Wenyuan Xu

Os materiais do el trodo desempenham um papel extremamente importante na constru o das comunica es interfaciais de electr es entre os locais activos das enzimas e a superf cie do el trodo, o que afecta significativamente o desempenho de uma c lula de biocombust vel enzim tico (EBFC). Neste caso, o carbono poroso defeituoso racionalmente concebido e preparado utilizando asfalto como precursor de baixo custo e elevado rendimento de carbono atrav s de um processo de pir lise catal tica f cil.

I materiali elettrodici svolgono un ruolo estremamente importante nella costruzione delle comunicazioni elettroniche interfacciali tra i siti attivi degli enzimi e la superficie dell'elettrodo, che influenzano in modo significativo le prestazioni di una cella enzimatica per biocarburanti (EBFC). In questa sede, il carbonio poroso difettoso stato progettato e preparato razionalmente utilizzando l'asfalto come precursore a basso costo e ad alta resa di carbonio attraverso un facile processo di pirolisi catalitica.

Les mat riaux d' lectrode jouent un r le extr mement important dans l' tablissement des communications lectroniques interfaciales entre les sites actifs des enzymes et la surface de l' lectrode, ce qui affecte consid rablement les performances d'une cellule de biocarburant enzymatique (EBFC). Ici, le carbone poreux d fectueux est con u et pr par de mani re rationnelle en utilisant l'asphalte comme pr curseur faible co t et haut rendement en carbone via un processus de pyrolyse catalytique facile.

Die Elektrodenmaterialien spielen eine u erst wichtige Rolle beim Aufbau der Grenzfl chenelektronenkommunikation zwischen den aktiven Stellen der Enzyme und der Elektrodenoberfl che, die die Leistung einer enzymatischen Biobrennstoffzelle (EBFC) erheblich beeinflussen. Hierin wird defekter por ser Kohlenstoff rational entworfen und mit Asphalt als kosteng nstige und hohe Kohlenstoffausbeute Vorl ufer ber eine einfache katalytische Pyrolyse-Prozess hergestellt.

The electrode materials play extremely important roles in building the interfacial electron communications between the active sites of enzymes and the electrode surface, which significantly affect the performance of an enzymatic biofuel cell (EBFC). Herein, defective porous carbon is rationally designed and prepared using asphalt as the low-cost and high carbon yield precursor via a facile catalytic pyrolysis process.

Securing Emerging Wireless Systems: Lower-layer Approaches aims to fill a growing need in the research community for a reference that describes the lower-layer approaches as a foundation towards secure and reliable wireless systems. Whereas most of the references typically address cryptographic attacks by using conventional "network security" approches for securing wireless systems, the proposed book will be differentiated from the rest of the market by its focus on non-cryptographic attacks that cannot easily be addressed by using traditional methods, and further by presenting a collection of defense mechanisms that operate at the lower-layers of the protocol stack and can defend wireless systems before the effects of attacks propagate up to higher-level applications and services. The book will focus on fundamental security problems that involve properties unique to wireless systems, such as the characteristics of radio propagation, or the location of communicating entities, or the properties of the medium access control layer. Specifically, the book provides detection mechanisms and highlights defense strategies that cope with threats to wireless localization infrastructure, attacks on wireless networks that exploit entity identity (i.e. spoofing attacks), jamming and radio interference that can undermine the availability of wireless communications, and privacy threats where an adversary seeks to infer spatial and temporal contextual information surrounding wireless communications. Additionally, the authors explore new paradigms of physical layer security for wireless systems, which can support authentication and confidentiality services by exploiting fading properties unique to wireless communications.

Securing Emerging Wireless Systems: Lower-layer Approaches aims to fill a growing need in the research community for a reference that describes the lower-layer approaches as a foundation towards secure and reliable wireless systems. Whereas most of the references typically address cryptographic attacks by using conventional "network security" approches for securing wireless systems, the proposed book will be differentiated from the rest of the market by its focus on non-cryptographic attacks that cannot easily be addressed by using traditional methods, and further by presenting a collection of defense mechanisms that operate at the lower-layers of the protocol stack and can defend wireless systems before the effects of attacks propagate up to higher-level applications and services. The book will focus on fundamental security problems that involve properties unique to wireless systems, such as the characteristics of radio propagation, or the location of communicating entities, or the properties of the medium access control layer. Specifically, the book provides detection mechanisms and highlights defense strategies that cope with threats to wireless localization infrastructure, attacks on wireless networks that exploit entity identity (i.e. spoofing attacks), jamming and radio interference that can undermine the availability of wireless communications, and privacy threats where an adversary seeks to infer spatial and temporal contextual information surrounding wireless communications. Additionally, the authors explore new paradigms of physical layer security for wireless systems, which can support authentication and confidentiality services by exploiting fading properties unique to wireless communications.