Tag Archives: Technology

What Are Access Controls

Access controls are those security systems whose function is to determine who can use what, managing resources, users and permissions according to a series of criteria laid down previously by the system administrator. Access controls are applied in many types of situations, such as physical persons access to facilities, vehicle access to restricted areas, users access to computer systems, control of presence or schedule. Operation of access controls access controls are basically mechanisms which, in function of the identification and authentication of the user, or not authorized access to campuses, data or resources. Access controls play their task in several steps: identification: the user requesting access to the system, which requires some sort of credential that identify you, such as a password, user name, card or fingerprint, that will be subsequently validated the individual or not in the authentication process. Authentication: the system verifies the identity of the user, i.e., checks if the user is who he claims to be, checking the credentials provided by the user in the identification. Authorization: the system checks the permissions of the user and verifies whether it is authorized to access resources requested or to perform functions that aims to. Registration: access controls allow you to know who, what and when accessed, as well as who tries it, so you must save a complete record of all incidents in order to control its activity at all times. Methods of identification and authentication in access controls are used various methods of identification and authentication: systems based on something the user knows: as a password, username or PIN (Personal Identification Number, personal identification number).

Systems based on something the user has: as a card of identification, smart card (smartcard), barcode or USB device. Systems based on a physical characteristic user: this type of access controls are based on verified biometric patterns such as fingerprints, iris, retinal pattern, facial recognition or DNA recognition. Systems based on something the user does: as voice pattern, writing or signature. Systems based on location and schedule: access controls based on the time, logical or physical location of the person. These systems are not mutually exclusive and usually access controls combine several, for example, a card ID and a PIN. Methods of authorization at the stage of authorization of access controls, the system examines applications for users, and by applying a predefined rules, accept them or reject. To define these rules the system administrator assigns permissions in application of some type of security policies. There are many possible approaches in the security policies, such as MAC, DAC, RBAC, ACL, MLS, all denied, all authorized or least privilege.

Styrofoam Solution

The data presented shows in a single experiment can get a range of densities mentioned solutions depending on the concentration. With increasing concentration of the solution density increases significantly, being in the range of densities gum turpentine and resin polystyrene, reaching 40% for solutions concentration of 0.957 g/cm3 density polystyrene 1.05 g/cm3. The amount of waste expanded polystyrene (Vpp, cm3) to obtain the appropriate concentration of solutions obtained by dividing the sample of the waste in the waste density polystyrene (0.02 g/cm3). The amount of waste polystyrene foam table. Several characteristics of the processes of waste polystyrene into solutions of gum turpentine, depending on their concentration. p / n Name of the characteristics of gum turpentine concentration,% 10 20 30 40 1.

Weight of the solution P, g 26.415 29.350 33.018 37.736 44.025 2 increase in mass solutions DP,% 100 111.11 124.99 142.85 166.66 3 volume of the solution V, cm3 30 32.8 36.0 40.0 46.0 4 Increasing fluids, DV,% 100 109.33 120.00 133.33 153.33 5 Densities of g, g/cm3 0.88 0.894 0.917 0.943 0.957 6. Mass of waste polystyrene foam, Pnn, r – 2.935 6.603 11.321 17.610 7 The amount of waste polystyrene foam, Vpp, cm3 – 146.75 330.15 566.05 880.5 8. The amount of waste polystyrene to produce. 1 cm3 of a solution (Vpp / V), cm 3 – 4.47 9.17 14.151 19.140 cm3 for a given concentration of solution (Vpp / V) obtained by dividing the volume of waste Styrofoam on the volume of solution V. The most interesting from the perspective of a high degree of compaction of waste polystyrene and their use in casting a 40% solution. He has sufficient fluidity to Dosage and smeseprigotovleniya sand molding and core mixtures in conventional mixers operating mode without changing their operation. The authors of this paper suggested formulations and methods of cooking such mixtures with very high strength characteristics comparable to much (an order of magnitude) more expensive resin binders 6.

