On the dynamics,existence of chaos,control and synchronization of a novel complex chaotic system

In this paper, the authors have studied the dynamics of a novel complex chaotic system with fractional order derivative and found the existence of chaos. The novel complex system is simulated for integer as well as fractional orders which shows some unusual phenomena. The main contribution of this effort is an implementation of the Largest Lyapunov Exponent (LLE) criteria based on Wolf’s algorithm. The conditions for chaos control based on the fractional Routh–Hurwitz stability conditions and feedback control are given. Also synchronization between a fractional order novel chaotic system and a controlled fractional order novel system using the modified adaptive projective synchronization method for different scaling matrices has been obtained. Numerical simulation results are carried out using the Adams–Bashforth–Moulton method.     

10MW串级脉冲发电机的理论、设计、实验豚应用研究

脉冲发电机具有小型、机动、灵活、可靠、寿命长等特点,作为高功率固体激光器和加速器电源是一新的技术路线,比较了各种类型脉冲电源的性能指标,解决了旋转磁通压缩和串级原理,提出了串级脉冲发电机的自激,偏极与双机同壳概念,给出电机的设计公式,10MW串级脉冲发电机的设计实验在强激光与粒子束领域中的潜在应用。     

Recent Developments in Oxide-Based Ionic Conductors: Bulk Materials,Nanoionics, and Their Memory Applications

Oxide-based ionic conductors have attracted tremendous research interests due to their wide applications in energy storage and conversion devices, such as photovoltaics, fuel cells, batteries, and supercapacitors. Extensive efforts have been undertaken to improve the ionic conductivity of existing materials along with the development of novel conductors. The recent advance of ionic conductors in nanoscale demonstrated their ultra–high ionic conductivity for the promising applications in energy sector. In this work, recent progresses of conventional oxide conductors and the development of novel conductors are reviewed in details. The strategy to exploit the nanoionics of enhancing the ionic conductivity is discussed. Furthermore, the novel applications of nanoionics for the resistive switching memories are summarized.     

Analysis,synchronization and circuit design of a novel butterfly attractor

This research paper introduces a novel three-dimensional autonomous system, whose dynamics support periodic and chaotic butterfly attractors as certain parameters vary. A special case of this system, exhibiting reflectional symmetry, is amenable to analytical and numerical analysis. Qualitative properties of the new chaotic system are discussed in detail. Adaptive control laws are derived to achieve global chaotic synchronization of the new chaotic system with unknown parameters. Furthermore, a novel electronic circuit realization of the new chaotic system is presented, examined and realized using Orcad-PSpice program and physical components. The proposed novel butterfly chaotic attractor is very useful for the deliberate generation of chaos in applications.     

Design, Fabrication and Test of a Soft X-Ray Even-Order Transmission Grating

Most transmission gratings in the x-ray region work with their first orders and dispersion is limited by the line density achievable with current fabrication technology. We present a novel design of a two-dimensional x-ray transmission grating. The grating works with higher dispersion using its second orders, and the influence from first and third orders can be suppressed. A grating according to the novel design is fabricated and its diffraction performance is tested in comparison with a traditional x-ray transmission grating with the same line density. The novel grating could be especially useful when high dispersion is desired while the fabrication of high-density gratings becomes more difficult.     

Potential impact of ultrasound,pulsed electric field,high-pressure processing and microfludization against thermal treatments preservation regarding sugarcane juice (Saccharum officinarum)

