PROSES PEMBUATAN CAKE MENGGUNAKAN TEPUNG KOMPOSIT TERIGU, UMBI JALAR DAN TALAS DENGAN METODE EXPERIMENTAL DESIGN

The research was aimed to formulation combination of composite flour as partly substitution of wheat flour from blend of wheat flour, sweet potato flour and taro flour in processing of cake. This research used Experimental Design Methods, a Completely Randomized Design (CRD) Non Factorial, with different level of substitution in percents, i.e :T1 = wheat flour (100%), T2 = wheat flour (75%) : sweet potato flour (25%), T3 = wheat flour (50%) : sweet potato flour (50%), T4 = wheat flour (25%) : sweet potato flour (75%), T5 = wheat flour (75%) : taro flour (25%), T6 = wheat flour (50%) : taro flour (50%), T7 = wheat flour (25%) : taro flour (75%). The parameters analysed were moisture content, ash content, protein content, fat content,carbohydrate content and hedonic value of colour, aroma, flavour and texture. The results showed were significant differences (p<0.5) difference formulation combination of composite flour with different level of substitution. The proximate composition showed that wheat flour had higher protein content (9.46%) and lower carbohydrate content (87.77%), while sweet potato flour had protein content(3.96%) and carbohydrate content (92.92%); taro flour had protein (5.62%) and carbohydrate content (92.83%). The sensory analysis of cake showed significant differences between 100% wheat flour and formulation combination of composite flour samples. It was concluded that formulation composite flour T4 into wheat flour gave the cake with the best overall quality acceptabily.

ANALISIS FAKTOR DAN USULAN PERBAIKAN KUALITAS HASIL CETAK KORAN INDUSTRI GRAFIKA

PT. X as a company engaged in the printing and publishing industry. In carrying out its business activities the company has implemented a production quality control system. Various quality control programs are carried out by the company so as to produce good products and in accordance with established quality standards. But in reality there are still products that are of poor quality. The damaged product is then rejected (separated from the product that falls into good criteria) and will be resold to other parties at a price lower than the general price. This is certainly a loss for the company because it results in a waste of production, especially if the damaged product exceeds the tolerance limit set by the company. Based on the results of the study obtained a large defect in printout Newspapers include blurred colors, not registers and cut. By using a quality analysis using a Fish Bone Diagram, the factors that generally affect print quality are human, material, method, environment and machine

PREPARASI DISPERSI ANTIBAKTERI BERBAHAN DASAR TITANIUM DIOKSIDA (TIO2) SERTA APLIKASINYA PADA KAIN DENGAN METODA DIP COATING

Cases of nosocomial infections in Indonesia are increasing every year. One of the reasons is hospital equipment that is not sterile and poorly maintained in public facilities used in hospitals such as sheets, pillowcases, blankets, curtains, towels, and patient clothes. Everything made from fabrics can be contaminated by bacteria causing infections. In this research, the preparation of antibacterial based on titanium dioxide (TiO2) and its application to the fabric using a simple methodology. Cross-linking using Maleic Acid and catalyst using sodium hypophosphite. The dip-coating method is used to coat the fabric. Then, fabric washing is carried out to see the decrease in the amount of TiO2. Plate Count Method is carried out to see the antibacterial activity on the fabric. Fabric characterization was carried out using SEM and FTIR. SEM shows that TiO2 particles distributed throughout the fabric surface. After washing 10 times, there is a reduction in the amount of TiO2 in the fabric. FTIR aims at cross-linking between TiO2 and fabric. Meanwhile, testing for antibacterial activity showed that no bacteria appeared in all samples.

