Homogeneous Mass Research Articles

Pile tip bearing capacity in rock masses: analytical and numerical analysis comparison

This paper researches the different approaches to calculate the ultimate bearing capacity at the pile tip embedded in a homogenous rock mass characterized by the modified Hoek and Brown failure criterion. The main objective is to analyze the performance of the novel Discontinuity Layout Optimization method (DLO), which directly calculates the limit load, instead of using a load convergence scheme, being first applied here to the complex problem of piles in rock. The DLO results are validated against the available analytical solution and the Finite Difference Method (FDM) results, for wide range of geometric and geotechnical parameters. Perfect plasticity, plane strain conditions, associated flow rule, the modified Hoek and Brown failure criterion, and weightless rock media are considered in all models. The comparison between solutions is expressed by a percentage difference considering the analytical solution or the numerical solution as a reference. Results relative to DLO and FDM differences against the analytical solutions point towards some limitations of the analytical solution and that the numerical model does not reproduce exactly the analytical solution hypotheses. From the analysis, DLO demonstrates to be a very efficient and accurate tool to address the tip-of-pile bearing capacity, presenting considerable advantages over other methods.

Teaching Neuro Images : Burkitt dural lymphoma mimicking a subacute subdural hematoma

A 59-year-old woman with no history of trauma presented with severe headaches and right-sided weakness. A CT scan showed a left hemispheric isodense subdural collection thought to be consistent with a subacute subdural hematoma (figure 1A). The patient underwent a single parietal burr hole for evacuation, but the neurosurgeon found subdural fleshy tissue and performed a biopsy. Immediate postoperative MRI showed a homogeneous hypercellular subdural mass (figure 1, B–F).1 Pathology was consistent with Burkitt lymphoma (figure 2). Retrospectively, the homogeneous density of the collection argued against hematoma. In nonemergent situations, an atypical radiologic appearance of a subdural hematoma may suggest the need for further radiologic investigations before surgical evacuation.2

OVARIAN CYST MASQUERADING AS CERVICAL STUMP LEIOMYOMA IN A WOMAN AFTER SUBTOTAL HYSTERECTOMY: AN UNUSUAL PRESENTATION.

Introduction: Pelvic masses that seem to be ovarian masses on imaging are many times, actually broids, which can be subserosal, or true/ false broad ligament broids. Many cases of broids mimicking ovarian masses/ malignancy have been reported, but rarely any case can be found where an ovarian mass, especially a hemorrhagic cyst mimicked a broid. We present a case of a woman who, was post subtotal hysterectomy, presented with a midline homogenous mass suggesting a cervical stump broid but on operation table was diagnosed to be an ovarian mass. 47years old P2L2 woman presented with insidious dull aching lower abdominal p Case report: ain and an ultrasound report showing a midline 10 x 10cm pelvic mass. She had undergone a subtotal abdominal hysterectomy 15 years ago for symptomatic uterine broid. Examination and higher imaging suggested a cervical stump broid. On laparotomy, it was a well-circumscribed oval mass with a smooth surface, stuck in the pouch of Douglas originating from the right infundibulopelvic ligament with torsion (one twist). It was a thick-walled cyst with dried spongy hemorrhagic content. Histopathology conrmed the diagnosis of hemorrhagic cyst. A mass that is likely broid on imag Conclusion: ing preoperatively rarely turns out to be an ovarian mass during surgery. A hemorrhagic ovarian cyst can present in a subacute form mimicking a solid neoplasm or a solid broid.

Massive flows in AdS6/CFT5

We study five-dimensional N=1 Superconformal Field Theories of the linear quiver type. These are deformed by a relevant operator, corresponding to a homogeneous mass term for certain matter fields. The free energy is calculated at arbitrary values of the mass parameter. After a careful regularisation procedure, the result can be put in correspondence with a calculation in the supergravity dual background. The F-theorem is verified for these flows, both in field theory and in supergravity. This letter presents some of the results in the companion paper [1].

