Searching and Responding Posts Related to Torum
Being a Supporter up to Evangelist
The opposite of hater where you defend no matter what and express your feelings simply because you support Torum:
If not defending, then you attack the opposition:
Being an Objective 3rd Party
I saw many supporters giving simple statement as I showed previously but personally I do not prefer because no matter how much you support, you are not the founder nor the owner, you are you. Another reason is that fact and truth is always the winning end far in the long term. Unlike being a supporter, you must act like an emotionless robot and speak only based on either or all regarding to data, logic, your own opinion, etc.
Being a 3rd Villain
Though people did not believe everytime when I admit that I have a bad temper but they had no complains when I admit that I am sarcastic and I apologized. This is different from being a supporter who attacks nor an objective 3rd party who critisizes but more like a grey area where you either want to bare your fangs at the accuser or bare your fangs to both parties solely for yourself. Here is another thread:
I will not deny if my comment are accused of attention seeking but personally I just felt like expressing my feelings:Card
Being an Informer
PS, I apologize to the accuser reading the above harsh comments. It is just an example of how people can approach and I know that you have resolved your issue between them when I read your last comment and instead my comment to your thread is down below:Card
This is my favourite role since I like to guide people and let them think for themselves. Here you do not attack nor defend nor involve any emotions. You only provide information and nothing more. For example, below is my comment on the scam accusation:
Which Ambassadors Are Tasked For This Job?
Saya juga berada di platform lain di mana mereka tidak berada. Saya akan mencantumkannya di sini untuk mereka jika mereka ingin meluas di masa mendatang:
I am also on other platforms where they are not at. I will list them here for them if they want to expand in the future:
Back in high school and university in department of science and mathematic, it is compulsory to solve mathematical problem manually using theories through formulas. However in Engineering, it is the application that is important, and thus we are encouraged not to waste time solving manually and instead use simulators such as Matlab, Octave, and today there are online ploters. For example in one of my assignments in Signal and System Analysis course, I was asked to find periods in signal equations through visualization rather solving through formulas. Period is defined as a complete cycle.
As the title suggest, the course is a collection of topics discussed by Professors in Kumamoto University which is compulsory for international students and optional for native Japanese students. Unfortunately I do not have all the materials and do not have the right to share them but I do have the right to share my assignments. Most the assignments are summaries or just my impressions about each sessions and not all of them survived since some are asked to be hand written. Either way, these assignments has never been published anywhere and I, as the author and copyright holder, license this assignment customized CC-BY-SA where anyone can share, copy, republish, and sell on condition to state my name as the author and notify that the original and open version available here.
How Will the Feedback Control Technology be Useful or Beneficial in Your Future?
The feedback control is one of the topics that is discussed in the subject of control system. It can be implemented in all fields but in my case, I mostly heard in field of Engineering usually in Electrical and Mechanical Engineering. The control system itself is the field of controlling a system where a simple control device can control the behaviour of another device, a remote controlled car for example. The remote controlled car is a user or manually controlled device which generally is not feeback controlled that tends to be automatic. A feedback control technology automatically controls the device with the general definition follows after Figure 1.
Figure 1 above shows the block diagram of feedback control system where the desired output is controlled. The variable “input” itself is usually “desired output”, and “feedback” is the current “output”. The feedback system is a system where the current output is included into the calculation. For example an air conditioner is set an input of 250C, the current temperature is 270C will be the value of the feedback. The system will detect the difference in temperature that the room is still hot. The air condition will attempt to cool it down until it reaches 250C or lower, and once it reaches it the air condition will stop the cool down attempt. It will turn on again when the temperature rises.
Current Daily Life Application
Air conditioner is a good commonly known example in the first section. Another example is the refrigerator which should have the almost the same method as the air conditioner. There's a block diagram thermoelectric cooler control on Figure 2.
