201 research outputs found
Kepentingan Amerika Serikat dalam Proses Denuklirisasi Korea Utara. BY AUTHOR: Javira Ardiani Bima Jon Nanda Zulkifli Harza
No full textKepentingan Amerika Serikat dalam Proses Denuklirisasi Korea Utara. BY AUTHOR: Javira Ardiani Bima Jon Nanda Zulkifli Harz
Effect of Ultrasonic Bonding Parameters on the Contact Resistance and Bondability Performances of CIGS Thin Film Photovoltaic Solar Panel
No full textThis article aims to investigate the optimal ultrasonic bonding parameter namely bonding pressure, bonding energy, and bonding amplitude that can minimize the contact resistance (R-c), maximize the peel strength, and identify the possible failure modes of ultrasonic Al bond on Mo back contact layer of copper indium gallium (de)selenide (CIGS) thin-film photovoltaic (TFPV) solar panel. The transmission line method was used to measure R-c and a peel test was carried out to measure the peel strength and the possible failure modes of ultrasonic Al bond on the Mo layer. Design of experiment using D-optimal method was utilized to evaluate the effect of the ultrasonic bonding parameter toward the R-c and peel strength of the Al bond on the Mo layer. Individual and combination of the ultrasonic bonding parameter have a significant effect on the quality of Al bonds on Mo back contact layer of CIGS TFPV solar panel. Possible failure modes could be identified through the application of the higher value of individual ultrasonic bonding parameter while keeping constant other bonding parameters and through the qualitative result of the load-displacement profile obtained from the peel test. However, sample 2 with bonding pressure of 3 bar, bonding energy of 20 Ws, and bonding amplitude of 7.7 mu m is the best-optimized bonding parameter window that can be applied to obtain ultrasonic Al bond with lower R-c and higher peel strength. It was noted that bonding pressure is the most sensitive bonding parameter followed by bonding amplitude and bonding energy.This work was supported in part by the Ministry of Higher Education of Malaysia under the Fundamental Research Grant FRGS/1/2020/TKO/UNIKL/02/10 and in part by the Universiti Kuala Lumpur under Short Term Research under Grant str19087.Zulkifli, MN (corresponding author), Univ Kuala Lumpur, British Malaysian Inst, Elect Engn Sect, Gombak 53100, Malaysia.
[email protected]; [email protected]; [email protected]; [email protected]
PERANCANGAN ANTENA DIREKSIONAL PADA BAND 2,4 GHz UNTUK MODUL WIFI IoT ESP 8266
No full textPerancangan Antena Direksional Pada Band 2,4 GHz
Untuk Modul Wifi IoT ESP8266
Zulkifli
Sotyohadi, ST , MT.
Ir.Kartiko Ardi Widodo. MT.
[email protected]
ABSTRAK
Penggunaan teknologi IoT ESP8266 sebagai wifi modul yang
berfungis sebagai media pengiriman data melalui gelombang
elektromahnetik sanggat sering digunakan pada perangkat elektronik
dengan jarak atau ruang lingkup tertentu.
Modul wifi IoT ESP8266 memiliki antena onboard dengan sifat
omnidireksional dengan frekunsi kerja pada 2,4-2,5 GHz (2400MHz-
2483,5MHz) dan keluaran daya +20 dBm. Dalam penggunaannya
menjadi permasalahan apabila ESP8266 di gunakan untuk arah-arah
tertentu secara direksional karena sifat antena yang terpasang pada
ESP8266 bersifat omnidireksional.
Dalam makalah ini penulis ingin mengembangkan ESP8266 dari
segi pemancaran direksional dengan menggunakan antena horn dan
antena yagi dengan pengukuran menggunakan VNA(Vector Network
Analyzer) dan spektrum analayzer dimana paremeter yang akan di ambil
iyalah frekuwensi kerja, S11, VSWR, bandwidh, gain, dan polaradiasi
antena yang digunakan.
Dari halis pengujian antena horn dan antena yagi maka diperoleh
kesimpulan dimana antena horn jauh lebih baik dengan mengacu hasil
pada paremeter frekuwensi kerja 2,4 GHz, S11 -29,52 dB, VSWR 1.06,
bandwidth 174MHz, gani -35,2dB.
Kata Kunci— ESP8266, antena direksional, antena horn, antena yagi,
frekuwesi kerja, S11, VSWR, bandwidh, gain, polaradiasi.
Designing Directional Antenna at 2.4 GHz Band for
ESP8266 IoT Wifi Module
Zulkifli
Sotyohadi, ST , MT.
Ir.Kartiko Ardi Widodo. MT.
[email protected]
ABSTRACT
The use of ESP8266 IoT technology as a wifi module that functions
as a medium for sending data through electromagnetic waves is often
used on electronic devices with a certain distance or scope.
