About Me

Material technology is an industry that has changed our lives. In a very short period it has changed the way we have looked at things since centuries. It is one industry that is going to shape our future for centuries to come.

My research interest is study the properties of surfaces at the atomic level especially material technology for electronic devices during my graduate school years. It was the time when technology had begun to make an impact on the lives of people in the world.

Therefore, I believe that my dream will be come true. One of my chance is pursuing PhD study. Actually, my decision to pursue doctorate study is underscored by my desire to be a part of academic career and I hope this process  will offers the flexibility needed for such a vast and rapidly changing my field.

The details of my CV is shown below

Office and Address:

Permanent Address :

Semiconductor Physics Laboratory, Department of Physics, University of Sebelas Maret, Jl. Ir. Sutami No. 36A Kentingan, Surakarta 57126, Central Java, Indonesia, Phone:(+62)-271-663375,Fax:(+62)-271-663375,(+62)-271-663375,Email: adriyanto_feri@yahoo.com or feri@fisika-uns.org

Present Address :

Advanced Material and Devices Laboratory, Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, #1, Ta-Hseuh Road, Tainan 70101, Taiwan, Republic of China, Mobile: (+886)-911930546, E-mail: n2894701@mail.ncku.edu.tw

Mailing Address:

Dusun Gejawan Wetan RT 02, RW 36, Desa Balecatur, Kecamatan Gamping, Kabupaten Sleman 55294, Daerah Istimewa Jogjakarta, Indonesia, Mobile:(+62)-8175426328.

Sex: Male.

Marital Status:

Married (has one wife; Supriyani & two childrens; Yusuf Athallah Adriyansyah & Yunus Aufa Adriyansyah).

Ethnic & Nationality:

Javanese, Indonesian.

Academic Background:

1.

Fall 1996 – September 1998: Institute of Technology Bandung, Indonesia. Master of Science in Semiconductor Physics, Department of Physics. Scholarship: P2TA Scholarship, Directorate of Higher Education, Department of National Education, Indonesia. Master thesis title:Optical and Electrical Properties of ZnO:B Thin Films Grown by Metalorganic Chemical Vapor Deposition. Master adviser: Wilson W Wenas, PhD. Master committee members: Professor M Barmawi, PhD, Wilson W Wenas, PhD (chair), and Toto Winata, PhD (secretary).

2.

Fall 1995 – End of Spring 1995: Institute of Technology Bandung, Indonesia. Pre-Master (non-degree) in Physics, Department of Physics with supported P2TA Scholarship, Directorate of Higher Education, Department of National Education, Indonesia. This program was designed as bridging program to master study. The student must be followed minimum 18 credits in physics course.

3.

Fall 1987 – May 1994: Institute of Teacher Education and Educational Sciences, Yogyakarta, Indonesia.

Bachelor of Science in Physics Educations, Department of Education Physics. For graduate to Physics Education Program in Institute of Teacher Education and Educational Sciences, Yogyakarta, Indonesia, every student must be to attend two kinds of undergraduate final project such as bachelor thesis in physics education fields, and the final project laboratory in the field of physics experiment. Bachelor thesis title: The Understanding of the Concepts and Misconceptions on Power and Movement of Senior Secondary School Students in Tasikmalaya Administrative City. Bachelor advisor: Drs. Ali Waris and Drs. Mundilarto, MPd. Bachelor committee members: Drs. IGN. Made Berata, Drs. Suharyanto, MPd, Drs. Ali Waris (chair) and Drs. Mundilarto, MPd (secretary).

 

Final project laboratory title:

 

a.

Construction of computerized base mathematics oscillation machine for gravitational acceleration measurement.

 

b.

Effect of vapor mass on thermal energy of liquid. Final project laboratory committee advisers: Drs. Kartoyo and Drs. Mundilarto, MPd

 

 

 

Awards:

1.

The best lecturer award 2005, Faculty of Mathematics and Natural Sciences, University of Sebelas Maret, Surakarta, Indonesia.

2.

The 4th rank award 2005 of the best lecturer, University of Sebelas Maret, Surakarta, Indonesia.

3.

The best presenter award of the final report presentation seminar research of basic Sciences 2003, Directorate of Higher Education, Department of National Education, Indonesia.

