Дисертації: "PCOM"

1

Schwegmann, Christian. "Entwicklung eines Rahmenwerks zur Modellierung von Qualitätsmerkmalen für Konfigurationen in PCOM." [S.l. : s.n.], 2005. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB12103667.

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2

Störzbach, Andreas. "Entwicklung und Evaluation eines Algorithmus zur Anpassung von Anwendungen in PCOM." [S.l. : s.n.], 2005. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB12103671.

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3

Reinsch, Michael. "Entwicklung und Evaluation eines Algorithmus zur initialen Konfiguration von Anwendungen in PCOM." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11482147.

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4

BAIETTO, OLIVIERO. "Naturally Occurring Asbestos: the problem of quantification." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2737675.

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5

Koivunen, R. (Riitta). "Endocrine and metabolic changes in women with polycystic ovaries and polycystic ovary syndrome." Doctoral thesis, University of Oulu, 2001. http://urn.fi/urn:isbn:9514264266.

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Abstract The prevalence of the isolated ultrasonographic finding of polycystic ovaries (PCO) in the Finnish population and among women with a history of gestational diabetes (GDM) and changes in the present carbohydrate metabolism were investigated in the present study. One aim of this study was to investigate the prevalence of the recently discovered variant type LH (v-LH) in PCOS and to compare patient cohorts from Finland, the Netherlands, the United Kingdom and the United States of America. In addition, this study attempted to evaluate the nature of the ovarian streoidogenic response of women with PCOS to exogenously administered human chorionic gonadotrophin (hCG), human menotrophin (hMG) and follicle stimulating hormone (FSH). The effect of metformin on ovarian steroidogenesis was also studied. The prevalence of PCO was significantly higher in younger (≤ 35 years, 21.6%) than among older women (in ≥ 36 years, 7.8%). The overall prevalence of PCO in Finnish women was 14.2%. Women with previous GDM revealed a high prevalence of PCO (39.4%). The carrier frequency of the v-LHb allele in the entire study population was 18.5%. The frequency of the v-LH carrier was significantly lower in obese PCOS subjects in the Netherlands (2.0%) and Finland (4.5%). Women with previous GDM had impaired insulin sensitivity and β-cell function. They also had higher adrenal androgen secretion than the control women. Women with PCO and previous GDM had marked hyperinsulinemia which was not explained by obesity. Obese PCOS women achieved peak peripheral serum T concentrations at 48 hours after a hCG injection, preceded by peak levels of 17-OHP and E2 at 24 hours. In contrast, all steroids measured in the control women reached their maximum serum concentrations at 96 hours. HMG stimulated the production of ovarian androgens more efficiently than a urinary FSH after pituitary suppression with a gonadotrophin releasing hormone agonist (GnRHa). In conclusion, the prevalence of PCO is common in healthy Finnish women and even more common in women with a history of GDM. The ultrasonographic appearance of PCO may be a predictive factor with regards abnormal glucose tolerance during and after pregnancy and, these women should therefore be advised as to possible consequences. The high overall frequency of the v-LH allele in women in general and its low frequency in obese PCOS patients suggests that v-LH plays a role in reproductive functions and may counteract the pathogenesis of PCOS in obese individuals. The differences observed in steroid responses to hCG between normal and PCOS women might be explained by higher theca cell activity or mass in polycystic ovaries. Women with PCOS did not show a distinctly exaggerated steroidogenic response to hMG or FSH administration compared with control women. FSH administration also resulted in increased A and T production.

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6

Yassir, Tartil Jasmine. "Metformin som alternativ förstahandsbehandling vid infertilitet vid Polycystiskt ovarialsyndrom." Thesis, Linnéuniversitetet, Institutionen för kemi och biomedicin (KOB), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-45201.

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Polycystisktovarialsyndrom (PCOS) förekommer hos 5-10% av alla kvinnor och är den vanligaste orsaken till anovulatorisk infertilitet. Andra delar av syndromet är hyperandrogena och metabola symtom. Infertilitet behandlas med klomifencitrat. Akne och hirsutism behandlas i första hand med kombinerade p-piller med östrogenprofil. Förhöjda blodsockernivåer, hypertoni, dyslipidemi och övriga komplikationer till syndromet behandlas farmakologiskt vid behov. Hyperandrogenism och insulinresistens tycks spela en huvudroll i uppkomsten av sjukdomen. Då metformin förbättrar insulinkänsligheten, och tros kunna påverka patofysiologin, har det föreslagits som en alternativ förstahandsbehandling. Denna litteraturstudie syftade till att undersöka vilket vetenskapligt underlag som finns för att ändra behandlingsrekommendationerna vid PCOS. De studier som jämfört resultatet av metformin och klomifencitrat vid anovulatorisk infertilitet visar att klomifencitrat mer effektivt framkallar ovulation och graviditet hos kvinnor med PCOS och övervikt, men att metformin är lika effektivt hos normalviktiga kvinnor. Medan metforminbehandling är en välbeprövad och säker behandling med få biverkningar har klomifencitrat allvarliga biverkningar i form av risk för flerbörd och ovarialthyperstimuleringssyndrom. De få studier som undersökt metformins påverkan på fostret finner inga belägg för teratogena effekter. Metformin har positiva effekter på hyperandrogena symtom vid PCOS, och man har inte kunnat se någon signifikant skillnad i effekt mellan metformin och p-piller då det gäller att minska akne och hirsutism. Dessutom finns det belägg för att metformin kan ha en positiv påverkan på BMI och blodtryck, förbättra lipidprofilen genom att sänka nivåerna av LDL kolesterol, samt minskar risken hos denna patientgrupp att utveckla typ 2 diabetes. Sammantaget kan dock sägas att det vetenskapliga underlaget ännu är för svagt för att man ska ändra den rådande behandlingsrekommendationen. Det finns behov av större, blindade studier där man jämför metforminbehandling med klomifencitrat och tittar på en kombination av faktorer och utfall kopplade till symtombilden vid PCOS.

