oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 12 )

2018 ( 20 )

2017 ( 25 )

2016 ( 19 )

Custom range...

Search Results: 1 - 10 of 7852 matches for " Hans; "
All listed articles are free for downloading (OA Articles)
Page 1 /7852
Display every page Item
Network Economies for the Internet-Application Models  [PDF]
Hans Gottinger
iBusiness (IB) , 2011, DOI: 10.4236/ib.2011.34042
Abstract: We propose a decentralized model of network and server economies, where we show efficient QoS (Quality of Service) provisioning and Pareto allocation of resources (network and server resources) among agents and suppliers, which are either network routers or servers (content providers). Specifically, it is shown 1) how prices for resources are set at the suppliers based on the QoS demands from the agents and 2) how dynamic routing algorithms and admission control mechanisms based on QoS preferences emerge from the user classes for the network economy.
Fatal Complications and Early Death after Surgical Treatment of Lung Cancer in 2000 and 2010. A Population Based Study  [PDF]
Hans Rostad
Surgical Science (SS) , 2013, DOI: 10.4236/ss.2013.41019
Abstract:

In the year 2000 lung cancer was operated in 349 patients in Norway, in 2010 the number was 461. In the first period fatal surgical hemorrhage occurred in eight patients, in four of them peroperatively. Postoperative hemorrhage occurred in four patients in the year 2000 and in two in 2010. Ten patients died intra- or postoperatively in the two periods which is a mortality rate within 30 days after surgery of 4.3% in the first and 1.1% in the second period. Pneumonectomy was performed in 34 patients in 2000 and eight in 2010, respectively. Altogether 19 patients died within six months after surgery without having experienced surgical complications. Pneumonectomy should not be performed in elderly and debilitated persons.

On the Foundations of Guidelines for Health Economic Assessment  [PDF]
Hans Keiding
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.45004
Abstract:

In recent years, increased attention has been given to guidelines for cost-effectiveness analysis of medical interventions, and some of these guidelines (such as NICE [1]) have become rather influential. In the paper, we present a model of retrieving and processing information to be used for the study of guidelines and their use. Our main result, which relies on a version of the theorem of Blackwell [2], shows that in cases where there are sufficiently many decisions to be made on the basis of the information obtained, there can be no other objective ranking of methods than the trivial one ranking more information is higher than less information. In our context, this means that guidelines may have administrative advantages but cannot be considered as a scientifically based approach to better decision making.

