Location Area Research Articles

Multichannel SDR Platforms for Mobile PCL Applications

This article presents a brief overview of hardware platforms with multiple RF input channels that can be employed in the area of passive coherent location (PCL) and passive synthetic aperture radar. Two families of the platforms are considered, i.e., field-programmable gate array based development boards and general-purpose software-defined radio receivers. Practical solutions that have been validated in field experiments are described: a high-performance four-channel platform and its lightweight version that perfectly suits the needs of low-power moving installations. The preliminary results of target detections are presented, which are obtained from the signals acquired with the lightweight PCL platform. Our results prove that, besides its simplicity, the small and low-power platform can be successfully used in PCL applications that use digital audio broadcasting transmitters as the source of illumination.

ANDROID BASED ANTENNA POSITIONING SYSTEM

To receipt the strongest possible signal, the antenna must be pointed at a precise angle in the direction of transmitter for effective wireless communication. If the movement of the antenna is controlled manually, there is a problem of aligning it at the optimum position to receive the strongest possible signal especially in remotely located areas. To overcome the difficulty of adjusting manually, Android Based Antenna Positioning System is proposed to remotely control the position of antenna by using an android phone. Two 12 V 28BYJ-48 stepper motors and ULN2003 drivers are demonstrated as a rotator to move the antenna in azimuth and elevation directions simultaneously. The commands provided from a web page through android phone are sent to the motors in real time via NodeMCU V3 microcontroller. MPU6050 sensor is mounted on the antenna to determine its position then the data collected is uploaded to Blynk application. When the antenna is positioned at specified direction in the direction of horn antenna (transmitter) based on the angles, speed and direction of motors’ movement, the strongest possible signal strength of antenna at specific frequency of 2.4 GHz can be determined using spectrum analyzer. When the antenna is positioned at X=27.52˚, Y=285.63˚, and Z=171.71˚, it has the strongest signal strength of -36.62 dBm as well as the gain of 1.713 dB. The stronger the signal strength of antenna, the higher the gain and the higher the quality connection.

The detailed morphological formation based on geological investigation in Somawangi and surrounding areas, Mandiraja District, Banjarnegara Regency, Central Java

Geological mapping is an activity to be able to know the geological conditions of a field. Somawangi Village and its surroundings have a geological history depicting the history of the past that continues until now. This location is located in Mandiraja District, Banjarnegara Regency with a morphology consisting of rock outcrops that record past history which can be used as learning media for the field of geological science. This study aims to determine the geological conditions and resource potential as well as geological disasters at the research site. From the results of the study, it can be concluded that the Geomorphology of the research area can be divided into 3 geomorphological units, namely the Sloping Structural Hills Unit (S3), Structural Sloping Lowland Unit (S1), and Volcano Denudational Hills Unit (V14) with the composition The stratigraphy of the study area is divided into 5 rock units, from the oldest to the youngest, the Somawangi Volcanic Breccia Unit, the Sandstone Unit, the Andesite Lava Unit, the Tuff Rock Unit, and the Kaliwungu Volcanic Breccia Unit. The geological structure of the research area is the Left Fault which is found along the rivers and hills in the eastern area of the research location with an emphasis on northeast-southwest. And the geological potential of the research area can be divided into 2, namely positive potential such as mining of sand and rocks around the river, the use of red soil as a ceramic and brick material, the use of andesite lava which has the potential to mine minerals, and the presence of mineralization alteration in the research area. While the negative potential is the potential for land movement or landslides

567 Compression of the lower uterine segment (colus) – new technique for reducing the bleeding during c-section in women with placenta previa

Objectiveto evaluate efficiency of a new approach for bleeding prevention and cessation during C-section in pregnant women with placenta previa. Study design: 61 pregnant women with diagnosed by ultrasound examination placenta previa were recommended planned operative delivery. All of them were randomized and divided into 2 groups. Study group (n=30) had elective C-section at 36-36+6 gestation weeks using our modified method of surgical hemostasis (COLUS): after placenta's we perfomed compressive suture on the lower uterine segment, uterine vessels' ligation and placed catheter inside the uterine cavity. All patients received prevention of neonatal RDS. Pregnant women in control group (n=31) had planned caesarean section at 38-39 weeks. Hemostasis of the area of the placenta location was reached by using electrocoagulation of the lower uterine segment vessels and additional suturing of bleeding areas, wherever necessary. Intraoperative blood loss and neonatal outcomes in both groups were evaluated, analyzed and compared respectively. Newborns’ condition was assessed using Apgar score at the 1st and 5th minute after delivery. Results: Bleeding control was achieved in all patients (100%). Average intraoperative blood loss in control group was 1277 ± 119 mL vs. 698±139 mL - in study group. Apgar score at 1'-5' min ranged between 7 and 9 in both groups. Weight and length of newborns were 2679±33g and 47±1cm for study group vs. 3151±78g and 48±1cm for control group, that matches the normal values for that gestational ages. No major complications occurred in both groups. Conclusions: tactic developed by us allows to prevent massive obstetric hemorrhage in most cases of placenta previa during cesarean section and lead to reduction of intraoperative blood loss by 45%.

