Increased Performance Capabilities Research Articles

Current Knowledge and Future Possibilities of Medical Digital Technologies based on Mobile Health

Medical digital technologies have the potential to improve public access to healthcare by enhancing its flexibility. The availability of complementary details about health, ailments, complications, and the most recent advancements in biomedical research are all included. Diagnostic and medical services are now becoming more available and accessible, especially in low-income countries. Regarding digital health technology, there are still a lot of challenges that need to be overcome, such as dependability, safety, testing, and ethical concerns. We propose that mobile technology should enhance rather than replace the psychiatrist-patient connection in the existing environment of inadequate regulatory oversight and scientific research to lessen possible clinical and moral harm to patients at risk. We identify potential areas of moral conflict between consumer-driven mobile businesses and healthcare practice and create a decision tree model for putting ethical safeguards in place. Informed consent, confidentiality, and shared treatment expectations are the main areas of attention for this paradigm when it comes to risk management in the therapeutic partnership. To comprehend the utility, capacity, and limitations, this study covers recent breakthroughs in mobile technologies, their applications, and a comparative analysis of their performance metrics. Understanding the weaknesses of current technologies can facilitate the creation of new frameworks with increased performance capabilities and superior service quality.

Western classical music in a non-Western culture: The repertoires of Japanese professional orchestras in the twentieth century

This study explores the factors that contributed to the development of Western orchestral music repertoires in non-Western nations, with a particular focus on Japan. Japan introduced Western music under the direct government involvement in the early 1900s, and it spread rapidly nationwide for a brief period after World War II (1945 onward). While previous studies have discussed repertoires of Western music in the context of Western society, this study empirically analyses Japanese professional orchestras’ concerts and provides an example of repertoires of Western music in a completely different historical and cultural context. My findings indicate that three factors reduced the concentration of the Western orchestral repertoires of a small number of canonic composers: orchestras’ increased performance capabilities, their financial stability, and local economic growth. I also identify three factors that contributed to the introduction of new and/or other Japanese composers to established repertoires: orchestras’ increased performance capabilities, their financial stability, and the government’s cultural policies.

Photodegradation of 4-nitrophenol using an impinging streams photoreactor coupled with a membrane

In the present work, degradation of 4-nitrophenol (4-NP) in a novel configuration of an axial radial impinging streams photoreactor coupled with a membrane microfiltration was proposed. The influences of initial 4-NP concentration, catalyst loading, slurry flow rate and pH were investigated as the most important operating parameters. Firstly, the performance of axial radial impinging streams photoreactor was evaluated in a batch recirculation mode and optimum conditions for pertinent parameters were determined. Complete decomposition of a 30ppm batch solution of 4-NP was obtained within almost 180min under optimal conditions and the decrease in COD and TOC were 71% and 62%, respectively. The experimental data of 4-NP degradation with an initial concentration in the range of 10–50ppm accorded well with pseudo-first order model. Finally, the photoreactor was equipped with a membrane and applied in the continuous degradation of 4-NP. A combination of pH 4, 2g/L TiO2 and 2.24L/min flow rate were determined to be the optimized conditions for degradation of 30ppm 4-NP in the continuous membrane impinging streams photoreactor. In this reactor, an increased performance capability, a less membrane fouling, a higher permeate flow rate and subsequently a higher efficiency compared to conventional processes can be seen.

Wastewater treatment using photo-impinging streams cyclone reactor: Computational fluid dynamics and kinetics modeling

A photo impinging streams cyclone reactor has been used as a novel apparatus in photocatalytic degradation of organic compounds using titanium dioxide nanoparticles in wastewater. The operating parameters, including catalyst loading, pH, initial phenol concentration and light intensity have been optimized to increase the efficiency of the photocatalytic degradation process within this photoreactor. The results have demonstrated a higher efficiency and an increased performance capability of the present reactor in comparison with the conventional processes. In the next step, residence time distribution (RTD) of the slurry phase within the reactor was measured using the impulse tracer method. A CFD-based model for predicting the RTD was also developed which compared well with the experimental results. The RTD data was finally applied in conjunction with the phenol degradation kinetic model to predict the apparent rate coefficient for such a reaction.

A comprehensive study on wastewater treatment using photo-impinging streams reactor: Continuous treatment

The degradation of phenol was investigated in a continuous flow impinging streams system. In the first step, statistical experimental designs were used to optimize the process of phenol degradation in a photo-impinging streams reactor. The more important factors affecting phenol degradation (p<0.05) were screened by a two-level Plackett-Burman design. Four of the latter parameters, namely phenol concentration, catalyst loading, pH and slurry flow rate, were selected for final process optimization, applying central composite design (CCD). The predicted data showed that the maximum removal efficiency of phenol (99%) could be obtained under the optimum operating conditions (phenol concentration=50 mg l−1, catalyst loading=2.1 g l−1, pH 6.2 and slurry flow rate=550ml min−1). These predicted values were then verified by certain validating experiments. A good correlation was observed between the predicted data and those determined by the experimental study. This may confirm the validity of the statistical optimum strategy. Finally, continuous degradation of phenol was performed, and the results indicated a higher efficiency and an increased performance capability of the present reactor in comparison with the conventional processes.

