Fabrication Of Self Research Articles

Fabrication of self supporting 64Zn targets for fusion-evaporation studies

Self supporting targets of64Zn having thickness range (448 ± 27 – 1294 ± 40) μg/cm2 were fabricated from ∼ 50 mg of the target material. Vacuum evaporation by resistive heating technique was used to achieve the high evaporation yield. Use of a specially designed pinhole type crucible source minimized the solid angle of evaporation during the fabrication process. Thickness and purity of the fabricated targets were determined by techniques viz., α-transmission method, Rutherford Backscattering Spectrometry (RBS) and Energy Dispersive X-ray Analysis (EDXA). The fabricated targets contained negligible impurities. A target of thickness (513 ± 20) μg/cm2, utilized for a fusion-evaporation study was found to be durable.

Structural, Raman, magnetic and other properties of co-substituted ZnFe2O4 nanocrystals synthesized by solvothermal reflux method

The development of monosize superparamagnetic nanoparticles (NPs) with high saturation mass magnetization (Ms) and colloidal stability are required for advanced biomedical as well as electronic applications. Here we report synthesis, phase formation, morphology, magnetic and colloidal stability studies of monodisperse, single crystallined Zn1−xCoxFe2O4 (x = 0, 0.1, 0.3, 0.5 and 0.7) superparamagnetic NPs. Monodisperse NPs were synthesized by solvothermal reflux method through homogeneous nucleation and self focused growth protocols using quickly decomposable organic metal complex precursors and organic surfactant. All synthesized compounds show cubic mixed spinel structure with monodisperse spherical morphology. X-ray diffraction, electron diffraction, FTIR and Raman spectra analysis reveals that the ferrites are single phase compounds. However, the cubic lattice parameter reduces with enhance of Co2+ concentration due to small ionic radius compared to Zn2+. The Zeta potential studies shows that NPs form a stable dispersion in a nonpolar solvent at room temperature. The Ms enhances from 50.4 to 61.2 emu/g with substituent Co2+ concentration x = 0 to x = 0.7 in compounds. Enhanced magnetic properties may be useful in the fabrication of self assembled 2D layered electronic devices and biomedical applications such as drug delivery, magnetic contrast agents, magnetic hyperthermia materials.

Optical studies of cobalt implanted rutile TiO2 (110) surfaces

Present study investigates the photoabsorption properties of single crystal rutile TiO2 (110) surfaces after they have been implanted with low fluences of cobalt ions. The surfaces, after implantation, demonstrate fabrication of nanostructures and anisotropic nano-ripple patterns. Creation of oxygen vacancies (Ti3+ states), development of cobalt nano-clusters as well as band gap modifications have also been observed. Results presented here demonstrate that fabrication of self organized nanostructures, upon implantation, along with the development of oxygen vacancies and ligand field transitions of cobalt ion promote the enhancement of photo-absorbance in both UV (∼2 times) and visible (∼5 times) regimes. These investigations on nanostructured TiO2 surfaces can be important for photo-catalysis.

Are we our fictions?: The narrative boundaries of self

Abstract Revisiting Dawkin’s proposal of memes – a piece of thought copied from person to person – raises the question: can narrative, and by extension narratology, be utilized to explore the ‘infecting’, or transferring agent of cultural ideas, identity and the creation of self? Intriguingly, and perhaps even more relevant to the role of emergent models and the shifting divide between engineered and organic constructions, what role does media play in the fabrication of self? This article proposes to examine various attempts to define modes of being using the formative and delimiting lens of narrative. It will investigate the role of media as the carrier agent for memetic modes of being, and their application in creating and sustaining cultural individuation. Jung’s declarative of the collective unconscious and archetypes, as well as Hofstadter’s loops, a common, but neglected field of enquiry that interrogates how memetic transference begins with the stories we tell, will inform the exploration of narrative as a means to define, delineate and bound the self.

