scholarly journals RANCANG DESAIN ALAT PENGAYAK MODIFIED CASSAVA FLOUR (MOCAF) BERDASARKAN ANALISIS KEBUTUHAN, MORFOLOGI DAN TEKNIK

2021 ◽  
Vol 10 (1) ◽  
pp. 73
Author(s):  
Slamet Sulistiadi ◽  
Fenny Aprilliani ◽  
Anri Kurniawan
Keyword(s):  
Design Method ◽  
Production Capacity ◽  
Mesh Size ◽  
Design Concept ◽  
National Standard ◽  
Cassava Flour ◽  
Design Requirements ◽  
Analysis Design ◽  
French Design ◽  
Small Industries

Modified Cassava Flour (MOCAF) which has been produced by small industries has a particle size that is not yet the Indonesian National Standard (SNI), so the quality needs to be improved using a sieving machine. The objectives of this study are 1) to analyze the design requirements of the sieving machine 2) to determine the design concept 3) to analyze the technique 4) to design the sieving device in the engineering drawing. The method used in this research is observation, interview and French design method. Based on the results of the needs analysis, it was found that the design concept of the MOCAF sieve tool that uses an electric motor, is easy to operate, is in accordance with the production capacity, has an SNI size mesh and the material used is affordable. The results of the morphological analysis show that the design concept that can be developed is the design concept 1. The results of the technical analysis show that the linear velocity of the belt is 5.58 m / s and the tensile stress at T1 is 0.23 MPa. The dimensions obtained based on the design results are 5 cm pulley length, 99 x 59 x 10 cm mesh dimension, 100 mesh size and 108 x 80 x 95 cm machine frame dimensions. Keywords: analysis, design, MOCAF, morphology, sieving 

AN INDEPENDENT ACTIVE BALANCER FOR PLANAR MECHANISMS

2007 ◽  
Vol 31 (2) ◽  
pp. 167-190 ◽  
Author(s):  
Zhang Ying ◽  
Yao Yan-An ◽  
Cha Jian-Zhong
Keyword(s):  
Working Conditions ◽  
Design Method ◽  
Design Procedure ◽  
Vibration Absorber ◽  
Planar Mechanisms ◽  
Dynamic Balancing ◽  
Joint Coupling ◽  
Design Requirements ◽  
Novel Concept ◽  
Two Degree Of Freedom

This paper proposed a novel concept of active balancer for dynamic balancing of planar mechanisms. Somewhat similar to a vibration absorber, the active balancer is designed as an independent device, which is placed outside of the mechanism to be balanced and can be installed easily. It consists of a two degree-of-freedom (DOF) linkage with two input shafts, one of which is connected to the output shaft of the mechanism to be balanced by a joint coupling, and the other one is driven by a controllable motor. Flexible dynamic balancing adapted to different working conditions can be achieved by varying speed trajectories of the control motor actively. A design method is developed for selecting suitable speed trajectories and link parameters of the two DOF linkage of the balancer to meet various design requirements and constraints. Numerical examples are given to demonstrate the design procedure and to verify the feasibility of the proposed concept.

Research on the Conformal Phased-Array Antenna

2014 ◽  
Vol 685 ◽  
pp. 324-327
Author(s):  
Shuang Zhao ◽  
Yu Bo Yue
Keyword(s):  
Mathematical Model ◽  
Antenna Array ◽  
Phased Array ◽  
Design Method ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Conformal Antenna ◽  
Conformal Array ◽  
Design Requirements ◽  
The Mathematical Model

The mathematical model of conformal antenna array is the premise and basis of the conformal array antenna signal processing. Based on the analysis of the antenna array, a design method for adjusting the direction of the conformal array antenna is proposed. Through simulation, the pattern of antenna meets the actual needs of the project and it reaches pre design requirements.

Durability design of composite bridges with given life in seasonal freezing region

2021 ◽  
Author(s):  
Xuefei Shi ◽  
Qi Xu
Keyword(s):  
Service Life ◽  
Life Cycle Cost ◽  
Mechanical Performance ◽  
Design Method ◽  
Protective Layer ◽  
Highway Bridges ◽  
Seasonal Freezing ◽  
Durability Design ◽  
Composite Bridges ◽  
Design Requirements

<p>Steel-concrete composite bridges are currently widely used in highway bridges in China. To reduce durability problems in seasonal freezing region, a design method with given service life is used. The service life is given on the basis of the environment condition and design requirements; then the structural design and safety analysis are carried out, and the durability design and analysis of the structural components are conducted. With the consideration of the mechanical performance, construction convenience and life-cycle cost, the structural scheme for bridges using twin-I girders, cross beams and precast full-width deck is recommended. Weather resistant steel is recommended to be used in nonmarine seasonal freezing regions with stabilization treatment, waterproof and drainage design, local anti-corrosion coating. Finally, a design process considering material, protective layer thickness and construction control is proposed to improve concrete deck durability.</p>

scholarly journals Laju Pertumbuhan Rumput Laut Gracilaria sp Melalui Budidaya IMTA (Integrated Multi Trophic Aquaculture) di Pantai Geger, Nusa Dua, Kabupaten Badung, Bali