Building a community-scale plastic recycling station to make flower pots from bottle caps

Plastic waste is increasing worldwide, contributing significantly to pollution and global warming. Our department uses at least 50 plastic water bottles daily; these bottles can be reused to manufacture other products. Recycling plastic waste produces various products, including garden sets for kids, bricks, roof tiles, key holders, and flowerpots. Through this project, we contribute to the fight against pollution caused by plastic waste by developing an easy-to-use plastic processing system. We create these valuable products using plastic collected from landfills. We present an open-source system that can be easily built by a technical team to create an ecosystem. We use the project as a mobile educational model to demonstrate the recycling mechanism and to foster a community recycling culture. The following procedures are included in this study. High-density polyethylene bottle caps are washed and dried before shredding in a shredder to produce flakes. Plastic flakes are fed into an extruder, which heats and transforms them into a homogeneous mass. This molten plastic is molded into the shape of a flowerpot using a die. Pots are great products to obtain from discarded plastic caps due to their strength. Following the fabrication of the entire system, numerous tests are performed to improve the design and obtain the desired specifications, resulting in appealing end products. In our facilities, flowerpots are made from consumer bottle caps and used to grow aloe.

Investigation of the Interaction Between Tip Leakage and Main Annulus Flow in the Large Scale Turbine Rig: Comparison of Different Rotor Tip Geometries

Abstract Shroudless rotor blades are state-of-the-art in modern high pressure turbines. Tip leakage flow has a crucial impact on turbine efficiency. Specific blade tip designs are a key factor to handle tip leakage losses by controlling tip leakage flow and its re-entry into the rotor passage. Comparative measurements of a cavity squealer type tip and a notch type tip have been conducted at the Large Scale Turbine Rig at Technical University of Darmstadt. The test rig has been operated at the blade tips design point. Experimental data have been acquired at rotor inlet and outlet as well as within the rotor passage. For cavity squealer tips, a tip leakage vortex develops at the suction side as the tip leakage flow is rolled-up and further mixed with main annulus flow. The tip leakage vortex determines the blockage of main annulus flow at the blade tip. The design of the suction side of the notch tip benefits a jet-like re-entry of tip leakage flow into the passage. Results are a tip leakage vortex system with smaller sized vortices and a more homogeneous mass flow redistribution in the outer annulus of the rotor. The zone of affected main annulus flow at the blade tip increases through the dominant tip leakage jet.

A case report: An unusual presentation of adenoid cystic carcinoma of the lacrimal gland.

Adenoid cystic carcinoma (ACC) is the most common malignant epithelial tumor of the lacrimal gland with the highest malignant degree. ACC of the lacrimal gland is characterized by symptoms of <1 years duration. We present a 38-year-old male patient who complained of an enlarging mass in the left lacrimal fossa for almost 10 years previous to the diagnosis of ACC. A 38-year-old male patient visited our ophthalmology clinic with a chief complaint of a mass in his left upper lid, which had enlarged significantly over the previous months. Magnetic resonance imaging with intravenous Gadobutrol showed moderate and homogenous mass enhancement. Bone destruction is found. The periosteum is not eroded. The magnetic resonance imaging finding was supportive for malignancy. Histopathological examination of the specimen revealed solid tumor showing a cribriform pattern mixed small amount of basaloid cell proliferation. Therefore, the final diagnose was Adenoid cystic carcinoma of the lacrimal gland. The treatment included en bloc resection of the mass and adjacent bone and radiotherapy. In 1 year follow-up after operation, there is no recurrence. Visual acuity is 30/30. The left eye shows limitation on abduction. The present case demonstrates an unusual progression of ACC of the Lacrimal Gland.

POSTCOLONIAL “OTHERNESS”

In this paper the category of Otherness has been concerned for those who occupy the subordinate position in society, which have been presented as inferior in terms of knowledge and abilities, which implies that they need the leadership of those who are, by definition, more capable, more educated, more advanced, more civilized, more merciful, etc. On this way, the hierarchy of representations is established, thus justifying the existing ones power relations in society as well as the unequal treatment of those who are represented as inferior. The concept of Otherness within the framework of postcolonial criticism is used to describe the rest of the world, i.e., everything that does not fall within the scope of Europeans, as one homogeneous mass characterized by ugly features. Otherness in postcolonial criticism refers to colonized peoples who are marginalized by the imperial and identified by their difference from the center. Any area that is not part of European soil is considered inferior, dangerous and less valuable. However, in the understanding of the Other, a duality is also noticeable, since he is sometimes considered wild, harmful and mysterious, and sometimes harmless. Hybridity, mimicry, ambivalence are terms which are used in postcolonial analysis. The colonizers tried to categorize the colonized population, and the formation of hybrid patterns prevented that process, since new cultural forms were emerging that no longer corresponded to the descriptions of the colonizers. Colonizers have been the part of Occident and the colonized nations are the Orient or the Others or the category of Otherness. Sharing the same space, Orient and Occident influenced each other, which resulted in the transfer of elements from one culture to another. The fruit of this is the emergence of an intermediate space and a hybrid identity, which is characterized as a simultaneous affection for two or more different and opposing identity patterns, but does not fully belong to any of them.

