Materials Literature
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We report a new shape of subwavelength triangular spiral ring resonator which is designed to operate in terahertz regime. The metamaterial split ring resonator unit cell is constructed with the help of a single loop of conducting wire strip printed over a very thin high permittivity silicon dielectric substrate. The e…
Memristor is an emerging topic that has experienced a great development in the last few years. The concept of memristor was introduced as the fourth fundamental circuit element by Prof. Chua in the year 1971. A memristor could be one kind of electronic devices of novel nano-scale structures, which could be used in man…
The subject of study is a Single Small Outline (SSO) electronic package which is a type of magnetic Hall Effect sensor. This package has two main parts: IC and capacitor; both encapsulated by mold compound. This paper aims to investigate chipping of mold compound at the capacitor and provide alternatives to prevent ch…
In this brief, a new low-voltage CMOS circuit to produce current-mode exponential characteristics is proposed. MOSFET transistors in weak-inversion region and translinear principle for the temperature cancellation were used. The functionality of the proposed design confirmed with 0.35 $\mu{\rm m}$ CMOS process technol…
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Recently, a noise suppression sheet (NSS), which is composite of dielectric and magnetic materials, is widely used. And thinner NSS is demanded due to the narrow spaces inside electronic devices. This paper examines a method to reduce the thickness of NSS by using a periodic metal film. NSS with the periodic metal fil…
A terahertz (THz) absorber using asymmetric split ring resonators (ASRs) was designed, fabricated and characterized. As the symmetry of a split ring resonator (SRR) is broken, the trapped mode resonance is excited, which shows higher absorption and Q factor than the dipole resonance of the symmetric resonator. By disp…
In the present work, the finite element formulation for the investigation of the effects of a localized interfacial degeneration on the dynamic behavior of the [90°/0°] laminated composite plate employing the state-space technique is performed. The stiffness of the laminate is determined by assembling the stiffnesses…
The manufacturing technology of band cotton is very delicate and depends to choice of certain parameters such as torsion of warp yarn. The fabric elasticity is achieved without the use of any elastic material, chemical expansion, artificial or synthetic and it’s capable of creating pressures useful for therapeutic tre…
We study the influence of ripple waves originating from the electromechanical\neffects on spin relaxation caused by electromagnetic fields in armchair and\nzigzag graphene nanoribbons (GNRs). By utilizing analytical expressions\nsupported by numerical simulations, we show that it is possible to tune the\nspin flip beh…
In this thesis we investigate the response of plasmonic systems in a quantum optics setting. This work can be grouped into two sub-investigations, the study of macroscopic and microscopic responses. The narrative of the thesis comprises three principal parts. First, we give an in-depth review of the field of quantum p…
Ο σκοπός της παρούσας μελέτης είναι ο ποσοτικός προσδιορισμός ενός νέου αναστολέα των μεταλλοπρωτεινασών, τον ΤΙΜΡ4, στο υδατοειδές υγρό ασθενών με πρωτοπαθές γλαύκωμα ανοικτής γωνίας, με σύνδρομο ψευδοαποφολίδωσης και με ψευδοαποφολιδωτικό γλαύκωμα και ο υπολογισμός των αναλογιών του με άλλες μεταλλοπρωτεινάσες(ΜΜΡ)…
One- and two-dimensional carbon nanostructures with sp2 hybridization of carbon atoms (single walled carbon nanotubes and graphene) are promising materials in future electronic and spintronics devices due to specific character of their electronic structure. In this paper we present a comparative study of graphene and…
Στην παρούσα διδακτορική διατριβή ασχοληθήκαμε με την εξακρίβωση του μηχανισμού εναπόθεσης του καταλυτικά δραστικού στοιχείου βαναδίου στην επιφάνεια της τιτάνιας, που λαμβάνει χώρα στο στάδιο της ισορροπίας της μεθόδου “Εναπόθεση Ισορροπίας-Διήθηση”, καθώς και της τοπικής δομής των σχηματιζόμενων επιφανειακών ειδών,…
This thesis reports the synthesis a series of novel dithiafulvenyl (DTF) compounds, and their characterization. This entails an investigation into their unique electronic properties, as well as their response to both chemical and electrochemical oxidation. This work expands upon previous work within the Zhao group to…
The ability to keep mechanical equipment and structures running efficiently for long periods and in aggressive service conditions has generated great economic and industrial interest. One of the main aspects that influence the deterioration of materials is degradation by corrosion to which the materials are exposed. T…
The information in this document is the property of Rolls-Royce Corporation and may not be copied or communicated to a third party, or used for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce Corporation. This information is given in good faith based upon the lat…
In the current era, there are high demand to find alternative green and renewable, biodegradable products in several industrial and academic sectors. From the literature, natural fibres found to be a good and promising candidate to replace the synthetic fibres for mechanical and civil engineering applications. However…
将青霉素酰化酶（PGA）固定于饱和磁化率为6.5 emu/g、富含环氧基的大孔磁性聚合物微球（GM）上,所得磁性固定化酶PGA/GM用于在水相中催化（R,S）-2-氯苯甘氨酸甲酯（2-CGM）发生不对称水解反应;在20℃下反应48 h,所得（S）-2-CGM和（R）-2-氯苯甘氨酸的对映体过量值分别为98.0%和58.8%,底物总转化率为62.5%。PGA经GM固定化后,催化（R,S）-2-CGM水解反应的活性和对映体选择性均有显著提高。PGA/GM具有较强的磁响应性,在外加磁场的作用下能进行快速分离和洗涤,机械损失小;经6次循环使用,其活性和对映体选择性未出现大幅衰减。
\n\t\t\t\t\tHollow mesoporous silica nanoparticles (HMSNs) were synthesized via a new strategy. HMSNs have a high drug loading, controlled release behaviour, and specifically targeting when bioconjugated with Epidermal Growth Factor. The promising in vitro cell tests have revealed the great potential of the HMSNs to b…