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503 results on '"Furman D"'

15. CYBER SECURITY ANALYSIS SYSTEMS OF SOFTWARE AND TECHNICAL SUPPORT OF ENTERPRISE COMPUTERS AND SITES.

Author

Zadorov, V. V., Furman, D. O., Stopakevych, O. A., and Stopakevych, A. O.

Subjects
*COMPUTER technical support, *SECURITY systems software, *INTERNET security, *COMPUTERS, *SYSTEMS software, *CORPORATE websites, *INTERNET content management systems
Abstract

Enterprise computers and websites are prime targets for cybercriminals because they contain sensitive information and provide business processes. Businesses must be prepared to spot and prevent potential threats to avoid financial losses, reputational damage, and violations of customer data privacy. In this context, cybersecurity analysis systems for software and hardware of enterprise computers and websites play an important role. They allow to conduct a full-fledged infrastructure audit, discover potential vulnerabilities, assess risks, and develop protection strategies. These systems provide comprehensive information about the security status and help to make reasonable decisions on how to improve security. The article discusses two software systems for cybersecurity analysis. The first software system analyzes computer hardware and software, identifying potential security issues at the level of individual devices. It provides a user-friendly graphical interface of a desktop program and allows to perform a detailed analysis of computers, including an assessment of hardware and installed programs, and provides reports on the detected problems and recommendations for improving security. The second program, implemented as a Telegram bot, allows remote analysis of corporate websites and servers, simplifying the security control process for cybersecurity specialists and system administrators. The Telegram bot interface allows remote diagnostics of an arbitrary server without the need to access it, install and regularly update special software, which makes the bot comfortable to use. The bot analyzes various components of the website and the server on which it is hosted, including the server operating system version, server services, website CMS, website subdomains, server and website reputation, and server geolocation. The analysis results are presented in a report that helps identify potential vulnerabilities and provides recommendations for improving security. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
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16. Tubular adenoma of the small intestine

Author

Liakhovskyi, V. I., primary, Sydorenko, A. V., additional, Nemchenko, I. I., additional, Gorodova-Andreeva, T. V., additional, Savchuk, P. V., additional, and Furman, D. D., additional

Published
2021
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17. Brain-based Authentication: Towards A Scalable, Commercial Grade Solution Using Noninvasive Brain Signals

Author

Kopito R, Furman D, Kalev S, Brande-Eilat N, Haruvi A, and Kay E

Subjects
Authentication, business.product_category, Biometrics, Brain activity and meditation, Computer science, Human–computer interaction, Scalability, Wearable computer, Use case, business, Field (computer science), Headphones
Abstract

Here we report on a field test where we asked if it is feasible to deliver a scalable, commercial-grade solution for brain-based authentication given currently available head wearables. In this study, forty-nine (49) participants completed multiple sessions in their natural home environment over a single week. Participants used an off-the-shelf brain signal measuring headband to record their own brain activity while completing various tasks. Recording sessions were self-operated by the participants and unsupervised by any expert or technician to simulate real world use cases, while also contrasting common research approaches to this topic that rely on data from controlled laboratory conditions. Although brain signals have a non-stationary, complex nature, when participants watched rapidly presented images, our authentication system was able to successfully construct a unique and robust “brain ID” for each participant. Based on this brain ID, we developed a simplified brain-based authentication method that captures distinguishable information with reliable, commercial-grade performance from participants at their own homes. We conclude that noninvasively measured brain signals are ideal for use in biometric authentication systems, especially in environments where head wearables such as headphones or AR/VR devices are used as these devices offer a natural form factor for capturing participant brain ID continuously.

Published
2021

18. Modeling The Effect of Background Sounds on Human Focus Using Brain Decoding Technology

Author

Haruvi A, Kay E, Kopito R, Kalev S, Furman D, and Brande-Eilat N

Subjects
Focus (computing), Soundscape, medicine.medical_specialty, business.product_category, biology, Chorus, Audiology, biology.organism_classification, Key (music), Silence, Popular music, medicine, Active listening, business, Psychology, Headphones
Abstract

