Ball Point Game: Playing or Learning Agile Project Management? by Maria Lydia Fioravanti, Gustavo M. N. Avellar, Bruna Oliveira Romeiro, Bruna Goncalves Rezende, Ellen Francine Barbosa, Ana M. Moreno

“…This paper presents an empirical evaluation of the Ball Point Game (BPG), a non-digital serious game designed to teach Agile project management principles. …”
Get full text

RESEARCH ON FLASH TEMPERATURE OF CONSTANTLY NO CLEARANCE PRECISION STEEL BALL EQUAL-SPEED TRANSMISSION by XIA JingQi, AN ZiJun, JIANG Wei

“…By the use of MATLAB programming, the change curves of maximum contact stress of engagement pairs in one motion cycle are drawn, the rated loads with different design parameters are calculated, and the instantaneous contact temperature-rise of engagement pairs in one motion cycle are drawn. …”
Get full text

Mini volleyball games using plastic balls improve passing learning outcomes for grade IV elementary school by M. Zainudin, Destriani Destriani, Syafaruddin Syafaruddin

“…This research aims to improve the learning outcomes of passing under volleyball using plastic balls for class VI students at 14 North Indralaya State Elementary School. …”
Get full text

Characteristics of the Ti1.27Fe + 11 wt.% Ni Composite Obtained by Arc Melting and Ball Milling by J. Bonifacio-Martínez, F. Ureña-Núñez, J. L. Iturbe-García

“….% Ni composite synthesized by arc melting and ball milling and its possible use in hydrogen storage were studied. …”
Get full text

A potential eco-friendly degradation of methyl orange by water-ball (sodium polyacrylate) stabilized zero valent iron nanoparticles by Saud Bawazeer

“…This study presents the synthesis and application of water-ball (sodium polyacrylate) stabilized zero-valent iron nanoparticles (wb@Fe0) for the eco-friendly degradation of Methyl Orange (MO). …”
Get full text

Creep of Sn-0.3Ag-0.7Cu solder in electronic packaging: Experiment and simulation by Yuezong Zheng, Junchen Liu, Hongchao Ji, Xiaomin Huang, Wenchao Xiao, Abdullah Aziz Saad

“…In contemporary society, the growing reliance on electronic devices has necessitated the phasing out of traditional Sn–Pb solder due to its health hazards, prompting a transition to environmentally friendly, lead-free alternatives.This study aims to address the challenges of poor interfacial reliability and high cost associated with eutectic Sn–Ag–Cu solders by investigating the creep properties and service life of a low-silver solder alloy, Sn-0.3Ag-0.7Cu, as a filler material.The creep behavior of Sn-0.3Ag-0.7Cu was analyzed through creep testing, and fracture modes were identified via microstructural and fracture surface analysis.The Anand viscoplastic model was employed to simulate and calibrate the creep behavior, with its accuracy validated via thermal cycling experiments.Furthermore, the creep behavior of Ball Grid Array (BGA) solder joints was simulated using Abaqus software to examine the impact of creep on joint longevity and the influence of temperature on performance.…”
Get full text

Tribological characteristics of Al–Mg–Si–Cu alloy against die steel under elevated temperatures in simulated hot extrusion environment by Zhiwen Liu, Ming Zhang, Ping Yan, Xiao Liu, Luoxing Li

“…Friction is a considerable boundary condition in aluminum alloy hot extrusion. In this study, ball-on-disc friction tests at temperatures of 25–500 °C were performed to equivalently simulate the interface tribological behaviors between Al–Mg–Si–Cu alloy and die steel in hot extrusion. …”
Get full text

Extrapolation-Based Scale Effect Model for Granular Heap Modulus by Zhigang Ma, Shuaifeng Wu, Ran Wei

Get full text

Parametric Design and System Development of Different Types of Rollers Globoidal Cam Deceleration Mechanism by Chen Ruyun, Gong Qingshan, Cao Zhanlong, Sun Daocheng, Tan Hao

“…According to the theory of space geometry and the principle of conjugate surface, the working profile equations of five typical types of rollers, including cylindrical roller, conical roller, ball-cone roller, drum roller and ball roller, and globoidal cam are deduced. …”
Get full text

Project Based Learning Model: Can It Improve Dribbling Skills In Soccer Games? by Riyan Hardinata, Ghana Firsta Yosika, Youssouf Haïdara, Rahmat Putra Perdana, Uray Gustian, Didi Suryadi, Makan Sacko, Muhamad Zainal Abidin

