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Journal articles on the topic 'Circuit folding'

Author: Grafiati

Published: 7 February 2023

Last updated: 31 July 2025

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1

Lisnchenko, M. O., and S. I. Protasov. "Protein folding quantum circuit quantum circuit for bio material modelling compression." Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering 25, no. 4 (2023): 305–11. http://dx.doi.org/10.17073/1609-3577-2022-4-305-311.

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Computational material science aims to simulate substances to understand their physical properties. Bioelectronics is an interdisciplinary field that studies biological material from the conductivity point of view. In case of proteins, the folding is an important feature that directly influences physical and chemical properties. The folding modelling is a hard task. The enormous number of degrees of freedom makes modelling impossible for classical computation due to resource limits. Quantum computations aim to process multidimensional data with logarithmic growth of quantum bits. Quantum opera

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Amy, Matthew, and Joseph Lunderville. "Linear and Non-linear Relational Analyses for Quantum Program Optimization." Proceedings of the ACM on Programming Languages 9, POPL (2025): 1072–103. https://doi.org/10.1145/3704873.

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The phase folding optimization is a circuit optimization used in many quantum compilers as a fast and effective way of reducing the number of high-cost gates in a quantum circuit. However, existing formulations of the optimization rely on an exact, linear algebraic representation of the circuit, restricting the optimization to being performed on straightline quantum circuits or basic blocks in a larger quantum program. We show that the phase folding optimization can be re-cast as an affine relation analysis , which allows the direct application of classical techniques for affine relations to e

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Zhang, Yi, Qiao Meng, Changchun Zhang, et al. "A 2 GSps, 8-Bit Folding and Interpolation ADC with Foreground Calibration in 90 nm CMOS Technology." Journal of Sensors 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/3984526.

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A single channel 2 GSps, 8-bit folding and interpolation (F&I) analog-to-digital converter (ADC) with foreground calibration in TSMC 90 nm CMOS technology is presented in this paper. The ADC utilizes cascaded folding, which incorporates an interstage sample-and-hold amplifier between the two stages of folding circuits to enhance the quantization time. A master-slave track-and-hold amplifier (THA) with bootstrapped switch is taken as the front-end circuit to improve ADC’s performance. The foreground digital assisted calibration has also been employed to correct the error of zero-crossing po

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Dzarnoski, John, and Kexia Sun. "Effect on Reliability of Bending Flexible Circuits." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2010, DPC (2010): 002104–30. http://dx.doi.org/10.4071/2010dpc-tha14.

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There has been enormous worldwide effort to increase the volumetric efficiency of electronic packaging. Much of this effort has been driven by the telecommunications industry that has succeeded in reducing cell phone size while simultaneously increasing functionality. The hearing aid business has always had the need to use extremely small electronic packaging because hearing aids pack electronics into the ear canal. In recent years hearing aid microelectronic packaging has moved from ceramic hybrid based packaging to a flexible circuit based technology. Due to the size and shape of all types o

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Heidari, Maziar, Helmut Schiessel, and Alireza Mashaghi. "Circuit Topology Analysis of Polymer Folding Reactions." ACS Central Science 6, no. 6 (2020): 839–47. http://dx.doi.org/10.1021/acscentsci.0c00308.

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6

Sun, Jing Rui, and Jin Cheng Wu. "Research and Implementation of Folding Machine Control System Based on MPU." Advanced Materials Research 383-390 (November 2011): 5838–43. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.5838.

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The purpose of this paper is to analyze the working principle of folding machine and it also explains the working mode of the stepper motor. Basing on these, the control-system of folding machine is designed. It is through the AT89C52 MPU and the corresponding circuit of periphery to control the two stepper motors. So it can drive the feeding roller and the paper roller to overlay in accordance with the predefined size. The system achieves the automation of folding. It not only reduces the labor, but also improves the efficiency and accuracy of folding. It has a very broad application prospect

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Le, Binh Son, Trong Tu Bui, and Duc Hung Le. "A Design of 10-b 100-MS/s Pipelined Folding ADC with Distributed Track-and-Hold Preprocessing." Science and Technology Development Journal 17, no. 1 (2014): 39–51. http://dx.doi.org/10.32508/stdj.v17i1.1241.