Performance evaluation of a continuous flow Photo-Impinging Streams Cyclone Reactor for phenol degradation

In this study, an impinging streams cyclone reactor has been utilized as a novel apparatus in photocatalytic degradation of phenol. Degussa P25 TiO2 nano particles have been applied as the photocatalyst under UV radiation. The operating parameters including catalyst loading, pH, initial phenol concentration and light Intensity have been found to affect the efficiency of the photocatalytic degradation process within this photoreactor. Photocatalytic degradation of phenol has been also investigated in a continuous flow impinging streams system. The results have shown a higher efficiency and an increased performance capability of the present reactor in comparison with the conventional processes.

Miniature diaphragm pumps meet the performance challenge

System designers are being challenged to advance their product technology by specifying fluidic modules that can achieve increased performance capabilities while fitting in ever-smaller envelopes. Dan Schimelman from Hargraves Technology explains how the BTC IIS has been designed to outlast most of the systems it will be integrated into.

Organizing the musical canon: the repertoires of major U.S. symphony orchestras, 1842 to 1969

Scholars have addressed the tendency of U.S. symphony orchestras to perform the works of relatively few composers. While many highlight this phenomenon, others note that the nature and extent of this conformity can shift over time, as reliance on the works of certain composers decreases and allows the works of newly heralded composers to be heard. Drawing on the work of DiMaggio and others, we derive hypotheses about field-level factors influencing both phenomena. We analyze more than 86,500 performances given by 27 major U.S. symphony orchestras between 1842 and 1969. Our findings indicate that three factors spur the introduction of new composers into orchestral repertoires: the increased performance capabilities of symphony orchestras, the expanded resources for new music, and the proliferation of music programs among U.S. colleges and universities. We also find that one of these factors reduces the conformity of orchestral repertoires: the increased performance capabilities of orchestras. Our exploratory analyses, then, offer lessons about the organization of the musical canon.

A partitioning advisory system for networked data‐parallel processing

AbstractWith the increased performance capabilities of desktop computers, networked computing has become a popular vehicle for using parallelism to solve a variety of computationally intense problems. However, node heterogeneity and high communication costs may limit performance unless the problem space is carefully partitioned across the network in a way that considers both the capabilities of the machines and the high network communication costs. We describe an advisory system that is designed to help the programmer, compiler or run‐time environment choose the best decomposition strategy for partitioning specific data‐parallel applications across a given collection of machines. The system includes provisions for assessing the capabilities of the participating machines and the network in light of the current workload. Given information about the problem space, the machine speeds and the network, the system provides a ranking of three standard partitioning methods. We test the validity of our system by comparing the observed relative performance with predicted relative performance of different data decompositions on a program with a variable number of floating point operations and a 5‐point stencil communication pattern.

High availability of commercial applications

The increased performance capabilities of UNIX server systems have led to their acceptance as the server of choice for medium-sized and large organizations. But performance is just one facet. Another facet is the end user perception of the availability of an information system.Traditional mainframe based IS shops have a long experience in supplying computing services to their commercial end users. The ultimate goal of the end user is to have no downtimes for his work at his PC or workstation terminal. Key issues related to system availability in client/server based information systems remain the same as in the mainframe based world, e.g. system responsiveness, maximum downtime per year and maximum number of system outages per year. But there are also new aspects, which have been introduced into the discussion.In a multi-tiered client/server based information system the OLTP workload is distributed on different servers. Hence one can ask: Why should a failure of one server automatically imply downtime for the whole system ? Can't most of the system continue to operate ? Redistribution of the workload on the remaining active servers can be used to attack this problem. Workload balancing can be applied for replicated system services. Other techniques have to be applied for non-replicated system services.This paper considers client/server based applications running in a local or wide area network of computers in a distributed system.

Enhanced performance for the manned maneuvering unit

We have all seen the Manned Maneuvering Unit (MMU) on television, in the newspaper, magazines and any number of other places. It is probably one of the most widely recognized articles ever put into orbit. This paper briefly describes the MMU. The description includes an overview of the controls and physical features and a discussion of the propulsion and electrical systems. Operational experience to date is briefly covered. The MMU was first used on STS 41-B for the first untethered space walk on February 7, 1984. Next usage was for the Solar Max mission on STS 41-C, followed by the retrieval of the Westar and Palapa communication satellites on mission STS 51-A in November, 1984. One of the “lessons learned” during these space operations was the need for enhanced performance by the MMU, and leads into a discussion of how that increased performance capability will be provided. Current work on a Propellant Tank Kit (PTK), which will provide enhanced performance, is shown. The PTK will provide sufficient propellant storage capability such that the MMU with PTK will have twice the previous delta velocity capability; i.e., double the MMU's maneuvering ability. Results of development testing in the NASA/JSC Weightless Environment Test Facility are included. Current status of PTK development is presented. This paper ends with a brief discussion of proposed space operations using the enhanced MMU performance in erecting space structures from the Space Shuttle, assembling and maintaining Space Station, rescue-transfer of astronauts and other space operations.

Low Cost 8-Bit Songle Chip Microcomputer Simplifies Softward and I/O Control in Consumer Applications

The phenomenal growth of single chip microcomputers in consumer products has generated greater demand for devices with increased performance capabilities. Microcomputer manufacturers have responded to the demand for increased performance by introducing devices with greater system integration. As a result, functions previously incorporated in several discrete packages have been brought "on chip" reducing package count, board real estate usage, and cost.