scholarly journals Predicting groundwater rise in historical centres of Eastern Siberian cities

2021 ◽  
Vol 44 (1) ◽  
pp. 73-84
Author(s):  
L. I. Auzina
Keyword(s):  
Analytical Model ◽  
Research Work ◽  
Underground Water ◽  
Deep Foundation ◽  
Hydrodynamic Mode ◽  
Main Method ◽  
Type Selection ◽  
On Line ◽  
Groundwater Rise ◽  
Foundation Type

The purpose of the research work is to develop a procedure for on-line prediction of the groundwater hydrodynamic mode change caused by the barrage effect of deep foundation structure construction. The main method used is the development of an analytical model as a result of variant solutions of the Laplace equation. The solutions have been elaborated in the course of studies conducted in historical centers of Irkutsk and other cities of Eastern Siberia. As a result, diagrams predicting the formation depth of groundwater level have been created, and the territories have been assessed according to their flooding conditions. An analytical model has been developed for backwater prediction. The model is rather simple, universal and can be applied for predictive calculations on the territories of historical cities located in similar geological and hydrogeological conditions. The available material analyzed, it is concluded that preliminary vertical planning of the territory, correct approach to foundation type selection as well as seasonal rise of underground water play a significant role in the formation of a new headwater elevation.

scholarly journals Digital Governance of Moroccan School Establishments

2021 ◽  
pp. 348-355
Author(s):  
Abderrazak Mazouak ◽  
Malika Tridane ◽  
Said Belaaouad
Keyword(s):  
Research Work ◽  
Project Planning ◽  
Pedagogical Practices ◽  
Third Phase ◽  
First Results ◽  
On Line ◽  
The One ◽  
Traditional Paradigm ◽  
And Control ◽  
Relationship Of

Digital technologies have come to shake up the traditional paradigm of learning, and to change the existing relationship of "know-teaching" to put in place a key concept of the time is "to accompany through digital tools Our intervention is part of a technical-pedagogical approach and will focus on an action research work in which we will try:First, to present on line an accessible digital device that facilitates and organizes project planning and provides means to govern and control the quality of administrative acts.Next, We will show the first results of the experimentation of this tool in our context of research represented by 355 directors of the secondary schools of the provincial delegation of Taza. Morocco, pointing out all the constraints and limitations that hampered its implementation.Finally, we confirm that the use of this device by our sampling has caused a triple effect on their pedagogical practices: the professionalization of strategic planning on the one hand, and the governance of resources and the rationalization of pedagogical decisions on the other hand and immediate evaluation and regulation in the third phase.

scholarly journals New Method for the On-Line Determination of Molybdenum Via New Microphotometric Home Mode Instrument, Using Hight Emitting Diode as a Variable Intensity Radiant Source with a Miniture Photosilicone Diode Detector for System: Molybdenum(VI)-Hydrogen Peroxide-Ammonium Solution

2007 ◽  
Vol 4 (4) ◽  
pp. 571-582
Author(s):  
Baghdad Science Journal
Keyword(s):  
Hydrogen Peroxide ◽  
Classical Method ◽  
Wave Length ◽  
Research Work ◽  
Standard Addition ◽  
Ammonia Solution ◽  
Variable Intensity ◽  
Measurement Variation ◽  
On Line

This research work aims to the determination of molybdenum (VI) ion via the formation of peroxy molybdenum compounds which has red-brown colour with absorbance wave length at 455nm for the system of ammonia solution-hydrogen peroxide-molybdenum (VI) using a completely newly developed microphotometer based on the ON-Line measurement. Variation of responses expressed in millivolt. A correlation coefficient of 0.9925 for the range of 2.5-150 ?g.ml-1 with percentage linearity of 98.50%. A detection limit of 0.25 ?g.ml-1 was obtained. All physical and chemical variable were optimized interferences of cation and anion were studied classical method of measurement were done and compared well with newly on-line measurements. Application for the use of developed method on alloy samples, using standard addition method and agreed quite wall.

scholarly journals Assessment of Quality of Underground Drinking Water: Very near (≤20 meters) and Far (>50 meters) from the River

2017 ◽  
Vol 5 (1) ◽  
pp. 21-26
Author(s):  
Munal Subedi ◽  
Mamata Gharti Magar ◽  
Gita Shrestha Rajbhandari
Keyword(s):  
Drinking Water ◽  
Ground Water ◽  
Fecal Coliform ◽  
Research Work ◽  
Total Sample ◽  
Underground Water ◽  
Ammonia Level ◽  
Biological Parameter ◽  
Bagmati River