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This paper presents a 10-b ADC designed in a 0.18-μm CMOS technology. The ADC achieves 10-b resolution by using the cascaded folding technique in both the fine and coarse converters. Folding stages are pipelined to improve the settling time. As a result, this ADC can achieve the sampling rate up to 100MS/s. Moreover, instead of using a costly single track-and-hold circuit, a distributed track-and-hold circuit is used to reduce the chip area and the power consumption. This also allows utilizing the open-loop architecture of the folding technique, thus improving the performance of the system. Th

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8

Lisnichenko, M. O., and S. I. Protasov. "Protein Folding Quantum Circuit for Bio Material Modelling Compression." Russian Microelectronics 51, no. 8 (2022): 717–21. http://dx.doi.org/10.1134/s1063739722080182.

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9

Fernández, Pau, and Ricard V. Solé. "Neutral fitness landscapes in signalling networks." Journal of The Royal Society Interface 4, no. 12 (2006): 41–47. http://dx.doi.org/10.1098/rsif.2006.0152.

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Biological and technological systems process information by means of cascades of signals. Be they interacting genes, spiking neurons or electronic transistors, information travels across these systems, producing, for each set of external conditions, an appropriate response. In technology, circuits performing specific complex tasks are designed by humans. In biology, however, design has to be ruled out, confronting us with the question of how these systems could have arisen by accumulation of small changes. The key factor is the genotype–phenotype map. With the exception of RNA folding, not muc

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Heidari, Maziar, Vahid Satarifard, and Alireza Mashaghi. "Mapping a single-molecule folding process onto a topological space." Physical Chemistry Chemical Physics 21, no. 36 (2019): 20338–45. http://dx.doi.org/10.1039/c9cp03175h.

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Circuit topology provides information on the arrangement of contacts within a folded linear molecular chain. Here, the folding pathways of a restrained (RC) and a free (FCC) chain are mapped onto the topological landscape.

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11

Ciężak, Patryk, Andrzej Gębura, Sergiusz Szawłowski, et al. "Corrosion problems of the metallized connection of the aircraft fabric covering – selected problems." Journal of KONBiN 51, no. 4 (2021): 91–105. http://dx.doi.org/10.2478/jok-2021-0046.

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Abstract The article comprehensively describes corrosion problems related to the structure of ground-return circuits of military aircraft with metal fuselage structure. The authors describe problems related to the usage of the fuselage as a ground-return circuit of electric current, especially with negative circuits connecting the fuselage with negative terminals of the receiver or the source, rarely discussed in the scientific literature due to the triviality of the problem. Given the necessity to reduce the measurement error, the authors use a technical method for measuring the resistance of

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12

Lai, Yen-Tai, and Chia-Nan Yeh. "A folding technique for reducing circuit complexity of flash ADC decoders." Analog Integrated Circuits and Signal Processing 63, no. 2 (2009): 339–48. http://dx.doi.org/10.1007/s10470-009-9404-9.

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13

KENNEDY, MICHAEL PETER. "A NONLINEAR DYNAMICS INTERPRETATION OF ALGORITHMIC A/D CONVERSION." International Journal of Bifurcation and Chaos 05, no. 03 (1995): 891–93. http://dx.doi.org/10.1142/s0218127495000685.

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An algorithmic A/D converter may be viewed as a discrete-time dynamical system. From this perspective, an ideal one bit recycling binary converter corresponds to the Bernouilli Shift map. An implementation of the tent map (by means of a folding circuit or otherwise) yields an algorithmic converter with Gray code output.

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Kong, Dae Sol, Jae Yeon Han, Young Joon Ko, Sang Hyeok Park, Minbaek Lee, and Jong Hoon Jung. "A Highly Efficient and Durable Kirigami Triboelectric Nanogenerator for Rotational Energy Harvesting." Energies 14, no. 4 (2021): 1120. http://dx.doi.org/10.3390/en14041120.

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While sliding-mode triboelectric nanogenerators (S-TENGs) have been considered as one of the most promising devices for rotational energy harvesting, their inherently poor durability has been a serious bottleneck for applications. Herein, we report a three-dimensional kirigami TENG as a highly efficient and durable rotational energy harvesting device. The kirigami TENG consisted of cube-shaped paper, aluminum (Al) foil electrode and polytetrafluoroethylene (PTFE) polymer film, and converted rotational motion into multiple folding-unfolding vibrations. The rotation-folding (R-F) kirigami TENG g

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Zhang, Chi, and Yong-Chang Jiao. "Compact-Transmission-Line Decoupling and Matching Network of Three-Element Array for Wireless Applications." Electronics 12, no. 7 (2023): 1567. http://dx.doi.org/10.3390/electronics12071567.