Another example of heat controlled device is the electric iron for ironing clothes. The heating process will stop if it reaches the desired temperature. There's still more examples like oven, microwave, dispenser, and heater during summer. Those are common examples that can easily be explained and tends to be very crucial if feedback control is not implemented. If iron, oven, dispensers, and stuffs over heat it will burn the clothes, the foods, spill the water, in worst case it might explode, cause fire, and casualties. Now days even computers and laptops are equipped with cooling features. The hotter the computer the faster the fan spins, and on the other hand if it cools down, the fan will spin slower. Those are essential control example in daily live, another very crucial example is the balance of helicopter issue, air plane, train, rocket, which are very dangerous if feedback control is not implemented. They're not daily lives thought.
There are other feedback control that can be implemented which is not necessary but could benefit greatly. On my undergraduate I made an automatic dimming light consist of light and photo-transistor as its sensor with micro-controller. Other than the automatically turning on the light when it's night, turning it off when it's day, it can automatically adjust the light intensity based on surrounding light intensity. It's an automatic lighting system that could adjust to the desired brightness with the block diagram on Figure 3. This isn't crucial but it could save energy if it's implemented.
Today's feedback control system purposes are for efficient, richer, and safer life. Electric vehicles such as the segways and scooters are feedback controlled on the balance issues where it tries to maintain the center of balance. As for the building demolisher prevents shaking of the demolisher (the pendulum iron ball) to prevent accident. The latest control system technology is on automatic cars and robots. Latest car can drive automatically using the GPS to find the way, using the road's lines and signs to keep on track (line follower robot is the most basic), and few sensors to detect surroundings like other cars, bike, and people crossing the road. It's not that far where vehicles can automatically be called to get us using remote control for example. If autopilot is already possible, then all we need is to send our GPS location to our car, and will automatically come. Lastly on Figure 5 is a compilation of feedback control applications.
Comment About Pulsed Power Science (3rd and 4th lecture)
First I would like to admit that my knowledge of chemistry and environment is still insufficient but I would like to give my comments and suggestion from the public point of view. The lecture consists of “Development of environmentally benign biomass utilization processes”, “producing functional polymers“, and “synthesizing bio-active peptides”.
The first comment I would like to give is about biorefinery with supercritical fluids. As the question that I asked on the previous lecture the idea is the cost of the refinery process in compare to the output whether they are fuels, power supply, or chemicals. If the input is larger than the output normally it's a loss, but biorefinery is a special case. Since it is the process of recycling waste is not necessary a loss if the cost to do the refinery is larger than the output. Instead I suggest to compare the cost used using conventional method and supercritical fluid method, then compare the output of those two methods. Which one is better? Another opinion is, maybe you may mix using supercritical fluids and conventional method. As for Supercritical CO2 Extraction and Micronization of Carotenoids I think it may proceed to the manufacturing side for next research. How is it if it's actually implemented in Industry?
On PNIPAM polymers synthesis topic using pulsed power, there's a graphic of using pulsed power to produce with low frequencies and the conventional way. The conventional method produces on 5 minutes while using pulsed power can produce almost instantaneously. On the very low frequency the conventional method can produce higher yields when over 10 minutes pass. I propose, how about mixing the pulsed power method with the conventional method? Use the pulsed power method first, then continue with conventional method. Another thing is you may continue retrieving data for more frequencies. Again is it more expensive to use the pulsed power method? Are we ready to implement it?
On synthesis of peptides using the same method, how about doing the experiment on the larger scale of volumes? If not possible due to current equipment, then I think we can provide datas with different volumes. Then to perform on large scale the first step can be done through theoretical, calculation, or simulation. Another curiosity, what if we do the experiment in different room temperatures?
Lastly I would like to thank for your time for giving us lecture. With have another view of what is like in Pulsed Power department. I believed that learning many different things will widen our view, and make even more path possible. I prefer to learn a little of everything than just being closed to study one subject. One last advice, since some of us are not familiar on this field is very hard for us the grasp the lecture, so I suggest you may provide videos of your experiments. We find it harder to imagine based on the advance theory, but with videos we directly see your research.
