bluuebunny/crossref_metadata_2025 huggingface dataset:
BIOGEOCHEMICAL CHARACTERISTICS OF EGGS OF BACKYARD POULTRY FROM BARITE MINERALIZATION, ANDHRA PRADESH, INDIA
Authors: Sekhar Reddy Chandra
Published: February 2023

In the present study an attempt has been made for biogeochemical studies involving elemental distribution and interactions in backyard poultry eggs from Vemula barite mineralized area to determine their indicator characteristics and of their possible application in applied environmental geoscience. The samples of backyard poultry eggs of hen were collected systematically. Their physical properties like moisture, organic matter and ash content are determined which shows wide variations. Trace element analysis of these samples was carried out for Ba, Sr, Cu, Pb, Zn, Mn, Ni, Co, Cr, Fe Mg, and Al. the parameter Coefficient of Apparent of Organic Binding (CAOB) is calculated for each element for the eggs. Wide variations are observed in the distribution of chemical elements in backyard poultry eggs. Ba occupies first position in the sequence in all parts of the raw eggs both on ash weight and dry weight bases. The enrichment of Ba concentration in backyard poultry eggs may be due to the presence of barite mineral. Therefore backyard poultry eggs may ideally be used as tools for their possible application in mineral exploration. This study has given greater scope in biogeochemical orientation surveys, and in environmental studies.
A STUDY ON OBJECT ORIENTED PROGRAMMING WITH C++
Authors: Singh Navpreet
Published: February 2023

C++ strongly supports the concept of Reusability. The C++ classes can be reused in several ways. Once a class has been written and tested, it can be adapted by another programmer to suit their requirements. This is basically done by creating new classes, reusing the properties of the existing ones. The mechanism of deriving a new class from an old one is called INHERITANCE.
Disturbance Rejection wi h a Highly Oscillating Second-order-like Process, Part VI: PPI Controller
Authors: Ali Hassaan Galal
Published: February 2023

A PPI controller is investigated for disturbance rejection associated with a highly oscillating second-order-like process. The controller is tuned using the MATLAB optimization toolbox for different error-based objective functions. The best  objective function suitable for this type of controllers for the highly oscillating second order process is assigned.   The unit step disturbance input time response of the control system has zero steady-state error and low response levels. The effect of the proportional gain of the PPI controller on the system dynamics is investigated. The PPI controller when used for disturbance rejection associated with the highly oscillating second-order process can compete well with  PD-PI and PI-PD controllers used for the same purpose.
MODIFIED RESPONSE SPECTRUM ANALYSIS FOR CONTROLLED STRUCTURES SUBJECTED TO EARTHQUAKE EXCITATION
Authors: G. Pnevmatiko Nikos
Published: February 2023

One case of the earthquake analysis is the response spectrum analysis. Where the structure is designed to protected byearthquakes which represented from design spectrum. However, very often the real earthquake that applied to structureexceeds the designspectrum. In that case the ductility of structure and the demand capacity are the line of defence to facethat situation. As a results damage will occurred in structure and the cost of rehabilitation is unavoidable. An alternativedirection which proposedin this paper is to design structure, equipped by control devices, capable to resist the incomingearthquake and remaining in elastic range and thus without damage. The idea is that once the response spectrum of theincoming earthquake is higher than the design spectrum at the eigperiods of the structure the control devices will beactivated, in order of milliseconds, and will change the period of structure. In that case the structure will avoid the“resonance” with the incoming earthquake and its responsespectrum will lie lower that the design spectrum at the neweig-periods of the structure. From the numerical results it is shown that the above control strategy is efficient in reducingthe response of building structures, with small amount of required control power.
CLOUD BASED INTEGRATED BHULEKH MODEL TRANSFORMING REVENUE ADMINISTRATION AND DIGITALLY EMPOWERING SOCIETY
Authors: Gupta Dr. Saurabh , Kumar Gangal Rajesh , Rajan Sameer
Published: February 2023

Government aims to provide various citizen centric services in economical and transparent manner and to deliver these services, Government has to adopt innovative use and mix of latest state of art Technology and Process reengineered Models of integration of various stakeholder in service delivery. In this paper, we highlight the pervasive step taken by the Government of Uttar Pradesh and its modus operandi to transform Bhulekh 1.0 to Bhulekh 2.0 by using Cloud Based Integration of stakeholders in revenue administration i.e. Integration with Registry Office, Revenue Courts, Banks, Aadhar, e-District and CSC, which has setup a new standard of digital delivery of services and improvement in performance of Revenue Administration through MeghRaj Cloud. Thus, Cloud Powered Bhulekh 2.0 is making a sustained transformation towards digitally empowered society by providing services from anywhere at anytime in responsive manner.
SEWAGE WATER CHRACTERISTICS OF BURLA TOWN & ITS IMPACT ON THE POWER CHANNEL
Authors: Ranjan Mahananda Malaya , Sahu Sujata
Published: February 2023