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In this paper, a compact-transmission-line (TL) decoupling and matching network (DMN) for three-element circular arrays is presented. As a result of the miniaturization of wireless terminals, the antenna spacing is too close, leading to large couplings and deteriorating system performance. The DMN consists of an impedance transformation section and a star-shaped neutralization section which eliminates couplings between antennas while occupying a smaller area. The impedance transformation section converts the odd and even mode conductances of the antenna to the impedance of the feeding line, an

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16

Mashaghi, Alireza, and Roland van der Veen. "Polynomial Invariant of Molecular Circuit Topology." Symmetry 13, no. 9 (2021): 1751. http://dx.doi.org/10.3390/sym13091751.

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The topological framework of circuit topology has recently been introduced to complement knot theory and to help in understanding the physics of molecular folding. Naturally evolved linear molecular chains, such as proteins and nucleic acids, often fold into 3D conformations with critical chain entanglements and local or global structural symmetries stabilised by formation contacts between different parts of the chain. Circuit topology captures the arrangements of intra-chain contacts within a given folded linear chain and allows for the classification and comparison of chains. Contacts keep c

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Mugler, Andrew, Sander J. Tans, and Alireza Mashaghi. "Circuit topology of self-interacting chains: implications for folding and unfolding dynamics." Phys. Chem. Chem. Phys. 16, no. 41 (2014): 22537–44. http://dx.doi.org/10.1039/c4cp03402c.

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18

Lu, Chia-Feng, Yu-Te Wu, Shin Teng, et al. "Genetic Predisposition and Disease Expression of Bipolar Disorder Reflected in Shape Changes of the Anterior Limbic Network." Brain Sciences 9, no. 9 (2019): 240. http://dx.doi.org/10.3390/brainsci9090240.

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Bipolar disorder (BD) is a genetically and phenotypically complex psychiatric disease. Although previous studies have suggested that the relatives of BD patients have an increased risk of experiencing affective disturbances, most relatives who have similar genotypes may not manifest the disorder. We aim to identify the neuroimaging alterations—specifically, the cortical folding structures of the anterior limbic network (ALN)—in BD patients and their siblings, compared to healthy controls. The shared alterations in patients and their siblings may indicate the hereditary predisposition of BD, an

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19

Groden, Moritz, Marvin Weigand, Jochen Triesch, Peter Jedlicka, and Hermann Cuntz. "A Model of Brain Folding Based on Strong Local and Weak Long-Range Connectivity Requirements." Cerebral Cortex 30, no. 4 (2019): 2434–51. http://dx.doi.org/10.1093/cercor/bhz249.

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Abstract Throughout the animal kingdom, the structure of the central nervous system varies widely from distributed ganglia in worms to compact brains with varying degrees of folding in mammals. The differences in structure may indicate a fundamentally different circuit organization. However, the folded brain most likely is a direct result of mechanical forces when considering that a larger surface area of cortex packs into the restricted volume provided by the skull. Here, we introduce a computational model that instead of modeling mechanical forces relies on dimension reduction methods to pla

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Li, Rui Min, Liang Gong, Zhong Ping Chen, and Wu Long Jiang. "The Design of Gilbert-Type-Based Zero Intermediate Frequency CMOS Mixer." Advanced Materials Research 791-793 (September 2013): 1811–14. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.1811.

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Based on the techniques of dynamic current injection, common source node resonance, second-order linearity performance and the application of CMOS technology, a 1.8V power supply voltage active folding Gilbert-type zero intermediate frequency mixer has been designed by using Candense design system. The result of circuit stimulation shows, single sideband noise figure is 6.109dB when the mixer locates at 1MHz, 6.71dB at 100KHz, 10.631dB at 10KHz. Frequency conversion gain is 11.389dB and input third-order intermodulation point is 4.639dBm.

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21

Zhen, Liu, Jia Song, Wang Yuan, Ji Lijiu, and Zhang Xing. "Low-power CMOS fully-folding ADC with a mixed-averaging distributed T/H circuit." Journal of Semiconductors 30, no. 12 (2009): 125013. http://dx.doi.org/10.1088/1674-4926/30/12/125013.

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22

Li, Xiao Tong, Li Qin Xie, Hong Bing Wang, Fang Fang Zhai, Hong Wang, and Li Jie Zhao. "Design of Wheel Lifting Hydraulic System for Amphibious Vehicle." Applied Mechanics and Materials 730 (January 2015): 293–96. http://dx.doi.org/10.4028/www.scientific.net/amm.730.293.

