Study on diffusion bonding of composite metal foams by John Cance, Afsaneh Rabiei

“…Composite metal foams (CMF) exemplify these properties through unchallenged structural uniformity, enhanced by an arrangement of similar prefabricated hollow metal spheres suspended within a metallic matrix. …”
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Study on Zonal Cooperative Control Technology of Surrounding Rock of Super Large Section Soft Rock Chamber Group Connected by Deep Vertical Shaft by Shengrong Xie, Zaisheng Jiang, Dongdong Chen, En Wang

“…The influence mechanism of specific support technologies on the deformation control effect of surrounding rock of chamber group is systematically studied, including high-strength prestressed bolt (cable) mesh shotcreting coupling support technology, reinforced concrete wall subarea brickwork support technology, and hollow bolt (cable) grouting reinforcement technology of fragmented coal and rock mass. …”
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High-flux angularly uniform proton beams from multiple laser interaction with wire-hemisphere targets by Xiangrui Jiang, Debin Zou, Mingyang Yu, Na Zhao, Lixiang Hu, Jianming Ouyang, Fuqiu Shao, Wenhui Tang, Tongpu Yu

“…The laser-driven hot electrons from the front of the microwire hemisphere generate a hot-electron sheath in the hollow behind it, so that the protons on its back are accelerated by target normal sheath acceleration. …”
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Accuracy of Focused Assessment with Sonography for Trauma (FAST) in Blunt Abdominal Trauma by Tae Ah Kim, Junsik Kwon, Byung Hee Kang

“…In logistic regression analysis, hollow viscus injury (1.820 [1.123–2.949], P=0.015) and the lowest SBP (0.988 [0.980–0.997], P=0.009) were associated with true-positive results compared to false-negative results. …”
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Current advancements in microneedle technology for therapeutic and biomedical applications by Olivia Sen, Poulami Poddar, Poulami Sarkar, Sanchita Das, Sreejan Manna

“…Microneedles are categorized into several types such as solid microneedle, coated microneedle, hollow microneedle, dissolvable microneedle, hydrogel microneedle, swellable microneedle, and porous microneedle. …”
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Standardization for Data Generation and Collection in the Dairy Industry: Addressing Challenges and Charting a Path Forward by Michel Baldin, Jeffrey M. Bewley, Victor E. Cabrera, Kevin Jones, Connie Loehr, Gustavo Mazon, Juan D. Perez, Matthew Utt, Jeff Weyers

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Experimental Study on Noncoaxial Characteristics of Saturated Remolded Loess by Xuemeng Jiang, Haoshuang Niu, Wenpeng Huang, Xuwen Shang, Deng Wang

“…A series of undrained tests was performed on remolded loess specimens using a hollow cylinder apparatus to examine the coupling between principal stress magnitude and direction in these specimens. …”
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Influence of Deviatoric Stress on the Deformation and Damage Evolution of Surrounding Rock under Unloading Conditions by Gongyu Hou, Jinping Liang, Haoyong Jing, Jinxin Tan, Yongkang Zhang, Xi Yang, Xin Xie

“…In this study, unloading testing using a partially hollow thick-walled cylinder cement mortar specimen with dimensions of 280 mm (height) × 200 mm (outer diameter) × 60 mm (inner diameter) and a solid height of 60 mm at the bottom was performed to investigate the deformation response and damage failure evolution characteristics of the surrounding rock. …”
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RESEARCH ON THE FATIGUE LIFE CALCULATION METHOD OF HYDRO-TURBINE HEAD COVER CONNECTING BOLTS BASED ON PD-STFA by LIU Yu, JIN Jian, WANG YongFei, ZHAO JunJie, YU Bo

“…Long-term alternating loads on the connecting bolts of hydro-turbine head cover,which results in fatigue damage causing many serious accidents.Therefore,it is necessary to carry out in-depth study on the calculation method of fatigue life of head cover bolts in order to improve the accuracy of fatigue life calculation.In order to solve the above problems,a method for calculating the fatigue life of Turbine head cover bolts based on combination of power density and short-time Fourier analysis（PD-STFA） is put forward,with emphasis on the influence of coupling action of loading frequency and amplitude load on the fatigue life of head cover bolts.Firstly,the position and stress of dangerous section of connecting bolt are calculated by finite element method;secondly,the average stress of contact surface of bolt head is measured by strain-based hollow pressure sensor,and then the measured average stress of contact surface of bolt head is transformed into the stress of dangerous section according to generalized Hooke’s law;finally,based on linear damage accumulation theory,the fatigue life of the head cover bolts is calculated by PD-STFA method and the traditional rain flow counting method.The calculation results show that the fatigue life of the head cover bolts is 1.966× 10~5 h based on PD-STFA method and 4.113 ×10~5 h based on traditional rain flow counting method.According to the investigation of power plant users,the calculation results based on PD-STFA method are closer to the actual service life of bolts for about 30 years,and can predict the fatigue life of the turbine head cover connecting bolts more accurately,thus providing theoretical guarantee for the safe and stable operation of the hydro-turbine.…”
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Formas de relevo da bacia hidrográfica do Rio Ibicuí, Rio Grande do Sul, Brasil: Obtidas por classificação topográfica automatizada by Romario Trentin, Luís Eduardo de Souza Robaina