 

 

 

Scholarship and Assistantship:

1.

Research Assistantship for PhD student:

 

This research assistantship is award to international PhD student in Advanced Material and Devices Laboratory, Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China.

 

Year: Fall 2005 – present.

 

Place: Advanced Material and Devices Laboratory, Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China.

 

Related topic: Wide band gap material based ZnO and its application to flexible electronic devices.

 

Advisor: Dist. Professor Yeong-Her Wang, PhD.

2.

P2TA Scholarships for Master Student:

 

This scholarship is one of the scholarship programs for new lecturer position in state university in Republic of Indonesia, and will awarded to fresh graduate from Institute of Teacher Education and Educational Sciences for master study in the field of Semiconductor Physics.

 

Year: Fall 1996 – 1998.

 

Place: Department of Physics, Institute of Technology Bandung, Indonesia.

 

Advisor: Wilson W Wenas, PhD.

3.

P2TA Scholarships for Pre-Master Student:

 

This scholarship is one of the scholarship programs for new lecturer position in state university in Republic of Indonesia, and will awarded to fresh graduate from Institute of Teacher Education and Educational Sciences for pre-master study in the field of Physics.

 

Year: Fall 1995 – 1996.

 

Place: Department of Physics, Institute of Technology Bandung, Indonesia.

 

 

 

Research Grant:

1.

March 2006 – February 2008: “Pekerti” Research Grant.

 

Pekerti research grant is one of the highly competitive researches with collaborative schema between host institution Physics Material Laboratory, Physics Department, Sebelas Maret University and Material Electronic Laboratory, Physics Department, Gadjah Mada University. This research was supported from Directorate of Higher Education, Department of National Education, Indonesia.

 

Topic: A Controlling of Exciton Blocking Layer on the Organic Solar Cells Based on Phthalocyanine.

 

Amount of grant: USD 8,350/year for two years.

 

Position: member of researcher.

 

Partner team member: Dr. Eng. Kuwat Triyana (group leader) & Wega Trisunaryanti, PhD.

 

Host team member: Fahru Nurrosyid, MSi (group leader), Feri Adriyanto, MSi & Agus Supriyanto, MSi.

2.

March 2004 – February 2006: “Hibah Bersaing” research grant

 

“Hibah Bersaing” research grant is one of the highly competitive researches for support to applied research in university. This research was supported from Directorate of Higher Education, Department of National Education,Indonesia.

 

Topic: A Controlling of the Insulator Layer and the Surface Morphology on the New Solar Cells of Semiconductor-Insulator-Semiconductor of ZnO/InP for to Invent Solar Cells with the Low Cost and the High Efficiency.

 

Amount of grant: USD 4,000/year for two years.

 

Position: principle investigator. Research teams: Feri Adriyanto, MSi (group leader), & Agus Supriyanto, MSi.

3.

March 2003 – February 2004: Research grant for basic sciences.Research grant for basic sciences is one of the highly competitive researches for support to fundamental science research in university. This research was supported from Directorate of Higher Education, Department of National Education, Indonesia.

 

Topic: A Controlling of Ga2O3 Insulator Layer on the New ZnO/p-GaAs Solar Cells for to Invent Solar Cells with the High Efficiency.

 

Amount of grant: USD 2,300/year for one year.

 

Position: principle investigator.

 

Research teams: Feri Adriyanto, MSi (group leader), & Agus Supriyanto, MSi.

4.

March 2003 – February 2004: ITSF Science and technology research grant.

 

This is highly prestigious research program from Toray Foundation Inc. Japan for young researcher in Indonesia.

 

Topic: A Study into the Effects of Insulator Layer and Crystal Structure on High Efficiency-Low Cost in ZnO/GaAs Solar Cells.

 

Amount of grant: USD 3,900/year for one year.

 

Position: principle investigator.

 

Research teams: Feri Adriyanto, MSi (group leader), Agus Supriyanto, MSi, & Khairuddin, MPhil.

5.

March 2003 – February 2004: Applied research grant.

 

This research was support from Central Java Province, Republic of Indonesia. Topic: Growth and Characterization of Organic Solar Cells Based on Phthalocyanine:

 

Amount of grant: USD 2,800/year for one year.

 

Position: member of researcher.