Comparing oyster population structure and disease prevalence between a disease‐resistant and transplanted wild population in Barnegat Bay, NJ (U.S.A.)

Restoration efforts for the Eastern oyster, Crassostrea virginica, in Barnegat Bay are limited by natural habitat, shell resources, and recruitment. A pilot study was performed to compare two oyster restoration approaches direct‐planted at a subtidal site. The first approach used a disease‐resistant oyster strain remote set on whelk shell and the second approach used dredged oysters from a nearby wild population. Population size structure, mortality, and disease prevalence were monitored for both types for 3 years. Disease prevalence was significantly higher in the transplanted oysters resulting in reduced size and survivorship. This study highlights challenges restoring oysters with substrate limitations and proposes suggestions for future work in this location and similar areas.

Management of Basal Cell Carcinomas: Clinical Experience.

Objective:Basal cell carcinomas (BCC) mostly originate from the head and neck region. Main goal in BCC treatment is to achieve both aesthetic and functional results while observing the principles of tumor surgery. We report our experience regarding the clinical, histopathological features and surgical treatment results of head and neck basal cell carcinomas in the light of the literature.Methods:Files of patients with head and neck BCCs treated surgically in two university hospitals were retrospectively analyzed. Sociodemographic variables, location and size of tumor, pathological subtype, recurrence ratio, complications and technique of reconstruction were evaluated.Results:We analyzed 119 tumoral lesions in 105 patients of whom 55 (52.4%) were male and 50 (47.6%) were female. Their mean age was 67.3±12 years. The nasal region was the most common location area (n=42, 35.3%). Mean tumor size was 12.6 mm and tumor size range was 2–85 mm. The most commonly used reconstruction techniques were flap surgery, followed by primary closure, and skin grafts.Conclusion:It is important to remove the tumor with a clear surgical margin at least 4 mm and evaluate the five surgical margins with frozen sections intraoperatively. Operations are often performed under local anesthesia and are well tolerated by patients. The most common flaps used in the reconstruction are not only easy to learn but also sufficient in most cases. Skin grafts are good choices in defects located in the cavum concha and the external meatus.

Flora and Fauna Status in the Plan for Structuring the Merchant and Visitor Parking Areas in the Borobudur Temple Area, Indonesia

Borobudur Temple's ecotourism needs to be improved, namely the relocation of small traders' commercial activities and the arrangement of tourist parking lots. The purpose of this study was to analyze the status of flora and fauna in the area around Borobudur Temple for merchants and guest parking areas. A random sampling design was used to determine the biodiversity survey. Flora was observed using a quadrant approach, avifauna using a point count method, and dragonflies and butterflies using a transect method.  The Diversity Index value in the tree, pole, sapling, and seedling categories was 2, whereas the Diversity Index value in the herb category was > 2.89. The bird variety index value in the project location area is 2.25, whereas it is 1.76 outside the project area. In the project site area, dragonflies have a diversity index value of 2.17, whereas, outside the project area, the diversity index value is 1.62. The butterfly diversity index value outside the project area is 3.37, while it is 3.20 in the project location area, and there is no protected flora or animals. During the inspection, no protected plants or animals were found. The vegetation outside the project is the most stable. The project area on site has more bird variety and a better environment for dragonflies, but the outdoor project area has superior butterfly habitat. Existing vegetation will be maintained, and new trees will be planted as part of the management approach.

