bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparisons of packet scheduling algorithms for fair service among connections on the Internet
Authors: Hasegawa Go , Matsuo Takahiro , Murata Masayuki , Miyahara Hideo
Published: December 2024

We investigate the performance of TCP under three representatives of packet scheduling algorithms at the router. Our main focus is to investigate how fair service can be provided for elastic applications sharing the link. Packet scheduling algorithms that we consider are FIFO (First In First Out), RED (Random Early Detection), and DRR (Deficit Round Robin). Through simulation and analysis results, we discuss the degree of achieved fairness in those scheduling algorithms. Furthermore, we propose a new algorithm which combines RED and DRR algorithms in order to prevent the unfairness property of the original DRR algorithm, which appears in some circumstances where we want to resolve the scalability problem of the DRR algorithm. In addition to TCP Reno version, we consider TCP Vegas to investigate its capability of providing the fairness. The results show that the principle of TCP Vegas conforms to DRR, but it cannot help improving the fairness among connections in FIFO and RED cases, which seems to be a substantial obstacle for the deployment of TCP Vegas.
A theory of multi‐channel schedulers for quality of service
Authors: Cobb Jorge A. , Lin Miaohua
Published: December 2024

A computer network consists of a set of computing nodes interconnected via communication channels. It is commonly assumed that, for each pair of network nodes u and v, there is at most one channel from u to v. However, it is often desirable to have multiple channels between nodes. That is, for every pair of network nodes u and v, there may be multiple channels from u to v. In this paper, we consider the problem of providing deterministic quality of service guarantees when there are multiple channels between nodes. We show that any packet scheduling protocol that operates over a single channel can be modified to operate over multiple channels. In addition, this transformation increases the packet delay through the node by only a small amount. However, having multiple channels between nodes may cause packet reorder. This reorder significantly increases the upper bound on end‐to‐end delay. We show how this increase in delay is avoided through the use of efficient sorting techniques.
A flexible bandwidth resource provisioning system with agent‐enhanced SLA negotiation
Authors: Chieng David H. T. , Marshall Alan
Published: December 2024

We present a novel bandwidth resource provisioning system that enables dynamic, flexible and quantitative end‐to‐end bandwidth reservation and management. The system facilitates agent‐enhanced Service Level Agreement (SLA) negotiation and brokering on a per‐user, per‐application or per‐flow basis. In this paper, various session level SLA schemes involving bandwidth allocation, service start time and service duration parameters are introduced and analysed. The results show how these negotiation schemes can be utilised for the benefits of both negotiating parties, such as getting the highest individual SLA optimisation in terms of Quality of Service (QoS) and price.
On TCP reaction to Explicit Congestion Notification
Authors: Kwon Minseok , Fahmy Sonia
Published: December 2024

We investigate the behavior of a new response strategy to TCP Explicit Congestion Notification (ECN). The new strategy is more aggressive in the short term, but preserves TCP long term behavior – without modifying the router ECN marking rate. A more aggressive short term behavior gives incentives for hosts to become ECN‐compliant. ECN serves as an early warning sign in this case. Our analysis demonstrates the effectiveness of the new TCP ECN behavior. Simulation results with short/long lived FTP, UDP and HTTP connections, multiple bottleneck configurations, and various TCP flavors and parameters, demonstrate higher throughput and reduced oscillations with the new response strategy.
Throughput maximization in traffic grooming in WDM mesh networks
Authors: Srinivas N. , Siva Ram Murthy C.
Published: December 2024

We consider the problem of efficient grooming of low‐speed connections onto high‐capacity lightpaths in WDM mesh networks. Maximizing the throughput and minimizing the network cost are the two most important objectives of the traffic grooming problem. It may not be possible to achieve both the goals simultaneously. We present an efficient heuristic algorithm to maximize throughput without compromising on the network cost. Our algorithm decides the placement of the transceivers at the nodes instead of operating on a fixed number of transceivers. Multihop routing and rerouting techniques have been used to achieve higher throughput. We use a two stage ILP approach to enable comparison of our algorithm with the optimum. We also present simulation results to contrast the performance of our approach with two recently proposed heuristic algorithms.
The case for a systematic approach to wireless mobile network simulation
Authors: Jobin J. , Faloutsos Michalis , Tripathi Satish K.
Published: December 2024

The goal of this paper is to develop a systematic approach to conducting simulations in wireless cellular networks. Performance analysis in such networks is a non-trivial task for the following reasons. First, there are a lot of parameters whose combined effect needs to be understood. Second, there are no benchmarks or widely accepted realistic values. As a result, different studies use different scenarios, and this makes the results of these studies incomparable.