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In accordance to the drawback of amphibious vehicle's low speed in water, a new kind of folding mechanism based on double wishbone suspension is proposed. Referring to the working conditions of the wheel lifted mechanism, the hydraulic circuit, which provides with the functions of pressure limiting, locked and pressure retaining, is designed to ensure the accuracy of wheel lifted and the driving safety. The appropriate hydraulic cylinders, hydraulic components and auxiliary components are chosen due to the hydraulic system load and the maximum flow rate.

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23

Kim, Jeongah, Bo-Young Kim, Seong Dae Park, et al. "Mechanical Durability of Flexible Printed Circuit Boards Containing Thin Coverlays Fabricated with Poly(Amide-Imide-Urethane)/Epoxy Interpenetrating Networks." Micromachines 12, no. 8 (2021): 943. http://dx.doi.org/10.3390/mi12080943.

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Because electronics are becoming flexible, the demand for techniques to manufacture thin flexible printed circuit boards (FPCBs) has increased. Conventional FPCBs are fabricated by attaching a coverlay film (41 μm) onto copper patterns/polyimide (PI) film to produce the structure of coverlay/Cu patterns/PI film. Given that the conventional coverlay consists of two layers of polyimide film and adhesive, its thickness must be reduced to generate thinner FPCBs. In this study, we fabricated 25-μm-thick poly(amide-imide-urethane)/epoxy interpenetrating networks (IPNs) to replace the thick conventio

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24

Wen, Yin, Bo Zhang, Yuan Lu, Liao Anmou, Du Tianmin, and Lixi Wan. "The Reliability Study of a High density Multi Chip Packaging with Folding Flexible Substrate." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2013, DPC (2013): 001846–969. http://dx.doi.org/10.4071/2013dpc-tha13.

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In this century, the IC packaging technology continues to make progress at astounding rate to meet the increasing requirements in many fields[1]. High density packaging is normally achieved by using various chip and/or package staking. Due to itsunique bending characteristics, flex substrate has become an ideal candidate for high density 3D packaging, especially applied for the packaging of medical products[2,3]. In this paper, we focus on the process development details of a flexible package, and investigate the main reliability problems through a series of reliability tests. There were three

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Golovnev, Anatoly, and Alireza Mashaghi. "Circuit Topology for Bottom-Up Engineering of Molecular Knots." Symmetry 13, no. 12 (2021): 2353. http://dx.doi.org/10.3390/sym13122353.

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The art of tying knots is exploited in nature and occurs in multiple applications ranging from being an essential part of scouting programs to engineering molecular knots. Biomolecular knots, such as knotted proteins, bear various cellular functions, and their entanglement is believed to provide them with thermal and kinetic stability. Yet, little is known about the design principles of naturally evolved molecular knots. Intra-chain contacts and chain entanglement contribute to the folding of knotted proteins. Circuit topology, a theory that describes intra-chain contacts, was recently general

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Bell, John, Laura Redmond, Kalind Carpenter, and Jean-Pierre de la Croix. "Finite Element Modeling of Rigid-Flex PCBs for Dynamic Environments." Journal of Microelectronics and Electronic Packaging 19, no. 1 (2022): 25–38. http://dx.doi.org/10.4071/imaps.1655356.

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ABSTRACT Rigid-flex circuit boards are becoming more prevalent as the limits are pushed on the size, mass, and geometry of electronic systems. A key aspect of designing a rigid-flex printed circuit boards (PCB) system is an assessment of the dynamic properties of the PCB and predicting system performance under dynamic loading. Among current modeling methodologies for rigid-flex PCB, a simplified modeling methodology that adequately captures the system dynamics does not exist. This article presents a novel, computationally efficient approach for modeling rigid-flex PCB systems and the calibrati

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Gao, Yu Han, Ru Zhang Li, Dong Bing Fu, Yong Lu Wang, and Zheng Ping Zhang. "An Encoder Used in an Ultra High-Speed Folding and Interpolating ADC." Advanced Materials Research 1049-1050 (October 2014): 687–90. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.687.

