Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
Penelitian terbaru dengan pendekatan psikologi geografi menunjukkan bahwa kepribadian memiliki kaitan dengan kondisi suhu lingkungan. Namun sayangnya sampai saat ini, terutama di Indonesia, belum ada penelitian yang secara khusus melihat kaitan kedua variabel ini. Penelitian ini bertujuan untuk mengetahui kaitan antara kondisi geografis, yakni suhu lingkungan, dan profil kepribadian individu. Data penelitian diambil melalui survei online pada penduduk Kota Bukittinggi dan Kota Padang berusia 18-60 tahun yang tinggal di Kota Bukittinggi atau Kota Padang sejak lahir hingga minimal usia 18 tahun (N=258). Variabel kepribadian diukur menggunakan Big Five Inventory (BFI). Hasil analisis komparatif menunjukkan bahwa terdapat perbedaan yang signifikan pada dimensi kepribadian conscientiousness antara masyarakat yang tinggal di wilayah dengan rata-rata suhu lingkungan yang nyaman (Mdn = 3.44) dengan masyarakat yang tinggal di wilayah dengan rata-rata suhu lingkungan yang kurang nyaman (Mdn = 3.55), U = 6885.50; z = -2.20; p < 0.05. Hal ini berarti bahwa individu yang tinggal di wilayah dengan rata-rata suhu lingkungan yang kurang nyaman cenderung memiliki kontrol yang lebih kuat dalam memfasilitasi pengarahan perilaku untuk mencapai tugas dan tujuan mereka dibandingkan dengan individu yang tinggal di wilayah dengan rata-rata suhu lingkungan yang lebih nyaman. Hasil penelitian ini mengindikasikan bahwa suhu lingkungan memiliki kaitan dengan perbedaan profil kepribadian. ......Recent research with a psychological approach to geography shows that personality has a relationship with ambient temperature conditions. Unfortunately, there has been no research that specifically looks at the relationship between these two variables until now, especially in Indonesia. This study aims to determine the relationship between geographical conditions, specifically ambient temperature, and personality profiles. This research data was taken through an online survey on residents of the Bukittinggi City and the Padang City aged 18-60 years who lived in the City of Bukittinggi or the City of Padang from birth to at least 18 years of age (N=258). Personality variables were measured using the Big Five Inventory (BFI). The comparative analysis results show significant differences in the conscientiousness dimension between people living in areas with a clement ambient temperature (Mdn = 3.44) and people living in areas with an average ambient temperature that is less clement (Mdn = 3.55), U = 6885.50; z = -2.20; p < 0.05. This means that people living in areas with less clement ambient temperatures tend to have stronger control over facilitating behavioral direction to achieve their tasks and goals compared to people living in areas with more clement ambient temperatures. This study result indicates that ambient temperature is related to differences in personality profiles.

Abstrak :
[ABSTRAKbr Menurut beberapa studi penelitian yang dilakukan, kejadian hiperurisemia sering terjadi pada pekerja pabrik, terkhusus pekerja pabrik yang bekerja di lingkungan kerja panas. Penelitian ini bertujuan untuk mengetahui hubungan antara usia, status gizi (IMT), asupan gizi (purin dan protein), merokok, konsumsi air putih, konsumsi alkohol, konsumsi kopi, konsumsi soft drinks, dan suhu lingkungan kerja dengan kejadian hiperurisemia pada pekerja pabrik PT. X Cikarang tahun 2015. Penelitian ini menggunakan desain studi cross sectional dengan metode sampel acak sederhana (simple random sampling). Sampel yang diteliti adalah pekerja pabrik PT. X Cikarang dengan total 152 sampel. Data dikumpulkan dengan cara pengumpulan data rekam medis dan pencatatan suhu lingkungan kerja pabrik, serta pengisian kuesioner mandiri dan wawancara FFQ semikuantitatif. Hasil uji chi square menunjukkan terdapat hubungan yang signifikan antara IMT, asupan protein hewani dan konsumsi air putih dengan kejadian hiperurisemia (p-value< 0,05). Dapat disimpulkan bahwa terdapat 23% pekerja pabrik mengalami hiperurisemia.;According to several researches, hyperuricemia frequently occur in factory workers, especially those working in high temperature. This research has purpose to know the association between age, Body Mass Index (BMI), nutrition intake (purine and protein), smoking, water intake, alcohol intake, coffe intake, softdrinks