bluuebunny/crossref_metadata_2025 huggingface dataset:
Elmar Altvater und die fehlende Theorie des Weltmarktes
Authors: Sablowski Thomas
Published: September 2018

Am 1. Mai 2018 verstarb Elmar Altvater (siehe PROKLA 191). Unter www. altvater.prokla.de haben wir alle Beiträge von ihm, die er (zum Teil mit anderen zusammen) in der PROKLA veröffentlichte, frei zugänglich gemacht. Wie relevant, aktuell und weitsichtig seine wissenschaftliche Arbeit war und wie aktuell sie noch heute sind, wollen wir in den kommenden zwei Ausgaben zeigen. Anhand jeweils eines PROKLA-Artikels werden wir auf insgesamt vier thematische Schwerpunkte seiner Arbeit eingehen. In der vorliegenden Ausgabe stellt Thomas Sablowski Altvaters Beitrag zu einer Theorie des Weltmarkts vor. Ein Thema, das Altvater von Beginn seiner wissenschaftlichen Arbeit begleitet hat.
Pembuatan Komponen Guide, Cam Chain Pada Sepeda Motor Dari Bahan Baja Tahan Karat 316 L Dengan Teknologi Metalurgi Serbuk (Powder Metalurgy)
Authors: Taryaman Tatang , Abdullah Hafid , Rachmat Rudy S
Published: September 2018

Proses metalurgi serbuk merupakan suatu proses pengerjaan logam untuk menghasilkan komponen dengan ketelitian tinggi ataupun komponen yang memiliki porositi. Proses ini dapat digunakan untuk membuat benda-benda yang memiliki kekerasan yang sangat tinggi, seperti: mata pahat, dan juga dapat menghasilkan komponen yang melumasi sendiri. Salah satu komponen yang memiliki fungsi melumasi sendiri adalah bearing, bearing ini banyak digunakan untuk poros yang kondisi operasinya mengalami gesekan yang cukup tinggi, oleh karena itu fungsi melumasi sendiri sangat penting untuk mengurangi gesekan yang terjadi. Kemampuan melumasi sendiri dari komponen bearing dihasilkan oleh porositi yang ada pada produk yang dihasilkan oleh proses metalurgi serbuk. Pada saat komponen bekerja dan terkena gesekan akan timbul panas sehingga minyak pelumas yang terserap kedalam pori-pori komponen tadi akan keluar karena massanya memuai, dan pada saat dingin akan masuk kembali. Penelitian ini bertujuan untuk mengetahui karateristik dan parameter proses pembuatan bearing menggunakan material baja tahan karat 316 L dengan teknologi metalurgi serbuk. Penelitian ini menggunakan target yaitu bearing untuk komponen guide, cam chain yang masih diimpor, dengan memvariasikan beban kompaksi yaitu 7-8 ton, 9-10 ton, 15-17 ton. Dan waktu sinter 140 menit dan 120 menit, sedangkan temparatur sinter yang digunakan adalah 1120oC. Kemudian hasil dari pengujian densiti, porositi, kekerasan dan struktur mikro dibandingkan dengan bearing impor.
Penelitian Pembuatan Badan Roda Lori dari Pelat Baja Hasil Rol Panas dengan Metode Proses Tarik Dalam
Authors: Kosasih Kosasih , Abdullah Hafid
Published: September 2018

Penelitian pembuatan badan roda lori dari pelat baja untuk pengontrol jalan kereta api dilakukan dengan proses tarik dalam. Tujuannya adalah untuk memperbaiki timbulnya cacat keriput dan sobek yang sering diakibatkan oleh kesalahan pada konstruksi cetakan. Cara penanggulangannya digunakan mesin pres hidrolik aksi ganda, yang mempunyai tekanan pemegang bakalan yang sesuai dan konstan. Berdasarkan hasil percobaan: (1) bahan yang digunakan adalah pelat baja hasil rol panas dengan kadar karbon 0,29 %, (2) Φ bakalan 540 mm dengan LDR 1,58, (3) bahan cetakan dan penekan adalah besi cor kelabu dengan HB = 260 kg/mm2, (4) gaya tekan pemegang bakalan adalah 15 ÷ 47 ton dan 94 ÷ 138 ton. Hasil penelitian membuktikan bahwa, sirip yang terbentuk pada badan roda lori menggunakan Φ bakalan 540 mm relatif kecil sehingga dapat menghemat biaya, dibandingkan dengan Φ 560 mm karena sirifyang terbentuk lebih besar.
PEMODELAN PEMBANGKIT LISTRIK TENAGA GELOMBANG AIR LAUT
Authors: Nurdiansyah Budy
Published: September 2018

Krisis energi telah diprediksikan akan melanda dunia pada tahun 2015. Hal ini dikarenakan semakin langkanya minyak bumi dan semakin meningkatnya permintaan energi, Uotuk itu diperlukan sebuah terobosan untuk memanfaatkan energi lain, selain energi yang tidak terbarukan. Karena jika tergantung pada energi yang tidak tcrbarukan, maka di mas a depan kita akan kesulitan untuk memanfaatkan energi ini karena keterbatasan populasi dari energi tersebut. Untuk itu akan dicoba untuk menggali informasi tentang tenaga gelombang laut yang sebenamya sudah dimanfaatkan oleh banyak negara, termasuk Indonesia. Kegiatan penelitian akan dilakukan dengan merancang dan membuat pemodelan untuk menggerakan turbin dengan sistem rakit cockerell yang telah diteliti oleh negara Portugal dan dibcri nama Aquacadoura yang telah menghasilkan listrik sebesar 2,25 MegaWatt bisa menerangi sekitar 1500 rumah atau setara 3000 rumah di Indonesia.
PENGEMBANGAN PRODUK COR ALUMUNIUM PADA PROSES PENGECORAN CENTRIFUGAL (SPINNING CASTING)
Authors: Furqon M , - Hafid
Published: September 2018