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7

Karlson, Johan, and Pernilla Vedenbrant. "Att leva med PCOS." Thesis, Linnéuniversitetet, Institutionen för hälso- och vårdvetenskap, HV, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-12004.

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Aim: To describe the lived experience of women with polycystic ovary syndrome (PCOS). Method: Eight scientific articles of appropriate quality were found, analyzed, condensed and synthesized. Different experiences by women with PCOS were found and ordered into themes. The findings were then anchored in associated literature and discussed. Results: Four different themes were found: Feeling different; Disturbing symptoms; Searching for answers; Care treatment. Each of these themes offered areas of improvement in regard to nursing care. Conclusions: Extra attention to the psychosocial aspects of health for women with PCOS should be taken to improve nursing care. The exchange of information between nursing staff and patients needs to be better adapted to the individual informational needs of women with PCOS.

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8

Morgan, Jon, and Charles H. Jones. "PCM Backfill: Providing PCM to the Control Room Without Dropouts." International Foundation for Telemetering, 2014. http://hdl.handle.net/10150/577490.

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ITC/USA 2014 Conference Proceedings / The Fiftieth Annual International Telemetering Conference and Technical Exhibition / October 20-23, 2014 / Town and Country Resort & Convention Center, San Diego, CA
One of the initial control room capabilities to be demonstrated by iNET program is the ability to provide data displays in the control room that do not contain data dropouts. This concept is called PCM Backfill where PCM data is both transmitted via traditional SST and recorded onboard via an iNET compatible recorder. When data dropouts occur, data requests are made over the telemetry network to the recorder for the missing portions of the PCM data stream. The retrieved data is sent over the telemetry network to the backfill application and ultimately delivered to a pristine data display. The integration of traditional SST and the PCM Backfill capability provides both real-time safety of flight data side-by-side with pristine data suitable for advanced analysis.

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9

Bondurant, Philip D., and Andrew Driesman. "Smart PCM Encoder." International Foundation for Telemetering, 1995. http://hdl.handle.net/10150/611601.

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International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada
In this paper, a new concept in PCM telemetry encoding equipment is described. Existing "programmable" PCM encoders allow only simple changes in the functionality of the hardware, such as input gain, offset, and word formatting. More importantly, these encoders do not provide capability for "in-flight" processing of signals and in general have not taken advantage of existing hardware and software digital signal processing technology. In-flight processing of signals can provide a significant reduction in the required transmission bandwidth, allowing additional data that may not have otherwise been transmitted to be sent on the telemetry channel. A modular digital signal processor (DSP) based PCM encoder architecture is described that has a set of on-board processing algorithms configurable via a simple-to-use graphical user interface. Algorithms included are compression (lossy and lossless), Fourier transforms of various resolutions (typically followed by peak detection to provide a data rate reduction), extreme values (max, min, rms), time filtering, regression, trajectory prediction, and serial data stream processing. Custom algorithms can be developed and included as part of the suite of processing algorithms. The preprocessing algorithms exist as firmware on the DSPs and can accommodate as many different signals as the processing bandwidth of the DSP can handle. Typically one DSP can handle many input signals and different algorithms. The encoder is programmable via a standard RS-232 serial interface allowing the signal input configuration, telemetry frame layout, and on-board processing algorithms to be changed quickly.

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10

Badji, Aisha. "A PCOS-like Drosophila Melanogaster model." Thesis, Högskolan i Skövde, Institutionen för hälsa och lärande, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-17845.

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Polycystic ovary syndrome (PCOS) is a female endocrine disorder defined by high androgen levels and presence of polycystic ovaries. PCOS is characterized by menstrual irregularities, anovulation, infertility, hyperandrogenism, insulin resistance, abdominal obesity, chronic inflammation and increased hair growth. The diagnosis is based on 2003/2004 Rotterdam criteria, which is based on the presence of the following phenotypes: anovulation, clinical and biochemical marks of hyperandrogenism and polycystic ovarian morphology. Theoretical causes could be genetical, environmental or maternal imprinting. Drosophila Melanogaster, a model used broadly in disease research, could bear promising insights to this syndrome. Besides having a lifecycle characterized by a 12 days metamorphism, these species of flies have the ecdysone (steroid) hormone, similar to the human testosterone and the body systems similar to those of the human body. This laboratory work involved the development of a PCOS-like drosophila fly model through exposure to 10mg/ml of testosterone after 24 hours of starvation. Data collection comprised measurements of weight and length, anovulation, triglyceride quantification and RT-qPCR for quantification of inflammatory and PCOS-related genes. Results showed significant differences in response to physical stress among the four groups of flies. Variation in weight and length values, as well as in fecundity, triglyceride assay and relative expression levels were also observed. Although the expression levels of inflammatory and PCOS- related genes were not significantly affected, homeostasis was clearly affected by metabolic disturbances. These observations lead to the conclusion that further experiments should be done in order to establish a more comprehensive definition of the syndrome.

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11

Wood, David L. "Abnormal Uterine Bleeding, Amenorrhea and PCOS." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/5172.

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12

Jones, Charles H., and Lee S. Gardner. "COMPLEXITY OF PCM FORMATTING." International Foundation for Telemetering, 1997. http://hdl.handle.net/10150/609697.