Humidity Sensors from Honeywell

Honeywell is cemented traditionally strong position of the humidity sensor, expanded its series of hih. Now, developers are available humidity sensors in versions and with additional hydrophobic filter, as well as sensors for SMT-mounting. Used for measuring humidity sensors based on different physical principles and implementation of various technologies. We can distinguish four basic types of sensors: capacitive, resistive, based on tin oxide and aluminum oxide. Let us consider briefly the characteristics of each type. Of those presented four main types of measuring humidity in the best possible combination of parameter is the capacitance. It provides a wide measurement range, high reliability and low cost by using microelectronic technology. The latter allows the capacitance of a planar type thin-film method.

Due to this we have the miniature size of the sensitive element, the possibility of implementing on-chip application-specific integrated circuits for signal processing. Processability and high yield crystals provide a low cost of production of this type. Thus, for capacitive humidity measurement method is the best. We now consider the distinctive features of capacitive humidity sensors, offered to our attention a company Honeywell. The sensing element is a multilayer structure. On a silicon wafer deposited platinum film, which forms the first electrode of the capacitor. Insulator between the plates is a thermoset polymer, on top of which is made the second plate of the capacitor – the platinum film with perforations, allowing moisture to penetrate to the absorbent layer and change its relative dielectric constant of , and accordingly – and the capacity C of the capacitor.

Reading Card

Cards of memory: they store information and depending on the used technology, they can be dismissable or you reused. It does not have processing in the card and yes in the reading machines. b) Cards with microprocessor: ‘ is considered; ‘ verdadeiro’ ‘ smart card therefore possesss a CPU with capacity to effect commands and an area of memory to store information. It is reloadable in specific terminals ATM, terminals or even though through on personal computers to the current account of the possessor. When storing information, hinder double-spending. c) Hybrid cards: they are those that beyond chip, they possess also tarja magntica.3.1.2 How much to the form of they contatoPodem to be with contact, where the access to the data and applications of smart cards if give through the physical contact with the device of reading, that if communicates for electric signals, or without contact (contactless), where does not have contact necessity Smart cards with chip function using an only criptografia, that is, a species of code that not only keeps the information, but processes also them. After these information to be stored the using one Duplication of the electronic representation passes the card in a reading machine of double-spending-, as a card or e-money, and to use more than a time, with this duplicate the disponibilizados resources originalmente.cartes with chip, which makes the recognition of the information, legalizing them through the data with a digital signature, contained in chip. The authentication is one method used for the confirmation and/or certification of that the same bearer or an user of the banking card intends to carry through definitive operation, quese of the one through the introduction of the private code or password. In substance of Interesting the Super magazine (Worcman, 1998), it describes that each operation functions as if was a criptografada colloquy, where the used code a time does not function as if it was a criptografada colloquy, where the used code a time cannot be reaproveitado, this data is not visible to the user, is part of the decoding of the information.

Classification Criteria For ACS

ams classification strongly depends on the classification criteria. By the form used by the control device information distinguish open and closed ACS: in open systems there is no feedback between the output of control object and the input control device. In such systems, value-driven not controlled. If there is a feedback facility management and control unit form a closed loop provides automatic monitoring of control object. By the nature of changes in the driving influence of acs can be attributed to the following types: automatic stabilization, giving the effect that constantly, and these systems are designed to maintain consistency of some physical parameter (temperature, pressure, speed, etc.), program control, giving the effect that changes in any previously known to the law (for example, a given program can be modified speed motor drives, change the product temperature during heat treatment, etc.) tracking, giving the effect which varies according to the arbitrary, a priori unknown to the law (used to control the parameters of the control objects in the external conditions). In recent years, are becoming increasingly important adaptive control systems, characterized by action on the object of management of any completely unknown factors. As a result, the need to solve the control problem under uncertainty of input data for decision on control actions. These systems can adapt to environmental changes and the object management, and improve its performance as experience is gained, ie information on results management.

