (Von Mises), components of the displacement velocity vector, local sizes that characterize cinematic phenomena, components of the acceleration vector, local sizes which characterize dynamic phenomena: the temperature in the body, etc. For the convergence study of a problem, one can use a single mathematical model for a given structural analysis problem. The mathematical model is resolved by numerical or analytical methods, refining the meshing, respectively, increasing the number of the series terms, until it touches the convergence. More models can also be used for a problem. Each model is refines until the results, in terms of the convergence estimators, are close enough. [ABSTRACT FROM AUTHOR]

The social innovation in clusters is a novelty for Romania and the paper presents a scientific method to evaluate and monitor of the social innovation performances in clusters. Clusters are drivers of entrepreneurship, innovation, economic growth and jobs. The paper intends to focus on the objectives related on the innovative capacity of clusters and of linkages that involve social relationships or networks that produce benefits for the cluster members, on the competitiveness of clusters and their potential of creating new jobs, on tools and measures to increase social innovation and on social awareness within cluster for closing the gap between the needs of cluster members and the educational/R&D output to reduce the gap between clusters from EU and Ro. From a methodological point of view, the research paper encompasses 4 components: 1) Cluster development in Romania and promotion of social innovation, 2) Elaboration of a scientific method to improve the cluster impact on innovation, economic growth and social integration, 3) Expected results using specific tools for the new method developed (social innovation audit; benchmarks; foresights; IP audit; specific questionnaires) and a large scale dissemination including: a Guide on social innovation in clusters in the near future; the creation of the Ro-EU cluster networks and a national platform for collaboration on social innovation in Romania, 4) Conclusions on cluster willingness to embrace this concept of social innovation primarily because there is a new sense of urgency in the need to find solutions to many of the clusters problems. [ABSTRACT FROM AUTHOR]

This article shows the results obtained by applying a study method of the convergence of structural models, for the particular case of a structural model from the geotechnical domain. For this purpose, is used the study method of the structural models convergence, already widely used in the field of research and CAD - CAE design. For a larger relevance and utility is presented the convergence study of a structural model for a ground section to which it applies a uniform load. The problem of ground compaction is solved by using the finite element method. Is applied a study method of the convergence of the structural model in order to estimate more accurate the stress and compaction of the soil, while reducing as much as possible the computational effort. This simple example demonstrates the need for the study of convergence. Two important reasons underlying the need for this study. The first is the satisfying accuracy of the expected results. The second reason relates to the formation of the experience to choose the meshing step for users of such as programs. In essence, the two requirements can be synthetically expressed by obtaining an optimal meshing (broadly) so as to obtain the necessary results with desired precision in the shortest time possible. Through the study presented in this article, we hope to open debates on convergence structural models in geotechnical, at least as interesting as those of the CAD-CAE domain. [ABSTRACT FROM AUTHOR]

This paper presents the structure of an e-learning system and applications designed and adapted to help the internet users to easy access to knowledges and courses, in order to improve the public awareness on environmental management and protection. The e-learning system has been developed using web technology and database programming in open-source software system, which allows easy updating and maintenance of the information contained. The e-learning platform includes actively and directly usable, updated information about the environment, relevant, representing an easy tool for: - Improving the public awareness for management and environmental protection; - Environmental knowledge transfer to specialized training environments, organizations with environmental impact and other stakeholders and also to the public. Based on the web platform for self-training and on-line assistance training, the target groups (environmental specialists from environmental organizations, as well as those from organization with environmental impact, higher education and the environmental education, general public, secondary and gymnasium school, etc.) will be trained in management and environmental protection. Beside of self-learning, the web platform users have unlimited access to a lot of interest aspects on environmental management and protection, like: legislation in domain, diverse types of management systems, links to the others specially sites, a discussion forum, cases studies, presentation of technologies for solving the environmental problems, etc. [ABSTRACT FROM AUTHOR]

The environment is in continuous transformation because of human action and natural factors. The human society is beneficiary of the environment, which through its activity and creation can produce harmful or beneficial effects on it. This paper presents a the structure and application for a spatial database based on GIS (Geographic Information System) with environmental impact effects and phenomena, designed and adapted to help the public to easy know the effects and consequences of harmful practices in interaction with the environment. GIS database will be available online under web platform and allows online access to locations with environmental impact and problems. The structure contains layers and geographical information. The interaction and administration of the database will by assured by web interfaces. The applications will be based on analysis of a county from Romania. In terms of structural, conceptual and application level, it can be adapted to a region of any European country. [ABSTRACT FROM AUTHOR]