대항문화로서의 전통음식의 재탄생

이 글은 자본주의 사회에서 전통음식이 과거에 대한 "향수"를 자극하며 재창조되고 소비되는 방식에 대해 논의한다. 이 글은 사찰음식과 안동음식이 재탄생한 과정 등의 사례 분석을 통해 오늘날 전통음식이 상품화되는 과정에서 탈맥락화의 과정을 거친다고 주장한다. 또한 고대 중국 사회에서 채식문화가 불교문화의 일부로 인정받기 시작한 과정을 되짚으며 불교의 채식문화가 여러 환경요인에 의해 발명된 문화라는 점을 밝히려 한다. 고대 중국사회에서 채식문화가 불교사상을 전파하기 좋은 도구로 자리 잡았다면 오늘날 사찰음식은 불교사상의 전파보다는 상품화와 소비를 가능하게 하고 있다. 이 논문은 현대 한국사회에서 전통음식이 다시 인기를 끌고 있는 현상에 초점을 맞추어 이와 같은 현상이 현대 한국사회의 소비자들의 심리와 요구를 어떻게 반영하는가를 살펴본다. 그리고 현대 한국사회에서 각광을 받고 있는 전통음식 문화가 자본주의 사회 내에서 대항문화로서 자리매김할 수 있을지에 대해 논의한다. This paper discusses how the traditional cuisine of Korea capitalizes on "nostalgia" for the past. While examining the (re)invention of Buddhist cuisine and Andong food, this paper contends that traditional Korean cuisine is commodified through a process of de-contexualization. This paper first discusses the possibility that the idea of traditional cuisine is an invention in the first place. The history of temple food, for instance, suggests that it was created as a vehicle for circulating and implementing the ruling ideology in the ancient societies of China. This paper then turns to the issue of the growing influence of traditional cuisine in contemporary Korean culture, which is related to the public's demand for healthy food and also tied with the South Korean society's need for promoting a national cuisine in the age of globalization. The rise of traditional cuisine is a sign that people are seeking to reform their eating habits and form a counterculture. Yet, another side of the story is that consumers end up taking part in the self-expanding capitalist market with more consumer choices rather than forming a genuine counterculture. In this respect, the reinvention of temple food is closely related to what Jean and John L. Comaroff call the "emergence of consumption as a privileged site for the fabrication of self and society, of culture and identity".

A Study of Anodization Time and Voltage Effect on the Fabrication of Self- Ordered Nano Porous Aluminum Oxide Films: A Gas Sensor Application

ABSTRACTThe effect of time and voltage on the fabrication of self ordered nano porous aluminum oxide structure is studied. A two-step anodization process in 0.4M sulphuric acid and at low temperature was used to prepare structure with pore diameter between 20 to 29 nm. The surface morphology, including porous structure mainly, is characterized using scanning electron microscopy. Pore density 1010 to 1011 cm-2 is found. Thickness and electrical response are performed to these films. Capacitive sensor measurements for different water concentration are presented and discussed. The gas sensibility dependences with pore diameter and thickness layer are also reported.

A Novel Way to Fabricate Fe Doped TiO2 Nanotubes by Anodization of TiFe Alloys

Abstract We reported the fabrication of self–organized, vertically oriented Ti–Fe–O nanotube array films grown by anodization of Ti–xFe alloys in an ethylene glycol and NH4F mixed electrolyte and their Uv–Vis spectrum (200–1000 nm) photoresponse properties. The key factor affecting the morphology is the Fe content. The higher the Fe content is, the flatter the nanotubes surface is, and the more disorder the bottom surface appears. XRD and photoresponse measurements demonstrate the realizable iron doping of the nanotube layers, which leads to a significant visible photoresponse. The Ti–12Fe sample prepared has a high photoresponse in visible range of the spectrum.

Fabrication of self assembled micro reservoirs for controlled drug release.

Conventional dosage means, such as oral delivery or injection, are the predominant routes for drug delivery. The main drawbacks of these types of dosages consist essentially in a limited control of the drug delivery rate and of the target area. The conventional delivery is often associated with an immediate or rapid drug release. Accordingly, the initial concentration of the drug in the body peaks above the level of toxicity and then gradually diminishes over time to an ineffective level. Besides, the drug can have undesired side-effects if distributed in all the body by the circulatory system. Our activity is aimed at the development of alternative drug delivery methods enabling a more precise control of the delivery rate and target area. A technique for microreservoirs fabrication combining conventional photolithography and self assembling is presented. The drug contained in the microreservoirs can be released by externally applied electromagnetic waves focused on the target volume.

Self Assembly of Polymer Structures Induced by Electric Field

Amethod has been developed for fabricating polymer microstructures based on electric field induced self assembly and pattern formation. A dielectric fluid placed in between two conductive plates experience a force in an applied electric field gradient across the plates, which can induce a diffusive surface instability and self construction of the fluid surface. This process is exploited for the fabrication of self assembled polymer microstructures as well as replicated patterns through the use of pre-patterned plates or electrodes. FEM simulation is used to decide the minimum wavelength and electric gradient distribution of polymer structures. A variety of structures in the micron and nanometer scales including bio-fluidic MEMS, polymer optoelectronic devices can be fabricated using this method.

