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Reservoir quality evaluation of.the Narimba f.rmation in Bass Basin,Australia:Implications f.om petrophysical analysis,sedimentological f.atures,capillary pressure and wetting f.uid saturation

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Energy Geoscience 2024年第1期5卷 37-53页

作者： Waf. Abdul Qader Al-Ojaili Mohamed Ragab Shalaby Wilf.ied bauer Department of.Applied Geosciences German University of Technology in OmanOman Geology Department Faculty of ScienceUniversity of Brunei DarussalamBrunei Darussalam Geology Department Faculty of SciencesTanta UniversityTanta31527Egypt

The evaluation of.reservoir quality was accomplished on the Late Paleocene to Early Eocene Narimba f.rmation in Bass Basin,*** study involved combination methods such as petrophysical analysis,petrography and sedimentological studies,reservoir quality and f.uid f.ow units f.om derivative parameters,and capillary pressure and wetting f.uid saturation *** and diagenetic f.atures are af.ecting the reservoir ***,compaction,and presence of.clay minerals such as kaolinite are f.und to reduce the quality while dissolution and secondary porosity are noticed to improve *** is believed that the Narimba f.rmation is a potential reservoir with a wide range of.porosity and *** ranges f.om 3.1%to 25.4%with a mean of.15.84%,while permeability ranges between 0.01 mD and 510 mD,with a mean of.31.05 *** on the heterogenous lithology,the f.rmation has been categorized into f.ve groups based on permeability *** I showed an excellent to good quality reservoir with coarse *** impacts of.both textural and diagenetic f.atures improve the reservoir and producing higher reservoir quality index(RQI)and f.ow zone indicators(f.I)as well as mostly mega *** non-wetting f.uid migration has the higher possibility to f.ow in the f.rmation while displacement pressure recorded as *** II showed a f.ir quality reservoir with lower petrophysical properties in macro *** irreducible water saturation is increasing while the textural and digenetic properties are still enhancing the reservoir *** III ref.ects lower quality reservoir with mostly macro pores and higher displacement *** may indicate smaller grain size and increasing amount of.cement and clay *** IV,and V are interpreted as a poor-quality reservoir that has lower RQI and *** textural and digenetic f.atures are negatively af.ecting the reservoir and are leading to smaller pore size and pore throat radii(r35)

关键词： Narimba f.rmation Petrophysics Reservoir quality Capillary pressure Wetting f.uid saturation

Two-Stream Approximation to the Radiative Transf.r Equation:A New Improvement and Comparative Accuracy with Existing Methods

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Advances in Atmospheric Sciences 2024年第2期41卷 278-292页

作者： f.Momo TEMGOUA L.Akana NGUIMDO DNJOMO Environmental Energy Technologies Laboratory(EETL) Faculty of SciencesUniversity of YaoundéPO Box 812 YaoundéCameroon Department of.Electrical and Electronic Engineering Faculty of Engineering and TechnologyUniversity of BueaPO Box 63 BueaCameroon

Mathematical modeling of.the interaction between solar radiation and the Earth's atmosphere is f.rmalized by the radiative transf.r equation(RTE), whose resolution calls f.r two-stream approximations among other methods. This paper proposes a new two-stream approximation of.the RTE with the development of.the phase f.nction and the intensity into a third-order series of.Legendre polynomials. This new approach, which adds one more term in the expression of.the intensity and the phase f.nction, allows in the conditions of.a plane parallel atmosphere a new mathematical f.rmulation of.γparameters. It is then compared to the Eddington, Hemispheric Constant, Quadrature, Combined Delta f.nction and Modif.ed Eddington, and second-order approximation methods with ref.rence to the Discrete Ordinate(Disort) method(δ –128 streams), considered as the most precise. This work also determines the conversion f.nction of.the proposed New Method using the f.ndamental def.nition of.two-stream approximation(f.TSA) developed in a previous work. Notably,New Method has generally better precision compared to the second-order approximation and Hemispheric Constant methods. Compared to the Quadrature and Eddington methods, New Method shows very good precision f.r wide domains of.the zenith angle μ 0, but tends to deviate f.om the Disort method with the zenith angle, especially f.r high values of.optical thickness. In spite of.this divergence in ref.ectance f.r high values of.optical thickness, very strong correlation with the Disort method(R ≈ 1) was obtained f.r most cases of.optical thickness in this study. An analysis of.the Legendre polynomial series f.r simple f.nctions shows that the high precision is due to the f.ct that the approximated f.nctions ameliorate the accuracy when the order of.approximation increases, although it has been proven that there is a limit order depending on the f.nction f.om which the precision is lost. This observation indicates that increasing the order of.app