Telah dilakukan pengembangan produk cor alumunium pada proses pengecoran centrifugal. Tujuannya adalah untuk mengetahui pengaruh suhu penuangan dan putaran terhadap sifat mekanik, struktur rnikro dan cacat produk cor dalam proses pengecoran centrifugal. Pengecoran centrifugal merupakan salah satu proses pengecoran yang dapat menghasilkan produk cor yang merniliki ketebalan yang kecil « 3 mm). Kondisi ini tidak bisa dihasilkan dengan proses pengecoran grafiti. Berdasarkan hasil percobaan diketahui bahwa melalui variasi parameter proses pengecoran yaitu suhu penuangan dan kecepatan putaran, diperoleh kondisi produk cor yang berbeda. Semakin tinggi suhu penuangan akan dihasilkan besar butir yang semakin kasar, yaitu pada suhu penuangan 860 DC adalah 51,3 Ii m dan pada suhu penuangan 760 DC adalah 31 Jl m. Semakin tinggi suhu penuangan prosentase porositi semakin meningkat, yaitu pada suhu penuangan 860 DC adalah 6,5% sedangkan pada suhu penuangan 760 DC adalah 2,8%. Dernikian juga ukuran cacat porositi semakin tinggi suhu penuangan semakin besar, pada suhu penuangan 860 DC adalah 121,1 micro meter sedangkan pada suhu penuangan 760 C adalah 64 micro meter. Hasil penelitian membuktikan bahwa putaran yang tinggi akan sifat mekanis dari material cor, namun suhu penuangan yang tinggi dapat menurunkan sifat mekanis dari material cor.
LATENCY KAMERA PADA PENGOLAHAN CITRA DIGITAL REAL-TIME
Authors: Hartono Puji , Trismiyati Trismiyati
Published: September 2018

Latency pada aplikasi real-time menjadi faktor yang sangat penting karena hasil akhir tidak hanya ditentukan oleh nilai keluarannya saja, tetapi juga waktunya. Pada pengolahan citra digital waktu nyata, faktor penyumbang latency yang signifikan adalah pada kamera. Hasil pengujian menunjukkan bahwa kamera tipe webcam mempunyai latency yang lebih kecil daripada kamera tipe IP Camera karena pada IP camera, data dikirimkan melalui media jaringan. Pada pengujian 2 buah seri webcam didapatkan latency < 200 ms, sedangkan pada 2 buah seri IP camera didapatkan latency > 300 ms. Nilai latency juga dipengaruhi oleh jumlah fps yang digunakan, semakin tinggi nilai fps maka latency juga semakin besar. Nilai latency pada kamera akan menjadi pertimbangan pada perancangan sistem yang lebih besar sehingga faktor latency dapat diantisipasi dan sistem yang dibangun tetap dapat berfungsi dengan benar.
MODIFIKASI KOMPONEN TRANSPORTER PADA MESIN COMBINE-PADDY HARVESTER MENJADI COMBINE CORN HARVESTER
Authors: Wiranegara Haruman , CAHYADI DENI
Published: September 2018

Mesin Combine Paddy Harvester adalah mesin pemanen padi yang berfungsi melakukan pemanenan sekaligus pemipilan padi (kombinasi). Transporter adalah komponen pada kendaraan combine harvester yang berfungsi mentransportasikan hasil pemotongan padi dari bagian Auger ke Thresher. Komponen transporter terdiri dari elemen casing, rantai-sprocket, bucket-conveyor dan poros.  Tujuan dari perancangan ulang ini adalah memodifikasi transporter. Modifikasi dilakukan dengan tujuan untuk mengubah fungsi transporter pada mesin pemanen padi menjadi mesin pemanen jagung (combine-corn harvester). Tahap-tahap modifikasi yang dilakukan adalah: melakukan pengujian awal (tanpa modifikasi), mengidentifikasi dan menganalisis hasil pengujian awal, mengukur semua bagian transporter,  menganalisis sistim kerja transporter, menguji bahan bucket-conveyor, mencari alternative solusi.   Modifikasi yang telah dilakukan dengan cara mengubah diameter sprocket dan mempertebal dimensi bucket-conveyor.
PERANCANGAN RANGKA KENDARAAN MESIN PEMANEN JAGUNG KOMBINASI TERHADAP FAKTOR KEAMANAN
Authors: Doloksaribu Martin , Harbintoro Sony , Khairi Agus Juniawan , Jamilah Sina
Published: September 2018

Pada penelitian ini dilakukan perancangan desain rangka untuk mesin kombinasi pemanen jagung tipe snapping roll-auger thresher. Desain melingkupi bentuk rangka, bentuk profil penyusun rangka dan ketebalan profil. Rangka didesain menggunakan profil kanal C, tubular dan hollow square bar dengan ketebalan 5 mm. Penilaian (scoring) dan simulasi dilakukan untuk menentukan desain rangka yang optimal. Penilaian kemudahan fabrikasi dianalisa secara kuantitatif. Simulasi pembebanan, berat sasis, dan safety factor dilakukan terhadap desain rangka. Analisa kuantitatif kemudahan fabrikasi memberikan nilai 7, 7 dan 10 terhadap bentuk profil kanal C, tubular dan squre. Analisa pada desain rangka dengan kanal C memberikan berat 107 kg, nilai beban maksimal yang diterima 46 MPa, deformasi maksimal 0,079 mm dan SF 5,43. Untuk tubular adalah 46 kg, 112 MPa, 0,492 mm dan SF 2,23. Untuk square adalah 76 kg, 55 MPa, 0,151 mm dan SF 4,55. Desain rangka dengan profil square section merupakan desain rangka dengan tingkat kemudahan fabrikasi paling baik dan memiliki perpaduan berat dan SF yang optimal.
Pengujian Mesin Grading Buah Manggis Tipe Piringan
Authors: - Trismiyati , Jamilah Sina , Siswanto Hendri , Dewi Nur Islami , Rumbara Robby Debriand , Prawira Muhammad Yudha
Published: September 2018

Buah manggis merupakan salah satu jenis buah tropis. Hasil panen buah manggis dipisahkan antara yang baik dan tidak, serta di-grading berdasarkan ukuran. Grading dilakukan petani atau pedagang secara manual dengan SOP yang ada. Waktu, energi, dan biaya yang besar diperlukan untuk teknik ini. Karena itu perlu dilakukan mekanisasi proses grading. Telah dilakukan kajian penelitian-penelitian mekanisasi grading buah manggis dengan berbagai tipe termasuk piringan. Selain itu juga dilakukan survey lapangan ke dinas terkait. Dari hasil kajian, survey, maka dilakukan penelitian rancang bangun dan pengujian mesin grading tipe piringan dengan grade buah manggis adalah A dengan diameter (D) > 64 mm, AA dengan 53 mm < D ≤ 64 mm, dan AAA  dengan D ≤ 53 mm. Pengujian dilakukan dengan variasi kecepatan putar piringan. Hasil yang terbaik adalah pada putaran piringan 68,4 rpm. Dengan putaran piringan tersebut, diperoleh kapasitas mesin rata-rata senilai 641,015 kg/jam. Hasil pengujian menunjukkan bahwa prototipe mesin grading buah manggis sudah dapat berfungsi memisahkan buah manggis sesuai dengan grade-nya. Rasio kontaminasi rata-rata grading  sebesar 31,6 % dengan standar deviasi 12,46 %. Hasil penelitian ini dapat digunakan untuk penelitian lebih lanjut sehingga bisa digunakan oleh petani, pedagang, dan industri mesin serta industri kecil dan menengah pengolah buah manggis di Indonesia.
UJI BANDING ANTAR LABORATORIUM UNTUK REFERENCE MULTIMETER DALAM MENJAMIN STANDAR MUTU LABORATORIUM KALIBRASI
Authors: Fauzi, ST. Muhammad Nauval
Published: September 2018