KAJIAN EKSPERIMENTAL KUAT TEKAN BETON BENDA UJI SILINDER DIKEKANG DENGAN BAHAN CARBON FIBER WRAP

Changes in building functions by increasing the number of floors to the top / vertical direction or also called by increasing the number of levels will increase the burden on the pole/ column, and changes by removing one of the pillars to expand the room will add burden to the columns and beams. Impairment of concrete quality after the implementation of structural construction is also a problem that is often encountered in the implementation of construction. Beams, columns, plates are structural elements used to receive and distribute loads. Expenses that are added as a result of changes in the function of the structure, additional load on the building, or not achieving the quality of the concrete plan of the building structure. Stages of testing by forming cylindrical specimens of 15 (fifteen) pieces, with each of 5 (five) specimens carried out without using carbon fiber wrap to represent the conditions of specimens in the field which are below the standard quality plan in this study concrete quality plans carried out using a job mix formula for f'c = 30 MPa, while 10 (ten) other test specimens are carried out by confinement using fiber wrap material. Observations were made by looking at the addition of compressive strength of concrete on the given fiber wrap restraints. Other observations are made by observing the collapse pattern and the mechanism of collapse that occurs with and without the test specimen mounted in restraints. The compressive strength of concrete increased by 54% for typical restraints 1 using standard fiber direction and 23% for typical restraints 2 using the opposite direction of standard fiber. The collapse model of the Test object that is not restrained is by following the standard collapse model in SNI, while the Test object that is restrained experiences collapse after the Carbon Fiber Wrap material is torn due to the addition of compressive load on the Test Object.

PREPARASI DAN KARAKTERISASI BIOMASSA KULIT PINANG DAN TEMPURUNG KELAPA MENJADI BRIKET DENGAN MENGGUNAKAN TEPUNG TAPIOKA SEBAGAI PEREKAT

This study conducted the preparation and characterization of charcoal briquettes originating from areca nut skin biomass and coconut shell using tapioca flour as an adhesive. Stages of preparation are cleaning, carbonization, densification, and characterization. Characterize by measuring the level of water, dust, and bound carbon. The characterization results showed that the briquette's water content ranged from 4.1% - 6.9%, ash content was 2.4 - 5.8%, and carbon content was bound to 44% - 60.9%. This result is by SNI No.01-6235-2000. So it can be useful as an alternative fuel.

BENTUK PENATAAN KAWASAN DAN PERMUKIMAN KAMPUNG AUR MEDAN

The Settlement Area in Kampung Aur is a densely populated settlement located on the banks of the Deli River in Medan. Until now there has not been a more appropriate solution to the arrangement of the area and its residents although there are in several cities there have been several types of solutions to the problem of densely populated settlements ranging from forced evictions, the construction of new settlements in the form of flat / flat and village improvement programs. That said, the government began to realize that the problem could not be solved by a one-way system. There must be communication with slum dwellers. This then encourages the authors to make an arrangement of the area and its residents with an approach to the behavior of citizens and the types of settlements at this time. This study aims to produce a design of the area and settlements that can accommodate social and cultural aspects of society through the approach of environmental behavior and types of settlements. To achieve this goal, participatory observation will be carried out in every dominant community in the location. Through this observation it will be seen how the environmental settings and behavior work in Kampung Aur. Data on environmental and behavioral settings will then be processed to produce Kampung Aur design completion criteria. From this study it was found that there are two dominant tribes in Kampung Aur, namely Chinese and Minang.

POLA PERGERAKAN TRANSPORTASI PENDUDUK YANG DITIMBULKAN OLEH KAWASAN PERUMAHAN DI KOTA MEDAN

Medan City as the location chosen in this study, has an area of 265.00 km2 with a population of 2,210,624 people and is increasing every year (Badan Pusat Statistik, 2015). With the increasing population of the city increasing activity and the number of good people traveling well. The city of Medan is currently promoting quite rapid development, a development from now on with the change in New settlements in the region which were built by settlement developers who also increased transportation development. It is very interesting to discuss about regional settlements in the city of Medan, especially in terms of trip generation. The housing area that is the object of research is part of land use in the Medan city area. From the research results, the best model that can be used at this time can be applied in housing location planning, namely the linear multiple regression model on luxury housing types, namely Y1 = 3.373 + 1.569 X1 + 0.139 X4 + 0.456 X6, therefore the findings that can be found are the variables that have an impact on the trip generation from housing. The value of the variable Number of family members (X1) is equal to 1,569 X1, it can be interpreted as increasing the value of the number of people who will increase travel production by 1,569 trips / family / day. The value of the variable number of motorcycle ownership (X4) is 0.139 X4 which means increasing the number of one unit will increase travel production by 0.139 trips / family / day. The value of the variable number of families attending school (X6) is 0.456 X6 which is related to an increase of one person increasing the production of trips that is equal to 0.456 trips / family / day.