“…By visual interpretation in GIS environment allowed the definition of 12 landforms units to the Ibicuí Basin, so called: Ibicuí-Uruguay Unit formed by large areas with a flat element; Flood Plain Unit characterized by the flat element associated with tributaries of the Ibicuí river; Altitude Hills Unit, with broad slopes and altitudes above 200m; Volcanic ridge Unit forming relief dissected with valleys and ridges; Sedimentary Edge Unit defined by shoulders and secondary elevations associated with relief of flat elements; Cacequi Unit formed by undulating relief marked by wide slopes and areas with hollow forms and short valleys; Santa Maria Unit of smooth wavy relief and isolated elevations; High Course of Ibirapuitã Unit, constituting the areas in the headwaters of the upper course of the Ibirapuitã and Ibirapuitã Chico rivers; Serra do Caverá Unit composed of a relief of hills and morrotes; Taquarembó Unit characterized by slopes with narrow and elongated tops with substrate composed of granite rocks; Santa Maria Chico Unit forming slopes with broad bases with rebounds of metamorphic and granite rock outcrops; Alegrete Unit with flat forms associated to bumps between the middle and top of the slope that mark outcrops of blocks and slabs.. …”
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Line List for the A2Π−X2Σ+ and the B2Σ+−X2Σ+ Band Systems of CaF by Léo Lavy, Peter F Bernath, Adam Pastorek

“…CaF A ^2 Π− X ^2 Σ ^+ and B ^2 Σ ^+ − X ^2 Σ ^+ band systems were excited with a hollow cathode discharge. Using previous fluorescence spectroscopy measurements, highly accurate ground state constants, and reasonable extrapolation schemes, the strongest features of CaF in the visible spectrum can be accurately modeled for both band systems. …”
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Optimization of Residual Wall Thickness Uniformity in Short-Fiber-Reinforced Composites Water-Assisted Injection Molding Using Response Surface Methodology and Artificial Neural Ne... by Haiying Zhou, Hesheng Liu, Tangqing Kuang, Qingsong Jiang, Zhixin Chen, Weipei Li

“…This study aimed at improving the residual wall thickness uniformity (RWTU), which was closely related to the mechanical properties of plastic parts with a hollow cross-section, in short-fiber reinforced composites (SFRC) overflow water-assisted injection molding (OWAIM). …”
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Tailoring the shell structures in core-shell metal nanostructures for improved catalytic reduction of nitroaromatics by Manickam Sundarapandi, Alagarsamy Pandikumar, Perumal Rameshkumar, Ramasamy Ramaraj

“…Initially, recent contributions to the synthesis of diverse bimetallic nanostructures, including hollow, crown-jewel, alloy, and core-shell architectures are summarized. …”
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Lipomatous/Extensively Vacuolated Ependymoma with Signet-Ring Cell-Like Appearance: Analysis of a Case with Extensive Literature Review by Miguel Fdo. Salazar, Martha Lilia Tena-Suck, Alma Ortiz-Plata, Citlaltepetl Salinas-Lara, Daniel Rembao-Bojórquez

“…Intriguingly, it was also composed of cells with single or multiple hollow cytoplasmic vacuoles sometimes giving a signet-ring cell-like configuration. …”
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Experimental Study on Lateral Permeability Evolution of Sandstone under Seepage-Damage Coupling by Dongdong Pang, Feisheng Feng, Guanghui Jiang, Dongjing Xu, Xiaohan Wang

“…To analyze the internal pore evolution law of aquifer rock in a coal mining front under the coupling effect of stress and seepage and the influence on the water inrush performance of the working face, research on the working face was conducted to improve the RTR-1000 high-temperature and high-pressure rock triaxial mechanical testing system, using hollow cylindrical and complete sandstone samples and by considering the stress change law in the actual mining process as the reference loading path. …”
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Experimental Study on the Anisotropy and Non-coaxiality of Frozen Standard Sand under Different Principal Stress Directions by Dun Chen, Guoyu Li, Xiaodong Zhao, Wei Ma, Zhiwei Zhou, Yanhu Mu, Zejin Lai, Tuo Chen

“…At a temperature of -10°C, a series of hollow cylinder tests for frozen standard sand (FSS) was conducted under different directional angles of major principal stress and mean principal stresses in this study. …”
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Modeling and Analysis of the Effect of Dip-Spin Coating Process Parameters on Coating Thickness Using Factorial Design Method by Sorasutee Buapool, Nandh Thavarungkul, Nakorn Srisukhumbowornchai, Preecha Termsuksawad

“…Statistical modeling of the dip-spin coating process to describe colloidal PTFE dispersion coating on the external surface of a small diameter hollow tube was developed by using 24 factorial design with a center point to predict the coating thickness in a range of 4–10 μm. …”
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Antibacterial action of penicillin against Mycobacterium avium complex by D. Deshpande, G. Magombedze, S. Srivastava, T. Gumbo

“…METHODS: Benzylpenicillin lung concentration–time profiles of seven doses in three dosing schedules were administered for 28 days using the hollow fiber system model of intracellular MAC (HFS-MAC). …”
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Broadband HMSIW antenna using a demi hexagonal ring slot for X-band application by Dian Widi Astuti, Muslim Muslim, Umaisaroh Umaisaroh, Huda A Majid, Syah Alam

“…However, SIW slot antennas face challenges with narrow impedance bandwidth due to the thin substrate, unlike conventional bulky hollow waveguides. The half-mode substrate integrated waveguide (HMSIW) slot antenna, which is a 50% miniaturized version of the SIW slot antenna, also suffers from reduced fractional bandwidth, resulting from the miniaturization and the thin substrate. …”
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Effects of Incorporating Fine Aggregates and Polypropylene Microfibres on the Cracking Control of 3D Printed Cementitious Mixtures by Armando Vargas, Rafael Robayo-Salazar, Ruby Mejía de Gutiérrez

“…To evaluate the cracking susceptibility of the mixtures, both with and without reinforcement, hollow beams composed of seven layers were printed, and subsequently the elements were exposed to the outdoor natural environment and inspected for a period of 90 days. …”
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