Relevant bibliographies by topics / Holes in module

Academic literature on the topic 'Holes in module'

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Published: 6 September 2023

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Journal articles on the topic "Holes in module"

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Dyaksa, Gilang Argya, Nur Arfian, Herianto Herianto, Lina Choridah, and Yosef Agung Cahyanta. "Smoothing Module for Optimization Cranium Segmentation Using 3D SlicerSmoothing Module for Optimization Cranium Segmentation Using 3D Slicer." International Journal of Applied Sciences and Smart Technologies 5, no. 1 (June 15, 2023): 75–88. http://dx.doi.org/10.24071/ijasst.v5i1.6300.

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Anatomy is the most essential course in health and medical education to study parts of human body and also the function of it. Cadaver is a media used by medical student to study anatomical subject. Because of limited access to cadaver and also due to high prices, this situation makes it necessary to develope an alternative anatomical education media, one of them is the use 3D printing to produce anatomical models. Before 3D Print the cranium, it is necessary to do the segmentation process and often the segmentation result is not good enough and appear a lot of noises. The purpose of this research is to optimize a 3D cranium based on DICOM (digital imaging and communications in medicine) data processing using the smoothing modules on 3D Slicer. The method of this research is to process the Cranium DICOM data using 3D Slicer software by varying the 5 types of smoothing modules. The results with default parameter fill holes and median have better results compared to others. Kernel size variations are performed for smoothing module fill holes and medians. The result is fill holes get optimal segmentation results using a kernel size of 3 mm and the median is 5 mm.
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Uddin, S. M. Nadim, and Yong Ju Jung. "Global and Local Attention-Based Free-Form Image Inpainting." Sensors 20, no. 11 (June 4, 2020): 3204. http://dx.doi.org/10.3390/s20113204.

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Deep-learning-based image inpainting methods have shown significant promise in both rectangular and irregular holes. However, the inpainting of irregular holes presents numerous challenges owing to uncertainties in their shapes and locations. When depending solely on convolutional neural network (CNN) or adversarial supervision, plausible inpainting results cannot be guaranteed because irregular holes need attention-based guidance for retrieving information for content generation. In this paper, we propose two new attention mechanisms, namely a mask pruning-based global attention module and a global and local attention module to obtain global dependency information and the local similarity information among the features for refined results. The proposed method is evaluated using state-of-the-art methods, and the experimental results show that our method outperforms the existing methods in both quantitative and qualitative measures.
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Alizadeh, Rana, Kaoru Uema Porter, Tom Cannon, and Simon S. Ang. "Fabrication of Ceramic Interposers for Module Packaging." Journal of Microelectronics and Electronic Packaging 17, no. 2 (April 1, 2020): 67–72. http://dx.doi.org/10.4071/imaps.1114553.

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Abstract In this study, low-temperature cofired ceramic (LTCC) and 3D-printed ceramic interposers are designed and fabricated for a double-sided power electronic module. The interposer acts as electrical insulation between two direct-bond copper (DBC) power substrates as well as mechanical support to evenly distribute the weight of the top DBC substrate onto the entire bottom DBC substrate instead of directly onto the bare power semiconductor die. A novel LTCC fabrication process for 14 layers of green tapes with premachined recesses and holes is developed. A similar interposer is 3D printed using a ceramic resin. Finally, the fabricated LTCC and 3D-printed interposers are compared.
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Wang, Feng, Jian Jun Luo, Ming Li, and Yue Deng. "A Study on the Technical Method of Drilling Micro Holes on New CMC-SiC with Femtosecond Laser." Applied Mechanics and Materials 543-547 (March 2014): 3924–30. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.3924.

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To solve the difficulties of processing micro holes on the CMC-SiC, femtosecond laser was used as the drilling tool in this paper. And a new type of laser beam scanning module was studied. The study confirms the feasibility of finishing the processing of micro holes whose diameter is less than 2mm on the new CMC-SiC. And the preliminary optimization of processing parameters is completed. According to the experimental results, the important factors affecting the quality of the micro holes were analyzed, and the factors are the processing power and the scanning speed. The results also show that the femtosecond laser processing technology can solve the difficulties of drilling mirco holes on the new CMC-SiC in our countrys aerospace field.
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Chu, Wei Cheng, Chin Pan Huang, Tien Wei Shyr, Li Chou Chen, and Shu Ping Chiu. "Design and Evaluation of Spinneret Module with Line-Type and Multi-Holes of Electro-Spun." Applied Mechanics and Materials 311 (February 2013): 243–48. http://dx.doi.org/10.4028/www.scientific.net/amm.311.243.

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For the wide application in the field of filtration and bio-medicine, the purpose of this study is to design a spinneret module of electro-spun which can produce composite nonwoven with sub-micrometer fiber continually. Applying the principle of melt-blown, a spinneret module with line-type and multi-holes which was assembled with small beads and filtering net, was designed. In order to construct a continual electro-spun production line, a traversal device was designed to control the traverse-motion of spinneret module for the even lapping and a stainless plate was adopted as collecting plate. In condition of 41KV working voltage, 0.3573 mL/min throughput and 42cm CSD (Capillary-Screen-Distance), a continual PEO nonwoven can be produced with average fiber diameter of 576nm and of CV% 13.4%. To a sampling area of 10cm×10cm and basis weight of 7.257 g/m2 electro-spun nonwoven, the CV% of gray level of its image is 2% and its filtration efficiency is up to 91.2% with pressure drop 13.8mm-H20 by TSI 8130 (32LPM, 5% NaCl).
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Suwannasuk, Sirisuk, Witsarut Sriratana, and Riichi Murayama. "Error Analysis of 4-Crossing Hall Sensor with Frequency Domain in Measurement of Material Imperfection." Applied Mechanics and Materials 781 (August 2015): 471–74. http://dx.doi.org/10.4028/www.scientific.net/amm.781.471.

