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检索条件"任意字段=Conference on Current Developments in Optical Design and Engineering V"

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Sustainable design Process Management in a vUCA-World - A Survey on Risk and Technical Change Management in Automotive Industry 34

Sustainable Design Process Management in a VUCA-World - A Su...

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34th CIRP design conference, CIRP 2024

作者： Lechner, Jennifer Schlüter, Nadine Fahrner, Achim ZF Friedrichshafen AG Löwentaler Straße 20 Friedrichshafen88046 Germany University of Wuppertal Gaußstraße 20 Wuppertal42119 Germany

Being sustainable is one of today's greatest challenges in the design process for the automotive industry. Upcoming trends in market and technology, disruptive changes (i.e., autonomous driving) as well as vUCA-factors aggravate the demand for flexibility, resilience, and sustainability in a system development. Sustainability in engineering and product design also requires corresponding processes to establish a framework and moreover a guideline. This exploration represents results out of a survey as part of a wider research. The investigation is based on state-of-the-art literature resulting in an empirical study. Objective is the development of a sustainable process orientated method for risk and technical change management for system development projects in a vUCA-world. The considered aspects are complexity, (re-) action, quality, Generic Systems engineering, and vUCA. The involvement of a transdisciplinary system development team supports the creation of a powerful method: Combining experiences, different perspectives, as well as considering existing pain points and hints of optimisation potentials. In summary, this elaboration presents information on the current situation as well as applicability of defined aspects for a powerful method. Concluding, this publication provides information on the considering elements to design a sustainable process model for risk and technical change management, for system developments in automotive industry. © 2024 Elsevier B.v.. All rights reserved.

关键词： Automotive industry

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GaAs Truncated Cone Nanowire Array-Based Solar Cells with Carrier Selective Contacts 24

GaAs Truncated Cone Nanowire Array-Based Solar Cells with Ca...

引用

24th IEEE International conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2024

作者： Sagar, Sumit Rautela, Manisha Kumar, Jitendra Kumar, Amitesh Mukhopadhyay, Samrat Department of Electronics Engineering Jharkhand Dhanbad826004 India

ISBN: (纸本)9798350390537

Recent advancements in solar cell technology have unveiled the potential of nanowire (NW) structures, particularly those incorporating III-v materials, for enhanced light absorption and reduced material consumption compared to traditional planar designs. Our research introduces a novel core-shell heterojunction design featuring a p-type GaAs truncated cone NW core and ShN4/TiO2 shell. In this study, the short-circuit current density (Jsc), open-circuit voltage (voc), power conversion efficiency (PCE) and fill factor (FF) are evaluated to determine the optoelectronic performance of the investigated NWs. Through comprehensive simulations, it has been demonstrated that the optimized structure significantly reduces optical losses and improves minority carrier transport, achieving a power efficiency of 22.487% with an enhancement of 49.74% over conventional truncated cone NWs. This innovative approach yielded a short circuit current density of 26.45 mA/cm2, marking a significant advancement in radial junction NW solar cells. © 2024 IEEE.

关键词： III-v semiconductors

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Co-design of 300 mm Wafer Scale Package 23

Co-Design of 300 mm Wafer Scale Package

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23rd IEEE Intersociety conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2024

作者： Schleupen, Kai Colgan, Evan G. Anzola, Diego Kuder, Robert P. Mann, Phillip Pear, Brian Speidell, James L. Ibm T.J. Watson Research Center 1101 Kitchawan Road Yorktown HeightsNY10598 United States Ibm Systems Infrastructure 2800 37th Street NW RochesterMN55901 United States

ISBN: (纸本)9798350364330

A novel packaging configuration was developed for a 300 mm wafer scale system. A number of these systems have been operated at power levels up to about 16 kW for over a year using a thermal test wafer. The power subsystem can provide a total of 22.5 kA of current for the 0.8 v and 1.2 v power domains to the wafer, and the I/O subsystem can provide an aggregate system bidirectional bandwidth of 128 GByte/s using PCIe Gen3 optical links, and a local HBM bandwidth through the laminate of 512 GByte/s per reticle site and 37.9 TByte/s per wafer. The system is nearly all water cooled. © 2024 IEEE.

关键词： Chip scale packages

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optical and Electrical Characterization of Single-Photon Avalanche Diodes Fabricated in CMOS Technology

Optical and Electrical Characterization of Single-Photon Ava...

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2024 IEEE International conference on Consumer Electronics-Asia, ICCE-Asia 2024

作者： Park, Eunsung Choi, Woo-Young Lee, Myung-Jae Yonsei University Department of Electrical and Electronic Engineering Seoul Korea Republic of

ISBN: (纸本)9798331530839

This paper presents the design, fabrication, and characterization of single-photon avalanche diodes (SPADs) fabricated in 110 nm CMOS technology, optimized for photon-counting imaging and LiDAR applications. The SPADs are designed with active region sizes of 5 μm, 10 μm, 15 μm, and 20 μm, and feature a retrograde virtual guard-ring (GR) structure to prevent premature edge breakdown. Electrical and optical characteristics, including current-voltage (I-v) curve, dark count rate (DCR), and photon detection probability (PDP), were measured to evaluate the performance of SPADs. © 2024 IEEE.