2017 ◽  
Vol 4 (2) ◽  
pp. 191
Author(s):  
Kadek Yudiastuti ◽  
I Gusti Bagus Sila Dharma ◽  
Ni Luh Putu Ria Puspitha
Keyword(s):  
Water Quality ◽  
Design Method ◽  
Salt Water ◽  
Mesh Size ◽  
General Characteristic ◽  
Quality Parameters ◽  
Seaweed Cultivation ◽  
Randomized Design ◽  
Physical And Chemical ◽  
Chemical Water

Gracilaria sp is red alga which belong to class rhodophyceae. It can grow in shallow salt water with a general characteristic is having a cylindrical and branched thallus form. Seaweed cultivation can be performed through IMTA (Integrated Multi Trophic Aquaculture) method. The basic principle of cultivation through the IMTA method is utilizing service of the low thropic level species in marine ecosystems, such as shells and seaweed.  This method is believed to be able to overcome the environmental problems caused by cultivation activities, such as feces and uneaten feed. This research was perfomed 45 days, from February 25 to April 11, 2017. It was held at Geger Beach, Nusa Dua, Badung Regency, Bali, using a complete randomized design method that consist of three treatments and three repetition for each treatment. Treatment control (T1) consisted of 10 bunches of seaweed 100 grams without the abalone, treatement 2 (T2) consisted of 10 bunches of seaweed 100 grams and 20 abalones and treatement 3 (T3) consisted of 10 bunches of seaweed 100 grams and 40 abalones. The result showed that specific growth rate in Gracilaria sp.  was highest in treatment T1, compared to treatment T2 and T3. This was caused by the cage construction of abalone amd the present of small mesh size net to cover the seaweed  planting, which made the growth was not optimal.  However, the use of a nets system in seaweed cultivation could minimize the loss of thallus. It was proved by the survival rate of seaweed in first, second and third, that is averagely high, ranging from 90% to 100%. Physical and chemical water quality parameters are also measured, and It showed that the water quality was suitable for the cultivation of both, seaweed and abalone.

scholarly journals Structure design and reliability analysis of Al-Ti lugs

2021 ◽  
Vol 39 (1) ◽  
pp. 1-8
Author(s):  
Yunwen Feng ◽  
Jiale Zhang ◽  
Xiaofeng Xue ◽  
Xiaoping Zhong ◽  
Wei Xie
Keyword(s):  
Reliability Analysis ◽  
Structural Design ◽  
Design Principle ◽  
Load Transfer ◽  
Design Method ◽  
Static Strength ◽  
Structure Design ◽  
Safety Design ◽  
Design Requirements ◽  
Metal Materials

Aircraft lug joint is the key part of load transfer. In order to improve the safety of lug joint, on the premise of meeting the design requirements of static strength and fatigue, the composite connection lug structure design technology of different metal materials is proposed in this paper. Firstly, the damage safety design and life reliability analysis of the lug structure are studied theoretically. Secondly, based on the concept of damage safety design and the design principle of deformation coordination, the design method of composite connection lug with deformation coordination is proposed, and the thickness ratio of single ear is 0.8:1:0.8. Finally, the reliability of the composite lug is analyzed. The results show that the structural design scheme of aluminum-titanium composite ear piece can meet the requirements of static strength and damage tolerance, and compared with the conventional ear structure, the failure probability of structure mission life is greatly reduced when the weight of the composite connection lug is only increased by 4.9%. The proposed method can effectively guide the structural design of composite ear piece.

scholarly journals HOTEL RESORT DI TELAGA SARANGAN

Arsitektura ◽  
2017 ◽  
Vol 14 (1) ◽  
Author(s):  
Dewi Saraswati ◽  
Ahmad Farkhan ◽  
Amin Sumadyo
Keyword(s):  
Architectural Design ◽  
Negative Impact ◽  
Design Method ◽  
Building Design ◽  
Problem Formulation ◽  
Design Concept ◽  
Preliminary Design ◽  
Literature Study ◽  
Initial Idea ◽  
Resort Hotel

<em>The design of Sarangan Lake resort done by the needs of tourist on its area, unfullfield of tourist needs on accommodation facilities, increasing number of uncare building towards negative impact to the environment, so the purpose from this design is to get a building design that could provide accommodation facilities to the tourist of Sarangan Lake, with the design that concern about environment. The design issue is how ecological architect can be applied into design of Sarangan Lake resort. Design method is using architectural design, started from initial idea, preliminary understanding of architecture about the planned object, research and problem formulation, literature study as substantial reference, data analysis and information, analysis of general and specific approach towards designed object and formulation of design concept, analysis of design concept approach which more specific about the to-be-designed object, and architectural design transformation and preliminary design as well. The result is a design concept of resort hotel facilities as lodging accommodations by applying the characteristic of the ecological architect to the building design.</em>

scholarly journals Perancangan Sistem Informasi Impor & Ekspor (Sieb) Berbasis Web pada PT.Windu Eka

