Judul: Study on solar-assisted dryer with rotating rack for cocoa beans
Abstrak: This study discusses the engineering aspect of solar-assisted dryaing for cocoa beans using GHE type dryer with rotating rack. This dryer has a capacity of 60.5 kg/m3. Solar irradiation and charsoal combustion were esed as the thermal energy source. The main objective of this study was to develop an algorithm in designing of the scaled up solar- assisted drying for cocoa beans.
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Judul: The effects of vibration and heat energy on cabinet type ghe solar dryer
Abstrak: Increasing heat and vapor transfer between air and product to be dried is an important issue in drying of agricultural products. Generally, manual mixing is used in order to increase the contact area between air and product to be dried. However in most types of dryer including GHE solar dryer this method will result in significant heat loss and inconvenient operation. In order to overcome the problem, a GHE solar dryer prototype equipped with vibrating method on drying cabinet was designed in this study. The objective of this study is to perform analysis and simulation about vibration and heat transfer process in cashew nut drying by using cabinet type GHE solar dryer. The designed prototype had dimensions namely length, width, and height respectively of 1 m, and drying capacity of 30 kg of cashew nuts. The heat source was solar energy and coal fuels. The vibration components were placed just below the drying rack serves to smooth the flow of hot air into the cashews which was put on the drying trays. The vibration component consist of motor, shaft and unbalance mass mounted to the shaft. Based on the experimental result, the effective motion of the samples being dried occured at rotational speed near its natural frequency for total mass of 20 kg as well as of 40 kg. The final moisture content of vibrated samples was lower (i.e. 3.5%) than the samples without vibration (i.e. 4.2%). The results of testing of cabinet type GHE solar dryer is obtained that the utilization of solar energy just as energy sources drying will result dryer air temperature below 60 ° C. Therefore, additional heat energy required from coal-burning fuels that can raise the temperature of air in the drying chamber. Increased air temperature in the drying chamber requires heat energy and heat exchanger out of qAPK = 23.3 kJ / s, and the results obtained through experiments showed that the average air temperature in the drying chamber can be reached, Trg = 59.6 °C. This heat exchanger has a length of 40 cm, width 60 cm, 30 cm high and made of aluminum material with a thickness of each plate of 1 mm. Furnace fuel placed under the heat exchanger and is equipped with manual equipment that can raise and lower positions of fuel so that the temperature varies in the drying chamber during the experiment can be minimized.
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Judul: Prevalensi Infeksi Feline Panleukopenia di Shakalaka Vet Care and Surgery, Putatan, Sabah, Malaysia
Abstrak: Feline panleukopenia virus (FPV) is a single stranded DNA virus belonging to the family Parvoviridae and presents as the causative agent of felinepanleukopenia (FPL). The virus is shed in the faeces, urine and nasal secretions of infected cats and can persist in the environment for up to a year. The virus then transmitted via fomite or direct between infected cats to other cats. The issue of feline panleukopenia infections is rampant among cat population in Sabah, Malaysia and this fatal disease has led to the deaths of many cats. The purpose of the study is to measure the prevalence of feline panleukopenia infections in cats at Shakalaka Vet Care and Surgery, Sabah, Malaysia in hopes to may promote the community to take preventive measures to improve welfare of cats. The data obtained are secondary data collected from the clinical records of Shakalaka Vet Care and Surgery, Sabah, Malaysia for the months of January to June of 2021. The collected data were analyzed descriptively and to determine the relationship between the incidence of feline panleukopenia with age, sex, vaccination status and neuter status were statistically analyzed using the Chi square test. There was a total of 1570 cats that were brought in to Shakalaka Vet Care and Surgery from the months of January to June 2021. Of the total number of cats, 91 of the cats were diagnosed with feline panleukopenia making the overall prevalence 5.8%. It was also observed that cats aged 1-6 months that were unvaccinated and not neutered were comprised many of the cases. The age, sex, vaccination status and neuter status did not correlate to the occurrence of feline panleukopenia infection., Feline panleukopenia virus (FPV) adalah virus DNA beruntai tunggal dari famili virus Parvoviridae dan merupakan agen penyebab feline panleukopenia (FPL). Virus ini dieksresikan di feses, urin, dan eksreta hidung kucing yang terinfeksi dan mampu bertahan di lingkungan sehingga setahun. Virus ini kemudian ditularkan melalui kontak langsung antara kucing terinfeksi dengan kucing sehat. Isu infeksi panleukopenia kucing merajalela di antara populasi kucing di Sabah, Malaysia dan penyakit fatal ini telah menyebabkan kematian banyak kucing. Tujuan dari penelitian ini adalah untuk mengukur prevalensi infeksi feline panleukopenia pada kucing di Shakalaka Vet Care and Surgery, Sabah, Malaysia dengan harapan dapat mendorong masyarakat untuk melakukan tindakan preventif dan meningkatkan kesejahteraan kucing. Data yang terkumpul dianalisis secaradeskriptif, untuk menentukan hubungan antara kejadian feline panleukopenia dengan umur, jenis kelamin, status vaksinasi dan status sterilisasi dianalisis secara statistik menggunakan uji Chi Square. Data yang diperoleh adalah data sekunder yang dikumpulkan dari catatan klinis Shakalaka Vet Care and Surgery, Sabah, Malaysia selama bulan Januari hingga Juni 2021. Total ada 1570 kucing yang dibawa ke Shakalaka Vet Care and Surgery dari bulan Januari hingga Juni 2021. Sejumlah 91 kucing didiagnosis menderita panleukopenia kucing sehingga prevalensi keseluruhan 5,8%, berdasarkan data yang diperoleh bahwa sebagian kasus terjadi pada kucing berusia 1-6 bulan yang tidak divaksinasi dan tidak sterilisasi. Berdasarkan hasil uji Chi square, kejadian feline panleukopenia tidak ada korelasi dengan umur, jenis kelamin, status vaksinasi dan status sterilisasi.
Keyword: Cats, feline panleukopenia, prevalence, Feline panleukopenia, kucing, prevalensi