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Articles 9601 - 9630 of 302421

Full-Text Articles in Physical Sciences and Mathematics

Determination Of Ketamine Using Melamine-Modified Gold Nanoparticles, Güler Güneş, Zi̇ya Can, Ayşem Arda, Mustafa Reşat Apak Oct 2023

Determination Of Ketamine Using Melamine-Modified Gold Nanoparticles, Güler Güneş, Zi̇ya Can, Ayşem Arda, Mustafa Reşat Apak

Turkish Journal of Chemistry

Ketamine is used in medicine because of its anaesthetic and antidepressant effects at low doses. Unfortunately, due to its narcotic effect when used at high doses, its abuse among young people is increasing. It is also one of the most common drugs used in rape. Therefore, there is a need for fast and inexpensive tests that can be performed on-site. With the advancement of nanotechnology, nanoparticle-based approaches have found their place in selective analyses as in many fields. In the developed method, firstly gold nanoparticles were modified with melamine (AuNPs@Mel). Under optimized conditions, hydrogen bonds formed between ketamine and AuNPs@Mel …

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Combination Of Smartphone Digital Image Colorimetry And Uv-Vis Spectrophotometry As Detection Systems With Solidified Floating Organic Drop Microextraction As Preconcentration Method For The Quantification Of Methyl Red In Wastewater Samples, Mi̇ray Bombom, Ayça Gi̇rgi̇n, Buse Tuğba Zaman, Fatma Turak, Sezgi̇n Bakirdere Oct 2023

Combination Of Smartphone Digital Image Colorimetry And Uv-Vis Spectrophotometry As Detection Systems With Solidified Floating Organic Drop Microextraction As Preconcentration Method For The Quantification Of Methyl Red In Wastewater Samples, Mi̇ray Bombom, Ayça Gi̇rgi̇n, Buse Tuğba Zaman, Fatma Turak, Sezgi̇n Bakirdere

Turkish Journal of Chemistry

In this study, a portable smartphone-based digital image colorimetric system (SDIC) was designed and integrated with a solidified floating organic drop microextraction method (SFODME) for the quantification of methyl red in textile wastewater samples. The RGB (red, green, and blue) data were evaluated for each captured image, and the green channel was selected for quantification due to its linear response for the analyte. Under optimal conditions, an acceptable linear range was recorded for the analyte. The proposed method recorded a limit of detection (LOD) value of 0.046 mg/L. The developed microextraction method was also combined with UVVis spectrophotometry, which recorded …

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Sonophotochemical And Photochemical Efficiency Of Thiazole-Containing Metal Phthalocyanines And Their Gold Nanoconjugates, Nazli Farajzadeh, Hacer Yasemi̇n Yeni̇lmez, Göknur Yaşa Atmaca, Ali̇ Erdoğmuş, Zehra Bayir Oct 2023

Sonophotochemical And Photochemical Efficiency Of Thiazole-Containing Metal Phthalocyanines And Their Gold Nanoconjugates, Nazli Farajzadeh, Hacer Yasemi̇n Yeni̇lmez, Göknur Yaşa Atmaca, Ali̇ Erdoğmuş, Zehra Bayir

Turkish Journal of Chemistry

This study presents the synthesis of some metal {M = Zn(II), Lu(III), Si(IV)} phthalocyanines bearing chlorine and 2-(4-methylthiazol-5-yl) ethoxy groups at peripheral or axial positions. The newly synthesized metal phthalocyanines were characterized by applying FT-IR, 1 H NMR, mass, and UV-Vis spectroscopic approaches. Additionally, the surface of gold nanoparticles was modified with zinc(II) and silicon(IV) phthalocyanines. The resultant nanoconjugates were characterized using TEM images. Moreover, the effect of metal ions and position of substituent, and gold nanoparticles on the photochemical and sonophotochemical properties of the studied phthalocyanines was investigated. The highest singlet oxygen quantum yield was obtained for the lutetium …

