Design of Single Feed, Dual-Band Circularly Polarized Quad-Mode Slot Antenna Using Coupled Mode Theory by Mekaladevi V, Natarajamani S

“…The excitation of the rectangular slot antenna maintains a small frequency ratio by generating two modes at closely spaced frequencies through characteristic mode analysis (CMA) and coupling mode theory (CMT). …”
Get full text

The Icing Characteristics of Post Insulators in a Natural Icing Environment by Zhijin Zhang, Jiahui Tu, Yuanpeng Zhang, Xingliang Jiang, Zhenbing Zhu

“…Currently, most research on the flashover characteristics of insulators under icing conditions focuses on artificially iced suspension insulators, with limited studies on post insulators under natural icing conditions. The shed spacing of post insulators is smaller, making them more prone to bridging by icicles in the same icing environment, which exacerbates insulation problems. …”
Get full text

Assessment of the Correspondence Between User Needs and Classroom Design Criteria for Pre-Schoolers with Autism Spectrum Disorder in Turkey by ABDALLAH Luqmaan Fihri, ERÇİN Çilen

“…The study recommends enhancing classroom design by increasing group work areas, providing quiet spaces and cloakrooms, incorporating visual cues, improving acoustics, optimizing natural lighting, increasing access to outdoor play areas, and providing financial support for necessary tools like computers. …”
Get full text

Design of Direct Current Microgrid Converter with Cost-Effective Low-Voltage Battery Storage System by Juraj Tvarožek, Michal Prazenica, Tomáš Paulec, Slavomir Kaščák, Patrik Resutík

“…This makes the system suitable for use in small spaces such as houses, garages, cellars, etc.…”
Get full text

Study on the Full‐Cycle Stress Evolution Law and Reasonable Size of Isolated Coal Pillar by Xiao‐Xiang Wei, Qing‐Long Yun, Jing Wu, Xiao‐He Wang, Yin‐Wei Wang

“…ABSTRACT To study the stress distribution law under different mining times and spaces of the protected coal pillar in the isolated working face, this paper takes a coal mine in Shanxi as the engineering background and adopts numerical simulation and theoretical analysis to obtain the stress distribution law of protecting coal pillar in the isolated working face during the tunneling period and the mining period of the working face, and proves the reasonable size of protecting coal pillar. …”
Get full text

Real-World Effectiveness of Portable Air Cleaners in Reducing Home Particulate Matter Concentrations by Frederic T. Lu, Robert J. Laumbach, Alicia Legard, Nirmala T. Myers, Kathleen G. Black, Pamela Ohman-Strickland, Shahnaz Alimokhtari, Adriana de Resende, Leonardo Calderón, Gediminas Mainelis, Howard M. Kipen

“…However, the performance of PACs in naturalistic settings and spaces beyond the room containing the PAC is not well characterized. …”
Get full text

Effects of Friction Plate Hardness and Surface Orientation on the Frictional Properties of Cereal Grain by Zdzisław Kaliniewicz, Krzysztof Jadwisieńczak, Zbigniew Żuk, Stanisław Konopka, Adam Frączyk, Zbigniew Krzysiak

“…The experimental material comprised the so-called flat seed units, where each unit consisted of three spaced kernels. The angle of static friction of every flat seed unit was measured with a dedicated device in three replications, and average values of that angle were calculated. …”
Get full text

Double Security Level Protection Based on Chaotic Maps and SVD for Medical Images by Conghuan Ye, Shenglong Tan, Jun Wang, Li Shi, Qiankun Zuo, Bing Xiong

“…Experimental results demonstrate the superiority of the proposed method in key spaces (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>225</mn></msup></semantics></math></inline-formula>), PSNR (76.2543), and UACI (0.3329). …”
Get full text

Three-Dimensional Morphology and Connectivity of Organic Pores in Shale from the Wufeng and Longmaxi Formations at the Southeast Sichuan Basin in China by Tao Jiang, Zhijun Jin, Zongquan Hu, Wei Du, Zhongbao Liu, Jianhua Zhao

“…The organic pores in pyrobitumen have the best connectivity and are the most favorable reservoir spaces and migration channels for shale gas, which is a crucial point of reference for future research of shale gas.…”
Get full text

Research on Integrated Control Strategy for Highway Merging Bottlenecks Based on Collaborative Multi-Agent Reinforcement Learning by Juan Du, Anshuang Yu, Hao Zhou, Qianli Jiang, Xueying Bai

“…By transforming the control framework into a Decentralized Partially Observable Markov Decision Process (Dec-POMDP), state and action spaces for heterogeneous agents are designed. These agents dynamically adjust control strategies and control area lengths based on real-time traffic conditions, adapting to the changing traffic environment. …”
Get full text

