Technical Management Measures Research Articles

Application of Random Forest Algorithm in Network Intrusion Detection of Government Affairs Departments

This paper reviews the current situation of intrusion detection and the commonly used random forest (RF) method, and confirms that support vector machine (SVM) and artificial neural network (ANN) are good methods, which are important components of building state network information security. Very complex and critical system technology. Appropriate security strategy must be based on the real needs of the government, guided by design principles, and establish a comprehensive and dynamic security system with technical management measures to truly protect government information security and maximize government efficiency. In this environment, we get the following conclusions: (1) In the performance test of different RF algorithms, the accuracy of the traditional RF algorithm is 83.4%, the security is 79.3%, and the correlation is 84.9%. In the data, we conclude that the high-dimensional clustering RF algorithm is the best in the performance test of different RF algorithms. (2) The security awareness and cognition of users also account for 6%, which shows that the security awareness of many users in government departments is not perfect, and the main reason for network intrusion in government departments is the intrusion of intruders and malicious code.

Estimating discard survival of European sea bass (Dicentrarchus labrax) in the UK commercial hook‐and‐line fishery

AbstractDespite the implementation of technical management measures to facilitate stock recovery of European sea bass, Dicentrarchus labrax (L.), the survival rate of discarded hook‐and‐line caught sea bass remains unknown. This makes the effectiveness of management measures that result in discarding difficult to assess. Therefore, a questionnaire was distributed to 421 UK‐based commercial hook‐and‐line fishers (65 respondents) to characterise how sea bass are caught, handled and released. Responses suggested fishing was selective with a reported estimated mean discard rate of 12.9% (±3.3% SE). Low rates of foul and deep hooking, and short periods of air exposure were reported. Combined with data from a post‐release mortality experiment using hook‐and‐line caught captive sea bass, a fleet‐wide discard survival rate of 89.3% (±2.6% SE) was calculated for the UK commercial hook‐and‐line sea bass fishery. This survival rate suggests that technical management measures, for example minimum conservation reference sizes and catch limits, could be effective tools for managing the sea bass hook‐and‐line fishery.

Discussion on Technical Management Measures of Construction Site

Discussion on Technical Management Measures of Construction Site

A spatially explicit individual-based model to support management of commercial and recreational fisheries for European sea bass Dicentrarchus labrax

The European sea bass (Dicentrarchus labrax) is a slow growing and late maturing high value fish that is exploited by both commercial and recreational fisheries. In recent years, scientific assessments have shown a rapid decline in spawning stock biomass around the UK attributed to poor recruitment (driven by environmental factors) and high fishing mortality. This resulted in significant reductions in the harvest of sea bass following technical measures implemented by the European Commission to conserve stocks. Individual-based models (IBMs) are simulations of individual ‘agents’ of organisms that interact with each other and their environment locally and have been shown to be effective management tools in many systems. Here, an IBM that simulates the population dynamics and spatial distribution of sea bass was developed to assess how technical management measures applied to subsets of the population impact the overall stock. Conventional stock assessment techniques were used to model the processes affecting population dynamics, while the spatial distribution was simulated using a combination of temperature preferences and information from tagging studies. The IBM was parameterised using existing knowledge from the literature and can mimic key assessment outputs used to inform management and advice on fishing opportunities. Utility of the IBM is demonstrated by simulating the population consequences of several key management scenarios based on those implemented by the European Commission, including short-term bans on pelagic trawling in spawning areas, commercial and recreational catch limits and increasing the minimum conservation reference size. The IBM has potential to complement the annual stock assessment in managing European sea bass because it models individual movement, environmental drivers and emergent spatial distribution, thereby providing enhanced predictions of management strategy outcomes that could inform spatial advice on fishing opportunities and policy.

