Organic light emitting diodes (OLEDs) have attracted enormous attention in the recent years because of their potential for flat panel displays and solid state lighting. This potential lies in the amazing flexibility offered by the synthesis of new organic compounds and by low-cost fabrication techniques, making these devices very promising for the market.
The human body is composed of structures organized in a hierarchical fashion: from
biomolecules assembled into polymers, to multimeric assemblies such as cellular organelles,
to individual cells, to tissues, to organ systems working together in health and
disease- each dominated by a characteristic length scale. Decades of science and engineering
are now converging to provide tools that enable the orderly manipulation of biological
systems at previously inaccessible, though critically important, length scales (...
Discussion of nanotechnology can quickly become complex as a full
analysis involves advanced chemistry, biology, physics, computer science,
and engineering. The properties of nano-scale materials are governed by laws
of quantum physics, causing materials to display properties and characteristics
that would be considered by the laws of classic Newtonian physics. It is these
intermolecular forces which cause nanotechnology to be both a vexing
research problem, and yet have enormous potential.
Information technology is another approach to transfer skills. Hiekata et al. (2005A,
2005B, 2006, 2007) developed knowledge transfer system, which can be applied
effectively to acquire knowledge of elder experts. The characteristics of each job were
revealed through questionnaire and structured interviews, and the job process is
analysed and represented by workflow and related documents, where tacit knowledge
of some tasks can be turned to explicitly documented knowledge.
Preparation and characteristics of the In-doped ZnO thin films and the n-ZnO:In/p-Si heterojunctions for optoelectronic switch
n-ZnO:In/p-Si heterojunctions have been fabricated by sputter deposition of n-ZnO:In on p-Si substrates. The lowest resistivity n-ZnO:In film was obtained at a substrate temperature of 150$^o$C using a ZnO target doped with 2 wt\% In$_2$O$_3$. At substrate temperature above 300$^o$C the resistivity of the film increases as the carrier concentration decreases.
Norwich Cathedral stands on the site of no earlier church: it is to-day, in its plan and the general bulk of its
detail, as characteristically Norman as when left finished by the hand of Eborard, the second bishop of
One of the main advantages of this technique is that it can produce the scaffold with main
structural feature suitable for growth of the cell and subsequent tissue organization (Li &
Tuan, 2009; Liang et al., 2007; Leong et al., 2008). It can produce the ultra fine fibers with
special orientation, high aspect ratio, high surface area, and having control over pore
This chapter list the steps involved in preparing animal tissue for microscopic viewing; list several structural and functional characteristics of epithelial tissue; name, classify, and describe the various types of epithelia, and indicate their chief function(s) and location(s).
Connective tissue is the most abundant and widely distributed of the primary tissues, but its amount in particular organs varies. For example, skin consists primarily of connective tissue, while the brain contains very little. This chapter provides knowledge of connective tissue, indicate common characteristics of connective tissue, and list and describe its structural elements.
We know that preventing disease before it starts is critical to helping people live longer, healthier lives and keeping health care costs
down. Poor diet, physical inactivity, tobacco use, and alcohol misuse are just some of the challenges we face. We also know that many
of the strongest predictors of health and well-being fall outside of the health care setting. Our housing, transportation, education,
workplaces, and environment are major elements that impact the physical and mental health of Americans.
This book contains most of the papers presented at the Eco-Architecture 2010
conference, which was the third edition of the International Conference on
Harmonisation between Architecture and Nature. Previous editions were held in
the New Forest, UK (2006) and the Algarve, Portugal (2008) and demonstrated the
importance of a forum like this to discuss the characteristics and challenges of such
Eco-Architecture implies a new approach to the design process intended to
harmonise its products with nature.
Due to their good mechanical characteristics in terms of stiffness and strength coupled with mass-saving advantage and other attractive physico-chemical properties, composite materials are successfully used in medicine and nanotechnology fields. To this end, the chapters composing the book have been divided into the following sections: medicine, dental and pharmaceutical applications; nanocomposites for energy efficiency; characterization and fabrication, all of which provide an invaluable overview of this fascinating subject area. ...
In Chapter 3, eigenvalue equations were derived by matching boundary conditions inside DFB laser cavities. From the eigenvalue problem, the lasing threshold characteristic of DFB lasers is determined. The single %/2-phase-shifted (PS) DFB laser is fabricated with a phase discontinuity of %/2 at or near the centre of the laser cavity. It is characterised by Bragg oscillation and a high gain margin value. On the other hand, the SLM deteriorates quickly when the optical power of the laser diode increases.
Kang et al. Nanoscale Research Letters 2011, 6:236 http://www.nanoscalereslett.com/content/6/1/236
Anti-reflective nano- and micro-structures on 4H-SiC for photodiodes
Min-Seok Kang1, Sung-Jae Joo2, Wook Bahng2, Ji-Hoon Lee1, Nam-Kyun Kim2, Sang-Mo Koo1*
Abstract In this study, nano-scale honeycomb-shaped structures with anti-reflection properties were successfully formed on SiC. The surface of 4H-SiC wafer after a conventional photolithography process was etched by inductively coupled plasma.
Quality characteristics to look for in convertible
sofas are a solid frame, thick steel in the frame, bed frame
securely attached to sofa frame, and durable decking fabric. The wood provides the frame for
the sofa and the steel provides the frame for the bed. The wood should be hardwood and the
steel should be thick enough to support the movement in and out and the weight of people
sleeping on the bed.
The way the mechanical parts of the bed are attached to the wood determines how well
the convertible unit stays together.
Another coil found in the convertible sofa is the rotation coil. This coil is found at the
bottom inside of the sofa frame, which keeps the mattress in line with the bed frame The best
quality sleeper sofas have three rotation coils; poorer quality sleeper sofas have only one.
For quality, you should check the decking fabric located just below the cushions. The
decking fabric should be made of tough and durable material to protect the cushions from
being torn by the flat springs.