Water quality information is needed to assess the state of water contamination in a variety of community, including those that rely primarily on unimproved underground sources of drinking water. The study was carried out with an aim to assess the quality of ground water in particular sites of the Kathmandu valley. The ground water samples were collected from shallow well, tube well and deep tube wells located at specific places of the valley. The research was focused on physiochemical and bacteriological analysis of underground water from sites near to Bagmati river (≤20 meters) and from sites far from Bagmati river (>50 meters). The sampling sites were scattered from Sinamangal to Minbhavan. Total sample size was 100, with 50 in each stratum. Study processing was done during the period from February 2013 to May 2013. Six physiochemical parameters namely pH, Conductivity, Ammonia level, Chloride level, Nitrite level, Nitrate level and Biological parameters (Coliform and Fecal coliform) of each sample was tested. Based on the research work, it was recorded that the underground water close to river (≤20 meters) has comparatively high physiochemical and biological parameter (Fecal Coliform) than underground water that were farther from the river (>50 meters). Fecal Coliform was predominant 58% (29/50) in water nearer to river rather than in water farther from the river 20% i.e. (10/50).  Similarly, the values of physiochemical and biological parameter increased comparatively with more distance i.e. ≤10 meters from river. The finding indicated that the underground water near to river is more polluted than far from the river.Nepal Journal of Biotechnology. Dec. 2017 Vol. 5, No. 1:21-26

ENERGY ESTIMATION FOR n-INPUT ADIABATIC LOGIC GATE: A PROPOSED ANALYTICAL MODEL

2013 ◽  
Vol 22 (05) ◽  
pp. 1350037
Author(s):  
JITENDRA KANUNGO ◽  
S. DASGUPTA
Keyword(s):  
Analytical Model ◽  
Logic Gate ◽  
Research Work ◽  
Maximum Error ◽  
Energy Performance ◽  
Operating Conditions ◽  
Energy Estimation ◽  
Adiabatic Circuit ◽  
Adiabatic Logic ◽  
N Input

In this paper, an analytical model is proposed to estimate the energy consumption of n-input adiabatic logic gate. The model is based on RC linearization of the adiabatic circuit network. To validate the model expressions, simulations are carried out at 90 nm technology node using the Cadence Spectre simulator. Model validates with simulation results at a maximum error equals to 9.94%. Model expressions are also applied in comparison of energy performance of adiabatic logic and conventional CMOS logic. Proposed research work suggests the operating conditions which makes the adiabatic logic more energy efficient than conventional CMOS logic.

scholarly journals Investigation of Water Leakage of Metro Segments Caused by Metro Underpass Structures

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Xiao Liang ◽  
Taiyue Qi ◽  
Zhiyi Jin ◽  
Pengtao Chen ◽  
Bo Lei ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Water Channel ◽  
Field Measurements ◽  
Water Channels ◽  
Underground Water ◽  
Confined Water ◽  
Field Investigations ◽  
On Line ◽  
Subway Stations ◽  
Technical Measures

Water leaking into metro segments is related directly to the presence of underground water. However, to date, the underground confined water channels formed by metro underpass reinforcement structures have not been considered as causes of the problem. In the present study, based on field investigations and geological data, confined water is identified as the source of segment leakage on Line 5 of Hangzhou Metro in China. It is then hypothesized that the problem stems from an underground confined water channel formed under the reinforced structure of the subway. Numerical simulations predict a settlement difference of 8–10 mm between the reinforcement area and the weak strata, and field monitoring data show this difference to be 8.62 mm. This consistency between the numerical simulations and the field measurements verifies the hypothesis. Finally, given the causes of underground confined water channels, corresponding technical measures such as piecewise secondary grouting are proposed to cut them off and avoid metro-segment leakage. The present research results contribute to the causes of and the laws governing the metro-segment leakage that occurs at subway stations and other reinforced structures.

scholarly journals Displacement Monitoring during the Excavation and Support of Deep Foundation Pit in Complex Environment

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Zhouqiang Li
Keyword(s):  
Axial Force ◽  
Time History ◽  
Horizontal Displacement ◽  
Underground Water ◽  
Surface Settlement ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Deep Foundation Pit ◽  
Anchor Cable ◽  
The North

Taking a super large deep foundation pit project as an example, the horizontal displacement of crown beam and driveway, surface settlement, axial force of anchor cable, and underground water level in the construction process of the foundation pit are dynamically monitored and analyzed. The excavation deformation rule of the deep foundation pit and the influence of excavation on surrounding buildings are analyzed. The results show that, with the excavation of the foundation pit, the crown beam and driveway of the foundation pit incline towards the direction of the pit and eventually tend to be stable. The variation of axial force of the prestressed anchor cable in the first layer of the foundation pit is basically consistent with the variation of horizontal displacement time history. The variation trend of the groundwater level at each side of the foundation pit is different but tends to be stable in a short time. In the whole monitoring period, the cumulative settlement value of each area of the foundation pit is within the controllable range, but the surface settlement of the north side of the foundation pit and a surrounding building has not reached stability, so it is suggested to extend the monitoring time of settlement in the relevant area.

