Electronic systems

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Susceptibility and hardening of electronic systems to fast transient threats: new challenges ahead

Susceptibility and hardening of electronic systems to fast transient threats: new challenges ahead

In order to modell the coupling of an incident field into electronic systems the identification of coupling path and their description via tranfer factor 4 or transfer function (Fig. 7) is a commonly used methodology. In case of small simplifyed or generic systems characterized by linear behav- ior and a limited number of possible copling paths the trans- fer function could be determined by measurements or nu- merical analysis. The extreme bandwith of UWB waveforms limits the application of this method. If the complexity of real systems and the non-linear behavior of systems of interest are taken into account, the application of exact determined trans- fer functions are limited on specific locations (e.g. connec- tors) and academic environment conditions. Currently norm based and statistical models are discussed as key elements for the prediction of the system response of an UWB interaction (Nitsch et al., 2003).
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A Comparitive Study of On-Chip Clock Generators Using a-IGZO TFTs for Flexible Electronic Systems

A Comparitive Study of On-Chip Clock Generators Using a-IGZO TFTs for Flexible Electronic Systems

ring oscillators (RO) using amorphous Indium Gallium Zinc Oxide (a-IGZO) thin-film transistors (TFTs) to imple- ment on-chip clock generator for flexible electronic systems. A five-stage RO has been implemented with different inverter topologies using IGZO TFTs, which includes Diode connected load, Capacitive bootstrapping (BS), Pseudo- CMOS and Pseudo-CMOS bootstrapping architectures. These topologies have been simulated using in-house IGZO TFT models under similar conditions using different power supplies (10 V, 15 V and 20 V) in cadence environment. Among all architechtures Capacitive bootstrapping RO has ensured highest frequency of operation in the order of MHz and an output swing of 82% of V DD . Whereas, Pseudo-
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a questão da usabilidade  Electronic Systems for Scientific Journals Publishing: the issue of usability :: Brapci ::

a questão da usabilidade Electronic Systems for Scientific Journals Publishing: the issue of usability :: Brapci ::

883 and allow you to perform modifications on ergonomics of the interfaces of the sections (submitting, editing, and evaluation) of electronic systems publishing of scientific journals, adapting them for the benefit of users and the purposes for which use. With respect to Information Science, studies on the usability of products are very important because they help in the study of interactions between people in institutions, enabling the planning and organization of information retrieval systems on behalf of their users and their needs.
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Dynamic power and frequency optimization in digital electronic systems

Dynamic power and frequency optimization in digital electronic systems

Porém, as soluções para os sensores de envelhecimento e de performance locais até aqui relatadas têm algumas desvantagens associadas, nomeadamente: (i) os circuitos[r]

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Rev. CEFAC  vol.18 número2

Rev. CEFAC vol.18 número2

between the groups regarding the report that EMR is more effective than the physical ones (Table 2, A8), including beneits resulting from their use. Moreover, the professionals perceived the existence of failures in the EMR system, whereas the students did not identify any problem. The EMR systems should be adjusted to the speciicities of each area. However, the infor- mation technology systems for healthcare are mostly developed for medical purposes, and when in use, they are adapted to the needs of other healthcare profes- sionals. For services involving multidisciplinary teams, it is necessary to ensure that the EMR systems meet the recording demands inherent to each speciality regarding the diversity of information generated, including formal recording in medical charts. In the speech-language service, for example, it is necessary to record and store vocal analysis (and its phonetic transcription), phonetic inventory, writing samples of the patient, among other data. However, the way how recording on paper is done is not always suitable for electronic systems.
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Evaluation of the use of electronic medical record systems in Brazilian intensive care units

Evaluation of the use of electronic medical record systems in Brazilian intensive care units

In regard to questions relating to quality improvements afforded by EMRSs, the majority (84.65%) of the participants believed that theirs had provided an improvement, and only 7.92% did not believe that the quality was superior to that of paper records. Comparing those who used electronic systems and those who did not, the electronic system users were more critical about quality. Among the physicians who did not use these tools, none believed that the quality could be inferior to that of paper records. In turn, 8.5% of EMRSs users considered them inferior to paper records (Table 2).
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Implementation of a Cloud-Based Electronic Medical Record to Reduce Gaps in the HIV Treatment Continuum in Rural Kenya.

Implementation of a Cloud-Based Electronic Medical Record to Reduce Gaps in the HIV Treatment Continuum in Rural Kenya.