К оценке экологических рисков от загрязнения атмосферы Арк­тической зоны в условиях изменяющегося климата в ХХI в

The article formulates a methodological approach to assessing environmental risks from atmospheric pollution in the Arctic zone under a changing climate. It is based on the US EPA’s health risk assessment methodology and impurity concentration estimates by solving the adjoint equation for impurities transport and diffusion. The authors investigate the dynamics of health risk from atmospheric pollution PM10, PM2.5 in the areas of five arctic cities due to emissions from potential nearby and remote sources (including sources of transboundary pollution) in 1980—2050 taking into account various scenarios of climate change. The results indicate general tendency towards an increase in the danger of air pollution for humans in the forecast period until 2050 against the background of climate changes. The authors study the spatio-temporal dynamics in the location areas of PM10, PM2.5 sources that create the highest health risk in relation to Arkhangelsk. The results show the moderate narrowing of the high-risk zone in the first quarter of the XXI century and some upward trend in risk in the second quarter of this century. In the period up to 2050, the main impact on public health in the Arkhangelsk region is expected from emission sources located in the west and southwest. At the same time, the authors prove a tendency towards an increase in the influence of sources located in the southwestern and southern directions. In case of transboundary pollution, sources in the Scandinavian states, Baltics, the countries of Eastern and Central Europe, Ukraine and Belarus pose a danger. The results are important to develop proposals for ensuring the environmental safety in Arctic when planning the spatial development of the Russian Arctic zone and other country territories.

SIRTU PROCESSING AREA MAPPING USING UAV TECHNOLOGY, PT. CIPTA JAYA MULIA, JAYAWIJAYA REGENCY, PAPUA PROVINCE

PT. Cipta Jaya Mulia, as a company that has a mining business scope, seeks to increase its production activities. One strategy applied to plan additional areas of gravel processing locations is mapping using drone technology. Mapping using drones can shorten the time of mapping, where this mapping lasts for 80 minutes covering the area mapped by 5 ha with the altitude of flying drones 50 meters above ground level. Drones produce raster data in the form of photos (jpg files) of 1448 photos. The data is then processed using the Agisoft Photoscan software. The unified photos can then be reprocessed in other mapping software like ArcGIS, Global Mapper, and AutoCAD. The mapping results will be used to plan the addition of the gravel processing area of PT. Jaya Jaya Mulia.

Study on combustion characteristic of premixed H2/C3H8/air and working performance in the micro combustor with block

Combustion characteristics and thermal performance of premixed H2/C3H8/air in a micro planar combustor with block insert are experimentally and numerically tested. Effects of hydrogen blended fraction, equivalence ratio, flow rate and block width on the flame stability and heat transfer are discussed and analyzed. The results indicate that hydrogen addition is beneficial to the combustion stability in the micro combustor, and the lowest hydrogen blending mole fraction of the premixed H2/C3H8/air steady flame is obtained by experimental study. The combustion stability range is the widest in the combustor with a 0.7 mm block inserted at a high fuel rate. Moreover, the wall temperature is deeply influenced by hydrogen blending ratio and block size, that is, the combustor with appropriate block width and H2/C3H8 blended burning gains a higher radiation temperature. Then, effects of the hydrogen fraction on the reaction pathways are analyzed, and the fluxes of OH and H production by the key reactions such as H + O2 = OH + O and H2 = OH + H are calculated, where flame location and reaction area are significantly affected. It also finds that the combustor C0.7 fueled with 90% hydrogen gains the highest mean wall temperature of 1150.3 K and radiation power of 27.9 W under the same chemical energy input Ec = 90.6 W.

PECULIARITIES OF DESIGN OF SPECIAL CLOTHING FOR AMATEUR MOTORCYCLISTS

The article is devoted to the development of a special protective suit for amateur motorcyclists. As a result of the analysis of the operating conditions of motorcyclists’ sportswear, the most negative environmental factors affecting the driver’s body are identified – wind speeds from 0 to 60 km/h, possible precipitation in the form of rain, blunt objects in case of fall. Clothing for amateur motorcyclists should protect the body from the effects of these negative factors, ease of use, comfort at rest and during intense movements. A characteristic feature of the operating conditions of sportswear for motorcyclists is that a person is almost always in a sitting position on a motorcycle. The method of non-contact optical determination of the main poses and characteristic movements of amateur motorcyclists is used in the work. To ensure a given level of ergonomic fit of the motorcyclist’s suit, it is proposed to use the following characteristics: the range of arms of the dressed person; resistance to accuracy and speed of movements; moving areas of clothing relative to the body when moving; tensile deformation of materials in parts, lack of free folds; horizontality of the bottom of the product, the correct position of the sleeve. The “thread method” was chosen to assess the ergonomic conformity of the clothing design. Using this method allows you to measure the amount of movement of individual parts of clothing and stretch material in garments and assess the dynamic compliance of clothing. To determine the air permeability of materials, it is proposed to use the calculation method, which involves determining the coefficient of air permeability by the nature of the weave, the number of threads on the warp and weft and the raw material composition. The areas of location of windproof and shockproof pads are determined. By setting the frequency of occurrence of structural elements and articulations of costumes of professional motorcyclists, the suit model is finally determined: jacket with a stand-up collar, a central zipper and a sewn-on strap, with reliefs; pants on a belt and with a relief. The design of the suit of amateur motorcyclists (sports jacket and pants) was built according to the method of “Mueller and Son”. Further modeling of reliefs, yokes, cuffs and other structural elements was performed.

