Thickness Of Part Research Articles

A systematic review of olfactory-related brain structural changes in patients with congenital or acquired anosmia.

Brain structural features of healthy individuals are associated with olfactory functions. However, due to the pathophysiological differences, congenital and acquired anosmia may exhibit different structural characteristics. A systematic review was undertaken to compare brain structural features between patients with congenital and acquired anosmia. A systematic search was conducted using PubMed/MEDLINE and Scopus electronic databases to identify eligible reports on anosmia and structural changes and reported according to PRISMA guidelines. Reports were extracted for information on demographics, psychophysical evaluation, and structural changes. Then, the report was systematically reviewed based on various aetiologies of anosmia in relation to (1) olfactory bulb, (2) olfactory sulcus, (3) grey matter (GM), and white matter (WM) changes. Twenty-eight published studies were identified. All studies reported consistent findings with strong associations between olfactory bulb volume and olfactory function across etiologies. However, the association of olfactory function with olfactory sulcus depth was inconsistent. The present study observed morphological variations in GM and WM volume in congenital and acquired anosmia. In acquired anosmia, reduced olfactory function is associated with reduced volumes and thickness involving the gyrus rectus, medial orbitofrontal cortex, anterior cingulate cortex, and cerebellum. These findings contrast to those observed in congenital anosmia, where a reduced olfactory function is associated with a larger volume and higher thickness in parts of the olfactory network, including the piriform cortex, orbitofrontal cortex, and insula. The present review proposes that the structural characteristics in congenital and acquired anosmia are altered differently. The mechanisms behind these changes are likely to be multifactorial and involve the interaction with the environment.Supplementary InformationThe online version contains supplementary material available at 10.1007/s00429-021-02397-3.

Machine learning aided design of conformal cooling channels for injection molding

During the injection molding process, the cooling process represents the largest portion of the cycle time. The effectiveness of the cooling system significantly affects the production efficiency and part quality, where it is limited by the conventional cooling channels manufactured by the drilling and casting process. Although the maturing advanced additive manufacturing (AM) technology allows the design and fabrication of complex conformal cooling channels, the temperature variance caused by non-uniform thickness distribution of the part remains unsolved. This issue is caused by the fact that the existing conformal cooling designs do not create the channels conformal to the part thickness distributions. In this work, a machine learning aided design method is proposed to generate cooling systems which conform not only to the part surface but also to the part thickness values. Three commonly used conformal cooling channel topologies including spiral, zig-zag, and porous are selected. A surrogate model is derived for each cooling channel topology to approximate the relationship between the design parameters of the cooling channels, part thickness, and the resulting part surface temperature. Based on the surrogate model, the design parameters of each type of cooling channels are optimized to minimize the part surface temperature variation. At the end of the paper, design cases are studied to validate the effectiveness of the proposed method. Based on the proposed method, much lower temperature variance and a smaller coolant pressure drop are achieved compared with the conventional conformal cooling design.

Parameterization of Solar Radiation Absorption by Snow–ice Cover in the Thermodynamic Sea Ice Model of the Sea of Azov

Purpose. The work is aimed at assessing the influence of choice of the parameterization scheme of the snow and ice radiation features upon reproduction of seasonal evolution of the snow–ice cover thickness and temperature distribution in it in the Taganrog Bay top part. Methods and Results. Thermal seasonal dynamics of the snow–ice cover thickness in the northeastern part of the Taganrog Bay was studied using a non-stationary thermodynamic model of sea ice. The model reproduces formation of ice and accumulation of snow on its surface, spatial-temporal change in their thermophysical characteristics, melting of the snow–ice cover, vertical distribution of temperature, and solar radiation absorbed in its thickness at a preset timed data on the meteorological parameters. In the numerical solution of the heat conductivity equation for snow and ice including a radiation source, a computational grid permitting to maintain spatial resolution of the temperature profiles in the snow–ice cover during its melting and growth was applied. Two variants of parameterization of solar radiation transfer in the sea ice were considered. The first version assumed exponential decay of radiation with the constant transmittance and extinction coefficients. In the second one, a two-layer scheme of the solar radiation penetration into ice was used; it simulated the near-surface transition layer. Attenuation of intensity of solar radiation in the snow thickness was described by the Bouguer–Lambert law with the extinction coefficient both as independent of the snow thermophysical characteristics and as represented by the function of its density. The numerical experiments with the purpose to reproduce seasonal evolution of the snow–ice cover thickness and its vertical temperature profile in the Taganrog Bay top part were performed for the winter season, 2016/17. Comparative analysis of the simulation results and the sea ice thickness values taken from the ESIMO ice maps made it possible to choose a combination of the model parameters that provides the best correspondence between the calculated and actual values. Conclusions. It is shown that in reproducing the seasonal changes in the ice cover thickness in the Taganrog Bay top part in winter, 2016/17, the choice of the transmittance and extinction coefficients for white ice represented by the cloudiness functions, on the one hand, and the thickness of the layer with the most intense absorption of short-wave radiation ~ 4 cm, on the other, turned out to be the most justified.

