Evaluation of a manufacturing task support system using the Task Technology Fit Model

This paper presents an exploratory study of a Task Support System (TSS) supporting manufacturing task operations. The study investigated the degree to which a TSS, in use in a company, actually supports the task of the shop floor personnel. The approach has been to adopt the Task-Technology Fit (TTF) instrument to measure the degree of fitness between the TSS and the associated task. The analysis gives an indication of the state of the TSS and the potential improvements that can be made. The study also shows that the instrument can be used as a foundation for the development of a hypermedia TSS and a benchmarking tool for a TSS

The performance of varying PTFE coated fabric cloth on electricity production using synthetic wastewater with aid of activated carbon air-cathode

M.Tech. (Chemical Engineering)Abstract: Microbial fuel cell is the energy harvesting technology being studied; this technology concerns various substrates, microbes and wastewater into electrical energy by the catalytic reaction of micro-organisms. The thesis of the project research seeks to establish a comparison in the performance of biochemical properties for microbial fuel cells using synthetic wastewater and activated carbon. The cathode electrode used was a stainless steel pressed with activated carbon and was sectioned to a surface area of 36cm2 same with the proton exchange membrane and the carbon cloths were also sectioned at 36cm2. The experimental set-up consisted of a double chamber membrane which consisted of the anode and air-cathode chamber. The anode and air-cathode chamber were immersed in the open water bath regulated at a temperature of 35oC. On the start-up, the anode chamber was filled with 280ml of synthetic wastewater which was mixed and prepared in the lab to reach the ideal COD levels which meet the raw domestic wastewater COD levels and the air-cathode was filled with 8L of tap water. The anode chamber after every experiment was changed and fitted with a new and different carbon cloth coating, whereby the cathode chamber had to be changed with an addition of the pulverized activated carbon. The 50% PTFE coated carbon cloth is more efficient in generating power than the other which were compared to in the experiment; however the performance of individual carbon cloths varies significantly with the type or percentage of coating added and this directly affects the overall performance of the MFC, and this was highly aided with the addition of the activated carbon. An air-cathode with activated carbon with different particle sizes which was embedded on a stainless steel mesh. Microbial fuel cell (MFC) containing synthetic wastewater was constructed and compared to different types of carbon coated polytetrafluroethylene (PTFEs). The synthetic wastewater contained in MFCs was investigated and together with the aid of activated carbon which was pulverized to different sizes for oxygen removal. The synthetic wastewater MFC had a power output of 86.80mW/m2, compared to 17.47mW/m2 for the domestic wastewater. The limiting current density is 0.0347mA/m2 for the activated carbon in synthetic wastewater compared to 0.0046mA/m2 for domestic wastewater without an..

PENGARUH BEKAM SECARA TIME SERIES TERHADAP TPENURUNAN TEKANAN DARAH PASIEN HIPERTENSI

ABSTRAKHipertensi adalah suatu penyakit kronis dimana tekanan darah, baik sistolik maupun diastolik, meningkat di atas tekanan darah normal. Berdasarkan hasil Riset Kesehatan Dasar (Riskesdas) tahun 2007 hipertensi merupakan penyebab kematian ketiga dengan prevalensi sebesar 25,8 % pada tahun 2013. Pengobatan hipertensi dapat dilakukan melalui pengobatan alternatif, yaitu bekam. Bekam merupakan metode pengobatan yang dianjurkan Nabi Muhammad SAW dengan cara mengeluarkan toksin atau unsur-unsur yang tidak dibutuhkan lagi oleh tubuh. Penelitian ini dilakukan untuk mengetahui efek jangka panjang bekam terhadap hipertensi. Metode yang digunakan dalam penelitian adalah time series dengan rancangan one group pretest-posttest. Penelitian dilakukan di Klinik Al-Wafa Banda Aceh dengan sampel berjumlah 30 responden yang didapatkan menggunakan metode quota sampling selama bulan Juni - Juli 2014. Data hasil penelitian diuji secara bertahap selama tiga waktu didapatkan perbedaan yang signifikan pada penurunan tekanan darah sebelum dan setelah dilakukan bekam secara time series (p value sistole Greenhouse-Geisser = 0,000 dan p value diastole Greenhouse-Geisser = 0,000 , ? = 5 %,

Polarization memory in single Quantum Dots

We measured the polarization memory of excitonic and biexcitonic optical transitions from single quantum dots at either positive, negative or neutral charge states. Positive, negative and no circular or linear polarization memory was observed for various spectral lines, under the same quasi-resonant excitation below the wetting layer band-gap. We developed a model which explains both qualitatively and quantitatively the experimentally measured polarization spectrum for all these optical transitions. We consider quite generally the loss of spin orientation of the photogenerated electron-hole pair during their relaxation towards the many-carrier ground states. Our analysis unambiguously demonstrates that while electrons maintain their initial spin polarization to a large degree, holes completely dephase.Comment: 6 pages, 4 figure

Makna Religiusitas bagi Kaum Waria

Understanding in Islam generally says that Waria's behavior and orientation are cruel and condemned, but on the other hand they need the existence of religion in their lives, this fact makes religious transgenders experience psychological doubts and psychological conflicts between their choice to become transsexuals with internalization of religious teachings. that they get in religion. This research will discuss how the meaning of religiosity for transvestites? This type of research is descriptive qualitative using a phenomenological approach, from 6 (six) transvestites, researchers took 4 (four) transvestites, namely Yt, Mn, Li, and Nu. The taking of this object uses a purposive sample and also uses recommendations from key informants in the field. The results of this study indicate that Transvestites still believe in religion and all its teachings. For Waria that their current existence is not their will but the will of the Creator. This is proven by their carrying out all religious rituals. It's just that they still can not be a normal human being in general who likes other types. Although religion forbids the existence of waria, it is clear that they continue to respect religion and try not to pollute religion

Harga Pembelian Pemerintah (Hpp) Gabah-Beras Tahun 2010: Efektivitas Dan Implikasinya Terhadap Kualitas Dan Pengadaan Oleh Dolog

Terkait dengan stabilisasi harga dan peningkatan kualitas gabah-beras, pemerintah menetapkan harga pembelian pemerintah (HPP) dan penggunaan tabel rafaksi sebagai acuan dalam transaksi gabah-beras. Kajian ini bertujuan untuk melihat efektivitas HPP, dan bagaimana faktor produksi dan kualitas gabah-beras mempengaruhi efektivitas kebijakan HPP. Kebijakan HPP GKP efektif dalam menjaga stabilitas harga GKP ditingkat petani. Tingkat harga pada transaksi jual beli gabah beras dipengaruhi kuantitas dan kualitas gabah beras. Kuantitas berhubungan dengan produksi antar musim. Namun, dalam menentukan harga transaksi, tidak ada pedoman baku yang digunakan untuk menentukan kualitas. Tabel Rafaksi tidak digunakan oleh petani dan pedagang. Petani dan pedagang telah mempunyai persepsi masing-masing tentang penentuan kualitas gabah-beras. Oleh sebab itu, sosialisasi tabel rafaksi pada petani sangat perlu digiatkan