How can we make network scenarios and results easier to interpret and compare? We start with the observation that absolute parameter values are meaningless. Instead, we propose the use of relative parameters. These parameters combine multiple parameters into fewer parameters; e.g., user speed and diameter of cell are combined into the cell latency parameter. Thus, we reduce the total parameter space, but more importantly, we capture the combined effect of parameters that affect the performance. We show how using relative units of time and space and relative parameters such as cell latency and average number of cells visited can provide better insight than absolute parameters such as session duration or absolute units such as seconds, miles, etc. In addition, we propose the use of steady state utilization, a novel metric that captures the inherent capacity of a mobile network. We show that steady state utilization can become the reference point with which we can conduct meaningful simulations and interpret results more effectively.

Finally, we describe a case study to illustrate our methodology. We evaluate the effect of bandwidth reservations on network performance. Our results show how reservations can actually hurt network performance.
Admission controller design for high-speed networks: A hybrid system approach
Authors: Jagannathan S.
Published: December 2024

A novel real-time discrete-event admission control (AC) scheme for high-speed networks is proposed with the aim of attaining a desired quality of service (QoS) and high network utilization. The AC uses the available capacity from a novel adaptive bandwidth estimation scheme, a congestion indicator derived from a congestion controller, Peak bit/cell Rate (PBR/PCR) estimate from new sources, along with the desired QoS metrics, and makes decisions whether to “admit” or “reject” new sources so that the QoS metrics and network utilization are met.

The admission controller dynamics are expressed as a discrete-event system while the bandwidth estimator design-based on Lyapunov theory and the congestion controller dynamics are given in discrete-time. The novel aspect of the proposed approach is the application of hybrid system theory to prove the performance of the proposed admission controller, stability and the development of rigorous and repeatable design procedure. The performance of the proposed AC is evaluated using the QoS metrics, which are given in terms of service delay, packet/cell losses, and network utilization. Simulation results are presented by streaming ON/OFF and MPEG video data into the network. Results show that the proposed AC admits significantly more traffic compared to other available admission control schemes thereby guaranteeing high network utilization while maintaining the desired QoS.
Throughput-delay analysis of interrupt-driven kernels with DMA enabled and disabled in high-speed networks
Authors: Salah K. , El-Badawi K.
Published: December 2024

Interrupt processing can be a major bottleneck in the end-to-end performance of high-speed networks. The performance of Gigabit network end hosts or servers can be severely degraded due to interrupt overhead caused by heavy incoming traffic. Under heavy network traffic, the system performance will be negatively affected due to interrupt overhead caused by the incoming traffic. In particular, excessive latency and significant degradation in system throughput can be experienced. In this paper, we present a throughput-delay analysis of such behavior. We develop analytical models based on queueing theory and Markov processes. In our analysis, we consider and model three systems: ideal, PIO, and DMA. In ideal system, the interrupt overhead is ignored. In PIO, DMA is disabled and copying of incoming packets is performed by the CPU. In DMA, copying of incoming packet is performed by DMA engines. For high-speed network hosts, both PIO and DMA can be desirable configuration options. The analysis yields insight into understanding and predicting the impact of system and network choices on the performance of interrupt-driven systems when subjected to light and heavy network loads. Simulations and reported experimental results show that our analytical models are valid and give a good approximation.
Reconfigurable grooming of dynamic traffic in SONET/WDM ring networks
Authors: Xie Shu-tong , Xu Yong
Published: December 2024

Traffic grooming is one of the most important problems in optical networks with high scientific and commercial value. Efficient grooming of traffic can not only effectively reduce the network's cost but also optimize its performance. To deal with the grooming of changing traffic in SONET/WDM rings, we classified it into the following two types: (1) reconfigurable grooming of deterministic dynamic traffic (REGDT); (2) reconfigurable grooming of non-deterministic dynamic traffic (REGNT). Two types of REGNT are studied, and two cases (best-fit and full-fit) for handling it were proposed in this paper. Further more, two heuristic algorithms, GA1 and GA2, which combine genetic algorithm with traffic-splitting heuristics, were developed to deal with each case. Computer simulations showed that the algorithms proposed in this paper can achieve much better results than previous ones for these two cases.
CASE BASED REASONING: DAMPAK TERHADAP BERPIKIR KREATIF, PEMAHAMAN KONSEP DAN SELF ESTEEM MATEMATIS
Authors: Azizah Siti Nur , Netriwati Netriwati , Fadila Abi
Published: December 2024