Effect of Potassium Sodium Hydrogen Citrate Granule on The Wall

Objective: To observe the effect of potassium sodium hydrogen citrate Granule on the wall stone shell of preset ureteral stent before ureteroscopy. Methods: 263 cases of renal calculi treated in our hospital from January 2019 to June 2021 who needed ureteroscopy and successfully preset ureteral stent were investigated retrospectively. 129 cases of patients who took oral potassium sodium citrate granules 10g a day from preset ureteral stent and maintained pH between 7.6 ~ 8.0 until before ureteroscopy were classified into the experimental group, 134 patients without oral administration of any drugs were classified as the control group. The patients in the experimental group took Potassium Sodium Citrate Granules orally. The daily dose was 4 standard spoons, 1 spoonful in the morning, 1 spoonful at noon and 2 spoonfuls in the evening. Both groups of patients returned to the hospital for ureteroscopic lithotripsy after 3 weeks according to the doctor’s advice. After pulling out the ureteral stent tube during the operation, the two doctors observed whether there was wall attached stone shell on the surface of the ureteral stent tube and the thickness of the stone shell, and recorded it in a special notebook after unified opinions. Finally, weigh the weight of ureteral stent and completely scrape off the stone shell to obtain the weight of stone shell. Results: In the experimental group, 129 ureteral stents were pulled out, of which 7 showed thin stone shells and 4 showed thicker stone shells (the thickest part ≥ 1mm). The stone shell formation rate was 8.53%, and the average stone shell weight was 0.8521 ± 0.1952 G. In the control group, 134 ureteral stents were pulled out, including 21 thin stone shells and 9 thick stone shells. The stone shell formation rate was 22.39%, and the average stone shell weight was 1.7823 ± 0.1802 G. The ureteral stent was pulled out at one time in both groups. After oral administration of youlaite, there were significant differences in stone shell formation rate, stone shell thickness and stone shell weight between the two groups (P < 0.05). Conclusion: Potassium sodium hydrogen citrate granules can be used as an economic, effective and safe drug to reduce the formation of stone shell attached to ureteral stent and slow down the progress of stone shell thickness, which is worthy of clinical promotion.

Heat Transfer-Based Non-isothermal Healing Model for the Interfacial Bonding Strength of Fused Filament Fabricated Polyetheretherketone.

Fused Filament Fabrication (FFF) as an Additive Manufacturing (AM) method for Polyetheretherketone (PEEK) has established a promising future for medical applications so far, however interlayer delamination as a failure mechanism for FFF implants has raised critical concerns. A one-dimensional (1D) heat transfer model (HTM) was developed to compute the layer and interlayer temperatures by considering the nature of 3D printing for FFF PEEK builds. The HTM was then coupled with a non-isothermal healing model to predict the interlayer strength through thickness of a FFF PEEK part. We then conducted a parametric study of the primary temperature effects of the FFF system, including the print bed, nozzle, and chamber temperatures, on layer healing. The heat transfer component of the model for the FFF PEEK layer healing assessment was validated separately. An idealized PEEK cube design (10x10x10 mm3) was used for model development and 3D printed in commercially available industrial and medical FFF machines. During the printing and cooling processes of FFF, thermal videos were recorded in both printers using a calibrated infrared camera. Thermal images were then processed to obtain time-dependent layer temperature profiles of FFF PEEK prints. Both the theoretical model and experiments confirmed that the upper layers in reference to the print bed exhibited higher temperatures, thus higher healing degrees than the lower layers. Increasing the print bed temperature increased the healing of the layers allowing more layers to heal 100%. The nozzle temperature showed the most significant effect on the layer healing, and under certain nozzle temperature, none of the layers healed adequately. Although environment temperature had less impact on the lower layers closer to the print bed, 100% healed layer number increased when the chamber temperature increased. The model predictions were in good agreement with the experimental data, particularly for the mid-part of FFF PEEK cubes printed in both FFF machines.

