ANALISIS KUALITAS PASIR BESI SEBAGAI AGREGAT HALUS PADA BETON ASPAL LAPISAN A…

Mineral processing activities are activities to increase the value of minerals. One of the tools commonly used is the Sluice box by using the principle of differences in specific gravity. The applied variable becomes the benchmark for concentrate gain which is as expected. The level becomes the standard for the success of the processing carried out. Application of variable feeding time, tool sl…

PENGARUH DIMENSI DALAM PEMBUATAN AGREGAT BERBAHAN DASARFLY ASH DENGAN TEKNIK …

This study aims to analyze the influence of dimensions in the manufacture of artificial aggregates made from fly ash using heating techniques. This aggregate is made by combining several other materials through physical and mechanical processes similar to natural aggregates. In this study the materials used for the manufacture of aggregates are fly ash, clay and water. The method used is the he…

DETERMINAN OBESITAS SENTRAL PADA REMAJA DI SMA NEGERI 10 PALEMBANG

Central obesity is a condition where excess abdominal fat accumulates (a abdominal circumference of men is >90 cm and women >80 cm). Indonesia has a prevalence of central obesity at the age of ≥15 years of 31.0%, the prevalence of central obesity in the province of South Sumatra is 27.1% and Palembang City is the highest incidence of central obesity in teenagers ≥15 years number 2 in South …

ANALISIS KEKUATAN BENDING STRUKTUR SANDWICH DENGAN CORE ALUMUNIUM DAN SKIN PL…

Pemanfaatan struktur sandwich alumunium dengan lapisan skin besi telah meningkat pesat di industri Indonesia, terutama dalam manufaktur dan penelitian bahan. Material struktur sandwich menarik perhatian peneliti karena kombinasi kekuatan tinggi dan bobot yang ringan. Tujuan penelitian ini adalah merancang dan merekayasa struktur sandwich dengan core alumunium dan skin plat ASTM A36, serta menga…

FAKTOR RISIKO OBESITAS PADA REMAJA SEKOLAH DI KOTA PALEMBANG.

Background : Obesity is a condition in which there is an accumulation of excessive fat tissue in the body due to an imbalance between energy intake and energy use in an extended time. The rate of obesity in adolescents has increased 10 fold in the last 40 years. Several risk factors related to obesity include: low level of physical activity, high sedentary activity, and high consumption of fast…

PENGENDALIAN DAN PENGOBATAN OBESITAS

Edition

-

ISBN/ISSN

978-602-203-014-0

Collation

xii, 169hlm.; ilus.; 24cm

Series Title

-

Call Number

616.39 Oet p

PENGARUH PARAMETER PEMOTONGAN PADA PROSES PENGULIRAN TERHADAP GEOMETRI ULIR B…

This study aims to determine the effect of cutting parameters on screw geometry in the turning process. Data was collected using descriptive analysis techniques. The results showed that the difference in the size of the screw height which was not too significant was at a rotational speed of 100 rpm and a depth of cut of 0.2 mm with a difference of 110.38 µm, while the screw section with a spee…

PENGARUH VARIASI INHIBITOR TEH PADA BAJA ST42 DALAM LINGKUNGAN ASAM SITRAT TE…

Zat tanin merupakan salah satu jenis inhibitor yang dapat digunakan untuk menghambat laju korosi, salah satu jenis inhibitor alami yaitu teh. Inhibitor yang digunakan dalam penelitian ini ada dua jenis, yaitu teh hitam orthodox dan teh celup sari wangi dengan konsentrasi 5%. Proses penelitian dimulai dengan perlakuan panas pada baja St42 dengan suhu 750o C kemudian direndam dengan dua jenis var…

PENGARUH VARIASI KONSENTRASI EKSTRAK DAUN MANGGA MANGIFERA FOETIDA SEBAGAI GR…

Corrosion is material damage due to electrochemical reactions between the material and its environment. This study used medium carbon steel A36 as a test specimen, mango Mangifera foetida leaves as an inhibitor, and 25% NaCl solution as a corrosive medium. Quenching heat treatment is used to apply inhibitors to the test specimens. The purpose of this study was to determine the effect of varying…

PENGARUH QUENCHING TERHADAP LAJU KOROSI PADA BAJA AISI 1045 DENGAN MEDIA PEND…

Metode penelitian yang digunakan pada penelitian ini adalah metode eksperimen yang bertujuan untuk menguji pengaruh dari media pendingin Tubeless tire fluid terhadap laju korosi yang telah melalui proses quenching. Korosi adalah proses terjadinya perusakan material (khususnya logam) akibat dari faktor lingkungannya. Berdasarkan hasil pengujian selama 3 hari pada larutan korosif yaitu larutan as…