Self Assembly of Polymer Structures Induced by Electric Field

Amethod has been developed for fabricating polymer microstructures based on electric field induced self assembly and pattern formation. A dielectric fluid placed in between two conductive plates experience a force in an applied electric field gradient across the plates, which can induce a diffusive surface instability and self construction of the fluid surface. This process is exploited for the fabrication of self assembled polymer microstructures as well as replicated patterns through the use of pre-patterned plates or electrodes. FEM simulation is used to decide the minimum wavelength and electric gradient distribution of polymer structures. A variety of structures in the micron and nanometer scales including bio-fluidic MEMS, polymer optoelectronic devices can be fabricated using this method.

Electric Field Induced Self Assembly and Template Patterning of Polymer Microstructures

ABSTRACTWe have developed a method for fabricating polymer microstructures based on electric field induced self assembly and pattern formation. A dielectric fluid placed in between to conductive plates experiences a force in an applied electric field gradient across the plates, which can induce a diffusive surface instability and self construction of the fluid surface. This process is exploited for the fabrication of self assembled polymer microstructures as well as replicated patterns through the use of pre-patterned plates or electrodes. We have used silicon wafers and transparent ITO (Indium-Tin Oxide) coated quartz substrates to fabricate the capacitor structures. The bottom silicon plate is spin coated with a 100-200 nm thick polystyrene film. The ITO substrate was placed over the polymer surface at a distance to leave a thin air gap using spacers. For directed pattern transfer, patterned ITO substrates were used. The capacitor setup was heated above the glass transition temperature of the polymer and a voltage was applied across the plates (50-150 Volts), which induces electric fields on the order of 107–108 V/m. The capacitor structure was quenched to observe the structures using optical microscopy and atomic force microscopy. The method described can be used to fabricate a variety of structures in the micron and nanometer scales including bio-fluidic MEMS, polymer optoelectronic devices and patterned templates for nanolithography.

Book Review: The Fabric of Self: A Theory of Ethics and Emotions

Book Review: The Fabric of Self: A Theory of Ethics and Emotions

The Fabric of Self: A Theory of Ethics and Emotions

illuminates our path through a cluttered conceptual territory. I think this is a straining, important contribution to our understanding of emotion and the -- Arlie Russell Hochschild, author of The Time Bind: When Work Becomes Home and Home Becomes WorkMargolis's grasp of the complexities of selfhood in contemporary life is a key contribution of her work. She takes us on a fascinating and readable excursion in social -- John P. Hewitt, author of Dilemmas of the American SelfWays of viewing the self change when social environments change, argues Diane Rothbard Margolis in this powerful work of social theory. She analyzes six views of the self found in contemporary Western cultures and shows how each plays a critical role in society and in our everyday lives. Each image of the self is a moral construct expressing what is forbidden, allowed, and expected. Each was created at a historical moment that demanded a new assessment of fight and wrong. No moral orientation is, in absolute terms, better or worse than any other, Margolis contends; each continues to exist because it permits or demands some form of action required by contemporary society.Although the idea of the self as an individualistic exchanger -- rational, self-interested, competitive -- may dominate current discourse, especially in market economies, Margolis describes other constructs: the obligated self, the cosmic self, the reciprocating self, the called person, and the civic self. She delineates the moral ideas from which these images arise and develops a theory of emotions to explain how we live by several moral orientations simultaneously. Her perspective on moral orientations andemotions illuminates such contemporary dilemmas as why women and men may play the same social role quite differently, why women encounter the glass ceiling, and why nationalism persists despite the growth of world markets.

The fabric of self: a theory of ethics and emotions

The fabric of self: a theory of ethics and emotions

Communication problems in the intensive care unit

Hospitalization in an intensive care unit is often physically uncomfortable and socially disorganizing. The ordinary forms of conversational participation that generate and sustain a sense of agency are breached when the patient cannot communicate in socially consensual “real time.” Using my own experience in an intensive care unit, I describe how delayed speech, through the use of an alphabet board, frequently leads to a host of interactional problems and mutual accusations about character. I attempt to show that the fabric of self and the perception of quality of care are achieved through “real time” communication. I also describe the differential communicative structure of those who will not and those who will use my alphabet board. Those using the board exhibit, through board employment and through the “local” topics discussed, a depth of common culture between them and me.