SLS Process Parameter Optimization to Improve Surface Quality and Accuracy of Polyamide Parts

The contribution of selective laser sintering (SLS) technique in the 4.0 manufacturing industry is undisputedly significant. SLS part quality exhibits high dependence on SLS process parameters and is a major challenge. Therefore, this research aims to investigate the effect of input parameters (i.e., part orientation, bed temperature, and layer thickness) on the surface roughness and accuracy of laser-sintered polyamide specimens. Response surface methodology (RSM) and ANOVA analysis aided the testing and evaluation. Optimal working conditions for minimum shrinkage were 0.17 mm layer thickness, 177.89°C part bed temperature, and part orientation at 88.91 degrees. The surface quality deteriorated with the increment in part bed temperature and layer thickness, and it shows an inverse trend (or improves) with the part orientation in the prescribed range. The optimal surface roughness was at a layer thickness of 0.11 mm, bed temperature at 174.55°C, and part orientation at 86.5 degrees.

Powder bed penetration depth control in laser sintering and effect on depth of fusion

The relationship between absorptance of a powder bed and various parameters affecting interlayer adhesion in plastic laser sintering is discussed. To control absorptance a near-infrared laser, which is rarely absorbed by most polymeric materials, and a light absorbing additive are employed. Transmittance and reflectance are measured for powders with different amounts of absorbent. Attenuation of light in the powder bed is found to follow the Beer–Lambert law despite scattering in the medium. There was a proportional relationship between absorbance and absorbent content. Thus, the amount of absorbent that gives a desired penetration depth can be determined. Thicknesses of parts obtained by single layer exposure for various penetration depths are measured to evaluate depth of fusion, which directly affects interlayer adhesion in laser sintering. Penetration depth and depth of fusion are positively correlated when energy density is optimized to maximize part density for each penetration depth.

Resource Partitioning of Scots Pine (Pinus sylvestris L.) by Pine Shoot Beetles in Stands under Stress Conditions

The pine shoot beetles Tomicus piniperda L. and T. minor Hartwig are sympatric species that occur on Scots pine in two habitats. Feeding by the beetles in tree crowns causes significant losses in tree growth and disturbs the crown’s proper development. A review of the subject literature showed that there had been no previous studies of interspecific competition in stands with different degrees of crown damage. The aim of this work was to assess the resource partitioning of stems by the two species in stands with damaged and undamaged crowns. Data were collected in the years 1992–2008 in stands containing Scots pine located at different distances from timber yards. A total of 259 natural traps were laid, and measurements of height and diameter at breast height were made for 900 pines. The surface area of each stem was divided into 20 equal sections by making a division lengthwise (into units) and laterally (into an upper and lower part). In total, 90,501 egg galleries of pine shoot beetles were counted on 9560 stem sections. Feeding by pine shoot beetles in the crowns of pines reduces site productivity and the nutritional suitability of stems. The results of niche segregation indicate pine shoot beetles exhibited spatial specialization in the use of resources. prefers the thicker part of the stem, and T. minor the thinner part. The population of T. piniperda on the trap logs was described using a multiple linear regression model with three explanatory variables. As a result of regression modelling, from the set of variables representing characteristics of habitats, trees and trap logs and the parameters of infestation, the following explanatory variables were selected: range of colonisation of a trap log (rc), site quality class (sqc), and crown undamaged (cu). The explanatory variables included in the MLRM model explain to a significant degree (p < 0.05) the niche breadth of T. piniperda on trap logs. In all validated plots, the mean real and model values for the niche of T. piniperda on the trap logs are similar (p > 0.5), confirming the high accuracy of the developed model.

Modeling the Producibility of 3D Printing in Polylactic Acid Using Artificial Neural Networks and Fused Filament Fabrication.

Polylactic acid (PLA) is a highly applicable material that is used in 3D printers due to some significant features such as its deformation property and affordable cost. For improvement of the end-use quality, it is of significant importance to enhance the quality of fused filament fabrication (FFF)-printed objects in PLA. The purpose of this investigation was to boost toughness and to reduce the production cost of the FFF-printed tensile test samples with the desired part thickness. To remove the need for numerous and idle printing samples, the response surface method (RSM) was used. Statistical analysis was performed to deal with this concern by considering extruder temperature (ET), infill percentage (IP), and layer thickness (LT) as controlled factors. The artificial intelligence method of artificial neural network (ANN) and ANN-genetic algorithm (ANN-GA) were further developed to estimate the toughness, part thickness, and production-cost-dependent variables. Results were evaluated by correlation coefficient and RMSE values. According to the modeling results, ANN-GA as a hybrid machine learning (ML) technique could enhance the accuracy of modeling by about 7.5, 11.5, and 4.5% for toughness, part thickness, and production cost, respectively, in comparison with those for the single ANN method. On the other hand, the optimization results confirm that the optimized specimen is cost-effective and able to comparatively undergo deformation, which enables the usability of printed PLA objects.