Pemahaman konsep, berpikir kreatif, dan self esteem matematis merupakan keterampilan matematika dasar yang dibutuhkan peserta didik untuk menyelesaikan permasalahan. Merujuk pada hasil pra penelitian diperoleh bahwa pemahaman konsep peserta didik masih lemah karena rata-rata hasil tes masih di bawah KKM. Kemampuan berpikir kreatif peserta didik juga masih rendah karena minat peserta didik yang kurang dalam menyelesaikan soal-soal matematika yang membutuhkan banyak strategi. Aspek afektif self esteem peserta didik tergolong kurang karena peserta didik masih menganggap bahwa matematika itu pelajaran yang menakutkan. Penelitian dilakukan di kelas VIII SMPN 1 Buay Madang Timur. Penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian quasy experiment dengan desain penelitian post-test only control group. Sampel dalam penelitian ini adalah peserta didik kelas VIII-D dan VIII-E dengan teknik sampling acak sederhana (simple random sampling). Teknik pengumpulan data dalam penelitian ini berupa dokumentasi, tes, angket, dan observasi. Uji hipotesis dalam penelitian ini menggunakan uji Multivariat Analysis of Variance (Manova). Hasil penelitian diperoleh bahwa terdapat pengaruh metode pembelajaran case based reasoning terhadap pemahaman konsep, berpikir kreatif, dan self esteem matematis peserta didik.
BAHAN AJAR METODE NUMERIK BERBANTU APLIKASI FOCUSKY DENGAN SISTEM PEMBELAJARAN DARING
Authors: Azizah Isnaini Nur
Published: December 2024

Bahan ajar adalah komponen penting dalam pembelajaran. Tujuan dari penelitian ini adalah menghasilkan produk berupa bahan ajar metode numerik berbantuan aplikasi focusky yang akan digunakan dalam sistem pembelajaran daring. Penelitian ini menggunakan metode Research and Development (R&D) dengan tahapan ADDIE yaitu Analysis, design, development, implementation dan evaluation. Subyek dalam penelitian ini sebanyak 31 subjek mahasiswa Universitas Ma’arif Lampung. Berdasarkan analisis data, hasil validasi rancangan ahli materi memperoleh nilai rata-rata 3,32 dan ahli media memperoleh nilai rata-rata 3,42. Sehingga dapat disimpulkan bahwa bahan ajar yang dikembangkan dinyatakan valid dan layak digunakan. Hasil uji coba lapangan berdasarkan hasil analisis angket respon mahasiswa diperoleh skor 2,86, disimpulkan bahwa daya tarik media termasuk dalam kategori menarik dan hasil keefektifan media mencapai 76% dan dinyatakan sangat efektif. Kesimpulannya, penggunaan bahan ajar ini layak dan efektif.
Treatment of Facial Ageing with Ozone Therapy: Clinical Case Report
Authors: Tosta Maria Eduarda , Furlan Juliana Tomazeli , Borchardt Lara , Camilotti Veridiana , Dal Bosco Leonardo , Crestani Nathalia Assolini
Published: December 2024

INTRODUCTION: Ozone therapy has been used as an effective alternative for aesthetic treatments and facial aging, as it induces changes in facial cells, stimulates collagen synthesis, activates peripheral circulation and microcirculation, and slows down the processes of oxidation and skin aging.

OBJECTIVES: This study aims to evaluate the effects of ozone therapy in treating facial aging through a clinical case report.

CASE DESCRIPTION: A case report on the treatment of facial aging with ozone therapy is presented. Six clinical sessions were conducted, with seven-day intervals between them, applying one ml of medical ozone to each demarcated area. The ozone concentration increased over time, starting at five mcg/mL and reaching 12 mcg/mL.

RESULTS: The six-session ozone therapy protocol showed promising results in treating facial aging by reducing expression lines and stimulating collagen synthesis.

CONCLUSION: Ozone therapy is an effective alternative for the biostimulation of collagen and other mechanisms that improve facial tissue aesthetics, helping to restore the appearance of aging skin.
Fermat Polynomials and Extended Fermat’s Theorem
Authors: Alsaud Huda , Carbó-Dorca Ramon
Published: December 2024

This study discusses the connection between Fermat perfect natural vectors and some specific Fermat polynomials, whose maximal root is a natural number forming part of the Fermat vector radius. Apart from the nature and construction of Fermat’s polynomials, some examples of application are given. If found as natural numbers, calculating the maximal roots of Fermat’s polynomials constitutes an alternative algorithm to find out Fermat’s vectors.
An introduction to the short fiction of H. E. Bates
Authors:   , Vannatta Dennis P.
Published: December 2024