2014 ◽  
Vol 5 (2) ◽  
pp. 661
Author(s):  
Novan Zulkarnain
Keyword(s):  
Information System ◽  
Design Method ◽  
System Development ◽  
Raw Material ◽  
State Agency ◽  
Web Based ◽  
Revenue Sources ◽  
Development Life Cycle ◽  
Analysis Design ◽  
Design And Testing

Exports and imports are driving the nation's economy and state revenue sources. Customs as a state agency is assigned to manage the country's income. Customs and its staff are still experiencing difficulties in reporting receipt of export and import of plant or company. One of the policy is issued, each factory or company shall make the information system to determine information about the export of finished goods and raw material imports. The problem is the lack of standardization in the information that must be made by the manufacturer or company. The problem is the lack of standardization in the information that must be made by the manufacturer or company. This study makes the design of information systems based on web-based exports and imports that can be used by all factories or companies in Indonesia, particularly in PT.Windu Eka. The design method used is the SDLC (System Development Life Cycle) Analysis, Design and Testing Prototype. This information system consists of web-based software with PHP programming and MySQL database that aims to provide information online, so the reports more accessible and faster made to be reported to Customs.

A Research of Ecological Farmhouse Design Based on the Sustainable Development Needs

2019 ◽  
pp. 48-68
Author(s):  
Jiangyan Lu ◽  
Yushuai Lang
Keyword(s):  
Sustainable Development ◽  
Rural Areas ◽  
Design Concept ◽  
Rural Life ◽  
Ecological Design ◽  
Design Practice ◽  
Local Conditions ◽  
The Sustainable Development ◽  
Design Requirements

To summarize the problems and needs of the current rural life, identify the pathway that suits the sustainable development of rural areas, and propose the design concept and method that meet the current rural ecological design requirements. Use the organized research approaches. This chapter makes a case study of Nanma Village, provides the theoretical and design practice reference for the rural sustainable development in China, and establishes the knowledge and methodology system that meets the requirements of rural sustainable development. This chapter proposes the design concept and method in line with the current requirements of rural ecological design, suggests that the current village design should be adapted to “local conditions,” and indicates that the harmonious development between human and environment will be a new possible direction for the rural sustainable development and design in future.

Design and Fabrication of an Affordable Transfemoral Prosthetic Leg

2016 ◽  
Vol 842 ◽  
pp. 435-444 ◽  
Author(s):  
Emilio O. Bachtiar ◽  
Tatacipta Dirgantara ◽  
Sandro Mihradi ◽  
Andi Isra Mahyuddin
Keyword(s):  
Optimal Design ◽  
Design Method ◽  
Body Part ◽  
Knee Joints ◽  
Prosthetic Limbs ◽  
Industry Standards ◽  
Final Design ◽  
Normal Human ◽  
Design Requirements ◽  
Analysis System

An invalid is a person with physical or mental abnormalities which hinders their ability of doing normal human activities. One of the aforementioned abnormalities is the loss or malfunction of a body part or organ, such as the human leg. Problems brought about by this disability could be alleviated by the use of prosthetic limbs to restore normal bodily functions [1]. While there are many needs for leg prosthetics in Indonesia, the price of commercially available prosthetic is prohibitively high for most amputees. The current available affordable prosthetics are very basic and employ monocentric knee joints. Here an attempt is made towards acquiring an optimal design of an affordable prosthetic leg using previously developed four-bar knee joint [2,3]. The design is carried out by implementing a systematic design method to arrive at an affordable, yet ones with better performances. The procedure involves a rubric and analyzing various alternatives to arrive at an optimal design conclusion. The evaluation objective is to maximize the performance of the leg and knee prosthetics through an extensive analysis with considerations from various stakeholders, including the potential users, fabricator, and hospitals in Indonesia [4]. The final design of the leg consists of a composite socket, an aluminum pylon, and a solid-ankle cushioned-heel foot design. Its components are modular and compatible with prosthetic industry standards. The knee is made of a combination of polymers and stainless steel and employs a polycentric mechanism in order to satisfy design requirements while keeping costs low [4,5]. The leg and knee were then fabricated according to the analysis results. The total cost of fabrication is approximately 5.5 million IDR, significantly cheaper than commercial prosthetics. The prototype is then tested and examined using a gait analysis system previously developed at Institut Teknologi Bandung by the Biomechanics Research Team [6]. The results show satisfactory performance, albeit with a host of potential improvements.

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