2,181 research outputs found
Distortion product otoacoustic emissions as a prognostic factor for idiopathic sudden sensorineural hearing loss
No full textGrating writing through the fibre coating using a 248nm excimer laser
No full textFibre Bragg gratings have been written through the fibre coating using a 248nm excimer laser for the first time. A standard off-the-shelf coating was used, and 92% reflectivity gratings were obtained with an index change of 2.4x10-4
Grating writing through the fibre coating at 244nm and 248nm
No full textHigh quality fibre Bragg gratings have been written through the fibre coating using both 244nm frequency-doubled Ar+-ion and 248nm KrF excimer lasers for the first time. A standard off-the-shell coating was used, and 92% reflectivity gratings were obtained with an index change of 2.4 x 10-4
Fibre gratings written through the coating at 244nm and 248nm
No full textFibre Bragg gratings have been written through the fibre coating using 244nm frequency-doubled Ar+-ion 248nm KrF excimer lasers for the first time. A standard off-the-shelf coating was used, and 92% reflectivity gratings were obtained with an index change of 2.4 x 10-4
Priori-information aided iterative hard threshold: a low-complexity high-accuracy compressive sensing based channel estimation for TDS-OFDM
No full textThis paper develops a low-complexity channel estimation (CE) scheme based on compressive sensing (CS) for time-domain synchronous (TDS) orthogonal frequency-division multiplexing (OFDM) to overcome the performance loss under doubly selective fading channels. Specifically, an overlap-add method of the time-domain training sequence is first proposed to obtain the coarse estimates of the channel length, path delays and path gains of the wireless channel, by exploiting the channel's temporal correlation to improve the robustness of the coarse CE under the severe fading channel with long delay spread. We then propose the priori-information aided (PA) iterative hard threshold (IHT) algorithm, which utilizes the priori information of the acquired coarse estimate for the wireless channel and therefore is capable of obtaining an accurate channel estimate of the doubly selective fading channel. Compared with the classical IHT algorithm whose convergence requires the norm of the measurement matrix being less than 1, the proposed PA-IHT algorithm exploits the priori information acquired to remove such a limitation as well as to reduce the number of required iterations. Compared with the existing CS based CE method for TDS-OFDM, the proposed PA-IHT algorithm significantly reduces the computational complexity of CE as well as enhances the CE accuracy. Simulation results demonstrate that, without sacrificing spectral efficiency and changing the current TDS-OFDM signal structure, the proposed scheme performs better than the existing CE schemes for TDS-OFDM in various scenarios, especially under severely doubly selective fading channels
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
Full text linkBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Selective cytotoxic activity of GCV in pSPB-tk–transfected A549 human lung adenocarcinoma cells.
No full textThe viability of human cells—A549, H460, CH27, IMR32, and HK2—was assessed by the CCK-8 method 72 hours after various treatments. The treatment combinations included PBS followed by PBS (PBS/PBS), PBS followed by GCV (PBS/GCV), pUMVC1-tk followed by PBS (pCMV-tk/PBS), pSPB-tk followed by PBS (pSPB-tk/PBS), pUMVC1-tk followed by GCV (pCMV-tk/GCV), and pSPB-tk followed by GCV (pSPB-tk/GCV). * and ** P value <0.005.</p
Job satisfaction research and improvement in vocational education institutions "TK" case
No full textKristīne Dorofejenkova “Apmierinātības ar darbu izpēte un pilnveide Profesionālās izglītības iestādē “TK””. Bakalaura darba mērķis ir: Pētīt apmierinātību ar darbu Profesionālās izglītības iestādē “TK” un tās pilnveides iespējas. Bakalaura darba empīriskajā daļā darba autore veic pētījumu Profesionālās izglītības iestādē “TK”. Uzņēmuma nosaukums tika mainīts konfidencialitātes nolūkos. Veicot pētījumu darba autore pielietos divas pētījuma metodes – SVID analīzi un aptauju. Aptaujā piedalījās 80 darbinieki no akadēmiskā personāla, 32 vīrieši un 48 sievietes, kuru vidējais vecums ir 46 gadi. Veicot pētīju darba autore noskaidroja darbinieku piekrišanu dažādām organizācijas funkcijām, vai tās pastāv organizācijā un noteica darbinieku vidējos apmierinātības rādītājus. Bakalaura darba apjoms 50 lpp., darbā ievietoti 10 attēli, 1 tabula, tika analizēti 24 avoti un pievienots 1 pielikums.Kristīne Dorofejenkova “Job satisfaction research and improvement in vocational education institutions "TK" case”. Bachelor thesis is: Study job satisfaction and improvement possibilities in vocational education institutions “TK”. In the empirical part of the Bachelor's paper, the author carries out research in the vocational education institution "TK". The name of the company has been changed for confidentiality reasons. Two research methods - SWOT analysis and a survey will be used in the research. The survey was filled in by 80 academic staff members, 32 men and 48 women with an average age of 46 years. During the research author clarified the employee's agreement to the various functions of the organization, whether they exist in the organization and determined the average employee satisfaction ratios. Bachelor paper has 50 pages, 10 pictures placed in work, 1 tables, 24 sources analyzed and 1 appendices added
PENGGUNAAN GAME EDUKASI UNTUK MENINGKATKAN HAPALAN ANGKA DI TK DIPONEGORO SURABAYA
Full text linkThis study aimed to determine the use of educational games to improve memorization of 1-20 numbers in TK Diponegoro Surabaya. This school is located at Jalan Kedung Sroko No.17 Surabaya. The sample of this study was the children of B group Diponegoro Kindergarten. The authors used descriptive qualitative methods. The author focused on how to apply the use of educational games to improve memorization numbers 1-20 at Tk Diponegoro Surabaya. The author made observations during the 3x meeting. Each meeting, they play a different educational game but with the same content. The subject of the research was Diponegoro Kindergarten with 20 students. The results showed that students were very enthusiastic in learning to memorize numbers 1-20 as well as improving children's fine motor skills..
Keywords: educational games, memorizing, numbers 1-20Penelitian ini bertujuan untuk mengetahui penggunaan game edukasi untuk meningkatkan hapalan angka 1-20 di Tk diponegoro surabaya. Sekolah ini terletak di Jalan Kedung Sroko No.17 Surabaya Sample penelitian ini adalah anak-anak kelompok B TK Diponegoro. Penulis menggunakan metode deskriptif kualitatif. Penulis fokus bagaimana menerapkan penggunaan game edukasi untuk meningkatkan hapalan angka 1-20 di Tk diponegoro surabaya. Penulis melakukan observasi selama 3x pertemuan. Setiap pertemuan mereka memainkan game edukasi yang berbeda namun dengan isi materi yang sama. Subjek penelitian adalah TK Diponegoro yang berjumlah 20 siswa. Hasil penelitian menunjukkan bahwa siswa sangat antusias dalam belajar menghapal angka 1-20 serta meningkatkan kemampuan motorik halus anak.
Kata Kunci: game edukasi, hapalan, angka 1-2
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