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High speed encoder is the key element of high speed analog-to-digital converter (ADC). Therefor the type of encoder, the type of code, bubble error suppression and bit synchronization must be taken into careful consideration especially for folding and interpolating ADC. To reduce the bubble error which may resulted from the circuit niose, comparator metastability and other interference, the output of quantizer is first encoded with gray code and then converted to binary code. This high speed encoder is verified in the whole time-interleaved ADC with 0.18 Bi-CMOS technology, the whole ADC can a

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Wei, S. J., H. C. Lin, R. C. Potter, and D. Shupe. "Dynamic hysteresis of the RTD folding circuit and its limitation on the A/D converter." IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing 39, no. 4 (1992): 247–51. http://dx.doi.org/10.1109/82.136576.

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29

Arinchev, S. V. "Printed circuit board stress strain strength analysis using the particle approach." Proceedings of Higher Educational Institutions. Маchine Building, no. 10 (763) (October 2023): 96–105. http://dx.doi.org/10.18698/0536-1044-2023-10-96-105.

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Traditionally, the load-carrying printed circuit boards are applied as an electrical engineering device. At the same time, the promising nanosatellites are using them as the spacecraft load-bearing structural elements. The printed circuit board is able to accommodate a relatively heavy solar cell, rotating gyroscopes and a folding antenna. Load-carrying board strength calculation is a complicated task, as a large number of stress concentrators and structural defects are effecting its surface. This makes it difficult to use the traditional concept of “stress at a point” applicable in continuous

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30

Hammond, C., and A. Helenius. "Quality control in the secretory pathway: retention of a misfolded viral membrane glycoprotein involves cycling between the ER, intermediate compartment, and Golgi apparatus." Journal of Cell Biology 126, no. 1 (1994): 41–52. http://dx.doi.org/10.1083/jcb.126.1.41.

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Proteins synthesized in the ER are generally transported to the Golgi complex and beyond only when they have reached a fully folded and assembled conformation. To analyze how the selective retention of misfolded proteins works, we monitored the long-term fate of a membrane glycoprotein with a temperature-dependent folding defect, the G protein of tsO45 vesicular stomatitis virus. We used indirect immunofluorescence, immunoelectron microscopy, and a novel Nycodenz gradient centrifugation procedure for separating the ER, the intermediate compartment, and the Golgi complex. We also employed the f

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Ding, Tian, Yanchi Zhang, Pengfei Ju, Wanting Liao, and Jun Fang. "Modeling H-bridge inverter based on PI control and its nonlinear dynamic behaviour." E3S Web of Conferences 360 (2022): 01075. http://dx.doi.org/10.1051/e3sconf/202236001075.

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In the H-bridge inverter, the control and circuit topology parameters are the key factors affecting its dynamic stability, and the changes of each parameter have different effects on the stability of the system. This paper takes the current-controlled first-order H-bridge passive inverter based on PI control as the research object. Firstly, based on the different modal of the circuit, an accurate discrete iterative mapping model of the H-bridge inverter is derived according to the stroboscopic mapping principle. Then iterate through the above iterative formula, after retaining the data of the

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Freire, Marco, Manas Bhargava, Camille Schreck, Pierre-Alexandre Hugron, Bernd Bickel, and Sylvain Lefebvre. "PCBend: Light Up Your 3D Shapes With Foldable Circuit Boards." ACM Transactions on Graphics 42, no. 4 (2023): 1–16. http://dx.doi.org/10.1145/3592411.

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We propose a computational design approach for covering a surface with individually addressable RGB LEDs, effectively forming a low-resolution surface screen. To achieve a low-cost and scalable approach, we propose creating designs from flat PCB panels bent in-place along the surface of a 3D printed core. Working with standard rigid PCBs enables the use of established PCB manufacturing services, allowing the fabrication of designs with several hundred LEDs. Our approach optimizes the PCB geometry for folding, and then jointly optimizes the LED packing, circuit and routing, solving a challengin

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Han, Jing Lei, Wen Lian Zhang, and Zhi Biao Shao. "A Novel Pre-Amplifier for DTH in Folding and Interpolating ADC." Applied Mechanics and Materials 321-324 (June 2013): 367–71. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.367.

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A pre-amplifier for distributed track and hold (DTH) circuit in high speed and high resolution folding and interpolating analog-to-digital converter (ADC) is proposed. This scheme resolves several limitations of conventional differential difference pre-amplifier (DDPA) in low voltage supply, compared to the conventional DDPA, the proposed scheme increases the input range so that all DDPAs of DTH can operate effectively, improves the averaging effect of average network, saves the random offset voltage from device mismatch, decreases the gain error of DTH, reduces the output common-mode (CM) dev

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Goldsworthy, Victoria, Geneva LaForce, Seth Abels, and Emil Khisamutdinov. "Fluorogenic RNA Aptamers: A Nano-platform for Fabrication of Simple and Combinatorial Logic Gates." Nanomaterials 8, no. 12 (2018): 984. http://dx.doi.org/10.3390/nano8120984.