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Synthesis Of New Imine-/Amine-Bearing Imidazo[1,2-A]Pyrimidine Derivatives And Screening Of Their Cytotoxic Activity, Tuğba Güngör, Hazal Nazlican Atalay, Yakup Berkay Yilmaz, Tuğba Tümer, Mehmet Ay Oct 2023

Synthesis Of New Imine-/Amine-Bearing Imidazo[1,2-A]Pyrimidine Derivatives And Screening Of Their Cytotoxic Activity, Tuğba Güngör, Hazal Nazlican Atalay, Yakup Berkay Yilmaz, Tuğba Tümer, Mehmet Ay

Turkish Journal of Chemistry

Imidazo[1,2-a]pyrimidine derivatives bearing imine groups (3a-e) were successfully synthesized in moderate to good yields using microwave-assisted heating. Corresponding amine derivatives (4a-e) were also obtained by the reduction reaction of the imine derivatives (3a-e). All synthesized products were characterized by FT-IR, 1 H NMR, 13C NMR, and LC-MS spectroscopic techniques. In silico ADMET, Lipinski, and drug-likeness studies of the compounds were conducted and all were found to be suitable drug candidates. The cytotoxicity of the potential drug molecules was screened against the breast cancer cell lines MCF-7 and MDA-MB-231 and the healthy model HUVEC by the sulforhodamine B method. According to …

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Ph-Responsive Intermediary Layer Cross-Linked Micelles From Zwitterionic Triblock Copolymers And Investigation Of Their Drug-Release Behaviors, Agung Ari Wibowo, Vural Bütün Oct 2023

Ph-Responsive Intermediary Layer Cross-Linked Micelles From Zwitterionic Triblock Copolymers And Investigation Of Their Drug-Release Behaviors, Agung Ari Wibowo, Vural Bütün

Turkish Journal of Chemistry

ABC-type triblock copolymers, namely poly[(ethylene glycol)methyl ether]-block-poly(tert-butyl methacrylate)-block-poly[2-N-(diisopropylamino)ethyl methacrylate] (MPEG-b-PBuMA-b-PDPA), were first synthesized and then the middle blocks were successfully converted into poly(methacrylic acid) to obtain MPEG-b-PMAA-b-PDPA zwitterionic triblock copolymers. These block copolymers were soluble in water and formed micellar aggregates with complex cores via hydrogen bonding interactions between MPEG and PMAA blocks below pH 4.0. When the pH was between 5.0 and 7.0, due to charge compensation between partially protonated PDPA and partially ionized PMAA blocks, micelles with polyion complex cores were observed. If the solution pH was above 8.0, deprotonation of tertiary amine groups provided a hydrophobic character …

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Homoprotocatechuate Dioxygenase Active Site: Imitating The Secondary Sphere Base Via Computational Design, Muhammed Buyuktemiz, Yavuz Dede Oct 2023

Homoprotocatechuate Dioxygenase Active Site: Imitating The Secondary Sphere Base Via Computational Design, Muhammed Buyuktemiz, Yavuz Dede

Turkish Journal of Chemistry

Oxidative ring cleavage reactions have attracted great interest and various studies on the catechol ring-cleaving enzyme homoprotocatechuate dioxygenase (HPCD) have been reported in the literature. The available data on how the proton transfer takes place led us to design a potential HPCD model structure. A secondary sphere effect of utmost importance, the assistance of His200, which is critical for the catechol proton to migrate to dioxygen, was cautiously included on the first coordination shell. This was done mainly by modifying the axial ligands in the first coordination shell of HPCD such that the dual basic/acidic role in the proton transfer …

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Cibacron Blue F3ga Ligand Dye-Based Magnetic Silica Particles For The Albumin Purification, Nurhak Tatar, Semra Akgönüllü, Handan Yavuz Alagöz, Adi̇l Deni̇zli̇ Oct 2023

Cibacron Blue F3ga Ligand Dye-Based Magnetic Silica Particles For The Albumin Purification, Nurhak Tatar, Semra Akgönüllü, Handan Yavuz Alagöz, Adi̇l Deni̇zli̇