Noise Policy in Developing Countries
This Lecture of Current Science and Technology on 18th and 25th January 2016 discusses about noise policy and later on to be implement in developing countries by Professor Takashi Yano from Department of Architecture and Environment Planning, Graduate School of Science and Technology, Kumamoto University. On the first lecture the very basics of what noises are, how can it occurs, and how the impact is to the environment. Then a policy was introduced for this noise including how the policy was created. Develop countries like Europe and Japan already studied early for these policies. The Professor states he would like to continue the research on implementing them on developing countries, on the second lecture his study of noise policy in Vietnam was introduced.
On this topic noise is defined as unwanted sounds that bothers, cause disturbance, or cause annoyance. We can perceive sound in terms of energy, frequency, and temporal characteristic. Energy is more like the intensity of the sound with the higher the intensity the louder the sound. For us loud sounds tends to be nuisance. Frequency can correlate with pitch, women in choirs tends to have high pitch or high frequency or soprano sound, while men tends to have low pitch or low frequency or bass sound. The study between intensity and frequency have been conduct and we can refer to the research usually in form of graphic. With certain level usually high level of intensity are treated as noise. Where does noise came from? It can come from aircrafts, cars, trains, industrial, and many more. What are the effects of noise? It could be noise-induced hearing impairment, interference with speech communication, sleep disturbance, cardiovascular and physiological effects, mental health effects, performance, and residential behavior and annoyance. How does noise policies are made? First of is to get the scientific data of the noise by calculating the sound level in decibel (dB), not to forget to include the factors of daytime, evening, and night times. For example calculating the sound intensity of trains. Then get a social data by conducting surveys on people of getting their opinion of how annoying the sound is. In English it is either extremely, very, moderately, slightly, or not annoying at all. Another way is to use numbers or metrics and ask the people to fill it in. Finally a correlation between the level of annoyance and sound level is made usually in form of graphs. From here we derive of what sound level of certain object is tolerable in our policy. Studies in Europe shows an aircraft is more annoying on the same sound level rather than road traffic followed by railway. It's similar in Japan but railway is more annoying than road traffic, with these conditions bonus levels might be implemented in policies. These could be psychological issues and maybe others.
The research aims to creates noise policies for all around the globe. The example above (noise policy in Europe and Japan) shows that each place might not be able to implement the same policies, because each place had their own characteristics. On the second lecture there was a survey conducted comparison of road traffic noise annoyance among Japanese, Vietnamese living in Kumamoto and Vietnamese living in Hanoi. The result was the Vietnamese living in Hanoi experience a certain sound level doesn't find it annoying at all, while for Japanese is already annoying. This could be due to the situation Vietnam very crowded in traffic and they are used to such noises. These arouse a question for me that will the noise policy be fixed? For example if the noises are reducing in the future wouldn't that change the opinion of the people on next generation?
Research Idea on X-ray CT Scan
If you can use X-ray CT scanner for your study, what do you want to scan or study?
If I can use an X-ray CT scan for my study, I would like to use them for examining and reverse engineering of electronic devices the non destructive way. The term reverse engineering means to break open the object to know how it works that later could be troubleshoot, revised, enhance, or duplicate. The normal way have a high chance of breaking the electronic device, or at least it can no longer return to the way it is. Reverse engineering on a phone for example will break the guarantee seal. Therefore it be nice if we can use X-ray CT scan to reconstruct the inside into 3D digital image. Furthermore I wanted to use this X-ray CT for education, if possible commercially available for everyone. So I hope a portable X-ray CT are to be developed as vision of the author of the paper I showed below.
Search any papers using X-ray CT scanner or any other non-destructive test method with respect to your research.
In the field of computer science, electrical engineering, or alike is more likely that we develop an X-ray computed tomography (CT) scanner, although not limited to that. We can for example use CT to monitor battery condition for example, or see whether CT can be use for reverse engineering of an electronic device. But most research are on finding algorithms for fast CT scan, develop the image processing, or upgrade the hardware as now nano-technologies are aggressively advancing. Here I would like to show a paper of “Towards a Flexible and Portable CT Scanner” by Jeff Orchard and John Yeow from Waterloo University, Canada on 2008, which was 8 years ago today the prototype probably exist.
