Improving the network transmission cost of differentiated web services

This paper investigates into the transmission cost of web services related messages which is affected by network latency. Web services enable seamless interaction and integration of e-business applications. Web services contain a collection of operations so as to interact with outside world over the Internet through XML messaging. Though XML effectively describe message related information and is fairly human readable, it badly affects the performance of Web services in terms of transmission cost, processing cost, and so on. This paper aims to minimize network latency of message communication of Web services by employing pre-emptive resume scheduling. Fundamental principle of this approach is the provision of preferential treatment to some messages as compared to others. This approach assigns different priorities to distinct classes of messages given the fact that some messages may tolerate longer delays than others. For instance, shorter messages may be given higher priority than longer messages, or the Web service provider may give higher priority to the messages of paying subscribers

The Induction and Evaluation of Productive Semidwarf Mutants of Basmati-370

Dry, uniform seeds of Basmati 370 with about 14% moisture content were exposed to 0, 15,20 and 25kR doses of gamma rays (60Co source). Twenty one semi-dwarf mutants were selected from 36,000 M2 plants originating from about 12,000 Ml plants. The breeding behaviour of these mutants was studied in M3 and consequently 6 mutants were selected. The comparative yield test of mutants with mother cultivar Basmati-370, established the high yield potential and semi-dwarf plant posture of mutant strains. The other plant attributes as well as physico-chemical traits of the mutants and parent cultivar are also presented

Stack-run adaptive wavelet image compression

We report on the development of an adaptive wavelet image coder based on stack-run representation of the quantized coefficients. The coder works by selecting an optimal wavelet packet basis for the given image and encoding the quantization indices for significant coefficients and zero runs between coefficients using a 4-ary arithmetic coder. Due to the fact that our coder exploits the redundancies present within individual subbands, its addressing complexity is much lower than that of the wavelet zerotree coding algorithms. Experimental results show coding gains of up to 1:4dB over the benchmark wavelet coding algorithm

SOUTH CHINA SEA: THE CHINESE APPROACH

The international community has shown considerable interest in China's assertiveness in the South China Sea in recent times. The objective of this study is to examine the strengths and weaknesses that form the foundation of Chinese strategies, and decipher the underlying motives and strategies employed by China in its pursuits. The paper evaluates China's current position in the South China Sea and its effects on regional stability and global geopolitics. The findings reveal that China follows a holistic approach with significant infrastructure, diplomatic, and regional geopolitical gains. These efforts expose risks such as regional alliance tensions, international legal framework complexity and though rare but potential armed engagements.   Bibliography Entry Hussain Awan SI (M), Sajjad. 2023. "South China Sea: The Chinese Approach." Margalla Papers 27 (2): 44-59

ANALISIS KINERJA PERSONEL FLIGHT OPERATIONS OFFICER (FOO) PT. GAPURA ANGKASA TERHADAP KESELAMATAN PENERBANGAN DI BANDAR UDARA INTERNASIONAL YOGYA KARTA

Keselamatan penerbangan merupakan  suatu  hal  yang  sangat  penting dalam sebuah penerbangan, ataubisa dikatakan bahwa keselamatan penerbangan adalah kondisi  suatu  penerbangan yang berjalan dengan lancar dan aman dari stasiun keberangkatan hingga tiba di stasiun tujuan. Termasuk personel Flight Operations Officer yang dalam hal ini harus memperhatikan aspek keselamatan dan keamanan dalam suatu penerbangan, sehingga personel FOO dituntut untuk memiliki ketelitian dan kedisiplinan  dalam  melakukan  tugas  dan  tanggung jawabnya agar suatupenerbangan dapat berjalan dengan selamat dan aman. Metode penelitian kualitatif digunakan dalam penelitian ini. Wawancara dan observasi partisipan digunakan sebagai data primer, dan data yang didapat dari kantor operations PT Gapura Angkasa Yogyakarta beserta dokumentasi digunakan sebagai data sekunder dalam penelitian ini, selain itu informasi dari publikasi ilmiah, artikel atau penelitian terdahulu yang berkaitan dengan penelitian yang dilakukan oleh peneliti digunakan sebagai data sekunder dalam penelitian ini. Teknik analisis data dalam penelitian ini menggunakan reduksi data, penyajian data dan penarikan kesimpulan. Berdasarkan data yang didapat dari penelitian ini yang berjudul Kinerja personel Flight Operations Officer (FOO) terhadap keselamatan penerbangan di Bandar Udara Internasional Yogyakarta bahwasannya personel FOO di lapangan sudah melakukan pekerjaanya dengan baik dalam memberikan pelayanankepada suatu penerbangan yang  ditanganinya, baik berupa pemberian informasi  data flight plan,  information weather,  notam-notam  dan  briefing  sudah  dilakukan dengan  baik  ,  namun juga  dalam  penelitian  ini  ditemukan  adanya  beberapa kendala  yang  personel  temui  di  lapangan  yaitu  keterbatasan  SDM  dan juga keterbatasan  sarana  dan pra-sarana  lainnya,  seperti  Jaringan  internet,  supplai kertas, tinta, printer dan komputer yang kerap menjadi hambatan bagi personel FOO yang akan bekerja di lapangan

The roman conquered by delay: reducing the number of preemptions using sleep states

Sleep-states are emerging as a first-class design choice in energy minimization. A side effect of this is that the release behavior of the system is affected and subsequently the preemption relations between tasks. In a first step we have investigated how the behavior in terms of number of preemptions of tasks in the system is changed at runtime, using an existing procrastination approach, which utilizes sleepstates for energy savings purposes. Our solution resulted in substantial savings of preemptions and we expect from even higher yields for alternative energy saving algorithms. This work is intended to form the base of future research, which aims to bound the number of preemptions at analysis time and subsequently how this may be employed in the analysis to reduced the amount of system utilization, which is reserved to account for the preemption delay

Device power management for real-time embedded systems

A large part of power dissipation in a system is generated by I/O devices. Increasingly these devices provide power saving mechanisms to inter alia enhance battery life. While I/O device scheduling has been studied in the past for realtime systems, the use of energy resources by these scheduling algorithms may be improved. These approaches are crafted considering a huge overhead of device transition. The technology enhancement has allowed the hardware vendors to reduce the device transition overhead and energy consumption. We propose an intra-task device scheduling algorithm for real time systems that allows to shut-down devices while ensuring the system schedulability. Our results show an energy gain of up to 90% in the best case when compared to the state-of-the-art

Energy-conscious tasks partitioning onto a heterogeneous multi-core platform

Modern multicore processors for the embedded market are often heterogeneous in nature. One feature often available are multiple sleep states with varying transition cost for entering and leaving said sleep states. This research effort explores the energy efficient task-mapping on such a heterogeneous multicore platform to reduce overall energy consumption of the system. This is performed in the context of a partitioned scheduling approach and a very realistic power model, which improves over some of the simplifying assumptions often made in the state-of-the-art. The developed heuristic consists of two phases, in the first phase, tasks are allocated to minimise their active energy consumption, while the second phase trades off a higher active energy consumption for an increased ability to exploit savings through more efficient sleep states. Extensive simulations demonstrate the effectiveness of the approach