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This study presents a methodology of frequency domain for analysis the output signal of the sensor device in order to enhancing the performance and resolution in measurement of a sensor module. However, in this case used the new sensor module namely 4-crossing Hall sensor, which was designed by the assembling of four permanent magnets with four Hall generators as a sensor device. An analysis of frequency domain in this study aims to develop a new non-destructive measurement using a new sensor module as a sensor device in order to measure the imperfection of metal materials using, in some cases, the methodology of non-destructive inspection. This process was performed by transforming the values in the pattern of the output voltage from sensor device, which was amplified by the instrumentation amplifier into the time domain by the voltage to frequency converter and then transformed into the frequency domain based on the principle of Fourier transform. It was found that an analysis by frequency domain is the methodology which can be explicitly applied to detect the dimension of holes on a metal surface. In an experiment, the principle of frequency domain can precisely determine and distinguish the depth of drilled holes with 1 mm difference.
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Kanna, Rajesh, and Manikandan Saravana. "Intelligent Vision Inspection System for IC Engine Head: An ANN Approach." Advanced Materials Research 479-481 (February 2012): 2242–45. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.2242.

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A machine vision system based on Artificial Neural Network (ANN) for inspection of IC Engine block was developed to identify the misalignment and improper diminishing of holes in the IC Engine block. The developed machine vision and ANN module is compared with the commercial MATLAB® software and found results were satisfactory. This work is broadly divided into four stages, namely Intelligent inspection module, Machine Vision module, ANN module and Expert system module. A system with a camera was used to capture the various segments of head of the IC Engine block. The captured bitmap format image of IC Engine block has to be filtered to remove the noises present while capturing and the size is also altered using SPIHT method to an acceptable size and will be given as input to ANN. Generalized ANN with Back-propagation algorithm was used to inspect the IC Engine block. ANN has to be trained to provide the inspected report.
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Rantala, Antti, and Peter H. Johansson. "Metallicity evolution in mergers of disk galaxies with black holes." Proceedings of the International Astronomical Union 11, S308 (June 2014): 490–91. http://dx.doi.org/10.1017/s1743921316010498.

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AbstractWe use the TreeSPH simulation code Gadget-3 including a recently improved smoothed particle hydrodynamics (SPH) module, a detailed metallicity evolution model and sophisticated subresolution feedback models for supernovae and supermassive black holes in order to study the metallicity evolution in disk galaxy mergers. In addition, we examine the simulated morphology, star formation histories, metallicity gradients and kinematic properties of merging galaxies and merger remnants. We will compare our simulation results with observations of the early-type Centaurus A galaxy and the currently colliding Antennae galaxies.
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Soussan, L., M. Alquier, C. Guigui, S. Alfenore, S. Mathe, and C. Cabassud. "Characterization of the inline virus removal performances in hollow fibre modules by a new tracer electrochemically detected." Water Supply 13, no. 2 (March 1, 2013): 507–14. http://dx.doi.org/10.2166/ws.2013.054.

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In a previous work, an innovative and patented method was presented, that is based on a new virus surrogate. This surrogate is an enzyme-labelled MS2 phage that is directly detectable and quantifiable by amperometry thanks to its induced enzymatic activity. In this work, this method was used to characterize the dynamics of virus removal in micromodules as a function of the membrane defect size and the transmembrane pressure (TMP). Experiments were performed at lab scale with an integer module and with modules made with the same fibres with calibrated holes (50, 100, 150 μm) made in one of the module fibres with the laser method. Results showed first that the new method allowed diagnosing a 50 μm hole on the fibre of a micromodule. It was also demonstrated that, whatever the applied TMP, removal performances are all the more better that the defect size is smaller. Moreover, whatever the hole size, a TMP step rise from 1 to 1.5 bar during tracer filtration led to no significant change in the observed removal but improved the intrinsic removal performances.
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Hudaya Muna Putra, Sigit Basuki Wibowo, Dyonisius Dony Ariananda, and Wahyu Dewanto. "Performance of Energy Detection Spectrum Sensing for Cognitive Radio Using GNU Radio." Jurnal Nasional Teknik Elektro dan Teknologi Informasi 11, no. 3 (August 25, 2022): 199–207. http://dx.doi.org/10.22146/jnteti.v11i3.3757.

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The increasing number of wireless communication applications has led to spectrum scarcity problems. On the other hand, the current system in allocating the spectrum frequency is inefficient. To mitigate this issue, a cognitive radio (CR) system is proposed. CR is a smart radio that is able to sense the environment, locate the spectrum holes, and adapt its transmission parameter to exploit the existing spectrum holes. This underlines the importance of the spectrum sensing module to enable the operation of the CR system. The objective of the spectrum sensing module is to achieve the best utility from the available spectrum frequency. CR system is implemented in the unlicensed secondary users allowed to rent the spectrum currently not used by primary users (PU). In this paper, energy-detection-based spectrum sensing is implemented on the GNU Radio platform. We first implement the power spectral density (PSD) estimation method based on the periodogram by exploiting the Embedded Python block facility on the GNU Radio. Next, we implement the spectrum sensing decision module in the GNU Radio, which compares the PSD estimate of the PU signals corrupted by noise with a threshold. The PU signal is simulated as a bandpass random process occupying a particular frequency band. The spectrum sensing decision module is developed to allow the computation of the probability of detection (PD) and the probability of false alarm (PFA), which is performed by exploiting the Embedded Python block. One indicator to evaluate the performance of the spectrum sensing module is the receiver operating characteristic curve based on the computed PD and PFA on the GNU Radio. We evaluate the performance of the spectrum sensing for different SNRs and thresholds. The result shows that the energy-detection-based spectrum sensing is able to locate the existence of the PU when the signal-to-noise ratio (SNR) is sufficiently high.
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Dissertations / Theses on the topic "Holes in module"

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Vika, Marina. "Supermassive black holes : the local supermassive black hole mass function." Thesis, University of St Andrews, 2012. http://hdl.handle.net/10023/2553.