scholarly journals Influence of GUJarati STEmmeR in Supervised Learning of Web Page Categorization

2021 ◽  
Vol 13 (3) ◽  
pp. 23-34
Author(s):  
Chandrakant D. Patel ◽  
◽  
Jayesh M. Patel
Keyword(s):  
Machine Learning ◽  
Information Retrieval ◽  
Research Work ◽  
Research Problem ◽  
Machine Learning Algorithms ◽  
Supervised Machine Learning ◽  
Web Page ◽  
User Query ◽  
On Line ◽  
Gujarati Language

With the large quantity of information offered on-line, it's equally essential to retrieve correct information for a user query. A large amount of data is available in digital form in multiple languages. The various approaches want to increase the effectiveness of on-line information retrieval but the standard approach tries to retrieve information for a user query is to go looking at the documents within the corpus as a word by word for the given query. This approach is incredibly time intensive and it's going to miss several connected documents that are equally important. So, to avoid these issues, stemming has been extensively utilized in numerous Information Retrieval Systems (IRS) to extend the retrieval accuracy of all languages. These papers go through the problem of stemming with Web Page Categorization on Gujarati language which basically derived the stem words using GUJSTER algorithms [1]. The GUJSTER algorithm is based on morphological rules which is used to derived root or stem word from inflected words of the same class. In particular, we consider the influence of extracted a stem or root word, to check the integrity of the web page classification using supervised machine learning algorithms. This research work is intended to focus on the analysis of Web Page Categorization (WPC) of Gujarati language and concentrate on a research problem to do verify the influence of a stemming algorithm in a WPC application for the Gujarati language with improved accuracy between from 63% to 98% through Machine Learning supervised models with standard ratio 80% as training and 20% as testing.

scholarly journals Heuristic and interactive technologies in teaching informatics at the pedagogical university as a means of developing the flexibility of thinking of students

KANT ◽  
2021 ◽  
Vol 38 (1) ◽  
pp. 332-335
Author(s):  
Abdulla Nadirsoltanovich Sabanchiev
Keyword(s):  
Research Work ◽  
Interactive Technology ◽  
Interactive Technologies ◽  
Main Method ◽  
Technology In Teaching ◽  
Pedagogical Literature

The aim of the study was to study heuristic and interactive technologies in teaching informatics at a pedagogical university as a means of developing students' thinking flexibility. The main method used in this research work is the analysis of scientific and pedagogical literature. It was concluded that the integration of heuristic and interactive technology in teaching informatics is a pedagogical condition for the formation of flexibility of thinking of students of a pedagogical university.

scholarly journals ENSURING SUCCESS IN THE FLIPPED CLASSROOM WHEN TEACHING ON- LINE

2021 ◽  
Author(s):  
Marie J. Myers ◽  
Keyword(s):  
Communities Of Practice ◽  
Flipped Classroom ◽  
Research Question ◽  
Student Understanding ◽  
Factual Knowledge ◽  
Deep Foundation ◽  
Main Research ◽  
Working Together ◽  
P 16 ◽  
On Line

As teaching moved on-line we had to rethink and readjust what approaches to use in order to reach the outcomes. Adjustments had to be made to the designed activities especially when groups had to meet in breakout rooms. We will present the various aspects that came under scrutiny, as for example, peripheral participation, the development of mini-communities of practice, cooperation, collaboration and mediation. We analyzed instructor’s journal notes and students’ products. There were 53 students in the classes concerned. The main research question is what was effective in making participants improve learning and how did the implementation increase their understanding of working together virtually. The method used is qualitative (Creswell, & Poth, 2018). The instructor took observational notes of processes and actions during planned activities. These notes were analyzed to uncover insights. In addition, student ‘products’ of group work were analyzed for the triangulation of results. Results show that the effort put into creating more engagement in the module brought about a number of interesting results that increased student understanding. Overall, findings show that participants reiterate expectations and summarize them, the repetition allowed a better grasp and this could also be due to the fact that during the reconversion, participants had to make sure they really understood the contents, i.e. ensuring that the meanings were clear which, in turn led to a better intake of specific features. As regards working together, several issues were identified, yet overall, all students were highly successful, due mostly to a supportive approach as regards feedback or a ‘feed-through’ approach. The theoretical underpinnings came from research on learning and pointed to the requirement of additional insights on the part of instructors especially when teaching has to take into account equity, diversity, inclusion and indigenization (EDII). Instruction had to be more connected to students’ lives. Bransford et al (2000) assert that “to develop competence in an area of inquiry, students must: a) have a deep foundation of factual knowledge, b) understand facts and ideas in the context of a conceptual framework, and c) organize knowledge in ways that facilitate retrieval and application” (p. 16).

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