Relevant bibliographies by topics / PMPTS

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'PMPTS'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "PMPTS"

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Noor, Syaharudin Shah Mohd, Muneera Esa, Ernawati Mustafa Kamal, and Aida Azlina Mansor. "Project manager personality traits towards project success: Moderated role of working experience in perspectives of small public construction projects in Malaysia." International Journal of Construction Supply Chain Management 10, no. 4 (December 31, 2020): 234–50. http://dx.doi.org/10.14424/ijcscm104020-234-250.

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Project success requires organisations and project managers to change strategies to satisfy stakeholders. Research into project success needs comprehensive analysis and approaches in various contexts, especially touching on non-technical skills (personality). This study aims to focus on examining the association of Project Manager Personality Traits (PMPTs) to the success of Small Public Construction Projects (SPCPs) and moderated by working experience. A survey was carried out to collect data using a structured Big Five Inventory (BFI) and Project Success Achieved Instrument (PSAI) questionnaire. Partial Least Squares Structural Equation Modeling (PLS-SEM) was used on a sample of 137 respondents for hypotheses testing and moderation effect analysis. Results show that PMPTs had a positive impact on the success of SPCPs. Conscientiousness (CT) and Agreeableness (AG) traits influence were more prominent when compared with other traits. While working experience does not moderate the relationship between PMPTs and the success of SPCPs. This study reflected the theoretical research of personality traits and their impact on the construction management industry. There have been limited studies of project success in the relationship with the BFI in the past, especially in the SPCPs context. The present study provides a basis for researchers interested in this area to examine further the use of BFI and PSAI as resources in other industries. Practically these findings may enable government or authorities to better align and suit project managers and their assigned project-based levels, where project managers are located in ministries overseeing small-scale projects. This study contributes theoretically to SPCPs literature by offering insights into project manager personality affecting project success and focus on selected agency in Malaysia.
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Patkowski, A., J. Gapinski, T. Pakula, and G. Meier. "Physical nature of complex structural relaxation in polysiloxane – PMpTS: α and α′ relaxations." Polymer 47, no. 20 (September 2006): 7231–40. http://dx.doi.org/10.1016/j.polymer.2006.05.065.

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Ker, De-Sheng, Sze Lei Pang, Noor Farhan Othman, Sekar Kumaran, Ee Fun Tan, Thiba Krishnan, Kok Gan Chan, Roohaida Othman, Maizom Hassan, and Chyan Leong Ng. "Purification and biochemical characterization of recombinant Persicaria minor β-sesquiphellandrene synthase." PeerJ 5 (February 28, 2017): e2961. http://dx.doi.org/10.7717/peerj.2961.

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Background Sesquiterpenes are 15-carbon terpenes synthesized by sesquiterpene synthases using farnesyl diphosphate (FPP) as a substrate. Recently, a sesquiterpene synthase gene that encodes a 65 kDa protein was isolated from the aromatic plant Persicaria minor. Here, we report the expression, purification and characterization of recombinant P. minor sesquiterpene synthase protein (PmSTS). Insights into the catalytic active site were further provided by structural analysis guided by multiple sequence alignment. Methods The enzyme was purified in two steps using affinity and size exclusion chromatography. Enzyme assays were performed using the malachite green assay and enzymatic product was identified using gas chromatography-mass spectrometry (GC-MS) analysis. Sequence analysis of PmSTS was performed using multiple sequence alignment (MSA) against plant sesquiterpene synthase sequences. The homology model of PmSTS was generated using I-TASSER server. Results Our findings suggest that the recombinant PmSTS is mainly expressed as inclusion bodies and soluble aggregate in the E. coli protein expression system. However, addition of 15% (v/v) glycerol to the protein purification buffer and removal of N-terminal 24 amino acids of PmSTS helped to produce homogenous recombinant protein. Enzyme assay showed that recombinant PmSTS is active and specific to the C15 substrate FPP. The optimal temperature and pH for the recombinant PmSTS are 30 °C and pH 8.0, respectively. The GC-MS analysis further showed that PmSTS produces β-sesquiphellandrene as a major product and β-farnesene as a minor product. MSA analysis revealed that PmSTS adopts a modified conserved metal binding motif (NSE/DTE motif). Structural analysis suggests that PmSTS may binds to its substrate similarly to other plant sesquiterpene synthases. Discussion The study has revealed that homogenous PmSTS protein can be obtained with the addition of glycerol in the protein buffer. The N-terminal truncation dramatically improved the homogeneity of PmSTS during protein purification, suggesting that the disordered N-terminal region may have caused the formation of soluble aggregate. We further show that the removal of the N-terminus disordered region of PmSTS does not affect the product specificity. The optimal temperature, optimal pH, Km and kcat values of PmSTS suggests that PmSTS shares similar enzyme characteristics with other plant sesquiterpene synthases. The discovery of an altered conserved metal binding motif in PmSTS through MSA analysis shows that the NSE/DTE motif commonly found in terpene synthases is able to accommodate certain level of plasticity to accept variant amino acids. Finally, the homology structure of PmSTS that allows good fitting of substrate analog into the catalytic active site suggests that PmSTS may adopt a sesquiterpene biosynthesis mechanism similar to other plant sesquiterpene synthases.
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Yang, Yi, Tian-Ling Ren, Yi-Ping Zhu, Xiao-Ming Wu, Ning-Xin Zhang, and Li-Tian Liu. "PMUTs for Handwriting Recognition." Integrated Ferroelectrics 69, no. 1 (January 1, 2005): 341–47. http://dx.doi.org/10.1080/10584580590899306.