关键词： CMOS integrated circuits

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design of UAv onboard 5G intelligent terminal 5

Design of UAV onboard 5G intelligent terminal

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5th International conference on Computer Communication and Network Security, CCNS 2024

作者： Lan, Dun Tang, Bing Lin, Ji Deng, Jiugen Wu, Yunjiang Niu, Rui Xu, Xiaodong Zhang, Yufei China Mobile Chengdu Institute of Research and Development Sichuan Chengdu China

ISBN: (纸本)9781510681842

As drone technology rapidly evolves, the limitations of current communication systems, particularly regarding flight distance, bandwidth, and latency, become increasingly evident. This study addresses these challenges by integrating 5G technology with unmanned aerial vehicle (UAv) systems. Our approach employs a 300-meter aerial 5G network coupled with an advanced onboard 5G intelligent terminal, significantly improving drone communication. The paper details the terminal's hardware and software architecture, emphasizing enhancements in processing, interface configurations, environmental adaptability and cutting-edge software design. Extensive testing across various conditions demonstrates the system's robustness, efficiency, and adaptability, notably in maintaining stable communication across diverse environments. This research contributes to global sustainable technology trends and paves the way for future developments, such as the integration of artificial intelligence, machine learning, and the Internet of Things. This represents a pivotal advancement in UAv technology and its applications. © 2024 SPIE.

关键词： Drones

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design of an optical Receiver for Multi-core optical Fiber 8

Design of an Optical Receiver for Multi-core Optical Fiber

引用

8th International conference on Communication, Image and Signal Processing, CCISP 2023

作者： Yu, Xuan Xin, Mingju Lin, Kai Li, Jiajin Chen, Kaizhuo Deng, Shijie School of Optoelectronic Engineering Guilin University of Electronic Technology Guilin China

ISBN: (纸本)9798350305838

This paper presents an optical receiver designed to match multiple core optical fiber, implemented in a 0.18 $\mu\mathrm{m}$ CMOS process. The chip consists of a photodiode (PD) array and transimpedance (TIA) circuits, including the TIA core, Bandgap (BG) and Bias. The placement of PD array is highly matched with the multiple core optical fiber and each PD is followed by a TIA. The TIA achieves a 60 dB ohm transimpedance gain with a 200 MHz bandwidth and the input reference current noise is $7.2 \text{pA} / \sqrt{ } \text{Hz}$. The BG can stably output a 1.2 v voltage and shows a good stability in the post simulation under 128 process corners. The Bias can provide the current required to drive TIA through a mirror transistor. Eye diagrams are shown when operating at bit rates of 200 M bps and 300 M bps with a forward input reference voltage of 1.2 v. While achieving high transmission efficiency, the chip area is only $0.78\times 0.92$ mm2 which allows for more compact designs and suit for a wide range of application scenarios. © 2023 IEEE.

关键词： optical fibers

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design of Fuzzy Logic Controller For Solar Powered Electric vehicle

Design of Fuzzy Logic Controller For Solar Powered Electric ...

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2022 International conference on Emerging Materials for Technological Applications, ICEMTA 2022

作者： Yekambareswari, Bhogireddy Kumar, G.v. Nagesh Yamuna, P. Sateesh Satyanarayana, v.S.v. Sudha, v. Naga JNTUA College of Engineering Andra Pradesh Pulivendula India Vignan’s Institute of Information Technology Visakhapatnam India

ISBN: (纸本)9781510667648

In this paper, an Ev battery-based energy storage microgrid is controlled by the fuzzy logic controller, which we use as the backbone of an intelligent energy management system (EMS). Plug-in electric vehicles (Evs) can join the microgrid via a DC rapid charging station. Fuzzy logic controllers are used for each Ev's estimated departure time, battery charge level, and rated capacity to calculate how much power of each Ev can provide tov2G (vehicle-to-grid) and G2v (grid-to-vehicle) services. An array of solar panels and a battery attached to the Microgridthrough a bidirectional dime converter and a boost converter are the core components of the PvDCM. Both positive and negative currents can move from the power source tothe load whether the Pv panels are set up for Maximum power point tracking (MPPT) or maximum voltage operation. To maximize efficiency in the faceof high input current and low input voltage, a new design for a solar the DC/DC converter is givenin this paper. However, thehigh DC/DC converter output power means that a big value of the input current is to be expected, which will possess adetrimental impact on the circuit design and the system's stability. In addition to being able to accept a wide variety of input voltage while maintaining a constant output voltage, the DC/DC converter is protecting the battery from being exposed to an output current, and improves the battery's useful life. Inverter current must be tracked and converted from abc to dq0 for this method to work (Clarke and Park transformation). Here the, two orthogonal phase variables for a Fuzzy controller are carried out by the Park transformation (DQ) on a single-phase inverter. © 2023 SPIE.