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International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada
How difficult is it to develop a pulse code modulation (PCM) stream data format? Specifically, given a size, in bits, and a set of parameter sample rates, how hard is it to find a mapping of the sample rates that fits into the frame size -- if one even exists? Using telemetry trees this paper will show that the number of possible mappings for a given set of parameters and sample rates grows exponentially in terms of the number of parameters. The problem can thus be stated in terms of finding a specific instance, or showing that no such instance exists, among an exponentially large number of potential mappings. Although not proof, this provides strong evidence that the PCM format design problem is NP-complete (meaning it is a member of nondeterministic polynomial space but not a member of deterministic polynomial space). That is, that the problem can not be solved in polynomial time and would take a computer years or centuries to solve relatively small instances of the problem. However, if the problem requirements are relaxed slightly, telemetry trees can be used to reduce the PCM formatting problem to linear time in terms of the number of parameters. This paper describes a technique that can provide an optimal and fully packed PCM format.

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13

Barker, S. "Planktonic foraminiferal proxies for temperature and pCO2." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.596364.

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The thesis aims to describe developments in the uses of planktonic foraminiferal calcite for oceanographic applications, specifically Mg/Ca ratios and foraminiferal shell weights as proxies for calcification temperature and paleo-pCO₂ respectively. Sample preparation for the analysis of Mg/Ca and Sr/Ca ratios in foraminiferal calcite is investigated with the aim of defining a method that will give reproducible results and minimise signal contaminations. Each step of the cleaning procedure is scrutinised in order to gauge which are most important and which may be omitted as unnecessary and potentially detrimental to the elemental measurements being made. Success in the application of Mg/Ca-thermometry depends on the ability to quantify and compensate for any alteration of the primary signal after deposition. Compositional variations in foraminiferal calcite may be associated with partial dissolution at the seaflow. Investigation is made into the excessive scatter observed within a latitudinal transect of core-top Mg/Ca and Sr/Ca ratios and attributed to partial dissolution. Possible means of correcting or minimising the effects of such alteration are investigated and assessed. Recent interest in planktonic foraminiferal shell weight loss as a proxy for dissolution, and as such a potential means of quantifying compositional variability, demands investigation into the possibility that initial shell weight may not be constant. It is demonstrated that considerable variability does occur in the shell weights of several species of planktonic foraminifera in the modern surface ocean. It is proposed that initial shell weight is a function of calcification rate and controlled ultimately by the carbonate ion concentration, [CO₃⁼], of ambient seawater during calcification. A first attempt is made to calibrate the effects of [CO₃⁼] on shell weight in the modern ocean. The potential effects of anthropogenic atmospheric CO₂ increases on marine calcification are then synthesised using the mineral relations between [CO₃⁼] and calcification rate.

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14

Conell, David. "APPLICATIONS AND DESCRIPTION OF THE 9000SE PCM SIMULATOR FOR SIMULATION OF PCM DATA." International Foundation for Telemetering, 1991. http://hdl.handle.net/10150/613165.

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International Telemetering Conference Proceedings / November 04-07, 1991 / Riviera Hotel and Convention Center, Las Vegas, Nevada
This paper will discuss the needs and requirements of a PCM encoder data simulator. The 9000SE PCM encoder data simulator allows for the simulation of flight PCM data as well as bit error rate (BER) test patterns designed for link stress analysis. In addition, the open architecture of the 9000SE as an ISA bus device allows for the incorporation of the simulator into application specific realtime systems.

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15

Escriva, Michel. "Etude comparée des effets de l'alimentation entérale sur les valeurs du pHi et du gradient tonométrique de PCO2 ([delta] PCO2)." Montpellier 1, 1997. http://www.theses.fr/1997MON11154.

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16

Kirk, William S., Shawn Kirkpatrick, and Evan Mussemann. "EIGHT CHANNEL PCM DATA FORMATTER." International Foundation for Telemetering, 1997. http://hdl.handle.net/10150/607602.

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International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada
Advancing technology continually generates larger quantities of data at increasingly high transfer rates which fuels the need for instrumentation to take up the challenge of efficiently managing the collection of data. This defines the driving force behind the desire for increased channel capacity of PCM data formatters. By incorporating state-of-the-art Digital Signal Processing (DSP) technology coupled with high-performance Field Programmable Gate Arrays (FPGA), Inter-Coastal Electronics has designed the IF-810, a PCM data formatter. The IF-810 allows eight channels of PCM data, one voice channel and an InterRange Instrumentation Group (IRIG)-B channel to be combined and formatted for recording onto the TEAC RX-800 series recorders using a Hi8 8mm video cassette as the recording media. During playback, the IF-810 clocks the PCM data out using a reconstructed version of the input clock. With this unique design, the PCM data and clock outputs are input directly to a decommutator which eliminates the need for costly bit-synchronizers. This paper discusses the integration of the DSP, FPGA and buffering techniques into a low-cost and efficient multi-channel PCM data formatter that accommodates high data rate inputs, all without the need of a bit-synchronizer for decommutation.

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17

Wigfall, Glenn D. "SMART MUNITIONS PCM TELEMETRY SYSTEM." International Foundation for Telemetering, 1990. http://hdl.handle.net/10150/613392.

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International Telemetering Conference Proceedings / October 29-November 02, 1990 / Riviera Hotel and Convention Center, Las Vegas, Nevada
The last decade brought about the development of “smart” weapons and munitions that proved to be more efficient than conventional weapons based on their efficiency in the number of targets hit relative to the number hit using conventional weapons. The awakening of sensor-controlled, sensor-guided munitions technology has introduced a definitive need for telemetry instrumentation in developmental testing of this rapidly growing field. To satisfy the Army’s need for sensor-controlled, anti-tank munitions, several development programs are under way for the research and design of these systems. Telemetry has been a critical element in the development of these programs. From the program’s conception and through to its completion, the Armament, Research, Development, and Engineering Center-Telemetry Section has developed data acquisition systems to monitor the activity of such sensorcontrolled smart projectiles to support Army programs. This paper will discuss the development and use of a PCM telemetry system that has had tremendous success in use with these types of projectile programs in their sensor development and system integration stages. The application, albeit specific to these projectile programs, can be tailored to meet the needs of numerous test configurations within the Army or other organizations facing this need.