This study investigated the waste water characteristics of Burla town which is situated at one end of Hirakud dam and its effect on the power channel. The quality of sewage becoming stronger day by day and affecting both the ecosystem and human health. The sewage water of four major drains i.e. drain of Gaon Burla, drain of Gaud pali, drain of power channel bridge and drain of Bishnu Mandir pada drained into power channel was with high BOD, so not meeting the standard to discharge into inland surface water. The water quality of power channel at different sampling point compared with surface water quality standard (IS: 2296), it was observed that the hardness of SP 3 & 4 were beyond permissible limit and BOD value were high in each sampling point.
EXPERIMENTAL STUDY ON C60 GRADE SELF-COMPACTION CONCRETE WITH MARBLE POWDER
Authors: R Balamuralikrishnan , N Aravind , Nasser Al Khrusi Mohammed
Published: February 2023

Now days, self-compacting concrete is commonly used in construction industries. The main advantage of using selfcompaction concrete is, achieving the required strength without using the vibrators. In the present study, marble powderwas added with self-compaction concrete and their properties were studied. In Oman, marble factories produced marblepowders around 20-25% of total quantity of marbles by polishing and processing of marble blocks. These factories arefacing problem to dump those powders as landfill. These waste can be used as partially or completely replacement ofcement in concrete. In the present study, marble powders were mixed with C60 grade concrete as partial replacement ofcement (0%, 5%, 01% and 15%). Also flow test and compression test were conducted to study the effect of mixing marblepowder in self-compacting concrete.
AN EXPERIMENTAL STUDY ON STRENGTH AND CORROSION OF CONCRETE WITH STEEL SCRAP
Authors: R Balamuralikrishnan , Abdullah Al Wahaibi Salim , N Aravind
Published: February 2023

Steel scrap is a waste product of steel plate manufacturing industry. Every year huge quantity of steel scrap is produced from drilling the steel plates and other related works. Disposing of those steel scrap is a major issues in Oman and all over the world. Landfill is one of the method for disposing the scraps however it produces soil pollution. Also in Oman, there is no waste separation system, therefore all the waste materials are dumped in soil especially in the desert and it is harmful to the environment.  In the present study, steel scrap is added with concrete and the mechanical and physical properties were studied. Three tests were conducted such as slump test to measure the workability of fresh concrete, compressive strength test and corrosion test. In total, four various mixes were prepared with and without steel scrap. The first mix was normal mix without any steel scrap and the remaining three mixes were concrete with adding steel scrap with 1%, 2% and 3%. Based on the compressive strength test results, samples of 1%, 2%, 3% of adding steel scrap shows that the strength was increased for samples with 1% and 2% steel scrap and decreased for 3% steel scrap.
SOLAR ENERGY CONTRIBUTION IN DIGITAL INDIA & CHALLENGES OF CONSUMER AWARENESS TO SOLAR ENERGY
Authors: Dr. Brahampal Singh
Published: February 2023

Solar energy is not harmful as well as easier to use. But in India consumer awareness is the greatest challenge to solarenergy. It is a great need to aware everyone about this technology so that uses of this resource of energy can be increased.Solar energy can contribute in Digital India dreams of Indian Government. It can complete electricity requirements ofDigital India to spread internet up to villages & rural areas.The increasing prices for petroleum products, projection that petroleum resources would be exhausted in a relativelyshort period of time and the use of fossil fuel resources for political purposes will adversely affecting worldwide economicand social development. In addition, global warming caused largely by greenhouse gas emission fromfossil fuelgenerating systems is also a major concern. These problems can be overcome by alternative sources that are renewable,cheap, easily available, and sustainable. And the solar energy is best promising source. But unfortunately this source ofenergy has been get neglected.In this paper researcher has aimed to find out the consumer aware of solar energy, solar energy systems and its uses aswell as its contribution for digital India
RESEARCH ON DIRECT TORQUE CONTROL OF BRUSHLESS DC MOTOR BASED ON NEW STATOR FLUX LINKAGE SETTING
Authors: Weina Miao , Yi Zhang , Haifeng Wei , Liming Liu , Jiong Zhang , Cheng Jin
Published: February 2023