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Alasatri, Suresh, Libor Rufer, and Joshua En-Yuan Lee. "AlN-on-Si Square Diaphragm Piezoelectric Micromachined Ultrasonic Transducer with Extended Range of Detection." Proceedings 2, no. 13 (November 27, 2018): 913. http://dx.doi.org/10.3390/proceedings2130913.

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We present aluminum nitride (AlN) on silicon (Si) CMOS-compatible piezoelectric micromachined ultrasonic transducers (pMUTs) with an extended detection range of up to 140 cm for touchless sensing applications. The reported performance surpasses the current state-of-art for AlN-based pMUTs in terms of the maximum range of detection using just a pair of pMUTs (as opposed to an array of pMUTs). The extended range of detection has been realized by using a larger diaphragm allowed by fabricating a thicker diaphragm than most other pMUTs reported to date. Using a pair of pMUTs, we experimentally demonstrate the capability of range-finding by correlating the time-of-flight (TOF) between the transmit (TX) and receive (RX) pulse. The results were obtained using an experimental setup where the MEMS chip was interconnected with a customized printed circuit board (PCB) using Al wire bonds.
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Crainic, Marius, Rui Loja Fernandes, and David Martínez Torres. "Poisson manifolds of compact types (PMCT 1)." Journal für die reine und angewandte Mathematik (Crelles Journal) 2019, no. 756 (November 1, 2019): 101–49. http://dx.doi.org/10.1515/crelle-2017-0006.

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AbstractThis is the first in a series of papers dedicated to the study of Poisson manifolds of compact types (PMCTs). This notion encompasses several classes of Poisson manifolds defined via properties of their symplectic integrations. In this first paper we establish some fundamental properties and constructions of PMCTs. For instance, we show that their Poisson cohomology behaves very much like the de Rham cohomology of a compact manifold (Hodge decomposition, non-degenerate Poincaré duality pairing, etc.) and that the Moser trick can be adapted to PMCTs. More important, we find unexpected connections between PMCTs and symplectic topology: PMCTs are related with the theory of Lagrangian fibrations and we exhibit a construction of a non-trivial PMCT related to a classical question on the topology of the orbits of a free symplectic circle action. In subsequent papers, we will establish deep connections between PMCTs and integral affine geometry, Hamiltonian G-spaces, foliation theory, orbifolds, Lie theory and symplectic gerbes.
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Sun, J. T., and Y. D. Huang. "Synthesis and Properties of Poly(Methylphenylsiloxane) Containing Methacryloyl Groups." Polymers and Polymer Composites 15, no. 6 (September 2007): 463–68. http://dx.doi.org/10.1177/096739110701500605.

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Methacryloxypropyltrimethoxysilane (MPTS) was used as the modified monomer to synthesise polymethylphenylsiloxane containing methacryloyl groups (PMPS-M) through co-hydrolysis and polycondensation with other silane monomers. The effects of MPTS on the synthesis and on the thermal and adhesive properties of PMPS-M were investigated by using Fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), differential thermogravimetry (DTG), scanning electron microscopy (SEM), and measurements of adhesion using a shear test. The results indicated that PMPS-M with good storage stability was synthesised successfully when the amount of MPTS was less than 8 wt%. PMPS-M had higher thermal stability than PMPS. The onset degradation temperature for PMPS-M containing 8 wt% MPTS was 518 °C, while it was 463 °C for PMPS. The improvement in thermal stability may be due to the protective effect of the methacryloyl groups, as observed under SEM. The shear strength of PMPS-M was 4.2 MPa when containing about 8 wt% MPTS, about 50% higher than that of PMPS. The shear strength of PMPS-M was also higher than that of PMPS at high temperatures.
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Osumi, Kazuoki, Yasushi Ozeki, Sonoko Saito, Yoshie Nagamura, Hideki Ito, Yukio Kimura, Hiroshi Ogura, and Shosaku Nomura. "Development and Assessment of Enzyme Immunoassay for Platelet-derived Microparticles." Thrombosis and Haemostasis 85, no. 02 (2001): 326–30. http://dx.doi.org/10.1055/s-0037-1615688.