Turkish Journal of Chemistry

Dye-ligand affinity chromatography is among the increasingly popular affinity chromatography based on molecular recognition for the purification of albumin. This study focuses on the binding of Cibacron Blue F3GA ligand dye with magnetic silica particles and purification by separation. Mono-disperse silica particles with bimodal pore size distribution were employed as a high-performance adsorbent for human serum albumin (HSA) protein purification under equilibrium conditions. The synthesized ligand-dye affinity based magnetic silica particles were characterized by electron spin resonance, Fourier-transform infrared spectroscopy, scanning electron microscopy, vibrating sample magnetometer, elemental analysis, and dispersive X-ray analysis. The HSA purification performance of the proposed material …

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The Chemical And Electrochemical Stimuli Viologen Substituted Phthalocyanine With Tunable Optical Features1, Özge Di̇lara Ateş, Gülenay Tunç, Ahmet Şenocak, Burcu Dedeoğlu, Mehmet Menaf Ayhan, Ayşe Gül Gürek Oct 2023

The Chemical And Electrochemical Stimuli Viologen Substituted Phthalocyanine With Tunable Optical Features1, Özge Di̇lara Ateş, Gülenay Tunç, Ahmet Şenocak, Burcu Dedeoğlu, Mehmet Menaf Ayhan, Ayşe Gül Gürek

Turkish Journal of Chemistry

In this study, viologen-tetrasubstituted Zn(II) phthalocyanines (PcV1 and PcV2) were designed and synthesized to achieve the tunable optical features via redox-active viologen groups. Several parameters relevant to the evaluation of the tunable optical features have been investigated: UV-Vis, cyclic voltammetry (CV), EPR, square wave voltammetry (SWV), and theoretical analyses. The results showed that upon reductions and oxidations of viologen groups either chemically or electrochemically, the optical features of PcV1 and PcV2 change drastically with switchable processes. These outcomes indicate that achieving control over optical features of large organic chromophores such as Pc with our rational design can be used for …

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Comparatively Sonophotochemical And Photochemical Studies Of Phthalocyanines With Cationic Substituents On Nonperipheral Positions, Mukaddes Özçeşmeci̇, Ceren Can Karanlik, Ali̇ Erdoğmuş, Esi̇n Hamuryudan Oct 2023

Comparatively Sonophotochemical And Photochemical Studies Of Phthalocyanines With Cationic Substituents On Nonperipheral Positions, Mukaddes Özçeşmeci̇, Ceren Can Karanlik, Ali̇ Erdoğmuş, Esi̇n Hamuryudan

Turkish Journal of Chemistry

The term sonophotodynamic therapy (SPDT) refers to a combination of sonodynamic therapy (SDT) and photodynamic therapy (PDT), in which the efficacy of the treatment is boosted by utilizing the proper amount of a sensitizer that is responsive to both light and ultrasound. Although it has been proven in photophysicochemical studies that SPDT enhances singlet oxygen production, related studies in the literature are very limited. Considering this situation, this study aims to investigate the efficacy of synthesized phthalocyanines in terms of PDT and SPDT. The singlet oxygen quantum values calculated as 0.13 for 5, 0.44 for 6, and 0.61 for 7 …

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Amplifying The Dielectric Constant Of Shellac By Incorporating Natural Clays For Organic Field Effect Transistors (Ofets), Sunwoo Kim, Cigdem Yumusak, Cristian-Vlad Irimia, Mateusz Bednorz, Esma Yenel, Mahmut Kuş, Ni̇yazi̇ Serdar Sariçi̇ftçi̇, Bong Sup Shim, Mihai Irimia Oct 2023

Amplifying The Dielectric Constant Of Shellac By Incorporating Natural Clays For Organic Field Effect Transistors (Ofets), Sunwoo Kim, Cigdem Yumusak, Cristian-Vlad Irimia, Mateusz Bednorz, Esma Yenel, Mahmut Kuş, Ni̇yazi̇ Serdar Sariçi̇ftçi̇, Bong Sup Shim, Mihai Irimia