Even today we knew that X-ray CT scanner are very big and stationary, only available on the hospital, industries, or laboratories. It's not a public equipment, it's also high power consuming and produces high temperature. Like computers today can be portable (laptops, gadgets, PDA, etc) the thought came up of what if we can carry an X-ray CT scanner? To make this the author claimed that it is possible ever since the discovery of carbon nano tubes (CNT). CNT had the ability to project electrons when exposed to an electric field which is the one of the fundamental of X-ray CT. The author hadn't realized the device yet but simulates it when using flexible arrays in conjunction with X-ray detectors. The work before integrates the tiny x-ray devices into a flexible array such that each emitter can be individually pulsed. Through the simulation the author states that the challenge is within the irregular geometry shape (usually perfect circle). For this we have to treat scan as collection of individual ray sum. Other challenges were stated like the need of CNT to be in vacuum, the degradation of CNT structure, the unclear value of x-ray photon flux which determines the quality of the image, and some X-ray photons undergoes Rayleigh and Compton scattering.
Short Report (Comments) of 8th and 15th December Lecture
Binaural Acoustic and Other Research
Mamiko Yada explained to me 2x at poster session and special seminar of her topic related to binaural hearing and bone conduction in determining the source of incoming sound.
Koshiro Hira explained to me in his poster session on unidirectional sound for where each has anti sound waves of its opposing speakers so that it doesn't clash with each other, it's for evacuation pursposes.
I too am a member of this Lab which my research continues Dynamic Synchronization of Learning Contents previously by Dr. Royyana. I do have an idea of audio distribution over wireless sensor network for emergency evacuation purposes on remote area.
How to Return Home
From this I learned that the consequences of breaking the rule is more severe for foreigners than local citizen. Local citizen's suspension is more to social punishment while for let's say international student punishment must leave Japan.
Using vehicle carefully is very important, even bicycle is regarded as an official vehicle. Plagiarism must be avoided at any cost. Don't save money if it relates to health and safety. For example buy thick clothes for Winter, becareful of disasters.
But there is something still bothering me, and I highly suggest to explain deeply of this one. It's about copyright issues on The Internet. Back in Indonesia I don't have to worry anything when surfing on The Internet. I understand that you have to pay when downloading copyright materials, and uploading them is very severe. But what about just accessing the content like watching Youtube or reading online materials? Some say that you're not allow to download videos for example on Youtube, but what if there's no copyright on the video? It's the author's original video, and on Youtube he/she says it's free to distribute. Here P2P and file sharing software, it's said to be illegal, but I usually use them not for pirating, for example use torrent to download Linux and other open source software. Instead we encourage to use torrent because we wanted to widely distribute this free open source software.
My Assignment in Simple Image Compression Utility Website Evaluation and Other Journal Paper Presentation
My Impression About This Course
Overall I really enjoyed the class, the materials were not complicated and interesting, the links shows to interesting page, the quiz helped me focus on the important part, the assignments were exciting where we get experiment in compressing image, analyzing website, making video presentations, and watched other's videos that had interesting topics. I liked this course because it's very flexible that I can attempt them on my leisure time on Saturday and Sunday for example with almost no burden. The course also reminds me what I did for my bachelor thesis, which is applying discrete wavelet transform on an image in application of wireless sensor network.
The last section of the lecture was very difficult about user interface and universal design which the standards that was pointed to personally bear too much information. It's better to provide examples of a good and not okay page. For the videos I preferred accessing the through Youtube alike, maybe it can be note on the assignment to submit the file and recommended to upload them to Youtube. For the bandwidth consumption there's an option of introducing very high compression technique like x264. About the comment I said during the final face to face class, I thought that we should evaluated others presentation like the method on the picture below:
These are my recorded assignments while the rest are not recorded because they are quiz sessions and has never been published anywhere and I, as the author and copyright holder, license this assignment customized CC-BY-SA where anyone can share, copy, republish, and sell on condition to state my name as the author and notify that the original and open version available here. The Professor wanted to change the course to something like Human Perceptions in Computers while actually the course name is Multidimensional Signal Processing.