ALUMINUM-LITHIUM ALLOYS PROCESS METALLURGY, PHYSICAL METALLURGY, AND WELDING

Aluminum-Lithium Alloys Process Metallurgy, Physical Metallurgy, and Welding provides theoritical foundations of the technological processess for melting, casting, forming, heat treatment and welding of Al-Li alloys. it contains a critical survey of the research in the field and presents data on commercial AL-Li alloys, their phase composition, microstructure and heat treatment of the ingots, s…

PENGARUH VARIASI HOLDING TIME PADA PROSES NORMALIZING TERHADAP NILAI KEKERASA…

Normalizing is the process of heating steel to the austenite phase, and cooling it in open air to 27°C. Thus causing the structure in the material to change initially due to loading. In this study, st 37 steel specimens were used. The aim of this study was to observe the effect of variations in holding time in the normalizing process. The holding time used is 20 minutes, 30 minutes and 45 minu…

KETAHANAN LELAH BESI COR NODULAR DENGAN PEMBEBANAN REPEATED TORSION

Fatigue is a process of permanent progressive localized structural change in a material that occurs due to repeated stresses and strains below the acceptable stress limit for the material and at a certain point in time it will cause cracks and then fractures. thoroughly after certain fluctuations. The damage from this failure is called fatigue failure. The study was conducted using a fatigue te…

KETAHANAN LELAH BAJA KONSTRUKSI PEGAS DAUN DENGAN PEMBEBANAN REPEATED TORSION.

This study discusses the fatigue resistance of leaf spring construction steel with repeated torsion loading. In this test, the leaf spring steel is stressed repeatedly in order to get the required results. The study was conducted using a fatigue test tool with the repeated torsion method. The material being analyzed is leaf spring steel. The test was carried out using 5 variations of different …

PEMBENTUKAN MEMBRAN TIMAH DIOKSIDA (SnO2) DENGAN PENCAMPURAN POLYETHERSULFONE…

Fabrication of Polyethersulfone (PES) membrane by adding Tin Dioxide (SnO2) using the flatsheet method. In this study, the effect of the addition of SnO2 will be analyzed to determine the mechanical properties of the membrane, as well as the performance of water treatment. The PES@ SnO2 membrane was characterized by SEM and the pore size was uniform until the addition of SnO2 reduced the surfac…

ANALISIS PENINGKATAN KUALITAS PASIR BESI PADA PEMBUATAN KITOSAN MAGNETIK DALA…

Pasir besi berada pada urutan ke empat terbanyak unsur yang membentuk bumi. Penyebaran pasir besi di Indonesia terdapat di Pulau Sumatera, Jawa, dan Sulawesi. Pasir besi merupakan sumber besi yang dalam pemanfaatannya masih belum optimal khususnya di Indonesia. Namun, produksi pasir besi meningkat dari tahun ke tahun di Indonesia. Salah satu pemanfaatan pasir besi yang dilakukan pada penilitian…

Obesity Medicine: MEDICAL CLINICS OF NORTH AMERICA

Edition

-

ISBN/ISSN

978-0-323-56643-8

Collation

xix, 197 hlm.; ill.; 24cm

Series Title

-

Call Number

616.39 Obe o

ANALISIS PENINGKATAN KUALITAS PASIR BESI UNTUK BAHAN DASAR INDUSTRI MAGNET PE…

Iron sand is sand consisting of grains of sand containing magnetic elements of iron and some other minerals, so that the amount of iron content in the grains of sand is not the same. Iron sand is one of the mining materials in Indonesia which is exploited on a large scale. Iron sand is usually found in the mountains, along rivers and is mostly found on the coast. These include along the west co…

ANALISIS PENINGKATAN KUALITAS PASIR BESI UNTUK MEMENUHI BAHAN BAKU BAJA TULAN…

Iron sand is a sand deposit that contains various minerals, including the mineral hematite (Fe2O3) which is one of the materials used in the manufacture of concrete reinforcing steel. The level of Fe2O3 in iron sand used as raw material for reinforcing steel in concrete must be in accordance with the Indonesian National Standard for raw materials for making reinforcing steel, which is 60.44%. G…