Small-scale land use effects on plant communities in Mediterranean urban ecosystems by Vincenzo Baldi, Alessandro Bellino, Daniela Baldantoni

“…The main drivers of biodiversity appear to be a combination of anthropogenic pressures (e.g. trampling/soil sealing) and the presence/absence of canopy shading, determining higher abundances of therophytes (especially Asteraceae and Poaceae) in open and trampled spaces and a proportional increase in hemichryptophytes under canopies. …”
Get full text

A review of chronic wasting disease (CWD) spread, surveillance, and control in the United States captive cervid industry by Jameson Mori, Nelda Rivera, Jan Novakofski, Nohra Mateus-Pinilla

“…This disease threatens the health and economic viability of the captive cervid industry, which raises cervids in contained spaces for purposes such as hunting and breeding. …”
Get full text

Clinical Report of a 17q12 Microdeletion with Additionally Unreported Clinical Features by Jennifer L. Roberts, Stephanie K. Gandomi, Melissa Parra, Ira Lu, Chia-Ling Gau, Majed Dasouki, Merlin G. Butler

“…We present a tall-appearing 17-year-old boy with marfanoid habitus, hypermobile joints, mild scoliosis, pectus deformity, widely spaced nipples, pes cavus, autism spectrum disorder, intellectual disability, and psychiatric manifestations including physical and verbal aggression, obsessive-compulsive behaviors, and oppositional defiance. …”
Get full text

Numerical and graphical description of all axis crossing regions for moduli 4 and 8 which occur befor 1012 by Carter Bays, Richard H. Hudson

“…Negative values of Δ4(x,3,1) less than 1012 occur in six widely spaced regions. The first three regions, investigated by Leech [6], Shanks [9] and Lehmer [6 ], contain only a few thousand negative values of Δ4(x,3,1). …”
Get full text

Is the Children’s 15-Minute City an Effective Framework for Enhancing Children’s Health and Well-Being? An Empirical Analysis from Western China by Xiao Wang, Jingping Huang, Zhengyou Qin, Wei Gan, Zhen He, Xiang Li

“…Furthermore, it suggests the effective utilization of urban landscapes to create a diverse system of leisure spaces for children. This study offers valuable insights for enhancing the walkability of urban life circle service facilities and establishing a child-friendly city.…”
Get full text

Zakat-based urban farming: A tool for poverty alleviation, community empowerment, financial inclusion, and food security by Kinan Salim, Baharom Abdul Hamid, Ziyaad Mahomed, Wiaam Hassan

“…Serving as a replicable blueprint, this project envisions the transformation of urban spaces into productive landscapes, thereby ensuring sustainable livelihood, amplifying food security, and promoting financial inclusion. …”
Get full text

BvBZR1 improves parenchyma cell development and sucrose accumulation in sugar beet (Beta vulgaris L.) taproot by Ningning Li, Wei Wang, Wei Wang, Xiaotong Guo, Yaqing Sun, Guolong Li, Shaoying Zhang

“…Transgenic sugar beet overexpressing BvBZR1 exhibited a higher taproot diameter compared with the wild type, mainly due to a significant enhancement in the spacing between cambial rings by increasing the size and layers of parenchyma cells. …”
Get full text

Single Pick Cutting Rock Load Identification Based on Improved Regularization Method by Lei Dong, Siyu Zhai, Bukang Wang, Liang Dong, Junyuan Wang, Ruimin Shi

“…By changing cutting speed, cutting angle, cutting spacing, and cutting depth of the single pick, the change trends of real cutting load and identification load were obtained. …”
Get full text

A Gas Seepage Modeling Study for Mitigating Gas Accumulation Risk in Upper Protective Coal Seam Mining Process by Cun Zhang, Lei Zhang, Mingxue Li, Chen Wang

“…The results have shown great agreement with obtained field measurements, which is done by combining the fitting curve of ventilation air methane quantity for PSWF with an interlayer spacing. A loss coefficient (δ) of 1.012 × 10−3 was obtained in this study.…”
Get full text

Investigation of Theoretical Models, Pumping-Recharge Well Arrangements and System Performance of Abandoned Mine Water Source Heat Pump by Zhiqiang Zhang, Wenchao Zu, Wenke Zhang, Kexun Wang, Xueqing Ma, Ping Cui

“…The influences of different recharge temperatures, pumping and recharging flow rates, well spacings, hydraulic gradients, aquifer thicknesses, porosities and other factors on the pumping temperature are studied according to the selected pumping and recharging well arrangement scheme. …”
Get full text