This dissertation offers an extensive introduction to the short fiction of H. E. Bates, a writer whose short stories and novellas have been praised as some of the finest produced by a British author in the twentieth century. The need for such an introduction is defended in the first chapter; despite Bates's high reputation among a select following, his work has been virtually ignored by serious scholars. The first chapter also includes a brief biographical sketch of Bates, emphasizing those features which later have an impact on his fiction. The second chapter contains an analysis of Bates's short fiction aesthetic; examined are his criticisms of fellow writers, the writers who were most influential in his development, and his theoretical observations on fiction writing. In particular, the influence of Chekhov and Maupassant is examined at some length, together with Bates's insistence on a pictorial style, rich atmosphere, inference and implication, and open endings. The next three chapters focus on Bates's works, with broader observations regarding the direction of his fiction supported by close readings of selected stories. The third chapter focusses on the early years of Bates's career, through 1932. During this time a richly painted atmosphere is the keynote of his work, as seen in the deceptively simple tales of Midland folk. The fourth chapter encompasses the middle years, 1933-1943. Here a growing interest in characterization is discerned. This interest in characterization, along with his masterful handling of atmosphere, makes the middle years the most fruitful of Bates's career. Toward the end of this period, the effects of time and social change become an increasingly important theme. Unfortunately, the quality of his work seems to decline in the latter part of the middle years. The fifth chapter focusses on the later years of Bates's career--1944 to his death. This period is marked by the zenith of Bates's fame and financial success, concurrent with growing critical dissatisfaction with his work. This chapter is divided into two sections, one each for the novella and the short story in the later years. It was in these years that Bates became one of the most prolific and highly praised writers of novellas in English. A brief summary of Bates's major themes and methods, together with observations on his eventual place in the history of English literature, comprises the sixth chapter. The quality and quantity of his short fiction suggest that Bates deserves recognition as a major figure in twentieth-century British short fiction. However, the curiously tenuous position that short-story writers often hold in the eyes of many scholars probably dooms him to a position of minor importance in English literary history. Two appendices--a checklist of Bates's publications plus an annotated checklist of scholarship concerning Bates's short fiction--follow the text of this dissertation.
J-integral characterization of fatigue crack growth
Authors:   , Ishak Abdul Rahman
Published: December 2024

This paper extends fracture mechanics analyses of fatigue crack growth to the J-integral method of analysis. Compact tension specimens of A533B steel and 2024-T351 aluminum were subjected to cyclic loading and fatigue crack growth rates obtained. The values of cyclic J, that is [delta] J, were evaluated from the area under load-deflection curves. Several predetermined definitions were used in the evaluation of [delta] J in an attempt to investigate the effect of load ratio and the crack closure phenomenon. The results show agreement between values of [delta] J calculated from the area under load deflection curves and those obtained from the functional relationship between J and K (the stress intensity factor). Also another parameter, the effective cyclic J, [delta] Jeff (which accounts for crack closure effect), turns out to be a very significant finding for the relationship between the fatigue crack orowth rate (da/dN) and this quantity is independent of stress ratio and resulted in a linear relationship within the range of da/dN investigated. It is hoped that the results of this paper will provide further insights into the limitations or applicability of the J-integral concept especially as applied to cyclic loading in the elastic-plastic regime.
Electrochemical carbon dioxide concentration
Authors:   , Toghiani-Doulatabadi Hossein
Published: December 2024

"The average man requires some 1.84 lbs of oxygen per day and generates approximately 2.2 lbs CO2 per day. In manned spacecraft missions, the expense of maintaining separate oxygen supply and carbon dioxide removal systems direct current attention to a dual performance system, one which not only removes carbon dioxide but generates oxygen simultaneously. An early system which performed this task was the aqueous alkaline carbon dioxide concentrator. The aqueous carbon dioxide concentrator using cesium carbonate as the electrolyte performed successfully with high relative humidities ([greater than] 60 percent RH). Below 60 percent relative humidity, drying of the electrolyte induces CsHCO3 precipitation at the anode which in turn allows hydrogen crossover to the cathode to take place. Although control of humidity is possible, it is not desirable since such control not only increases capital and operating cost but also increases total system equivalent weight. Thus, it is desirable to use an electrolyte which can function at a broad range of relative humidity. One such electrolyte is tetramethyl amonium carbonate. Its solution, having a lower vapor pressure than cesium carbonate, permits cell operation at relative humidities as low as 35 percent. The success of the aqueous carbon dioxide concentrator suggests using a similar device utilizing a molten salt as the electrolyte. Operation of a concentrator using a molten salt electrolyte offers the advantage of being insensitive to relative humidity. The molten salt electrolyte also possesses a more highly concentrated ionic field, yielding high thermal and electrical conductivities for the electrolyte. High conductance is a desirable property, requiring less area of contact. Use of noble metal electrodes in the aqueous cell permits high power and current density and long cell duration. In a high temperature cell the need for noble metal electrodes is reduced since non-noble metals are available, which, at cell operating temperatures, are catalytically active enough for both cathodic and anodic reactions. An electrochemical cell utilizing a molten carbonate electrolyte is an obvious extension to higher temperature from the aqueous concentrator. While these devices have been used for fuel cells, they have not been tested as CO2 concentrator."--Introduction.
The combination of qualitative forecasts
Authors:   , Feather Peter M.
Published: December 2024

Composite forecasting has received increasing attention in the literature. However, with the exception of Feather and Kaylen (1987), previous studies of composite forecasting have only considered the combination of cardinal forecasts. Despite the growing importance of qualitative models, the resolution of conflicting qualitative forecasts has received little attention. The main objective of this thesis is the development of a method to combine qualitative forecasts. The second objective of this thesis is to apply the theoretical model to the combination of signals generated from three technical trading systems. For illustrative purposes, five live cattle and six corn futures contracts are used. Out-of-sample forecasts made by the composite and individual trading systems are evaluated by the number of correct positions forecast and profit. The results of this study indicate that the proposed composite method performs well.
Equilibrium composition and thermodynamic property calculation for general hydrocarbon combustion
Authors:   , Homsi Maher Adnan
Published: December 2024