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Over recent years there has been an increase of the number of secure supermassive black hole (SMBH) detections. These SMBH measurements have lead astronomers to establish well defined empirical relationships between the SMBH mass and some of the properties of the host galaxy. The number of galaxies with SMBH mass measurements is currently limited to about 100. One approach of expanding the study of the SMBH is to use the empirical relations for estimating M[subscript(bh)] for larger samples of galaxies. The investigation of the SMBH population (or SMBH mass function) for large sample of galaxies in the nearby universe has helped to constrain the SMBH and the galaxy evolution. Previous estimates of the SMBH mass function at low redshift were produced mainly by combining the measurements of the galaxy luminosity or velocity function with one of the SMBH scaling relations. In the first part of the thesis I will present an independent construction of the nearby supermassive black hole mass function by applying the optical M[subscript(bh)]–L relation onto the Millennium Galaxy Catalogue (MGC). Additionally, in the second part I will provide photometric analysis of all UKIDSS galaxies for which SMBH masses have been measured. I will derive composite profiles of brightness, ellipticity and position angles of each galaxy. I will show that the Sérsic function fits the brightness profile of the majority of the elliptical galaxies and the bulge of disk galaxies and I will provide alternative multi-component fits when necessary. Then these photometric parameters will be used for constructing the M[subscript(bh)]–L relation in the near-IR and to investigate the M[subscript(bh)]–n relation. In the third part I will construct the near-IR SMBH mass function for the Galaxy and Mass Assembly (GAMA) survey. For this purpose I will apply the newly derived M[subscript(bh)]–L relation onto an elliptical subsample of K-band images. The advantage of this SMBH mass function is that during the M[subscript(bh)]–L construction I used the same quality images and techniques used on the GAMA survey. Apart from the M[subscript(bh)]–L relation, the M[subscript(bh)]–sigma relation was used as an alternative approach for a subsample of galaxies for which the velocity dispersions were available. Furthermore, I employed both local SMBH mass functions (MGC & GAMA) for estimating the SMBH mass density at redshift zero and accounted for the dependence of the total SMBH density on the look-back time by comparing with semi-analytic SMBH mass functions. Finally, from the SMBH mass density I estimated the baryon fraction that is locked into SMBHs.
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Azong, Julius Awah. "Corporal punishment of children in Nigerian homes." Thesis, University of the Western Cape, 2011. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_2234_1360932481.

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GIACCONE, PAOLO. "BLACK HOLES IN SUPERGRAVITY AND HAMILTON-JACOBI FORMALISM." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2506153.

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In my thesis we have addressed the issue of the first order description of generic stationary axisymmetric black holes in supergravity. To this the end we extended the extend the Hamilton-Jacobi formalism from mechanical models, whose degrees of freedom depend on just one variable, to field theories where the degrees of freedom depend on two or more variables. This problem was addressed and developed in generality in field theory, but not much was known in the context of gravitational field theories. An important issue in this thesis was to apply such extended formalism to the study of black holes. We have worked with the so-called De Donder-Weyl-Hamilton-Jacobi (DWHJ) theory, which is the simplest extension of the classical Hamilton-Jacobi approach in mechanics. One important difference with respect to the case of classical mechanics consists in the replacement of the Hamilton principal function S, directly related to the fake-superpotential of static black holes, with a Hamilton principal 1-form, which is a covariant vector Si. The application of this formalism to the description of axisymmetric solutions black holes required working out the general form of the principal functions Sm associated with the corresponding effective 2D sigma-model in the DWHJ setting. We have also given a characterization of the general properties of such solutions with respect to the global symmetry group of the effective 2D sigma-model which describes them. This was done by introducing, aside from the Nöther charge matrix, a further characteristic constant matrix Qψ, in the Lie algebra of G(3), the global symmetry properties of affine solutions 2D model, associated with the rotational motion of the black hole.
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Klochan, Oleh V. Physics Faculty of Science UNSW. "Ballistic transport in one-dimensional p-type GaAs devices." Awarded by:University of New South Wales, 2007. http://handle.unsw.edu.au/1959.4/35186.

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In this thesis we study GaAs one dimensional hole systems with strong spin-orbit interaction effects. The primary focus is the Zeeman splitting of 1D subbands in the two orthogonal in-plane magnetic field directions. We study two types of 1D hole systems based on different (311)A grown heterostructures: a modulation doped GaAs/AlGaAs square quantum well and an undoped induced GaAs/AlGaAs triangular quantum well. The results from the modulation doped 1D wire show enhanced anisotropy of the effective Lande g-factor for the two in-plane field directions (parallel and perpendicular to the wire), compared to that in 2D hole systems. This enhancement is explained by the confinement induced reorientation of the total angular momentum ^ J from perpendicular to the 2D plane to in-plane and parallel to the wire. We use the intrinsic anisotropy of the in-plane g-factors to probe the 0:7 structure and the zero bias anomaly in 1D hole wires. We find that the behaviour of the 0:7 structure and the ZBA are correlated and depend strongly on the orientation of the in-plane field. This result proves the connection between the 0:7 and the ZBA and their relation to spin. We fabricate the first induced hole 1D wire with extremely stable gate characteristics and characterize this device. We also fabricate devices with two orthogonal induced hole wires on one chip, to study the interplay between the confinement, crystallographic anisotropy and spin-orbit coupling and their effect on the Zeeman splitting. We find that the ratios of the g-factors in the two orthogonal field directions for the two wires show opposite behaviour. We compare absolute values of the g-factors relative to the magnetic field direction. For B || [011] the g-factor is large for the wire along [011] and small for the wire along [233]. Whereas for B || [233], the g-factors are large irrespective of the wire direction. The former result can be explained by reorientation of ^ J along the wire, and the latter by an additional off-diagonal Zeeman term, which leads to the out-of-plane component of ^ J when B || [233], and as a result, to enhanced g-factors via increased exchange interactions.
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Brunner, Michael. "Single hole dynamics in the t-J model." [S.l.] : Universität Stuttgart , Fakultät Physik, 2000. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB8473264.