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18

Yun, Paul M. "New Concepts in PCM Encoding." International Foundation for Telemetering, 1987. http://hdl.handle.net/10150/615331.

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International Telemetering Conference Proceedings / October 26-29, 1987 / Town and Country Hotel, San Diego, California
The Pulse Coded Modulation (PCM) Encoder Systems used in telemetry have gained enormous flexibility for various applications because the input data channels and frame sync codes are programmable via the EEPROMs or UVEPROMs. The firmware in the current PCM Encoder Systems can be readily tailored for a specific application to monitor numerous types of analog channels, as well as digital channels. However, the current PCM Encoder Systems require several types of strap options which dictate not only a limited choice of gains and offsets, but also a fixed choice of the premodulation filter characteristics. The brain of the 1000 PCM Encoder is the Digital Signal Processor (DSP) which eliminates the fixed premodulation filter characteristics via digital filter functions, and also eliminates strap options via general purpose microprocessor functions.

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19

Al-Busaidi, Zakiya Nasser Khalfan. "Enhanced lifetime of organic photovoltaics based on P3HT: PCBM." Thesis, Durham University, 2017. http://etheses.dur.ac.uk/12435/.

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The short lifetime of organic photovoltaics (OPVs) is a key factor that limits the commercialization of this flexible, low-cost PV technology. The sensitivity of OPVs to water and oxygen in the ambient environment has been found to be the major reason for their degradation. Therefore, techniques to protect the devices from water and oxygen are needed. This thesis introduces new methods designed to reduce the impact of water and oxygen on the lifetime of OPV devices. Two different methods were developed, both using insulating polymers. The first was the addition of an insulating polymer, such as poly (methyl methacrylate) (PMMA), or poly (ethylene glycol) (PEG), to a poly (3-hexylthiophene): [6, 6]-phenyl-C61-butyric acid methyl ester (P3HT: PCBM) OPV blend (ternary approach). It was found that this technique increased the lifetime of the OPVs, due to the ability of the insulating polymers to work as gettering agents for water. The second method that was used is laminating OPVs with an insulating polymer. It was found that this lamination technique enhanced the device lifetime more than the ternary approach due to the creation of a barrier to the ingress of both oxygen and water.

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20

Habicher, Marit [Verfasser]. "Zentralvenös – arterielle pCO2 - Differenz bei kardiochirurgischen Patienten / Marit Habicher." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2014. http://d-nb.info/1046563688/34.

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21

Rodriguez, Harry. "SPACEBOURNE VME BASED PCM ENCODER (VPE)." International Foundation for Telemetering, 1993. http://hdl.handle.net/10150/608848.

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International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada
The VME bus is used in a wide variety of airborne applications. The particular application of the VPE is for use in the MSTI satellite to provide spacecraft telemetry. The VME based PCM encoder can provide telemetry from any stand alone data acquisition system. This paper describes the VME based PCM encoder. Since this design is ruggedized to meet the launch and environmental requirements for space, it can be used in any airborne VME system.

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22

Duffy, Harold A. "Merging of Diverse Encrypted PCM Streams." International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/611392.

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International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California
The emergence of encrypted PCM as a standard within DOD makes possible the correction of time skews between diverse data sources. Time alignment of data streams can be accomplished before decryption and so is independent of specific format. Data quality assessment in order to do a best-source selection remains problematic, but workable.

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23

Carlson, John R. "Specifying and Evaluating PCM Bit Synchronizers." International Foundation for Telemetering, 1989. http://hdl.handle.net/10150/614626.

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International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, California
As we enter the 1990's PCM Bit Synchronizers continue to be of major importance to data recovery systems. This paper explains the specification of PCM Bit Synchronizers and provides insight into real world performance requirements and verification methods. Topics include: Theoretical bit error ratio for wideband versus prefiltered data, probability of cycle slip, jitter, transitition density and transition gaps. The merits of multiple and/or adaptive, loop bandwidth, input signal dynamic range, and embedded Viterbi decoders are also discussed. Emphasis is on the new high data rate applications, but the concepts apply to the specification of bit synchronizers in general.

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24

Breedlove, Phil, and Earl Malone. "1553 Data BUS/PCM Multiplexer System." International Foundation for Telemetering, 1989. http://hdl.handle.net/10150/614492.

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International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, California
A Telemetry system which integrates 1553 Bus data, DualSimplex bus data, vehicle performance data, and environmental sensor data multiplexing encompasses many interfacing constraints. The Engineering design considerations and hardware constraints required to implement this system are presented in this paper.

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25

Troth, William B. "Modular PCM System with Wireless Interconnect." International Foundation for Telemetering, 1989. http://hdl.handle.net/10150/614696.

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International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, California
Versatility is the keyword in modern airborne telemetry systems. Only a system with an inherent ability to be changed can be cost effective in an environment where requirements change as often and as rapidly as in todays missile and aircraft test instrumentation. This paper will describe a totally wireless, modular, PCM telemetry system. Using stored program format control (user programmable) and implemented with low power programmable logic devices, this new system can be altered with minimal effort and cost. Functional modules can be added or changed as program requirements evolve. Elastomeric connectors are used to achieve high density, wireless, high reliability interconnection between modules. This connection technique allows easy access to individual modules for repair or replacement without damaging substrates or components.

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26

Smith, Daniel D. "DATA COMPRESSION IN PCM TELEMETRY SYSTEMS." International Foundation for Telemetering, 1986. http://hdl.handle.net/10150/615422.