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RNA aptamers that bind non-fluorescent dyes and activate their fluorescence are highly sensitive, nonperturbing, and convenient probes in the field of synthetic biology. These RNA molecules, referred to as light-up aptamers, operate as molecular nanoswitches that alter folding and fluorescence function in response to ligand binding, which is important in biosensing and molecular computing. Herein, we demonstrate a conceptually new generation of smart RNA nano-devices based on malachite green (MG)-binding RNA aptamer, which fluorescence output controlled by addition of short DNA oligonucleotide

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Chang, Chin-Wei, Patrick Riehl, and Jenshan Lin. "Alignment-Free Wireless Charging of Smart Garments with Embroidered Coils." Sensors 21, no. 21 (2021): 7372. http://dx.doi.org/10.3390/s21217372.

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Wireless power transfer (WPT) technologies have been adopted by many products. The capability of charging multiple devices and the design flexibility of charging coils make WPT a good solution for charging smart garments. The use of an embroidered receiver (RX) coil makes the smart garment more breathable and comfortable than using a flexible printed circuit board (FPCB). In order to charge smart garments as part of normal daily routines, two types of wireless-charging systems operating at 400 kHz have been designed. The one-to-one hanger system is desired to have a constant charging current d

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Srivastava, Ajeet Kumar, and Krishna Raj. "DESIGN OF AN OPTIMIZED CIC COMPENSATION FILTER USING A FIR FILTER BASED ON CSD GROUPING." ICTACT Journal on Microelectronics 8, no. 4 (2023): 1455–61. https://doi.org/10.21917/ijme.2023.0251.

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In high-speed signal processing, the multirate transformation is a widely used method for decimation and interpolation. The comb-based decimation filters with low complexity and strong alias rejection are preferably used in wireless applications. A linear phase FIR filter namely a cascaded-integrator-comb (CIC) filter can be used as a decimation filter. Since this filter doesn't contain a multiplier, it occupies less area and has a higher speed than other decimation filters. In digital systems, the redundant number system is frequently used to enhance the computational efficiency, which can th

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Cheng, Henghao, Xuan Pang, Haolin Liu, Jiaxin Deng, Ming Chen, and Zhen Chen. "Design of Self-floating Device For Spherical Aircraft Based on Miniature Electromagnetic Lock." Advances in Engineering Technology Research 1, no. 2 (2022): 9. http://dx.doi.org/10.56028/aetr.1.2.9.

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Aiming at the phenomenon that the aircraft is easy to fall into the sea due to adverse environmental factors such as strong wind and collision, which makes it difficult to recycle, a self-floating device based on miniature electromagnetic lock is proposed in this paper. The core circuit of the device takes 51 Single-Chip Microcomputer as the control core and Bluetooth module as the auxiliary control unit. The electromagnetic lock control system is designed and developed, and through the control of the electromagnetic lock on and off to pop corrugated folding airbag and reflector. Finally, the

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Cheng, Henghao, Xuan Pang, Haolin Liu, Jiaxin Deng, Ming Chen, and Zhen Chen. "Design of Self-floating Device For Spherical Aircraft Based on Miniature Electromagnetic Lock." Advances in Engineering Technology Research 2, no. 1 (2022): 9. http://dx.doi.org/10.56028/aetr.2.1.9.

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Aiming at the phenomenon that the aircraft is easy to fall into the sea due to adverse environmental factors such as strong wind and collision, which makes it difficult to recycle, a self-floating device based on miniature electromagnetic lock is proposed in this paper. The core circuit of the device takes 51 Single-Chip Microcomputer as the control core and Bluetooth module as the auxiliary control unit. The electromagnetic lock control system is designed and developed, and through the control of the electromagnetic lock on and off to pop corrugated folding airbag and reflector. Finally, the

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Tanaka, Satoshi, Takashi Matsumoto, Jun Noguchi, and Leon O. Chua. "Multi-folding: alternative appearance of period-one attractors and chaotic attractors in a driven RL-diode circuit." Physics Letters A 157, no. 1 (1991): 37–43. http://dx.doi.org/10.1016/0375-9601(91)90405-w.