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SummaryPlatelet-derived microparticles (PMPs) are released from platelets through the platelet activation by high shear stress, collagen, or calcium ionophore (A23187). PMPs are observed in patients with acute myocardial infarction, thrombotic thrombocytopenic purpura, hemolytic uremic syndrome, heparin-induced thrombocytopenia and other thrombotic disorders, but the importance of circulating PMPs in the pathogenesis of these diseases is still debated. Numbers of PMPs are usually determined by flowcytometry (FCM), but easier and reproducible PMP assay systems are needed. To develop a better ELISA for PMPs, we used antibodies against the platelet antigens anti-GPIb (NNKY5-5), anti-GPIIb/IIIa (NNKY2-11, anti-CD41), anti-GPIX (KMP-9), and anti-CD9 (NNKY1-19). PMPs were detected with all combinations of these antibodies, but the ELISA having the highest and most specific absorbance was obtained with a combination of KMP-9 (capture antibody) and NNKY5-5 (detecting antibody). PMPs in blood samples were measured by ELISA and FCM. ELISA correlated with PMPs quantitated by FCM. By shaking ELISA plates during incubation, nonspecific binding of platelets was eliminated. The level of PMPs was not increased in diabetes mellitus, thrombotic thrombocytopenic purpura, anti-phospholipid syndrome, or sepsis. The concentration of PMP was elevated in hemolytic uremic syndrome. Activated PMPs were absorbed to 0.8 m filter, but circulating PMPs were not absorbed. These results suggest that activated PMPs are likely to adhere to leukocytes or endothelial cells at the activation site and that the circulating form of PMPs are likely to be a residue of activated PMPs. To detect only the activated form of PMPs, a new ELISA needs to be developed, and it will likely use a combination of antibodies that detect platelet activation markers such as P-selectin (CD62P) or activated GPIIb/IIIa.
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Chen, Bao-An, Yue-Jiao Zhong, Cheng-Yin Huang, Feng Gao, Jian Chen, Chong Gao, Yun-Yu Sun, et al. "Platelet-Derived Microparticles Induce Angiogenesis In Vitro and In Vivo." Blood 110, no. 11 (November 16, 2007): 3901. http://dx.doi.org/10.1182/blood.v110.11.3901.3901.

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Abstract Objective: An attempt was made to investigate the effect of platelet-derived microparticles (PMPs) on the angiogenesis. Methods: Thrombin was adopted to activate the platelets to release PMPs. Flow cytometry(FCM)was adopted to evaluate the efficiencies of different concentrations of thrombin to produce PMPs and BCA was adopted to evaluate the content of PMPs. By the carrier of human umbilical vein cell line ECV-304 cultivated in vitro, investigate the effect of PMPs on the proliferation and apoptosis of human umbilical vein endothelial cells using MTT and FCM. PMPs were put into CAM and observe the effects of PMPs on angiogenesis in Chick embryo chorioallantoic membrane (CAM). Results: The efficiencies of PMPs activated by 1.0U/ml thrombin were 50.1%; PMPs induced proliferation of human umbilical vein cell line ECV-304 in a dose dependent manner. At the concentration of 40ug/ml PMPs, the proliferation rate of human umbilical vein cell line ECV-304 was as 1.8±0.3 times as control and there was no difference with the group of vascular endothelial growth factor (VEGF),which the proliferation rate was 1.9±0.5 times vs. control, p > 0.05;PMPs inhibited human umbilical vein cell line ECV-304 apoptosis. Compared with control group (apoptosis rate 9.4%±0.5%), apoptosis rate of PMPs (40μg/ml) is 3.9%±0.4%, which was significantly reduced, p<0.05. The addition of VEGF (10μl/ml) did not successfully prevented apoptosis of human umbilical vein cell line ECV-304 (apoptosis rate 8.0%±0.8%);After 72 h of incubation, showing an implant of PMPs by allantoic vessels developing radially towards it (implant) in a ’spoked-wheel’ pattern, at the concentration of 80μg/ml PMPs, number of vessel ramification is 112.5±11.31 and vessel area/CAM area is (6.19±1.29)%, compared with the VEGF(p>0.05). But there are not localized allantoic vessels developing in the NS control group(P<0.05). Conclusion: 1.0U/ml thrombin activated platelet could get the best efficiency of PMPs, which could stimulate proliferation of human umbilical vein cell line ECV-304 and inhibit its apoptosis and PMPs have certain promotive effect on the formation of capillary in chick chorioallantoic membranes.
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Kawasugi, Kazuo, Mizuho Noguchi, Haruko Tashiro, Moritaka Gotoh, Naoki Shirafuji, Juzo Matsuda, Yukihisa Miyazawa, and Tadatoshi Kinoshita. "Increased Levels of Platelet-Derived Microparticles in Patients with DIC." Blood 106, no. 11 (November 16, 2005): 4083. http://dx.doi.org/10.1182/blood.v106.11.4083.4083.

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Abstract Circulating microparticles of various cell types are present in healthy individuals and individuals in various disease states. In these microparticles, platelet-dreived microparticles (PMPs) may be implicated in thrombosis and haemostasis. However, little is known about the role of PMPs in patients with DIC. To investigate the role of PMPs, we measured plasma levels of PMPs in patients with sepsis-associated DIC (n=20) and acute promyelocytic leukemia (APL)-induced DIC (n=5). Plasma samples from those patients groups were assayed for PMPs levels by enzyme-linked immunosorbent assay (ELISA, Japan Immunoresearch Laboratory, Japan). Also, sP-selectin levels were determined by ELISA. The thrombin antithrombin complexes (TAT) levels were higher in both types of DIC patients as reported by others. In the septic patients with DIC, we found significant elevation in PMPs levels as compared with normal controls. However, we did not find any difference in plasma levels of PMPs in the APL patients with DIC. The sP-selectin levels were elevated in the septic patients with DIC. In early phase of septic patients with DIC, plasma levels of PMPs tend to be higher than that in late phase of septic patients with DIC.These results suggest that plasma levels of PMPs may be candidates for a marker of septic DIC. It appears that PMPs may contribute to the processes of septic DIC. Sepsis associated DIC APL with DIC Controls (n=20) *(P<0.05) significantly different controls PMPs 34.1 ± 50.1* 9.6 ± 3.6 6.5 ± 0.9 U/ml TAT 25.4 ± 15.5* 22.5 ± 15.3* <;3 μ g/ml
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Dissertations / Theses on the topic "PMPTS"