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International Telemetering Conference Proceedings / October 13-16, 1986 / Riviera Hotel, Las Vegas, Nevada
The data capacity of aerospace PCM telemetry systems can be greatly improved by the application of data compression techniques, which exploit the redundancy in typical telemetry data. This paper describes the design concept for a compressed PCM (CPCM) telemetry system, and contrasts system design considerations to those involved in development of a conventional PCM system. Simulation results are presented depicting potential benefits from use of telemetry data compression on an upper-stage launch vehicle.

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27

Futang, Zhang. "Data Synthesis in PCM Telemetry System." International Foundation for Telemetering, 1986. http://hdl.handle.net/10150/615425.

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International Telemetering Conference Proceedings / October 13-16, 1986 / Riviera Hotel, Las Vegas, Nevada
In the field of re-entry telemetry, data synthesis is an important research task for multibeam and multi-reseiver system. This paper presents a microcmputer-based method to synthesize PCM data in real-time. The performances of various criteria used in data synthesis systems are also analyzed here.

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28

Thom, Gary A. "PCM SIMULATOR ARCHITECTURE REDUCES SETUP COMPLEXITY." International Foundation for Telemetering, 1985. http://hdl.handle.net/10150/615740.

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International Telemetering Conference Proceedings / October 28-31, 1985 / Riviera Hotel, Las Vegas, Nevada
The advent of Bit Slice Processors and related architectures has produced numerous high performance PCM Data Simulators. Many of these fall into the category of stored program simulators, which give the user unlimited flexibility and power. These simulators allow the user to program almost any imaginable format, with combinations of subframes, subsubframes, and asynchronously embedded subframes. The drawback is that the user is forced to program the simulator using a very detailed machine level language which usually has no obvious relation to PCM frame formats. A new simulator architecture allows the user to describe the frame format to be simulated in familiar terms. This eliminates the need to learn yet another programming language or develop a Compiler. The user identifies common parameters such as frame length, subframe length, and where special words should be located. These special words can be unique sensor data words, a table of sensor data, ID counters, subframe slots and so on.

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29

Davis, Kimberly D. "Out of Order." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc271800/.

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Out of Order is a documentary film that explores the emotional and physical aspects of living with polycystic ovarian syndrome. This reproductive disorder affects between 5 and 10% of all women of reproductive age. This film features an animated, autobiographical look at director Kimberly Davis' personal experience with this condition.

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30

Robert, NYAMVUMBA. "Technical and economic feasibility study for the development of small and medium-scale grid connected Renewable Energy in Rwanda." Thesis, KTH, Energiteknik, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-98397.

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31

Freisinger, Birger [Verfasser]. "Investigation of P3HT PCBM particle-based solar cells / Birger Freisinger." Mainz : Universitätsbibliothek Mainz, 2013. http://d-nb.info/1036317927/34.

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32

Bellander, Rickard. "Testing large samples of PCM in water calorimeter and PCM used in room applications by night-air cooling." Licentiate thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-495.

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33

Borgen, Gary. "MICROCONTROLLER BASED PCM ENCODERS FOR TELEMETRY INSTRUMENTATION." International Foundation for Telemetering, 2005. http://hdl.handle.net/10150/604920.

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ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada
Pulse Code Modulation (PCM) Encoders used in Telemetry Instrumentation systems have traditionally been implemented using sequencer or state-machine based micro-architectures with distributed control and signal acquisition components. This architecture requires the use of many discrete electronic components and custom micro-code programming or state machine development for the control of the systems. The advent of relatively high-speed microcontrollers with embedded signal acquisition subsystems has brought about the ability to implement highly integrated PCM Encoder systems using fewer components and standardized programming methods. This paper will discuss sequencer based PCM encoders for background and then introduce the concept of Microcontroller Based PCM Encoders for Telemetry Instrumentation. Specific design examples will be introduced. Advantages and disadvantages of the two techniques will be discussed.

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34

Law, Gene, and Don Whiteman. "IFM EFFECTS ON PCM/FM TELEMETRY SYSTEMS." International Foundation for Telemetering, 1998. http://hdl.handle.net/10150/607378.

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International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, California
Incidental Frequency Modulation (IFM) products in telemetry transmitters can be a significant cause of bit errors in received Pulse Code Modulation/Frequency Modulation (PCM/FM) telemetry data. Range Commanders Council (RCC) and other documents give little or no guidance as to acceptable levels of IFM for telemetry applications. The expected higher vibration levels of future high velocity missile systems means that IFM levels are likely to be higher than previously encountered. This paper presents measured data on Bit Error Rate (BER) versus IFM levels at given Signal to Noise Ratios (SNR’s) for PCM/FM telemetry systems. The information presented can be utilized with BER versus SNR plots in the Telemetry Applications Handbook, RCC Document 119, to determine the additional link margin required to minimize IFM effects on telemetry data quality.

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35

Hales, John C. "VIDEO CASSETTE RECORDING. OF STANDARD PCM DATA." International Foundation for Telemetering, 1986. http://hdl.handle.net/10150/615283.

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International Telemetering Conference Proceedings / October 13-16, 1986 / Riviera Hotel, Las Vegas, Nevada
Standard video cassette recorders (VCR’s) are relatively inexpensive, small, and capable of recording large quantities of data for hours. The problem with using VCR’s to record pulse code modulated (PCM) digital data is that glitches are recorded in the serial data stream coincident with the video sync pulses. This problem can be solved by formating the PCM data stream and synchronizing the video sync pulses to the PCM data.

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36

Carden, Frank F., and Sharmin Ara. "PCM/FM+FM/FM Bit Error Rate Determination by Modeling and Simulation." International Foundation for Telemetering, 1993. http://hdl.handle.net/10150/611852.