1. Choose 2 Image Compression Method and Explain
2. The web site that I chose to examine is my former University www.unud.ac.id 2015, Udayana University with 5 issues:
2.1 Readable: Make text content readable and understandable
2.2 Text Alternatives: Provide text alternatives for any non-text content
2.3 Navigable: Provide ways to help users navigate
2.4 Input Assistance: Help users avoid and correct mistakes
2.5 Predictable: Make Web pages appear and operate in predictable ways
3. Present a Journal Paper Related to Your Research
00:30 Keywords: Dynamic Content Synchronization, Distributed Learning Management Systems, Course Sharing, Unidirectional Content Synchronization, Limited Bandwidth, Developing Country, Adding the update button on contents in LMS. For bandwidth efficient content sharing and support in collaborative content development. Demonstrated on Moodle 1.9.
00:44 Today ICT greatly supports education.
01:35 Motivation: equally distribute the learning contents (quality education for all).
02:51 Related Works: Moodleshare and Communityhub.
03:07 Contribution: novel method for sharing e-Learning content.
04:14 Content Synchronization: differential update using hashing technology.
06:00 Coding Concept
09:31 Future Work
Finally I would like to vote for the 5 following presentation:
This is a summary about Biosignals in my Masters course of Bioinformation Engineering. If the passage is too much for you, then it is better to view the slide instead. This assignment except for the images which are from Miller Karol "Biological and medical physics, biomedical engineering" (2011), has never been published anywhere and I, as the author and copyright holder, license this assignment customized CC-BY-SA where anyone can share, copy, republish, and sell on condition to state my name as the author and notify that the original and open version available here.
1. Fudamental of Biosignals
From the biosignal is defined as a description of a physiological phenomena, the word “bio” and “signal” itself can mean any signals that can be found in living beings, also signal is some kind of message which contain informations. The very basic of biosignal assessment is from physiologist or us through observing the condition of the patient as on Fig. 1.1. The signals can be perceived by our senses like seeing in Fig. 1.1, touching as in Fig. 1.2, and hearing as in Fig. 1.3.
Moving on to the next topic, where does biosignals come from? Apart from looking through our eyes we can feel vibrations and hear sounds emanating from within the living body. It is said the sources are vital organs which will be discussed on chapter 2. Those sounds and vibrations will travel through the body and perceived by us. It can be illustrated in Fig. 1.4 where they transmit, propagate, and us, receive. Thus this can be mathematically modeled as a block diagram which in the book had a figure as in Fig. 1.5 where there is biosignals source, then goes through propagation, coupling, and conversion loss, finally registration of biogsignal. The figure shows high similarity of Ohm’s law where the generator is in form of voltage “U”, through propagation there is an impedance of “Z” or resistance “R” for direct current (DC) (this one is alternating current (AC)), the registration of biosignal in form of current “I”. On therapy for physiologist, they will first have to learn how biosignals from healthy living being, then tries performing sets of method on the sick patient to return the abnormal biosignals to its healthy state. The therapy model on the book of Fig. 1.6 is more like a control system trying to achieve the desired biosignal, on this case the biosignal of a healthy living being.
Outer parts of the body can be observed through sight, but for the inner parts sight is not common to use on the inside of the body conventionally since back then is not possible to see without disemboweling the outer parts. So vibration through touch and sound through hearing is commonly used to observe the inner part. To hear better stethoscope was invented, its ancestors is drawn on Fig. 1.7 and modern one is Fig. 1.1. However the information derived by the physician is highly subjective (different between each physicians) and a standard scale was demanded. It’s very interesting that back then they use musical nodes to document the heart beat rate on Fig. 1.8 before sphygmomanometer were discovered as on Fig. 1.9 which is its ancestor, and today the heartbeat can be drawn as form if sinusoid signals as on Fig. 1.10 which the figure also shows some other biosignals.
