scholarly journals Role of Si and C Impurities in Yellow and Blue Luminescence of Unintentionally and Si-Doped GaN

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1026 ◽  
Author(s):  
Feng Liang ◽  
Degang Zhao ◽  
Desheng Jiang ◽  
Zongshun Liu ◽  
Jianjun Zhu ◽  
...  
Keyword(s):  
Chemical Vapor ◽  
Blue Luminescence ◽  
Acceptor Doping ◽  
Yellow Luminescence ◽  
Carbon Impurity ◽  
Si Doping ◽  
Close Relationship ◽  
Si Doped ◽  
The Relationship

Both yellow luminescence (YL) and blue luminescence (BL) bands of GaN films have been investigated for decades, but few works report the relationship between them. In this study, two sets of GaN samples grown via metalorganic chemical vapor deposition (MOCVD) were investigated. A close relationship was found between the YL and BL bands for unintentionally doped GaN and Si-doped GaN samples, both of which were grown without intentional acceptor doping. It was found that the intensity ratio of blue luminescence to yellow luminescence (IBL/IYL) decreases sharply with the increase in carbon impurity concentration, even though both IBL and IYL increase obviously. It was also found that IBL/IYL decreases sharply with the increase in Si doping concentration. It is suggested that the C and Si impurities play important role in linkage and competition of the blue and yellow luminescence.

scholarly journals PERAN PENYULUH PERTANIAN DALAM PENERAPAN TEKNOLOGI BUDIDAYA TOMAT (Lycopersicun esculentum L.) DI DESA LOLENG KECAMATAN KOTA BANGUN KABUPATEN KUTAI KARTANEGARA (The Role of Agricultural Extension in the Application of Cultivation Technology of Tomato (Lycopersicun esculentum L.) in Loleng Village Kota Bangun Subdistrict Kutai Kartanegara District)

2018 ◽  
Vol 1 (1) ◽  
pp. 25
Author(s):  
NIKE WIDURI ◽  
MIDIANSYAH EFFENDI ◽  
HERSON HERSON
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Agricultural Extension ◽  
Average Score ◽  
High Position ◽  
Close Relationship ◽  
Cultivation Technology ◽  
Important Position ◽  
The Relationship

This study aimed to know the role of agricultural extension in the development of tomato cultivation, the application level of tomato cultivation technology, and the relationship between the role of agricultural extension.  The sampling method in this study was stratified random sampling. The data were analyzed by using Rank Spearman. The results showed that the role of agricultural extension in the technology of tomato cultivation was very important position with an average score of 39.16, the level of application of tomato cultivation technology was in a high position with an average score of 45.47, there is a close relationship between the role of agricultural extension with the application level of tomato cultivation technology.

SELF-DISCLOSURE AND FRIENDSHIP IN JUNIOR HIGH SCHOOL STUDENTS

2002 ◽  
Vol 30 (5) ◽  
pp. 515-525 ◽  
Author(s):  
Rumi Matsushima ◽  
Kunio Shiomi
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Junior High School Students ◽  
School Students ◽  
Self Disclosure ◽  
Close Relationship ◽  
The Relationship

Close relationship during adolescence plays an important role in the young person's overall psychological development. As the most important factor about the development of a close relationship, many studies have emphasized the role of self-disclosure. In this study, the relationship between self-disclosure and friendship in adolescence was examined.Two scales about self-disclosure and friendship were administered to 454 junior high school students. The types of friendship in early adolescence were explored, and the relationship between types of friendship and self-disclosure was examined.

Surface Energy-mediated Protein and Osteoblast Responses on Nanostructured Stiff Surfaces

2012 ◽  
Vol 1486 ◽  
Author(s):  
Lei Yang ◽  
Maswazi Sihlabela ◽  
Brian W. Sheldon ◽  
Thomas J. Webster
Keyword(s):  
Surface Energy ◽  
Chemical Vapor ◽  
Cellular Responses ◽  
Enzyme Linked Immunosorbent Assay ◽  
Plasma Chemical ◽  
Nanostructured Surfaces ◽  
Plasma Chemical Vapor Deposition ◽  
And Migration ◽  
The Relationship

ABSTRACTNanostructured surfaces have demonstrated extraordinary capacity to influence protein adsorption and cellular responses, although the mechanisms behind such capacity are still not clear to date. In the present study, the role of surface energy associated with nanostructured stiff surfaces in modulating fibronectin and consequently osteoblast (OB, bone forming cells) responses was investigated. Nanocrystalline diamond (NCD) and submicron crystalline diamond (SMCD) films with controllable surface energy were prepared by microwave-enhanced plasma chemical vapor deposition (MPCVD) techniques. Fibronectin adsorption on the diamond films with varied surface energy values was measured via the enzyme-linked immunosorbent assay (ELISA) and the relationship between the surface energy and fibronectin adsorption was studied. OB aggregates (each containing 30∼50 cells) on the NCD with varied surface energy values were also studied. The results indicated that fibronectin adsorption on nanostructured surfaces was closely related to both surface energy and material microstructures, and osteoblast spreading and migration on stiff nanosurfaces are surface energy-driven processes.