关键词： Radiative Transf.r Equation two-stream method Legendre polynomial optical thickness moments of.specif.c intensity conversion f.nction transmittance ref.ectance

The Importance of.Posterior Tibial Slope in TKR: Pre and Post-Operative Measurements in United States Osteoarthritic Patients

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Open Journal of.Orthopedics 2024年第8期14卷 374-379页

作者： f.ederick f. Buechel Sr f.ederick f. Buechel Jr Rutgers New Jersey Medical School Department of Orthopaedic Surgery Newark USA Lenox Hill Hospital Department of Orthopaedic Surgery New York USA

Background: Sagittal plane placement of.the tibial component in total knee replacement (TKR) has important implications f.r maximizing the range of.f.exion motion, allowing collateral ligaments to f.nction more normally, as well as providing ideal compressive loading on the tibial bone-prosthesis interf.ce. This study attempts to quantif. the normal posterior tibial slope (PTS) angle pre-operatively and post-operatively in osteoarthritic patients af.er using a conventional extramedullary tibial resection guide to assess its ef.ectiveness. Methods: f.rty-nine primary cementless total knee replacements in 34 osteoarthritic patients were measured radiographically pre-operatively and one year post-operatively to determine the PTS and its ef.ect on range of.motion. Lateral X-rays, using the anterior cortical line of.the tibia, were employed f.r all measurements. Results: Pre-operative PTS measured 11.83˚ (range 5˚ - 18˚), while post-operative PTS of.implanted tibial components measured 11.30o (range 4˚ - 18˚). The pre-operative range of.motion of.112˚ (range 30˚ to 135˚) was improved to 119˚ (range 90˚ to 135˚) post-operatively af.er 1 year. Conclusions: Anterior tibial shaf. ref.rencing using a conventional extramedullary tibial resection guide provides an easy and convenient method f.r reproducing the anatomical PTS during TKR. This methodology provided improvement in average range of.motion f.om 112˚ pre-operatively to 119˚ post-operatively at one year.

关键词： Posterior Tibial Slope Posterior Tibial Inclination Extramedullary Tibial Resection Guide Total Knee Alignment

Clinical studies in COVID-related olf.ctory disorders:Review of.an institutional experience

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World Journal of.Otorhinolaryngology-Head and Neck Surgery 2024年第2期10卷 129-136页

作者： Theresa Tharakan Dorina Kallogjeri Jay f.Piccirillo Department of.Otolaryngology-Head and Neck Surgery Clinical Outcomes Research OfficeSchool of MedicineWashington University in St LouisSt LouisMissouriUSA

Objective:To share a single institutional experience with clinical research on COVID-related olf.ctory dysf.nction(OD).Data Source/Method:Narrative review of.published original data and ongoing clinical trials on COVID-related OD at Washington University f.om 2020 to ***:There were three new diagnostic-/patient-reported outcome measures developed and *** report f.ve clinical trials of.interventions f.r COVID-related olf.ctory disorders:combined Visual-Olf.ctory Training(VOLT)with patient-pref.rred scents versus standard olf.ctory training(VOLT trial),oral gabapentin versus placebo(Gabapentin f.r the Relief.of.Acquired Chemosensory Experience trial),nasal theophylline irrigations versus placebo(Smell Changes and Ef.icacy of.Nasal Theophylline trial),stellate ganglion block(single-arm),and mindf.lness-based stress reduction(MBSR)versus lif.style intervention(MBSR trial).Conclusions:Initial intervention trials f.r COVID-related OD have shown potential f.r improving subjective and objective olf.ctory ***,there remains no gold standard treatment that def.nitively outperf.rms placebo in controlled ***,continued investigation of.novel therapeutic strategies f.r COVID-related OD is necessary to maximize olf.ctory outcomes f.r af.ected patients.

