Judul: Analisis Pemborosan Proses Produksi Roti ACS dengan Metode Value Stream Mapping di PT X.
Abstrak: Meningkatnya permintaan roti ACS di PT X membuat kapasitas produksi PT X harus ditingkatkan agar dapat memenuhi kenaikan permintaan tersebut. Adanya kenaikan permintaan membuat pekerja harus melakukan lembur untuk memenuhi permintaan. Seringnya pekerja melakukan lembur dikarenakan adanya kegiatan tidak bernilai tambah dan pemborosan yang terjadi di setiap stasiun kerja. Eliminasi pemborosan yang ada di lantai produksi adalah cara agar dapat memenuhi kenaikan permintaan tersebut. Tujuan penelitian ini adalah menganalisis proses dan pemborosan dengan VSM, mengidentifikasi pemborosan pada proses produksi roti ACS, dan memberi rekomendasi sebagai upaya perbaikan. Value stream mapping (VSM) merupakan salah satu lean tools yang memetakan aliran material dan informasi lewat current state map untuk mengidentifikasi pemborosan. Pemborosan yang diidentifikasi pada produksi roti ACS adalah inventori, menunggu, produk cacat, gerakan, dan proses yang berlebihan. Total waktu siklus adalah 12139.99 detik dari total lead time 16084.40 detik. Usulan perbaikan dilakukan dengan menggunakan metode 5W1H dan waktu baku. Perhitungan waktu baku mempertimbangkan penyesuaian menggunakan metode objektif dan kelonggaran. Alternatif solusi ini dapat mengurangi total lead time sebesar 28.77% menjadi 11456.48 detik dan waktu siklus 11338.86 detik.
Keyword: value stream mapping, lean manufacturing, eliminasi pemborosan, waktu baku

Judul: Perbaikan Aliran Proses Produksi dari Aspek Tata Cara Kerja dan Tata Letak Pabrik dengan Metode Value Stream Mapping (Studi Kasus PT. X)
Abstrak: Effectivity and efficiency of production flow can be achieved by eliminating identified waste in the flow process. Value stream mapping is a fundamental tool in lean manufacturing system to identify and eliminate waste. The objective of this research is to analyze the production flow in PT. X from the work procedure and factory layout aspect, so that the effectivity and efficiency of the flow process can be improved continuously. This research consists of several important steps; choosing a product to be observed, making the current state VSM for the chosen product, analyzing the current state VSM, and then making the future state VSM. The depiction of current state VSM shows that the production lead time for the observed product is 17 hours 53 minutes and 52 seconds, with the percentage of value added time counted 56,87%. The result of improvement analysis in this research shows a reduction of production lead time for 13,16%, and also an improvement of value added time percentage to 60,26%.
Keyword: Bogor Agricultural University (IPB), waste elimination, value stream mapping, lean, lead time, continuous improvement

Judul: Distribution and Diversity of Ectoparasite Mites on Geckos in Indonesia
Abstrak: Data on the diversity and dispersal of parasitic mites on house geckos in Indonesia are very scarce. In this work, the distribution and diversity of mites living on three species of house geckos, namely Cosymbotus platyurus, Hemidactylus frenatus, and H. garnotii collected throughout Indonesia, has been elaborated. Geckos and mites were captured and immediately preserved in 70% ethanol. Whole mount of the mites was prepared by clearing in lactophenol followed by mounting on polyvinyl lactophenol solutions. The SEM preparation was conducted to examine the detail morphological characters of the mites. The results showed that among 448 individuals of geckos, 221 geckos were infected by Geckobia mites. Prevalences of C. platyurus, H. frenatus, and H. garnotii infested by mites were 14.8%, 50.69%, and 79.6%, respectively. Three different spesies of Geckobia (G1, G2, and G3) could be differentiated; and based on similarities of their morphological characters to ones described in published literatures, Geckobia G2 is Geckobia glebosum and Geckobia G3 is Geckobia bataviensis while G1 could not be identified to the species level. The highest mean intensity of Geckobia G1 infestation was found on H. garnotii (I=7.0), G. glebosum infestation on H. frenatus (I=3.5), and G. bataviensis infestation on H. garnotii (I=11.8). In general, C. platyurus was infested by the least number of mites. Geckobia G1 were found living on the skin folds on the claws, G. glebosum were found mainly on the body and thigh, and G. bataviensis were found on almost all parts of the host’s body. Geckobia mites are distributed randomly throughout Indonesian Archipelago, following the pattern of distribution of their hosts. So it is concluded that Geckobia G1, G. glebosum, and G. bataviensis are sympatric.
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