Magnetotelluric evidence for an Archaean – Proterozoic lithospheric assemblage within the Cambay rift basin, western India, and its role in channeling of plume-derived fluids within the basin

The Cambay rift basin (CRB) in western India is a hydrocarbon producing basin, which has been extensively explored geophysically for hydrocarbon reserves. However, only a limited number of geophysical studies have been carried out to image its lithospheric structure. We have conducted a magnetotelluric (MT) study along an E-W profile across the CRB to delineate its lithospheric structure. The profile starts from the eastern part of the Kachchh rift basin (KRB) to the west of the CRB and extends up to the Aravalli-Delhi fold belt in the east. MT data were acquired at 26 sites along this 210-km-long profile and cover a wide period range of 0.0026–30,000 s. Two-dimensional inversion of this dataset yields a geoelectrical model that reveals a spatially heterogeneous lithosphere in the basin. We infer that the western highly resistive and the eastern moderately resistive blocks represent an Archaean depleted and a Proterozoic lithosphere, respectively. It is postulated that the weak Proterozoic lithosphere facilitated channelization of exsolved fluids and volatile enriched (CO2, H2O) melts to the crustal depths and lithospheric alteration of the eastern block during its interaction with the Reunion plume. The thickness of the sedimentary basin in the CRB also varies between ~2 to 7 km, the thickest part being in the western block. In contrast, the basin is less than 2 km thick in the KRB.

Instability of co-flow in a Hele-Shaw cell with cross-flow varying thickness

We analyse the stability of the interface between two immiscible fluids both flowing in the horizontal direction in a thin cell with vertically varying gap width. The dispersion relation for the growth rate of each mode is derived. The stability is approximately determined by the sign of a simple expression, which incorporates the density difference between the fluids and the effect of surface tension in the along- and cross-cell directions. The latter arises from the varying channel width: if the non-wetting fluid is in the thinner part of the channel, the interface is unstable as it will preferentially migrate into the thicker part. The density difference may suppress or complement this effect. The system is always stable to sufficiently large wavenumbers owing to the along-flow component of surface tension.

Influence of the Mold Material on the Injection Molding Cycle Time and Warpage Depending on the Polymer Processed.

The thermal properties of the mold influence the cooling situation in the injection molding process. While there are experimental studies investigating the influence of special mold materials, they are limited to few polymers. In this work, an extensive parameter study with the simulation software Autodesk Moldflow Insight was performed to analyze the influence of the polymer itself on the impact of the mold steel on cycle time and warpage. The investigated part was a box with two thickness variations. A conventional mold steel was compared with a steel grade featuring approximately double the thermal conductivity. Simulations were performed with 18 polymers covering the most common material families. The main finding of this study was that the influence of the higher mold conductivity on cycle time ranged from an almost negligible reduction (3%) up to a strong effect (24%), depending mainly on the used polymers, but also on the part thickness. For the cycle time reduction, a correlation was found, with the melt, mold and ejection temperature being the dominant influencing factors of the polymers. With this correlation, it was possible to estimate the potential of cycle time reduction for other polymers. The simulations also showed a positive influence of the higher mold thermal conductivity on part warpage.

Differentiating Primary Sclerosing Cholangitis from Similar Diseases of Autoimmune Origin.

Primary sclerosing cholangitis (PSC) is a rare cholestatic liver disease. Differential diagnostics can confuse it with immunoglobulin (Ig) G4-related sclerosing cholangitis (SC), an IgG4-related disease with clearly proven autoimmune origin. Differential diagnosis is made even more challenging because PSC with increased IgG4 levels (PSC-increased IgG4) also occurs. In order to facilitate their differential diagnosis, we reviewed recent literature regarding the etiologies, identifying characteristics, the most useful diagnostics, treatment, and the progression of these partially similar diseases. It is clear that PSC's pathogenesis differs from that of IgG4-related SC. In any differential diagnosis between PSC and PSC-increased IgG4, high IgG1 and low or normal IgG2 levels are characteristic for patients with PSC. Histological examination of the biliary tree wall in patients with IgG4-related SC typically reveals such changes as storiform fibrosis, obliterative phlebitis, and venulitis. These are absent in PSC-increased IgG4, which is characterized by a typical circular thickness in different parts of the biliary ducts. Finally, PSC is associated with inflammatory bowel disease, which is rare in IgG4-related SC, and more frequently is associated with cholangiocarcinomas and colon cancers. As distinct from IgG4-related SC, PSC is not a primary autoimmune disease.