A computer program was developed for the calculation of the equilibrium composition and thermodynamic properties of the high temperature combustion products that results from general hydrocarbon combustion. An ideal gas mixture consisting solely of CO2, H2O, N2, O2, CO, OH, H2, O, H, NO, and NO2 is assumed. The equilibrium composition is evaluated, for a given pressure, temperature, and atom mixture, by solving the appropriate set of simultaneous linear algebraic conservation of atom and nonlinear law of mass action equations. Once the equilibrium composition is determined, the thermodynamic properties are calculated applying ideal gas mixture rules. Ail individual gas specie properties are evaluated utilizing sixth-order temperature curvefits of the specific heat. The performance of the computer program was demonstrated by considering the combustion of a particular natural gas mixture with air.
Alternative marketing strategies from Missouri slaughter hog producers
Authors:   , Gure Mohamud Mohamed
Published: December 2024

Hog producers operate in markets with highly variable prices and rising production costs. Because of volatile prices, returns to hog operations have been highly variable making this a risky enterprise. In these times of volatile prices, it is important to establish a market goal and develop marketing strategies, the producer wnats those strategies that produce a higher level of profit and lower level of variance of profits over time. Cash contracts, futures market contracts, and the combinations of these two are ways to achieve this goal. This study simulated the mean return and variance of return of six strategies for the period 1972-86. The simulated means and variances were compared to the actual mean returns and variances of returns received by the producer 105 days later. The strategies used were (a) Cash only, (b) Full hedge, (c) Full cash contract, (d) half hedge half cash, (e) half hedge - half cash contract, and(f) half cash-half cash contract. The full hedge, half hedge-half cash and cash only strategies performed the best in both the simulated and the actual activities. Full hedge had the highest mean return and the second highest variance in the simulations. Cash only had the highest, mean return and variance of return in the actual computations. Full cash contract had the lowest variance and mean in both the simulations and the actual situations. There is no guarantee that the strategies which produced the highestmean returns for he period in this study would continue to do so in the future. Different levels of risk aversion could lead hog producers to choose different marketing strategies. The futures market is a legitimate marketing tool available to hog producers-one offering many advantages that cash-market alternative cannot.
A study on two multiaxial creep theories
Authors:   , Jang Tae-sa
Published: December 2024

Two multiaxial creep theories, a modified creep hardening surface model proposed by Murakamy and Ohno and a unified creep-plasticity model by Robinson, are evaluated by comparing their theoretical predictions with available creep test data of 304 stainless steel under variable stresses of combined tension and torsion at 593 [degrees] C. The material constants of each model were determined by trial and error methods for best fitting of theoretical curves to creep test data under constant stresses. The evaluation of each theory was made in view of its proper predictability of plastic and creep behavior of the material under step changes of stresses including unloading, reloading and stress reversals. Also, the prediction by a classical strain hardening theory was compared with the modified creep hardening surface model. The modified creep hardening surface model predicted much greater creep rates than the test data for most of reloadings and step-up stress changes, but the modified creep hardening surface model had good agreements for creep under stress reversals in torsion. The unified creep plasticity model predicted much larger plastic and creep strain than the test data upon reloading following complete unloading and some step-up stress changes as well as stress reversals. A good agreement was found for partial unloading and reloading to the same initial stress level.
Place names of six counties in southeast Missouri
Authors:   , Hamlett Mayme Lucille
Published: December 2024

Counties: Bollinger, Cape Girardeau, Madison, Perry, Reynolds, and Wayne Counties. "This study is in many ways unique. It is the last of the series. In 1928 a survey of Missouri place names was suggested by Dr. Allen Walker Read, then of the University of Missouri. The work has been supervised by Dr. Robert L. Ramsay of the English Department. Now after seventeen years the studies are being completed. After the information was collected as described, checked, and written in final form as found in the Dictionary (Chapter One), the names were separated into five classes: Borrowed Names, Historical Names, Personal Names, Environmental Names, and Cultural Names (called Subjective Names in the earlier theses). Unsolved Names were grouped in a sixth division."--Introduction.
The Chinese mind : a study in race psychology
Authors:   , Creighton J. W.
Published: December 2024

"If the Chinese men and women of like passions and abilities as ourselves, we are free to develop Chinese education on lines similar to those in the West, always being able to use the results of western progress in the solutions of the problems of the East. If, on the other hand, there are wide racial differences, it is encumbent upon educators to study these differences and evaluate them carefully as a preliminary step in the great work of education of China. Before a course of study is adopted, before a system of schools built after a foreign model is organized, it would seem wise to attack the problem at the very bottom and seek to find out all we can of the native ability of the Chinese himself. Such is the purpose of this study, and with such a purpose it seeks to contribute something toward the practical solution of some of the great problems of Chinese education."--Text taken from page 4.
An investigation of the relation between vegetative and reproductive activity in plants
Authors:   , Winkler Charles Herman
Published: December 2024