Uji banding antar laboratorium telah dilakukan oleh laboratorium kalibrasi Balai Besar Logam dan Mesin (BBLM) bersama dua laboratorium kalibrasi PT. Telkom, yaitu laboratorium kalibrasi Telkom Maintenance Service Center Area V Jawa Timur (MSC Surabaya) dan Area III Jawa Barat (MSC Cibinong) menggunakan alat standar kalibrasi Reference Multimeter 8508A. Pengukuran dilakukan pada alat Reference Multimeter 8508A masing-masing peserta uji banding terhadap dua alat referensi yaitu Multiproduct Calibrator 5500A dan 5700A untuk melihat seberapa besar nilai angka kesalahan (error number= En) yang didapatkan disetiap titik pengukuran pada beberapa besaran pengukuran. Titik pengukuran yang diambil adalah 100 mV, 10 V dan 700 V pada DC dan AC Voltage, 100 µA, 100 mA, dan 10 A pada DC dan AC Current ;1 Ω, 100 KΩ dan 10 MΩ pada Resistance 2 wire; dan 10 Ω, 1 KΩ, dan 100 KΩ pada Resistance 4 wire. Data pengukuran yang diverifikasi, dihitung nilai mean, standar deviasi dan nilai angka kesalahan (En). Apabila nilai En hasil perhitungan -1 ≤ En ≤ 1 maka bisa disimpulkan bahwa pada titik pengukuran tersebut masih dalam kondisi setara, sedangkan apabila diluar -1 ≤ En ≤ 1 maka dianggap tidak setara. Hasil uji banding ketiga laboratorium menunjukkan nilai En dalam kondisi setara untuk keseluruhan besaran dan titik pengukuran kecuali pada titik pengukuran 10 Ω pada Resistance 4 wire untuk Multiproduct Calibrator 5700A di kedua laboratorium kalibrasi Telkom.
PENGARUH VARIASI PENAMBAHAN SILIKON DAN PERLAKUAN PANAS PADA BAJA PADUAN RENDAH TERHADAP SIFAT MEKANIK DAN STRUKTUR MIKRO UNTUK APLIKASI TRACKLINK TANK
Authors: Pratomo Sri Bimo , Doloksaribu Martin , Taufiq Husen , Mulyani R. Henny , Lesmana Eri Indra
Published: September 2018

Penambahan unsur silikon (Si) terhadap baja paduan rendah mampu memberikan peningkatan terhadap sifat mekanik. Pembuatan tapak kendaraan tempur menggunakan variasi penambahan  unsur silikon (Si) sebesar 0,5%; 0,9%; 1,2% dan 1,6%Si. Pada tiap spesimen diberikan perlakukan panas annealing, normalizing dan normalizing kipas. Pengujian komposisi kimia, kekerasan, ketahanan aus dan pengujian struktur mikro dilakukan terhadap spesimen tapak kendaraan tempur. Hasil uji kekerasan menunjukkan bahwa kekerasan meningkat terhadap peningkatan kandungan silikon sebesar 29,61 HRC pada kandungan silikon sebesar 0,5%Si; 30,93 HRC pada 0,9%Si; 33,38 HRC pada 1,2%Si dan 34,96 HRC pada 1,6%Si. Uji ketahanan aus menunjukkan bahwa persentase kehilangan massa semakin kecil (ketahanan aus semakin besar) terhadap peningkatan kandungan silikon yaitu 0,1581% pada kandungan silikon sebesar 0,5%Si; 0,0465% pada 0,9%Si; 0,0404% pada 1,2%Si dan 0,0182% pada 1,6%Si. Perbedaan kandungan unsur silikon (Si) mempengaruhi fasa bainite dari baja paduan rendah; semakin tinggi kandungan unsur silikon (Si) maka fasa bainit semakin tersebar merata dan memiliki butir yang semakin halus. Sifat mekanik optimal didapatkan pada kandungan silikon sebesar 1,6%.
STUDI AWAL SOLVENT DEBINDING FEEDSTOCK METAL INJECTION MOLDING FE2%NI
Authors: Jaman Winda Sri , Alty Shinta Virdhian , Afrilinda Eva
Published: September 2018

Metal Injection Molding (MIM) merupakan proses manufaktur yang mempunyai 4 tahapan proses utama yaitu mixing, injection, debinding dan sintering. MIM telah banyak diterapkan diberbagai bidang industri manufaktur seperti automotive, tool steel cutting, komponen elektronik, alat-alat kesehatan atau kedokteran, komponen  senjata, fashion dan lain-lain. Proses Debinding merupakan salah satu proses yang sangat penting dalam proses MIM, dengan berbagai keragamannya. Solvent debinding adalah cara memisahkan/ekstrasi atau menghilangkan polimer dari serbuk logam/ feedstock. Kelebihan dari solvent debinding ini adalah larutan yang digunakan dapat di daur ulang sehingga mengurangi biaya produksi produk MIM.                Maka penelitian ini diperlukan untuk memenuhi kebutuhan industri dan memperkaya proses-proses debinding dengan berbagai larutan (solvent) kima. Studi awal solvent debinding pada feedstock Fe2%Ni hanya dibatasi untuk menhilangkan binder jenis paraffin wax, karena penggunaannya hampir di setiap feedstock MIM terdapat paraffin wax. Parafin Wax dilarutkan dan direndam dengan menggunakan ethanol, n-hexane, heptana dengan parameter waktu 2,3,4 jam dan temperatur 40,45,50°C untuk ethanol dan n-hexane, heptana dengan temperatur 50,55 dan 60°C.                Kelarutan ethanol terhadap kehilangan berat sangat rendah, pada waktu 2 jam dan temperatur 40°C mempunyai kehilangan berat terendah 0,269% dengan kehilangan berat tertinggi pada waktu 4 jam dan temperatur 50°C dengan kehilangan berat 0,86%. Kelarutan n-hexane terhadap kehilangan berat, pada waktu 3 jam dan temperatur 40°C mempunyai kehilangan berat terendah 2,094% dengan kehilangan berat tertinggi pada waktu 4 jam dan temperatur 50°C dengan kehilangan berat 2,284%. Kelarutan heptana terhadap kehilangan berat tertinggi dibandingkan dengan ethannol dan n-hexane, pada waktu 3 jam dan temperatur 50°C mempunyai kehilangan berat terendah 1,703% dengan kehilangan berat tertinggi pada waktu 4 jam dan temperatur 60°C dengan kehilangan berat 4,884%. Kondisi feedstock yang sudah di debinding terlihat masih terdapat sisa-sisa binder selain paraffin wax, keragaman bentuk pada serbuk menjadikan kehomogenan pada feedstock.Kata kunci: Solvent Debinding, Ethanol,N-Hexane,Heptana
PENGARUH CARBON TERHADAP STRUKTUR MIKRO DAN SIFAT MEKANIK BAJA MANGAN AUSTENITIK
Authors: Pujiyulianto Eko
Published: September 2018

