Removal of pyrene from aqueous solutions by adsorption onto Brazilian peat samples by Francine Girardello, Suzimara Rovani, Marcelo Giovanela, Andreia Neves Fernandes

“…Among them, adsorption techniques employing natural adsorbents as peat represent an attractive alternative due to its low cost and high removal efficiency. In the present study, two samples (decomposed peat – DP, and fibrous peat – FP) were used to remove pyrene at concentrations of 1.0, 2.0, 3.0, 4.0, and 5.0 µg L −1 for up to 72 h. …”
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Research Progress on Oxygen Reduction Catalyst Materials for Proton Exchange Membrane Fuel Cells by Cao Beiheng

“…Therefore, it is essential to develop stable and low-cost cathode catalysts. This paper reviews the advancements in cathode catalysts for PEMFCs, encompassing traditional platinum-based catalysts and their enhancement strategies, as well as the current status of emerging non-platinum-based catalysts. …”
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Fabrication of Hybrid Organic Photovoltaic Devices Using Electrostatic Spray Method by Zhe-Wei Chiu, Yu-Jen Hsiao, Te-Hua Fang, Liang-Wen Ji

“…The device takes advantage of the high current density, power conversion efficiency, and low cost. Nanodiamond improves the short-circuit current density and power conversion efficiency. …”
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Modified Granular Activated Carbon: A Carrier for the Recovery of Nickel Ions from Aqueous Wastes by D. Satapathy, G.S. Natarajan, Raja Sen

“…Granular Activated Carbon (GAC) is widely used for the removal and recovery of toxic pollutants including metals because of its low cost and high affinity towards the scavenging of metal ions. …”
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Spiral Slotted Microstrip Antenna Design for 700 MHz Band Application by Ricardo Meneses González, R. Linares y Miranda, R. Leyva Hernández

“…This technological advance represents a radio mobile antenna design challenge because it is necessary to design an antenna whose dimensions must be small enough, which satisfies gain, resonance frequency, and bandwidth requirements and is of low cost.…”
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The study of plant growth promoter production from leather industrial solid waste by John Sundar

“…Purpose The leather industry produces huge quantities of proteinous solid wastes and is being dumped or improperly utilized resulting in economical losses or causing an environmental problem. An efficient, low-cost procedure was developed to convert animal fleshings into plant growth promoters (PGP).Method The fleshings were hydrolyzed and analyzed for moisture, fat, ash, and nitrogen contents. …”
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Toward Dynamic Monitoring and Suppressing Uncertainty in Wildfire by Multiple Unmanned Air Vehicle System by Sharon Rabinovich, Renwick E. Curry, Gabriel H. Elkaim

“…This study thus suggests that an efficient solution for suppressing uncertainty in monitoring a wildfire is to use a fleet of low-cost unmanned aerial vehicles that can be deployed quickly. …”
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Fabrication and Optoelectrical Properties of IZO/Cu2O Heterostructure Solar Cells by Thermal Oxidation by Cheng-Chiang Chen, Lung-Chien Chen, Yi-Hsuan Lee

“…Indium zinc oxide (IZO)/cupper oxide (Cu2O) is a nontoxic nature and an attractive all-oxide candidate for low-cost photovoltaic (PV) applications. The present paper reports on the fabrication of IZO/Cu2O heterostructure solar cells which the Cu2O layers were prepared by oxidation of Cu thin films deposited on glass substrate. …”
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A Review of the Flammability Factors of Kenaf and Allied Fibre Reinforced Polymer Composites by C. H. Lee, Mohd Sapuan Salit, M. R. Hassan

“…Natural fibre has fast growing and abundance properties which make it available at very low cost. For kenaf fibre there is long lists of research projects which have been done regarding its behaviour, and properties and modification made to it. …”
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<i>Galleria mellonella</i> (Greater Wax Moth) as a Reliable Animal Model to Study the Efficacy of Nanomaterials in Fighting Pathogens by Stefania Villani, Matteo Calcagnile, Christian Demitri, Pietro Alifano

“…In this context, <i>Galleria mellonella</i> could represent a valid alternative to traditional mammalian and non-mammalian animal models, due to its low cost, ease of handling, and valuable biological properties to investigate host–pathogen interactions. …”
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Power Allocation Technology of Long Time Multi-Star Hopping Beam for LEO Satellite by Ziyi LIU, Xiaoning ZHANG, Zesong FEI