The ESP8266 IoT wifi module has an onboard antenna with
omnidirectional properties with a working frequency of 2.4-2.5 GHz
(2400MHz-2483.5MHz) and a power output of +20 dBm. In its use it
becomes a problem if ESP8266 is used for certain directions in a
directional manner because the antenna properties installed on ESP8266
are omnidirectional.
In this paper the author wants to develop ESP8266 in terms of
directional transmission using horn antennas and yagi antennas with
measurements using VNA (Vector Network Analyzer) and spectrum
analayzer where the parameters to be taken are working frequency, S11,
VSWR, bandwidh, gain, and polaradiation antenna used.
From the testing of horn antennas and yagi antennas, the conclusion
is that the horn antenna is much better by referring to the results of 2.4
GHz, S11 -29.52 dB working frequency, 1.06 VSWR, 174MHz
bandwidth, and -35.2dB.
Keywords - ESP8266, directional antenna, horn antenna, yagi
antenna, working frequency, S11, VSWR, bandwidh, gain,
polaradiation
Consideration under the English Law and the Malaysian Contracts Act 1950: a comparative study / Zulkifli Zabidin
No full textConsideration is one of the most important elements to constitute a valid and enforceable contract. Being so, it has caused confusion among the law students and lawyers alike. Provision of different laws has worsen the situations and this is especially so in Malaysia. The contract law of Malaysia, which is governed by the Malaysia Contracts Act 1950. As a statutory law drafted similar to that of the Indian Contract Act. As far as the Indian Contract Act is concerned, one famous author, Sir Frederick Pollock, has said that the characteristic of that Act was that it was a code of the English Law
Defect management during defect liability period (for roadwork) / Muhammad Zulkifli Abd Rahim
No full textThis report shows the findings from practical training that student had undergoes for 4 months starting from 1st March 2018 until 29th June 2018. This report should consist 5 chapter which consist of the company background, literature review on the topic selected, case study relevant to the title of the report, problem and recommendation and lastly, conclusion from the report. The topic of the
report varies depends on the company / firm scope of work that were approved by the program coordinator and by consult with the supervising lecturer that the students were assigned. The topic of this report are “Defect Management During Defect Liability Period (DLP)”. In this report shows the introduction to defect liability period, the process of how defect liability period were done, the duration,
parties that were involved in defect liability period and etc. Besides that, this topic are focused on a roadwork which the DLP are not over yet. The method to obtain the information are by documentation from the company, interview with the person in charge of the project from the company and from books and journal. However there were some setbacks that the author have to face in completing
this report. The author hopes that this report will provide good information and beneficial to others
Corresponding Author: I. Zulkifli, Institute of Tropical Agriculture
No full textAbstract: A randomized complete design with 6 replicates of 10 birds per treatment (n = 60) was utilized to evaluate the effects of feeding corn dried distillers grains with solubles (CDGS) on growth performance, carcass yield and breast muscle fatty acid composition of chickens. A total of 300 male broilers (Cobb 500) were fed with different levels of CDGS (0% -control, 5, 10, 15 and 20%) in starter (age 0 to 21 day) and grower (age 21 to 42 day) diets, and weight gains and feed intakes were recorded. All diets were formulated isocaloric and isonitrogenous which met or exceeded the NRC requirements. At the end of the experiment (42 day) eight birds from each treatment were slaughtered to measure the dressing percentage, carcass parts yield and fatty acid profile of breast meat (from the left carcass side). Birds fed 5% CDGS had better (p<0.05) feed conversion ratio than those fed 10, 15 or 20%, but were not different (p>0.05) from control. There were no differences (p>0.05) in overall weight gain, feed intake, dressing percentages and carcass parts yields (% of carcass weight) among treatments. There were greater (p<0.05) percentages of linoleic acid (18:2 n-6) and elevated (p<0.05) polyunsaturated to saturated fatty acid ratios in chicken breast meat with increasing dietary CDGS. In conclusion, incorporating 5% of CDGS in the broiler diet did not affect (p>0.05) the growth performance and carcass yield. However, increasing the dietary CDGS increased (p<0.05) the percentage of linoleic acid and polyunsaturated to saturated fatty acid ratio in chicken breast meat
An insight into the practical budgeting for productions of production houses / Shahrul Azlan Mohd. Zulkifli
No full textThis project paper is done with the intention of gaining an insight into the practical aspect of budgeting applied by the management of a Production House for its productions. The study was deemed essential as there were many grouses about the film industry being not so financially lucrative. There were a number of failed financial ventures into this glamourous industry. The creative and artistic elements of this business field have been discussed many a time in various media and sometimes with a touch of nostalgia. However, only a few have touched on the financial and management aspects. Thus the author would like to gain an insight into a component of that important but least studied aspect of the business, that is budgeting and how it is practised in this highly creative and artistic business in Malaysia