Today even more tools are demanded for biosignal monitoring as on Fig. 1.11. Base on the book previously data was only known by physicians, but today with more monitoring tools more of patient’s condition can be recorded and documented which can be used for further analysis. The future trend is to make portable wearables where the monitoring doesn’t have to be done in the clinic. Ideally the closer the data to the condition of everyday live the better since the sickness is not represented in the clinic but what happens when the patients do their activities in their respective environment. Research sensor node commonly in how much data that could be retrieved, battery live, and patients’ comfort where wireless is more preferred than wire for example.
In the previous chapter was explained that biosignals from inside of our body, propagates through the skin, and perceived by us with the help of stethoscope. Inside of our bodies can be found different organs with brain, heart, kidneys, liver, and lungs as the major. Each organs have their own functionality and thus may produce different kind of biosignals. However the origin of biosignals is hypothesized to come from even deeper that made up of these organs which are called cells. Thus this summary will only include how cell is related to biosignals.
Cell is the smallest unit of life which forms the basics of functions and structures in living things, also represents the origin of any biosignals. There is a basic structure of cells that consists of outer cell, cell contents, and its specialized units, which on Fig. 2.1 shows a illustration of it, but not all cells have the same structure, however shares similarities. The biosignal itself some may call it bioelectricity which is electricity emitted by cells. How does cells produce electricity? In simple term it is created from the potential difference between cells, and/or potential difference between intracellular (inside the cell) and extracellular (outside the cell). When the cells of living things are stimulated, sodium (Na+) and Potassium (K+) ions move rapidly through the cell membrane’s ion channel, creating a difference in electric potential. Sodium can be found outside the cell in form of NaCl (salt) while potassium can be found inside the cell. This also shows that cloride (Cl-) ion can also generate potential difference when flowing. Knowing this the number of nutrients the cells receive affects biosignal generated, with advance knowledge one can determine the condition of a person through biosignal alone.
In the previous paragraph it is said that sodium and potassium flows in and out through the membrane channel which in the book showed that the cell membrane played the most important part in generating biosignal or bioelectricity. The membrane isolates the inner of the cell from the outer and controls interaction between cells which attached to similar ones and repels others, also controls interaction with other substances. Fig. 2.2 showed the ion channel controls what is coming in and out, looking at the image the channel is a protein that lines up with lipid molecules with more details on the right image. First the lipid molecules has a hydrophobic (repels water) side and hydrophilic side. They are formed from attraction of molecules between positive and negative charge. Though water (H2O) is an ionic bond that have equal positive and negative charge but the negative part will be attracted to the positive part of the lipid and so on. Second the channel is a protein which is too much of a topic to discuss here, however the protein have five main function in cells which is (1) as a channel, (2) as transporters, (3) as enzymes, (4) as receptors (only channel receptor is dicussed (1) and (2)), and (5) as structural proteins (not discussed).
The channel can be passive channel like on Fig 2.2 or an active channel (transporter) on Fig 2.3 which chooses whether it is permeable to sodium, potassium, or whatsoever (only allowing certain ions). The flow of ions on passive channel is due to ions moving from higher concentration to lower concentration (sodium (Na+) comes in and Potassium (K+) comes out), and after certain points there will be equilibrium between concentrations of outside and inside the cell (no more flow) and that’s when the active channel activates. It will draw potassium back inside the cell and releases sodium back outside the cell. Thus the function of active channel is to create a difference in concentration between inside and outside in order for the passive channel to work again.
The flow of ions is not only due to difference in concentration but also to chemical bonding. For example the Potassium (K+) is positively charge and outside the cell there is a chloride (Cl-) negatively charge. It can be said that the negatively charge chloride (Cl-) is pulling the Potassium (K+), and this is one of the place that enzymes come into play. The enzymes are more of a helper and accelerator to speed up the chemical bonding mostly in figure aspect as on Fig 2.4 like a key and lock process.