“…LEO satellites have superior development prospects due to their low cost, low latency and small path loss, and are widely used in IoT, B5G and other fields.For the LEO satellite and its coverage area will be in a moving state, a convex optimization-based long-time multi-star beam hopping power allocation algorithm was proposed to maximize the system capacity.Focused on the multi-star hopping beam scenario over a period of time, a system model was developed based on the long-time co-orbital multi-star hopping beam scenario and the long-time heterodyne multi-star hopping beam scenario respectively.The resource allocation algorithm was designed for the two long-time multi-star hopping beams with the weighted objective function as the optimization objective, considered the influence factors of inter-star interference, load balancing and inter-star resource allocation priority, a long-time skipping beam resource allocation algorithm based on convex optimization was proposed.The simulation results showed that the proposed scheme could improve the resource utilization of the system compared with the conventional schemes.…”
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Toward More Efficient and More Secure Last Mile Smart Metering and Smart Lighting Communication Systems with the Use of PLC/RF Hybrid Technology by Piotr Kiedrowski

“…The use of hybrid technology makes the system more efficient and more secure (still being of low cost, in terms of both implementation and operation). …”
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Finite Element Analysis of a Natural Fiber (Maize) Composite Beam by D. Saravana Bavan, G. C. Mohan Kumar

“…These fibers are green, biodegradable, and recyclable and have good properties such as low density and low cost when compared to synthetic fibers. The present work is investigated on the finite element analysis of the natural fiber (maize) composite beam, processed by means of hand lay-up method. …”
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Alginate Production from Alternative Carbon Sources and Use of Polymer Based Adsorbent in Heavy Metal Removal by Çiğdem Kıvılcımdan Moral, Merve Yıldız

“…In order to reduce the cost of bacterial alginate production, molasses, maltose, and starch were utilized as alternative low cost carbon sources in this study. Results were promising in the case of molasses with the maximum 4.67 g/L of alginate production. …”
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Finite Element and Multibody Dynamics Analysis of a Ball Mill Glass Crusher by Jihad Rishmany, Rodrigue Imad

“…Within this context, the objective of this work is to design a low-cost glass crusher machine that can be acquired by individuals. …”
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Engineering Properties and Applications of Air-Foamed Lightweight Soil by Xuze Yuan, Zheng Lu, Hailin Yao, Xianjun Tan, Yang Zhao, Chuxuan Tang, Ming Cheng, YiPeng Gao

“…Air-foamed lightweight soil, which is produced using low-cost raw materials and has a lower density varying from 300 to 1800 kg/m3, adjustable strength, excellent thermal isolation, and a more straightforward construction method, has emerged as a worthy candidate. …”
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Integrated Miniature Multiband Antenna Designed for WWD and SAR Assessment for Human Exposure by Brahim Fady, Jaouad Terhzaz, Abdelwahed Tribak, Fatima Riouch

“…The article introduces a new, low-cost, integrated, multiband antenna design intended for wristbands and wearable wireless devices (WWD). …”
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Microstrip Folded Dipole Antenna for 35 GHz MMW Communication by Guang Hua, Chen Yang, Ping Lu, Hou-Xing Zhou, Wei Hong

“…The folded dipole antenna has the advantage of small size, low profile, low cost, and so forth. The measured results show that a miniaturized antenna has the bandwidth of more than 14.2% (VSWR ≤ 2); gain of the antenna is 5.7 dB at 35 GHz.…”
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International Coordination and Support for SmallSat‐Enabled Space Weather Activities by Teresa Nieves‐Chinchilla, Bhavya Lal, Robert Robinson, Amir Caspi, David R. Jackson, Therese Moretto Jørgensen, James Spann

“…We identify six areas where improved international coordination is especially desirable, including (1) orbital debris mitigation; (2) spectrum management; (3) export control regulations; (4) access to timely and low‐cost launch opportunities; (5) inclusive data policies; and (6) education. …”
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Analysis of Stress Characteristics and the Engineering Application of the Self-Balancing Retaining Wall by Fei Gan, XiaoMing Ye, Ke Yin, Meilin Li, Jing Bi

“…The results show that the idea of using upper gravity retaining wall as the resistance of lower retaining wall is clever and reasonable that the self-balance retaining wall has a very wide scope of application relying on the anchor tensile conditions rarely and that the self-balance retaining wall has a great economic value with low cost. The cost of the self-balance retaining wall is 50% compared with the cantilever pile retaining wall under the same conditions which has a good economic effect and application prospect.…”
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