关键词： Solar panels

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optical simulation supported development of a dual channel photoelectric smoke detector 10

Optical simulation supported development of a dual channel p...

引用

conference on Photonic Instrumentation engineering X

作者： Stottinger, Sven Ju, Jin Han De Guzman, Yvette Marie Ocampo, Glaiza Rose So, Ken Ryner Sarrate, Marvin Cemine, vernon Julius Excelitas Technol GmbH & Co KG Wenzel Jaksch Str 31 D-65199 Wiesbaden Germany Excelitas Technol Inc 22001 Dumberry Rd Vaudreuil Dorion PQ J7V 8P7 Canada Excelitas Technol Philippines Inc 3 Ampere StLight Ind & Sci Pk 1 Cabuyao City 4025 Laguna Philippines

ISBN: (纸本)9781510659612;9781510659629

The latest changes to the UL-217 & UL-268 standards challenge current and existing smoke detectors and necessitate the development of better performing devices that are more sensitive towards polyurethane fires and simultaneously more resistant to nuisance alarms. Possible design strategies that include multi-color or multi-angle scattering techniques further increase the complexity and requirements for new detectors. optical simulation is a key instrument for the design and development phase to improve the performance of photoelectric smoke detectors to meet the more stringent requirements. Going hand in hand with vertical manufacturing that allows detailed knowledge and control of each component the goal was to build an optical model that strives for achieving qualitative and quantitative performance predictions. This model starts from the optoelectronic component level and goes up to the fully assembled smoke module. We tested the optical model against experimental data of an existing photoelectric smoke detector and improved it to show convergence between simulated and experimentally measured data. On this basis, we investigated and optimized key optical design parameters to achieve better signal-to-background levels that pave the way for enhanced smoke sensitivity and an easier discrimination between smoke sources and non- hazardous nuisance sources. The optimization of interaction volumes, wavelength dependent scattering angles, and surface features that directly control the path of light with the consideration of manufacturability and robustness against assembly tolerances was of particular interest. The outcome of this process is an optimized dual color smoke detector whose performance is consistent with the predictions of our optical model.

关键词： smoke detection dual wavelength optic simulation UL 217 UL 268 design tools

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Heat dissipation design and research of all-solid-state DC circuit breaker based on IGCT 3

Heat dissipation design and research of all-solid-state DC c...

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3rd International conference on Advanced Manufacturing Technology and Manufacturing Systems, ICAMTMS 2024

作者： Huang, Zhiling Li, Siyang Wang, Xingjia Wang, Yongle Cong, Shibo Deng, Yuan Fan, Naiyuan Pinggao Group Co. Ltd. Beijing China China Electric Power Equipment and Technology Co. Ltd. Beijing China

ISBN: (纸本)9781510681804

In this paper, a forced air cooling all-solid-state DC circuit breaker (voltage level DC750v, rated current DC1000A) for low-voltage distribution system is developed. Its core heating component is IGCT assembly, which consist of 2 IGCTs in parallel and 2 IGCTs in reverse parallel, then assembled with a radiator, which is composed of press-blocks, gravity heat pipes and heat fins. The test results show that the heat dissipation scheme can meet the requirements of all-solid-state DC circuit breaker. © 2024 SPIE.

关键词： Heat pipes

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A High Power Supply Rejection LDO with Feed-forward Ripple Cancellation

A High Power Supply Rejection LDO with Feed-forward Ripple C...

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2022 International conference on Neural Networks, Information, and Communication engineering, NNICE 2022

作者： Lu, Zhichao Huang, Shengming Duan, Quanzhen School of Integrated Circuit Science and Engineering Tianjin University of Technology Tianjin300384 China

ISBN: (纸本)9781510655171

In this design, a 0.35um BCD process is used to design a high power supply rejection ratio LDO with feed-forward ripple elimination. By analyzing the power supply noise interference, a feed-forward ripple elimination circuit is used to reduce the power supply noise on the output. In order to ensure that the LDO has a high power supply rejection ratio in a wide load range, the output voltage of the LDO is 1.8v, the input voltage range is 2.5v to 5v, the load current range is 0 to 20mA, and the quiescent current is less than 80μA. The simulation results show that when the input voltage is 5v, the PSRR at low frequency at no load is 114dB, and the PSRR at 10 kHz is 77dB;when the load is 20mA, the PSRR at low frequency is 104dB, and the PSRR at 10 kHz is 72dB. © 2022 SPIE.

关键词： optical engineering

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