 

Research teams: Ari Handono Ramelan, PhD (group leader), & Feri Adriyanto, MSi.

6.

August 2000 – July 2001: domestic collaborative research grant (DCRG).

 

DCRG is one of the highly competitive researches with collaborative schema between host institution Physics Material Laboratory, Physics Department, Sebelas Maret University and Semiconductor Research Laboratory, Physics Department, Institute of Technology Bandung. This research was supported from World Bank, University Research for Graduate Education batch V, Directorate of Higher Education, Department of National Education, Republic of Indonesia.

 

Topic: Growth and crystal structure analysis of ZnO thin films.
Amount of grant: USD 15,350/year for one year.

 

Position: principle investigator.

 

Partner team member: Wilson W Wenas, PhD (group leader).

 

Host team member: Feri Adriyanto, MSi (group leader), Dra. Riyatun, MSi & Drs. Usman Santosa, MS.

 

 

 

Field of Specialization:

1.

Fabrication of Transparent Conducting Oxide Material for Electronic and optoelectronic devices.

2.

II – VI Semiconductor-Based Thin Film.

3.

Growth and Characterization of Nanostructure Material for Applications to Electronic Devices.

4.

Smart material for Biosensor, Biochip and BioMEMS.

 

 

 

Courses Experience:

1.

Experiment Physics.

2.

Electricity and Magnetism.

3.

Solid State Physics.

4.

Introduction to Semiconductor Physics.

 

 

 

Work Experiences:

1.

Fall 2005 – present: Research assistant at Advanced Material and Devices Laboratory, Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan – Republic of China.

2.

August 2000 – July 2001: Research fellow on University Research for Graduate Education Project (URGE World Bank Grant) at Semiconductor Research Laboratory, Department of Physics, Institute of Technology Bandung, Indonesia.

3.

May 2000 – October 2000: Head of Physics Laboratory, Faculty of Mathematics and Natural Sciences, University of Sebelas Maret, Indonesia.

4.

July 1999 – present: Researcher and lecturer at Material Physics Laboratory, Department of Physics, University of Sebelas Maret, Indonesia.

5.

August 1996 – September 1998: Assistant researcher at Semiconductor Research Laboratory, Department of Physics, Institute of Technology Bandung, Indonesia.

 

 

Patent:

Feri Adriyanto, Ari Handono Ramelan, Agus Supriyanto, and Ninik Setyowati, New technique for high-efficiency solar cells by inserted Ga2O3 insulator layer on semiconductor-insulator-semiconductor ZnO/GaAs solar cells (accepted)

 

 

 

Professional Activities:

1.

Referee for the Saintika Journal, Faculty of Mathematics and Natural Sciences, University of Sebelas Maret, Surakarta, Indonesia.

2.

Local Committee of Japan – Indonesia Joint Seminar on Photovoltaic, Institute of Technology Bandung, Indonesia, 21st November 1997.

3.

Vice Chairman of the 1st Kentingan Physics Forum, International Seminar on Physics and Physics Education, University of Sebelas Maret, Surakarta, Indonesia, 23rd to 24th July 2001.

4.

Principal Investigator :

 

a.

“”Hibah Bersaing” Research Grant 2004 from Directorate of Higher Education, Department of National Education, Indonesia.

 

b.

Research Grant for Basic Sciences 2003 from Directorate of Higher Education, Department of National Education, Indonesia.

 

c.

Science and Technology Research Grant from Indonesia Toray Science Foundation Japan 2003.

 

d.

Domestic Collaborative Research Grant 2000, Directorate of Higher Education, Department of National Education, Indonesia.

 

 

 

Professional Membership:

1.

1999 – present : member of Indonesian Physics Society (HFI).

2.

2005 – Present: member of Indonesian Society on Electrical, Electronics and Communications and Information (IECI).

 

 

 

Computer and Other Skills:

1.

Hands-on Vacuum Evaporation, RF Sputtering, Liquid Phase Deposition, Vacuum Furnace, Furnace Electric, and metalorganic chemical vapor deposition technique.

2.

Hands-on characterization equipment: X-ray diffraction, I – V characterization, and monochromator double beam.

3.

Matlab, Maple, and Microcalc Origin Programming.