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Brunner and Michael. "Single hole dynamics in the t-J model." Phd thesis, Universitaet Stuttgart, 2000. http://elib.uni-stuttgart.de/opus/volltexte/2000/597/index.html.

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Srivastava, Yogesh K. "Dynamics of black holes and black rings in string theory." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1181586688.

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Olsson, Martin. "String Theory at the Horizon : Quantum Aspects of Black Holes and Cosmology." Doctoral thesis, Uppsala University, Department of Theoretical Physics, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5926.

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String theory is a unified framework for general relativity and quantum mechanics, thus being a theory of quantum gravity. In this thesis we discuss various aspects of quantum gravity for particular systems, having in common the existence of horizons. The main motivation is that one major challenge in theoretical physics today is in trying to understanding how time dependent backgrounds, with its resulting horizons and space-like singularities, should be described in a controlled way. One such system of particular importance is our own universe.

We begin by discussing the information puzzle in de Sitter space and consequences thereof. A typical time-scale is encountered, which we interpreted as setting the thermalization time for the system. Then the question of closed time-like curves is discussed in the combined setting where we have a rotating black hole in a Gödel-like universe. This gives a unified picture of what previously was considered as independent systems. The last three projects concerns $c=1$ matrix models and their applications. First in relation to the RR-charged two dimensional type 0A black hole. We calculate the ground state energy on both sides of the duality and find a perfect agreement. Finally, we relate the 0A model at self-dual radius to the topological string on the conifold. We find that an intriguing factorization of the theory previously observed for the topological string is also present in the 0A matrix model.

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Farrell, Conor. "Simulating ultracold matter : horizons and slow light." Thesis, St Andrews, 2008. http://hdl.handle.net/10023/416.

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Vrabec, Nancy Joan 1955. "THE EFFECTIVENESS OF MODELED BEHAVIOR VERSUS DIDACTIC INFORMATION ON COGNITIVE ACQUISITION OF KNOWLEDGE BY EMPLOYEES OF ADULT CARE HOMES (ELDERLY, VIDEOTAPE, COMMUNITY HEALTH, BOARDING HOMES)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/275521.

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Books on the topic "Holes in module"

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M, Novello, Visser Matt, and Volovik G. E, eds. Artificial black holes. New Jersey: World Scientific, 2002.

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Oxlade, Chris. Houses and homes. New York: F. Watts, 1994.

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Kaila, Anna-Mikaela. Moduli 225: A gem of modern architecture. Helsinki, Finland: Aalto University School of Arts, Design and Architecture, Aalto ARTS Books, 2016.

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Horowitz, Gary T. Black holes in higher dimensions. New York: Cambridge University Press, 2012.

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Cube, Brenda, and Michael Marlowe. Affordable housing: Manufactured homes. [Urbana, Ill.]: University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service, 1989.

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Wysocki, Joseph L. Affordable housing: Manufactured homes. [Urbana, Ill.]: University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service, 1989.

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Hamilton-Maclaren, Alistair. Houses and homes. New York: Bookwright Press, 1992.

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Hemsendorf, Marc. Dynamics of black holes in galactic centres. Aachen: Shaker, 2000.

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Essam, Mohamed, and United States. National Aeronautics and Space Administration., eds. Analytical modeling of pressure wall hole size and maximum tip-to-tip crack length for perforating normal and oblique orbital debris impacts: Final report for period 01 April 1995 to 31 July 1997, contract NCC8-28. Huntsville, Ala: Civil & Environmental Engineering Dept., University of Alabama in Huntsville, 1997.

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Essam, Mohamed, and United States. National Aeronautics and Space Administration., eds. Analytical modeling of pressure wall hole size and maximum tip-to-tip crack length for perforating normal and oblique orbital debris impacts: Final report for period 01 April 1995 to 31 July 1997, contract NCC8-28. Huntsville, Ala: Civil & Environmental Engineering Dept., University of Alabama in Huntsville, 1997.

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Book chapters on the topic "Holes in module"

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Drew, L. J. "Irresistible Holes in the Ground." In Deposit and Geoenvironmental Models for Resource Exploitation and Environmental Security, 401–4. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0303-2_20.

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Marrani, Alessio. "Charge Orbits and Moduli Spaces of Black Hole Attractors." In Lecture Notes in Mathematics, 155–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21744-9_8.

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Ball, Adrian, John Zigman, Arman Melkumyan, Anna Chlingaryan, Katherine Silversides, and Raymond Leung. "Addressing Application Challenges with Large-Scale Geological Boundary Modelling." In Springer Proceedings in Earth and Environmental Sciences, 221–36. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-19845-8_17.