intake and working enviroment temperature with hyperuricemia on workers at PT. X Cikarang 2015. This research is using study methode cross sectional with simple random sampling. The samples are research are the workers at PT. X Cikarang with 152 samples. The data is collected with collecting medical record data and factory working enviromental temperature, also doing self quesioner and semiquantitative FFQ interviewing. Chi square test result is showing there are significant relation between BMI, animal protein intake and water intake with hyperuricemia (p value <0,05). It can be conclude that 23% factory workers has hyperuricemia.;According to several researches, hyperuricemia frequently occur in factory workers, especially those working in high temperature. This research has purpose to know the association between age, Body Mass Index (BMI), nutrition intake (purine and protein), smoking, water intake, alcohol intake, coffe intake, softdrinks intake and working enviroment temperature with hyperuricemia on workers at PT. X Cikarang 2015. This research is using study methode cross sectional with simple random sampling. The samples are research are the workers at PT. X Cikarang with 152 samples. The data is collected with collecting medical record data and factory working enviromental temperature, also doing self quesioner and semiquantitative FFQ interviewing. Chi square test result is showing there are significant relation between BMI, animal protein intake and water intake with hyperuricemia (p value <0,05). It can be conclude that 23% factory workers has hyperuricemia., According to several researches, hyperuricemia frequently occur in factory workers, especially those working in high temperature. This research has purpose to know the association between age, Body Mass Index (BMI), nutrition intake (purine and protein), smoking, water intake, alcohol intake, coffe intake, softdrinks intake and working enviroment temperature with hyperuricemia on workers at PT. X Cikarang 2015. This research is using study methode cross sectional with simple random sampling. The samples are research are the workers at PT. X Cikarang with 152 samples. The data is collected with collecting medical record data and factory working enviromental temperature, also doing self quesioner and semiquantitative FFQ interviewing. Chi square test result is showing there are significant relation between BMI, animal protein intake and water intake with hyperuricemia (p value <0,05). It can be conclude that 23% factory workers has hyperuricemia.]

Abstrak :
Baterai adalah media untuk menyimpan energi listrik. Baterai mengubah energi kimia yang terkandung dalam bahan aktif menjadi energi listrik yang disebabkan oleh reaksi reduksi oksidasi elektrokimia. Baterai dapat diterapkan untuk berbagai jenis kebutuhan manusia, seperti UPS (Uninterruptible Power Supply), sel surya, dll. Salah satu jenis baterai yang banyak digunakan saat ini adalah baterai timbal-asam. Agar baterai bekerja optimal dan memiliki usia yang sesuai, kondisi baterai harus dipertimbangkan dengan benar. Salah satu faktor yang harus diperhatikan adalah suhu sekitar dan arus keluaran. Suhu lingkungan dapat memengaruhi parameter baterai seperti tegangan, kapasitas, dan masa pakai baterai. Arus pelepasan baterai dipengaruhi oleh beban yang terkait dengan baterai, oleh karena itu beban yang digunakan perlu disesuaikan dengan kapasitas baterai yang akan digunakan sehingga arus pelepasan yang dihasilkan oleh baterai sesuai dengan peringkat penggunaannya karena aliran pelepasan yang dihasilkan oleh baterai dapat mempengaruhi kapasitas baterai. Oleh karena itu, menguji pengaruh suhu lingkungan dan debit saat ini pada baterai timbal-asam dengan metode deep-discharge diperlukan untuk melihat karakteristik debit baterai pada suhu ambien dan debit yang berbeda. Dari pengujian yang telah dilakukan, rasio kapasitas berbanding lurus dengan suhu sekitar dan berbanding terbalik dengan arus pelepasan baterai. Misalnya, pada pengujian 30o Celcius, kapasitas baterai masing-masing 2 Ohms, 3 Ohms dan 4 Ohms masing-masing adalah 57.783 Watt-jam, 58.74 Watt-jam dan 60.467 Watt-jam. Contoh lain adalah pada beban 2 Ohm, kapasitas baterai pada 30o Celcius, 40o Celcius dan 50o Celcius masing-masing adalah 57.783 Watt-jam, 58.175 Watt-jam dan 58.213 Watt-jam. ...... The battery is a medium for storing