 

 

 

Publications:

List of Publication since at National Cheng Kung University, Taiwan

Paper Presented in International Conference:

1.

Feri Adriyanto, Po-Wen Sze and Yeong-Her Wang, ZnO Nanorods on Plastic Substrate from Zinc Nitrate Hexahydrate and Hexamethylenetetramine Solution. the 9th International Conference on Solid-State and Integrated-Circuit Technology, October 20-23, 2008, Beijing, People Republic of China

 

 

 

List of Publication since at Sebelas Maret University, Indonesia

Paper Presented in International Conference:

2.

Feri Adriyanto, and Agus Supriyanto, “A Controlling of the Insulator Layer and the Surface Morphology on the New Solar Cells of Semiconductor-Insulator-Semiconductor of ZnO/InP for to Invent Solar Cells with the Low Cost and the High Efficiency”, The 3rd Kentingan Physics Forum, International Seminar on Physics and Physics Education, University of Sebelas Maret, Surakarta, Indonesia, 24th September 2005.

3.

Agus Supriyanto, and Feri Adriyanto, “A Study into the effects of Insulator Layer and Crystal Structure on High Effeciency-Low Cost in ZnO/GaAs Solar Cells”, The 3rd Kentingan Physics Forum, International Seminar on Physics and Physics Education, University of Sebelas Maret, Surakarta, Indonesia, 24th September 2005.

4.

Feri Adriyanto, Usman Santosa, Riyatun and Wilson W. Wenas, “Highly Oriented Zinc Oxide Thin Films Prepared by Metalorganic Chemical Vapor Deposition Technique”, The 1st Kentingan Physics Forum, International Seminar on Physics and Physics Education, University of Sebelas Maret, Surakarta, Indonesia, 23rd to 24th July 2001.

5.

Riyatun, Feri Adriyanto, Usman Santosa and Wilson W. Wenas, “Effect of B-doping on the Electrical Properties of Zinc Oxide Thin Films”, The 1st Kentingan Physics Forum, International Seminar on Physics and Physics Education, University of Sebelas Maret, Surakarta, Indonesia, 23rd to 24th July 2001.

6.

Usman Santosa, Feri Adriyanto, Riyatun and Wilson W. Wenas, “Transparent Conducting B-doped Zinc Oxide Thin Films Prepared by Metalorganic Chemical Vapor Deposition Method”, The 1st Kentingan Physics Forum, International Seminar on Physics and Physics Education, University of Sebelas Maret, Surakarta, Indonesia, 23rd to 24th July 2001.

 

 

 

National Journal:

7.

Feri Adriyanto, “The effect of i-layer thickness on the distribution of carrier and short-circuit photocurrent of new transparent deep-UV photodetector Based on CuZnO”, Indonesian Journal of Physics, January 2008, Bandung, Indonesia (submitted).

8.

Feri Adriyanto dan Wilson W Wenas, “Sifat Optik dan Listrik dari Lapisan Tipis ZnO:B yang Ditumbuhkan dengan Metode Metalorganic Chemical Vapor Deposition”, Jurnal Fisika Indonesia April 2003, Department of Physics – University of Gadjah Mada, Yogyakarta.

9.

Feri Adriyanto, “Perakitan Reaktor Metalorganic Chemical Vapor Deposition dan Aplikasinya dalam Pembuatan Lapisan Tipis Semikonduktor”, Jurnal Gema Teknik No 2 Tahun V Juli 2002, Faculty of Engineering – University of Sebelas Maret, Surakarta.

10.

Feri Adriyanto, “Studi Rasio Komposisi Massa Pereaksi II – VI Pada Lapisan Tipis ZnO Yang Ditumbuhkan Dengan Metode Metalorganic Chemical Vapor Deposition, Berkala Ilmiah MIPA No 1 Tahun XII 2002, Faculty of Mathematics and Natural Sciences – University of Gadjah Mada, Yogyakarta.

11.

Feri Adriyanto, Usman Santosa dan Riyatun,” Sifat Optik dan Struktur Dari Lapisan Tipis ZnO:B Yang Ditumbuhkan Dengan Teknik Metalorganic Chemical Vapor Deposition”, Jurnal Saintika Vol. 1 No 6 – Maret 2002, Faculty of Mathematics and Natural Sciences – University of Sebelas Maret, Surakarta.