"It is the purpose of this investigation to study this relationship between vegetative and reproductive activity, to present evidence showing to what extent it may be influenced and modified by external conditions or cultural practices, and in so far as is possible, in the light of our present knowledge, to discuss the physiological changes involved in the response to such practices."--Text taken from page 1-2.
Densities of spherical molecules and their mixtures
Authors:   , Herring William A. Jr.
Published: December 2024

"The volume change on mixing, or, excess volume, observed when two pure liquids of different molecular species are mixed is correlated to the dissimilarities in molecular properties including intermolecular forces, shape, size, and polarity. It would then follow that any theory designed to interpret or evaluate the molecular properties of liquids must be able to predict the volume changes on mixing. Existing theories have been shown to effectively predict the properties of mixtures of spherical, nonpolar molecules of equal size, and it would logically follow that the study of liquid systems comprised of spherical nonpolar molecules significantly different in size would be of high priority. One such liquid system is highly suitable for this work, that of carbon tetrachloride (CC14) and octamethylcyclotetrasiloxane (OMCTS). The only two investigations (30, 33) conducted employing this particular liquid system produced inconsistent results--results so inconsistent as to totally obscure their use in any quantitative tests of the theories. The intent of this investigation was to gather high accuracy density data with three distinct purposes in mind. The first of these was the resolution of the differences in values for experimental excess volumes available in existing literature. Secondly, these data in the form of excess volumes were utilized in testing various theories of the liquid state, as well as in providing the support for suggested improvements of these same theories. Thirdly, these measurements are an integral portion of a concurrent study at this laboratory, which will result in high accuracy pressure-volume-temperature-mole fraction data that will be beneficial in the examination of the present liquid theories. Coincidental with the aforementioned purposes was the generation of density data beyond the temperature range of any already in existence."--Page 1.
Critique of the political self : criticism of the conceptual adequacy of political culture from the perspective of Plato, Hobbes, Montesquieu, and Kant
Authors:   , Kim Jong Sul
Published: December 2024

The last four decades' national bifurcation in Korea reflects not only the international power struggle between powerful foreign nations but also their ideological conflict. Under the assumption that the internalization by the Korean people of the conflict between incompatible ideologies developed in foreign countries is likely to have caused division in the mind of the Korean people, the conceptual adequacy of political culture to deal with the totality of the political self is examined. An attempt to form a concept to deal with the total political mind is made by reviewing great Western political thinkers' conception of the political self. It is demonstrated that the political self has two component parts: the observed political self and the observing one. In light of the broad conception of the political self, the examination of the definition of political culture shows its nature as being identical with the observed political self. The implication is that, without the synthetic and unifying function of the observing political self, the concept of political culture is likely to foster division in the self. At the same time, it is also found that the observing political self is hidden behind the facade of valuefree political science. There is a danger that this illegitimate part of the concept of political culture replaces the true observing self of the people who are under the great ideological influence of foreign nations.
Maximal multiplicity and bifurcation in a CSTR with two consecutive first order reactions
Authors:   , Berdouzi Brahim
Published: December 2024

The steady state equation of a continuous stirred tank reactor is considered in the frame work of singularity theory. The maximal multiplicity of seven is obtained. The importance of the bifurcation parameter is studied and a new normal form equivalent to the original function is obtained. This normal form corresponds to the most degenerate singularity and its universal unfolding can predict all the bifurcation diagrams existing for this problem.
A theoretical examination of the growth and attenuation of acoustic and entropy waves in ideal MHD generators
Authors:   , Kulkarni Manohar Ramchandra
Published: December 2024

The results of a theoretical investigation of the interaction between electromagnetic fields and acoustic and entropy waves in a partially ionized gas are presented. The effects of this interaction for combustion-driven magnetohydrodynamic (MHD) generators are provided in terms of nine frequency dependent transmission and reflection coefficients. The important finding of this study is that generators having certain configurations will be subjected to large increases in amplitude of at least one of the traveling waves, and thus lead to large fluctuations in plasma properties with a consequent degradation of generator performance. This is especially true for the downstream propagating temperature (entropy) fluctuation, which creates rather significant amounts of fluctuations in the acoustic (pressure) waves. Previous theoretical studies have indicated that the Faraday generators which are "stable" at low magnetic field strength may be "unstable" at high magnetic field strength. In the present study, such adverse effect on stability is observed for both the Faraday and the DCW generators. The results have been obtained at four different frequencies of perturbation varying from 1 Hz to 1000 Hz.
THE INFLUENCE OF VARIOUS PLANTING MEDIA COMPOSITIONS AND CONCENTRATIONS OF GROWTH REGULATORY SUBSTANCES ON THE YIELD OF GREAT RED CHILLI
Authors: Agus Aji Susanto  , Avisema Sigit Saputro
Published: December 2024