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Grassi, Lorenzo, Dmitry Khovratovich, Reinhard Lüftenegger, Christian Rechberger, Markus Schofnegger, and Roman Walch. "Monolith: Circuit-Friendly Hash Functions with New Nonlinear Layers for Fast and Constant-Time Implementations." IACR Transactions on Symmetric Cryptology 2024, no. 3 (2024): 44–83. http://dx.doi.org/10.46586/tosc.v2024.i3.44-83.

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Hash functions are a crucial component in incrementally verifiable computation (IVC) protocols and applications. Among those, recursive SNARKs and folding schemes require hash functions to be both fast in native CPU computations and compact in algebraic descriptions (constraints). However, neither SHA-2/3 nor newer algebraic constructions, such as Poseidon, achieve both requirements. In this work we overcome this problem in several steps. First, for certain prime field domains we propose a new design strategy called Kintsugi, which explains how to construct nonlinear layers of high algebraic d

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Veit, Guido, Tony Velkov, Haijin Xu, et al. "A Precision Medicine Approach to Optimize Modulator Therapy for Rare CFTR Folding Mutants." Journal of Personalized Medicine 11, no. 7 (2021): 643. http://dx.doi.org/10.3390/jpm11070643.

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Trikafta, a triple-combination drug, consisting of folding correctors VX-661 (tezacaftor), VX-445 (elexacaftor) and the gating potentiator VX-770 (ivacaftor) provided unprecedented clinical benefits for patients with the most common cystic fibrosis (CF) mutation, F508del. Trikafta indications were recently expanded to additional 177 mutations in the CF transmembrane conductance regulator (CFTR). To minimize life-long pharmacological and financial burden of drug administration, if possible, we determined the necessary and sufficient modulator combination that can achieve maximal benefit in prec

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Zhao, Yinan, Jinwu Zhuang, Zhihao Ye, Zhiliang Qian, and Fang Peng. "Simulation of Steady-State Temperature Rise of Electric Heating Field of Wireless Sensor Circuit Fault Current Trigger." Journal of Sensors 2021 (September 30, 2021): 1–11. http://dx.doi.org/10.1155/2021/8359504.

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This article analyzes the structure of the wireless sensor circuit, considering the balance of power consumption, integration, area, noise, etc., and adopts a radio frequency wireless sensor circuit with a low-IF structure. Through the analysis and comparison of traditional analog current trigger and digital current trigger structure, the feed-forward current trigger structure is selected, which is composed of received signal strength indicator (RSSI) and variable gain amplifier (VGA), which achieves low power consumption, fast stabilization time, and wide dynamic range design. The received si

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Dong, Liang, Kangqi Fan, Yuhang Feng, et al. "Preparation Technology of Stretchable Electrode Based on Laser Cutting." Machines 10, no. 10 (2022): 854. http://dx.doi.org/10.3390/machines10100854.

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Wearable electronics have showed their profound impact in military, sports, medical and other fields, but their large-scale applications are still limited due to high manufacturing costs. As an advanced micro-fabrication process, laser processing technology has the advantages of high speed, high flexibility, strong controllability, environmental protection and non-contact in preparing micro-nano structures of wearable electronics. In this paper, a 355 nm ultraviolet laser was used to pattern the copper foil pasted on the flexible substrate, and the interconnection electrodes and wires were con

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Kondapalli, Soumya, Arjuna Madanayake, and Len Bruton. "Digital Architectures for UWB Beamforming Using 2D IIR Spatio-Temporal Frequency-Planar Filters." International Journal of Antennas and Propagation 2012 (2012): 1–19. http://dx.doi.org/10.1155/2012/234263.

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A design method and an FPGA-based prototype implementation of massively parallel systolic-array VLSI architectures for 2nd-order and 3rd-order frequency-planar beam plane-wave filters are proposed. Frequency-planar beamforming enables highly-directional UWB RF beams at low computational complexity compared to digital phased-array feed techniques. The array factors of the proposed realizations are simulated and both high-directional selectivity and UWB performance are demonstrated. The proposed architectures operate using 2's complement finite precision digital arithmetic. The real-time through

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Ladvánszky, János. "Noise reduction for digital communications – A modified Costas loop." Infocommunications journal, no. 4 (2020): 2–5. http://dx.doi.org/10.36244/icj.2020.4.1.

