A new standard security policy language

The rapid increase and complication of threats on organizations' assets makes developing organizational security policies a pressing need. Organizations should develop policies that regulate and control the access of their assets. Security policies define the guidelines that can be used to determine the security measures to be employed in an organization to keep assets secured. Security officers used to write policies in their natural language, resulting in less readable, less maintainable, and ambiguous policy statements. Consequently, the possibility of developing automation systems for policy management was very low. With the increase of business, organizations developed several security policies to control different assets, systems, and data. These policies are often scattered over different environments and different models. That makes them difficult to be tracked for implementation and updates.     

A UNIFIED THREE POINT APPROXIMATING SUBDIVISION SCHEME

In this paper, we propose a three point approximating subdivision scheme, with three shape parameters, that unifies three different existing three point approximating schemes. Some sufficient conditions for subdivision curve C<'0> to C<'3> continuity and conver- gence of the scheme for generating tensor product surfaces for certain ranges of parameters by using Laurent polynomial method are discussed.The systems of curve and surface de- sign based on our scheme have been developed successfully in garment CAD especially for clothes modelling.     

Synthesis of novel hollow microflowers (NHMF) of Nb3O7F,their optical and hydrogen storage properties

A two step, facile surfactant free hydrothermal route was adopted to synthesize Nb₃O₇F novel hollow microflowers (NHMF). Time dependent experiments were performed which suggested Nb₃O₇F-NHMF were formed due to Ostwald-ripening process. Raman spectroscopy was conducted to understand different vibrational modes of Nb₃O₇F-NHMF. Its characteristic band at 692 cm⁻¹ was observed which is associated to NbO₆ octahedron sharing. The bandgap of 3.2 eV was calculated by using UV-VIS-NIR absorption spectrum. Considering importance of layered structures in energy storage applications, hydrogen storage ability of Nb₃O₇F-NHMF were measured for the first time. The maximum values of hydrogen absorption for Nb₃O₇F-NHMF at 373 K and 473 K were 0.789 wt.% and 1.08 wt.%, respectively. The hydrogen storage measurements revealed the potential of Nb₃O₇F-NHMF as prospective material for energy storage applications.     

单晶金红石型TiO_2纳米棒的湿法合成(英文)

用TiO2粉末、NaOH和蒸馏水为原料合成金红石型TiO2纳米棒。XRD和FESEM分析表明,制备的样品为单晶且无杂质,其平均粒径约为40 nm。当样品于600°C退火2 h后,FESEM观察发现生成了TiO2纳米棒。XRD分析表明纳米棒为单晶。纳米棒表面光滑,其长约为1μm,直径约为80 nm。紫外和拉曼光谱研究表明,所制备样品的能带间隙为3.40 eV。     

Performance Evaluation of Topological Infrastructure in Internet-of-Things-Enabled Serious Games

Serious games have recently enticed many researchers due to their wide range of capabilities. A serious game is a mean of gaming for a serious job such as healthcare, education, and entertainment purposes. With the advancement in the Internet of Things, new research directions are paving the way in serious games. However, the internet connectivity of players in Internet-of-things-enabled serious games is a matter of concern and has been worth investigating. Different studies on topologies, frameworks, and architecture of communication technologies are conducted to integrate them with serious games on machine and network levels. However, the Internet of things, whose core requirement is the provision of connectivity on the application layer, has different challenges for more dynamic applications such as serious games. The performance of Internet-of-things-enabled serious games depends on the type of infrastructure (wired, wireless) network and Mobile Ad-hoc Network (MANET) and is subtly different from one type of network to another. This paper investigates the connectivity challenges in the Internet-of-things-enabled serious games using the mentioned infrastructure and identifies the core requirements for these games. It also aims to evaluate various parameters such as reliability, scalability, response time, to name a few, with varying infrastructure and network types. Results highlight the preliminary infrastructure finding and highlight the core setup for which the games are deployed. Moreover, this work will be a steppingstone for architecting the connectivity in serious games in a typical smart space with many infrastructures such as wired networks, wireless networks, and MANET.     

Influence of material and process parameters on microstructure evolution during the fabrication of carbon–carbon composites: a review

Journal of Materials Science - Carbon–carbon composites (CCCs) are a unique form of carbon fiber-reinforced materials that exhibit excellent thermomechanical properties under extreme...     

Analysis of a Two‐Layer Nozzle‐and‐Diffuser Electroosmotic Micromixer

An electroosmotic micromixer with two‐layer microchannels of a nozzle‐and‐diffuser structure was proposed. Numerical analysis of the flow and mixing was performed using the three‐dimensional Poisson‐Boltzmann and Navier‐Stokes equations with a diffusion‐convection model for the species concentration. A parametric analysis of the microchannels was performed using three geometric parameters, i.e., length of the nozzle section, length of the diffusion section, and width of the nozzle end, to investigate the impact of each parameter on the mixing performance, which was quantified by a quantitative measure based on the mass variance. The numerical results were used to improve the design of the proposed micromixer, leading to a far better mixing performance with a much shorter channel length compared to an existing electroosmotic micromixer.     

Exploiting the concept level feature for enhanced name entity recognition in Chinese EMRs

The Journal of Supercomputing - The accumulation and explosive growth of the electronic medical records (EMRs) make the name entity recognition (NER) technologies become critical for the meaningful...     

Beyond Counterarguing: Simple Elaboration,Complex Integration,and Counterelaboration in Response to Variations in Narrative Focus and Sidedness

This study attempts to advance theorizing about narrative persuasion by explicating types of thoughts, beyond counterarguing, generated in response to a short narrative with persuasive intent. We examine responses to four types of narratives (focus: individual vs. community; by sidedness: one‐ vs. two‐sided) about causes and solutions for obesity in an attempt to increase support for policies to address the issue. Using a randomized experiment (n = 245), we show that narrative focus and sidedness interact to produce different patterns of thoughts, attributions, and policy support. Simple elaboration, counterelaboration, and counterarguing predicted causal attributions and policy support, but only simple elaboration mediated message effects on intended persuasive outcomes. We conclude by discussing the study's contributions to communication theory and practice.     

Man Overboard Detection System Using IoT for Navigation Model

Security measures and contingency plans have been established in order to ensure human safety especially in the floating elements like ferry, ro-ro, catamaran, frigate, yacht that are the vehicles services for the purpose of logistic and passenger transport. In this paper, all processes in the event of Man overboard (MOB)are initiated for smart transportation. In MOB the falling person is totally dependent on the person who first saw the falling person. The main objective of this paper is to develop a solution to this significant problem. If a staff member or a passenger does not see the fall into the sea, undesirable situations such as disappearance, injury and death can occur during the period until the absence of the fallen person is noticed. In this paper, a comprehensive and improved solution is provided in terms of personnel and passenger security especially in all the floating elements, in which human resources are intensively involved like passengers, freight, logistics, fishing, business, yacht, leisure and naval vessels. In this case, if the ship's personnel or passengers fall into the sea in any way, it detected the fallen person into the sea by the sensors in the portable emergency device, which each person will carry. The warning system is activated via the in-ship automation system to which the information is transmitted by wireless communication. Thus, the case of MOB will be determined quickly. Internet of things (IoT) has a key role in identifying the location and information of the person falling into the sea through sensors, radio frequency, GPS and connected devices. Simultaneously, the alarm system on board will be activated and MOB flag (Oscar) will automatically be opened. This paper enables the Search and rescue (SAR) operations to be initiated and accelerated without losing time through decision-making process.