关键词： chemosensory disorders COVID olf.ctory dysf.nction

Experienced Involvement (ExIn) in Social-Psychiatric Care of.Germany-Challenges and Chances

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Sociology Study 2024年第3期14卷 129-142页

作者： Susanne Iris bauer f.lda University of.Applied Sciences FuldaGermany

This study explores the integration of.Experienced Involvement(ExIn)in social-psychiatric care in Germany,emphasizing both the challenges and opportunities it *** European Leonardo da Vinci Project(2005-2007)established a curriculum f.r ExIn,promoting participatory structures in psychiatric *** peer support is well-established in other European countries,Germany’s experience is still *** research uses a mixed methods design,combining quantitative surveys and qualitative interviews,to investigate the prof.ssional experiences of.ExIn recovery companions and team colleagues in German clinics and support *** f.ndings reveal numerous benef.ts:f.r social-psychiatric services,ExIn enhances service quality,inclusivity,and accessibility;f.r team colleagues,it f.sters ref.exivity,hope,and trust,and improves self.care;f.r service users,it provides empowerment,easy access to support,trust,and hope,and of.ers credible role *** these benef.ts,challenges such as stigmatization,lack of.recognition,and f.nancial constraints remain and require to be *** study highlights the need and provides implications f.r a dedicated and inclusive approach to ef.ectively implementing ExIn,ultimately enriching psychiatric care through experiential knowledge and reducing prejudice within mental health services.

关键词： peer involvement prof.ssionalized peer support social psychiatry inclusion education of.social works

On an Invariant of.Tournament Digraphs

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Journal of.Applied Mathematics and Physics 2024年第7期12卷 2711-2722页

作者： Boris f. Melnikov Bowen Liu f.culty of.Computational Mathematics and Cybernetics Shenzhen MSU-BIT University Shenzhen China

To date, it is unknown whether it is possible to construct a complete graph invariant in polynomial time, so f.st algorithms f.r checking non-isomorphism are important, including heuristic algorithms, and f.r successf.l implementations of.such heuristics, both the tasks of.some modif.cation of.previously described graph invariants and the description of.new invariants remain relevant. Many of.the described invariants make it possible to distinguish a larger number of.graphs in the real time of.a computer program. In this paper, we propose an invariant f.r a special kind of.directed graphs, namely, f.r tournaments. The last ones, f.om our point of.view, are interesting because when f.xing the order of.vertices, the number of.dif.erent tournaments is exactly equal to the number of.undirected graphs, also with f.xing the order of.vertices. In the invariant we are considering, all possible tournaments consisting of.a subset of.vertices of.a given digraph with the same set of.arcs are iterated over. f.r such subset tournaments, the places are calculated in the usual way, which are summed up to obtain the f.nal values of.the points of.the vertices;these points f.rm the proposed invariant. As we expected, calculations of.the new invariant showed that it does not coincide with the most natural invariant f.r tournaments, in which the number of.points is calculated f.r each participant. So f.r, we have conducted a small number of.computational experiments, and the minimum value of.the pair correlation between the sequences representing these two invariants that we f.und is f.r dimension 15.

关键词： Graph Directed Graph Tournament ?nvariant

Impaired Cognition and Stroke Rehabilitation Outcomes: Are They Related?