Sugarcane juice (Saccharum officinarum) is a proven nutritious beverage with high levels of antioxidants, polyphenols, and other beneficial nutrients. It has recently gained consumer interest due to its high nutritional profile and alkaline nature. Still, high polyphenolic and sugar content start the fermentation in juice, resulting in dark coloration. Lately, some novel techniques have been introduced to extend shelf life and improve the nutritional value of sugarcane juice. The introduction of such processing technologies is beneficial over conventional processes and essential for producing chemical-free, high-quality, fresh juices. The synergistic impact of these novel technologies is also advantageous for preserving sugarcane juice. In literature, novel thermal, non-thermal and hurdle technologies have been executed to preserve sugarcane juice. These technologies include high hydrostatic pressure (HHP), ultrasound (US), pulsed electric field (PEF), ultraviolet irradiation (UV), ohmic heating (OH), microwave (MW), microfludization and ozone treatment. This review manifests the impact of novel thermal, non-thermal, and synergistic technologies on sugarcane juice processing and preservation characteristics. Non-thermal techniques have been successfully proved effective and showed better results than novel thermal treatments. Because they reduced microbial load and retained nutritional content, while thermal treatments degraded nutrients and flavor of sugarcane juice. Among non-thermal treatments, HHP is the most efficient technique for the preservation of sugarcane juice while OH is preferable in thermal techniques due to less nutritional loss.     

Location of the collapsed phase for two-dimensional,directed, interacting polymers

By mapping a model for a directed polymer onto a novel polygon problem, we give a physically appealing proof for the location of the boundary of the collapsed phase in phase space, applicable also when interactions with a surface are included.     

Smolder waves, smolder spots, and the genesis of tribrachial structures in smolder combustion

We examine the evolution of reverse smolder waves with edges, motivated by the existing literature on edge-flames. An advancing smolder edge proves to be of little interest, and a well-defined invariant structure does not emerge following initial transients. A retreating smolder edge also lacks invariant structure, but retreats at a reasonably well-defined speed and can lead to novel structures and novel evolutions. Thus, a transient propagating smolder spot can be generated; and a tribrachial structure evolves from this spot with a tail that has the form of a forward smolder wave, and two leading branches, fuel-lean and fuel-rich reverse smolder waves. High temperatures and high reaction rates accompany these evolutions, and it is noted that this could lead to flaming (gas-phase) combustion.     

Thermo-optical SEED devices: External control of nonlinearity,bistability and switching behaviour

We discuss novel fundamental properties of thermo-optical SEED devices and present experimental results performed on Si Schottky, diodes where the optoelectronically generated electrical power leads to optical bistability and photonic switching. In particular, it is shown that the external resistance yields an additional nonlinearity which leads to novel properties which result from the external control of the multistable and switching behaviour. As a result, bistable characteristics with negligible hysteresis widths but high contrast ratios, a novel multistability and tunable differential gain can be achieved. Additionally, the temperature range and also the total dissipated power which are necessary for switching the device can significantly be reduced when using the external resistance.     

Blocked-micropores,surface functionalized,bio-compatible and silica-coated iron oxide nanocomposites as advanced MRI contrast agent

Quasi-critical fluctuations occur close to critical points or close to continuous phase transitions. In three-dimensional systems, precision tuning is required to access the fluctuation regime. Lowering the dimensionality enhances the parameter space for quasi-critical fluctuations considerably. This enables one to make use of novel properties emerging in fluctuating systems, such as giant susceptibilities, Casimir forces or novel quasi-particle interactions. Examples are discussed ranging from simple metal–adsorbate systems to unconventional superconductivity in iron-based superconductors.     

Design, Synthesis and Photostability of Novel 1,8-naphthalimide PAMAM Light-harvesting Dendrons

This paper reports on the divergent synthesis, photophysical properties and photodegradation of novel PAMAM dendrons, core and peripherally functionalized with 1,8-naphthalimide fluorophores. The novel compounds were configured as light-harvesting antennae where the system surface is labeled with blue emitting 4-allyloxy-1,8-naphthalimide ??donor?? fluorophores capable of absorbing light and efficiently transferring the energy to a single yellow-green emitting 4-alkylamino-1,8-naphthalimide ??acceptor?? dye. The focal 1,8-naphthalimide fluorophores in the antennae were modified with a HALS fragment (2,2,6,6-tetramethylpiperidine or 1,2,2,6,6-pentamethylpiperidine) with a view to improve their photostability. Novel light-harvesting systems showed highly efficient energy transfer, depending on the volume of the core substituent. Due to the HALS fragments the chromophoric system of the novel antennae showed higher photostability, while the photostability of the PAMAM scaffold was found to be lower.     