scholarly journals PERANAN SUASANA KERJA TERHADAP KEINGINAN PINDAH KERJA PADA KARYAWAN PT HASNUR JAYA UTAMA

Jurnal Ecopsy ◽  
2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Maya Irka Anggriani ◽  
Hemy Heryati Anward ◽  
Rooswita Santia Dewi
Keyword(s):  
Job Satisfaction ◽  
Correlation Coefficient ◽  
Random Sampling ◽  
Linear Regression Analysis ◽  
Coefficient Of Determination ◽  
Simple Linear Regression ◽  
Close Relationship ◽  
The Relationship ◽  
Selection Of

Penelitian ini bertujuan untuk mengetahui ada tidaknya peranan suasana kerja terhadap keinginan pindah kerja karyawan. Populasi pada penelitian ini yaitu seluruh karyawan PT. Hasnur Jaya Utama. Jenis pengambilan sampel yang dilakukan pada penelitian ini adalah Purposive Random Sampling yaitu pemilihan sampel secara acak sesuai dengan karakteristik yang ditentukan berdasarkan tujuan penelitian yang berjumlah 60 orang.  Sedangkan metode pengumpulan data dengan menggunakan skala suasana kerja, skala kepuasan kerja dan kuesioner keinginan pindah kerja. Dalam penelitian ini analisis data menggunakan analisis regresi linear sederhana. Hasil analisis peranan suasana kerja terhadap kepuasan kerja, diperoleh koefisien korelasi R sebesar 0,759 artinya hubungan suasana kerja dan kepuasan kerja erat. Ditemukan juga koefisien determinasi (R2) yang menunjukkan peranan suasana kerja terhadap kepuasan kerja sebesar 57,5% dan untuk analisis t observasi (8,882) > t tabel (1,672) menunjukkan  ada peranan suasana kerja terhadap kepuasan kerja. Kemudian, hasil analisis peranan kepuasan kerja terhadap keinginan pindah kerja ditemukan koefisien regresi R (0,680) artinya kepuasan kerja dan keinginan pindah kerja memiliki hubungan yang cukup erat. Selanjutnya, diperoleh juga (R2) yang menunjukkan peranan kepuasan kerja terhadap keinginan pindah kerja sebesar 46,3%  dan   untuk  analisis   t   observasi (-7,069) t tabel (1,672) menunjukkan ada peranan kepuasan kerja terhadap keinginan pindah kerja dengan signifikan negatif. Berdasarkan hasil penelitian tersebut maka dapat ditarik kesimpulan bahwa suasana kerja dan kepuasan kerja pada karyawan perlu diperhatikan oleh perusahaan agar dapat meminimalkan keinginan pindah kerja karyawan. Kata Kunci: Suasana kerja, kepuasan kerja, keinginan pindah kerjaThis study purposed to determine whether there is the influence of the working atmosphere to intention turnover on employees. The population in this study are all employees of PT. Hasnur Jaya Utama. Type of sampling conducted in this study is Purposive Random Sampling is the selection of a random sample according to the characteristics that are determined based on the research goals of 60 people. The methods of data collection by using the scale of the working atmosphere, the scale of job satisfaction and intention turnover questionnaire. In this study analyzes the data using simple linear regression analysis. The results of the analysis of the influence of working atmosphere to job satisfaction, the correlation coefficient R of 0.759 means that the relationship working atmosphere and job satisfaction is quite close. Also found the coefficient of determination (R2) which indicates the role of working conditions on job satisfaction at 57.5% and for the analysis of observation (8.882) > t table (1.672) which indicates means that the influence of the atmosphere to job satisfaction. Then, the results of the analysis of the influence of job satisfaction to intention turnover a correlation coefficient R (0.680) means that job satisfaction and intention turnover to have a close relationship. Furthermore, also obtained (R2 ) which indicates the role of job satisfaction to intention turnover of 46,3% and for the analysis of t observation (-7.069) > t table (1.672) which indicates means that the influence of job satisfaction to intention turnover with a significant negative . Based on these results it can be concluded that the working atmosphere and job satisfaction in employees need to be considered by the company in order to minimize intention turnover ob the employees. Keywords: The working atmosphere, job satisfaction, intention turnover.