THE RARE THIRD BRANCHIAL CYST IN PAEDIATRIC AGE GROUP

Third branchial cleft cysts are rare presentations of an abnormal persistence of the branchial apparatus during embryological development. Radiological investigations such as Computed tomography (CT scan) examination and Magnetic Resonant (MR) imaging studies help to diagnose in suspected cases. On CT scan these cysts appear as low attenuated homogeneous masses with well-circumscribed margins; on MR imaging, they demonstrate hyperintense relative to muscle on T2-weighted images. Definitive treatment is surgical excision. We present a case of a third branchial cleft cyst in 5 years old female child describing its diagnosis and treatment.

Biowaste as fluid matter: valuing biogas and biofertilisers as assets in the Finnish biogas sector

ABSTRACT In this article, we examine the effort of turning biowaste into an asset in the everyday practices of Finnish biogas plants. Drawing from social scientific waste studies as well as new materialist and posthumanist approaches, we approach biowaste as unruly, fluid matter inclined to leak and spill over and capable of affecting the possibilities of valuing it. Our analysis shows how biowaste resists the efforts to turn it into completely homogenous mass; how this mass has to be taken care of over the production process; and how it is not always clear whether the practices produce valuable assets or problematic excess. We argue that to better understand the possibilities for a transition towards a circular economy, it is important to acknowledge that the processing and valuing of waste does not offer complete control over it, but also requires careful alignment with waste material that does not always act as wished.

Improving Homogeneity of 3D-Printed Cementitious Material Distribution for Radial Toolpath

The 3D cementitious material printing method is an extrusion-based additive manufacturing strategy in which cementitious materials are extruded through a dynamic nozzle system to form filaments. Despite its ability to fabricate structures with high complexity and efficiency, the uneven material distribution during the extrusion and deposition process is often encountered when a radial toolpath is introduced. This limits the design freedom and printing parameters that can be utilized during radial toolpath printing. Here, we report a facile strategy to overcome the existing challenges of cementitious material non-homogeneity by rationally developing new nozzle geometries that passively compensate the differential deposition rate encountered in conventional rectangular nozzles. Using two-phase numerical study, we showed that our strategy has the potential of achieving a homogeneous mass distribution even when the nozzle travel speed is unfavorably high, while filament from a rectangular nozzle remains highly non-homogenous. The material distribution unevenness can be reduced from 1.35 to 1.23 and to 0.98 after adopting trapezoid and gaussian nozzles, indicating improvements of 34.3% and 94.2%, respectively. This work not only outlines the methodology for improving the quality of corner/curved features in 3DCMP, but also introduces a new strategy which can be adopted for other extrusion-based fabrication techniques with high material inertia.

Multi-decadal distribution changes of commercially important demersal species in the central-western Sea of Japan based on a multi-species spatiotemporal model

Understanding long-term changes in the distribution of commercially important species is a key first step for developing appropriate management plans. We estimated multi-decadal changes in the distributions of seven demersal fish species in the central-western Sea of Japan by fitting a multi-species spatiotemporal model to catch and effort data from a Japanese offshore trawl fishery from 1982 to 2020. We then identified any spatiotemporal patterns and discussed their relationship to oceanographic factors. Large distribution expansions were detected for Pacific cod (Gadus macrocephalus) and blackthroat seaperch (Doederleinia berycoides) in the southwestern region of the study area in the 2000s and 2010s. Combined with previous findings and an interannual trend of water temperature, it is thought that these changes could have been caused by expansions in the distribution of optimal thermal condition for stock-recruitment relationships. Species that did not experience large changes in distribution, such as cold-water flounders [the flathead flounder (Hippoglossoides dubius) and Korean flounder (Glyptocephalus stelleri)], mainly inhabit deep waters that are thought to be dominated by a colder and homogeneous water mass, meaning that their habitats were more likely to remain stable over time. Our results will contribute to improvement of adaptive stock managements for commercially important demersal species.