 

 

 

Paper Presented in National Conferences:

12.

Feri Adriyanto, “Model Simulasi Pengaruh Lapisan Transparent Conducting Zinc Oxide Terhadap Sifat Listrik Pada Sel Surya ZnO/a-Si”, Seminar Nasional MIPA, Faculty of Mathematics and Natural Sciences – Insitute of Technology Bandung, Indonesia, 6rd to 7rd October 2004.

13.

Nunik Setyowati, Ari Handono. Ramelan and Feri Adriyanto “Pengaruh Temperatur Oksidasi terhadap Struktur Kristal dan Ukuran Butir Kristal Lapisan Oksida Hasil Oksidasi pada Wafer n-GaAs”, Seminar Nasional MIPA, Faculty of Mathematics and Natural Sciences – Insitute of Technology Bandung, Indonesia, 6rd to 7rd October 2004.

14.

Ahmad Hasyim, Agus Supriyanto, and Feri Adriyanto, “Pengaruh Temperatur Annealing Terhadap Sifat Listrik dan Struktur Kristal dari Lapisan Tipis Hasil Evaporasi Pellet ZnO”, the first Jogjakarta Regional Conference Physics, Department of Physics, University of Gadjah Mada, Jogjakarta, Indonesia, 12th September 2004.

15.

Feri Adriyanto, “Beberapa Parameter Eksperimen dalam Penumbuhan Lapisan Tipis ZnO dengan Metode MOCVD”, the first Jogjakarta Regional Conference Physics, Department of Physics, University of Gadjah Mada, Jogjakarta, Indonesia, 12th September 2004.

16.

Feri Adriyanto, Ahmad Hasyim, Agus Supriyanto, Ari Handono Ramelan, Nunik Nuryati, Ninik Setyowati, and Riyatun, “ Penumbuhan Lapisan Tipis ZnO dengan Metode Vacuum Evaporation dan Karakterisasi Orientasi Kristal dan Sifat Optiknya” Seminar Nasional Penelitian, Pendidikan dan Penerapan MIPA, Faculty of Mathematics and Natural Sciences – Universitas Negeri Yogyakarta, Yogyakarta, Indonesia, 2nd August 2004.

17.

Tri .Budi Angantyo, Feri Adriyanto and Darmanto, “Mekanisme Probabilitas Tunneling Pada Thin Films Light Emitting Diode a-SiC Sambungan p-i-n”, Seminar Nasional Penelitian, Pendidikan dan Penerapan MIPA, Faculty of Mathematics and Natural Sciences – Universitas Negeri Yogyakarta, Yogyakarta, Indonesia, 2nd August 2004.

18.

Feri Adriyanto, “Identifikasi Parameter-parameter yang Berpengaruh dalam Penumbuhan Lapisan Tipis ZnO dengan Metode MOCVD”, Seminar Nasional Penelitian Dasar Ilmu Pengetahuan dan Teknologi, Puslitbang Teknologi Maju BATAN Yogyakarta, Yogyakarta, Indonesia, 27th June 2002.

19.

Feri Adriyanto, Usman Santosa dan Riyatun, “Efek Doping Boron Terhadap Sifat Optik dan Struktur dari Lapisan Tipis ZnO Yang Ditumbuhkan Dengan Metode Metalorganic Chemical Vapor Deposition”, Seminar Nasional Penelitian Dasar Ilmu Pengetahuan dan Teknologi, Puslitbang Teknologi Maju BATAN Yogyakarta, Yogyakarta, Indonesia, 27th June 2002.

20.

Feri Adriyanto, Usman Santosa, Riyatun dan Wilson W. Wenas, “Pengaruh Komposisi Massa Pereaksi II – VI Terhadap Struktur Kristal dan Ukuran Butir Kristal Lapisan Tipis ZnO yang Ditumbuhkan dengan Metode MOCVD”, Seminar Nasional Fisika dan Aplikasinya Tahun 2002, Department of Physics – Institute of Technology Sepuluh November Surabaya, Surabaya, Indonesia, 24th to 25th April 2002.

 

 

List of Publication since at Institute of Technology Bandung, Indonesia

International Journal:

21.