Aiming at the torque ripple problem of Brushless DC motor, a new stator flux setting method is proposed on the basis of direct torque control system. Firstly, the basic forming principle of traditional stator flux vector locus of circular and hexagonal is analyzed.And then, a new stator flux linkage setting method based on rotor position and dynamic current mode is proposed.The new stator flux linkage method is applied to the direct torque control system of Brushless DC motor.Theoretical analysis shows that the given flux linkage trajectory is consistent with the expected reference value, the torque ripple is smaller. The simulation results verify its effectiveness and are suitable for BLDCM DTC operation.
REVIEW ON INFORMATION SECURITY OF INDUSTRIAL CONTROL SYSTEMS
Authors: Mingqian Wang , Weijie Gu
Published: February 2023

Industrial control systems (ICS) are widely used in critical infrastructure such as national water resources, power, transportation, energy and so on. These important industrial systems have a profound impact on national security and economic development. In recent years, the occurrence of various security incidents and their serious consequences further reflect the seriousness of the information security situation of industrial control systems. In this paper, the current situation of information security in industrial control systems is summarized and analyzed. The existing problems in ICS information security and the corresponding measures taken are focused on. Furthermore, the problems to be solved and the development direction are pointed out.
LOCATION AND SEGMENTATION OF FACIAL FEATURES COMBINING PSO ALGORITHM AND SKIN COLOR
Authors: Zhi‐jie Li
Published: February 2023

A new method using PSO algorithm and skin color for the location and segmentation of  face and facial features is proposed. In the preprocessing stage, segmented face image is  obtained from initial color image. To achieve this goal, PSO algorithm is applied to search for the best face region. Then, based on the edge density of face image, eye region is located with PSO. Then, lips region is located using color component of skin segmentation. Finally, nose region is segmented based on the result of eyes and lips. The Simulation results show that this hybrid method is accurate and effective.
EFFECT OF CONSUMPTION OF FLOUR OF PORANG KAMORPHOPALUS MUELERI BLUME) ON GLUCOSE ABSORPTION IN THE DIGESTIVE SYSTEM THROUGH MEAL TOLERANCE TEST (MTT) AND REVERSE INTESTINE TEST
Authors: Donowarti Idiek
Published: February 2023

Porang flour is known to contain high glucomannan so that it can be beneficial in health. The purpose of this study was to determine the effect of porang flour absorbing on decreasing sugar absorbent in the digestive system.

The study was conducted through two experimental studies, the first through the Meal Tolerance Test (MTT) and the second through the reverse intestinal test. Giving porang flour consists of 3 doses of 0,3 g, 0,4 g and 0,5 g / kg BW respectively and using Wistar strain white rat test animals.

The results of research through MTT found that increasing the consumption of porang flour consumption can significantly reduce rat blood glucose levels at the end of the observation time of 120 minutes.

While in the reverse bowel test, the results showed that an increase in the administration of porang flour in rat jejunum succeeded in reducing the absorption of reducing sugars in rat jejunum.
DESIGN AND FABRICATION OF MULTI ENGINE AIR COMPRESSOR
Authors: Balashanmugam P. , Balasubramanian G.
Published: February 2023

A compressor is used to get high pressure air for many industrial and commercial purpose.  The triangular air compressor with the common compression chamber is a reciprocating type compressor, which delivers air at high pressure with less vibration and less power consumption than the existing ones.  Triangular air compressor with common compression chamber uses three cylinders and the entire cylinder and all the cylinders will have their own connecting red, crank shaft, pistons and chain sprockets and it is driven by a chain drive. During operation the pistons will move in phase from BDC to TDC and hence the air is compressed in the common compression head.  This common in the compression chamber will have one inlet and outlet valve.  From this valve, air is intake and delivered.  The common compression head will be is a triangular shape with angle of 60* from one side to another. The compressor is mechanical equipment which is used to increase the pressure with the help of the piston. Need to improve the performance of compressor by several methods. The main aim of the project is to make tri-cylinder, air compressor to generate large amounts of air with less power and low vibration. In Tri cylinder, air compressor the three cylinders are kept at 120 degrees to each other. The three cylinders are placed radically and equally apart such that the cylinder opening tends to meet on a common triangular compression chamber. The three pistons are made to compress air simultaneously onto the common triangular chamber over shorter stroke and the isothermal efficiency will be better than single cylinder with one piston. The motor is connected to the chain drive to drive the three crankshafts which are used to move the piston. If space is smaller the pressure will be more and bigger lower. If compressor is made to work at 1400 rpm air taken will be147.18 × 1400 = 206052 litters at 7 atmospheres pressure .The advantage with triangular compressor will be low vibration, smaller unit giving more output and so cheaper to make, ideal for air compressor is Airconditioning and Refrigeration, Vacuum pumps and general purpose usage.
INFORMATION PROJECTS QUALITY MODEL
Authors: Bergmann Ran
Published: February 2023

