Abstract

Mobile Robot Development with Teleprocessing

Unmanned vehicle, in mobile robot manifestation, is widely used in monitoring and exploration purpose. Also robotics is widely developed field that grow in computer science trend so that it needs high level data processing (many data and fast processing). Generally microcontroller has not enough memory and MIPS (million instructions per second) to perform high level data processing, but a computer is so weight to be embedded into small robot. Therefore, tele-processing robot has been developed in this research; robot only process motoric motion while data processing is done in separated computer.

Developed robot system consist of (i) host computer with interface hardware and software to the RF transmitter, and (ii) the robot, it consist of body that capable to crossing the rough surface, RF receiver, DC motor controller, power supply, and transmitter wireless camera.

Testing had been done to obtain information about robot’s performance and to test tele-processing ability. Robot can be controlled up to 50 m in open space, able to ascend diagonal plane up to 20° in elevation and stair-case up to 3 cm in height. Program base on image processing for black line follower robot and red ball follower robot had been made to test the tele-processing ability. Robot follows black line and red ball successfully with other four colored balls in background.

Keywords : mobile robot, telemetry, image processing.

By : Ihwanulhasan B Adi
10205057

Space explorations

Earth is the planet that can be occupied by human life. Outside of the earth is an empty space that consist a lot of space things such as stars, asteroid, moon, planet, etc. Also we can get a lot of knowledge by studying the space. In order to explore the space and using it for human needs, people must improve their knowledge about the universe and do some research in astronomical science about. Space exploration can give us knowledge and benefit because people can study various things such as: the beginning of universe, galaxies shapes, weather prediction, etc.

Astronomy is important for the earth and also all of organisms stay inside. That science can calculate space things movement and dynamics, can also define position that things to time. Space object like asteroid or meteor, sometimes can give us threat, because those objects often leave their orbit and than hitting the earth. It can be natural disaster in few regions of worlds but give large affect to human life.

Satellite is one of result and also tools by space explorations. Several devices has been located in above the ground, flying in gravitationless altitude. Satellite is useful for various astronomical needs, because study and research about space and also exploring the space is using astronomy. Beside that purpose, satellite development is important in weather monitoring and also earth mapping. Although consume large cost in develop one satellite and than launching it.

Satellite existence for the owner give many benefit such as : foreign object monitoring and interpolating, weather prediction, proving some universe theory, etc. The science and technology development in one country is indicate by its level in exploring the space. Sometimes space exploration product give more advantages than its building cost.

Abstract

Enriching Uranium Using Gasseous Diffusion Method

Gasseus Diffusion is a method to enrich percent composition of 235-U from 0,71% in natural uranium to be 3 – 5%. In this method, gaseous uranium hexafluoride is forced through semi-permeable membranes. This produces a slight separation between the molecules containing uranium-235 and uranium-238. By use of a large cascade of many stages, high separations can be achieved. It was the first economic enrichment process to be successfully developed.This process is based on the principle that in a closed box, all molecules have the same energy; therefore the lighter molecules, on average, travel faster than the heavier molecules. As a result, the lighter molecules strike the walls of a container more frequently than their heavier counterparts. If a portion of the container consists of a small hole large enough to permit the passage of individual gas molecules, but not so large that a mass flow-through of the gas can occur, then more light molecules than heavy molecules will pass out of the container, since rate of effusion (diffusion to outside the box) is proportional to the inverse square of the mass. The gas leaving the container is somewhat enriched in the lighter molecules, while the residual gas is somewhat depleted.

Task 6 : Parents' Expectations about Child Rearing after Divorce: Does Anticipating Difficulty Deter Divorce?

ABSTRACT:

Divorce is costly for parents because of the challenges of meeting children’s economic and socio-emotional needs after separation. Using the National Survey of Families and Households (N = 1,935), we investigate whether expected economic and parenting costs deter divorce. Mothers expect higher economic costs than fathers, whereas fathers expect more parenting difficulties. The majority of mothers and fathers, however, expect high economic and parenting costs. In a large minority of families mothers and fathers differ in their expected costs. Furthermore, only parenting costs deter divorce, not economic costs, and mothers’ parenting concerns are a greater barrier to divorce than fathers’ concerns when parents disagree. Finally, expected parenting costs are more of a barrier to divorce for unhappy than happy couples.

Task 5

Heart Disease

Heart disease is a hypernym for many kind of different types diseases that affect the heart. Some types of common heart disease are coronary heart disease, cardiovascular disease, heart failure, hypertensive heart disease, inflammatory heart disease, stroke, and congenital heart disease. (anonym1,2008). But generally people just know the stroke as heart disease.

Heart disease is a disease that causing death for both men and women all over the world. The risk factor that contribute to this disease is unhealthy lifestyle, like workaholic, smoking both active or passive, consuming high cholesterol food, drinking alcohol, stress, less of exercise

Now a days, heart disease is the leading cause of death in western society. Like we can see in America, American heart association estimated that 80,700,000 American adults which means one in three have one or more types of cardiovascular disease, 16,000,000 (about 8,700,000 men and 7,300,000 women) Among adults age 20 and older, get the coronary heart disease, and 5,800,000 (about 2,300,000 males and 3,400,000 females) among adults age 20 and older, are stroke. (anonym2, 2008). These all happened because the lifestyle of the western society is supporting the risk factor of heart disease.