Turkish Journal of Chemistry

We demonstrate in this work the practical use of uniform mixtures of a bioresin shellac and four natural clays, i.e. montmorillonite, sepiolite, halloysite and vermiculate as dielectrics in organic field effect transistors (OFETs). We present a thorough characterization of their processability and film forming characteristic, surface characterization, elaborate dielectric investigation and the fabrication of field effect transistors with two classic organic semiconductors, i.e. pentacene and fullerene C60. We show that low operating voltage of approximately 4 V is possible for all the OFETs using several combinations of clays and shellac. The capacitance measurements show an improvement of the dielectric constant …

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A Facile Tert-Butyl Nitrite-Assisted Preparation Of Deamino Graphitic Carbon Nitride (Da-Gcn) As A Photocatalyst For The C-H Arylation Of Heteroarenes Using Anilines As Radical Source, Palani Natarajan, Begümhan Karapinar Koç, Önder Meti̇n Oct 2023

A Facile Tert-Butyl Nitrite-Assisted Preparation Of Deamino Graphitic Carbon Nitride (Da-Gcn) As A Photocatalyst For The C-H Arylation Of Heteroarenes Using Anilines As Radical Source, Palani Natarajan, Begümhan Karapinar Koç, Önder Meti̇n

Turkish Journal of Chemistry

In pristine graphitic carbon nitride (g-CN), amino groups often function as structural defects that trap photogenerated charges, resulting in low photocatalytic activity as well as reaction with nitrite, aldehyde, etc., ensuing in poor product yield. Without significantly altering the optical characteristics, the removal of amino groups is necessary to increase the photocatalytic activity and structural stability of pristine g-CN. The deamino graphitic carbon nitride (DA-gCN-5) was prepared by tert-butyl nitrite (TBN)- treatment, characterized and used as a photocatalyst for the radical C-H arylation of heteroarenes using anilines as radical source. Indeed, the photophysical characteristics of DA-gCN-5 and those of pristine …

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Reducible Tungsten(Vi) Oxide-Supported Ruthenium(0) Nanoparticles: Highly Active Catalyst For Hydrolytic Dehydrogenation Of Ammonia Borane, Serdar Akbayrak, Yalçin Tonbul, Sai̇m Özkar Oct 2023

Reducible Tungsten(Vi) Oxide-Supported Ruthenium(0) Nanoparticles: Highly Active Catalyst For Hydrolytic Dehydrogenation Of Ammonia Borane, Serdar Akbayrak, Yalçin Tonbul, Sai̇m Özkar

Turkish Journal of Chemistry

Reducible WO3 powder with a mean diameter of 100 nm is used as support to stabilize ruthenium(0) nanoparticles. Ruthenium(0) nanoparticles are obtained by NaBH4 reduction of ruthenium(III) precursor on the surface of WO3 support at room temperature. Ruthenium(0) nanoparticles are uniformly dispersed on the surface of tungsten(VI) oxide. The obtained Ru0 /WO3 nanoparticles are found to be active catalysts in hydrolytic dehydrogenation of ammonia borane. The turnover frequency (TOF) values of the Ru0 /WO3 nanocatalysts with the metal loading of 1.0%, 2.0%, and 3.0% wt. Ru are 122, 106, and 83 min-1, respectively, in releasing hydrogen gas from …

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A Multifunctional Thienothiophene Member: 4-Thieno[3,2-B]Thiophen-3-Ylbenzonitrile (4-Cnphtt), Recep İşçi̇, Turan Öztürk Oct 2023

A Multifunctional Thienothiophene Member: 4-Thieno[3,2-B]Thiophen-3-Ylbenzonitrile (4-Cnphtt), Recep İşçi̇, Turan Öztürk