electrical energy. Batteries convert chemical energy contained in active ingredients into electrical energy caused by electrochemical oxidation reduction reactions. Batteries can be applied to various types of human needs, such as UPS (Uninterruptible Power Supply), solar cells, etc. One type of battery that is widely used today is lead-acid batteries. For the battery to work optimally and have an appropriate age, the condition of the battery must be considered properly. One factor to consider is ambient temperature and output current. Ambient temperature can affect battery parameters such as voltage, capacity, and battery life. The battery discharge current is affected by the load associated with the battery, therefore the load used needs to be adjusted according to the capacity of the battery to be used so that the discharge current generated by the battery matches its usage rating because the discharge flow generated by the battery can affect the capacity of the battery. Therefore, testing the effect of ambient temperature and current discharge on lead-acid batteries with the deep-discharge method is needed to see the characteristics of battery discharge at different ambient and discharge temperatures. From the tests that have been done, the capacity ratio is directly proportional to the ambient temperature and inversely proportional to the battery discharge current. For example, in the 30o Celsius test, the battery capacity of 2 Ohms, 3 Ohms and 4 Ohms respectively was 57,783 Watt-hours, 58.74 Watt-hours and 60,467 Watt-hours, respectively. Another example is the load of 2 Ohms, the battery capacity at 30o Celsius, 40o Celsius and 50o Celsius are 57,783 Watt-hours, 58,175 Watt-hours and 58,213 Watt-hours, respectively.

Abstrak :
Karena masalah pemanasan global, upaya sedang dilakukan untuk membuat dan mengembangkan pembangkit energi baru dan terbarukan. Namun, energi energi terbarukan memiliki permasalahan karena ketergantungan pada alam yang tidak teratur. Oleh karena itu, pembuatan genset lebih mahal, karena perlu manipulasi keluaran listrik agar stabil dan dapat disambungkan ke jaringan. Salah satu cara untuk menstabilkan keluaran listrik adalah dengan menggunakan baterai. Salah satu jenis baterai yang digunakan adalah timbal-asam baterai. Baterai ini merupakan jenis baterai yang sering digunakan karena harga pembuatannya yang murah. Jika dibandingkan dengan baterai lithium-ion, baterai timbal-asam ternyata lebih sensitif terhadap suhu dan faktor lainnya. Ditemukan bahwa baterai timbal-asam lebih mahal untuk dirawat dan memiliki umur yang lebih pendek. Penelitian ini diharapkan dapat membantu bisnis memecahkan masalah suhu dingin di negara-negara yang mengalami musim dingin. Dalam penelitian ini ditemukan bahwa baterai 9 Ah memiliki kapasitas yang 27% lebih rendah pada suhu lingkungan -100 C dibandingkan dengan baterai pada suhu lingkungan 500 C. Ditemukan juga bahwa baterai 5 Ah memiliki kapasitas 271,2% lebih sedikit saat memiliki arus discharge 6 Ampere dibandingkan saat baterai memiliki arus discharge 1,2 Amper. ......Due to the problem of global warming, efforts are being made to make and developing new and renewable energy plants. However, energy renewable energy has problems due to dependence on nature which does not regular. Therefore, the manufacture of the generator is more expensive, because the need for manipulation of the electrical output to be stable and can be connected to the grid. One way to stabilize the electrical output is to use battery. One type of battery used is lead-acid battery. This battery is the type of battery that is often used because it is cheap manufacturing price. When compared to lithium-ion batteries, batteries lead-acid was found to be more sensitive to temperature and other factors. It was found that lead-acid batteries are more expensive to maintain and have shorter lifespan. This research is expected to help businesses solve the problem of cold temperatures in countries that experience monsoons cold. In this study it was found that the 9 Ah battery has a capacity of which is 27% lower when at -100 C ambient temperature compared to with when the battery is in an ambient temperature of 500 C. It was also found that 5 Ah battery has 271.2% less capacity when it has current discharge 6 Ampere compared to when the battery has a discharge current 1.2 Ampere