Going back to the Fig 2.2 it showed a membrane that has one passive channel, while in actual it can have more active and passive channel, also another channel which will be discussed. But before that, with just the active and passive channel the cell is in a resting state (resting potential) where the flow of ions in and out of the passive channel is stable. Potassium (K+) going out, then going back in because the cell became negatively charged due to lack of positive ions, then going out again due to difference in concentration. When equilibrium is reached the active channel creates a difference in concentration again and everything will restart. This stable state or resting potential calculated on squid axon is about -50mV.
The other potential other than the resting potential is the action potential. It is state when the cell flows a large portion of ion generating more potential difference, meaning much more bioelectricity or biosignals. This action potential is triggered when the cell is stimulated, Fig 2.5 shows a model of the axon cell being artificially stimulated, while Fig 2.6 shows how our body really works where the stimulation is sent from our brain, through the neuron, then contracting the muscles. The channel that is responsible for action potential is called gated channel. People studying electronics should see similarity with gated transistors, when a certain voltage is applied to the gate, the flow opens and amplifying the current. Surprisingly the gated channel works in similar way, or maybe the other way around that transistor was modeled after this. On Fig 2.7 the gated channel can either be voltage-gated or transmitter-gated. For voltage-gated like transistor can be stimulated by applying voltage around -55mV (in squid) while the transmitter-gated relies on a substance like a key that activates the channel. On Fig 2.6 the neurons applies voltage and releases these substances. After the action potential state it will return to resting potential state. With more examination the resting and action potential can be modeled into form of electric circuit as on Fig 2.8.
My Impression on This Class
My undergraduate is in electrical engineering in the field of telecommunications but I knew only a little of telecommunications and excels at programming and computer network. Back then I was unfortunate in taking a short electromagnetic wave course that the course was until before maxwell equation which is why I did not know about maxwell equation. In the end I'm very weak on that field and finds it hard to study antennas. Thanks to this masters course I was able to learn more of my field and cover some of my weaknesses. If I could give suggestion of this course, I would suggest the use of computer simulations such as Octave to demonstrate electromagnetic waves and polarization, Splat for RF propagation, or nec2c for antenna design simulation which will make the course more interesting. These are opensource softwares. This assignment except the images has never been published anywhere and I, as the author and copyright holder, license this assignment customized CC-BY-SA where anyone can share, copy, republish, and sell on condition to state my name as the author and notify that the original and open version available here.
What is the difference between the LOS and NLOS environment?
What is the merit of using circular polarization in wireless communication and describe examples of applications of circular polarization?
There are many kinds of antennas, why many different kinds of antennas should exist?
Grandma: Sonny, who put more coins in my chest?
Grandson: Nobody did grandma since the first time Sonny gave those coins.
Grandma: That's funny, maybe Grandma's getting senile? Grandma remembered it was not full.
Grandson: Wait Grandma, let me check. Oh the price is above $1 for the whole week. You are not senile Grandma, you are supposed to have more coins now.
Grandma: Are you saying the coin multiplied by itself?! What kind of coin make babies?
Grandson: It is called Ampleforth Grandma. The price is above $1 which means more people demands more coins. So Lord Ampleforth supplied us more coins to sell to them Grandma!
Grandma: Then let's go to the market and sell to them Sonny!
Grandma: Sonny, did a thief broke into the house!?
Grandson: The security guard saw nobody entered the house Grandma.
Grandma: Then why are there less coins?
Grandson: let me check again. Oh, the price is below $1 which means there is too much coins and less people demands them. So Lord Ampleforth reduced our supply.
Grandma: Sonny! Will my coins disappear one day?!
Grandson: Don't worry Grandma, no matter how far the price drops, Lord Ampleforth will only take at most 10% each day (Rebase % = (((Oracle Rate - Price Target) / Price Target) * 100) / 10). For every 10 coins Grandma have, Lord Ampleforth will only take 1.