Turkish Journal of Chemistry

Thieno[3,2-b]thiophene (TT) has been attracting significant attention in the field of organic electronics and optoelectronics. In this study, a useful building block of TT derivative 4-thieno[3,2-b]thiophen-3-ylbenzonitrile (4-CNPhTT), developed by our group and possessing a strong electron-withdrawing 4-CNPh moiety, is reviewed as it has been the source of the development of various organic electronic materials. Some optic and electronic properties are discussed based on electrochemical polymerization of 4-CNPhTT performed using cyclic voltammetry, and spectroelectrochemical measurements are conducted to investigate the optical variations of the polymer film upon doping. Moreover, 4-CNPhTT is clarified by scanning electron microscopy at different magnitudes ranging from …

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Benzimidazol-2-Ylidene Ruthenium Complexes For C-N Bond Formation Through Alcohol Dehydrogenation, Zahid Nawaz, Nevi̇n Gürbüz, Muhammed Naveed Zafar, Namik Özdemi̇r, Beki̇r Çeti̇nkaya, İsmai̇l Özdemi̇r Oct 2023

Benzimidazol-2-Ylidene Ruthenium Complexes For C-N Bond Formation Through Alcohol Dehydrogenation, Zahid Nawaz, Nevi̇n Gürbüz, Muhammed Naveed Zafar, Namik Özdemi̇r, Beki̇r Çeti̇nkaya, İsmai̇l Özdemi̇r

Turkish Journal of Chemistry

A low temperature hydrogen borrowing approach to generate secondary amines using benzimidazole-based N-heterocyclic carbene (BNHC) ruthenium complexes is reported. A series of the piano-stool complexes of the type [(η6 -p-cymene)(BNHC)RuCl2 ] (1a-g) were synthesized via one-pot reaction of the NHC salt precursor, Ag2 O, and [RuCl2 (p-cymene)]2 and characterized using conventional spectroscopic techniques. The geometry of two precursors, [(η6 -p-cymene)(Me4BnMe2 BNHCCH2OxMe)RuCl2 ] (1f) and [(η6 -p-cymene)(Me5BnMe2 BNHCCH2OxMe)RuCl2 ] (1g), was studied by single crystal X-ray diffraction. These catalysts were found to dehydrogenate alcohols efficiently at temperatures as low as 50 °C to allow Schiff-base condensation and subsequent …

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Recommendations For Improving The Experimental Protocol For The Determination Of Photocatalytic Activity By Nitric Oxide Oxidation Measurements, Seli̇n Ernam, Zeynep Ece Akgül, Deni̇z Üner Oct 2023

Recommendations For Improving The Experimental Protocol For The Determination Of Photocatalytic Activity By Nitric Oxide Oxidation Measurements, Seli̇n Ernam, Zeynep Ece Akgül, Deni̇z Üner

Turkish Journal of Chemistry

The photocatalytic nitric oxide (NO) oxidation reaction is used as a standard diagnostic tool for photocatalytic activity according to the well-defined protocol described by ISO Standard 22197-1-2007. This protocol identifies the negative peak showing a NOx concentration drop during a gas flow switch from the calibration bypass to the reactor as adsorption of NOx on the surface. Evidence is provided for this first transient to be due to a dilution effect in the gas phase within the reactor. With proper models of residence time distribution analysis, this transient revealed the internal hydrodynamics and it can be used to determine the …

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Synthesis Of Alnustone-Like Diarylpentanoids Via A 4 + 1 Strategy And Assessment Of Their Potential Anticancer Activity, Nesli̇han Çelebi̇oğlu, Özlem Özdemi̇r Tozlu, Hasan Türkez, Hasan Seçen Oct 2023

Synthesis Of Alnustone-Like Diarylpentanoids Via A 4 + 1 Strategy And Assessment Of Their Potential Anticancer Activity, Nesli̇han Çelebi̇oğlu, Özlem Özdemi̇r Tozlu, Hasan Türkez, Hasan Seçen

Turkish Journal of Chemistry

Twelve compounds with a 1,5-diaryl-1-penten-3-one structure were synthesized and their cytotoxic activities were evaluated. The 1,5-diaryl-1-penten-3-one compounds were obtained via in situ enaminations of 4-phenyl-2-butanone and 4-(4-hydroxyphenyl)-2- butanone in the presence of pyrrolidine-AcOH, followed by condensation with six different benzaldehydes. The synthesized compounds were tested for their cytotoxic activity against human glioblastoma (U87-MG), breast (MCF-7), and prostate (PC-3) cancer cell lines. Some of the novel compounds exhibited remarkable cytotoxic action, especially against MCF-7 cancer cells.