Anonym1, 2008, Heart Disease.in Web: http://en.wikipedia.org/wiki/Heart_disease
Anonym2, 2008, Statistics. in Web: http://www.americanheart.org/downloadable/heart/1198257493273HS_Stats%202008.pdf

Task: Abstract

Identify Fruit Fly on Hot Pepper

Fruit fly (Diptera: Tephritidae) especially Bactrocera spp. was a serious insect pest for many fruits and vegetables in Indonesia. Yield losses due to this pest was about 70 percent. The objective of this research was to identify of Bactrocera spp. species from hot pepper. This experiment was conducted at Lembang, West Java and continued in the laboratory. Randomized Completely Block Design in Factorial was used in this experiment. Manual identification key Cabikey (White and Hancock 1997) used to identify the sample.

Keywords: fruit fly, pest, species identification, hot pepper, Bactrocera

Mutia Ardelia (10604054)

abstract

Bacteria Antiseptic and desinfectant effectivities test

Most of microorganism which patogen has capability to infect and destroy its cell host, one of those is bacteria. Biochemical agent like antiseptic and desinfectant is use for prevent bacteria development. Today there’s many kind of biochemical agent which used in our necessity, so its necessary to know the effectivities of many biochemical agent like dettol, betadine, listerin (antiseptic) and bayclin,domestos (desinfectant) to prevent the bacteria development like E. coli, S.aureus, B.cereus, dan P.aeruginosa. Antiseptic and desinfectant effectivities test is using the Kirby-bauer method which often called Disk Diffusion Susceptibility Testing.

Abstract

Indonesia sits atop one of the best geothermal heat sources on the earth. Almost 50% geothermal sources placed in Indonesia. Geothermal energy could converted into electrical energy and it can provide 27.000 MW electricity if the sources all used. But, geothermal development has been minimal caused of so many problem to build geothermal power plants. Here, we will talk about the potential of geothermal and the problem to make the power plants include internal and external problem.

task 5

NOS

NOS (Nitrogen Oxide System) is a mechanism to mix N2O with fuel in combustion chamber (http://paultan.org). NOS can provide more oxygen for yields more power.

NOS become like a fever in Indonesia after “The Fast and The Furious” released in Indonesian cinemas. NOS become trend because it can provide much power instantly. But, NOS have a weakness too. NOS can be used only for several seconds or minutes depend on the quality and specification, and also the price is still expensive.

However, if people want to install NOS, they must be considered well. Because this will be like a useless if it installed in car when used only for daily activity. NOS is useful for race car to raise its performance.

Reference:
- www.lextreme.com/turbo.html
- www.akamoto.co.uk/resource-how-nitrous-oxide-works.htm
- http://paultan.org/archives/2006/02/23/how-does-nitrous-oxide-work

Fruit Fly Pest Integrated Management

Fruit Fly Pest Integrated Management

ABSTRACT

Fruit fly (Diptera: Tephritidae) is one of the most serious pests in the world. The fruit flies of the family Tephritidae constitute a group of agricultural pests of worldwide importance, as they attack a wide range of fruits and vegetables. It causes more over 30% crops damage, because the crops become rotten and dried off rapidly.

It has four main life stages: egg, larva, pupa, and imago (adult flies). The most important for spread of fruit fly is imago (adult stage) and larva (maggot stage). Adult female injects the eggs beneath the fruit skins, when the eggs become larva it will eat entire vegetable or fruit. The life cycle becomes the basic information to determine the pest integrated management for fruit fly.

Nowadays, the biological control for fruit fly research still expand. The main purpose is for finding the most effective and safety for environment and human being. The methods are sterile adult male technique, methyl eugenol male attractant, natural enemies (parasite/ parasitoid), trap with bait in a sugar-hydrolyzed protein form.

Keyword: Fruit Fly, Life stage, biological control, methyl eugenol, parasite, parasitoid, trap.

GILANG KINASIHAN 10604052

Change of Aggression Toward Human in Cervus timorensis

ABSTRACT

The change of aggression toward human in deer / Rusa Timor (Cervus timorensis) have been studied in the Nature Reserve and Nature Recreation Park (Taman Wisata Alam) of Pananjung Pangandaran with that in Nature Reserve of Ujung Kulon, as comparison. These locations were selected due to the difference of interaction between Rusa Timor and human in each area.

The study began by observing the aggressive behavior of Rusa Timor using the scan sampling method. Focal sampling, and continuous recording sampling (focal animals-akk occurrences sampling) to determine the time and location of study. The observation was followed by the quotation of the aggression sequences and intensity. To compare the behavior , an observation about minimum-accepted distance of Rusa Timor in Nature Reserve Pananjung and Ranca Upas was carried out. The data analysis was performed in descriptive statistic and modeling.

The result showed that the aggressive behavior was performed by dominant male. Many deer species group into families around the female, with the male often becoming solitary. In Pananjung, Rusa Timor began aggressive with the alteration of feeding behavior. They come close to human, for requiring the feeding. They began eating the food of human, in the fact we know they are herbivories. They ate human’s food from the garbage. It would be found in morning day.

In contrast with Rusa Timor living in Ujung Kulon which has a minimum distance toward human, those who live in Nature Reserve and Nature Recreation Park of Pananjung has lost this distance, which means that there is a stimulus that causes the lost of fearness toward human. The stimulus is the feeding by human, which only occur in Nature Recreation. The changes of Rusa Timor’s behavior is also influenced by the supply of feed. The changes of nature forest began nature recreation also influenced Rusa Timor’s behavior. The opportunity of human to give food directly, make the opportunity of the feeding behavior’s alteration.

Cervus timorensis in Nature Reserve and Nature Recreation of Pananjung Pangandaran have experienced behavioral changes in aggression toward human caused by territority and disturbance from human. The particular stimulus which elicited aggression in the discharge of feeding by human. Therefore, we can conclude that there has been changes from intra-spesies aggression into inter-aggression.

KEYWORD: Cervus timorensis, Aggressive behavior, Pananjung Pangandaran

By: Rizky Ayu Maulani Yusuf (10604098)