Determination of the physical and mechanical indicators of the polymer base and the optimal method of introducing active pharmaceutical ingredients into the base composition

Treatment of wounds and wound infection remains an urgent medical problem today, especially in conditions of constant hostilities. Hydrogel bandages are quite effective means for local treatment of wounds, which are able to have a complex therapeutic effect and do not require frequent replacement in the process of medical supply to military personnel. Taking into account the relevance of this topic, our research is aimed at developing a hydrogel bandage with lidocaine hydrochloride, ceftriaxone and metronidazole. Aim. To study the physical and mechanical parameters of the polymer base and determine the optimal method for introducing active pharmaceutical ingredients (APIs) into the base composition. Materials and methods. The study materials were APIs (lidocaine hydrochloride, ceftriaxone, metronidazole) and excipients. Physical and mechanical research methods were used in the work. Results and discussion. In order to develop the optimal technology for obtaining the polymer mass and determining technological indicators, we studied the indicators of physical and mechanical properties. Indicators of breaking force and relative elongation depend on such technological characteristics as homogeneity, uniformity of application on the substrate, the absence of air bubbles. It was found that the higher the physical and mechanical parameters, the higher the quality of the polymer mass applied to the substrate. Therefore, after obtaining a homogeneous mass it is necessary to deaerate air bubbles by centrifugation (No. 1-5) at 3000 rpm for 5-10 min. During the study of the ease of application of the polymer mass on the polyethylene terephthalate substrate, it was found that the drying process was affected by the thickness of the layer. It was proven that samples No. 1-5 had a uniform, adhesive layer and could be used for further research. The main technological indicators were the layer thickness of 0.40 mm, the centrifugation time of 5-10 min at 3000 rpm, homogeneity (mixing for 15 min at 36 rpm, an anchor stirrer). It was experimentally found that to obtain a layer thickness of 0.40 mm, it was necessary to apply 0.03 g of the sample per 1 cm2 of the substrate. We proved that polymers in the concentration of 10 % provided the optimal technological indicators. To confirm this, the dependence of the viscosity of the forming solution on the concentration / ratio of polymers was studied. We found that the technological indicators of homogeneity and uniformity directly affected the quality of the resulting product. Taking into account the fact that it was possible to introduce poorly soluble substances into the composition of model samples we conducted an experiment on their sedimentation in a polymer solution. It was found that APIs introduced into the polymer solution had different values of the sedimentation rate (time), which was probably related to the degree of solubility. In addition, the polymer concentration in the forming solutions also affected the sedimentation rate of API. The higher the viscosity, the slower the API particles settled. Conclusions. It has been found in the course of the study that satisfactory indicators of physical and mechanical parameters can ensure the quality of the polymer mass production technology as the base for choosing a polymer coating for obtaining a hydrogel with anesthetic, antibacterial, and antimicrobial effects. The main technological indicators determined are the layer thickness (0.40 mm), the centrifugation time (5-10 min at 3000 rpm), homogeneity (mixing for 15 min at 36 rpm, anchor stirrer). The results obtained will be used to develop the composition and the manufacturing technology for a pharmaceutical composition with lidocaine hydrochloride, ceftriaxone and metronidazole.

АКТУАЛЬНЫЕ ВОПРОСЫ ОЦЕНКИ КАЧЕСТВА ПОЛИКОМПОНЕНТНОГО ГЕЛЯ РЕПАРАТИВНОГО ДЕЙСТВИЯ

The domestic pharmaceutical market still lacks reparative drugs, which determines research on their creation as an urgent theoretical and applied task. In this regard, the expediency of developing the composition and technology for obtaining a polycomponent gel with a predictable positive effect on wound healing processes based on dermal biopolymers and a complex of biologically active substances of corn columns with stigmas is substantiated. The complex of technological studies carried out made it possible to establish the optimal composition and technology for obtaining a polycomponent gel. At the next necessary stage of pharmaceutical development, it was necessary to solve the issues of assessing the quality of the proposed composition of the polycomponent gel. The purpose of this study was to determine the criteria and methods for monitoring the quality indicators of a multicomponent reparative gel. The object of the study was experimental samples of a multicomponent gel obtained by introducing a thick extract of corn columns with stigmas into a collagen base. The quality of the polycomponent gel was assessed in accordance with the requirements of GPM.1.4.1.0008.15 "Ointments" of the State Pharmacopoeia IV edition according to the following criteria: "Description", pH, "Microbiological purity", authenticity and quantitative content of active substances. The indicator "Description" was evaluated organoleptically. The determination of the pH of the gel was carried out potentiometrically using a pH meter (Mettler Toledo, USA) according to GPM.1.2.1.0004.15 "Ionometry" directly in the gel sample. Microbiological purity was studied by the agar plate method in accordance with GPM.1.2.4.0002.15. The presence and quantitative determination of flavonoids in the developed gel was determined spectrophotometrically on a UV-1800 SHIMADZU spectrophotometer, Japan. As a result of the studies carried out, the criteria for the quality of a multicomponent gel of reparative action were studied and proposed. According to the "Description" indicator, the polycomponent gel is a homogeneous mass of light brown color with a pleasant fruity odor without impurities. It has been established that the polycomponent gel is characterized by a slightly alkaline pH value, which creates optimal conditions for the healing phase of the wound process. It is shown that the use of the method of differential spectrophotometry makes it possible to carry out a statistically significant qualitative and quantitative assessment of the content of flavonoids in the composition of a polycomponent gel.