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Synthesis, Characterization, And Photophysical And Fluorescence Sensor Behaviors Of A New Water-Soluble Double-Bridged Naphthalene Diimide Appended Cyclotriphosphazene, Süreyya Oğuz Tümay, Serkan Yeşi̇lot Oct 2023

Synthesis, Characterization, And Photophysical And Fluorescence Sensor Behaviors Of A New Water-Soluble Double-Bridged Naphthalene Diimide Appended Cyclotriphosphazene, Süreyya Oğuz Tümay, Serkan Yeşi̇lot

Turkish Journal of Chemistry

A new water-soluble template of double-bridged naphthalene diimide appended cyclotriphosphazene was prepared, and its photophysical and sensor behaviors were evaluated. The characterization of novel double-bridged naphthalene diimide appended cyclotriphosphazene (6) was carried out by NMR (1 H, 13C, 31P) and mass spectroscopies. The photophysical behaviors of compound 6 were evaluated by UV-Vis absorption and fluorescence spectroscopies in various solvent systems and different concentrations. As an application for usability of the obtained water-soluble template in different applications, the fluorescence sensor property of compound 6 was investigated in the presence of many different competing species (organic acids, saccharides, nitroaromatic compounds, anions, and …

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Phthalocyanines Prepared From 4,5-Dihexylthiophthalonitrile, A Popular Building Block, Derya Topkaya Taşkiran, Zeynel Şahi̇n, Ümi̇t İşci̇, Fabi̇enne Dumouli̇n Oct 2023

Phthalocyanines Prepared From 4,5-Dihexylthiophthalonitrile, A Popular Building Block, Derya Topkaya Taşkiran, Zeynel Şahi̇n, Ümi̇t İşci̇, Fabi̇enne Dumouli̇n

Turkish Journal of Chemistry

Phthalocyanines are tetrapyrrolic artificial porphyrinoids that play major roles in advanced biological and technological applications. Research on this family of dyes is particularly active in Türkiye, with many derivatives being prepared from 4,5-dihexyl-thiophthalonitrile DiSHexPN, which is one of the most popular noncommercially available building blocks for phthalocyanines. This review summarizes the phthalocyanines and their versatile properties and applications that have been published since 1994, when the synthesis of DiSHexPN was first described, to emphasize the importance of this building block in plentiful applications, all with bio-medical or technological impact.

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Effect Of Under-Reporting, Vaccine Efficiency And Social Behavior On Epidemic Progression, Samiran Ghosh Oct 2023

Effect Of Under-Reporting, Vaccine Efficiency And Social Behavior On Epidemic Progression, Samiran Ghosh

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

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Ventilation Of Tunnels During Drilling Using A Forcing Ventilation System – A Case Study, Krzysztof Słota, Zbigniew Słota Oct 2023

Ventilation Of Tunnels During Drilling Using A Forcing Ventilation System – A Case Study, Krzysztof Słota, Zbigniew Słota

Journal of Sustainable Mining

In Poland, more and more tunnels are being built using mining methods. Mostly ventilation systems are described for tunnels already commissioned. There are few examples of ventilation calculations for tunnels under construction. The paper shows a case study where calculations were made of the minimum air volume flow required to ventilate a tunnel during its tunnelling using four duct ventilation systems. The first system used two separate fans with a 1200 mm diameter duct line, the second system changed the diameter of the duct line to 1400 mm, the third system used one fan with two 1200 mm diameter duct …

