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Hemodynamic Software, Project nGene.org®

Hyunsuk Frank Roh, MD: Echocardiographer & IRB Chair



#1/2 The Mythical Man-Month: Prologue of my Life Ahead (written in 2013)

Throughout an entire undergraduate semester in 2006, Professor Elliot Soloway repeatedly read aloud selections from the book, The Mythical Man-Month by Fred Brooks. The particularly memorable quote from the book about being a software architect read as follows: "The man-month as a unit of measuring the size of a job is a dangerous and deceptive myth." In other words, if the software architect decides to increase the manpower in order to decrease the month required for the software development, it is likely to, rather, deteriorate the project by increasing the intercommunication complexity. Fortunately, this principle, highlighted by Soloway, resonated with me based on my past experiences.

Professor Robert Denver provided me with an excellent opportunity to learn basic molecular biology lab techniques. He assigned me the task of sequencing a gene from Xenopus tropicalis using Vector NTI software. This introduction to bioinformatics was pivotal, propelling me towards further interdisciplinary research in computer science and biology. Later, I serendipitously attended "Computational Biology Short Courses" in August 2004, where I was introduced to a broad range of computational biology topics by various instructors, including Professor David States, the developer of BLASTX. The BLAST algorithm captivated me and has profoundly influenced me ever since, as demonstrated by my BLASTed logo.

nGene Logo nGene Logo Vector NTI Alignment Vector NTI Alignment
nGene, along with "enGine" and "&Gene," shares a similar pronunciation, and these terms can be visually aligned and color-coded, reminiscent of how DNA or protein sequences are presented in Vector NTI software.

Professor Jignesh Patel gracefully allowed me to attend his weekly Bioinformatics seminar and assigned me a programming project to evaluate phylogenetic tree-generating algorithms. There, I realized that, in an interdisciplinary field, there could not be enough emphasis on communication between Apple and Orange in order to be on the same page; in this sense, being a chimera myself, trained in both fields, I can help (1) by not doubling the number of "men" required and (2) by reducing the "intercommunication complexity" on a manageable level. During the past seven years, there were many tears and changes in my life... And yet, I can still feel my heart pumping with joyful anticipation about working on the interdisciplinary topic because of my belief that someday I will hopefully make an important contribution to this interdisciplinary field that had once seized me with the BLASTed heart.

- Written during my 2013 trip to British Columbia/California





RCT Meta-analysis: Robotic vs. Laparoscopic Surgery — Roh et al., 2017 · DOI: 10.1371/journal.pone.0191628


Pulmonary resection for multidrug-resistant tuberculosis - Roh et al., 2017 · DOI: 10.1093/ejcts/ezx209


Pixel-Level semi-automatization of Parmar's methodology


A decade of admiration and benchmarking built upon the MIT-BIH Arrhythmia Database  and the  Heart Sound and Murmur Library

This study is hoped to serve as a cornerstone for the following establishment:

St. Lazarus Translational Research Hospital
nGene Hemodynamic Research Center
Powered by Project nGene.org

Cornerstone laid on Nov 4th, 2025


Hierarchical analysis of multidrug-resistant organism clearance and asymmetric co-colonization in a long-term care facility - Roh et al., 2025 · DOI: 10.1016/j.jiph.2025.103017

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Virtual Ventilator Test-Lung Add-on Demo | Project_nGene.org iOS App v1.4

Independent software portfolio across Apple platforms

nGene App Ecosystem

A portfolio centered on Project_nGene.org, supported by four established applications, specialized products with growing practical value, and a separate collection of focused utilities.

Established applications

Four applications that currently represent the strongest level of completion and practical scope in the portfolio.

nGeneEngine

A local-first iPhone and Apple Watch utility combining OCR, dictation, translation, structured notes, color inspection, clinical lookup, and synchronized wearable workflows.

nGeneMediaPlayer

A local audio and video waveform workspace with playlists, A–B repeat, signal-study tools, ICA-oriented mixed-pair analysis, reading notes, chapters, and an Apple Watch playback remote.

nGeneRobotLab

A macOS development workspace for programmable robotics, combining Python editing and execution, connection and deployment workflows, motor and sensor testing, troubleshooting, and consolidated logs.

nGeneColorCube

An interactive 3D RGB workspace with real-world color sampling, detailed color models, contrast analysis, palette relationships, and visual exploration of color mixtures.

Specialized applications

Focused products expected to become increasingly useful as their domain-specific workflows continue to develop.

nGeneCrypto

A native iPhone and Apple Watch market-research workspace combining custom groups, multi-range charts, macro context, BTC key tools, Ethereum simulations, synchronized favorites, sparklines, and complications.

nGeneSwim

An evolving Apple Watch and iPhone swim-workout platform for pool profiles, motion-aware distance estimates, correction workflows, heart-rate tracking, water status, local statistics, and replay-oriented analysis.

macOS utilities

Practical desktop tools for storage analysis and document conversion.

nGeneAtlas

A local-first Mac storage explorer with Bubbles, Sunburst, Icicle, Treemap, and Largest Items views, plus SHA-256 duplicate verification, similar-folder discovery, Finder integration, and local-only analysis.

nGeneDjvu

A local-first macOS DjVu reader and PDF converter with drag-and-drop opening, continuous multi-page reading, navigation and zoom controls, Compact, Balanced, and Native Lossless export presets, cancellable operations, Finder reveal, and a dedicated Activity Log.

nGeneEpub

A local-first macOS EPUB reader and PDF export utility with drag-and-drop opening, reflowable and fixed-layout support, publication metadata inspection, paginated preview, navigation and zoom controls, Compact, Balanced, and Comfortable export presets, cancellable operations, and a detailed Activity Log.

Focused utilities

Smaller tools designed for particular personal timekeeping and transit workflows.

nGeneTime

A personal time utility exploring longitude-aware time, perpetual calendar concepts, clock presentation, and Apple Watch interaction.

nGeneSubwayWatch

A compact watch-first bilingual Korean subway companion for rapid checking, quick access, and wearable-oriented transit interaction.

Direct distribution

Kept separate from the applications distributed through Apple.

nGeneSDImager

Distributed independently from this website.

A directly distributed macOS utility for writing uncompressed .img, .raw, and .bin disk images to recognized SD media, with destructive-write confirmation, dual progress indicators, live logs, optional SHA-256 verification, cancellation checkpoints, and safe SD-card ejection.

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