Drivers of youth participation in maize value addition in Gulu district, Uganda

This study focused on drivers of youth participation in maize value addition in Gulu district. The study identified the socioeconomic characteristics of the participating and non-participating youth and further ascertained the drivers of youth participation in maize value addition. A cross sectional household survey was conducted in Gulu district in two selected sub-counties and two divisions. Data were collected from a randomly selected sample of 168 participating and non-participating youth in maize value addition using structured questionnaires. SPSS and StataSE13 software were used for data analysis. Independent t- and chi-square tests were used to ascertain if significant differences existed between the participating and non-participating youth in maize value addition. A probit model was used to estimate the determinants of youth participation in maize value addition. Our results revealed that participating youth differed from their non-participating counterparts by age, education, experience in maize value addition, access to market, and location. Factors which significantly influenced youth participation included age, education, land size for maize production, location, access to market, training and extension. The study recommends that targeted training be organized for youth in areas of value addition technologies and strategic business location to enhance successful participation in agri-value chains.

Macro-seepage based potential new hydrocarbon prospects in Assam-Arakan Basin, India

Active macro seepages of methane that occur in between the north bank of the Brahmaputra river and Himalayan foothill region of Assam Arakan Basin, India, indicate the presence of hydrocarbon accumulation in the subsurface, but the hydrocarbon prospects in this region are not well studied. We carried out an extensive field sampling, which included a total of 58 sediment core collections from an active gas seepage location and nearby areas at a depth of 2–2.5 m. Our sample locations are placed at 1 km intervals laterally. We performed laboratory investigations and mapped near-surface chemical alterations associated with active macro seepages and microseepages. The analysis of geochemical composition of hydrocarbon gases in the sediment indicates both the biogenic and thermogenic origins of seeped hydrocarbons. The stable isotope analysis of methane suggests the presence of thermogenic as well as mixed biogenic-thermogenic gases. The presence of such mixing of gases is caused by the secondary alteration processes during their migration through potential faults and fractures. The trace elements of the sediments show anomalous concentrations at different parts of the study area, with a wide range of concentrations for Ba (54 to 492 ppm), Cu (1–25 ppm), Cr (61–329 ppm), Ni (1–42 ppm), Pb (2–48 ppm), Th (2–32 ppm), U (4–39 ppm), V (19–133 ppm) and U (0.87–6.5 ppm). There are higher concentrations of adsorbed gases, trace elements, and microbes along the identified lineaments. Such higher concentration can be triggered by high hydrocarbon-oxidizing bacteria count, which is greater than 104 cfu/gm of soil of bacterial growth around the lineaments. We identified potential hydrocarbon prospects based on the macro and micro seepage analysis using integrated geological, geochemical and microbial techniques in the study area.

Adaptive Guided Spatial Compressive Cuckoo Search for Optimization Problems

Cuckoo Search (CS) is one of the heuristic algorithms that has gradually drawn public attention because of its simple parameters and easily understood principle. However, it still has some disadvantages, such as its insufficient accuracy and slow convergence speed. In this paper, an Adaptive Guided Spatial Compressive CS (AGSCCS) has been proposed to handle the weaknesses of CS. Firstly, we adopt a chaotic mapping method to generate the initial population in order to make it more uniform. Secondly, a scheme for updating the personalized adaptive guided local location areas has been proposed to enhance the local search exploitation and convergence speed. It uses the parent’s optimal and worst group solutions to guide the next iteration. Finally, a novel spatial compression (SC) method is applied to the algorithm to accelerate the speed of iteration. It compresses the convergence space at an appropriate time, which is aimed at improving the shrinkage speed of the algorithm. AGSCCS has been examined on a suite from CEC2014 and compared with the traditional CS, as well as its four latest variants. Then the parameter identification and optimization of the photovoltaic (PV) model are applied to examine the capacity of AGSCCS. This is conducted to verify the effectiveness of AGSCCS for industrial problem application.