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan unsur carbon (C) terhadap struktur mikro dan sifat mekanik baja mangan. Baja mangan dengan kandungan mangan (Mn) sebesar 14%, divariasikan jumlah carbon mulai dari 0.4% hingga 1.6%. Seluruh sampel dianalisa struktur mikro, lalu diuji sifat mekaniknya meliputi kekerasan, ketahanan aus, ketahanan impak dan kekuatan tarik. Kekerasan rata rata seluruh sampel tidak mengalami perubahan yang signifikan, yaitu 24 HRC, dengan kekerasan rata rata fasa austenit 34 HRC, dan fasa karbida 52 HRC. Hasil pengujian ketahanan aus memperlihatkan bahwa dengan meningkatnya kadar carbon maka ketahanan aus akan semakin meningkat, persentase kehilangan berat terkecil pada kandungan carbon 1,6% sebesar 0,01%. Kekuatan impak dan elongasi meningkat  pada kadar carbon 0,4% hingga 1 %, dan menurun pada 1,4% hingga 1,6%. Kekuatan impak paling tinggi yaitu pada kadar carbon 0,7% dan 1% sebesar 187 joule dan 167 joule dengan elongasi 37,7% dan 38,2%. Kekuatan tarik meningkat dengan meningkatnya kadar carbon dari 0,4 % - 1%, namun kekuatan tarik menurun ketika kandungan carbon lebih dari 1%. Baja mangan dengan kadar carbon antara 0,7 % hingga 1 % memiliki kombinasi kekuatan impak, elongasi dan kekuatan tarik yang tinggi. Baja mangan dengan kadar carbon 0,7% dan 1% memiliki fasa karbida yang paling sedikit, sehingga ketahanan impak, elongasi dan kekuatan tariknya tinggi.
PENGARUH TEMPERATUR DAN WAKTU TAHAN PROSES PERLAKUAN PANAS TEMPER TERHADAP STURKTUR MIKRO DAN KEKERASAN PERMUKAAN RIM RODA KERETA API PROTOTIPE HASIL PENGERASAN INDUKSI
Authors: Doloksaribu Martin , Pratomo Sri Bimo , Hanifi Rizal , Arifin Muhamad Yusup Malik
Published: September 2018

Prototipe roda kereta api telah dibuat dengan metode pengecoran gravitasi namun kekerasan permukaan belum memenuhi standar. Penelitian ini dilakukan untuk meningkatkan kekerasan prototipe roda kereta api agar mencapai nilai kekerasan sesuai standar dengan metode perlakukan panas. Prototipe roda kereta api diberikan perlakuan panas induction hardening (pengerasan induksi) dan didinginkan dengan media air. Prototipe roda kereta api hasil pengerasan induksi diberikan perlakuan panas temper untuk meningkatkan keuletan dan ketangguhan dengan menurunkan kekerasan. Perlakuan panas temper dilakukan pada termperatur 500oC, 600oC dan 700oC dengan waktu tahan selama 1 dan 3 jam. Uji komposisi kimia, uji keras dan pengamatan struktur mikro dilakukan terhadap spesimen prototipe roda kereta api dan roda kereta api impor sebagai pembanding. Hasil uji kekerasan pada spsimen pengerasan induksi pada 900oC adalah 381 HB (41 HRC). Hasil uji kekerasan pada spesimen  perlakuan panas temper adalah 311, 258 dan 243 HB untuk temperatur temper 500oC, 600oC dan 700oC dengan waktu tahan selama 1 jam. Sedangkan hasil uji kekerasan pada spesimen perlakuan panas temper pada temperatur 500oC, 600oC dan 700oC dengan waktu tahan 3 jam adalah 271, 253 dan 237 HB. Nilai tersebut lebih besar dibandingkan nilai kekerasan roda kereta api impor yaitu 237 HB (21 HRC). Struktur mikro menunjukkan peningkatan fasa ferit dengan meningkatkanya temperatur temper dan waktu tahan. Kekerasan paling besar adalah 311 HB (33 HRC) pada temperatur temper 500oC dengan waktu tahan selama 1 jam.
Effect of benzyl adenine on the in vitro culture of young female flowers of Breadfruit (Artocarpus altilis (Park.) Fosberg)
Authors: Ha Suong Thi Tuyet , Vo Mai Thi Bach
Published: September 2018

Breadfruit (Artocarpus altilis (Park.) Fosberg) is a woody tropical tree. In addition to the nutritious value, breadfruit is also a precious medicinal source, because every part of it contains many natural compounds with biological activity. With the aim of providing a pharmaceutical source cond food with high yield, as well as the short harvert time, we examined the effects of the concentration of benzyl adenine (BA) on the in vitro culture of young female breadfruit flowers. The results showed that in the first phase of the culture, the concentration of 5 mg/L BA stimulated an increase in size of each female flowers, especially in the calyx. The increasing concentration of 10 mg/L BA stimulated the formation of callus in the calyx of each female flowers. Roles of respiration rate and endogenus hormones were discussed to understand the physiological changes in the in vitro culture of young female breadfruit flowers.
Molecular typing protocol of ss469415590 in IFNL4 gene in relation to the clearance of hepatitis C virus
Authors: Nguyen Hieu Trung , Tran Linh Thi Nhut , Nguyen Hung Huu , Nguyen Chuong Hoang
Published: September 2018

