Perancangan Media Pembelajaran Board Game Edumaze Untuk Jenjang Pendidikan Sekolah Dasar

Pembelajaran secara daring selama pandemi Covid-19 menimbulkan beberapa permasalahan dalam motivasi belajar siswa. Selama pembelajaran daring siswa banyak menggunakan handphone atau gadget sebagai alat untuk belajar. Namun, siswa lebih cenderung menggunakan gadget-nya untuk bermain game ataupun mengakses media sosial daripada untuk belajar. Hal tersebut mengakibatkan berkurangnya semangat untuk belajar dan menurunnya frekuensi berinteraksi seorang anak dengan teman sebayanya secara langsung. Oleh karena itu, ketergantungan terhadap gadget ini perlu diminimalisir dan semangat untuk belajar perlu ditingkatkan. Dengan dimulainya Pembelajaran Tatap Muka (PTM) lagi di sekolah saat ini, kegiatan belajar-mengajar di kelas membutuhkan sebuah terobosan untuk membangkitkan kembali minat belajar siswa. Perancangan media pembelajaran berbentuk board game ini diharapkan dapat meningkatkan motivasi belajar dan membantu siswa untuk dapat bersosialisasi dengan teman-temannya secara langsung. Dalam studi ini, metode yang digunakan adalah research and development untuk melihat kebutuhan materi yang perlu disampaikan dan diaplikasikan ke dalam board game bernama Edumaze. Materi ajar yang diaplikasikan adalah untuk kelas 6 SD yang berasal dari buku bahan ajar tematik. Hasil yang didapatkan yaitu terciptanya sebuah board game yang mengadopsi mekanisme permainan berupa dice rolling, grid movement, dan variable phase order. Mekanisme tersebut dimodifikasi kembali menjadi beberapa mekanisme yang baru. Pada board game Edumaze terdapat komponen-komponen alat untuk bermain berupa papan maze, papan menu, kartu karakter, kartu bertanya, kartu ditanya, kartu buku, pion karakter, pion play dan koin dari Bank Edumaze.

Dynamic Phase Signal Control Method for Unstable Asymmetric Traffic Flow at Intersections

This paper addresses the limitations that the phases proposed in variable phase sequencing studies for stochastic traffic flow are all predetermined and that the variable phase sequencing is only suitable for low traffic volume environment. It presents a dynamic phase signal control method for unstable asymmetric traffic flow with two primary operational objectives: the realization of a dynamic phase scheme in each cycle and optimization of signal control parameters. First, an asymmetric state of traffic flow at signalized intersections is defined, rules governing the generation of the dynamic phase of each cycle based on asymmetric state are proposed, and the delay variations of intersections adopting dynamic phase schemes are modeled. Next, a signal control parameter adjustment algorithm for the dynamic phase is constructed to maximize the positive benefits of delay variation. Last, the operational performance of the proposed method is validated using data collected from an intersection in Harbin, China, by VISSIM simulation. Furthermore, it is found that a higher asymmetric coefficient leads to lower efficiency of a symmetrical release phase scheme at intersections, and the increase of average delay becomes significant when the asymmetric coefficient threshold is greater than 0.2.

Condition of phase angle for a new VDGA-based multiphase variable phase shift oscillator from 0o to 90o

A novel interesting type of variable phase angle voltage mode oscillator using modern building block has been presented in this paper. The new proposed oscillator configuration which uses four voltage differencing gain amplifier (VDGA) and two grounded capacitors can generate two sinusoidal signals that change out of phase by 0 to 90 degree. It has four floating and explicit voltage mode outputs where every two outputs have the same phase. The circuit is characterized by (i) the condition of phase angle of the oscillation (PO) (this concept is introduced for the first time in this paper) can be tuned electronically (ii) the gain of the floating outputs can be controlled independently (iii) it provides electronic control of condition of oscillation (CO) and independent control of frequency of oscillation (FO). The Total Harmonic Distortion (THD) of the output waveforms was obtained and the results were reasonability values (less than 4.5%). The non-ideal analysis and simulation results are investigated and confirmed the theoretical analysis based upon VDGAs implementable in 0.35μm CMOS technology. Simulation results include time response and frequency response outputs generated by using the PSPICE program.