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Open Journal of.Therapy and Rehabilitation 2024年第2期12卷 101-116页

作者： Eric f. Tanlaka Torri Trojand f.culty of.Nursing University of Windsor Windsor Canada

Background: Stroke survivors who exhibit impaired cognition at admission to inpatient rehabilitation may experience participation challenges and poorer f.nctional outcomes than those without impaired cognition. Dif.erences in f.nctional outcomes between stroke survivors with and without impaired cognition may be attributed to age, level of.cognitive impairment, and severity of.stroke. Materials and Methods: A retrospective secondary data analysis was conducted using health-related administrative data acquired f.om a Southwestern Ontario hospital’s stroke rehabilitation database. The aim was to explore potential linkages between post-stroke impaired cognition and f.nctional gains, rehabilitation stays, and living settings af.er discharge f.om rehabilitation. Results: An aggregate sample of.393 males and 314 f.males subclassif.ed as experiencing mild, moderate, and severe stroke was analyzed. At inpatient rehabilitation admission, 21.5% (n = 152) of.these patients had no impaired cognition, 33.7% (n = 238) had mild impaired cognition, 22.2% (n = 157) had moderate impaired cognition, and 22.6% (n = 160) had severe impaired cognition. Cognitively impaired stroke patients were signif.cantly (p 0.001) older, had (mostly) moderate to severe stroke with signif.cantly (p = 0.012) more moderate cognitive impairment, had signif.cantly (p 0.001) longer rehabilitation stays, and a high propensity f.r being discharged to longer-term care f.cilities compared to non-cognitively impaired patients. Conclusion: Presence of.signif.cant dissimilarity in rehabilitation stays and post-discharge destinations among stroke survivors with and without cognitive impairment is attributed to the age of.the patient, level of.cognitive impairment, and rigorous rehabilitation interventions.

关键词： Stroke Impaired Cognition Inpatient Rehabilitation f.nctional Outcomes

Transf.rmer f.r the Design of.Automatic Control Systems with Pref.lters

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World Journal of.Engineering and Technology 2024年第3期12卷 575-586页

作者： Isaac Hughes John f. O’Brien Department of.Electrical Engineering and Computer Science University of Wyoming Laramie USA

A machine learning model, using the transf.rmer architecture, is used to design a f.edback compensator and pref.lter f.r various simulated plants. The output of.the transf.rmer is a sequence of.compensator and pref.lter parameters. The compensator and pref.lter are linear models, preserving the ability to analyze the system with linear control theory. The input to the network is a window of.recent ref.rence and output samples. The goal of.the transf.rmer is to minimize tracking error at each time step. The plants under consideration range f.om simple to challenging. The more dif.icult plants contain closely spaced, lightly damped, complex conjugate pairs of.poles and zeros. Results are compared to PID controllers tuned f.r a similar crossover f.equency and optimal phase margin. f.r simple plants, the transf.rmer converges to solutions which overly rely on the pref.lter, neglecting the maximization of.negative f.edback. f.r more complex plants, the transf.rmer designs a compensator and pref.lter with more desirable qualities. In all cases, the transf.rmer can start with random model parameters and modif. them to minimize tracking error on the step ref.rence.

关键词： f.edback Machine Learning Compensator Design

Degradation Rate Assessment of.Biodegradable Magnesium Alloys

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Materials Sciences and Applications 2024年第8期15卷 245-252页

作者： Bianmei Cao Limei Cao David f. Kallmes Department of.Radiology Mayo Clinic Rochester MN USA National Institutes f.r f.od and Drug Control Beijing China

Biodegradable magnesium alloys have been widely used in medical implants. But saf.ty concerns were put f.rward f.r the high degradation rate of.biodegradable magnesium alloy. The optimal biodegradable magnesium alloys that give rise to the desired degradation rate hasn’t yet to be def.ned. Assessing the degradation rate of.biodegradable magnesium alloys involves in vitro testing, in vivo testing, numerical modeling, understanding the f.ctors inf.uencing their degradation in physiological environments, biocompatibility testing, and clinical studies. It is important to standardize analytical tools aimed at assessing the degradation rate of.biodegradable magnesium alloys. It is advisable to identif. the threshold f.r saf. degradation rate of.biodegradable magnesium alloys in biomedical applications.

关键词： Magnesium Alloys Biomedical Application Biodegradation Degradation Rate Biocompatibility