Wilson W. Wenas, Feri Adriyanto and Hanny Sangian, “Transparent Conducting Zinc-oxide Thin Films for Solar Cells Grown by Metalorganic Chemical Vapor Deposition Technique”, IEEE Proc. 1999. p. 322.

Paper Presented in International Conference:

22.

Wilson W. Wenas, A. Setiawan, Feri Adriyanto, and H. Sangian, “High Growth Rate Transparent Conducting Zinc-Oxide Thin Films Prepared by Metalorganic Chemical Vapor Deposition Technique for Device Applications”, The Conference Optoelectronic and Microelectronic Materials and Devices (COMMAD 1998), Perth, Western Australia, 14th to 16th December 1998.

23.

Feri Adriyanto, Usman Santosa, Riyatun and Wilson W. Wenas, “Effect of B-doping on the Crystal Structural and the Grain Size of Zinc Oxide Thin Films”, The Fourth Conference on Electrical, Electronics, Communication and Information (CECI 2001), University of Indonesia, Indonesia, 7th to 8th March 2001.

24.

Feri Adriyanto, Usman Santosa, Riyatun and Wilson W. Wenas, “Effect of B-doping on the Crystal Structural and Optical Properties of Zinc Oxide Thin Films for Photonic Device Applications”, International Symposium on Modern Optics and Its Applications, Institute of Technology Bandung, Indonesia, 8th to 9th February 2001

 

 

 

National Journal

25.

Feri Adriyanto, Usman Santosa, Riyatun and Wilson W. Wenas, “Effect of B-doping on the Crystal Structural and Optical Properties of Zinc Oxide Thin Films for Photonic Device Applications”, Proceeding Institute of Technology Bandung, Vol 1 No 33, 2001, Research Centre – Institute of Technology Bandung, Bandung.

26.

Feri Adriyanto dan Wilson W. Wenas, “Sifat Optik Lapisan Tipis Semikonduktor Terdegenerasi ZnO”, Jurnal Kontribusi Fisika Indonesia Volume 11 No. 4, 2000, Department of Physics – Institute of Technology Bandung, Bandung.

 

 

Paper Presented in National Conferences:

27.

Feri Adriyanto dan Wilson W. Wenas, “Sifat Optik Lapisan Tipis Semikonduktor Terdegenerasi ZnO”, Seminar Tahunan Fisika Tahun 2000, Department of Physics, Institute of Technology Bandung, Bandung, Indonesia, 11th August 2000.

28.

Wilson W. Wenas, Agus Setiawan, Feri Adriyanto dan Hanny Sangian, “Model Mekanisme Reaksi Lapisan Tipis ZnO yang Ditumbuhkan dengan Metode Metalorganic Chemical Vapor Deposition”, Simposium Fisika Nasional XVII dan AAPPS Seminar on Physics of Materials, Yogyakarta, Indonesia, 8th to 10th December 1998.

 

 

Research Report:

29.

Feri Adriyanto and Agus Supriyanto, “A Controlling of the Insulator Layer and the Surface Morphology on the New Solar Cells of Semiconductor-Insulator-Semiconductor of ZnO/InP for to Invent Solar Cells with the Low Cost and the High Efficiency, The 1st Year Report of “Hibah Bersaing” Research 2005, Directorate of Higher Education, Department of National Education, Indonesia (unpublished).

30.

Feri Adriyanto, Agus Supriyanto, and Khairuddin, “A Study into the Effects of Insulator Layer and Crystal Structure on High Efficiency-Low Cost in ZnO/GaAs Solar Cells”, Indonesia Toray Science Foundation 2003, Toray Foundation Japan, 2004 (unpublished).

31.

Feri Adriyanto, and Riyatun, “A Controlling of Ga2O3 Insulator Layer on the New ZnO/p-GaAs Solar Cells for to Invent Solar Cells With the High Efficiency”, Final Report of Research Grant for Basic Sciences 2003, Directorate of Higher Education, Department of National Education, Indonesia, 2004 (unpublished).

32.

Feri Adriyanto, Usman Santosa, and Riyatun, “Growth and Crystal Structure Analysis of ZnO Thin Films”, Domestic Collaborative Research Grant 2000 Report, URGE Batch V Directorate of Higher Education, Department of National Education, Indonesia, 2001 (unpublished).