Deciphering the curved profile of uranyl ions at the aqueous-organic interface by atomistic simulations

The acceptance of nuclear energy is due to the safe and clean operation of the reactor along with the proper reprocessing of the aqueous nuclear waste. In that context, extraction of uranyl ion form aqueous solution has an immense importance in the field of fuel reprocessing. The extraction of uranyl ion is the key step on which the efficiency of the reprocessing depends. Tri-isoamyl phosphate (TiAP) is proven to be a potential alternative of Tri-butyl phosphate (TBP) in the Plutonium Uranium Extraction (PUREX) process. Therefore, understanding of PUREX process at the atomistic level using molecular dynamics simulations is of immense practical significance. Therefore, extensive molecular dynamics simulations have been conducted using calibrated all-atom optimized potentials. The simulation studies have been performed for a wide range of nitric acid concentration from 1 M to 8 M. MD studies reveal the importance of interfacial properties on the extraction of uranyl ions. The predicted interface thickness is seen to be increased with acidity whereas the calculated interfacial tension shows the opposite behavior. From the calculated results, it is observed that the capillary part of the total interface thickness is suppressed whereas the intrinsic part is expanded due to the packing of uranyl ions. The uranyl complexes remain adsorbed at the close proximity of the aqueous-organic interface. The predicted distribution constant of uranyl ion with increasing acidity exhibits a “curved profile“ as observed in the experiment. The computed interaction energy using DFT displays that the TiAP-UO22+ interaction energy is much higher compared to the TiAP-HNO3 and TiAP-H2O interaction energies thus support the higher distribution constant of uranyl ion. The high value of negative free energy difference, ΔΔG (ΔGSolvation - ΔGHydration) of uranyl ion in the organic and aqueous phase confirms that the partitioning of uranyl ion to the organic phase through complexation reaction is thermodynamically feasible process.

Seismic attributes and quantitative stratigraphic simulation’ application for imaging the thin-bedded incised valley stratigraphic traps of Cretaceous sedimentary fairway, Pakistan

Seismic attributes play a vital role in the stratigraphic reservoir characterization of incised valley systems. These systems are developed during the rapid fall and subsequent rise of sea level, which affects the reservoir connectivity within the thin-bedded stratigraphic traps. Hence, the prediction of vertical thickness, lateral extent, and angle of stratigraphically trapped porous reservoirs within intercalated shales become an obstacle for oil and gas exploration. Therefore, this study is focused on quantitative prediction of incised valley systems by applying the inverted seismic simulations and continuous wavelet transform-based (CWT) post-stack seismic attribute analysis on a gas field, SW Pakistan. The seismic amplitude has delineated limited dissemination sandstones and faulted scheme compared to the instantaneous frequency. The instantaneous frequency has detected a low-frequency anomaly below a 23 m thick sandstone-filled fractured reservoir, which has a lateral extent of 7.5 km. The acoustic impedance-based static reservoir model has resolved a 23 m thick incised valley stratigraphic sandstone lens with a lateral extent of 26 km within the low-impedance zones, which was equal to the tuning thickness threshold (TTT) of 26 m. The inverted velocity modelling has remained a very poor tool, which could image a 6 m thick sandstone reservoir. The response of the band-limited acoustic impedance-based thickness model (AITM) was better compared to the velocity model, which has predicted a 49 m thick sandstone lens. But, due to tuning effects of shale-bearing facies, the actual well locations couldn't be accurately imaged by AITM. The response of 19-Hz CWT-based processed AITM has predicted the exact drillable locations for a 69 m thick part of the hydrocarbon-bearing fluids and demarcated the gas-water-contacts (GWCs). These gas-bearing sandstones are encased within the high-impedance shales, which have proved as an analogue for regional lowstand depositional systems. The 19-Hz frequency has accurately demarcated the zones of regional subsidence and uplifting within the significant sea-level fluctuations. The subsidence zones have experienced a 69 m thick zone of gas-bearing fluvial channelized reserves during the falling stage of the sea level and subsequent growth. Therefore, the identified fluvial-dominated incised valley was developed during the falling stage of lowstand system tract (LST), and hence, the presented working scheme can be successfully applied for the exploration of remaining reserves within the Indus Basins of Pakistan and can act as an analogue to similar geological basins.