The initial, one-off unit cost for each outpatient clinic was approximately USD$ 500, includ- ing the cost of the Google Chromebook, clinic set-up and training costs. Subsequent mainte- nance and monitoring costs amounted to around USD$ 50 per clinic per month. The initial unit cost for the central server, online framework and connection was approximately USD$ 6,000 and subsequent maintenance costs were around USD$ 200 per month. This cost remained the same regardless of the number of additional units (outpatient clinics) that are included in the network. In addition to these system costs, one EMR supervisor (cost of USD$ 500 per month) was recruited to monitor clinic activities and provide support to clinicians and one IT systems administrator (USD$ 500 per month) was recruited to oversee the server and network.
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Braz. J. Phys.  vol.29 número3

Braz. J. Phys. vol.29 número3

A trial wavefunction combining atomic and molecular character via an Eckart-type function times a corre- lated Gaussian ansatz has been proposed for the vari- ational description of 3-body Coulomb systems. We have demonstrated the accuracy of this function by per- forming a systematic comparison with that obtained through a generalized Hylleraas basis consisting of one term as well as 4-term and 10-term Hylleraas func- tions. When applied on di erent atomic and molec- ular species, their variational precision is shown to be dependent on the relative masses between the binding particle and the the other two connected via interparti- cle distance r
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Prehospital electronic patient care report systems: early experiences from emergency medical services agency leaders.

Prehospital electronic patient care report systems: early experiences from emergency medical services agency leaders.

Interviews were completed with the initial wave of volunteers (n = 13) recruited from the web-based survey and didactic session. The web-based survey was developed by the study authors and distributed to all NAEMSP members via electronic mail before the 2010 NAEMSP Annual Meeting. A copy of the survey is provided in Figure S1. It included general questions about the respondent and the EMS agency or agencies they represented as well as specific questions on whether or not they had e-PCR systems, barriers to adoption, and e-PCR system features. Respondents were also asked if they would be willing to discuss their experiences with e-PCR systems in more detail (this study) and were provided a link to e-mail the primary study author if interested. One of the study authors (CVG) presented a didactic session on e-PCR systems at the 2010 NAEMSP Annual Meeting and announced this study and recruited participants at the end of the presentation. We also used snowball sampling, in which study participants nominated other potential respondents, to complete the sample. [20] Since none of the identified EMS agencies were able to exchange electronic data with hospital electronic medical records (there are very few organizations currently with this functionality), [6] we included a hospital-based emergency physician to represent an organization with this capability. We used a purposeful sampling approach to ensure a balance of geographic locations (Northeast, Midwest, South, West, and Canada) as well as agencies using e-PCR systems and not using e-PCR systems. [20] Data collection and analysis were conducted simultaneously; we continued to recruit participants until thematic saturation was achieved, or no new ideas surfaced from subsequent interviews. [22,23] A total of 23 EMS leaders, representing 20 EMS agencies, participated in the study. Three participants were randomly selected for $50 gift certificates for their participation in this study. Ethics Statement
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Evaluation of the use of electronic medical record systems in Brazilian intensive care units

Evaluation of the use of electronic medical record systems in Brazilian intensive care units

do uso de sistemas de prontuário eletrô- nico nas unidades de terapia intensiva brasileiras, bem como a percepção dos médicos intensivistas em relação à con- tribuição dos sistemas de [r]

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Theoretical study of molecular and electronic structures of 5(1) knot systems: two-layered ONIOM calculations

Theoretical study of molecular and electronic structures of 5(1) knot systems: two-layered ONIOM calculations

Theoretical studies of the electronic structure of large molecules are already feasible. For example, it is possible to describe the molecular system in regions of greater or lesser interest. The effect of a given property and/or dependence effects obtained by calculations at the required level is observed in the description of this property. Thus, one can describe the behavior of real molecules from calculations performed at different levels in different regions. This is the basic concept of the approach employed by ONIOM. 25

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In Vivo accuracy of two electronic foramen locators based on different operation systems

In Vivo accuracy of two electronic foramen locators based on different operation systems

The aim of this study was to compare in vivo the accuracy of two electronic foramen locators (EFLs) based on different operation systems - Root ZX and Propex II. Ten healthy adult patients needing premolar extractions due to orthodontic reasons participated in the study, providing a sample of 17 noncarious, non-restored, vital teeth (n= 24 canals). After coronal access preparation and cervical preflaring and prior to tooth extraction, the root canal length was measured alternating the two EFLs. All measurements were performed with K-files well fitted to the canal diameter at the level that each EFL indicated the apical foramen in their display (APEX or 0.0). The last K-file were fixed in place with cyanoacrylate, the tooth was extracted, and the apical 4 mm of each root were resected to measure the distance between the file tip and the apical foramen. The mean errors based on the absolute values of discrepancies were 0.30 ± 0.29 mm (Root ZX) and 0.32 ± 0.27 mm (Propex II). Analysis by the Wilcoxon test for paired samples showed no statistically significant differences between the electronic canal measurements performed with the EFLs (p=0.587). The apical foramen was accurately located in 75% (Root ZX) and 66.7% (Propex II) of the cases, considering a ±0.5 mm error margin, with no statistically significant difference by the chi-square test. Despite having different measurement mechanisms, both EFLs were capable of locating the apical foramen with high accuracy in vivo. Under the tested clinical conditions, Root ZX and Propex II displayed similar results.
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Remote electronic voting: studying and improving Helios