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Santana, Joseane de Andrade. "Utilização do planejamento fatorial completo aplicado ao estudo das propriedades térmicas dos nanocompósitos PMMA-co-PMPTS/ MMT H+." Universidade Federal de Sergipe, 2015. https://ri.ufs.br/handle/riufs/6161.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico
Since the first report from the Toyota research group, polymer/clay nanocomposites have attracted great interest and lots of attempts to prepare these nanocomposites. The addition of small contents of clay into polymer matrix exhibits potential increase in the physical and chemical properties such as flame retardance, barrier, flame and solvent resistances, thermal properties and advanced corrosion coatings. The study of polymer/clay nanocomposites are of fundamental importance due to a better understanding of the structural properties which optimizes its applications. The morphology of these nanocomposites depends on strongly of the synthesis conditions such as clay content and the synthetic method. Therefore, the use of the multivariable systems (factorial design of experiments) to evaluate the effect of experimental variables on the properties of the nanocomposites is of great relevance. In the present study, nanocomposites obtained from copolymerization of poly(methyl methacrylate), PMMA and poly(methacryloxy propryltrimethoxysilane), PMPTS forming PMMA-co-PMPTS and adding protonate montmorillonite (MMT H+) clay were prepared via in situ polymerization using benzoyl peroxide (BPO) as thermal initiator. Factorial design systems (four factors at two levels) were used to study the influence on effects of experimental variables (MMA, MPTS, MMT H+ and BPO) on the thermal properties of (PMMA-co-PMPTS)/MMT H+ nanocomposites using thermogravimetry. The structure and morphology were studied by X-ray diffraction, fourier transform infrared and transmission electronic microscopy. The study of thermal properties through the factorial design showed that the sample prepared by combining 150 mmol of MMA, 23 mmol MPTS, 0.186 mmol BPO and 0.150 g MMT H + (experiment 7, AM7) showed the highest depolymerization temperature (Td) (381 ° C). The value of the determination coefficient (R2) obtained by the statistical model indicated that the mathematical model of the first order explained 96.11% of the variability of Td and the correlation of predicted versus observed values was considered very strong, which presented a value of 0.9818. Along with the structural and morphological study it was possible to identify the partial compatibility between PMMA and MMT H +.
Desde os primeiros estudos relatados pelo grupo de pesquisa da Toyota na década de 90, nanocompósitos polímero/argila tem atraído grande interesse devido às suas propriedades e aplicações. A adição de pequenas quantidades de argila na matriz polimérica promove um potencial aumento nas propriedades físicas, químicas e térmicas, tais como retardância de chama, aumento da estabilidade térmica e revestimentos anticorrosivos. A morfologia desses nanocompósitos depende fortemente das condições de síntese, tais como o teor de argila, o método de síntese, o tipo de polímero, entre diversos outros. Desta forma, a utilização de um planejamento experimental multivariável para avaliar o efeito das variáveis experimentais sobre as propriedades dos nanocompósitos é de grande relevância. No presente estudo, nanocompósitos obtidos a partir da co-polimerização do poli(metacrilato de metila), PMMA e do poli metacrilóxi propril trimetoxisilano, PMTPS formando o PMMA-co-PMPTS com adição de argila montmorilonita protonada (MMT H+) foram preparados via polimerização in situ utilizando-se peróxido de benzoíla (BPO) como iniciador térmico. Sistemas de planejamento fatorial (quatro fatores em dois níveis) foram utilizados para estudar a influência das variáveis experimentais (MMA, MPTS, MMT H+ e BPO) sobre as propriedades térmicas de nanocompósitos (PMMA-co-PMPTS) / MMT H+ obtidos por termogravimetria. A estrutura e morfologia foram estudadas por difração de raios X, espectroscopia de absorção na região do infravermelho e microscopia eletrônica de transmissão. O estudo das propriedades térmicas por meio do planejamento fatorial mostrou que a amostra preparada pela combinação de 150 mmol de MMA, 23 mmol MPTS, 0,186 mmol BPO e 0,150 g MMT H + (experimento 7, AM7) apresentou o maior valor de Temperatura de despolimerização (Td) (381 °C). O valor do coeficiente de determinação R2 obtido pelo modelo estatístico indicou que o modelo matemático de primeira ordem explicou 96,11 % da variabilidade da Td, e a correlação dos valores preditos versus observados foi considerada fortíssima, o qual apresentou um valor de 0,9818. Com o estudo estrutural e morfológico dos nanocompósitos foi possível identificar a parcial compatilização entre o PMMA e a MMT H+.
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Beu, Jesse Garrett. "PMPT ? Performance Monitoring PEBS Tool." NCSU, 2006. http://www.lib.ncsu.edu/theses/available/etd-07262006-133558/.

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For many applications a common source of performance degradation is excessive processor stalling from high memory latencies or poor data placement. Performance degradations from program and memory hierarchy interactions are often difficult for programmers and compilers to correct due to a lack of run-time information or limited knowledge about the underlying problem. By leveraging the Pentium 4 processor's performance monitoring hardware, specific run-time information can be provided, allowing code modifications to reduce or even eliminate problematic code, resulting in reduced execution times.
Furthermore, many tools currently available to aid programmers are program counter centric. These tools point out which area of the code produce slowdowns, but they do not directly show where the problem data structures are. This is a common problem in programs that dynamically allocate memory. By creating a ?malloc-centric? tool, we can develop an interesting perspective of the memory behavior of the system, providing better insight into the sources of performance problems.
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Akgun, Ugur. "CMS HF calorimeter PMTS and Ξ+C lifetime measurement." Diss., University of Iowa, 2003. https://ir.uiowa.edu/etd/122.