“…Based on the results in cycle II, it showed that 89.7% of students completed, and there was a difference in the increase in cycle I and cycle II, namely 64.1%. …”
Get full text

Measuring the Average Peak Timing of Kinematic Variables in Youth and Adolescent Baseball Pitchers by Mark Boland, Daniel Zambanini, Ivan Mulligan, Sean Donegan

“…These values were recorded as percentages of the pitching cycle, defined from foot contact (0%) to ball release (100%). …”
Get full text

A New Mathematical Model for Food Thermal Process Prediction by Dario Friso

“…A mathematical model was developed to correlate the four heat penetration parameters of 57 Stumbo’s tables (18,513 datasets) in canned food: g (the difference between the retort and the coldest point temperatures in the canned food at the end of the heating process), fh/U (the ratio of the heating rate index to the sterilizing value), z (the temperature change required for the thermal destruction curve to traverse one log cycle), and Jcc, (the cooling lag factor). The quantities g, z, and Jcc, are input variables for predicting fh/U, while z, Jcc and fh/U are input variables for predicting the value of g, which is necessary to calculate the heating process time B, at constant retort temperature, using Ball’s formula. …”
Get full text

Comparison of Mechanical Properties of Aged All-Ceramic Materials by Ali Riza Tuncdemir, Tugba Temizci

“…All samples were aged with a thermal cycle of 10000 cycles. The biaxial flexural strength of the disc specimens was determined using the three-ball piston test and a universal testing machine. …”
Get full text

Scalable recycling and characterization of end-of-life solid oxide cell ceramic component materials by Gudaysew Tsegaye Yenesew, Clément Nicollet, Eric Quarez, Annie Le Gal La Salle, Olivier Joubert

“…By recycling solid oxide cells (SOCs) end-life materials, the environmental impact can be reduced, and the materials' closed-loop life cycle can help preserve natural resources and create a sustainable and circular system. …”
Get full text

AgIn2 thickness on void rate, microstructure, IMC growth, thermal and mechanical properties of fluxless In@AgIn2 joint by Jing Wen, Guoliao Sun, Jinyang Su, Yi Fan, Linzheng Fu, Zhuo Chen, Wenhui Zhu

“…Joints prepared with In or In@xAgIn2 underwent indium reflow and three solder ball reflow cycles to simulate the reflow processes typical of BGA packages. …”
Get full text

Preparation of magnetic porous graphene for the adsorption of typical sulfonamides by TONG Fanke, GUAN Tong, ZHOU Shuangxi, WANG Wei

“…Additionally,GO-TF/Fe3O4 showed good reuse performance for SD within 5 cycles.…”
Get full text

Structure and Electrochemical Properties of a Mechanochemically Processed Silicon and Oxide-Based Nanoscale Composite as an Active Material for Lithium-Ion Batteries by Norihiro Shimoi, Kazuyuki Tohji

“…The composite was produced by grinding using a planetary ball mill machine, which allowed for homogenous dispersion of nanoscale Cu3Si as Si–Cu alloy grains and nanoscale Si grains in each poly-Si particle produced. …”
Get full text

Patterns of physical activity and sedentary behavior associated with overweight in brazilian adolescents by Alexandre Romero, Camila Borges, Betzabeth Villar

“…Six PPASB were identified:  1) composed by volleyball and dance; 2) composed by soccer, video-game and computer; 3) composed by television and computer; 4) composed by dodge-ball and cycling; 5) composed by walking activity and 6) composed by gymnastics. …”
Get full text

Chemical looping synthesis of amines from N2 via iron nitride as a mediator by Haoyue Li, Tie Wang, Shifu Wang, Xuning Li, Yanqiang Huang, Ning Yan

“…This looping process proves stable across four cycles.…”
Get full text

The effect of extreme loads on changes in accuracy of the throw and functional indicators of heart rate in handball players by Nikiforova, Olga N., Markin, Edward V.

“…During the experiment, the effect of such extreme loads on the accuracy of hits and changes in heart rate during the annual cycle was studied. Effectiveness of the technique has been proven, which contributed to improving the accuracy of shots at the goal for 91 balls, i.e. contributed to an improvement in sports performance by 15% within one year cycle.…”
Get full text