Zhizhang Chen
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View article: Analysis of risk factors associated with recurrence of granulomatous lobular mastitis and establishment of a prediction model
Analysis of risk factors associated with recurrence of granulomatous lobular mastitis and establishment of a prediction model Open
Independent risk factors for GLM recurrence include younger age, surgical treatment, nipple discharge on the affected side, and nipple inversion on the affected side. The nomogram based on these factors demonstrated good predictive value f…
View article: DS-DW-TimesNet-Driven Early Warning for Downhole Near-Bit Torque Vibrations
DS-DW-TimesNet-Driven Early Warning for Downhole Near-Bit Torque Vibrations Open
Downhole torsional vibrations, especially high-frequency torsional oscillations (HFTOs) and stick–slip phenomena, pose a serious threat to drilling operations, often resulting in tool damage, prolonged non-productive time, and significant …
View article: Analysis of the therapeutic effect and side effects of drug treatment for granulomatous lobular mastitis
Analysis of the therapeutic effect and side effects of drug treatment for granulomatous lobular mastitis Open
Objectives: To explore the risk factors that are associated to the recurrence of granulomatous lobular mastitis (GLM) after treatment and to develop a nomogram model that can predict the risk of recurrence. Methods: Medical records and fol…
View article: A LightGBM-Incorporated Absorbing Boundary Conditions for the Wave-Equation-Based Meshless Method
A LightGBM-Incorporated Absorbing Boundary Conditions for the Wave-Equation-Based Meshless Method Open
A LightGBM-Incorporated absorbing boundary condition (ABC) computation approach for the wave-equation-based the radial point interpolation meshless (RPIM) method is proposed to simulate wave propagation in open space during the computation…
View article: 2-bit Electrically Reconfigurable Reflectarray With Multi-Polarization Capability
2-bit Electrically Reconfigurable Reflectarray With Multi-Polarization Capability Open
In this paper, a low-complexity multi-polarization reconfigurable reflectarray antenna (RRA) with flexible 1- or 2-bit phase quantization is proposed, based on a PIN-tuned electrically rotatable element. The RRA element features an octagon…
View article: Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement
Unlock the Potentials of Large-Element-Spacing Arrays: A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement Open
Large-element-spacing (LES) antenna arrays present an attractive proposition with their cost-effectiveness and simplified structures. However, they often encounter the challenge of high-level grating lobes. This paper proposes a novel meta…
View article: The Low-Attenuation Endfire Leaky-Wave State on an Optically Transparent Lossy Film
The Low-Attenuation Endfire Leaky-Wave State on an Optically Transparent Lossy Film Open
The development of high-performance optically transparent radio frequency (RF) radiators is limited by the intrinsic loss issue of transparent conductive films (TCFs). Instead of pursuing expensive endeavors to improve the TCFs’ electrical…
View article: Advancements and Challenges in Electrical Impedance Myography (EIM): A Comprehensive Overview of Technology Development, Applications in Sports Health, and Future Directions
Advancements and Challenges in Electrical Impedance Myography (EIM): A Comprehensive Overview of Technology Development, Applications in Sports Health, and Future Directions Open
ElectricalImpedance Myography (EIM) is an innovative, non-invasive technique offering a convenient means of localized exogenous electrophysiological recording. By measuring muscle impedance parameters, this method characterizes the physiol…
View article: Transmissive invisibility cloak using phase gradient metasurfaces
Transmissive invisibility cloak using phase gradient metasurfaces Open
Different from the reflective approach of the carpet cloak designed to conceal surface irregularities on highly reflective surfaces, the transmission invisibility cloak, often capable of achieving perfect invisibility, operates within a tr…
View article: JailbreakLens: Visual Analysis of Jailbreak Attacks Against Large Language Models
JailbreakLens: Visual Analysis of Jailbreak Attacks Against Large Language Models Open
The proliferation of large language models (LLMs) has underscored concerns regarding their security vulnerabilities, notably against jailbreak attacks, where adversaries design jailbreak prompts to circumvent safety mechanisms for potentia…
View article: Design of Wideband Reflectarray and Transmitarray Antennas With Low Sidelobe and Cross-Polarization Levels Using a Multifunctional Ultrathin Metasurface
Design of Wideband Reflectarray and Transmitarray Antennas With Low Sidelobe and Cross-Polarization Levels Using a Multifunctional Ultrathin Metasurface Open
Ensuring a low cross-polarization level (CPL) is imperative in the design of antennas with a low sidelobe level (SLL). This paper introduces an innovative approach for designing wideband, high-gain, low-sidelobe, and low-cross-polarization…
View article: Transcriptome-based analysis of the effects of compound microbial agents on gene expression in wheat roots and leaves under salt stress
Transcriptome-based analysis of the effects of compound microbial agents on gene expression in wheat roots and leaves under salt stress Open
Introduction Salt stress inhibits the beneficial effects of most plant growth-promoting rhizobacteria. The synergistic relationship between beneficial rhizosphere microorganisms and plants helps achieve more stable growth-promoting effects…