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Influence Of Explosive Maximum Instantaneous Charge On Blasting Environmental Impact, Olukemi Yetunde Odeyemi, Blessing Olamide Taiwo, Olarewaju Alaba Oct 2023

Influence Of Explosive Maximum Instantaneous Charge On Blasting Environmental Impact, Olukemi Yetunde Odeyemi, Blessing Olamide Taiwo, Olarewaju Alaba

Journal of Sustainable Mining

Our research looked at the effect of explosive maximum instantaneous charge on ground vibrations and noise levels during blasting operations at the Calaba limestone quarry in Nigeria. Vibrock (V9000) seismograph was used to take readings related to ground vibrations and noise generated during all blasting operations that took place in the quarry for a period of one year. The results obtained indicate that the average ground vibration readings fall between 0.25mm/s to 3.6mm/s and the average noise decibel generated during the blasting operations between 35 to 158 dB. An artificial neural network (ANN) model is developed in this study for …

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Further Generalizations Of Happy Numbers, E. Simonton Williams Oct 2023

Further Generalizations Of Happy Numbers, E. Simonton Williams

Rose-Hulman Undergraduate Mathematics Journal

A positive integer n is defined to be happy if iteration of the function taking the sum of the squares of the digits of n eventually reaches 1. In this paper we generalize the concept of happy numbers in several ways. First we confirm known results of Grundman and Teeple and establish further results extending the known structure of happy numbers to higher powers. Then we construct a similar function expanding the definition of happy numbers to negative integers. Working with this function, we prove a range of results paralleling those already proven for traditional and generalized happy numbers. Finally, …

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Generative Ai-Based Non-Person Character (Npc) For Navigating Virtual Worlds, Ananth Ramaseri-Chandra Oct 2023

Generative Ai-Based Non-Person Character (Npc) For Navigating Virtual Worlds, Ananth Ramaseri-Chandra

Computer Science Posters and Presentations

An innovative approach to virtual world interactions through generative AI-based Non-person Characters (NPCs). These AI-driven NPCs significantly advance over traditional, scripted characters by providing more realistic, adaptive, and dynamic interactions in various virtual environments. The work details the development process of these NPCs, from algorithm design to data integration and iterative refinement, ensuring their seamless integration into game environments. Additionally, the poster explores the wide-ranging applications of these AI NPCs, including enhancing gaming experiences, offering realistic training environments, and facilitating personalized virtual learning experiences. This research marks a substantial leap in virtual interaction, pushing the boundaries of immersion and realism …

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10.30.2023, Liz Williamson Oct 2023

10.30.2023, Liz Williamson

ORSP Newsletter

No abstract provided.

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Reliability Evaluation Method Of Radar Simulation Model Based On Air Combat Mechanism, Chenguang Wang, Jinpeng Bai, Tingting Li, Lifeng Miao, Kaifeng Wang Oct 2023

Reliability Evaluation Method Of Radar Simulation Model Based On Air Combat Mechanism, Chenguang Wang, Jinpeng Bai, Tingting Li, Lifeng Miao, Kaifeng Wang

Journal of System Simulation

Abstract: In modern air combat simulation, the reliability of radar simulation model is very important. Based on simulation model VV&A theory, a cropped and suitable for engineering applications simulation model reliability evaluation method is proposed. Based on the analysis of radar use mechanism in medium and long range air combat and short range air combat is analyzed,, the requirement of radar model in air combat simulation system, the evaluation index system is established, and the reliability quantification method based on JS dispersion is proposed, which further enriches the base of basic method. The test case is designed, the simulation test …

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A Structured Conceptual Model Of Joint Operations From Design Perspective, Rui Wen Oct 2023

A Structured Conceptual Model Of Joint Operations From Design Perspective, Rui Wen

Journal of System Simulation

Abstract: With the development of technology, through the complementary interaction among operations, operation effectiveness can non-linearly increase and realize fissional and exponential effect. In order to realize dynamic convergence, it is necessary to carry out the action, information and energy unified design. From the antagonism view, taking into account the factors such as the purpose of the operation, the strength of the operation, the conditions of the operation, and so on, the joint operation is divided into the preorder action/ state, the major operational action, the counter-action, the response action, and the branch action, which is synthesized to major operation, …