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This thesis consists of two parts: In the first part we describe the Photomultiplier Tube (PMT) selection and testing processes for the Hadronic Forward (HF) calorimeter of the CMS, a Large Hadron Collier (LHC) experiment at CERN. We report the evaluation process of the candidate PMTs from three different manufacturers, the complete tests performed on the 2300 Hamamatsu PMTs which will be used in the HF calorimeter, and the details of the PMT Test Station that is in University of Iowa CMS Laboratories. In the second part we report the Cascade_c_+ lifetime measurement from SELEX, the charm hadro-production experiment at Fermilab. Based upon 301+-31 events from three different decay channels, by using the binned maximum likelihood technique, we observe the lifetime of Cascade_c_+ as 427+-31+-13 fs.
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Choi, Hongsoo. "Fabrication, characterization and modeling of K₃₁ piezoelectric micromachined ultrasonic transducers (pMUTs)." Online access for everyone, 2007. http://www.dissertations.wsu.edu/Dissertations/Fall2007/h_choi_091007.pdf.

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Dalakoti, Abhishek. "Optimization of PZT based thin films and piezoelectric micromachined ultrasonic transducers (pMUTs)." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Thesis/Fall2005/a%5Fdalakoti%5F083105.pdf.

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Jusic, Dragana. "Properties of LEDs for the Calibration of PMTs for the Daya Bay Project." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/36400.

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The flavor oscillations of neutrinos due to the mixing of mass eigenstates have been thoroughly studied in several experiments. One missing piece of the puzzle is the mixing angle θ13, which is being searched for by the Daya Bay experiment. Currently, the experiment is still in construction mode. Part of the experiment involves building effective detectors for atmospheric muons, resulting in accurate detection of antineutrinos from the source. To ensure accurate detection, we must effectively calibrate the PMTs with the use of carefully chosen and calibrated LEDs. This thesis details the study of several LEDs measured in an attempt to determine the properties of the most likely source for our calibration efforts. I measured the spectra of the LEDs meant for use in calibration, along with several others for the purpose of comparison of spectrum width and to find the evidence of fluorescence in the LEDs.
Master of Science
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Mancuso, Andrea. "Neutron Veto of XENONnT: final construction design of the system and extensive study and calibration of the PMTs." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/19854/.

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Numerous and convincing are the experimental evidences that led to the believe that most of the Universe is constituted by the so-called Dark Matter (DM). Its research has attracted many experimental efforts to the point of being considered the greatest mystery of physics. The most promising candidates to DM are generically named as WIMPs, an acronym for Weakly Interacting Massive Particles.The detectors that have reached the most competitive sensitivity levels have in common the characteristics of being built with ultrapure materials and located underground, shielded from cosmic rays. The XENON project,located at the Laboratori Nazionali del Gran Sasso (LNGS). The XENON1T experiment employed a dual-phase Time Projection Chamber (TPC) with 2t of xenon active mass. The next step of the detector is XENONnT, and is currently in the final assembling stage. With a bigger TPC containing 6t of xenon active mass, the main goal is to improve the detection potential for WIMPs by increasing the sensitivity of one order of magnitude in five years of data taking. That result can be achieved only with a substantial background lowering attained with a reduction of the contaminants of the xenon as well as of the detector materials and finally, with the Neutron Veto system (nVeto); the latter is a detector which tags the radiogenic neutrons coming from the materials of the experiment. The nVeto will employ the gadolinium-loaded water technology to significantly enhance the neutron capture cross-section. It will be instrumented with 120 8'' Hamamatsu R5912 photomultipliers (PMT) featuring high quantum efficiency and low radioactivity. Most of the work done to design and realize the nVeto is the argument of this thesis. In addition, an extensive study of the nVeto PMT performance has been done in a dedicated experimental setup at the LNGS. The complete description of the setup,as well as the results of the nVeto PMT tests, is the other big topic of this thesis.
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Kipnusu, Wykliffe Kiprop, Mohamed Elsayed, Reinhard Krause-Rehberg, and Friedrich Kremer. "Glassy dynamics of polymethylphenylsiloxane in one- and two-dimensional nanometric confinement." AIP Publishing, 2017. https://ul.qucosa.de/id/qucosa%3A21260.