In turn, adaptive process control are divided into: the optimal, which provide automatic maintenance of the facility management of most advantageous mode, self-tuning, the parameters of the control object which is not remain unchanged, and converted to a change in external conditions, self-organizing, algorithm which does not remain unchanged, but improved when the parameters of the object management and external conditions, self-learning, which analyze the experience gained object management and on this basis will automatically improve its structure and method .Po nature of the acs is divided into continuous and discrete actions. In the continuous process control for continuous variation of the input signal also varies smoothly and the output signal. In the discrete process control for continuous variation of the input signal output signal changes abruptly. Management methods based on the use of digital technology, always lead to discrete control systems. By the nature of change the tone settings of acs can be divided into linear and nonlinear, steady and unsteady. By number of parameters themselves ams are one-dimensional or multidimensional (multiparameter). It should be noted that the classification of the acs can also be constructed on the basis of other criteria, for example, can be classified by acs the physical nature of the system or its major parts, the power actuator, etc. Each of these methods of classification of acs is often independent of the others. This means that each of them can be represented as a scale in a multidimensional phase space, while the specific process control in this space will correspond to points or certain areas.

Global Carbon Project

According to the testimony of experts, the pact, developed over 10 years provides for the introduction of new environmental standards and prohibit almost any water drain outside the protected basin. Commenting on the ratification of the pact, the National Federation of the protection of wildlife in the United States stated that to share the Great Lakes for more than 90 percent of all freshwater in the country and is updated annually, less than 1 percent of these reserves, which puts them at risk of malnutrition. Growth in emissions of greenhouse gases in the world is at a record pace Scientists sound the alarm – the growth of greenhouse gases every year increases. The volume of global emissions of carbon dioxide (CO2) from 2000 to 2007 grew four times faster than during the previous decade. Even on the most worst-case scenario of climate change, scientists could not assume that the concentration of greenhouse gases will be so big. This unprecedented and astonishing acceleration in CO2 emissions to the atmosphere, despite the made within ten years of international efforts to combat global warming. A report published by a group of international experts, Global Carbon Project (GCP) states that the greatest contribution to greenhouse gas emissions contribute Asia: China overtook the United States and became the first country in the world by CO2 emissions in 2007, while India is about to take away from Russia to its third place. The greatest increase in emissions observed in developing countries, mainly in China and India, whereas in developed countries experienced slower growth.

Inventory

Accounting of the assets Agrees that all the main sejaminventariados assets of information and has a responsible proprietor. The inventory of the ativosajuda to assure that the protection is being kept of adequate form. Convmque the proprietors of the main assets are identified and sejaatribuda the responsibility to they for the appropriate maintenance of the controls. Aresponsabilidade for the implementation of the controls can be delegated. It agrees quea responsibility for the rendering of accounts is with the doativo nominated proprietor. Classification of the Objective information: To assure that the information assets receive adequate umnvel of protection. It agrees that the information is classified to indicate aimportncia, the priority and the level of protection. The information possesss some levels of sensitivity ecriticidade.

Some item can need an additional level protection special outratamento. It agrees that a system of classification of the sejausado information to define a set appropriate of protection levels and to determine anecessidade of special measures of treatment. Security in people Security in the definition and recursosde work Has for objective To reduce the risks of human error, robbery, fraud or improper use of the installations. Including security in the responsibilities dotrabalho Convm that rules and sejamdocumentadas responsibilities of security where he will be appropriate, in accordance with the politics of security of informaoda organization. It agrees that they include any responsibilities general pelaimplementao or maintenance of the politics of security, as well as specific quaisquerresponsabilidades for the protection of determined active or pelaexecuo of determined processes or activities of security. Election and politics of staff Agree that verifications of control on equipepermanente are lead at the moment of the election of candidates. One sends regards that this includes the following one: ) the availability of references of satisfactory character, for example a professional and personal one; b) verification of the exactness and inteireza of the information of curriculumvitae of the candidate; c) confirmation of the eprofissionais academic qualifications; d) verification of the identity (passport or similar document).

Fusarium Planted

Given the large areas of FG 'Adelaide' begins to plant potatoes with early-stage and ends at the optimum. The farm is used protectant "Rovral Akvaflo" to protect potatoes from: Rhizoctonia, Fusarium, superficial necrosis, dry and wet rot. As an alternative to fungicide use "Maxim". At the time of planting potatoes is possible to use drugs "Prestige," "Masterpiece," "Tyrant," have fungicidal and insecticidal action. Tubers infected with highly mutually sort, so preparations, applied to the surface of tubers, is a kind of protective shield against harmful organisms. Planting crops are potato GRIMME GL 34 T, which has standard equipment. Potato trailers, 4 rows, 75 cm row spacing, 4 support the wheel, 3-ton capacity hopper parallelogram suspension openers, tractor capacity of more than 80 liters ..