Large red chilies (Capsicum annuum L.) have high economic value in the Indonesian market. The large market demand for horticultural products provides high opportunities for farmers to increase their production, including red chilies. Efforts to get high red chili yields by using good planting media and the application of organic ZPT. This research aims to examine the composition of growing media and PGR on the generative phase of red chilies. This research was carried out from 15 May 2023 to 21 August 2023. The design used in the research was a Completely Randomized Design (CRD) which consisted of 2 treatment factors which were repeated 3 times and then 12 treatment combinations were obtained. The first factor is the composition of the growing media (M), which consists of 3 levels, namely; composition 1 : 1 : 1 (M1), composition 2 : 1 : 2 (M2), and composition 1 : 2 : 1 (M3). The second factor is the concentration of organic PGR (Z), which consists of 4 levels, namely; concentration of 0 ml/l (M0), concentration of 5 ml/l (M1), concentration of 10 ml/l (M2), and concentration of 20 ml/l (M3). The parameters observed were the appearance of the first flower, number of fruit, fruit length, fruit diameter, and fruit weight on large red chilies. Analysis of variance was carried out to analyze the data and then subjected to the Least Significant Difference (LSD) test with a level of 5%. The research results showed that the two treatment factors had no influence or were not significantly different on all observed parameters. There was no interaction between the composition of the growth media and the concentration of organic PGRs for all observation parameters.
FACTORS AFFECTING THE SUSTAINABILITY OF PORANG FARMING BUSINESSES IN PURWOREJO DISTRICT
Authors: Ihfaningrum Aziz , Masyhuri  , Suryantini Any
Published: December 2024

The popularity and existence of porang plants have decreased. The price of porang tubers has decreased drastically. The sustainability of porang farming is influenced by various factors. The purpose of this study was to determine the factors that influence the sustainability of porang farming in Purworejo Regency. The analysis tool used was multiple linear regression with the least squares analysis method or One Least Square (OLS). The results of the study showed that the factors that had a positive effect on the sustainability of porang farming in Purworejo Regency were land area and porang price, while farming experience and farmer age had a negative effect.
Keywords: porang, One Least Square (OLS), sustainability
GROWTH RESPONSE OF PAGODA MUSTARD PLANTS (Brassica narinosa L.) TO THE APPLICATION OF JELLYFISH LIQUID ORGANIC FERTILIZER
Authors: Pratiwi Sri Hariningih , Afdila Moch. Faizin , Purnamasari Retno Tri , Hidayanto Fajar
Published: December 2024

Excessive use of chemical fertilizers can reduce soil quality and fertility, and is not environmentally friendly. One organic fertilizer that can overcome the problem of agricultural land damage is liquid organic fertilizer. Liquid organic fertilizer that can be used as fertilizer is jellyfish marine biota. This research aims to determine the right dose of jellyfish liquid organic fertilizer to produce high growth and yield of pagoda mustard plants.This research used a non-factorial Randomized Group Design (RAK) consisting of four treatments. Each treatment was repeated six times as follows: P0: Urea 150 kg/ha (control); P1: jellyfish POC 5 ml/l; P2: jellyfish POC 10 ml/l; P3: POC jellyfish 15 ml/l. Data obtained from the research were analyzed using analysis of variance (F test), if there was a real effect, was with the BNT test at the 5% level. The results showed that applying jellyfish POC fertilizer could increase total plant dry weight, leaf area index, net assimilation rate and plant growth rate. Treatment of jellyfish POC with a dose of 15 ml/l and treatment of 10 ml/l with the addition of 150 kg of urea fertilizer were treatments with higher results.
Keywords: Liquid organic fertilizer, pagoda mustard greens, jellyfish
Domain-Driven Data Architecture for Enterprise HR-Finance Systems : Bridging Workday Analytics with Modern Data Platforms
Authors: Sudheer Devaraju  , Tracy Boyd
Published: December 2024

This research presents an architectural framework based on DDD principles to integrate Workday with cloud-native data platforms. We propose a comprehensive architectural pattern that divides HR-Finance domains into bounded contexts, preserving data lineage and semantic consistency across the enterprise ecosystem. A Proof of Concept was implemented across three Fortune 500 organizations, reducing data integration complexity by 67% and improving analytical query performance by 3.2x over the typical ETL approach. To preserve context across HR and financial domains while ensuring consistency and enabling domain-specific optimization, the study introduces a "semantic bridge" pattern. Empirical evidence demonstrates that, in modern data architectures, it is possible to achieve a 78% reduction in reconciliation efforts and a 91% improvement in real-time reporting accuracy. We validate this framework for enterprises migrating to cloud-native analytics platforms.
Exploring AI-Driven Cloud-Edge Orchestration for IoT Applications
Authors: Vijay Ramamoorthi
Published: December 2024