Electrochemical determination of captopril in the presence of acetaminophen,tryptophan, folic acid,and l-cysteine at the surface of modified carbon nanotube paste electrode

Ionics - A novel carbon paste electrode (CPE) modified with 2,2′-[1,7–heptanediylbis(nitrilomethylidene)]-bis(4-hydroxyphenol) (DHB) and carbon nanotubes (CNTs) was prepared. At first,...     

Synthesis,antifungal activity and 3D-QSAR study of novel acyl thiourea compounds containing gem-dimethylcyclopropane ring

Molecular Diversity - A series of novel acyl thiourea compounds containing gem-dimethylcyclopropane ring were designed and synthesized by multi-step reactions in search of novel antifungal...     

Synthesis,formation mechanism and electric property of hollow InP nanospheres

The present work reports on novel four-layer thermally driven piezoresistive cantilevers implemented in one- and two-dimensional arrays for parallel proximity scanning. There, the heater (metallic meander), the piezoresistive deflection sensor, and the metal actuation film with significantly higher thermal expansion coefficient make up separate layers. Actuation efficiency and cross-talk of the novel cantilever design are studied and compared with two recent designs: thin metallic film and ion-implanted heater. The novel actuator, integrated on a 240 μm long and 3 μm thick silicon cantilever and supplied by V _dc=1 V enables deflections up to 5 μm of the AFM-tip with an actuation efficiency of about 170 nm/mW and suppressed cross-talk between actuator and sensor.     

Vertical Blow-up in a Low-Current,Stored, Laser-Cooled Ion Beam

Hyperfine Interactions - Using a novel technique for real-time transverse beam profile diagnostics of a stored ion beam, we have observed the transverse size of a stored, laser-cooled ion beam....     

Pulsating, creeping, and erupting solitons in dissipative systems

We present three novel pulsating solutions of the cubic-quintic complex Ginzburg-Landau equation. They describe some complicated pulsating behavior of solitons in dissipative systems. We study their main features and the regions of parameter space where they exist.     

Novel fused 1,2,3-triazolo-benzodiazepine derivatives as potent anticonvulsant agents: design,synthesis, in vivo,and in silico evaluations

Molecular Diversity - A novel series of 1,2,3-triazolo-benzodiazepine derivatives 6a–o has been synthesized and evaluated in vivo for their anticonvulsant activities using by...     

Novel four-dimensional autonomous chaotic system generating one-, two-, three- and four-wing attractors

In this paper, we propose a novel four-dimensional autonomous chaotic system. Of particular interest is that this novel system can generate one-, two, three- and four-wing chaotic attractors with the variation of a single parameter, and the multi-wing type of the chaotic attractors can be displayed in all directions. The system is simple with a large positive Lyapunov exponent and can exhibit some interesting and complicated dynamical behaviours. Basic dynamical properties of the four-dimensional chaotic system, such as equilibrium points, the Poincaré map, the bifurcation diagram and the Lyapunov exponents are investigated by using either theoretical analysis or numerical method. Finally, a circuit is designed for the implementation of the multi-wing chaotic attractors. The electronic workbench observations are in good agreement with the numerical simulation results.     

A modeless,variable bandwidth,tunable laser

A novel design of “laser” is described which produces a modeless output giving a continuous spectral distribution and a continuously variable bandwidth. Efficiencies and bandwidths are obtained comparable to convetional laser pumped dye laser. The device is suitable for studies of laser bandwidth effects in resonant interactions and nonlinear processes using high power pulsed lasers.     

Diversity-oriented, one-pot, multi-component synthesis of substituted uracil derivatives

Abstract  

With the emergence of high throughput screening of bioactive molecules, there is constant need for the development of new strategies for diversity-oriented synthesis. We describe here a novel one-pot multicomponent reaction for the synthesis of uracil derivatives using easily available starting materials. This new synthetic strategy provides easy access to diverse uracil derivatives in moderate to good yields.