A Large Facial Nerve Schwannoma Presenting as a Swelling in Parotid Region-A Rare Case Report.

Extratemporal facial nerve schwannomas are rare entity. Pre-operative assessment is mostly inconclusive with differential diagnosis of parotid tumors. We hereby report a case of 28years female who presented with painless swelling in right parotid region with normal facial nerve function. Ultrasonography was suggestive well circumscribed and homogenous mass arising from the deep lobe of parotid gland. The Fine-needle aspiration cytology came out to be inconclusive. For further characterization of the tumor contrast enhanced MR imaging was performed. The MR imaging revealed well-defined cystic, heterogeneous, pear-shaped mass lesion situated near the stylomastoid foramen. Post operatively the mass came out to be schwannoma on histopathological examination.

MINERALOGICAL CHARACTERIZATION OF HEMATITE FROM ALINCI, REPUBLIC OF NORTH MACEDONIA

In this paper preliminary mineralogical characterization of hematite from Alinci is presented. Several crystals of hematite were collected for research. The straight-forward identification of the studied mineral sam-ples was enabled by optical microscope, SEM-EDS, ICP-MS and XRPD methods. The use of these methods showed that they are very useful methods for rapid mineral analysis contributing important analytical information. With these methods was established that the investigated mineral is hematite. Hematite crystals occur in the syenites. The size of the crystals is up to 2 cm. Crystals of hematite included small idiomorphic to hypidiomorphic crystals of rutile and ilmenite. Idiomorphic to hypidiomorphic crystals of ilmenite are corroded, relictized and separated as a solid break-down solution in a homogeneous FeO–Fe2O hematite mass. Twinned idiomorphic aggregate of ilmenite partially cata-clased into a homogeneous Fe-oxide mass also appear. Relict and corroded hypidiomorphic to allotriomorphic forms of rutile appear in a compact and homogeneous Fe-oxide hematite mass. EDS analyses on samples from Alinci show that hematite matrix contains from 1.59 to 5.89 % of Ti, whereas the rutile domains may contain from 1.15 to 1.50% of Fe.

Prikaz bolesnice sa rakom grlića materice i metastazama u desnoj komori

Introduction. Cardiac metastasis of uterine cervical cancer diagnosed prior to mortality (antemortem) is extremely rare. Case report. A female patient 49 years old was brought to the Emergency Department of the Institute for Treatment and Rehabilitation Niška Banja in cardiac arrest, without a pulse and blood pressure. An electrocardiogram revealed sustained ventricular tachycardia, which was terminated by two DC shocks (100J + 150J). Anamnesis and medical history revealed that she had had her squamous cell carcinoma of the uterine cervix removed and had subsequently received seven out of ten planned cycles of chemotherapy and twenty-eight cycles of radiotherapy. The patient was then transferred to the Coronary Unit, where cardiac ultrasound was performed. A homogenous mass measuring 31 x 50 mm was found in the right ventricle. In view of this, cardiac magnetic resonance imaging was performed. This confirmed the presence of the tumor mass in the right ventricle. Unfortunately, only a month after being discharged from our Institute, the patient was admitted to the Clinic of Neurology due to a loss of consciousness. Computer tomography of endocranium was performed revealing metastatic brain lesions. The patient succumbed to the disease just a couple of months later. Conclusion. We presented a rare case of antemortem diagnosed right ventricle metastases in a patient with uterine cervical cancer. Setting the diagnosis in these patients is a challenge in everyday clinical practice since metastases can produce the clinical picture that masks the real etymology of uterine cervical cancer.