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Glassy dynamics of polymethylphenylsiloxane (PMPS) is studied by broadband dielectric spectroscopy in one-dimensional (1D) and two-dimensional (2D) nanometric confinement; the former is realized in thin polymer layers having thicknesses down to 5 nm, and the latter in unidirectional (thickness 50 µm) nanopores with diameters varying between 4 and 8 nm. Based on the dielectric measurements carried out in a broad spectral range at widely varying temperatures, glassy dynamics is analyzed in detail in 1D and in 2D confinements with the following results: (i) the segmental dynamics (dynamic glass transition) of PMPS in 1D confinement down to thicknesses of 5 nm is identical to the bulk in the mean relaxation rate and the width of the relaxation time distribution function; (ii) additionally a well separated surface induced relaxation is observed, being assigned to adsorption and desorption processes of polymer segments with the solid interface; (iii) in 2D confinement with native inner pore walls, the segmental dynamics shows a confinement effect, i.e., the smaller the pores are, the faster the segmental dynamics; on silanization, this dependence on the pore diameter vanishes, but the mean relaxation rate is still faster than in 1D confinement; (iv) in a 2D confinement, a pronounced surface induced relaxation process is found, the strength of which increases with the decreasing pore diameter; it can be fully removed by silanization of the inner pore walls; (v) the surface induced relaxation depends on its spectral position only negligibly on the pore diameter; (vi) comparing 1D and 2D confinements, the segmental dynamics in the latter is by about two orders of magnitude faster. All these findings can be comprehended by considering the density of the polymer; in 1D it is assumed to be the same as in the bulk, hence the dynamic glass transition is not altered; in 2D it is reduced due to a frustration of packaging resulting in a higher free volume, as proven by ortho-positronium annihilation lifetime spectroscopy.
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Hamrin, Erik. "A Heuristic Downside Risk Approach to Real Estate Portfolio Structuring : a Comparison Between Modern Portfolio Theory and Post Modern Portfolio Theory." Thesis, KTH, Bygg- och fastighetsekonomi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-89812.

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Portfolio diversification has been a subject frequently addressed since the publications of Markowitz in 1952 and 1959. However, the Modern Portfolio Theory and its mean variance framework have been criticized. The critiques refer to the assumptions that return distributions are normally distributed and the symmetric definition of risk. This paper elaborates on these short comings and applies a heuristic downside risk approach to avoid the pitfalls inherent in the mean variance framework. The result of the downside risk approach is compared and contrasted with the result of the mean variance framework. The return data refers to the real estate sector in Sweden and diversification is reached through property type and geographical location. The result reveals that diversification is reached differently between the two approaches. The downside risk measure applied here frequently diversifies successfully with use of fewer proxies. The efficient portfolios derived also reveals that the downside risk approach would have contributed to a historically higher average total return. This paper outlines a framework for portfolio diversification, the result is empirical and further research is needed in order to grasp the potential of the downside risk measures.
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Eschbach, Stefan [Verfasser], Stefan [Akademischer Betreuer] Funk, and Stefan [Gutachter] Funk. "A detailed characterization of PMTs for the CTA project and analysis of first FlashCam prototype data / Stefan Eschbach ; Gutachter: Stefan Funk ; Betreuer: Stefan Funk." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2019. http://d-nb.info/1194236421/34.

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Books on the topic "PMPTS"

1

Levi, Michael I. PMPs for the MRCPsych part II. Dordrecht: Kluwer Academic, 1992.

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Kependidikan, Indonesia Direktorat Jenderal Peningkatan Mutu Pendidikan dan Tenaga. Program unggulan Ditjen PMPTK APBN, tahun 2008: Disajikan pada rembug nasional pendidikan 2008. [Jakarta]: Direktorat Jenderal Peningkatan Mutu Pendidik dan Tenaga Kependidikan, 2008.

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Prescription drug abuse and diversion: The role of prescription drug monitoring programs : hearing before the Committee on Health, Education, Labor, and Pensions, United States Senate, One Hundred Eighth Congress, second session, on examining drug abuse prevention issues, focusing on the role of prescription drug monitoring programs, and federal privacy standards for PMPS, September 23, 2004. Washington: U.S. G.P.O., 2005.

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Wright, A. G. Timing with PMTs. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199565092.003.0008.

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The timing capability of photomultipliers (PMTs) can be inferred from the basic laws of electron motion. The relationships between time dispersion and field strength, initial electron energy, angle of emission, and electrode spacing follow from these laws. For conventional PMTs, the major contribution to dispersion arises from the cathode-to-first-dynode region. The field gradient at the cathode primarily determines the timing. This is verified by examining the electron motion in non-uniform electric fields. The contribution from interdynode transitions is small for linear focussed PMTs. Monte Carlo simulations of output waveforms from scintillators agree with measurements. The performance of threshold, zero crossing, and constant fraction (CF) discriminators is examined, revealing the superiority of the CF types. Two organizations have made detailed timing measurements, some of which show sub-nanosecond jitter. Proximity focussed PMTs from Hamamatsu confirm time dispersion measured in picoseconds.
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Wright, A. G. Electronics for PMTs. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199565092.003.0014.

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Photomultipliers (PMTs) are current generators characterized by high gain, wide bandwidth, and high-output impedance. The role of preamplifiers and amplifiers is generally one of conditioning the PMT output. Either the time signature is preserved using a fast voltage preamplifier, or a voltage proportional to the charge in each event is generated with a charge-sensitive preamplifier. Both preamplifier types are generally of low-output impedance, suitable for driving matched coaxial cable. Preamplifiers and amplifiers are available as modular units (e.g. nuclear instrument module), stand alone, or are incorporated in a module including the PMT. Shaping amplifiers are used to further condition preamplifier signals, using integrating and differentiating circuits—particularly relevant to scintillation spectrometers. Discrete-component amplifiers and current-feedback operational amplifiers serve fast applications. Digital signal processing has overtaken many of the classical electronic techniques involving resolution and in pulse shape discrimination. Electronic circuitry for generating fast LED pulses is discussed.
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Pmp's for the Mrcpsych, Pt.2. Springer, 1992.