Liquid-phase deposition of Al2O3 coating on quartz fiber for enhanced strength at elevated temperature

ABSTRACT In the manuscript, the liquid-phase deposition technique was used to successfully deposit an Al2O3 ceramic coating on the quartz fiber. The thickness of the coating was not uniform. The thickest part of the coating can reach to 1159 nm. The main coating formed is Al2O3, but there are still hydrous Al(OH)3. With the extension of the deposition time, the micro-morphology of the coating changed from nano-scale clusters to dense flakes. The coating had an amorphous structure. In this case, the coating effectively improved the mechanical properties of the quartz fiber at high temperatures, and the breaking load of the fiber increased with the extension of the deposition time. After high temperature annealing, the breaking load of the coated fiber deposited for 6 h was 126.1 N, compared to 50.3 N of the blank fiber. The protection mechanism of Al2O3 coating was studied from the aspect of microstructure. By observing the surface morphologies of blank fiber and coated fiber after high temperature annealing. It was found that the presence of the coating hindered the damage of the fiber surface by high temperature, and the defects on the fiber surface were reduced, so the mechanical properties were effectively improved.

Technological parameters influence on biodegradable injected polymers during water jet cutting

"Arbofill Fichte and Arboblend V2 Nature are polymers with high-performance functional characteristics and which have the potential to replace plastics based on nonrenewable resources from various sectors of activity. The present study aims to analye from topographical point of view the behavior of injected parts during the processing by cutting with abrasive water jet. The materials behavior, as expected, in any machining or manufacturing process is influenced by the technological parameters, whether they are kept constant (for example the part thickness, the abrasive material, the distance between the cutting head and the part) or variable (pressure, traverse speed and abrasive material flow). In this sense, the purpose was to obtain data regarding the most used roughness parameter, Ra, and based on them some solutions for optimizing the working parameters will be provided, so that the surfaces quality to be as good as possible. The results showed that the technological parameter ""abrasive material flow"" has the greatest influence on the roughness, ie lower values of roughness for the situation of using a larger amount of abrasive. "

Evaluation of shrinkage and weld line strength of thick flat part in injection moulding process

Evaluation of shrinkage and weld line strength of thick flat part in injection moulding process

Tool interface pressure during the forming of model composite corners

A new experimental technique is proposed to measure the pressure gradient in corner laminates with the aim of guiding manufacturing practices that can produce composites laminates to the desired thickness. A pressure mapping sensor was placed between a metal mould tool and a silicone sheet that acts as an idealised composite part. The compaction pressure loss in internal corners and rise in external corners is reported for the first time, covering a part thickness to radius ratio of 0.2 to 0.8 in the corner. A conclusive trend was observed in internal corners, where the pressure drop increases proportionally with the thickness to radius ratio. The sensor thickness, bulk, and contact with the tool created difficulties in measuring the true extent of the pressure rise for external corners. Stretchable thin film sensors might provide better alternatives for future studies looking to investigate pressure gradients in doubly curved geometries.

Mechanical properties of π-shaped joints of flat concrete-filled steel tubular column

A flat concrete-filled steel tubular column (FCFST) is a concrete-filled steel tubular column (CFST) with a section length-width ratio greater than or equal to two. In this study, the vertical stiffener joint was appropriately modified, and a new type of rigid joint suitable for the width-side direction (weak axis direction) of the FCFST and H-beam was proposed. Four specimens were designed for pseudo-static experiments, and Abaqus was used to establish finite element models (FEM) to provide a supplementary calculation. The results showed that the π-shaped joints had a clear load path, sufficient energy consumption, and good seismic performance. When the beams were eccentrically arranged, the stiffness and ultimate strength of the joints were improved, whereas the ductility was reduced. Subsequently, a parameterized analysis was performed for the π-shaped joint of the FCFST. It was determined that the thickness of the π-shaped part, length of the corbel, thickness of the steel tube, and width of the FCFST have prominent influences on the stiffness and ultimate strength of the joint. Finally, a calculation formula was derived for the joint based on the yield-line theory. The calculation results of the formula were compared with the experimental results. These errors were found to be acceptable, confirming that this approach can be used in actual projects.