POLA MAKAN DAN OBESITAS

Edition

-

ISBN/ISSN

978-979-420-850-2

Collation

xx,201hlm.: ill.; 23cm

Series Title

-

Call Number

616.39 Pol p

KARAKTERISTIK PATAH DAN KETAHANAN LELAH BESI COR MALLEABLE

Malleable cast iron is cast iron that has excellent forging properties. Malleable cast iron is the result of heat treatment of white cast iron, so that cementite is decomposed to form graphite in the form of rosettes. Making malleable cast iron has ductility properties and is able to forge excellently, so it is often used for tooling and on railway components. Testing to determine the fatigue l…

ANALISIS PENGOLAHAN PASIR BESI SEBAGAI BAHAN BAKU AGREGAT HALUS CAMPURAN ASPA…

Iron sand in Indonesia is an abundant resource but its use is still very minimal, so that iron sand is considered a natural resource that is less economical and its utilization is not optimal. While iron sand itself is in the order of the most elements forming the earth. So far, the material used as fine aggregate in flexible pavement mixtures is natural sand, which generally comes from rivers.…

Genetika Obesitas

Edition

-

ISBN/ISSN

978-602-386-170-5

Collation

xvi, 204hlm.; ilus.; 23cm

Series Title

-

Call Number

616.39 Has g

OBESITAS DIABETES MELLITUS & DISLIPEDEMIA: Konsep, Teori, Dan Penanganan Apli…

Modernisasi bukan hanya membawa berkah, tetapi juga musibah bagi manusia. Ketersediaan alat bantu elektronik, yang menyeruak hingga ke kamar tidur, telah mendatangkan "kemalasan" luar biasa yang menyebabkan otot-otot lurik termanjakan. Dibarengi kebiasaan menyantap makanaan instan, "puasa" fisik ini lama kelamaan akan menelurkan obesitas dan selanjutnya menetas sebagai penyakit degeneratif: dia…

OBESITAS TRANSLASIONAL; Aspek Klinis Dan Molekuler dari Kejadian Obesitas

Edition

1

ISBN/ISSN

978-602-386-191-0

Collation

vii, 188hlm.; ilus.; 23cm

Series Title

-

Call Number

616.39 Muh o

PENGARUH ARUS PENGELASAN TERHADAP KEKUATAN TARIK DAN LAS SMAW DENGAN ELEKTROD…

This study aims to determine the highest value in steel materials low carbon using SMAW type welding machine, using the X junction, which distinguishes the use of ampere current variations (100 A, 130 A, 160 A) used in welded joints by saw tensile test result. This research is included in the experimental method. Result this study is a comparison of tensile strength using variations of differen…

PENGARUH QUENCHING TERHADAP LAJU KOROSI PADA BAJA KARBON TINGGI

Corrosion is defined as a color change, quality degradation, destructive phenomenon of a material as a result of a chemical and electrochemical reduction-oxidation reaction between a material and various corrosive substances in its environment. The environment is one of the main factors causing corrosion. In this study, the researcher used an experimental method where the research was carried o…

PENGARUH QUENCHING DAN VARIASI SUHU TEMPERING TERHADAP SIFAT MEKANIK PADA BAJ…

This study aims to determine the effect of variations in tempering temperature on the quenching process on the hardness level of ST 37 steel. The research method used is an experimental method. Specimens with a diameter of 25 mm and a thickness of 20 mm. Researchers used the quenching method with a holding time of 10 minutes and cooling using a salt solution and variations in tempering temperat…

PENGARUH VARIASI TINGKAT KEKENTALAN MEDIA PENDINGIN OLI TERHADAP KEKERASAN BA…

Quenching merupakan salah satu proses untuk meningkatkan kualitas kekerasan produk baja khususnya pada permukaan baja, di suhu austenit. Tujuan penelitian ini untuk mengetahui apakah variasi tingkat kekentalan media pendingin oli dalam proses quenching berpengaruh terhadap nilai kekerasan pada baja aisi 1045. Proses quenching dimulai memanaskan baja aisi 1045 di suhu 820°c, kemudian di-quenchi…

PENGARUH PENGALAMAN PRAKTIK INDUSTRI DAN PRESTASI AKADEMIK TERHADAP KESIAPAN …

Penelitian ini menggunakan variabel pengalaman praktik industri (X1), prestasi akademik (X2) kesiapan kerja mahasiswa (Y), jenis penelitian asosiatif. Populasi penelitian adalah mahasiswa pendidikan teknik mesin angkatan 2019 dan 2018 berjumlah 129 mahasiswa, teknik sampling menggunakan rumus isaac and michael diperoleh 97 sampel mahasiswa. Instrumen penelitian menggunakan angket dan nilai inde…