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AbstractFor banded iron formation-hosted deposits accurate boundary modelling is critical to ore-grade estimation. Key to estimation fidelity is the accurate separation of the different domains within the ore body, requiring modelling of the boundaries between domains. This yields both theoretical and application challenges. We present a series of solutions for application challenges that arise when modelling large-scale boundaries employing a composition of Gaussian Process models on exploration and production hole data. We demonstrate these in the banded iron formation-hosted iron ore deposits in the Hamersley Province of Western Australia. We present solutions to several challenges: the inclusion of information derived from a geologist-defined boundary estimate to incorporate domain knowledge in data sparse regions, the incorporation of unassayed production holes that are implicitly defined as waste to augment production hole assay data, and a more holistic method of defining regional bounds and spatial rotations for Gaussian Process modelling of local spaces. Solution are evaluated against a range of metrics to show performance improvements over the manually performed estimation by an expert geologist of the boundaries delineating the ore body domains. Reconcilliation scores are used for evaluating the quality of predicted domain boundaries against measured production data. The predicted and in situ surfaces are also qualitatively evaluated against production data to ensure that the models were evaluated to be geologically sound by an expert in the field. In particular, better fidelity is shown when separating mineralised and non-mineralised ore, consequently improving the estimation of the ore-grades present in the mine site.
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Andrada, Ana Vallejo, Evaristo Barrera Algarín, and José Luis Sarasola Sánchez-Serrano. "Mourning Protocols in Nursing Homes." In Qualitative and Quantitative Models in Socio-Economic Systems and Social Work, 3–16. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-18593-0_1.

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Britto-Pacumio, Ruth, Jeremy Michelson, Andrew Strominger, and Anastasia Volovich. "Lectures on Superconformal Quantum Mechanics and Multi-Black Hole Moduli Spaces." In M-Theory and Quantum Geometry, 255–84. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4303-5_6.

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Britto-Pacumio, Ruth, Jeremy Michelson, Andrew Strominger, and Anastasia Volovich. "Lectures on Superconformal Quantum Mechanics and Multi-Black Hole Moduli Spaces." In Progress in String Theory and M-Theory, 235–64. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0852-5_7.

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Xing, Liudong, Guilin Zhao, and Yisha Xiang. "Phased-Mission Modelling of Physical Layer Reliability for Smart Homes." In Stochastic Models in Reliability Engineering, 317–30. First edition. | Boca Raton, FL : CRC Press/Taylor & Francis Group, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429331527-20.

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de Sousa, J. S., V. N. Freire, and J. P. Leburton. "Hole- Versus Electron-Based Operations in SiGe Nanocrystal Nonvolatile Memories." In Physical Models for Quantum Dots, 915–23. New York: Jenny Stanford Publishing, 2021. http://dx.doi.org/10.1201/9781003148494-59.

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Heyde, Kris L. G. "Elementary Modes of Excitation: Particle-Hole Excitations at Closed Shells." In The Nuclear Shell Model, 204–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-79052-2_7.

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Nawaz, Mueen, Jean-Pierre Leburton, and Jianming Jin. "Hole Scattering by Confined Optical Phonons in Silicon Nanowires." In Physical Models for Quantum Wires, Nanotubes, and Nanoribbons, 307–15. New York: Jenny Stanford Publishing, 2023. http://dx.doi.org/10.1201/9781003219378-24.

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Conference papers on the topic "Holes in module"

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Chiang, S. B., and C. C. Wang. "A Novel Concept to Improve the Performance of LED Panel Using Drilled Holes." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82627.

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In this study, the concept of the thermal module of LEDs cooling by use of drilled hole to entrain air flow was examined. It is found that the drilled hole does not necessarily improve the overall performance. It depends on the size of the drilled hole, the number of drilled holes, and the locations. The heat transfer coefficients are generally increased with the number of drilled holes and the diameter of the drilled hole. In this paper, the plate fin heat sink has a higher heat transfer coefficients than pin fins, but the overall performance of the LED panel having pin fin outperforms that of plate fin. This is because the pin fin provides much larger surface area. For decrease the maximum temperature of the LED panel, placement of the drilled holes along the hot region will be more effective.
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Abdo, Peter, B. P. Huynh, and Vahik Avakian. "Distribution of Air Flow Through a Green Wall Module." In ASME 2017 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fedsm2017-69134.

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Green or living walls are active bio-filters developed to enhance air quality. Often, these walls form the base from which plants are grown; and the plant-wall system helps to remove both gaseous and particulate air pollutants. A green wall can be found indoors as well as outdoors, and could be assembled from modules in an arrangement similar to tiling. The module is a rectangular plastic box (dimensions about 500 mm × 500 mm × 130 mm) that holds a permeable bag containing a plant-growing medium (replacement for soil). The front face of the module has multiple openings for plants to protrude out from the bag inside. Plant roots are imbedded in the medium. A fan positioned at a central opening on the module’s back face drives air through the medium-plant-roots mix and then onward through the plants′ canopy; and these would help remove both gaseous and particulate pollutants from the air. Volatile Organic compounds (VOCs) and particulate matters PMs are both reduced by passing through the plant-growing medium, thus reducing the percentage of air flow that passes through the open top face of the module is essential to maximize the capacity of bio-filtration. Drip-irrigation water is dispensed from a tube running along the open top-face of the module. The module has also a small drainage hole on its bottom face. Pressure drop across the module as well as air-flow rate through it have been obtained in a previous work [1], air-flow distribution through the module and the effect of introducing a cover to the module’s open top face are investigated in this work to improve the design of the module and achieve more appropriate flow rate and flow distribution. The top cover essentially includes small holes of 10 mm diameter to allow the necessary irrigation. The measurements help to determine the pattern of flow resistances which in turn will be used in a future CFD (Computational Fluid Dynamics) analysis.
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Liu, Zhizhi, He Yuan, Changzheng Sun, Mingjun Zhang, Pengfei Cai, and Yi Luo. "Grounded Coplanar Waveguide with Via Holes for High-speed Integrated EA Modulator/DFB Laser Module." In 2007 International Nano-Optoelectronics Workshop. IEEE, 2007. http://dx.doi.org/10.1109/inow.2007.4302925.