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International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada
A composite PCM/FM+FM/FM system combines the spectral efficiency of the analog system with the accuracy of a PCM system when needed for specific sensors and allows the direct transmission of binary computer words if necessary. A PCM/FM+FM/FM system combines the bit sequence with the modulated subcarriers at baseband and the resultant modulates the carrier. In the design of the composite system it is of importance to determine the impact of the subcarriers on the bit error rate of the bit sequence and to determine the degradation of the output signal-to-noise ratio of the subcarrier channels caused by the bit sequence.

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37

Dulla, Chris. "Adenosine and adenosine triphosphate link Pco2 to cortical excitability via pH /." Connect to full text via ProQuest. IP filtered, 2005.

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38

Bergqvist, Jonas. "Microstructure and Temperature Stability of APFO-3:PCBM Organic Photovoltaic Blends." Thesis, Linköping University, Biomolecular and Organic Electronics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-58559.

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In this thesis, the microstructure of organic photovoltaic APFO-3:PC₆₁BM bulk-heterojunction blends was examined. Earlier studies have focused on the microstructure after spin coating. This thesis aims to give a better insight into microstructural degradation as the films are annealed above the glass transition temperature, T_g, and the mixture approaches thermodynamic equilibrium. Electro- and photoluminescence studies indicate that the polymer and PC₆₁BM are intermixed on a scale shorter than the exciton diffusion length of 10 nm, even when annealed above T_g. The temperature stability of APFO-3:PC₆₁BM was also investigated with respect to the molecular weight of the polymer. The photovoltaic performance of these blends was found to be stable up to temperatures approaching the glass transition temperature, especially if a high molecular-weight APFO-3 grade was used.

The crystallization of PC₆₁BM was also investigated. Above T_g, PC₆₁BM crystallization was found to commence, albeit slowly at temperatures close to T_g. At elevated temperatures instead, micrometer sized crystals were observed to form. It was also noted that illumination while annealing APFO-3:PC₆₁BM thin films above T_g affected PC₆₁BM crystallization, the origin of which is so far unclear although chemical degradation could be largely excluded.

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39

Kilpatrick, Kaylon Ann. "Starvation induces Polycystic Ovarian Syndrome (PCOS) like symptoms in Drosophila melanogaster." Thesis, Mississippi College, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10128977.

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Polycystic Ovarian Syndrome (PCOS) is a metabolic and endocrine disorder that is the most common cause of infertility. PCOS can manifest itself as a long and short term disability and is characterized by insulin resistance (IR), hyperandrogenism, anovulation, hyperinsulinaemia and polycystic ovaries. Our lack of understanding of this disorder and its long term effects has complicated the treatment of the disorder; yet, it is clear that PCOS involves the intricate interaction between genetics, environments and behaviors. To study this disease, scientists have used various animal models. Since the Drosophila model for PCOS has only been postulated,in this work, we determined whether starvation along with the addition of steroid hormones would induce a PCOS-like disorder in D. melanogaster after 24 hour exposure.

In women with PCOS, testosterone levels and the expression of the androgen receptor are elevated. In fruit flies, ecdysone (E) and its “active” form, 20-hydroxyecdysone (20E), are homologous to the human testosterone and 20-hydroxytestosterone, respectively. This hormone is required for circadian cycles, molting, and maturation in insects. More specifically, this hormone is also located in ovarian tissue and aids in follicular development. The receptor for ecdysone is the ecdysone receptor (EcR). In this work, we examined the expression of the ecdysone receptor (EcR) upon starvation for up to 24 hours by immunofluorescence microcopy. Using qRT-PCR, we determined the levels of expression of genes usually associated with inflammation. Ovarian dysfunction was examined by measuring the fecundity of the females. Starvation increases the expression of the EcR and pro-inflammatory gene expression and decreases fecundity, suggesting that Drosophila melanogaster is a potentially useful model organism in the study of PCOS.

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40

Liu, Feng, Lei Zhang, Yue Zhang, Stefan C. B. Mannsfeld, Thomas P. Russell, and Alejandro L. Briseno. "Interpenetrating morphology based on highly crystalline small molecule and PCBM blends." Royal Society of Chemistry, 2014. https://tud.qucosa.de/id/qucosa%3A36260.

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We report the morphological characterization of triisopropylsilylethynyl-dibenzochrysene (TIPS-DBC:PCBM) blends, a bulk heterojunction (BHJ) solar cell system based on a highly crystalline small molecule donor. We found that processing the blends from a volatile solvent such as chloroform is beneficial in controlling the crystal size and phase separation of the donor–acceptor phases. When a less-volatile solvent such as chlorobenzene is used, large crystalline domains formed, exceeding the length scale suitable for BHJ solar cells. When the BHJ films are thermally annealed, enhanced domain purity is observed for the chloroform processed thin films, which led to an increased short circuit current in the devices.

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41

McCook, Judy G., Beth A. Bailey, Stacey L. Williams, Sheeba Anand, and Nancy E. Reame. "Differential Contributions of Polycystic Ovary Syndrome (PCOS) Manifestations to Psychological Symptoms." Digital Commons @ East Tennessee State University, 2014. https://dc.etsu.edu/etsu-works/7172.

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The purpose of this study was to investigate the relative contributions of previously identified Polycystic ovary syndrome (PCOS) manifestations (infertility, hirsutism, obesity, menstrual problems) to multiple psychological symptoms. Participants were 126 female endocrinology patient volunteers diagnosed with PCOS who completed a cross-sectional study of PCOS manifestations and psychological symptoms. Participants had significantly elevated scores on nine subscales of psychological symptoms. Menstrual problems were significantly associated with all symptom subscales as well as the global indicator, while hirsutism and obesity were significantly related to five or more subscales. After controlling for demographic factors, menstrual problems were the strongest predictor of psychological symptoms. Findings suggest features of excess body hair, obesity, and menstrual abnormalities carry unique risks for adverse psychologic symptoms, but menstrual problems may be the most salient of these features and deserve particular attention as a marker for psychological risk among women with PCOS.