Effective Strategies of Construction Design and Management in Construction Site

<p>At present, all walks of life are carrying out deepening reforms, and the construction industry is exploring scientific and more feasible technical management measures to ensure the engineering quality of enterprises. Based on this, this paper briefly expounds the problems existing in the process of construction project management and construction design control, and puts forward a series of effective measures for Europeanization of construction design, aiming at improving the overall construction level of the construction industry and promoting the rapid development of the construction industry.</p>

MANAGEMENT AND EVALUATION OF EFFICIENCY OF USING THE PRODUCTION POTENTIAL OF A CONSTRUCTION ORGANISATION IN AN UNSTABLE ECONOMIC ENVIRONMENT

Objectives To solve one of the complex and relevant problems of the modern economic science by optimising the management of development and evaluation of the efficiency of production processes in construction organisations. The aim of the work is to develop the effective management of organisational and economic aspects of the production potential of a construction organisation in an unstable economic environment. Methods . As a methodological basis for the study, principles of situational management of complex socio-economic systems and means of calculating the efficiency of production potential loading of construction organisation are employed on the basis of the ratio of production activity financial results to the costs of input factors introduced into the production process. Results . The necessity for managing the production potential of the construction organisation and its goals are substantiated. The rules are systematised, allowing organisational-economic and organisational- technical management measures to be promptly identified on a situational basis, these being the most effective in the current economic situation SE to eliminate the differences between the situations ST and SC. The set of such inference rules for each element of the production potential of the construction organisation ai, i = 1,2, ..., 5 will determine the situational model for managing the production potential of the construction organisation in various situations SjE, the economic environment for which the actual or desired model of the state of its production potential form a reference. Methods for balancing production factors introduced into the production process and estimating the efficiency of loading the production potential elements in production processes are proposed. Conclusion . The proposed technology of situational management of targeted development of various production potential elements, based on the accumulated advanced experience of effective management of production activities, provides a means for managing the effective functioning of construction organisations. The proposed methods for managing and evaluating the efficiency of the productive potential usage make it possible to increase the efficiency of development and production activity of a construction organisation under the changing conditions of the contemporary market.

Influence of temperature, precipitation, and cultivar characteristics on changes in the spectrum of pathogenic fungi in winter wheat.

In view of the threat posed by climate change, we studied the influence of temperature, precipitation, cultivar characteristics, and technical management measures on the occurrence of phytopathogenic fungi in wheat during 2009-2013. This work involved experiments at two sites differing in average temperatures and precipitation. Temperature and precipitation appear to influence differences in the spectrum of phytopathogenic fungi at the individual sites. In 2009 (the warmest year), Alternaria triticina was dominant. In 2010 (having the smallest deviations from the average for individual years), Septoria tritici dominated. In 2011, Puccinia triticina was most prominent, while in 2012, the genus Drechslera (Pyrenophora) and in 2013, S. tritici and Drechslera tritici-repentis (DTR) dominated. Temperature and precipitation levels in the individual spring months (warmer March to May) played a large role, especially for the leaf rust P. triticina in 2011. A change of only 1°C with different precipitation during a year played a significant role in changing wheat's fungal spectrum. Cluster analysis showed the differences between single pathogenic fungi on wheat in a single year due to temperature and precipitation. Alternaria abundance was strongly influenced by year (p<0.001) while locality was significant only in certain years (2012, 2013; p=0.004 and 0.015, respectively). The same factors were revealed to be significant in the case of Puccinia, but locality played a role (p<0.001) in different years (2011, 2013). The abundance of S. tritici and Pyrenophora tritici-repentis (Drechslera tritici-repentis) was influenced only by year (p<0.001).

Behavior of different trawl codend concepts

The overall objective of this study was to evaluate the behavior of different codend designs to provide basic information that is relevant for implementing technical management measures, improving selectivity and catch quality, and reducing energy consumption. Six different codend designs were evaluated: a traditional diamond mesh codend; a T90 codend (meshes turned 90°); a Bacoma codend with diamond meshes in the lower panel and square meshes in the upper panel; a Bacoma codend with the square meshes orientated in the T0 direction; a two panel square mesh codend; and a four panel square mesh codend. The codends were tested in a flume tank with flow of 1.8knots/h. A simulated catch of 500kg was placed in the tested codend. A motion tracking system was used with four track markers placed on each of three successive cross-sections and a single marker at the end of the codend. This made it possible to assess and compare the movements of the codend and the netting in three dimensions. The drag of the codends also was measured and compared.

