A first record of Fissimentum Cranston & Nolte (Diptera: Chironomidae) in Peninsular Malaysia

A new record of Fissimentum Cranston & Nolte (Diptera: Chironomidae), Fissimentum sp by its immature stage has been recorded from upstream of Tampik River Pahang, Malaysia for the first time and been described at larval stage. This genus is distinguished from others by having a mentum with a distinct cleft mid, with 6 segmented antenna, in combination with louterborn organs at the apex of segment 2 or 3. Mandible remarks with large seta subdentalis and lacking of pecten mandibularis and seta interna. Descriptions, diagnosis and line drawings of larva material are provided. A brief note on the ecology of the genus is also given

Simulation of Bennet and Brassard 84 protocol with Eve's attacks

A simulation of BB84 protocol of QKD using photonic simulator OptiSystem is demonstrated. The simulation is divided into two categories which are without security attacks scenario and with several attacks scenario that consists of Intercept and Resend and sent new qubits. The simulation results meet the theory of BB84. This project is able to provide better understanding about the quantum key distribution process especially in BB84 protocol

Flexural behaviour of plain concrete prism strengthened by textile fine grained mortar

This paper presents a flexural strength study of concrete incorporated with textile fine grained mortar (TFGM) as a strengthening laminate. TFGM is a combination of fine grained mortar (FGM) with alkali resistant glass fabric (AR glass). Fine grained sand with 600 m maximum size was used in FGM and fly ash (FA) or rice husk ash (RHA) has been used as a partial substitute for ordinary Portland cement (OPC). The potential of TFGM as strengthening laminate was tested under monolithic load with three point flexure loading. The TFGM were laid in layers of two, four, six, and eight. Results shown a promising flexure enhancement of up to three times of unstrengthened concrete when eight layers of both RHA and FA were laid. Load bearing capacity and ductility of the samples increased about 200% and 61%, respectively, compared to control samples as well. The outcome shows a highly potential use of agro-waste as cement replacement to produce load bearing structural component

Uji Daya Hambat Ekstrak Daun Tapak Kuda (Ipomoea Pes Caprae (L) R. Br. ) Terhadap Staphylococcus Aureus

Ipomoea pes caprae (L) R. Br are commonly used by the Indonesian's people to treat wounds, ulcers and as antioxidant. Based on previous research it was contains terpenoids, saponins, alkaloids, tannins and flavonoids. The aim of this study is to determine inhibition capacity of I. pes caprae (L) R. Br leaf extract toward Staphylococcus aureus isolated from patients infected wounds at a concentration of 100 % , 50 % , 25 % , 12.5 % , 6.25 % , 3.125 % and 1.56 %. This research was conducted with post-test design with a control only. Erythromycin is used as a control. One gram of extract dissolved in 10 ml of chloroform. Inhibition zone is measured by paper disc diffusion method on Mueller Hinton agar. Bivariat analysis showed that there is statistically significant differences of diameters of inhibition zone from each concentration (p=0,00) including control (p=0,00). Conclusion of this study are I. pes caprae (L) R. Br leaf chloroform extract have capacity to inhibit S. aureus growth and the inhibition respond increase with concentration

Rasio Tepung Tapioka, Tepung Ketan Dan Tepung Ubi Jalar Ungu Terhadap Sifat Fisikokimia Dodol

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh rasio tepung tapioka, tepung ketan dan tepung ubi jalar ungu terhadap sifat fisikokimia dodol dengan kualitas kimia (kadar air, total antosianin, dan kadar gula reduksi) dan mutu fisik warna (nilai L dan nilai oHue). Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) yang terdiri dari 6 perlakuan T1= Tepung Tapioka  80% :Tepung Ketan 10% :Tepung Ubi Jalar Ungu  10%, T2= Tepung Tapioka  70% :Tepung Ketan 15% :Tepung Ubi Jalar Ungu 15%, T3= Tepung Tapioka  60% :Tepung Ketan  20% :Tepung Ubi Jalar Ungu  20%, T4= Tepung Tapioka  50% :Tepung Ketan  25% :Tepung Ubi Jalar Ungu  25%, T5= Tepung Tapioka  40% :Tepung Ketan  30% :Tepung Ubi Jalar Ungu  30%, T6= Tepung Tapioka  30% :Tepung Ketan  35% :Tepung Ubi Jalar Ungu 35% dengan 3 kali pengulangan. Data hasil penelitian dianalisis menggunakan analisis keragaman pada taraf 5% menggunakan software Co-stat dan diuji lanjut menggunakan uji Beda Nyata Jujur (BNJ) jika terdapat beda nyata. Hasil penelitian menunjukkan bahwa rasio tepung tapioka, tepung ketan dan tepung ubi jalar ungu memberikan pengaruh yang berbeda nyata terhadap mutu kimia (kadar air, total antosianin dan gula reduksi) dan mutu fisik warna (nilai oHue) namun memberikan pengaruh yang tidak berbeda nyata terhadap mutu fisik warna (nilai L). Berdasarkan hasil penelitian menunjukkan bahwa rasio tepung tapioka (30%), tepung ketan (35%) dan tepung ubi jalar ungu (35%) merupakan perlakuan terbaik dengan kadar air sebesar 24,21%, total antosianin 8,48 mg/100g, gula reduksi 7,83%, nilai L sebesar 23,85 dan nilai oHue 360,14.   Kata Kunci: dodol, tepung ketan, tepung tapioka, tepung ubi jalar ungu