The requirement to establish a quality model has been felt by users for the purpose of evaluating the software quality quantitatively and qualitatively.
Information quality literature has provided a great amount of proposals for assessing the quality of information, but there is still a need to develop frameworks for assessing and improving the quality of information from the information consumer and the organizational point of view in the perspective of the information project classification. Moreover, for each dimension there must be set a clear definition what it represents, in order to be able to compare it for any type of Information Project (i.e. Information System) throughout its life cycle [2]. 
In order to improve the quality of information projects, it is required to present an information project quality improvement model that can be iterative measured and improved, during a period of time. Quality improvement is an iterative process that requires planning, execution, checks and feedback from the information consumers (IS users) in the organization. By this process, during a certain time frame, the quality of the project can be improved and reach higher business performances. Therefore, the quality activities are performed on a time scale, all along with the project's life cycle, in order to achieve an effective improvement of the project quality.
TWO LEADERSHIP TRAITS: HUMILITY AND ETHICS
Authors: Prabhu G. M.
Published: February 2023

There are several books and articles on leadership.  Many of them focus on leadership styles and approaches such as selecting the right people, or getting the wrong people off the bus, or motivating the right behavior, or using a dance metaphor in a leadership-followership paradigm. The important character traits that a leader must possess are rarely mentioned. This paper focuses on two qualities that a great leader must possess, namely humility and a strong sense of ethics.
ENGINEERED MSW FUELS CAN REDUCE NOX AND OTHER EMISSIONS
Authors: P.E. Allen Williams
Published: February 2023

A five year feasibility study was conducted using process modeling to design new fuels that could inherently reduce nitric oxides, sulfur dioxide and mercury emissions in power generation. The commercial station chosen for the study was a northeastern utility in Homer City with a history of emission difficulties. Heat data for the utility's unit 3 was available from diagnostic work done at this station back in the early 1980s.  

Unit 3 has a pulverized coal (with CE Raymond Mills) balance draft steam generator with single stage reheat rated at 4,280,000 lb steam per hour. The Turbine is a 692 MW four valve unit operating in variable pressure mode. The unit utilizes two steam driven boiler feed pumps.
USE F CLOUD COMPUTING AND ITS BENEFITS
Authors: Kaur Kuljeet , Kaur Dr. Pankaj Deep
Published: February 2023

With the initiation of internet in the 1990s to the present day facilities of universal computing, the internet has reformed the computing world in extreme way. It has travelled from the concept of parallel computing to distributed computing to cluster computing to grid computing to utility computing to virtualization and recently to cloud computing, in future Internet of Things. Cloud computing is a style of computing in which dynamically scalable and other virtualized resources are provided as a service over the Internet. In this paper explain the cloud computing deployment models and delivery models, with the help of model cloud computing do work properly in the area of IT sector. In this paper describe the traits and benefits of cloud computing.
Archaeology of dress along the Middle Nile
Authors: Yvanez Elsa
Published: February 2023

Archaeology of dress along the Middle Nile

Fashioning Sudan is developing the archaeology of dress practices as a holistic method to reconstruct narratives of identity in ancient Sudan and Nubia. We will investigate remains of garments made of textile and leather, the artefacts that lay closest to our bodies from birth to death, and are at the crossroads between individuals, technology and social praxis.
Removal and recovery of nitrogen with the Aqua2®N-process demonstrated
Authors: Lundbom Anna
Published: February 2023

Removal and recovery of nitrogen with the Aqua2®N-process demonstrated

The overall goal of the RE-Fertilize project was to demonstrate a new removal and recovery process for nitrogen, producing a nitrogen product suitable for fertilizers, for example. In the project, a demonstration plant for the process has been built, and the process has been demonstrated in operational environment with a removal rate of >95% of the ammonium nitrogen. The produced ammonium sulphate has been evaluated and its agronomic effect proven. A conceptual design has been conducted within the project, as well as establishing a business case, business model and business plan for commercialising the process and product.
The TopSpec system: new levels in antibody characterisation by top-down mass spectrometry
Authors: Zubarev Roman
Published: February 2023

The TopSpec system: new levels in antibody characterisation by top-down mass spectrometry