TEMAS: fleet-based bio-economic simulation software to evaluate management strategies accounting for fleet behaviour

Abstract Ulrich, C., Andersen, B. S., Sparre, P. J., and Nielsen, J. R. 2007. TEMAS: fleet-based bio-economic simulation software to evaluate management strategies accounting for fleet behaviour. – ICES Journal of Marine Science, 64: 647–651. TEMAS (technical management measures) is a fleet-based bio-economic software for evaluating management strategies accounting for technical measures and fleet behaviour. It focuses on mixed fisheries in which several fleets can choose among several fishing activities to target different stocks in one or several areas. The software combines a management strategy evaluation framework, using a forward-running operating model and a management procedure with a fleet behaviour module simulating both short-term (effort allocation) and long-term (entry/exit) fleet dynamics. The suite of models behind TEMAS can be thought of as an extension of the traditional ICES forecast model. Alternative management scenarios can be compared and evaluated for their bio-economic consequences and robustness to parameter uncertainty. The software is generic and user-friendly, and can be run at several space and time scales.

The co-existence between transgenic and non-transgenic maize in the European Union: a focus on pollen flow and cross-fertilization

The ongoing discussion on the co-existence between genetically modified (GM) and non-GM crops becomes more important in the European Union (EU). With the recent inscription of 17 GM maize varieties in the common EU catalogue of varieties of agricultural plant species, the acreage of transgenic maize for market purposes is expected to increase in some European countries. In the EU, specific tolerance thresholds have been established for the adventitious and technically unavoidable presence of GM material in non-GM produce, and member states are elaborating legal frames to cope with co-existence. As maize is a cross-pollinated crop relying on wind for the dispersal of its pollen, technical management measures will be imposed to reduce cross-fertilization between transgenic and non-transgenic maize. Various biological, physical and analytical parameters have been identified to play a role in the study of cross-fertilization in maize. This variability may hamper the comparison between research results and may complicate the definition of appropriate isolation distances and/or pollen barriers in order to limit out-crossing. The present review addresses these parameters and proposes containment measures in order to not exceed the legal labeling thresholds in maize.

The development of fishermen-based policies

The development of fishing communities is considered with particular reference to Europe and the implications for developing country fishermen of globalisation of European fishing effort. Policy considerations which underlie the development of fishing communities include those relating to fisheries management objectives and the technical management measures which derive from these. The role of government in fisheries policies is considered with special attention paid to impact upon fishermen. Detailed consideration is then given to the development of fishermen's property rights as a management tool, including the introduction of individual transferable quotas (ITQs). In conclusion, the future of European fisheries policy is considered, with emphasis upon the need to arrive at workable regional management arrangements within Europe which, together with the introduction of fishermen based property rights will promote a more stable environment for the future development of fishing communities.

The management of the coastal zone of Europe

A review of the state of coastal zone management in Europe is provided in order to establish future management priorities and research requirements for the European coast. This focuses on information management, assessment procedures and the legal framework for coastal management. Analysis of the development patterns and pressures, and the environmental threats along the coast of Europe suggests that coastal zone management should be conceived within long-term, regional frameworks. Even technical management measures, which lie at the heart of coastal zone management, have a distinct regional dimension, although at present these tend to be organised on a national scale. It is suggested that there is still considerable scope for further integration between national management programmes, particularly those relating to information management. However, total restructuring of national governments and their legal systems, to achieve more holistic coastal management systems, is deemed impracticable: the onus must lie with local bodies to continue to improve their day to day management of the coast.