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Sun, Zonghan, Pengfei Chai, Jie Tian, Zhaohui Du, and Hua Ouyang. "Aerodynamic Noise Characteristics of Axial Flow Fan in Narrow Space and Noise Reduction Based on Flow Control." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-82141.

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Abstract The aeroacoustic characteristics of a power module in the electric vehicle charging pile is studied by experimental and numerical methods. In the free field, a single cooling fan mainly emits tonal noise, while the far-field noise of fans in parallel satisfied the superposition of incoherent sound sources. However, when two fans in parallel delivered air into the power module, the noise increased significantly, especially broadband noise. Referring to the power module, a narrow space model with cooling fan supplying air inward is constructed. The computational fluid dynamics (CFD) results show that the mass flow rate of the fan is reduced due to the obstacles downstream, which weakens the heat dissipation performance. Part of the fluid forms reflux, interacts with the fan and strengthens the corner vortex. By setting guide holes on the casing near the flow blockage to arrange flow, the flow resistance is reduced and the total mass flow rate of the fan is increased by 2.5%. The reflux and corner vortex are dispersed, and the vortices develop downstream, thus reducing the interaction with the fan. The predicted tonal sound pressure level (SPL) decreases by 3.2 dBA based on acoustic analogy method. The broadband noise caused by shedding vortex is also predicted and discussed by a semi-empirical model. In the noise reduction experiment of the real power module, combining inlet bellmouth on the fan and guide holes on the casing, the total SPL was significantly reduced by 2.9 dBA. Especially, based on bellmouth, guide holes brought an additional 1.9 dBA tonal noise reduction and 1.0 dBA total SPL reduction. The study indicates that appropriate flow control is important to improve the heat dissipation and reduce noise of the power module. These results are helpful to develop higher power charging system.
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Bhore, Chaitanya V., Atul B. Andhare, and Pramod M. Padole. "Design and modelling of shaker table for harmonic response analysis of PV module." In International Conference on Mechanical, Automotive and Mechatronics Engineering. Aksaray: ECER, 2023. http://dx.doi.org/10.53375/icmame.2023.183.

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Due to exponential growth in solar photovoltaic technology and power generation, it is common to see solar PV modules mounted on structures subjected to dynamic loading. These dynamic loads such as wind, rain, snow, base excitation, transportation and much more causes vibrations in the PV modules and deteriorate their performance. Among the various dynamic loads, Base Excitation is one of the major cause for induced vibration in PV modules. Vibration amplitude and frequency were preciously recorded at the base/mounting of PV module in the vicinity of Metro Rail. From the vibration reading it was observed that the peak frequency levels fall in 30-80 Hz range. Therefore, for harmonic response analysis of PV module it was necessary to build a shaker table which will provide the required base excitation for analysis. This paper deals with design, modelling, assembly and finite element modal and harmonic analysis of shaker table. Shaker table is divided in basic four parts, 1) base, 2) spring support, 3) electric motor with unbalanced mass and 4) mounting structure for PV module mounting. Variable speed electric motor is attached with a disc with different holes at varying distance from the center of the shaft, so as to provide multiple types of harmonic forces and frequencies. Before manufacturing, modal and harmonic analysis is performed on the shaker table plus PV module assembly in ANSYS to check whether the systems natural frequency comes near to only PV modules modal frequency range. It was observed that the shaker table natural frequencies were not in the range of PV module’s natural frequencies. This study will be useful to provide a basis for designing the clamping and mounting arrangements for the PV modules to retard its performance deterioration due to the induced vibrations.
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Dai, Wei, Yan Zhang, Yuzhen Lin, Qian Yang, and Chi Zhang. "Influence of the Arrangement of Dilution Holes for Dilution Mixing in a Three-Injector Reverse Flow Combustor." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25235.

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The exit temperature profile has a great effect on the reliability and security in a gas turbine. In this paper, the exit temperature profile of a small engine reverse-flow combustor with three injectors test module was experimentally obtained to qualitatively analyze the influence of the dilution hole distribution. The test model was a three-injector rectangular reverse-flow combustor with swirling flow atomizing. A 1D moving thermocouple rake was used to measure the global exit temperature profile of the combustor. The pressure was at ambient pressure with the inlet temperature was 290K. The FAR was in the range of 0.03. The dilution holes were in opposed and staggered arrangements. The experimental results showed that the exit temperature profile was obviously influenced by the dilution holes. Compared with the opposed dilution jets, the staggered dilution jets provided more uniform circumferential exit temperature profile, but a little higher pattern factor of 0.1725. The numerical results showed that the staggered dilution jets generated a larger scale counter-rotating vortex pairs. The inner and outer jets not only did not interact with each other (especially at the outer ring of combustor), but also filled the intermediate regions of dilution jets, resulting in a higher gas mixing rate. Consequently, the staggered dilution jets provided a better mixing performance for the outer ring of combustor.
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Zan, Yingfei, Ruinan Guo, Lihao Yuan, Fuxiang Huang, and Dongchun Kang. "Numerical Invertigation of Water Entry of a Subsea Module With Deflated Cavity Shells." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-19118.