KARAKTERISASI KEAUSAN KOMPOSIT CANGKANG KEMIRI DAN TEMPURUNG KELAPA SEBAGAI BAHAN PEMBUATAN KAMPAS REM (BRAKE PAD)

The research has been conducted on the use of candlenut shells and coconut shells as composite materials in the manufacture of brake pads. The design of friction composite formulations is carried out based on four classes of friction material namely fillers, binders, reinforcing fibers and property modifiers with a fixed percentage based on weight. Comparison of the composition of Candlenut shell powder and coconut shell for each sample S-01 (35: 25) wt .-%, S-02 (30: 20) wt .-%, and S-03 (25: 15) wt. -%. From the results of data analysis, the values of water absorption for each sample were S-01 (0.00706%), S-02 (0.000496%), S-03 (0.00584%). The lowest wear test was found in the S-03 sample of 3.67 x 10-5 g / mm2.s. The SEM-EDS test results show the distribution of particles in different friction materials for each sample and show that carbon is present in approximately equal amounts in all formulations. The predominance of the presence of metals in brake linings includes: iron (Fe), magnesium (Mg), carbon (C), and aluminum (Al), silicon (Si), potassium (K)

Analisa Tikungan Terhadap Keselamatan Pengguna Jalan Raya Bandar Baru – Berastagi ( Kabupaten Deliserdang – Kabupaten Karo )

Basically the construction of a highway is the process of opening a traffic room that overcomes various geographical obstacles. In road design, the geometry of the road must be set in such a way that the road in question can provide optimal service to traffic according to its function. Roads that are used as locations are several roads located in the area of North Sumatra, Deli Serdang Regency and Karo Regency, namely Three (3) STAs, such as (STA 49 + 400 Bend Amoy I), (STA 50 + 500 Bend Amoy II), ( STA 58 + 300 Pelawi Bend). Data identification results, STA 49 + 400 Amoy I bend using spiral-spiral (SS) type, STA STA 50 + 500 Amoy II bend using spiral-spiral (SS) bend type, and STA 58 + 300 Pelawi bend using spiral bend type -spiral (SS) too. Therefore all three points of the STA must get special treatment to reduce the possibility of an accident.

KAJIAN EKSPERIMENTAL KERUNTUHAN TEKAN BENDA UJI BETON SELF COMPACTING CONCRETE

Concrete test materials received in the field were treated and tested at the age of 28 (twenty eight) days, regulated in the Indonesian National Standard for concrete with the standard number SNI 2847: 2013. In addition, the equally important standard to be observed in concrete testing, especially in construction, is the observation of the shape of the collapse of the test object, which was written in the SNI 1974: 2011 concrete regulation. This collapse model needs to be considered because it can pay attention to the possibility of errors in testing. The test object used in this study was formed using Self Compacting Concrete type concrete. This type of concrete is an innovative concrete that does not require vibration for compaction. Because this concrete can flow by itself and actually fill the formwork until it reaches full compaction. These concrete collapse models must be considered because they are very interesting to see. Researchers conducted experiments on concrete collapse models made using several variations of concrete mixtures, ranging from variations in water content (standard, -5%, -10%, + 5%, + 10%), height variation of the test object (15 cm , 12.5 cm, 10 cm, 8.5 cm, 7.5 cm), and variation in age of the plan. From the research conducted by researchers, the number of specimens carried out shows the pattern of collapse of the crack model parallel to the upright axis, then there is the model of cone and shear failure and the least is the cone and split failure model.