Vertical Accuracy of Freely Available Global Digital Elevation Models: A Case Study in Karaman Water Reservoir Territory

Nowadays, Uzbekistan pays great attention to the construction of reservoirs for irrigation and energy purposes. Identification of potential sites for the construction of reservoirs and obtaining initial data (the geographical location, storage volume and water surface area, profile of the dam site and others) imposes a great task on project institutes that develop design and survey and pilot work on water engineering. The use of GIS and RS technologies in human life has made it possible to accomplish many tasks quickly, cheaply and accurately. In this research, the main scope of the work is to assess the accuracy of the tested ALOS World 3D - 30m (AW3D30), ASTER GDEM v3, SRTM Plus, COP-30 and NASADEM products for the Karaman water reservoir (recommended for construction in Jizzakh region, Uzbekistan) territory by comparison with 36 Ground elevation points taken from topographic maps (1:25000). Results of statistics values calculated over the geodetic ground elevation points and the DEM data show that NASADEM and AWED30 DEM data are more accurate than other DEMs. The study found that the use of AWED30 and NASADEM data in the design of the proposed Karaman water reservoir for construction leads to a more accurate result. The results obtained using AWED30 data in determining the storage volume (W=780 mln.m3) and area (F=41.4 sq.km) of the water reservoir.

A combined algorithm for tunnel personnel localization based on error areal division

In a tunnel personnel positioning system, the average positioning error is typically used to reflect the precision and accuracy of the positioning algorithm. However, in practical applications, the error areal distribution is generally non-uniform. The positioning errors of some areas are greater than the average positioning errors, which lead to a low positioning accuracy. In this study, based on the simulation of the positioning error areal distributions of the quadrilateral centroid localization and maximum likelihood estimation algorithms, the causes for large positioning errors in upper and lower edges and four corners were analyzed. In addition, a combined localization algorithm based on error areal division was proposed to improve the average positioning accuracy. Thus, the quadrilateral centroid localization algorithm was used for the middle section of the tunnel personnel location area, the maximum likelihood estimation algorithm was used for the upper and lower edges, and the centroid algorithm was used for the four corners. The simulation results show that the average positioning errors of the combined localization algorithm were reduced by 5.56% and 44.76% when compared with those of the quadrilateral centroid localization and maximum likelihood estimation algorithms, respectively, while the maximum positioning error was reduced by 46.45% and 42.81%, respectively.

PENERAPAN FUZZY MULTIPLE ATTRIBUTE DECISION MAKING DALAM PEMILIHAN TEMPAT INDEKOS

Boarding house is an alternative choice for students to fulfill their need for a place to live. The variety of boarding houses, along with their respective advantages and disadvantages, becomes a challenge for students in determining the boarding house that suits their desires and needs. An in-depth evaluation is needed by comparing boarding houses based on certain criteria. In this study will be known the best boarding house based on four assessment criteria, price, facility, location, and room area. This research was conducted in Mathematics Department, Udayana University, using the combination of Fuzzy Analytic Hierarchy Process (FAHP) and Simple Additive Weighting (SAW) method. Sample in this study amounted to 118 respondents, with purposive sampling was the sampling technique. FAHP method is used to obtain the weight of each criterion, with the use of triangular fuzzy numbers for pairwise comparison scale of FAHP, and the use of the extent analysis method for the synthetic extent value of the pairwise comparison. SAW method is used for the ranking process of 75 boarding houses alternative. The result showed that the weight of each criterion being 32% (price), 23% (facility), 40% (location), and 5% (room area), obtained A46 as the best boarding houses with a percentage gain value of 71%.

