a room-temperature operated hydrogen leak sensor

Dimensions of sensory quality: a critique

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Effect of sensory education on school children’s food perception: A 2-yearfollow-up study

... IsoPaahto, Vaasan and Vaasan Oy); in the third follow-up two premium breads, garlicky cheese ciabatta (Artesaani, Prim-ula Oy) and grainy rye bread (Artesaani, Primula Oy); and in thelast ... fol-low-up regular rye bread (Ruispuikula, Fazer Bakeries) and a sweetloaf (Setsuuri, Fazer Bakeries); in the second follow-up dark loaf(Maalahden limppu, Malax Limpan Ltd.) and grainy wheat toast(Jyväinen ... foods. A score equal to1 meant that a child wasequally willing to taste the unfamiliar and familiar foods. For ﬁveunfamiliar and seven familiar foods, the range of scores was 0–2.3 and for...

Performance optimization of a PEM hydrogen-oxygen fuel cell

... engines. Renewable Energy 2004;29(2):179-195 [6] K.S. Dhathathreyan, P. Sridhar, G. Sasikumar, K.K. Ghosh, G. Velayutham, N. Rajalakshmi, C.K. Subramaniam, M. Raja and K. Ramya, Development ... platinum in low catalyst loading electrodes to attain high power densities in SPE fuel cells. J. Electroanal. Chem. 1998;251(2):275-295 [15] Sampath Yerramalla, Asad Davari, Ali Feliachi and ... semi-empirical coefficients for calculation of activation overpotential References [1] T. Susai, M.Kaneko, K. Nakato, T. Isono, A. Hamada and Y. Miyake, Optimization of proton membranes and the...

A typical small-scale chlorine leak and dispersion simulation in industrial facilities

... Similar studies of potential HAZMAT releases concur with this scale of disaster from chlorine leaks. The scenario of a major chlorine leak caused by a terrorist attack on a rail car passing ... to any leaders at all levels and working staff. (5) Any plants must strengthen safety education and vocational and technical training. Special operation workers also must adhere to certificate ... treatment and so on. This paper adopted a CFD method to study a small-scale dispersion of chlorine in a factory. From the simulation result and accident causal analysis for a typical small-scale...

Sensor-based navigation of a mobile robot in an indoor environment

... theexperimental data without having recourse to any empirical approach.In the case of a partially known environment, a hybrid method is used in order to exploit the advantages of global and localnavigation ... ﬁxed featurescan be drawn, but numerous undrawn or displaced lo-cal obstacles can also been encountered by the robot.So a natural way to obtain an efﬁcient and safe nav-igation in such an environment ... sub-goals develop a secondstrategy S2. As a matter of fact, the idea is to antic-ipate in order to avoid a potential blocking situationrather than to discover it and subsequently react. So,an...

Tài liệu A WIRELESS SENSOR NETWORK AIR POLLUTION MONITORING SYSTEM pdf

... Initiator: The java DriverManager allows for a method to open a database, providing it the name of the database, user name and password as parameters. So, this component just has to make a call to this ... provides raw measurements of air pollutant concentrations, which can then be analysed and interpreted. This information can then be applied in many ways. Analysis of monitoring data allows us to assess ... civilian application areas for commercial and industrial use, including environment and habitat monitoring, healthcare applications, home automation, nuclear reactor controlling, fire detection and...

Tài liệu Báo cáo khoa học: Cleavage of nonphenolic b-1 diarylpropane lignin model dimers by manganese peroxidase from Phanerochaete chrysosporium Evidence for a hydrogen abstraction mechanism docx

... extracted and prepared for analysis as described above.Chromatography and mass spectrometryGC-MS was performed at 70 eV on a Finnigan 4500 massspectrometer using a Galaxy data system and ﬁtted ... produce a carbon-centered radical, or anelectron from the aromatic ring to produce an aryl cationradical intermediate [29,30]. The C1-centered radical,resulting from a- hydrogen abstraction, has ... [28]. Alternatively, a radical generated at C2would add to O2and the resulting peroxy radical couldabstract a hydrogen atom to form an unstable hydroper-oxide. The latter would undergo C a –Cbcleavage...

Wireless Sensor Network Security: A Survey potx

... attacks canbe prevented.• Change Data Traffic De-patterning the data transmissions can pro-tect against traffic analysis. For example, inserting some bogus datacan intensively change the traffic pattern ... most notably as denial ofservice attacks, but also through traffic analysis, privacy violation, physicalattacks, and so on. Denial of service attacks on wireless sensor networks canrange from ... defending againstattacks on sensor privacy, intrusion detection, secure data aggregation, de-fending against physical attacks, and trust management.6.1 Key EstablishmentOne security aspect that...

A Survey on Network Security and Attack Defense Mechanism For Wireless Sensor Networks pdf

... the creation of a false stream in a WSN.  Mote-class versus laptop-class attacks: In mote-class (sensor- class) attacks, an adversary attacks a WSN by using a few nodes with similar capabilities ... E. Availability Sensor nodes may run out of battery power due to excess computation or communication and become unavailable. It may happen that an attacker may jam communication to make sensor( s) ... attack an attacker with a high radio transmission range (termed as a laptop-class attacker) and processing power sends HELLO packets to a number of sensor nodes which are dispersed in a large...

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