We built a molecular typing protocol of the ss469415590 SNP in the IFNL4 gene based on the real-time PCR technique with two Taqman probes which are specific for each allele of ss469415590. The protocol includes: (1) DNA extraction from whole blood; (2) DNA amplification in real-time PCR reactions with the primer pair of ss469415590_IFNL4_F - ss469415590_IFNL4_R and two speific Taqman probes ss469415590_IFNL4_FAM for the G allele and ss469415590_IFNL4_VIC for the TT allele. The typing protocol was evaluated on 95 clinical DNA samples. The allele frequencies were calculated as 93 % for the TT allele and 7 % for the G allele. The comparison of the typing protocol to the sequencing method revealed 100 % identical results.
Synthesis of SiO2-TiO2:Yb3+ glass-ceramics and characterization of structure and optical properties
Authors: Huynh Thanh Tat , Tran Van Thi Thanh
Published: September 2018

In this work, the monoliths of 85 % SiO2-15 % TiO2 doped Yb3+ ions at different contents have been prepared by sol-gel method. The measurement of FT-IR, Raman spectroscopic and XRD analysis show the formation of anatase TiO2 nanocrystals with average size about 15–20 nm in silica matrix. Moreover, the pyrochlore crystals of Yb2Ti2O7 begin to form in the samples when content of Yb3+ reaches to 1 mol %. TiO2 Yb3+ 2F7/2 2F5/2 truyền năng lƣợng kích thích UV EV EC mức khuyết tật 974 nm The energy transferred from TiO2 crystals to Yb3+ ions is proven by the characteristic emission spectrum of Yb3+ at the wavelength of 980 nm when the samples are excited by the wavelength of 300 nm. The photoluminescence intensity is highest at 0.1% mol of Yb3+ and gradually decreases with doping content
Assessing the vulnerability to climate change – review
Authors: Le Tuan Ngoc
Published: September 2018

Climate change (CC) and their related impacts become clearer and significantly affect socio-economic fields as well as public health. Accordingly, the assessment of vulnerability to CC becomes necessary and is the basis for the formulation of measures to enhance the adaptive capacity and to mitigate CC effects. This work aims to review the situation of research and assessment of vulnerability; especially approaches and assessment methods, serving establishing methodology of vulnerability assessment due to CC for concerned industries, sectors, areas, and objects.
Genome-wide analysis of NIN-like protein (NLP) family in maize (Zea mays L.) by using bioinformatic methods
Authors: Cao Bang Phi
Published: September 2018

The NIN-like proteins (NLP) belong to RWP-RK transcription factor family and possess the similarity characteristics of NIN (Nodules INception). The NLPs regulate the expression of genes which are involved in nitrate signaling in plants. In this work, we have performed a genome-wide analysis of the NLP gene family in maize (Zea mays L.) through the bioinformatic methods. We identified a total of nine NLP encoding genes in whole genome of maize. The genomic sequences of these genes were from 2855 to 8092 nucleotides in length and contained three or four introns. Their predicted protein sizes ranged in size from 786 to 945 amino acids. The theoretical isoelectric point values of most deduced protein were less than 7. The maize NLP proteins possessed conserved regions of plant NLP at N-terminal as well as at C-terminal including the RWP-RK and PB1 domains. Based on the phylogenic analysis, we detected three current whole-genome gene duplication events which occurred in maize genome apter speciation point. All of NLP genes expressed in tissues at different development stages, from germinating seed to maturation seed were examined. The ZmNLP5, ZmNLP6 and ZmNLP7 were weakly expressed in comparison to others genes in most examined tissues.
Study on tau-aggregation inhibitors in Alzheimer’s disease of methanol extracts of several medicinal plants collected in the Mekong Delta, Vietnam
Authors: Nguyen Dua Kim , Dai Trang Thi Xuan
Published: September 2018

Tau protein and Aβ-amyloid have been studied as pathological aggregations, which form neurofibrillary tangles and amyloid plaques in Alzheimer’s disease brain. Tau protein plays a critical role in neuron that binds to microtubules and assists with their formation and stabilization. However, unbinding of hyperphosphorylated tau and microtubules leads to unstable and disintegrating state of neuron. The free tau proteins form neurofibrillary tangles. The purpose of this study is to screen in vitro the the tau-aggregation inhibitory activity of nine methanol extracts of Psidium guajava leaf, Nelumbo nucifera leaf; wild Ipomoea aquatic, Cleome rutidosperma aerial parts, Artocarpus altilis leaf, cultivated Ipomoea aquatic, Centella asiatica leaf, Mimosa pudica L. aerial parts, Nelumbo nucifera seed pod collected in the Mekong Delta. Nine herbs were collected, dried and extracted with methanol. The half maximal inhibitory concentration (IC50) of methanol extracts was measured by Thioflavin T assay at various concentrations. Silica gel column chromatography was employed to fractionate the Psidium guajava leaf crude extract. Nine methanol extracts were proved to reduce the tau aggregation in vitro. Extracts from leaves of Psidium guajava, Artocarpus altilis and Nelumbo nucifera impressively inhibited the tau aggregation with IC50 at 0.39 mg/mL, 1.05 mg/mL and 1.24 mg/mL, respectively. Methylene blue was used as a positive control, with IC50 at 1.35 μM. The five examined fractions of guava leaf were proved to inhibit the tau aggregation ranging from 33.70 % to 48.49 %, except the 100 % of hexane fraction showed almost no effect on the tau aggregation inhibitor.
Correlations between geochemical characteristics of source rocks and chemical compositions of crude oils from LD field, block 15-1/05, Cuu Long basin
Authors: Do Thanh Ngoc , Bui Luan Thi
Published: September 2018