scholarly journals PERAN PENYULUH PERTANIAN LAPANGAN DALAM PENGEMBANGAN GABUNGAN KELOMPOK TANI DI DESA WONOSARI KECAMATAN SEPAKU KABUPATEN PENAJAM PASER UTARA (The Role of Field Agriculture Instructor in the Development of Farmers Groups Association in Wonosari Village Sepaku Subdistrict Penajam Paser Utara District)

2020 ◽  
Vol 3 (1) ◽  
pp. 17
Author(s):  
ERICA FATMITA RAMADANI ◽  
DINA LESMANA ◽  
MIDIANSYAH EFFENDI
Keyword(s):  
Data Analysis ◽  
Chi Square ◽  
Close Relationship ◽  
The Relationship ◽  
Research Show

The purposes of this research were to know the role of Field Agriculture Instructor (FAI) in the development of Farmers Groups Association (FGA), the development of FGA, and the relationship between the role of FAI and the development of FGA. This research was conducted during three months from August to October 2015. The role of FAI in the development of FGA was analyzed by using Chi Square. The relationship between the role of FAI and the development of FGA was test by using Rank Spearman.   The results of this research show that the role of FAI shows with the score of 39.27 and the development of FGA with the score of 36.79. The results of data analysis show χ2count of 8.06 and χ2table (α = 0.05) of 3.84 also tcount of  3.92 and ttable (α = 0,05) of 1.68 so that can be concluded that there is a close relationship between the role of FAI and the development of FGA in Wonosari Village, Sepaku Subdistrict, Penajam Paser Utara District.

Relationship Connection: A Redux on the Role of Minding and the Quality of Feeling Special in the Enhancement of Closeness

2009 ◽  
pp. 384-392
Author(s):  
John H. Harvey ◽  
Brian G. Pauwels
Keyword(s):  
Behavior Patterns ◽  
Self Disclosure ◽  
Close Relationship ◽  
History Of ◽  
Future Direction ◽  
Ending Process ◽  
And Behavior ◽  
The Relationship

Achieving constructive relationship connections is an important step as an objective of positive psychology. In the context of a culture of dissolution in close relationships, minding serves as an antidote to the demise of feelings of closeness overtime. In this paper, we argue that minding the close relationship is a powerful pathway to developing and enhancing closeness. Minding is a combination of thought and behavior patterns that interact to create stability and feelings of closeness. Minding is formally defined as a reciprocal knowing process that occurs nonstop throughout the history of the relationship and that involves a complex package of interrelated thoughts, feelings, and behaviors. The components of minding are knowing and being known, achieved through reciprocal self-disclosure; attribution that is realistic about causality, but that also gives one's partner the benefit of doubt in questionable circumstances; acceptance of what one discovers in the knowing process and respect for one's partner revealed in this process; and reciprocity and continuity. The final component emphasizes the fact that minding must be done by both partners and that it is a never-ending process. The paper also describes other contemporary conceptions to which minding is closely related and addresses future direction for research on the minding process.

THE ANALYSIS OF THE THOUGHTS ON THE INTERDEPENDENCE OF HUMAN LANGUAGE, SPIRIT, AND CONSCIOUSNESS

2020 ◽  
Vol 2 (3) ◽  
pp. 228-232
Author(s):  
Zuxro Akbarova ◽  
Keyword(s):  
Mother Tongue ◽  
Self Awareness ◽  
Human Language ◽  
Human Spirit ◽  
Actual Structure ◽  
Human Thought ◽  
The World ◽  
Close Relationship ◽  
The Relationship

This article highlights the opinions on the close interdependence of the language, psyche and consciousness of human. The language is not only the expression of human spirit, but also it is an actual structure. Moreover, we analyzed the close relationship between the language and the human. Furthermore, the article clarifies issues, such as the role of language, especially mother tongue, in the human's self-awareness, the importance of language in the development of human thought, that is, it is impossible to exist the relationship between man and the world without the language,furthermore, the place of language in the relation between human and the world

Transient Capacitance Characterization of Deep Levels in Undoped and Si-Doped GaN

2003 ◽  
Vol 764 ◽  
Author(s):  
S. Nakamura ◽  
P. Liu ◽  
M. Suhara ◽  
T. Okumura
Keyword(s):  
Chemical Vapor ◽  
Deep Levels ◽  
Yellow Luminescence ◽  
Capacitance Measurements ◽  
Transient Capacitance ◽  
Si Doped ◽  
Transient Spectroscopy ◽  
Capacitance Transient ◽  
Isothermal Capacitance Transient Spectroscopy