The goal of this study was to investigate the effect of sounds on human focus and to identify the properties that contribute most to increasing and decreasing focus in people within their natural, everyday environment. Participants (N=62, 18-65y) performed various tasks on a tablet computer while listening to either no background sounds (silence), popular music playlists designed to increase focus (pre-recorded songs in a particular sequence), or engineered soundscapes that were personalized to individual listeners (digital audio composed in real-time based on input parameters such as heart rate, time of day, location, etc.). Sounds were delivered to participants through headphones while simultaneously their brain signals were recorded by a portable electroencephalography headband. Participants completed four one-hour long sessions at home during which different sound content played continuously. Using brain decoding technology, we obtained individual participant focus levels over time and used this data to analyze the effects of various properties of sound. We found that while participants were working, personalized soundscapes increased their focus significantly above silence (p=0.008), while music playlists did not have a significant effect. For the young adult demographic (18-36y), all sound content tested was significantly better than silence at producing focus (p=0.001-0.009). Personalized soundscapes increased focus the most relative to silence, but playlists of pre-recorded songs also increased focus significantly during specific time intervals. Ultimately we found that it is possible to accurately predict human focus levels that will be experienced in response to sounds a priori based on the sound’s physical properties. We then applied this finding to compare between music genres and revealed that classical music, engineered soundscapes, and natural sounds were the best genres for increasing focus, while pop and hip-hop were the worst. These insights can enable human and artificial intelligence composers to produce increases or decreases in listener focus with high temporal (millisecond) precision. Future research will include real-time adaptation of sound libraries for other functional objectives beyond affecting focus, such as affecting listener enjoyment, stress, and memory.

Published
2021

26. Spatial distribution of the gain and temperature across the flow in a slit-nozzle supersonic chemical oxygen-iodine laser with transonic and supersonic schemes of iodine injection

Author

Rybalkin, V., Katz, A., Bruins, E., Furman, D., Barmashenko, B.D., and Rosenwaks, S.

Subjects
Chemical lasers -- Research, Lasers in chemistry, Gas lasers -- Research, Iodine -- Research, Oxygen -- Research, High power lasers -- Research, Business, Computers, Electronics, Electronics and electrical industries
Abstract

Spatial distributions of the gain and temperature across the flow in a slit-nozzle supersonic chemical oxygen-iodine laser (COIL) are measured. The purpose is to estimate the oxygen/iodine mixing efficiency of the COIL, which influences the output power.

Published
2002

27. One-dimesional modeling of the gain and temperature in a supersonic chemical oxygen-iodine laser with transonic injection of iodine

Author

Bruins, E., Furman, D., Rybalkin, V., Barmashenko, B.D., and Rosenwaks, S.

Subjects
Chemical lasers -- Research, Iodine -- Research, Oxygen -- Research, Lasers -- Research, Laser industry -- Research, Laser, Business, Computers, Electronics, Electronics and electrical industries
Abstract

A 1-D model is proposed for investigating the fluid dynamics and chemical kinetics in a chemical oxygen-iodine laser (COIL). Two dissociation mechanisms are tested against a COIL device, which are the mechanism of Heidner and the mechanism of Heaven.

Published
2002

33. Diode-laser-based absorption spectroscopy diagnostics of a jet-type O2((super 1)Delta) generator for chemical oxygen-iodine lasers

Author

Furman, D., Barmashenko, B.D., and Rosenwaks, S.

Subjects
Water vapor, Atmospheric -- Measurement, Oxygen -- Research, Diodes, Laser -- Usage, Chemical lasers -- Usage, Business, Computers, Electronics, Electronics and electrical industries
Abstract

A study was conducted to determine O2((super 1)Delta) yield and water vapor fraction at the exit of a jet-type singlet oxygen generator for a chemical oxygen-iodine laser. Diode-laser-based diagnostics were utilized to determine the yield and water vapor fraction. Results indicated that increases in the basic hydrogen peroxide temperature correlated with increases in the water vapor fraction resulting from a rise in the saturated water vapor pressure in the generator.

Published
1999

37. Parametric study of an efficient supersonic chemical oxygen-iodine laser/jet generator system operating without buffer gas

Author

Furman, D., Barmashenko, B.D., and Rosenwaks, S.

Subjects
Chemical lasers -- Research, Gas lasers -- Research, Lasers -- Resonators, Business, Computers, Electronics, Electronics and electrical industries
Abstract

Research was conducted to examine an efficient supersonic chemical oxygen-iodine laser in detail. A jet-type singlet oxygen generator, operated without primary buffer gas and applied simple nozzle geometry and transonic mixing of iodine and oxygen, was used to energize the laser. Results indicate that the power under the experimental conditions was almost unaffected by water vapor in the medium.

Published
1998

42. Power optimization of small-scale chemical oxygen-iodine laser with jet-type singlet oxygen generator

Author

Blayvas, I., Barmashenko, B.D., Furman, D., Rosenwaks, S., and Zagidullin, M.V.

Subjects
Chemical lasers -- Research, Hydrogen peroxide -- Observations, Business, Computers, Electronics, Electronics and electrical industries
Abstract

Power optimization surveys of a 5 cm gain length chemical oxygen-iodine laser energized by a jet-type singlet oxygen generator (JSOG) reveal the flexible chemical efficiency afforded by high oxygen pressure and low water vapor pressure inside the reaction zone. Adjustment of the basic hydrogen-peroxide solution (BHP) composition as well as temperature provide the desired water vapor pressure. The inhibiting influence of the freezing point of the BHP on the process may be surmounted not only by increasing the partial oxygen pressure inside the JSOG but also by using highly concentrated BHP.

Published
1996

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