Comparative morphological assessment of crosslinked and non-crosslinked xenograft biointegration quality

Relevance. Autografts are nowadays the gold standard for soft tissue augmentation and gingival recession coverage. However, as this method has a number of significant disadvantages, xenografts of various origins are more frequently used in dental practice. The study aimed to conduct a comparative morphological assessment of crosslinked and non-crosslinked xenogenous scaffold biointegration quality at different healing times.Materials and Methods. The study used 108 Wistar rats (54 males, six months old, fat mass 462 ± 20; 54 females, six months old, fat mass 414 ± 7) and randomly divided them into three groups. Group 1 had a xenogenous collagen matrix (Mucograft) placed in the subperiosteal tunnel in the mandibular vestibule area; Group 2 had an acellular dermal collagen matrix (Mucoderm) implanted in the subperiosteal tunnel, group 3 had D-ribose crosslinked xenogenous scaffold (Ossix Volumax) placed in the subperiosteal tunnel.Results. The studied xenogenous materials showed different integration and biodegradation extents. By postoperative day 7, Group 1 (Mucograft) showed a more pronounced inflammation. Non-crosslinked collagen materials had almost completely resorbed by the 30th day of observation, while a crosslinked collagen matrix was detected as homogenous masses. By the 90th day, all groups demonstrated the formation of new connective tissue with different functional characteristics; only Group 3 histologically revealed microfragments of the graft.Conclusion. The study shows that the xenogenous crosslinked and non-crosslinked collagen membranes may promote an increase in soft tissue thickness to a different extent. However, it is essential to improve the available materials to reach an outcome comparable to the autologous soft tissue graft treatment result.

Grain-scale numerical simulation of crystalline rock fracturing using Soundless Cracking Demolition Agents for in-situ preconditioning

Soundless Cracking Demolition Agents (SCDAs) are becoming increasingly popular for near-surface underground rock fragmentation applications. Several studies have been carried out to accurately simulate the fracturing processes of SCDA under its volumetric expansion inside a borehole. These numerical simulations and experiments have been limited mainly to homogeneous and intact rock masses in most cases. In this paper, we present a numerical approach that assesses the influence of mineral heterogeneity and rock mass defects (pore structures) on the fracturing performance of SCDA at the grain size level. For the simulation, a numerical crystalline rock grain assembly was generated using NEPER (a polycrystal generation tool) to introduce spatial variability of grain size that closely mimicked the grain arrangement of granitic rock. The assembly was then imported to 3-Dimensional Distinct Element Code (3DEC) as a block-based model. Heterogeneity was introduced to the model in terms of both mineralogical spatial distribution and strength variation. Pore spaces were introduced to the model using random grain deletion in the rock model. Intergranular and transgranular fracturing of the assembly was also simulated by utilizing a dual-layer discretization technique in 3DEC. SCDA charged fracture simulation was carried out in the model using a single central injection well. The results suggest intergranular fracturing to be the dominant mode of fracturing with additional grain crushing (transgranular fracturing) in the vicinity of the injection well. Grain size and in-situ stress anisotropy largely affect the direction and geometry of radial fractures initiated around an injection well during SCDA charging. The stress concentrations introduced by the pore structures of the matrix were found to have a strong influence on crack deflection, additional micro-cracking in the matrix and final tortuosity of the fractures produced. The results presented in this paper suggest that the micro-mechanical heterogeneity of the rock mass significantly influences the final fracture pattern produced by SCDA charging and therefore should be given more attention during crystalline rock pre-conditioning applications.

Изучение качества полуфабриката из ядер семян Pinus sibirica

Cedar-pine nut kernels are tasty and nutritious, which makes them a popular raw material. This research featured the effect of mechano-acoustic treatment on the quality of a novel semi-finished product from Pinus sibirica kernels.&#x0D; The production technology included the following stages. A mix of kernels and water underwent mechano-acoustic treatment (100–500 W/kg) at 63–67°C for 20 min. After that, the mix was packaged, cooled, and stored in plastic jars at 2–6 and –18–22°C. The study relied on conventional and standard research methods.&#x0D; The resulting light-cream homogeneous mass had a characteristic aroma and taste of cedar-pine nuts. Its nutrient composition was close to the original raw material: protein – 7.4%, fat – 22.6%, sugar – 1.4%, fiber – 1.4%, ash – 1.03%. However, the quantity of mesophilic aerobic and facultative anaerobic microorganisms decreased by three orders of magnitude and that of yeast decreased by six times. In addition, the semi-finished product contained no non-spore-forming Escherichia coli. A set of sensory, physico-chemical, and microbiological tests revealed the shelf life of 14 days at 2–6°C and 24 months at –18–22°C.&#x0D; The mechano-acoustic homogenizer made it possible to obtain a high-quality semi-finished product from Pinus sibirica nut kernels with a simple production technology, long shelf life, and great commercial potential.