The Market for Firms: Market Signaling and Overpricing  [PDF]
Jerome Davis, Hans Keiding
Technology and Investment (TI) , 2010, DOI: 10.4236/ti.2010.13024
Abstract: In this paper, the pricing and sale of firms is approached from the owners’ point of view. It is shown that there are very strong ex ante owner incentives to set prices of firm products or services below their short- term profit maximizing levels, since low prices signal low costs and as a consequence a higher sales value of the firm. Buyers take this signaling into consideration, but irrespective of their countermoves, the equilib- rium result may be a lowering of ex ante product prices, and an ex post market overvaluation of the firm. This model is utilized to suggest possible explanations to one of the more puzzling initial public offer (IPO) phenomena: the long run underperformance of IPO equities.
Deposition of charged nano-particles in the human airways including effects from cartilaginous rings  [PDF]
Hans O. Akerstedt
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.310113
Abstract: This paper presents a numerical study of the deposition of spherical charged nano-particles caused by convection, Brownian diffusion and electrostatics in a pipe with a cartilaginous ring structure. The model describes the deposition of charged particles in the different generations of the tracheobronchial tree of the human lung. The upper airways are characterized by a certain wall structure called cartilaginous rings which modify the particle deposition when compared to an airway with a smooth wall. The problem is defined by solving Naver-Stokes equations in combination with a convective-diffusion equation and Gauss law for electrostatics. Three non- dimensional parameters describe the problem, the Peclet number Pe = 2ūa/D , the Reynolds number Re = ūa/v and an electrostatic parameter α=α2c0q2/(4ε0κT) . Here U is the mean velocity, a the pipe radius and D the diffusion coefficient due to Brownian motion given by D=κTCu/3πμd , where Cu is the Cunningham-factor Cu=1+λ/d(2.34+1.05exp(-0.39d/λ)) Here d is the particle diameter and λ the mean free path of the air molecules. Results are provided for generations G4-G16 of the human airways. The electrostatic parameter is varied to model different concentrations and charge numbers.
Using Insulation in China’s Buildings: Potential for Significant Energy Savings and Carbon Emission Reductions  [PDF]
Guoliang Liu, Hans Liu
Low Carbon Economy (LCE) , 2011, DOI: 10.4236/lce.2011.24027
Abstract: Most old residential and commercial buildings in China are not insulated or not to new standards. This is true even in regions with very cold winters or regions with very hot summers. The insulation in new buildings is very poor relative to North American standards. However, insulating the exterior walls, attic roofs, and foundation walls to new standards of buildings in China would reduce the need for heating and air conditioning, and thus would save roughly 200 million tons of coal each year. This in turn would lead to a reduction in CO2 emissions of about 510 million tons per year, which is equal to about 8.4% of China’s total carbon emissions in 2006. The use of insulation in buildings will help homeowners save money, help China save energy and help the environment all at the same time. Insulation will provide a continued payback to the homeowner, not only in dollars and cents, but also by providing a more enjoyable and comfortable living environment for many years.
Network Economies for the Internet  [PDF]
Hans W. Gottinger
Modern Economy (ME) , 2012, DOI: 10.4236/me.2012.34053
Abstract: The article has been retracted due to the investigation of complaints received against it. The Editorial Board found that substantial portions of the text came from other published papers. The scientific community takes a very strong view on this matter, and the Modern Economy treats all unethical behavior such as plagiarism seriously. This paper published in Vol.3 No.4 408-423, 2012, has been removed from this site.
Photons Are EM Energy Superpositioned on TEM Waves  [PDF]
Hans W. Giertz
Open Journal of Microphysics (OJM) , 2013, DOI: 10.4236/ojm.2013.33013
Abstract: The study displays that TEM waves (e.g. radio waves, light) consist of low frequency plane TEM waves where the radio frequency energy or light energy is superpositioned on these low frequency TEM waves. The superpositioned energy can be discrete and where its frequency ν determines its energy hv and where this superpositioned energy hv is the photon. The study shows that photons and TEM waves are described by the laws of electromagnetism. Hence, there is a duality between the photon and the TEM wave and also a duality between electromagnetism and quantum theory in this case. The low frequency plane TEM waves originate from a singularity in universe and have been described earlier. The study describes how energy from a generator, from light bulbs and radio antennas is superpositioned on low frequency TEM waves, resulting in medium frequency TEM waves, radio waves and light. The study displays that light from the sun consists of light energy superpositioned on low frequency TEM waves. The study describes methods enabling measurement of the low frequency plane TEM waves and the superpositioned energy.
Gravity Caused by TEM Waves Operating on Dipoles in Atoms  [PDF]
Hans W. Giertz
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.32A007
Abstract:

The study displays the existence of a gravitational singularity in the universe generating synchronized and extremely low frequency plane TEM (transverse electromagnetic) waves. It is proposed that atomic intrinsic electromagnetic fields create resonance with these plane TEM waves, causing atoms to receive and to re-emit synchronized plane TEM waves. The energy flow of synchronized plane TEM waves, travelling in opposite directions between e.g. two atoms, creates mutual force of attraction, i.e. gravity. Consequently, gravity is not an intrinsic atomic feature; however, the result of passive atoms exposed to electromagnetic energy. The study describes how plane TEM waves emitted by the gravitational singularity were measured. The study also displays how gravity from the earth, moon, sun and the gravitational singularity was measured and how gravity was simulated using an electronic device. The present electromagnetic law of gravity is compared with Newtonian geometric law of gravity.

Changing Dynamics of Team Leadership in Global Project Environments  [PDF]
Hans J. Thamhain
American Journal of Industrial and Business Management (AJIBM) , 2013, DOI: 10.4236/ajibm.2013.32020
Abstract:

The dynamics and challenges of managing geographically dispersed project teams is examined in a field investigation of 72 multinational product developments, observed and studied between 2008 and 2012. The findings provide insight into the business processes and leadership style most conducive to cross-functional collaboration and effective project integration throughout the enterprise and its partners. The results show that many of the problems that surface on the technical side can be traced to social, psychological and organizational issues. In fact, people issues have the strongest impact on project performance. People are an intricate part of the work process. Issues affecting people, eventually impact the broader enterprise. On the positive side, the study shows that certain conditions, such as personal interest, pride and satisfaction with the work, professional work challenge, accomplishments and recognition, serve as catalysts toward unifying culturally diverse project teams and their work processes. These conditions act as bridging mechanisms between organizational goals and personal interests, between central control and local management norms, and between following a project plan and adaptive problem solving. However, working seamless across borders and cultures requires more than just issuing work orders, project summary plans or management guidelines. Emphasis must be on common values and goals to focus and unify the team. By recognizing the greater autonomy of all international partners as well as their cultural differences, management can build a true partnership among all the contributing organizations with strong linkages for communication, decision making and technology transfer that is sustainable over the project lifecycle. The paper suggests a framework for managerial actions and leadership for building high-performance multinational project teams.

Page 1 /7852
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.