Remote electronic voting: studying and improving Helios

Finally, the IACR committee stressed out some differences between how they face an election and how usually the public-sector elections occur. Re- garding the resistance to coercion and vote-selling properties (see Subsection 2.3.1), even though they are crucial aspects for the public-sector elections, to preserve fairness and democracy, for small companies and private elections a weaker property is required. Nevertheless, a special attention to this problem is needed, as upheld in the previous receipt-freeness bullet. Another differ- ence when comparing with public-sector elections, is the absence of paper trail, which is normally used to be examined if the need appears. For the commit- tee, an electronic version is enough. Concerning the robustness of the system, it was not demanded a completely full proof solution (for instance, the DoS attack mentioned above), but instead a flexible system that may be able to extend a voting deadline for some time if these kind of attacks happen.
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Stuctural and electronic properties of anatase TiO2 thin films: periodic B3LYP-D* calculations in 2D systems.

Stuctural and electronic properties of anatase TiO2 thin films: periodic B3LYP-D* calculations in 2D systems.

Nesse sentido, o presente trabalho tem como objetivos determinar as energias de superfície do TiO 2 anatase por meio de cálculos DFT utilizando modelos periódicos bidimensionais ( sla[r]

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Manutenção Paperless

Manutenção Paperless

Múltiplos estudos foram conduzidos sobre os Electronic Flight Bags ao longo dos últimos anos por investigadores e outros profissionais que se focaram também na partilha de conhecimento sobre esta nova tecnologia. Porém, devido ao facto de esta nova plataforma digital, o Electronic Logbook, estar intrínseca à operação das companhias, questões de confidencialidade foram algo impeditivas na faculdade de algumas informações. O desenvolvimento de alguns subcapítulos ficaram assim algo limitados, nomeadamente os capítulos que abordaram o aparecimento do Electronic Flight Bag e do Electronic Logbook. Foi sempre objetivo entrar em contacto com empresas que, de alguma forma, foram pioneiras no desenvolvimento destas novas plataformas, mas, em suma, questões inerentes à confidencialidade foram impeditivas para a partilha de conhecimento.
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Nigeria SMEs P articipation in  E lectronic  E conomy:  Problems and the  W ay  F orward

Nigeria SMEs P articipation in E lectronic E conomy: Problems and the W ay F orward

In conclusion, for Nigeria’s electronic/Internet economy to blossom, government must recognize that there is a direct relationship between a highly digitalized economy and the prosperity of that economy. Therefore, there is need for her to assist the SMEs with the provision of basic functional infrastructures, the inadequacy of which has constituted a drain channel for the investible funds of SMEs.They have to make provision for all these from the loan/funds hitherto acquired from banks. If these basic amenities were readily available, SMEs would divest such funds to more productive operations. Government could also assist by establishing a well funded National Credit Guarantee Fund that will act as buffer for credit facilities from banks and other financial institutions over and above the equity provided under SMEs.
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Rev. direito GV  vol.5 número2

Rev. direito GV vol.5 número2

Well, if, on one side, the contract is coupled to the legal system and the economic system, on the other, it likewise couples these systems to cyber systems. The complex interaction arising as a result thereof produces disturbances in both systems. Said disturbances sometimes generate (in the case of the Law system) problems in view of which the legal doctrine (still) did not find a solution. In spite of this, according to Luhmann, every system necessarily conforms to its environment, as, otherwise, it would not be able to exist. “Within the space of the possibilities available, it performs its operations with absolute autonomy. The environment may impact the system only when it pro- duces disturbances. The disturbance is a form of perception of the system itself ” (LUHMANN, 2002, p. 510-511).
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Braz. J. Geol.  vol.45 número2

Braz. J. Geol. vol.45 número2

he Brazilian Journal of Geology (BJG) is just starting to migrate from the Open Journal Systems (OJS) to the ScholarOne editorial system, as part of the Scientiic Electronic Library Onl[r]

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Raman spectroscopy of graphene:: probing phonons, electrons and electron-phonon interactions.

Raman spectroscopy of graphene:: probing phonons, electrons and electron-phonon interactions.

This chapter presents a group theory analysis for electrons and phonons in monolayer, bilayer and trilayer graphene, extending for N-layers depending if N is even or odd, all with Bernal (AB) stacking. The selection rules for electron- radiation interaction within the dipole approximation and for electron scattering by phonons are derived. With these selection rules, we discuss the double-resonance Raman (DRR) scattering process, which has been widely used to characterize the number of layers [38, 39, 40] and to probe their electronic and vibrational properties [46, 47]. Finally, we also discuss the differences when mono and bilayer graphene are exposed to external electrical fields, giving insight on the gap opening in the biased bilayer graphene [21, 102, 103, 20, 22] and different selection rules for the electron-phonon scattering (EPS) process.
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