View article: A Localization and Tracking System Using Single WiFi Link
A Localization and Tracking System Using Single WiFi Link Open
Like its outdoor counterpart (e.g., GPS), an indoor tracking system can bring about disruptive changes in how we live and work. This paper proposes a location and tracking system using a single WiFi link based on channel state information.…
View article: Methods for passivating silicon devices at low temperature to achieve low interface state density and low recombination velocity while preserving carrier lifetime
Methods for passivating silicon devices at low temperature to achieve low interface state density and low recombination velocity while preserving carrier lifetime Open
A new process has been developed to achieve a very low SiO.sub.x /Si interface state density D.sub.it, low recombination velocity S (5 ms) for oxides deposited on silicon substrates at low temperature. The technique involves direct plasma-…
View article: Toward the Development of a 3-D SBP-SAT FDTD Method: Theory and Validation
Toward the Development of a 3-D SBP-SAT FDTD Method: Theory and Validation Open
To enhance the scalability and performance of the traditional finite-difference time-domain (FDTD) methods, a 3-D summation-by-part simultaneous approximation term (SBP-SAT) FDTD method is developed to solve complex electromagnetic problem…
View article: Biocontrol and plant growth promotion by combined Bacillus spp. inoculation affecting pathogen and AMF communities in the wheat rhizosphere at low salt stress conditions
Biocontrol and plant growth promotion by combined Bacillus spp. inoculation affecting pathogen and AMF communities in the wheat rhizosphere at low salt stress conditions Open
Applying plant growth-promoting rhizobacteria (PGPR) improves the efficiency of soil-borne disease control and is considered a sustainable practice. However, the effect of PGPR on the fungal community, especially pathogenic fungi and arbus…
View article: An SIE Formulation with Triangular Discretization and Loop Analysis for Parameter Extraction of Arbitrarily Shaped Interconnects
An SIE Formulation with Triangular Discretization and Loop Analysis for Parameter Extraction of Arbitrarily Shaped Interconnects Open
A surface integral equation (SIE) formulation under the magneto-quasi-static assumption is proposed to efficiently and accurately model arbitrarily shaped interconnects in packages. Through decently transferring all electromagnetic quantit…
View article: A Hybrid SIE-PDE Formulation Without Boundary Condition Requirement for Transverse Magnetic Electromagnetic Analysis
A Hybrid SIE-PDE Formulation Without Boundary Condition Requirement for Transverse Magnetic Electromagnetic Analysis Open
A hybrid surface integral equation partial differential equation (SIE-PDE) formulation without the boundary condition requirement is proposed to solve the transverse magnetic (TM) electromagnetic problems. In the proposed formulation, the …
View article: Nonconformal Domain Decomposition Method Based on the Hybrid SIE-PDE Formulation for Flexible Transverse Magnetic Analysis
Nonconformal Domain Decomposition Method Based on the Hybrid SIE-PDE Formulation for Flexible Transverse Magnetic Analysis Open
A nonconformal domain decomposition method based on the hybrid surface integral equation partial differential equation (SIE-PDE) formulation is proposed to solve the transverse magnetic electromagnetic problems. In the hybrid SIE-PDE formu…
View article: Towards the Development of A Three-Dimensional SBP-SAT FDTD Method: Theory and Validation
Towards the Development of A Three-Dimensional SBP-SAT FDTD Method: Theory and Validation Open
To enhance the scalability and performance of the traditional finite-difference time-domain (FDTD) methods, a three-dimensional summation-by-parts simultaneous approximation term (SBP-SAT) FDTD method is developed to solve complex electrom…
View article: MTT-S TC-1 Field Theory and Computational EM Committee: Report for 2021 [MTT-S Society News]
MTT-S TC-1 Field Theory and Computational EM Committee: Report for 2021 [MTT-S Society News] Open
Presents the MTTS Field Theory and Computational EM Committee: Report for 2021.
View article: A SBP-SAT FDTD Subgridding Method Using Staggered Yee's Grids Without Modifying Field Components
A SBP-SAT FDTD Subgridding Method Using Staggered Yee's Grids Without Modifying Field Components Open
A summation-by-parts simultaneous approximation term (SBP-SAT) finite-difference time-domain (FDTD) subgridding method is proposed to model geometrically fine structures in this paper. Compared with our previous work, the proposed SBP-SAT …
View article: A Unified View of Computational Electromagnetics
A Unified View of Computational Electromagnetics Open
This article presents a unified description of numerical methods for solving electromagnetic field problems. Traditionally, these methods are considered to be independent and alternative ways of solving Maxwell's equations or equations der…
View article: A Fast Background Frequency Calibration Based on Intermittent Frequency Locked Loop for the Super-Regenerative Receive
A Fast Background Frequency Calibration Based on Intermittent Frequency Locked Loop for the Super-Regenerative Receive Open
The conventional phase-locked loops or frequency-locked loops should take time to calibrate the oscillator’s resonant frequency in a super-regenerative receiver (SRR) and severely disrupts the receiver’s operations. This paper proposes a n…