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Abstract In subsea installation operations, the hydrodynamic forces on the subsea module are important considerations when designing the structure and choosing slings. In this paper, the hydrodynamic forces and flow field of a subsea module with deflated cavity shells during forced water entry operation were investigated numerically. The numerical simulation was carried out based on Reynolds-averaged Navier–Stokes equations, with a constant lowering velocity of the module. The results of the numerical simulation were validated by experimental data and they showed good agreement. The relationship between hydrodynamic forces and draft was presented. Furthermore, the slamming positions, free surface variation, pressure variation in deflated cavity shells, slamming coefficient and the influence of holes were studied based on flow field scenes. It was found that the hydrodynamic forces varied with draft non-linearly. Moreover, the change of draft altered the form of the free surface due to the complex steel frame structure of deflated cavity shells. The present study can be further extended to assess the operating conditions of lifting operations and to advise on the design of the subsea module.
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Takenaka, Shoichi, Shoji Ito, Ryoichi Kishihara, Masahiro Okamoto, and Osamu Nakao. "Polyimide Multi-Layer Substrate for High-Density Semiconductor Package." In ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems collocated with the ASME 2005 Heat Transfer Summer Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ipack2005-73065.

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We have developed a polyimide multi-layer substrate for semiconductor package. Interstitial via holes filled with conductive paste make the electrical connection in any layers in the multi-layer substrate to realize high-density wiring. The substrate shows reliable resistance to moisture and heat. Use of polyimide film make the substrate considerable thin compared to the conventional method using glass-epoxy. The present multi-layer substrate can be applied to a promising interposer for high-density semiconductor such as multi-chip module and stacked chip.
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Maurya, Dalton, G. N. Jayaprakash, and C. Badarinath. "Challenges in Aero Gas Turbine Combustor Development." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59429.

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The Hot End Technologies Directorate (HETD) of Gas Turbine Research Establishment (GTRE) has the mandate to design, development and delivery of airworthy combustor and afterburner modules for a military aero gas turbine engine. In order to meet the mandate, the directorate takes the overall responsibility of design to manufacture of the combustion systems. This paper addresses the challenges faced in the development of combustor module. A short annular combustor with air blast atomizer is incorporated in the engine and it is a very important equipment of a gas turbine engine, wherein the heat energy is added to get Turbine Inlet Temperature (TET). It comprises of a pre-diffuser, a dump diffuser, outer annulus, inner annulus and a flame tube. There has been a basic liner, which was used in earlier engines and there was a shortfall in terms of performance parameters — allowable profile and pattern factors. To improve the performance, in collaboration with the M/s Central Institute of Aviation Motors (CIAM), Moscow, Russia, the liner was redesigned [1]. The secondary holes were totally blocked, primary and dilution holes were altered and it was incorporated with a new dome with a modified curvature. A new air blast atomizer with a swirler having an outer and inner pintle was incorporated. The basic liner was incorporated with these modifications and making this dome out of the high temperature resistance nickel chromium alloy was challenging and it was realized. The liner assemblies incorporating all the welding details have been realized within the GTRE. The combustor system was tested for ground light up to 4.3 km. The light up time was of the order of 5 s. The pressure loss was of the order of 4.9% at a combustor inlet Mn of 0.30. The circumferential and radial pattern factor for the modified liner is of 0.36 and 0.14 respectively.
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Lewis, Scott, Brett Barker, Jeffrey P. Bons, Weiguo Ai, and Thomas H. Fletcher. "Film Cooling Effectiveness and Heat Transfer Near Deposit-Laden Film Holes." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59567.

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Experiments were conducted to determine the impact of synfuel deposits on film cooling effectiveness and heat transfer. Scaled up models were made of synfuel deposits formed on film-cooled turbine blade coupons exposed to accelerated deposition. Three distinct deposition patterns were modeled: a large deposition pattern (max deposit peak ≅ 2 hole diameters) located exclusively upstream of the holes, a large deposition pattern (max deposit peak ≅ 1.25 hole diameters) extending downstream between the cooling holes, and a small deposition pattern (max deposit peak ≅ 0.75 hole diameter) also extending downstream between the cooling holes. The models featured cylindrical holes inclined at 30 degrees to the surface and aligned with the primary flow direction. The spacing of the holes were 3, 3.35, and 4.5 hole diameters respectively. Flat models with the same film cooling hole geometry and spacing were used for comparison. The models were tested using blowing ratios of 0.5–2 with a turbulent approach boundary layer and 0.5% freestream turbulence. The density ratio was approximately 1.1 and the primary flow Reynolds number at the film cooling row location was 300,000. An infrared camera was used to obtain the film cooling effectiveness from steady state tests and surface convective heat transfer coefficients using transient tests. The model with upstream deposition caused the primary flow to lift off the surface over the roughness peaks and allowed the coolant to stay attached to the model. Increasing the blowing ratio from 0.5 to 2 only expanded the region that the coolant could reach and improved the cooling effectiveness. Though the heat transfer coefficient also increased at high blowing ratios, the net heat flux ratio was still less than unity, indicating film cooling benefit. For the two models with deposition between the cooling holes, the free stream air was forced into the valleys in line with the coolant holes and degraded area-averaged coolant performance at lower blowing ratios. It is concluded that the film cooling effectiveness is highest when deposition is limited to upstream of the cooling holes. When accounting for the insulating effect of the deposits between the film holes, even the panels with deposits downstream of the film holes can yield a net decrease in heat flux for some cases.
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Reports on the topic "Holes in module"

1

Ramirez, Michael, Travis Dahl, and Gary Brown. Acoustic Doppler current profiler study of water and sediment movement through a deep scour hole in the Lower Mississippi River. Engineer Research and Development Center (U.S.), August 2023. http://dx.doi.org/10.21079/11681/47400.