Grandma: Still, why is Lord Ampleforth so stingy?
Grandson: To create more scarcity Grandma so that people pays attention to it and demands will rise again!
Saya pikir Klan dan Perusahaan di Torum adalah fitur untuk membangun komunikasi antara proyek dan pendukung mereka berdasarkan whitepaper:
Dengan memanfaatkan konsep media sosial sebagai fondasinya, Torum dibentuk untuk membentuk ekosistem kripto satu atap yang menghubungkan proyek dan komunitas crypto di seluruh dunia bersama-sama. Antarmuka platform blog sangat membatasi perluasan fitur dan fungsi platform seperti pengiriman pesan waktu nyata, integrasi emote khusus, dll. Karena interaksi di antara pengguna sangat diabaikan, platform ini gagal memberikan upaya pembangunan komunitas yang sebenarnya. Atas penemuan ini, Torum memposisikan dirinya sebagai platform media sosial pertama yang menganjurkan konsep berfokus pada kripto. Dengan memusatkan kepentingan komunitas, Torum mampu membentuk basis komunitas yang sebagian besar terdiri dari pengguna mata uang kripto. Saat komunitas berkembang, efek jaringan niche yang kuat akan menarik lebih banyak pengguna dan proyek mata uang kripto ke platform.
Klan biasanya berfungsi seperti forum dengan tambahan Ruang Obrolan agar semua Anggota dapat berinteraksi secara instan. Pengguna dapat membuat komunitas kasual yang menarik minat orang lain. (https://www.torum.com/help/general/clans)
Namun, bukankah ada sesuatu yang tidak ada di klan? Itu adalah influencer terkenal. Kita membutuhkan seseorang seperti Vitalik di klan Ethereum, Roger Ver di Klan Bitcoin Cash, Andreas Antonopoulos yang merupakan pendidik kripto terkenal, Justin Sun, dll. Saya minta maaf karena telah bersikap keras terhadap kita semua termasuk saya sendiri, tetapi platform ini mungkin tidak akan berhasil jika hanya berisi orang tak terkenal di dalamnya. Nah, hanya ada dua solusi untuk ini, dan itu adalah mengundang orang-orang terkenal atau pergi ke luar dan buat nama untuk diri sendiri dan menjadi terkenal.
Profil Perusahaan pada dasarnya adalah instrumen untuk proyek/entitas/startup berbasis blockchain dan mata uang kripto untuk menampilkan diri mereka secara profesional di seluruh Torum. Mereka diizinkan untuk menampilkan detil Perusahaan mereka kepada publik agar Pengguna dapat mengenali dan mengetahui lebih banyak tentang kehadiran dan pengoperasian mereka. Profil Perusahaan juga diperlakukan sebagai "Pengguna", di mana mereka memiliki @namapengguna mereka sendiri, diizinkan untuk membuat Kiriman untuk konten dan pembaruan mereka, serta bereaksi terhadap konten lain di seluruh Torum. Selain itu, mereka juga dapat bergaul dengan Klan tertentu (dengan atau tanpa nama yang sama) untuk membangun Komunitas mereka sendiri, memungkinkan penggemar, pengikut, dan karyawan mereka untuk saling berinteraksi. Selain itu, Profil Perusahaan juga diperbolehkan untuk Membuat Acara secara eksklusif. (https://www.torum.com/help/general/company.
Siapapun diperbolehkan untuk membuat perusahaan tetapi tidak ada yang diperbolehkan untuk meniru perusahaan lain dimana dengan kata lain tidak ada yang diizinkan untuk berpura-pura memiliki perusahaan yang bukan miliknya maka jangan membuatnya kecuali Anda memiliki izin. Mengapa tidak memulai perusahaan Anda sendiri? Misalnya mengumpulkan teman dan membentuk tim misalnya perusahaan investasi dan perdagangan, perusahaan berita, perusahaan pendidik kripto, perusahaan pemburu airdrop, dll.