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42

Wiberg, Anders. "Industrial design engineering study of PCM power plant." Thesis, KTH, Maskinkonstruktion (Inst.), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99317.

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En studie av en mindre kraftstation har gjorts i samarbete med Exencotech som forskar inom energi-återvinning. Deras kraftstation behandlar återvinning av värme från uppvärmt vatten som annars inte hade använts utan ansetts som ren förlust. Den studie som genomförts har gjorts på ett 100kW system med en så stor möjlighet till modularitet som är möjligt för anpassning och flexibel installation. Studien har även innefattat en 5kW prototyp och en modulär version av 100kW systemet upp till 0,5MW. Applikationen har som krav att framför allt minska volymen och storleken på systemet. Studien innefattar även en ergonomisk och användarvänlig inriktning vilket har påverkat designen och konstruktionen hos systemet. För att finna lämpliga lösningar och koncept till projektet har flera konceptgenereringar gjorts, liksom utvärderingar av lösningar. Som en förstudie till projektet har andra kraftstationer undersökts liksom deras kontroll och övervakningssystem. Ett koncept har tagits fram där en energicells modul (delen som utvinner energi) är designad att ge 50kW (initialt, dock kommer detta öka i takt med optimeringar) och tar upp 9m3, denna används tillsammans med en vattendistributionsmodul och en hydraulmodul. Då underhåll ska kunna genomföras på systemet har en speciell applikation tagits fram vilken underlättar arbetet med att komma åt ochkunna byta ut delar utan att operatörens ergonomiska påfrestningar blir för stora. Modulen är konstruerad för att kunna producera energi även om en mindre del av den stängs av för reparation. Energicellsmodulens hållfasthet har studerats och analyserats för att klara de laster som systemet ger. Ett grafiskt gränssnitt har även konceptuellt tagits fram för att ge ett förslag på hur det skulle kunna designas för att förbättra användarvänligheten och förståelsen i kraftstationen.
A study has been made of a smaller power station on behalf of Exencotech who is researching energy-recycling possibilities. Their station extracts energy from heated water which otherwise would have been discarded as a loss. The study has been conducted on a 100kW system with a high option of modularity which makes the system flexible and adjustable when installing. The study also treats a 5kW prototype and a modular version of the 100kW system up to 0,5MW. The application is designed to minimze the volume and weight of the system. It has also been analyzed ergonomically and in ways of its usability which has affected the design. To define appropriate solutions for the project several concepts has been conducted as well as evaluations of solutions. As a prestudy for the project other power stations has been looked at as well as control and surveillance systems. A concept has been developed where the energy cell module (the module extracting energy) is designed to give 50kW (initially, though optimization will heighten this), using 9m3 volume, this is used together with a water distribution module and a hydraulic module. As maintenance is meant to be easily performed, a special application has been developed which helps the procedure of access and extraction of desired parts whitout causing the operator too large ergonomical stress. The system is designed to be able to operate even when a part of it is shut down for repairs. The module has been constructed and dimensioned to withold the loads it would cause into the system. A graphic interface has also been designed to improve the usability and understanding of the system.

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43

Koh, Kwang-Ryul, Sang-Bum Lee, Taek-Joon Yi, and Whan-Woo Kim. "PC-Based Frame Optimizer Using Multiple PCM Files." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595769.

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ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada
Many engineers have tried to detect and correct erroneous data in telemetry communications. The best source selector can be used to combine data from two or more bit synchronizers to reduce frame error rates. An error-correcting code can be used as well. These techniques are absolutely helpful to obtain reliable telemetry data. However, some errors still remain and must be removed. This paper introduces the way to effectively merge multiple PCM files that are saved in different receiving sites, and shows nearly errorless data resulting from merging flight test data using a PC-based frame optimizer, which is a developed program.

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44

Fewer, Colm, and Sinbad Wilmot. "ENHANCING THE PCM/FM LINK - WITHOUT THE MATH." International Foundation for Telemetering, 2007. http://hdl.handle.net/10150/604575.

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ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada
Since the 1970s PCM/FM has been the dominant modulation scheme used for RF telemetry. However more stringent spectrum availability as well as increasing data rates means that more advanced transmission methods are required to keep pace with industry demands. ARTM Tier-I and Tier-II are examples of how the PCM/FM link can be enhanced. However these techniques require a significant increase in the complexity of the receiver/detector for optimal recovery. This paper focuses on a quantitative approach to improving the rate and quality of data using existing PCM/FM links. In particular ACRA CONTROL and BAE SYSTEMS set themselves the goal of revisiting the pre-modulation filter, diversity combiner and bit-sync. By implementing programmable adaptive hardware, it was possible to explore the various tradeoffs offered by modifying pulse shapes and spectral occupancy, inclusion of forward error correction and smart source selection. This papers looks at the improvements achieved at each phase of the evaluation.

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45

Kim, Jung Sup, and Myung Jin Jang. "Implementation of A 30-Channel PCM Telemetry Encoder." International Foundation for Telemetering, 2004. http://hdl.handle.net/10150/604960.