LD field is the second oil discovery on offshore Block 15-1/05, which is located 15 kilometres East-North East of the first discovery (LDN field). The major aim of this study is to evaluate correlations between accumulated hydrocarbons and source rocks of LD structure, in order to verify their potential for generating oil and gas. Therefore, the authors have synthesized and analyzed geochemical and biomarker characteristics, structures, and chemical compositions of crude oils and source rock extracts by gas chromatography–mass spectrometry analysis to interpret hydrocarbon origins of the LD field. Oil samples and source rock hydrocarbon extracts were from LD-1X/LD-1Xst and LD-3X/LD-3Xbis well of the LD field. Based on biomarker distributions, five oil samples as well as nineteen studied extracts from source rocks indicated predominant non-marine algal organic substances as well as contributions of bacterial and higher plant input. Such samples are characterized by the presence of oleananes, high concentration of C27 steranes compared to C29 and C28 steranes, and the presence of 4-methyl C30-steranes low to moderate concentration. Those evidences show that the oil samples are derived from a single source unit.
General solutions of the theme “Light propagation in optical uniaxial crystals”
Authors: Truong Nghia Quang , Nguyen Huong Tu Ngoc
Published: September 2018

In this article, we introduce a new approach to receive general solutions which describe all of the properties of the light propagating across optical uniaxial crystals. In our approach we do not use the conception of refractive index ellipsoid as being done in references. The solutions are given in analytical expressions so we can handly calculate or writing a small program to compute these expressions.
An FPGA-based single-precision floating-point 2048-points FFT implementation based on adaptive angle recoding CORDIC
Authors: Truong Quynh Thi Nhu , Vo Thao Thi Phuong , Hoang Thuc Trong
Published: September 2018

In this paper, an FPGA-based single-precision floating-point 2048-point FFT implementation is proposed, based on an adaptive angle recoding CORDIC algorithm. The design is built and verified on Altera Stratix V FPGA chip. The implementation had 102.55 MHz maximum frequency, throughput result of 8424.382 FFTs/s, and resources utilization of 76,282 ALUTs and 15,687 registers. The accuracy results were 5.889E-06 (Mean-Square-Error (MSE).
Application of MIKE 21 FM modelling to simulate the water quality at the coastal area Đình Vũ
Authors: Tran Thai Hong
Published: September 2018

The MIKE 21 FM model, developed by the Danish Hydraulic Institute, is a distributed system model that is used in hydrological calculations, water quality simulation, sediment transport calculations, resources and water environment in rivers, estuaries, coastal areas, and seas... This paper is an initial step in setting and establishing a set of model's parameters for simulating contaminant transport at the Dinh Vu coastal area, Hai Phong city under different scenarios. The model was calibrated and validated with the real data at 8 surface water quality monitoring sites at Hai Phong coastal area in 2014 and 2015. The result obtained by MIKE 21 HD for adjusters and good quality with specified Nash are 0.96 and 0.93, respectively. The relatively wrong number of Ecolab parameters are below 20 %.
Assessing the impact of saltwater intrusion on agricultural land in Nghe An’s coastal areas in the context of climate change
Authors: Hoang Ve Ngoc , Tran Thai Hong
Published: September 2018

Climate change is occurring increasingly complex and unpredictable, therefore the phenomenon of saltwater intrusion at coastal areas is also increasingly serious. The saltwater intrusion threatens the production and life of people in Nghe An’s coastal areas. Our study used MIKE11, MIKE 21 and ArcGIS software to assess the effects of saltwaters intrusion on agricultural land. The results indicate that the agricultural lands in Nghe An’s coastal areas are at high hazards of saltwater intrusion. Cua Lo town is the most affected by the saltwater intrusion, typically with land for cultivation of perennial trees (BHK), paddy land (LUC, LUK), land for production forests (RST), and land for aquaculture (TSL) are at high risk from the base (with more than 90 % of the total land area).
Bit error rate of DCO-OFDM system over an indoor diffuse link
Authors: Dang Khoa Le , Huynh Anh Quoc , Nguyen Phuong Huu , Nguyen Linh Vu , Ochi Hiroshi
Published: September 2018

The technique named DC biased orthogonal frequency division multiplexing (DCO-OFDM) is the most popular method in optical wireless communication system. In this article, we describe for the first time an exact numerical computation for the bit error rate (BER) of DCOOFDM over an indoor diffuse link. The simulation model is also provided, and simulation results showed a good agreement with theoretical analysis.
Cost and benefit analysis of maintaining Delonix regia trees on Nguyễn Văn Linh street in Ho Chi Minh City
Authors: Nguyen Thao Thi Phuong , Phan Kha Thi Ngoc
Published: September 2018

Street trees play the important roles for the natural environment, and bring a lot of benefits to people in urban areas, especially at Ho Chi Minh City - an area with the fastest urbanisation and industrializationin Vietnam. However, the area of the street trees is now decreasing considerably due to the urban planning, removal and replacement. A study on cost and benefit analysis of maintaining street trees was conducted. The study was conducted at Binh Chanh area by applying a cost-benefit analysis of 79 Delonix regia trees for 33 years, from 2015 to 2047. The results of the study showed that the benefits and costs of the project were 965,219,953,929 VND and 1,631,126,904 VND, respectively. Therefore the project is not only economically feasible with a net profit of VND 963,588,827,025 but also contributes to reducing the environmental pollution of the city with a value of 29,249,089,513 VND per year
Enhancing the quality of interpretation magnetic data at low latitudes
Authors: Nguyen Hai Hong , Nhan Nhan Thanh , Dang Liet Van , Nguyen Thu Ngoc
Published: September 2018

Magnetic anomalies are antisymmetrical and often skewed to the location of the sources, because both of the magnetization and ambient field are not directed vertically, so it’s difficult to interpret. For reducing the magnetic anomaly to a symmetrical one – this located on the source of the anomaly – people often use the reduction to the pole (RTP) where the magnetization and ambient field are both directed vertically. However, at low latitudes (an absolute inclination less than 16o30’), the amplitude spectrum of the RTP’s operator was amplified at higher frequencies (short wavelengths) can form a narrow pie-shaped; so it produces artifacts elongated along the direction of the magnetic declination. Therefore, many methods of RTP at low latitudes are given to solve this problem, but most of them are not efficiency. In this paper, we performed enhancing the quality of interpretation of magnetic data at low latitudes by some RTP methods for magnetic data at low latitudes and the analytic signal method using gradient operator and Hilbert transform. This method is applied to a model and to a real magnetic anomaly to find out the best method. Then this method was applied to enhance the quality of magnetic data interpretation in the Southern Vietnam. The result showed that the analytic signal method using Hilbert transform allowed enhancing the quality of interpretatio of magnetic data n at low latitudes is the best.
Evaluation and comparison of dose distributions for nasopharyngeal carcinoma patients treated by Jaws-Only IMRT technique and by 3D-CRT technique at Dong Nai General Hospital
Authors: Duong Tai Thanh , Nguyen Son Dong , Truong Loan Thi Hong , Nguyen Trang Thi Hong
Published: September 2018

