The most important components of electrical vehicles are the battery and the related cooling system. These subsystems play a major role in determining the overall electric vehicle performances. In this study, a novel cooling system with fluid in the battery cell is proposed, by which the energy storage system can be optimized through control of the temperature of the batteries. A sensitivity analysis is conducted considering the maximum temperature, the heat rate, the coolant temperature, and the geometry of the cavities. The numerical simulations show that the parameters for the trapezoidal compartment have an impact on the thermal performance of battery. An optimal geometry is proposed accordingly. It is concluded that for high values of Reynolds number for which the flow becomes turbulent, a decrease in the battery temperature can be obtained thereby avoiding thermal stresses.

No abstract

Earthquake 2018 and than Covid-19 Pandemic as starting point to conduct research about condition of educations, healties and rate of poverty in Tanjung Districts, North Lombok, West Nusa Tenggara Province. Base on analysis data of centre of Statistic Bureau of North Lombok (BPS) and  population projection of Tanjung districts untill 2025, the condition are:  fasilities of kindergarten has not been enough yet. The distibution of that finfrastructure among the vilages is not equal. The elemnteray or primary school (Sekolah Dasar), junior high school ( Sekolah Menengah Pertama) are more than enough, Midle high school (sekolah Menengah Atas) are not enough yet. The aditional education fasilities in 2022 need to add, such as 20 units of new  kindergarten,  1 units of Midle high school. Health fasilities relatively has not been enough yet, compare to district Tanjung population as much 220.412 and the position distric Tanjung as capital of North Lombok regency  e.g community helath centre and sub community health centre (Puskesmas dan Puskesmas Pembantu), polyclinic and laboratory, hospital, private doctor services,  farmacy are not enough yet realtively to population. It should there 5 unit of Community health centre dan 82 sub cummunity helath centre, 10 private doctor services, 1 unit of laboratory, 3 unit of  hospital C or 1 B type. Base on qualitative data that rate of poverty in Tanjung district is relativly high. The lowest education level, skill, Lack of employment opurtunity,  and capital  are the prime faktor of poverty

Penelitian tracer study ini bermaksud untuk menganalisis tingkat relevansi antara program pendidikan yang diselenggarakan oleh alumni Program Studi Magister Ilmu Ekonomi (MIE) Fakultas Ekonomi dan Bisnis Universitas Mataram (FEB Unram) dengan kebutuhan lapangan. Penelitian ini diharapkan bisa memberikan berbagai informasi penting, antara lain kebutuhan riil yang diperlukan dunia kerja, kekurangan yang dimiliki lulusan, kelemahan kurikulum yang selama ini digunakan, dan harapan alumni terhadap Prodi MIE FEB Unram terkait dengan penyelenggaraan pendidikan ke depan. Penelitian ini menemukan bahwa alumni MIE FEB Unram tersebar di berbagai instansi baik negeri maupun swasta. Beberapa diantaranya juga menjalankan usaha sendiri. Bidang pekerjaan yang digeluti oleh para alumni MIE FEB Unram adalah dalam bidang  pendidikan, pemerintahan dan jasa. Kurikulum pada Prodi MIE FEB Unram sudah sesuai dengan kebutuhan di dunia kerja. Akan tetapi masih perlu ditingkatkan lagi dengan penambahan materi-materi yang bisa menunjang pekerjaan antara lain kemampuan menulis ilmiah, ketrampilan berbahasa asing dan kemampuan analisis perencanaan pembangunan.

West Nusa Tenggara Province (NTB) has a small economy with a concentration of output to meet needs within its region and has a small proportion of trade outside the NTB region. Leading sectors are needed for faster economic growth. This study aims to describe how the structure of trade and the leading sectors drive economic growth. This research uses the descriptive quantitative method by utilizing interregional input and output data. The results indicate that the output trade structure is mostly traded within the NTB area and the majority is used for final demand. The sector with the largest output value in NTB is still the agricultural sector. However, based on sectoral linkages, the Electricity and Gas Procurement sector has the greatest capacity to encourage the progress of its upstream and downstream sectors. This means that the sector has the potential as a leading sector with the highest economic multiplier and should this sector be encouraged and continued to be spurred to boost economic growth.