The farm potatoes are planted in wide method followed by the formation of ridges, ie, in the process of landing is not formed a high crest, and subsequently formed the crest of the correct height. Tubers are planted at a depth of 6-8 cm from the top of the ridge, followed podgrebaniem soil. It is essential that the tubers were planted at the same level doposadochnoy the soil surface. It should be also take into account the fraction of the tubers are planted in large fractions of 2-3 cm deeper than the smaller ones. When planting the tubers too deep of a new crop are located deep, which makes mechanical harvesting. Properly conducted planting of potatoes, and predicts the amount of harvest and ripening time, as well as provide a convenient and quick cleaning. As a result, we have a beautiful, uniform potatoes, without mechanical damage and disease who gladly offer to sell yourself and eat. More information on FH "Adelaide

Wikipdia Learning

Its convergence is in disponibilizao of materials to be had access to quaquer moment, chat enters pupils together with tutor, frum of quarrel, research of opinion, glossaries, work with revision, Wiki (colaborativos documents in hipertexto), Scorm (content that can be compact in a transference archive), questionnaires, evaluation of the course (BELLONI, 1999). Another system of learning management (LMS) is the ITutor developed for the Kontis s.r.o. A platform e-learning developed especially for learning, sharing of knowledge and contribution. Thanks to its unified architecture, with a central infrastructure and database of integral security, it is a solution that allows it to all organize and to manage the learning process, including study in courses online, synchronous learning in virtual lessons and management of the traditional learning in classrooms. All these functionalities had been inserted in a unified graphical environment that allows to share the knowledge all and to include medias, management, planning and classification. The modular architecture allows the gradual integration of the functionalities (BELLONI, 1999). Figure 3 ITutor platform.

Its license must be acquired, currently, is a tool that more offers ficcionalidades since systems until support for videoconferncia. (KONTIS. Available in:. Acessado> in: 24 sets 2010). Another known independent project as the Wikiversidade, of English origin of the Wikipedia. It is a free form stops university education mediated by web, a great community of research. An exception on the Wikipdia as and kept for the world-wide community, is questionable sources (WALLES, 2006). The AdaptWeb Environment, developed for a project of research in the Institute of Computer science of the UFRGS and in the Department of Computation of the UEL, is come back toward the authorship and adaptativa presentation of you discipline in the distance integrant of courses of Education – EAD in the Web. The objective of this environment is to allow to the adequacy of tactics and forms of presentation of contents for pupils of different courses of graduation and with distinct styles of learning, making possible diverse forms of presentation of each content, adequate form to each course and to the individual preferences of the participant pupils.

Preliminary Analysis

The relationship between processes and asset is factor of success in the process of Security of the Information. The used methodology can be divided in three parts: recognition, analysis and classification. The recognition collects all the information on the asset, whereas the analysis makes possible the identification the existing relationship, and the classification, as proper name suggests, verifies and classifies the type of threat. The general objective is the recovery of damages, guaranteeing the protection of the assets front the determined threats. A threat in potential directly affects the assets that more are displayed and this exposition is measured by the vulnerability degree. In such a way, the analysis of risks verifies each functional area of the organization, having to be analyzed to determine the risk in potential and the impact caused for the threats. The Analysis of Risks is the verification of the critical points that can come to present critical impediments during the determined execution of one objective one.

Being able to pontuar the main methods of analysis of risks as preliminary analysis, analysis of the imperfection human being and the analysis of the imperfections and effect, and thus, bigger attention will be devotion the analysis of the imperfection human being, with the purpose to prevent the risks, as objective of this article. The Preliminary Analysis of Risk can be considered as a carried through study superficially during the phase of conception or initial development of a new project or system, having the purpose to determine the possible risks that will be able to occur in the operational phase. It can be interpreted, therefore, as a qualitative initial analysis, be developed in the phase of project, planning and development of any process, or any product, having excellent importance in the inquiry of new systems of high innovation and/or little known. This phase ' ' preliminar' ' it offers to the results of an experience analyzing the risks and verifying if the project, or product, contains some irregularity or deficiency.

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