The goal of radiation therapy is twofold: maximize the possibility of destroy malignant cells while minimizing the damage to healthy tissue. The introduction of intensity modulated radiation therapy (IMRT) technique has brought improvements in this goal. Multi-leaf collimator (MLC) is a useful tool for IMRT. However, the use of MLC is not necessarily mandatory. The Panther Treatment Planning System version 4.6, Prowess Inc., enables the implementation of this technique for accelerator without MLC (the socalled Jaws-Only IMRT technique). This study aims to evaluate the results of application of Jaws-only IMRT technique for nasopharyngeal carcinoma patients at Dong Nai general hospital. Twenty five patients were randomly selected for this study. For each patient, two plans were generated: 3D-CRT (Three-Dimensional Radiation Treatment) and JO-IMRT. The dose distributions, dose-volume histograms (DVH), conformity indexes (COIN), homogeneity indexes (HI) were used to compare between these two plans and find out the best plan. Pretreatment verifications were performed for all patients' plans using ion chamber (Farmer Type Chamber FC65-P, IBA), detector array (MapCHECK2, Sun Nuclear Corporation and Octavius 4D 1500, PTW). The average deviation between measurement and calculation for point dose was 2.3±1.1 %, within limit dose constraint. For detector array measurements, the gamma index with 3 % dose difference and 3 mm was higher than 95 %. The results showed that the JO-IMRT technique had generated better dose distribution in the target volume and reduced dose to healthy tissues compared to 3D-CRT.
Galactose biosensor based on ZnO nano material
Authors: La Ha Phan Phuong , Nguyen Hien Thi Thu , Tran Trung Quang
Published: September 2018

ZnO nanomaterial is a n-type semiconductor material and exits in a variety of one-dimensional nanostructures such as: nanorods, nanotubes, nanowalls, nanowires, ect… [3]. They have potential applications in making devices such as: light emiting diodes, optical waveguides, nanolaser, gas sensor, biosensor. Due to the high surface area to volume ratios, nontoxicity, chemical stability, biocompatibility, the high isoelectric point (IEP: 9.5), ect…; ZnO nanorods were largely used for biosensor. In this work, we developed enzyme electrode biosensor based on ZnO nanorods to test galactose solution by immobilizing galactose oxidase on ZnO nanorods grown on FTO substrate. The result showed that the proposed biosensor had the linear detection range from 40 to 230 mM galactose solution.
Preliminary summary of the composition of Bivalvia species in the Tra Khuc river, Quang Ngai province
Authors: Vu Anh Thi Phuong , Ngo Nam Xuan
Published: September 2018

Our survey was conducted from 01/2016– 10/2016 on bivalve species in the Tra Khuc river, Quang Ngai province. Through the results of analysis and the collected samples, there were 11 species belonging to 5 genera of Bivalve class include 4 families: Corbiculidae, Amblemidae, Unionidae, Mytilidae. Among them, the most diverse family is Corbiculidae with 7 species, Unionidae with 2 species (reaching 18.2 %) of Nodularia and Lanceolaria. The Amblemidae has 1 species belonging to 1 genus Oxynaia (reaching 9.1 %), the family Glaucomyidae has 1 species belonging to the genus Glaucomya (reaching 9.1 %).
Preparation of N-TiO2 nanomaterial and evaluation of its photocatalytic activity under visible light
Authors: Nguyen Cam Thi Dieu , Mai Tung Hung Thanh
Published: September 2018

In this study, nitrogen was used as a dopant to defect into the TiO2 lattice making contributions to the visible light absorption of nitrogen-doped TiO2. N-TiO2 material was prepared from K2TiF6 and NH3 as precursors. The N-TiO2 photocatalyst was prepared under the condition of 1 M NH3 solution, 14 % N/TiO2 mass ratio and the calcination temperature of TiO(OH)2 was 600 oC for 5 hours. The obtained results indicated that the simultaneous existence of both anatase and rutile phase of pattern of N-TiO2 and the average particle size was approximately 30 nm. Modification of titania with nitrogen significantly changed the light absorption ability of the catalyst. The UV-vis spectrum of N-TiO2 showed the absorption maximum at 400 nm with band gap 2.7 eV. The results of photocatalytic experiment proved that, the N-TiO2 exhibited the photocatalytic activity for degradation of methylene blue even under visible light better than that of TiO2.
Dirençliliğin Temeli
Authors: KUNDAK Seda
Published: September 2018

The
concept of resilience has been described in different ways since 1970s once
mentioning in ecology and going through conceptual framework in disaster field.
Each new definition makes the meaning broader so that the point we have reached
today, resilience has a comprehensive meaning but less quantifiable
(performance measures are defined by Bruneau et al, 2003). On the other hand as
Rose (2007) underlined, the term of “resilience
is in danger of becoming a vacuous buzzword from overuse and ambiguity”
such as the term of “sustainability” in 1990s.
Türkiye’de Uygulanan Afet Yönetimi Politikalarının İncelenmesi: Yasal Düzenlemeler ve DASK
Authors: AZİMLİ ÇİLİNGİR Gülcan
Published: September 2018

Bu çalışmada, ülkemizde
uygulanan afet yönetimi politikaları mevcut yasal düzenlemeler ele alınarak
incelenecek; deprem nedeniyle maddi zarara uğrayanlar için teselli niteliğinde
olacak maddi desteğin kısa sürede sağlanabilmesi amacıyla ortaya çıkan DASK’ın
özellikleri ele alınacaktır.