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Electromagnetic Transient Equivalent Modeling Method For Wind Power Clusters Adapted To Expected Faults, Dongsheng Li, Ye Liu, Yankan Song, Chen Shen Oct 2023

Electromagnetic Transient Equivalent Modeling Method For Wind Power Clusters Adapted To Expected Faults, Dongsheng Li, Ye Liu, Yankan Song, Chen Shen

Journal of System Simulation

Abstract: Based on an existing equivalent modeling method for individual wind farm, an iterative simulation-based equivalent modeling method for wind power clusters is proposed and a software development for equivalent modeling of wind power clusters is completed by using CloudPSS-XStudio suite. The system integrates expected fault selection, equivalent parameter calculation and result analysis, which provides support for dynamic security assessment of power systems with large-scale wind power clusters. The equivalent method takes the average wind speed of each wind farm and the expected faults as input, and obtains the cluster index of each wind turbine based on the iterative simulation …

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Modeling And Analysis On Scattering Characteristics Automatic Driving Radar Bands In Rainy Environment, Mengfan Zou, Xiaoyu He Oct 2023

Modeling And Analysis On Scattering Characteristics Automatic Driving Radar Bands In Rainy Environment, Mengfan Zou, Xiaoyu He

Journal of System Simulation

Abstract: The operating frequency band of modern communication and radar systems has extended to millimeter wave and terahertz frequency band, and the analysis on propagation characteristics of electromagnetic signals in rainy environment is important. A calculation model through Mie scattering theory is built to simulate the attenuation and the scattering of electromagnetic signals in rainy environments. Different types of raindrop size distribution function are adopted to analyze the propagation attenuation under different rainfall of frequencies spanning from 1 GHz to 1 THz. Experimental results are compared with international telecommunication union (ITU) half-empirical model to verify the validation of the model. …

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Research On Multi-Aircraft Air Combat Behavior Modeling Based On Hierarchical Intelligent Modeling Methods, Yukun Wang, Ze Wang, Liwei Dong, Ni Li Oct 2023

Research On Multi-Aircraft Air Combat Behavior Modeling Based On Hierarchical Intelligent Modeling Methods, Yukun Wang, Ze Wang, Liwei Dong, Ni Li

Journal of System Simulation

Abstract: In response to the problem of the difficulty of decision-making in the game of force under the constraints of high-dimensional state-space in multi-machine air combat confrontation scenarios, a force intelligent agent decision-making generation strategy based on deep reinforcement learning is adopted. The developing situational cognition and reward feedback generation algorithms for force intelligentgame are proposed, a behavior modeling hierarchical framework based on hybrid intelligence modeling method is constructed, which solve the technical difficulty of sparse reward in the reinforcement learning process. It provides an feasible reinforcement learning training method that can solve the large-scale, multi-model, and multi-element air combat …

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An Automatic Code Generation Method For Generic Real-Time Hardware-In-The-Loop Simulation Based On Custom Wizard, Zihan Liu, Lingxiao Hou, Yang Li, Zhiguang Wang, Wulong Zhang Oct 2023

An Automatic Code Generation Method For Generic Real-Time Hardware-In-The-Loop Simulation Based On Custom Wizard, Zihan Liu, Lingxiao Hou, Yang Li, Zhiguang Wang, Wulong Zhang

Journal of System Simulation

Abstract: For the capability improvement demands of automation and generalization hardware-in-theloop simulation system, an automatic code generation method for generic real-time hardware-in-the-loop simulation based on custom wizard is proposed. A modular and universal code template-based frame documents and professional resource library are constructed with years of technical accumulation in hardware-in-the-loop simulation. The responsive front-ends and scripts are designed by HTML, CSS and JavaScript and an universal automatic code generation software AutoSimRTX is developed, which effectively supports the construction of hardware-in-the-loop simulation system.

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