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Wright, A. G. The optical interface to PMTs. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199565092.003.0003.

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The optical interface between a light source and a detector is important. In most practical realizations the aim should be to collect the maximum light possible. Lens systems seldom do this efficiently, especially where the light source is diffuse. Underlying any attempt at concentrating or guiding light is subject to a fundamental limitation referred to as étendue (phase space cannot be squeezed). Light collection from small volume scintillators of high refractive index may approach 50 %, while collection from large-area scintillators is typically less than a few per cent. Incorporation of wavelength-shifting light guides and fibres leads to enhanced performance. Efficiency measurements by the author in terms of photoelectrons per keV are presented for selected configurations. Optical recycling derived from total internal reflection provides enhancement in effective quantum efficiency by a factor of up to 10. Concepts such as escape cones, adiabatic light guides, and trapped light are covered in detail.
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Wright, A. G. The Photomultiplier Handbook. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199565092.001.0001.

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This handbook is aimed at helping users of PMTs who are faced with the challenge of designing sensitive light detectors for scientific and industrial purposes. The raison d’être for photomultipliers (PMTs) stems from four intrinsic attributes: large detection area, high, and noiseless gain, and wide bandwidth. Detection involves a conversion process from photons to photoelectrons at the photocathode. Photoelectrons are subsequently collected and increased in number by the action of an incorporated electron multiplier. Photon detection, charge multiplication, and many PMT applications are statistical in nature. For this reason appropriate statistical treatments are provided and derived from first principles. PMTs are characterized by a range of photocathodes offering detection over UV to infra-red wavelengths, the sensitivities of which can be calibrated by National Laboratories. The optical interface between light sources and PMTs, particularly for diffuse or uncollimated light, is sparsely covered in the scientific literature. The theory of light guides, Winston cones, and other light concentrators points to means for optimizing light collection subject to the constraints of Liouville’s theorem (étandue). Certain PMTs can detect single photons but are restricted by the limitations of unwanted background ranging in magnitude from a fraction of a photoelectron equivalent to hundreds of photoelectrons. These sources, together with their correlated nature, are examined in detail. Photomultiplier biasing requires a voltage divider comprising a series of resistors or active components, such as FETs. Correct biasing provides the key to linear operation and so considerable attention is given to the treatment of this topic. Electronic circuits and modules that perform the functions of charge to voltage conversion, pulse shaping, and impedance matching are analysed in detail.
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Wright, A. G. Why photomultipliers? Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199565092.003.0001.

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Photon detectors transform information, carried by light, to an electrical analogue. Signals contain information on the time of occurrence and the intensity in terms of the number of photons involved. Photon rates may be constant with time, slowly varying, or transient in the form of pulses. The time response is specified in terms of some property of the pulse shape, such as its rise time, or it may be expressed in terms of bandwidth. Light detector applications fall into two categories: imaging and non-imaging; however, only the latter are considered. Detectors can be further divided into vacuum and solid state devices. Vacuum devices include photomultipliers (PMTs), microchannel plate PMTs (MCPPMTs), and hybrid devices in which a silicon device replaces the discrete dynode multiplier. PIN diodes, avalanche photodiodes (APDs), pixelated silicon PMTs (SiPMs), and charge-coupled devices (CCDs) are examples of solid state light detectors.
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Sabharwal, Nikant, Parthiban Arumugam, and Andrew Kelion. The gamma camera. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198759942.003.0003.

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Nuclear cardiology imaging is traditionally performed on an Anger gamma camera. Its key component is a large, flat, circular or rectangular sodium iodide crystal, activated by non-radioactive thallium (NaI(Tl)). The side of the crystal facing the patient is covered with a lead collimator, while the side away from the patient is viewed by an array of photomultiplier tubes (PMTs). This chapter provides detail on the gamma camera, including information on crystals and collimators, PMTs, and electronics. Important measures of gamma camera performance parameters and quality control are covered in detail, and a section on dedicated solid-state cardiac gamma cameras is included.
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Book chapters on the topic "PMPTS"

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Steiner, G., and C. Zimmerer. "Poly(γ-methacryloxypropyltrimethoxysilane) (PMPTS)." In Polymer Solids and Polymer Melts – Definitions and Physical Properties I, 914–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32072-9_101.

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Opschoor, J. B. "Economic Instrument for Controlling PMPs." In Persistent Pollutants: Economics and Policy, 163–76. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3372-2_18.

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Pearce, David. "Cost-Benefit Analysis and PMPs." In Persistent Pollutants: Economics and Policy, 83–91. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3372-2_9.

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dos Reis, Nélio Fernando, Cristina Corrêa de Oliveira, Liliam Sayuri Sakamoto, André Gomes de Lira, and Jair Minoro Abe. "Paraconsistent Method of Prospective Scenarios (PMPS)." In Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications, 76–84. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-662-44739-0_10.

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Barde, Jean-Philippe. "Economic Instruments for Controlling PMPs: A Comment." In Persistent Pollutants: Economics and Policy, 177–82. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3372-2_19.

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Fisher, Jonathan. "Economic Impacts of Controlling PMPs: A Comment." In Persistent Pollutants: Economics and Policy, 137–43. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3372-2_14.