Preimplantation genetic diagnosis (PGD) An update review of biopsy sample, technique, and diagnosis method

Preimplantation genetic diagnosis (PGD) is a genetic screening technique for embryos to be implanted in assisted reproductive technology or in vitro fertilization (IVF). PGD requires several stages and manipulation of gametes and embryos. Unfortunately, PGD is not always successful. This review was aimed to reveal the update of PGD, in term of biopsy sample, biopsy technique and its diagnosis technique. A computerized search of PubMed and google scholar database was conducted for general terms such as “preimplantation genetic diagnosis”, “polar body“, “cleavage“ and “blastocyst“ and followed by screening and evaluation of collected proper accordingly. In PGD, sample of biopsy can be obtained from (1) polar body of oocyte (2) blastomere of cleavage stage of embryo and (3) trophectoderm cells of blastocyst. The process of sloughing off the oocyte or embryo cell can be done through several techniques, namely Mechanical Partial Zone Dissection (PZD) which is carried out using two pipettes, namely holding pipette to hold the embryo and injection pipette to slit the blastomere/cell out of the embryo, while the Chemical Drilling Zone is done by using acid tyrode (pH 2.3) to create holes in the membrane, and Laser-assisted Dissection which is done by opening the zone through a laser that enters the located area of oocyte/embryo. Then, diagnostic methods are used to detect the abnormalities found, such as Polymerase Chain Reaction (PCR) which is used for diseases caused by single gene disorders, Fluorescence In Situ Hybridization (FISH) which is used to detect chromosomal abnormalities, Array Comparative Genomic Hybridization (Array CGH) which is used to investigate aneuploidy in oocytes, and gene expression could be evaluated on mRNA representing the genetic function of oocyte development. The most appropriate update of PGD is polar body for the sample, laser-assisted dissection for the technique and CGH for the diagnosis method. Keywords: PGD, sample of PGD, Technique of PGD, Diagnosis method of PGD.

Whole-body MRI evaluation in neurofibromatosis type 1 patients younger than 3 years old and the genetic contribution to disease progression

BackgroundNeurofibromatosis type 1 (NF1) is a common human genetic disease with age-dependent phenotype progression. The overview of clinical and radiological findings evaluated by whole-body magnetic resonance imaging (WBMRI) in NF1 patients < 3 years old assessed with a genetic contribution to disease progression is presented herein.MethodsThis study included 70 clinically or genetically diagnosed NF1 patients who received WBMRI before 3 years old. Clinical, genetic, and radiologic features were collected by retrospective chart review. In NF1+, widely spread diffuse cutaneous neurofibromas, developmental delay, autism, seizure, cardiac abnormalities, hearing defect, optic pathway glioma, severe plexiform neurofibromas (> 3 cm in diameter, disfigurement, accompanying pain, bony destruction, or located para-aortic area), brain tumors, nerve root tumors, malignant peripheral nerve sheath tumors, moyamoya disease, and bony dysplasia were included.ResultsThe age at WBMRI was 1.6 ± 0.7 years old, and NF1 mutations were found in 66 patients (94.3%). Focal areas of signal intensity (FASI) were the most common WBMRI finding (66.1%), followed by optic pathway glioma (15.7%), spine dural ectasia (12.9%), and plexiform neurofibromas (10.0%). Plexiform neurofibromas and NF1+ were more prevalent in familial case (28.7% vs 5.7%, p = 0.030; 71.4% vs 30.2%, p = 0.011). Follow-up WBMRI was conducted in 42 patients (23 girls and 19 boys) after 1.21 ± 0.50 years. FASI and radiologic progression were more frequent in patients with mutations involving GTPase activating protein-related domain (77.8% vs 52.4%, p = 0.047; 46.2% vs 7.7%, p = 0.029).ConclusionsWBMRI provides important information for the clinical care for young pediatric NF1 patients. As NF1 progresses in even these young patients, and is related to family history and the affected NF1 domains, serial evaluation with WBMRI should be assessed based on the clinical and genetic features for the patients’ best care.

Impact of planned heterogeneity of hydraulic conductivity on the results of pumping in an isolated unconfined layer

The paper presents the results of numerical simulation of cluster pumping test in an heterogeneous aquifer with transmissivtyvariability described by the model of a stationary random field of its logarithm with a given scale of correlation in the plan. The case of comparable planar distance to observation wells and correlation scale is considered. Parameters of the model of transmissivity heterogeneity of the simulated aquifer are obtained from the data of experimental tests carried out within the limits of the South Voronezhskoye groundwater field. The simulation has shown that the average results of interpretation of these cluster pumping data correspond to the geometric value of the transmissivity, which confirms the previously obtained approximate theoretical result for the model of small-scale heterogeneity and extends it to an almost important case of similarity of cluster well test planar sizes and spatial scale of heterogeneity. Thus, the present study has confirmed the possibility to apply standard methods in processing of cluster pumping data under planned heterogeneity conditions to estimate the equivalent aquifer transmissivity in the well cluster location area.