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A series of acoustic Doppler current profiler (ADCP) transects were collected through a deep scour hole at the bend near River Mile 60 on the Lower Mississippi River. The measurements were collected during both a low and a high flow. The ADCP results show a 3D flow field through the deep bend. The backscatter intensity of the ADCP measurements indicates the majority of the sediment remains close to the inside of the bend and high in the water column, with minimal concentrations at the bottom of the bend. These findings have implications for numerical sediment transport models, which tend to deposit material at the bottom of deep scour holes like the one in this study.
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Sherman, Max H. Air Tightness of US Homes: Model Development. Office of Scientific and Technical Information (OSTI), May 2006. http://dx.doi.org/10.2172/891213.

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Chasar, David, Janet McIlvaine, Jeremy Blanchard, Sarah H. Widder, and Michael C. Baechler. Building Energy Model Development for Retrofit Homes. Office of Scientific and Technical Information (OSTI), September 2012. http://dx.doi.org/10.2172/1060666.

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Dolence, Joshua C., Charles F. Gammie, and Benjamin Ryan. Ab Initio Models of Accreting Black Holes with Monte Carlo-based Relativistic Radiation Magnetohydrodynamics. Office of Scientific and Technical Information (OSTI), December 2016. http://dx.doi.org/10.2172/1337055.

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Hammack, E., and Morgan Johnston. Three-dimensional numerical model study of flow near a scour hole in Isle of Wight Bay near Ocean City, Maryland. Engineer Research and Development Center (U.S.), April 2022. http://dx.doi.org/10.21079/11681/43921.

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A scour hole has developed in Isle of Wight Bay near Ocean City, MD. This hole could grow to the point that nearby land developments are threatened, so channel-bed protection measures may be implemented near this scour hole. Appropriately designing those bed protection measures requires knowledge of the flow behavior in the scour hole, so a three-dimensional model study has been conducted to determine the flow behavior at the extreme flood and ebb tides present during a pre-selected month of tide cycles. Steady-state simulations of the flows during those two tide conditions have been completed. Contour plots of the flow velocity near the bed and the corresponding bed shear stresses are provided as input for the design of the bed protection measures.
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Friedman, H. Precision Hole Drilling Using a Polychromatic, Bi-Modal Technique. Office of Scientific and Technical Information (OSTI), January 2002. http://dx.doi.org/10.2172/15002788.

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Tarney, J., and N. G. Marsh. Major and Trace Element Geochemistry of Holes Cy - 1 and Cy - 4: Implications For Petrogenetic Models. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/133537.

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Kott, Phillip S. The Role of Weights in Regression Modeling and Imputation. RTI Press, April 2022. http://dx.doi.org/10.3768/rtipress.2022.mr.0047.2203.

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When fitting observations from a complex survey, the standard regression model assumes that the expected value of the difference between the dependent variable and its model-based prediction is zero, regardless of the values of the explanatory variables. A rarely failing extended regression model assumes only that the model error is uncorrelated with the model’s explanatory variables. When the standard model holds, it is possible to create alternative analysis weights that retain the consistency of the model-parameter estimates while increasing their efficiency by scaling the inverse-probability weights by an appropriately chosen function of the explanatory variables. When a regression model is used to impute for missing item values in a complex survey and when item missingness is a function of the explanatory variables of the regression model and not the item value itself, near unbiasedness of an estimated item mean requires that either the standard regression model for the item in the population holds or the analysis weights incorporate a correctly specified and consistently estimated probability of item response. By estimating the parameters of the probability of item response with a calibration equation, one can sometimes account for item missingness that is (partially) a function of the item value itself.
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Maley, Michael. Program evaluation: a model for evaluating group homes for the developmentally disabled. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.2756.

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DiGrande, Laura, Sue Pedrazzani, Elizabeth Kinyara, Melanie Hymes, Shawn Karns, Donna Rhodes, and Alanna Moshfegh. Field Interviewer– Administered Dietary Recalls in Participants’ Homes: A Feasibility Study Using the US Department of Agriculture’s Automated Multiple-Pass Method. RTI Press, May 2021. http://dx.doi.org/10.3768/rtipress.2021.mr.0045.2105.

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Objective: The purpose of this study was to assess the feasibility of administering the Automated Multiple-Pass Method (AMPM), a widely used tool for collecting 24-hour dietary recalls, in participants’ homes by field interviewers. Design: The design included computer-assisted personal interviews led by either a nutritionist (standard) or field interviewer. Portion estimators tested were a set of three-dimensional food models (standard), a two-dimensional food model booklet, or a tablet with digital images rendered via augmented reality. Setting: Residences in central North Carolina. Participants: English-speaking adults. Pregnant women and individuals who were fasting were excluded. Results: Among 133 interviews, most took place in living rooms (52%) or kitchens (22%). Mean interview time was 40 minutes (range 13–90), with no difference by interviewer type or portion estimator, although timing for nutritionist-led interviews declined significantly over the study period. Forty-five percent of participants referenced items from their homes to facilitate recall and portion estimation. Data entry and post-interview coding was evaluated and determined to be consistent with requirements for the National Health and Nutrition Examination Survey. Values for the number of food items consumed, food groups, energy intake (average of 3,011 kcal for men and 2,105 kcal for women), and key nutrients were determined to be plausible and within reasonably expected ranges regardless of interviewer type or portion estimator used. Conclusions: AMPM dietary recall interviews conducted in the home are feasible and may be preferable to clinical administration because of comfort and the opportunity for participants to access home items for recall. AMPMs administered by field interviewers using the food model booklet produced credible nutrition data that was comparable to AMPMs administered by nutritionists. Training field interviewers in dietary recall and conducting home interviews may be sensible choices for nutrition studies when response rates and cost are concerns.
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