Research on Simulation and Performance Optimization of Mach 4 Civil Aircraft Propulsion Concept by Min Chen, Zihao Jia, Hailong Tang, Yi Xiao, Yonghang Yang, Feijia Yin

“…Third, the Stone model and the DLR method were investigated to estimate the engine jet noise and the NOx emission of the Mach 4 supersonic civil aircraft. Finally, a multiobjective optimization tool made up of a response surface method and a genetic algorithm was developed to optimize the design parameters and the control law of the TBCC engine, in order to make the Mach 4 supersonic civil aircraft engine with better performance, lower noise, and lower emissions. …”
Get full text

On the Diophantine equation x2+p2k+1=4yn by S. Akhtar Arif, Amal S. Al-Ali

“…It has been proved that if p is an odd prime, y>1, k≥0, n is an integer greater than or equal to 4, (n,3h)=1 where h is the class number of the field Q(−p), then the equation x2+p2k+1=4yn has exactly five families of solution in the positive integers x, y. …”
Get full text

Design Method of Quick Return Four-bar Mechanism based on the Geometric Principle by Xu Jin, Xu Aiqun, Zhao Qian

“…As a common quick return mechanism,the plane- four- bar mechanism is widely used in engineering. …”
Get full text

A Case of Myoepithelial Hamartoma: Morphological Variation Supported by OCT4 Expression by Takehiro Tanaka, Kenji Nishida, Masaya Iwamuro, Satoru Kikuchi, Tadashi Yoshino

“…The distribution of OCT4, which is a pluripotency marker, varied in each part.…”
Get full text

Leadership Skills Series #4: Working in Teams & Creating a Culture of Excellence by Jera Niewoehner-Green, Matthew Sowcik, Jennifer Wert

“…This publication introduces four videos that can be accessed online and utilized for Extension professional development. …”
Get full text

Bi-Integrable Couplings of a New Soliton Hierarchy Associated with SO(4) by Yan Cao, Liangyun Chen, Baiying He

“…Based on the six-dimensional real special orthogonal Lie algebra SO(4), a new Lax integrable hierarchy is obtained by constructing an isospectral problem. …”
Get full text

A Case of Immunoglobulin G4-Related Disease with Extensive Multiorgan Involvements by Kazuhiko Higashioka, Kenji Yoshida, Kensuke Oryoji, Kazuo Kamada, Shinichi Mizuki, Hiroshi Tsukamoto, Eisuke Yokota, Koichi Akashi

“…We report a case of IgG4-related disease (IgG4-RD) with multiple ten-organ involvement. …”
Get full text

Endocrine Aspects of 4H Leukodystrophy: A Case Report and Review of the Literature by Emma Billington, Geneviève Bernard, William Gibson, Bernard Corenblum

“…Introduction. 4H leukodystrophy is an autosomal recessive RNA polymerase III-related leukodystrophy, characterized by hypomyelination, with or without hypodontia (or other dental abnormalities) and hypogonadotropic hypogonadism. …”
Get full text

Angiotensin IV Receptors in the Rat Prefrontal Cortex: Neuronal Expression and NMDA Inhibition by Zsolt Tamás Papp, Polett Ribiczey, Erzsébet Kató, Zsuzsanna E. Tóth, Zoltán V. Varga, Zoltán Giricz, Adrienn Hanuska, Mahmoud Al-Khrasani, Ákos Zsembery, Tibor Zelles, Laszlo G. Harsing, László Köles

Subjects: Get full text

RETRACTED: Development of new technology S4S (Star for Study) for teaching IT sphere students by Zokirov Sanjar, Rakhmatova Gavkharoy

Get full text

Synthesis, Characterization, and Antimicrobial Activity of Methyl-2-aminopyridine-4-carboxylate Derivatives by S. Nagashree, P. Mallu, L. Mallesha, S. Bindya

“…A series of methyl-2-aminopyridine-4-carboxylate derivatives, 3a–f, were synthesized in order to determine their in vitro antimicrobial activity. …”
Get full text

High cycle torsional fatigue properties of 17-4PH stainless steel by K. Yanase, B.M. Shönbauer, M. Endo

Subjects: “…17-4PH…”
Get full text

Social Media Will Tell Your Story: The Digital Strategy of #Ham4Ham by Ismael Lopez Medel

Subjects: Get full text

Risk Management for Florida 4-H Youth Development: Volunteer and Youth Protection by Paula Davis, Dale Pracht, Janet Psikogios, Kate Fogarty, Jean Hink, Marilyn Norman, Candi Dierenfield

“… This is one part of the series Risk Management for 4-H Youth Development Work. …”
Get full text

Solution processable perovskite-hybrid heterojunction silicon 4T tandem solar cells by Mohammad Adil Afroz, Bhavna Sharma, Ruchi K. Sharma, Ritesh Kumar Gupta, Ankita Sengupta, Sanjay K. Srivastava, Soumitra Satapathi

“…Here, a solution-based fabrication approach involving a high-performance semi-transparent perovskite cell (ST-PSC) stacked in tandem with a hybrid heterojunction silicon solar cell (HHSC) has been demonstrated for efficiency enhancement. The proposed 4-terminal tandem architecture exploits light management through the bandgap matching of the perovskite cell with silicon to minimize thermalization and absorption losses. …”
Get full text

Опыт электроразведки площадки поселения бронзового века Звягино-4 (Южное Зауралье) by Алаева Ирина Павловна, Муравьев Лев Анатольевич, Молчанов Иван Владимирович

“…В работе представлены результаты электроразведки неукрепленного поселения алакульской культуры Звягино-4 (XVIII–XVII вв. до н.э.) в лесостепной части Южного Зауралья. …”
Get full text

General Principles of Anti-Corruption in V4 Visegrad Countries: Experience of Hungary by V. S. Makarenko

“…The purpose of this article is to clarify the origins of the formation and to study general experience in implementing activities aimed at preventing and combating corruption in one of the countries of V4 Visegrad Group – Hungary, a neighbor of Ukraine, post-socialist country and member of the European Union since 2004, as well as to analyze its results and the possibility of implementing certain provisions into national legal system. …”
Get full text

A computationally efficient non‐iterative four‐parameter sine fitting method by Balázs Renczes, Vilmos Pálfi

“…Abstract A computationally efficient four‐parameter least squares (LS) sine fitting method in the time domain is presented here. …”
Get full text

Sensitivity analysis of closed-loop one-chamber and four-chamber models with baroreflex. by Karolina Tlałka, Harry Saxton, Ian Halliday, Xu Xu, Andrew Narracott, Daniel Taylor, Maciej Malawski

“…This work utilises a closed-loop in silico model of baroreflex regulation, coupled to pulsatile mechanical models with (i) one heart chamber and 36-parameters and (ii) four chambers and 51 parameters. We perform the first global sensitivity analysis of these closed-loop systems which considers both cardiovascular and baroreflex parameters, and compare the models with their respective unregulated equivalents. …”
Get full text

Industry 4.0: digital twins characteristics, applications, and challenges in-built environments by Heni Zribi, Taycir Ben Abid, Abdelkarim Elloumi, Yasmina Hani, Besma Bechir Graba, Aderrahman Elmhamedi

Subjects: Get full text