Physico-mechanical properties of polymer concrete containing micro-filler of palm oil fuel ash

Objective of this study is to present a research conducted on ground (fine) and unground (coarse) POFA in polymer concrete (PC) followed by determination on the physico-mechanical properties of PC. Physical properties of micro-fillers and mechanical properties of produced PCs were characterized. Calcium carbonate and silica sand were also used as micro-fillers for comparison purpose. The samples were subjected to compression and flexural. Morphology images of the particles were captured under morphology test to support the findings. Results showed that fine POFA micro-filler has a highly promising potential in becoming PC filler compared to coarse micro-filler. Additionally, its produced PC had comparable strength to PC with calcium carbonate. From the strength development and sustainability stand point, fine POFA has demonstrated its capability to produce quality and sustainable P

Settlement reduction of dredged marine soils (DMS) admixed with cement & waste granular materials (WGM): 1-D compressibility study

Dredged marine soils (DMS) are considered as geo-waste and commonly disposed far into the sea. Environmental impacts raised from dredging such as turbidity and disturbance of marine ecosystem had increased the social demand to reuse DMS in engineering application. Typically, DMS have low shear strength and low bearing capacity. Hence, the DMS could be strengthened up by soil solidification. In present study, waste granular materials (WGM) such as coal bottom ash (BA) and palm oil clinker (POC) were utilized as additional binder to cement. The DMS were solidified with 3 series of admixtures; namely cement and/or WGM. The factor that influenced the compressibility of the soil sample such as percentages of admixtures were considered. Proportioned samples of 10, 15 and 20 % of cement, and/or 50 and 150 % of WGM of dry weight of DMS were subjected to one-dimensional oedometer test. The test samples were cured for 7 days in room temperature. Results show that cement- and WGM-admixed DMS have reduced the soil’s compressibility considerably than the untreated sample. As expected, the cemented soil had significantly reduced the settlement better than WGM-admixed soil. Hence, homogeneous samples of 15C50BA and 10C100POC produced almost similar reduction of compressibility as sample 20C. Therefore, reusing WGM as partial replacement of cement in DMS could provide beneficial reuse of these materials

Optimasi Produksi Hasil Perencanaan Sucker Rod Pump Terpasang Pada Sumur Tmt-y Di Tac-pertamina Ep Golwater Tmt

Sumur TMT-Y menggunakan sucker rod pump sebagai metode pengangkatan buatan dalam memproduksikan minyak. Data pada bulan Maret 2014 menunjukkan bahwa efisiensi volumetris sumur tersebut masih dibawah 70% sehingga perlu dilakukan peningkatan efisiensi volumetris diatas 70%. Peningkatan dilakukan dengan menggunakan cara trial and error terhadap parameter stroke length dan kecepatan pompa. Berdasarkan kemampuan berproduksi sumur, sumur TMT-Y belum mencapai produksi optimum sebesar 1195.58 bpd. Untuk menghasilkan produksi optimum sebesar 1195.58 bpd tersebut didapatkan nilai stroke length 192 inchi dan kecepatan pompa 12 spm

Keanekaragaman Spesies Tumbuhan di Arealnilai Konservasi Tinggi (Nkt) Perkebunan Kelapa Sawit Provinsi Riau

Palm oil plantation is important role of increased economic in Indonesia. Beside of that, the exsistence of palm oil plantation has negative effect in ecology, that is decreasead of plant diversity. The area of high conservation value (HCV) is an effort to reducing the negative impact of oil palm plantation. The purpose of this study is to identify the level of diversity of plant species and forms of community interaction in the area of HCV. It is can used to basic of management of HCV areas that can be exploited in a sustainable manner. Data collected in the three palm oil companies in Riau Province that PTPN V, PT Mitra Unggul Pusaka (MUP), and PT Ivomas Tunggal on March till April 2016. The data collection was using a single plot and interviews. Data were analyzed using Margalef diversity index, Shannon wiener index, Evenness index, and descriptive analysis. The result showed that the level of diversity of plant species in HCV in each company is different. The highest value of plant based species richness Margalef index is PTPN V (16,836), while the value of the highest plant species diversity by Shannon wiener index is PT MUP (3,773). The highest value by evenness index is PT MUP (0,901).Community interaction that occurs in the region of HCV is utilization such as animal feed, food plants, firewood, and the honey-producing trees