The integration of Artificial Intelligence (AI), cloud computing, and edge computing has transformed the Internet of Things (IoT) ecosystem by addressing critical challenges such as latency, scalability, resource management, and fault tolerance. IoT applications generate massive amounts of data, requiring real-time decision-making and efficient resource allocation, which traditional cloud-centric architectures often fail to deliver due to inherent latency and bandwidth limitations. Edge computing, as a decentralized extension of the cloud, brings computation closer to the data source, reducing latency and enabling real-time analytics. However, the dynamic and heterogeneous nature of cloud-edge systems presents significant orchestration challenges. This paper explores how AI-driven optimization enhances cloud-edge orchestration by improving task scheduling, predictive analytics, and data processing. AI models, such as reinforcement learning, neural networks, and bio-inspired algorithms, enable dynamic workload distribution, proactive resource allocation, and energy-efficient operations, thereby improving system reliability and scalability. Furthermore, the study highlights innovative integration models, including hierarchical, collaborative, and federated approaches, which cater to diverse IoT requirements by balancing the computational power of the cloud with the agility of edge nodes. Through an extensive review of recent research, this study identifies key challenges in data privacy, scalability, real-time orchestration, and fault tolerance, while also exploring novel opportunities, such as privacy-aware federated learning frameworks, lightweight AI models for edge devices, blockchain for fault resilience, and bio-inspired energy optimization techniques. Real-world use cases in domains such as smart manufacturing, autonomous vehicles, and healthcare demonstrate the practical benefits of AI-powered orchestration, showcasing reductions in latency and energy consumption alongside improvements in system scalability and responsiveness.
Integration Patterns in Unified AI and Cloud Platforms: A Systematic Review of Process Automation Technologies
Authors: Sushil Prabhu Prabhakaran
Published: December 2024

This article comprehensively analyzes unified AI and cloud platforms, examining their role in transforming process automation and decision systems across industries. The article investigates the architectural frameworks and integration patterns that enable the convergence of AI tools, machine learning operations, and workflow orchestration within cloud-native environments. The article explores key innovations, including federated AI implementations, real-time data processing architectures, and multi-cloud integration patterns. It provides insights into their practical applications across finance, healthcare, retail, and manufacturing sectors. The article identifies critical success factors in platform implementation, including integrating MLOps frameworks, automated decision engines, and compliance tools for AI governance. Through case study analysis and architectural evaluation, we demonstrate how unified platforms address traditional challenges in AI deployment while enabling scalable, cost-efficient solutions. The findings reveal emerging patterns in platform architecture that facilitate seamless integration of edge computing, real-time analytics, and distributed AI systems, contributing to the broader understanding of enterprise AI implementation strategies. This article provides valuable insights for researchers and practitioners in cloud engineering, artificial intelligence, and systems integration while highlighting future directions for platform evolution and standardization.
Transparent Compliance Management in DevOps Using Explainable AI for Risk Assessment
Authors: Sandeep Belidhe
Published: December 2024

In this fast-evolving field of DevOps, the issue of compliance with the set and required regulatory and security standards is a vital but rather challenging endeavour. Typically, traditional methods of managing compliance prevent the organization and its employees from obtaining important information about risks, which hinders risk assessment mechanisms. To carry out this research, the main topic of this paper is: How to enable transparency in DevOps compliance management using Explainable Artificial Intelligence (XAI). Using XAI allows organizations to improve the ability of their automated risk assessment system and compliance processes to be both explainable and auditable. XAI models make it easy for DevOps teams to understand how decisions are made, address risks before they occur, and meet regulatory requirements. Also, this approach enhances stakeholder cooperation since different technical and non-technical teams can understand compliance information. Concerning risk management, DevOps automates the deployment of new AI models. At the same time, the information explained to users by XAI enhances existing procedures, fosters trust in AI systems, and develops a robust containment and ongoing compliance scheme for AI-enhanced services as technology and regulation evolve.
Особливості управління бізнес-ризиками малих підприємств в умовах війни
Authors: Коробка С. В.
Published: December 2024

У пропонованому дослідженні подаються особливості управління бізнес- ризиками малих підприємств в умовах війни. Описано історію та еволюцію поняття “бізнес-ризик” у підприємництві. Репрезентовані різноманітні підходи до визначення сутності категорії ризики. Подано класифікацію та узагальнено етапи процесу управління бізнес-ризиками у діяльності малих підприємств. Запропоновано стратегії управління бізнес-ризиками малих підприємств в умовах війни.
Зазначено, що бізнес-ризик, як поняття зазнає постійних змін, наповнюється додатковим змістом та набуває нових видів. Управління ризиками в умовах війни передбачає їх постійне оцінювання та планування на випередження. Створення передумов для гнучкості й адаптивності до бізнес- ризиків у діяльності малих підприємств є запорукою їх прибутковості та подальшого розвитку, особливо в умовах війни. Все це у своїй сукупності підвищує необхідність врахування бізнес ризиків в діяльності малих підприємств, а відтак стає одним з ключових чинників його подальшого розвитку.

Ключові слова: ризики, бізнес-ризики, управління, види бізнес-ризиків, фактори бізнес-ризиків.