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An efficient way of noise reduction has been presented: A modified Costas loop called as Masterpiece. The basic version of the Costas loop has been developed for SSB SC demodulation, but the same circuit can be applied for QAM demodulation as well. Noise sensitivity of the basic version has been decreased. One trick is the transformation of the real channel input into complex signal, the other one is the application of our folding algorithm. The result is that the Masterpiece provides a 4QAM symbol error rate (SER) of 6*10-4 for input signal to noise ratio (SNR) of -1 dB. In this paper, an imp

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Itoh, Makoto, and Leon Chua. "Chaotic Oscillation via Edge of Chaos Criteria." International Journal of Bifurcation and Chaos 27, no. 11 (2017): 1730035. http://dx.doi.org/10.1142/s021812741730035x.

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In this paper, we show that nonlinear dynamical systems which satisfy the edge of chaos criteria can bifurcate from a stable equilibrium point regime to a chaotic regime by periodic forcing. That is, the edge of chaos criteria can be exploited to engineer a phase transition from ordered to chaotic behavior. The frequency of the periodic forcing can be derived from this criteria. In order to generate a periodic or a chaotic oscillation, we have to tune the amplitude of the periodic forcing. For example, we engineer chaotic oscillations in the generalized Duffing oscillator, the FitzHugh–Nagumo

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Kong, Gaoyang, Qing Ouyang, Hongsheng Hu, Wenfeng Xiang, and Wei Zhao. "Structural Design and Controllability of Magnetorheological Grease Buffers under Impact Loading." Materials 16, no. 13 (2023): 4724. http://dx.doi.org/10.3390/ma16134724.

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Shock loads can pose a great threat to personnel or instruments, and efficient control of the buffering process is an effective means of reducing damage from shock energy. In this paper, magneto-rheological grease was used as the internal controllable material of the buffer to address the turbulence and settling problems of conventional magneto-rheological fluid. A bending and folding back magnetic circuit is proposed, and the magnetic circuit simulation was verified. The corresponding dynamic mechanical model was established, and the mechanical response characteristics of the buffer under imp

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Hu, Yanzhong, and Nahid F. Mivechi. "Association and Regulation of Heat Shock Transcription Factor 4b with both Extracellular Signal-Regulated Kinase Mitogen-Activated Protein Kinase and Dual-Specificity Tyrosine Phosphatase DUSP26." Molecular and Cellular Biology 26, no. 8 (2006): 3282–94. http://dx.doi.org/10.1128/mcb.26.8.3282-3294.2006.

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ABSTRACT The heat shock transcription factors (Hsfs) activate the stress-inducible expression of heat shock proteins (Hsps) and other molecular chaperones in response to stress and, therefore, play an essential role in protein disaggregation and protein folding. In humans, missense mutation in the hsf4 gene causes cataract, and mice bearing a targeted disruption of the hsf4 gene exhibit defects in lens fiber cell differentiation and early cataract formation. Here, we show that Hsf4b is a direct target of the mitogen-activated protein (MAP) kinase extracellular signal-related kinase (ERK) and t

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Diedrichs, Danilo R., Javier A. Gomez, Chun-Sing Huang, D. Thomas Rutkowski, and Rodica Curtu. "A data-entrained computational model for testing the regulatory logic of the vertebrate unfolded protein response." Molecular Biology of the Cell 29, no. 12 (2018): 1502–17. http://dx.doi.org/10.1091/mbc.e17-09-0565.

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The vertebrate unfolded protein response (UPR) is characterized by multiple interacting nodes among its three pathways, yet the logic underlying this regulatory complexity is unclear. To begin to address this issue, we created a computational model of the vertebrate UPR that was entrained upon and then validated against experimental data. As part of this validation, the model successfully predicted the phenotypes of cells with lesions in UPR signaling, including a surprising and previously unreported differential role for the eIF2α phosphatase GADD34 in exacerbating severe stress but ameliorat

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Gangwar, AK, and MS Alam. "Folded monopole antenna with CSRRS for tri-band applications." International Journal of Engineering & Technology 7, no. 4.5 (2018): 514. http://dx.doi.org/10.14419/ijet.v7i4.5.21146.

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In this paper, a miniaturize folded monopole antenna with complementary split ring resonator (CSRR) is proposed for tri-band applications. In the design procedure of the antenna, first a single band monopole antenna is designed for 2.88 GHz. For design a single band to dual band, the both arms of the radiating element (i.e. Monopole) is folded then it is resonated at 2.68GHz and 5.15GHz resonance frequencies, the resonance of the lower frequency is based on length of the monopole and higher order resonance is excited due to its folding effect. In order to extend its resonances for tri-band ope

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