Türkiye’de afet yönetimi
örgütlenmesine ilişkin yasal düzenlemeler, daha önceleri meydana gelen her doğa
olayından sonra, o olaya ilişkin özel bir kanunun çıkarılmasıyla gelişmiştir.
Ancak, yasal düzenlemeler açısından, Türkiye’de afet yönetimi ve koordinasyonu
alanında dönüm noktası 1999 Marmara Depremi olmuştur. Büyük can kaybına ve
geniş çaplı hasara neden olan bu deprem, ülkemizdeki afet yönetimi sisteminin
yetersizliklerini ve dünyada gelişen afet yönetimi anlayışına uygun yeni
politikaların geliştirilmesi zorunluluğunu ortaya koymuştur. Marmara depreminin
hemen ardından, bölgede normal yaşama dönülebilmesi ve gereken yasal önlemlerin
ivedilikle alınabilmesi amacıyla, 4452 Sayılı “Doğal Afetlere Karşı Alınacak
Önlemler ve Doğal Afetler Nedeniyle Doğan Zararların Giderilmesi İçin Yapılacak
Düzenlemeler Hakkında Yetki Kanunu” ile hemen ardından çok sayıda kanun, KHK,
tüzük ve yönetmelik çıkarılmıştır. Yetki Kanunu’na dayanılarak hazırlanan 587
Sayılı “Zorunlu Deprem Sigortası’na Dair KHK” yürürlüğe girmiştir. Söz konusu
KHK ile kapsamdaki konutlar için ZDS yapmak üzere Doğal Afet Sigortaları Kurumu
(DASK) kurulmuştur.
Designing of a reversible fault tolerant booth multiplier
Authors: Rahman Md M , Hossain Md M , Jamal Lafifa , Nowrin S
Published: September 2018

Conventional logic dissipates more power by losing bits of information whereas reversibility recovers bit loss from the unique input-output mapping. This paper presents the design of a reversible fault tolerant booth multiplier which can multiply both signed and unsigned numbers. The proposed circuit tolerant designed using only fault tolerant reversible gates. Thus the entire scheme inherently becomes fault tolerant. Several theorems on the numbers of gates, garbage outputs, quantum cost of the proposed design have been presented to show the efficiency of the design. The result analysis shows that the proposed design is optimized in terms of all cost parameters. The simulation of the proposed circuit verifies the correctness of the circuit.Bangladesh J. Sci. Ind. Res.53(3), 199-204, 2018
Light weight concrete from rice husk ash and glass powder
Authors: Rahman AKML , Barai A , Sarker A , Moniruzzaman M
Published: September 2018

Light weight concrete (LWC) found very similar properties and constructability with respect to normal concrete (NC). LWC was prepared using red clay (RC), sodium lauryl sulphate (SLS) and borax with the addition of waste materials like rice husk ash (RHA) and glass powder (GP) in aggregate composition. The compressive strength of NC and LWC found almost similar for seven, fourteen and twenty eight days with the inclusion of RHA and GP as the partial replacement of light weight aggregate in composition. Apparent porosity (AP) of LWC found slightly higher than the NC but the bulk density (BD) is about 13% lower than the NC. SLS (10% of water solution) was used as foaming agent. Borax (10% of water solution) might effect on hydration rate and temperature. The partial incorporation of GP and RHA in LWC lessen the thermal conductivity as compared to NC.Bangladesh J. Sci. Ind. Res.53(3), 225-232, 2018
Effect of different irrigation levels on the performance of wheat
Authors: Islam ST , Haque MZ , Hasan MM , Khan ABMMM , Shanta UK
Published: September 2018

An experiment was conducted at the research field of the Department of Agricultural Botany, Patuakhali Science and Technology University, Patuakhali under the Agro-ecological zone-13 (AEZ-13) during the period from November 2012 to February 2013. The aim of the study was to identify the most effective irrigation level for obtaining the better growth and higher yield performance of BARI Gom-25 that are suitable to cultivate under  coastal region of Patuakhali, Bangladesh. So, the present study was consists of five irrigations levels including control viz. control or no irrigation (T0), one irrigation at 25 DAS (T1), two irrigations at 25 and 40 DAS (T2), three irrigations at 25, 40 and 55 DAS (T3)  and four irrigations at 25, 40, 55 and 70 DAS (T4). The seeds of BARI Gom-25 were collected from the BARI, Joydebpur, Gazipur on 22 November, 2012. The experiment was laid out in completely randomized block design (RCBD) with four replications and analysis was done by the MSTAT-C package program where means were separated by DMRT at 5% level of probability. Data were recorded on various growth and yield attributing traits. The plot size was 5 m2 (2.5 × 2.0 m) where row to row and seed to seed distances were 20 and 10 cm respectively. Data were collected on various morpho-physiological growth, yield and yield attributing traits. Results obtained from the present study, whole characters of the study were significant at 5% by the moisture (irrigation) levels where three irrigations given at 25, 40 and 55 DAS had most effective than that of other moisture levels and no irrigation. From the results investigation, it was found that the tallest plant (76.86 cm), maximum requiring days to anthesis (61.00 days), maturity (109.0 days) and maximum number of effective tillers (5.00 hill-1),the highest grain growth (3.11g at 36 DAA) and grains (44.00 spike-1) were obtained with three irrigation (T3) levels. Similarly, T3 further showed the greater performance on spike length (17.28 cm), 1000-seed weight (50.16 g), grain (4.16 t ha-1), straw (5.89 t ha-1) and biological yield (10.05 t ha-1) as well as the higher harvest index (41.39%). Investigated above whole characters were produced lower performances under no moisture (irrigation) treatments. These results indicated that irrigation at three times (T3) would be most advantageous irrigation levels for wheat production under the studied non saline ecosystem of coastal region.Progressive Agriculture 29 (2): 99-106, 2018
Development of Maize-T. Aus-T. Aman cropping pattern against Maize-Fallow-T. Aman rice
Authors: Khatun MUS , Laily UK , Alam MAU , Islam MK , Anwar MM , Talukder MAH
Published: September 2018

The field experiment was conducted at MLT site Pirganj, Rangpur and Hatibandha’ Lalmonirhat for two consecutive years 2015-16 and 2016-17 to introduce T. Aus in the fallow period and to study the comparative agronomic performance and economic return of two cropping sequences (viz. improved cropping pattern; Maize -T. Aus - T. Aman rice and existing cropping pattern; Maize-Fallow-T. Aman rice) for increasing cropping intensity, productivity and land use efficiency. The experiment was laid out in randomized complete block design with six dispersed replications. Two years mean data showed that the improved management practices for the pattern provided significantly higher yield in improved pattern. Higher rice equivalent yield (REY) of cropping system (mean value 17.34 t ha-1) was recorded with the improved pattern over existing pattern at MLT site Pirganj. REY increased 4.60 t ha-1 by inclusion of T. Aus with improved production technologies for the component crops. Similar results were also found in Hatibandha. The gross return of the improved pattern was BDT 346764 ha-1 which was more than 33.56% higher than farmers’ pattern of BDT 259640 ha-1 at MLT site Pirganj and in Hatibandha gross return of the improved pattern was BDT 342800 ha-1 which was more than 27.77% higher than farmers’ pattern of BDT 268300 ha-1. The gross margin was higher in improved cropping pattern in both locations than existing pattern due to addition of T. Aus.Progressive Agriculture 29 (2): 107-116, 2018