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- HENDRA GUNAWAN, M. MASHADI
- 2001

Given ann-normed space withn≥ 2, we offer a simple way to derive an (n−1)norm from the n-norm and realize that any n-normed space is an (n−1)-normed space. We also show that, in certain cases, the (n−1)-norm can be derived from the n-norm in such a way that the convergence and completeness in the n-norm is equivalent to those in the derived (n− 1)-norm.… (More)

- HENDRA GUNAWAN, SUKRAN KONCA, MOCHAMMAD IDRIS
- 2013

We revisit the space l of p-summable sequences of real numbers. In particular, we show that this space is actually contained in a (weighted) inner product space. The relationship between l and the (weighted) inner product space that contains l is studied. For p > 2, we also obtain a result which describe how the weighted inner product space is associated to… (More)

- Hendra Gunawan
- Periodica Mathematica Hungarica
- 2002

- Kusworo Adi, Andriyan Bayu Suksmono, Tati L. R. Mengko, Hendra Gunawan
- IEEE Geosci. Remote Sensing Lett.
- 2010

Phase unwrapping (PU) is a process to obtain the absolute value of a phase field from the wrapped one. Ideally, without phase noise, singularity, and aliasing problems, the phase information can be unwrapped easily. However, the phase data are always contaminated by noise and discontinuities, making the PU process more complicated. Hence, a suitable PU… (More)

- Bagus Arthaya, Irwan Gunawan, Hendra Gunawan
- 2008 Eighth International Conference on…
- 2008

Reverse engineering (RE) technique is now becoming an emerging technology for modeling a physical part into a digital model. This is eventually required when one has to redesign an old product or to remanufacture a non-filed engineering product. This technique involves manufacturing a new interesting product or redesigning an existing product in order to… (More)

- Oki Suwarsa, Endang Sutedja, +4 authors Hendra Gunawan
- Case reports in dermatology
- 2017

Pemphigus vegetans is a clinical variant of pemphigus vulgaris, accounting for 1-2% of all very rare pemphigus cases in children. The involvement of the oral mucosa in this disease is usually accompanied by severe pain that aggravates the patient's malnourished condition. Conversely, malnutrition may also reduce vulnerability towards autoimmune diseases.… (More)

- Kusworo Adi, Tati L. R. Mengko, Andriyan B. Suksmono, H. Gunawan
- International Conference on Instrumentation…
- 2009

The reconstruction of absolute phase data from its wrapped phase is called Phase Unwrapping (PU). Usually, the absolute phase cannot be extracted from the fringe phase data directly. Ideally, without phase noise, singularity, and aliasing problems, the phase information can be unwrapped easily. However, the phase data are always contaminated by noise and… (More)

- Kusworo Adi, Tati L. R. Mengko, Andriyan Bayu Suksmono, Hendra Gunawan
- IJEHMC
- 2010

Phase Unwrapping (PU) is reconstruction of absolute phase data from its wrapped phase. The absolute phase cannot be extracted from the wrapped phase data directly. Without phase noise, singularity, and aliasing problems, the phase information can be unwrapped easily. However, the phase data are always contaminated by noise and discontinuities, making the PU… (More)

- Şükran Konca, Mochammad Idris, Hendra Gunawan, Metin Başarır
- 2015

We revisit the space l of p-summable sequences of real numbers. In particular, we show that this space is actually contained in a (weighted) 2-inner product space. For p > 2, we also obtain a result which describes how the weighted 2-inner product space is associated to the weights.

- Franky Chandra, Dendi Sandiono, Unwati Sugiri, Oki Suwarsa, Hendra Gunawan
- Dermatology and therapy
- 2017

INTRODUCTION
Cutaneous side effects caused by epidermal growth factor receptor (EGFR) inhibitors occurred in 45-100% of patients which may lead to therapy modification or interruption. This study aimed to evaluate cutaneous side effects and transepidermal water loss (TEWL) values in non-small cell lung carcinoma (NSCLC) patients who received gefitinib EGFR… (More)