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Yong-ran, Chen, Qi Xing-yun, Qian Yue, and Dou Wen-hua. "PMPS(3): A Performance Model of Parallel Systems." In Advances in Computer Systems Architecture, 344–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11859802_28.

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Govers, H., J. H. F. Hegeman, and H. Aiking. "Long-Term Environmental and Health Effects of PMPs." In Persistent Pollutants: Economics and Policy, 21–32. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3372-2_3.

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Pethig, RÜDiger. "Problems of Irreversibility in the Control of PMPs." In Persistent Pollutants: Economics and Policy, 93–103. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3372-2_10.

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Lloyd, R. "Some Ecotoxicological Problems Associated with the Regulation of PMPs." In Persistent Pollutants: Economics and Policy, 203–9. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3372-2_22.

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Conference papers on the topic "PMPTS"

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Yoshida, Hiro, Takahiro Inoue, and Yinsheng Li. "An Analysis of Impact Structural Damages of Ceramic Blades." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90167.

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A series of finite element analyses with elastic assumption were made to predict the plausible damage behavior of axial and radial type ceramic blades. Present analysis showed that the stress peaking process was strongly influenced by the interaction of various stress waves. Peaks of the maximum principal tensile (PMPT) stress are considered to lead to the structural damages. In the axial blade, locations of the PMPT stress qualitatively corresponded well with the damaged parts of the blade observed in the experiment. The maximum PMPT stress appeared on the suction (impact) surface and the averaged PMPT stress value on this surface was roughly twice as large as that in the pressure surface. On the radial blade, the maximum PMPT stress occurred in the pressure surface, contrary to the axial blade. Its value was remarkably larger than the initial impact stress due to the complex wave interactions. In spite of the elastic assumption, the present finite element analysis is useful in understanding structural fracture behavior.
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Ruan, Yanhua, and Peter K. Willett. "Maneuvering PMHTs." In International Symposium on Optical Science and Technology, edited by Oliver E. Drummond. SPIE, 2001. http://dx.doi.org/10.1117/12.492781.

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Roy, Kaustav, Harshvardhan Gupta, Vijayendra Shastri, Ajay Dangi, and Rudra Pratap. "Fluid Density Sensing Using PMUTs." In 2018 IEEE Sensors. IEEE, 2018. http://dx.doi.org/10.1109/icsens.2018.8589662.

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Bedier, Mohammed, Gwenael Bechet, and Franck Badets. "Analytical Compact Model for PMUTs Interfaces." In 2018 25th IEEE International Conference on Electronics, Circuits and Systems (ICECS). IEEE, 2018. http://dx.doi.org/10.1109/icecs.2018.8617862.

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Pala, Sedat, Zhichun Shao, Yande Peng, and Liwei Lin. "Ultrasond-Induced Haptic Sensations Via PMUTS." In 2021 IEEE 34th International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2021. http://dx.doi.org/10.1109/mems51782.2021.9375455.

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"Characterization of multi-pixel PMTs." In 2000 IEEE Nuclear Science Symposium. Conference Record. IEEE, 2000. http://dx.doi.org/10.1109/nssmic.2000.949275.

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Mehdizadeh, Emad, and Gianluca Piazza. "AlN on SOI pMUTs for wireless communication." In 2017 IEEE International Ultrasonics Symposium (IUS). IEEE, 2017. http://dx.doi.org/10.1109/ultsym.2017.8092939.

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Suyama, Motohiro, and Kimitsugu Nakamura. "Recent Progress of Photocathodes for PMTs." In International Workshop on New Photon Detectors. Trieste, Italy: Sissa Medialab, 2010. http://dx.doi.org/10.22323/1.090.0013.

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Mehdizadeh, Emad, and Gianluca Piazza. "AlN on SOI pMUTs for ultrasonic power transfer." In 2017 IEEE International Ultrasonics Symposium (IUS). IEEE, 2017. http://dx.doi.org/10.1109/ultsym.2017.8092630.

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Shao, Zhichun, Sedat Pala, Yue Liang, Yande Peng, and Liwei Lin. "A Single Chip Directional Loudspeaker Based on PMUTS." In 2021 IEEE 34th International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2021. http://dx.doi.org/10.1109/mems51782.2021.9375191.

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Reports on the topic "PMPTS"

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Va'vra, Jaroslav. Corrosion of Glass Windows in DIRC PMTs. Office of Scientific and Technical Information (OSTI), July 2001. http://dx.doi.org/10.2172/787189.

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Akgun, Ugur. CMS HF calorimeter PMTs and Ξ$+\atop{c}$ lifetime measurement. Office of Scientific and Technical Information (OSTI), December 2003. http://dx.doi.org/10.2172/15020228.

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Field, C. Timing and Detection Efficiency Properties of Multi-Anode PMTs for a Focusing DIRC. Office of Scientific and Technical Information (OSTI), October 2003. http://dx.doi.org/10.2172/826537.

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Donald F. Duttlinger and E. Lance Cole. MENTOR-BASED EFFORT TO ADVANCE IMPLEMENTATION OF PREFERRED MANAGEMENT PRACTICES (PMPS) FOR OIL PRODUCERS IN SOUTH MIDCONTINENT (OKLAHOMA/ARKANSAS) AND WEST COAST (CALIFORNIA) REGIONS. Office of Scientific and Technical Information (OSTI), December 2004. http://dx.doi.org/10.2172/837885.

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