A bibliometric analysis of global research trends in political literacy using web of science database / Nursyahida Zulkifli
No full textThe objective of this study is to provide a bibliometric analysis on political literacy using one of the indexed journal databases which are Web of Science (WOS). This study analyzed the development trend and literature published in the study field of political literacy. The citation, bibliographical, and author keywords information of the related articles were exported to VOSviewer. The VOSviewer was used for the analysis that involved 122 documents related to political literacy studies. The findings showed that increasing trends of publications related to political literacy globally especially after 2007. Most of the documents of political literacy published in the WOS database between 1979 and 2021 were original research articles, which were mainly written in English. The findings of the present study are hoped to provide useful insights and information for the researchers to determine future directions related to the field of political literacy studie
ANALISIS ASPEK SOSIAL DAN ASPEK MORAL DALAM NOVEL PESTA TERAKHIR KARYA ZULKIFLI L. MUCHDI
No full textNovel is one of literature work that often show various of life story of the main character. This is because the novel it is one of result of emotional thinking of author, What that author feel inside or outside him/her will affect the result of what novel show. Outside emotional thinking may come from the surrounding environtment and society. So novel sometimes will show some reality like it is in real life that written in aesthetic language. Therefore novel sometimes not off from sosial aspect and moral aspect that happen in real life. Novel Pesta Terakhir tell the story of Wike that struggle helping her families by looking for money to pay the debt that cause their home to be confiscated, as the time goes by their house bought by Aunt Rose, and with this tactic will make Wike come and negotiate with her and then lure Wike into trap of human trafficking. Thus the purpose of this research is to find the sosial aspect and moral aspect in novel Pesta Terakhir work from Zulkifli L. Muchdi, this research method is using qualitative with study literature technique. Result of this research is there are social aspect economy, education, culture, politic, and society. Likewise, there are moral aspects, namely prostitution, drug use, and human trafficking.
Keywords: social aspect, moral aspect, novel pesta terakhirNovel merupakan bagian dari karya sastra yang sering membahas berbagai kisah hidup tokoh utama. Hal ini dikarenakan novel sendiri merupakan hasil dari pemikiran emosional pengarang, apa yang penulis rasakan di dalam dirinya dan luarnya dapat mempengaruhi Novel. Emosional pengarang yang berasal dari luar dapat berasal dari lingkungan dan masyarakat sekitar. Maka Novel terkadang akan memunculkan suatu realita seperti yang ada dikehidupan nyata dituliskan kembali melalui bahasa yang estetika. Oleh karena itu novel terkadang tak lepas dari aspek sosial dan aspek moral yang ada di kehidupan sehari-hari. Novel Pesta Terakhir menceritakan kisah perjuangan Wike membantu keluarganya mencari uang agar rumah merea tidak disita oleh bank, seiring berjalan waktu rumah mereka dibeli oleh Tante Rose, dan dengan taktik ini akan membuat Wike bernegosiasi dengan dirinya untuk mengulur masuk Wike dalam perangkap perdagangan manusia. Dengan demikian penelitian ini bertujuan untuk mencari aspek sosial dan moral yang terdapat dalam novel Pesta Terakhir karya Zulkifli L. Muchdi, penelitian ini menggunakan metode penelitian kualitatif dengan teknik studi pustaka. Hasil dari penelitian ini terdapat aspek sosial ekonomi, pendidikan, budaya, politik, dan kemasyarakatan. Begitu pula terdapat aspek moral yaitu pelacuran, penggunaan narkoba, dan perdagangan manusia
Elements of museum mobile augmented reality for engaging hearing impaired visitors
No full textNowadays, designers are more concern with the issue of engagement and informal learning at museum and gallery sites.This has made studies to focus more on the use of Mobile Augmented Reality (MAR) at museum and gallery sites. However, most of the MAR applications for museum visitors are largely tailored to normal hearing visitors while the hearing-impaired (HI) visitors are not supported.The hearing impaired (HI) community account for over 5% of the world's populace which is about 360 million people.Thus, this paper explores the design elements of mobile augmented reality for engaging hearing impaired visitors at the museum site.The findings of this paper argues that there are eleven major elements of engagement of MAR needed for the design of an efficient museum MAR app for hearing impaired visitors. These eleven elements include Aesthetics, Curiosity, Usability, Interaction, Motivation, Satisfaction, Self-Efficacy, Perceived Control, Enjoyment, Focused Attention and Interest. This study pointed out that for an efficient and engaged MAR app for the HI community especially HI visitors to museum sites, these eleven elements are critical.This finding will help MAR designers and developers on how to design an efficient and engaged MAR app for the HI community at large and museum HI visitors specifically. © 2017 Author(s)
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