AbstractThe deep levels in both undoped and Si-doped GaN layer grown by metalorganic chemical vapor deposition have been characterized by photocapacitance and transient capacitance spectroscopy. The increase in the photocapacitance was observed in both GaN samples in the range of 1.8 to 2.2 eV. This is due to the photoionization of carriers from the deep levels associated with the yellow luminescence (YL). In addition, the transient capacitance measurements after the photoionization were also performed in the range of 1.8 to 3.4 eV. The notable transient of capacitance was observed at the photon energies of about 2.1 and 3.4 eV, the former could be associated with the change in the charge state of the YL center and latter might stem from some other defects capturing photogenerated carriers. By using the isothermal capacitance transient spectroscopy (ICTS) analysis, the ICTS peaks due to the deep levels associated with YL were detected at about t = 150 s in both GaN samples. In addition, another ICTS peak was detected only in the Si-doped GaN samples. It is considered that this peak is associated with the deep levels deeper than YL levels and the deeper levels originate from defects induced by Si doping.

scholarly journals Optical Properties of Si-DOPED AlxGa1−xN/AlyGa1−yN (x=0.24−0.53, y=0.11) Multi-Quantum-Well Structures

1999 ◽  
Vol 4 (S1) ◽  
pp. 405-410
Author(s):  
H. Hirayama ◽  
Y. Aoyagi
Keyword(s):  
Quantum Well ◽  
Chemical Vapor ◽  
Organic Chemical ◽  
Quantum Well Structures ◽  
Si Doping ◽  
Active Layers ◽  
Metal Organic ◽  
Si Doped ◽  
Pl Emission ◽  
Multi Quantum Well

We demonstrate strong ultraviolet (UV) (280-330nm) photoluminescence (PL) emission from multi-quantum-well (MQW) structures consisting of AlGaN active layers fabricated by metal-organic chemical-vapor-deposition (MOCVD). Si-doping is shown to be very effective in order to enhance the PL emission of AlGaN QWs. We found that the optimum values of well thickness and Si-doping concentration of AlxGa1−xN/AlyGa1−yN (x=0.24−0.53, y=0.11) MQW structure for efficient emission were approximately 3nm and 2×1019cm−3, respectively. In addition, the PL intensities of AlGaN, GaN and InGaN quantum well structures are compared. We have found that the PL emission at 77K from a Al0.53Ga0.47N/Al0.11Ga0.89N MQW is as strong as that of InGaN QWs.

Glucose transporter expression and functional role of hexokinase in insulin biosynthesis in mouse beta TC3 cells

1995 ◽  
Vol 269 (2) ◽  
pp. C480-C486 ◽  
Author(s):  
S. Nagamatsu ◽  
Y. Nakamichi ◽  
H. Sawa
Keyword(s):  
Glucose Transporter ◽  
Immunoblot Analysis ◽  
Insulin Biosynthesis ◽  
Hexokinase Activity ◽  
Glut 1 ◽  
Close Relationship ◽  
The Relationship ◽  
Effect Of Glucose ◽  
Transporter Expression

It was previously reported that insulin biosynthesis in mouse beta TC3 cells was regulated by glucose (Nagamatsu, S., and D. F. Steiner. Endocrinology 130: 748-754, 1992). In the present study, we examined the effect of glucose on the glucose transporter expression and hexokinase activities and determined the relationship between them and glucose-stimulated insulin biosynthesis in beta TC3 cells. Reverse transcriptase-polymerase chain reaction and Northern blot analysis revealed that beta TC3 cells expressed GLUT-1 and GLUT-3 glucose transporter mRNAs, but not GLUT-2. The levels of GLUT-1 and GLUT-3 mRNAs were not affected by glucose (0 or 11 mM glucose) over a period of 48 h. Immunoprecipitation of metabolically labeled beta TC3 cells with specific antibodies against GLUT-1 or GLUT-3 proteins revealed no effect of glucose on the biosynthesis of glucose transporters. Hexokinase [low Michaelis constant (Km) hexokinase] activity from cells incubated in 11 mM glucose for 48 h increased nearly twofold compared with cells maintained in 0 mM glucose, although the amount of cellular hexokinase protein detected by immunoblot analysis was unchanged between 0 and 11 mM glucose conditions. Glucokinase (high Km hexokinase) activity, in contrast, was not affected by glucose. Preincubation of beta TC3 cells with 2-deoxyglucose to inhibit hexokinase, thereby inhibiting all glycolysis, resulted in the decrease of glucose-stimulated insulin biosynthesis. Thus, in mouse beta TC3 cells that do not express GLUT-2, there is a close relationship between hexokinase activity and glucose-stimulated insulin biosynthesis, but not between the glucose transporter and glucose-stimulated insulin biosynthesis.

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