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International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California
The function of a PCM telemetry encoder, installed in moving vehicles such as automobiles, aircraft, missiles, and artillery projectiles, is to transform many physical variables, such as velocity, shock, temperature, vibration and pressure, into digital data. Also, the encoder is required to make a data frame composed of digital input signals and frame synchronous data. The framed data is supplied to the input of a transmitter. There are three critical considerations in developing a PCM telemetry encoder to be installed in an artillery projectile. The first is the performance consideration, such as sampling rate, data receiving rate and data transmission rate. The second is the size consideration due to the severely limited installation space in an artillery projectile and the last is the power consumption consideration due to limitations of the munition’s power supply. To meet these three considerations, the best alternative is a one-chip solution. Using a commercially available TMS320F2812 DSP chip, we have implemented a 30-channel PCM telemetry encoder to process randomized data frames, composed of 16-channel analog data, 14-channel digital data and 2 frame synchronization data per data frame, at 10Mbps transmission baud rate. This paper describes the structure of the 30-channel PCM telemetry encoder and its performance.

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46

Berdugo, Albert. "Migrating Airborne Instrumentation Systems from PCM to Network." International Foundation for Telemetering, 2008. http://hdl.handle.net/10150/606172.

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ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California
The majority of currently operating flight test programs around the world utilize PCM-based airborne instrumentation systems. Most instrumentation engineers are very comfortable with PCM-based data acquisition systems, and feel uncomfortable when talking about network implementations and the adoption of iNET. In order for these engineers to embrace this new technology, migrating from a PCM to network topology must be done in an evolutionary manner that provides for the preservation of capital investment while introducing new system concepts that enhance current instrumentation systems. This paper describes hardware components that enable instrumentation engineers to migrate their existing PCM-based instrumentation system to a network-based system. Several of these components are discussed to illustrate how they provide a controlled migration path to a network-based system. These components include time distribution, gateways, network data selectors, network switches, transmitters, transceivers, and recorders.

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47

Law, Eugene L. "PERFORMANCE OF PCM/FM DURING FREQUENCY SELECTIVE FADING." International Foundation for Telemetering, 1995. http://hdl.handle.net/10150/608409.

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International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada
This paper will discuss the performance of pulse code modulation (PCM)/frequency modulation (FM) during frequency selective fading. Frequency selective fading occurs when the attenuation in part of the frequency band of interest is much greater than in the rest of the band of interest. The frequency selective fading model used in this paper assumes that two paths with different delays exist between the transmitter and receiver (multipath). The two-path model was simulated in the laboratory and the effects of frequency selective fading on the radio frequency (RF) spectrum and on the waveforms at the output of the FM demodulator were measured. A mathematical model was also used to predict the effects of frequency selective fading. The predicted waveshapes are compared with the laboratory data. A simple demodulator which alleviates the effects of frequency selective fading on PCM/FM at moderate signal-to-noise ratios (SNRs) will be described. This demodulator is created by detuning the telemetry receiver by a frequency equal to approximately one-half of the intermediate frequency (IF) bandwidth and using the receiver’s amplitude modulation (AM) detector output rather than the FM detector output. The performance of this offset AM demodulator will be compared with the performance of an FM demodulator. Frequency selective fades measured in real-world environments will be also presented.

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48

Malone, Erle W., and Phillip Breedlove. "MIL-STD-1553 DATA BUS/PCM MULTIPLEXER SYSTEM." International Foundation for Telemetering, 1990. http://hdl.handle.net/10150/613443.

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International Telemetering Conference Proceedings / October 29-November 02, 1990 / Riviera Hotel and Convention Center, Las Vegas, Nevada
A telemetry system which integrates MIL-STD-1553 bus data, dual-simplex bus data, vehicle performance data, and environmental sensor data multiplexing involves many interfacing constraints. The engineering design considerations and hardware constraints required to implement this system are presented in this paper.

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49

Cunningham, Larry E. "A Programmable PCM Data Simulator for Microcomputer Hosts." International Foundation for Telemetering, 1990. http://hdl.handle.net/10150/613390.

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International Telemetering Conference Proceedings / October 29-November 02, 1990 / Riviera Hotel and Convention Center, Las Vegas, Nevada
Modem microcomputers are proving to be viable hosts for telemetry functions, including data simulators. A specialized high-performance hardware architecture for generating and processing simulator data can be implemented on an add-in card for the microcomputer. Support software implemented on the host provides a simple, high-quality human interface with a high degree of user programmability. Based on this strategy, the Physical Science Laboratory at New Mexico State University (PSL) is developing a Programmable PCM Data Simulator for microcomputer hosts. Specifications and hardware/software architectures for PSL’s Programmable PCM Data Simulator are discussed, as well as its interactive user interface.

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50

Comeau, Charles P., and Joseph F. Fisher. "SYSTEM FOR MULTIPLEXING PCM DATA WITH VIDEO DATA." International Foundation for Telemetering, 1990. http://hdl.handle.net/10150/613450.

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International Telemetering Conference Proceedings / October 29-November 02, 1990 / Riviera Hotel and Convention Center, Las Vegas, Nevada
When video signals are transmitted in a telemetry system it is usually necessary to simultaneously transmit other basic data such as temperature, pressure, audio, etc. In recent years these video/data telemetry systems have been implemented by transmitting the video through an analog link and the digital data through a parallel separate digital channel. Most recently it has become practical to transmit video signals by digital means, and this makes it possible to digitally multiplex the narrowband data with the wider band video. This results in a large reduction in system complexity since both data streams are transmitted over one channel rather than two. This paper describes a particular technical approach to multiplexing data and video which supports PCM data rates up to 60 kilobits per second. The approach has the advantage that PCM data is only embedded into the Video data as required. This results in the maximum utilization of the bandwidth of the transmission link. An airborne device has been developed which implements the video encoding and data multiplexing function. The paper describes the general multiplexing concept, the communication protocol, and the particular implementation. A description of the video encoding system, including the data multiplexing option, can be found in the “Draft Standard for Digital Transmission of Television Images” - RCC/TCG 209

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