In the TopSpec project, tools to establish the sequence repertoire of human antibodies and their respective antigens have been developed to better understand how the human organism defends itself against diseases. Results obtained confirm that this is a breakthrough technology that will revolutionise academic, clinical and industrial proteomics and dramatically advance the development of antibody- and protein-based therapeutics.
DEVELOPMENT OF ANIMATION VIDEO MEDIA FOR IPS LEARNING MATERIALS GLOBALIZATION
Authors: Hasibuan Mhd Faisal Raya , Hidayat Hidayat
Published: February 2023

Mhd Faisal Raya Hasibuan, 171434266, ''Development of Animated Video Media for Social Studies Learning Globalization Materials'' This study aims to determine the feasibility of animated video media in social studies learning material for Globalization. This research was conducted at the Library of UMN Al Washliyah Medan. The method use dis the development of research methods 4-D, which consist soft 4 stages which define (definition) , design (planning), development (development) and disseminate (spread). Animated videos were validated by two experts, namely material experts and media experts. Furthermore, product trials were carried out to material experts and media experts. The results of the validation test of the experts received an assessment with a decent category. Based on the results of the study,

 

Keywords: learning media, social studies, animated videos.
VOCABULARY TEACHING STRATEGIES BY EFL TEACHERS OF JUNIOR HIGH SCHOOL LEVEL
Authors: Panjaitan Esra Elisabeth , Sibarani Exsanti Jumina , Saragih Erikson
Published: February 2023

This research is dedicated to the research vocabulary teaching strategies by EFL teachers of Junior High School. The rationale of this research is to investigate the teachers’ strategies in the teaching and learning process. In addition, this study applied a qualitative approach to analyze data Data were collected in-depth survey by questionnaire with ten teachers as respondents. In collecting data there 3 steps, namely The writer selected the respondents (ten teachers), the writer made ten questions in a questionnaire for respondents by using google form and The writer wrote a survey’s answer based on the survey that had been recorded.In this research, the questions are divided into two parts namely, multiple-choice and essay. In the multiple-choice, the teacher just chose one of the options and on the essays, the teacher can give short or long answers. The data were analyzed in some way:(1)classify data,(2)make a transcript data in written language, (3)Give a sign, and (4) gather the same sign. In general, a result shows the teacher strategies in  (1) teacher preparation in teaching vocabulary,(2) sources of vocabulary teaching, (3) kind of teacher question, (4) teacher activities during the teaching process, and (5) students activities during the earning process. This result can be seen by the teacher’s answers in the questionnaire. This result is expected to help the teacher to learn vocabulary and will greatly contribute for the teacher to teaching vocabulary
READING TEACHING STRATEGIES APPLIED BY ENGLISH TEACHERS IN SENIOR HIGH SCHOOL
Authors: Pandiangan Tina , Lumban Gaol Sinta Parulian , Saragih Erikson
Published: February 2023

Reading is an activity of observing written language which aims to gain knowledge or messages conveyed by the author. Many students have difficulty in reading and understanding the reading text. By knowing the factors that cause students' difficulties in reading. This proves that not all students can read well. This is due to the tendency of some teachers not to use teaching strategies appropriately. For this reason, this paper was created to explain what strategies in teaching reading are suitable for teachers to apply to students. The data was obtained by giving a questionnaire in the form of a Google form to 10 respondents who were English teachers who taught in senior high school. The data collection technique of this research is a questionnaire containing 10 questions. The results of the data analysis show that there are several techniques used by teachers in teaching reading strategies, namely Scanning, Skimming, Active Reading, Speed Reading, Structure-Proposition-Evaluation, and Survey-Question-Read-Recite-Review. However, not all students can accept and understand these teaching techniques. In this context, the teacher must be able to provide teaching strategies that are in following the interests and abilities of students. Adjustment strategies affect students' ability to follow lessons. The ability of teachers to combine more than one strategy is required to be able to help their students to be skilled at reading well in English.
THE RELATIONSHIP OF ARM MUSCLE STRENGTH AND EYE COORDINATION TO SHOOTING ABILITY IN BASKETBALL GAMES IN STUDENTS SMAN 1 SEISUKA COAL REGENCY
Authors: Abady Andi Nur Abady , Siregar Fajar Sidik , Munawar Ahamad Al , - Muhammad Syaleh , Winata Devi catur
Published: February 2023

This study aims to determine: (1) There is a relationship between eye-hand coordination and shooting skills in the basketball game of students at SMAN 1 Seisuka, Batubara Regency. (2) Whether or not there is a relationship between arm muscle strength and shooting ability in basketball games for students at SMAN 1 Seisuka, Batubara Regency. (3) There is a relationship between hand eye coordination and arm muscle strength on shooting skills in basketball games for students at SMAN 1 Seisuka, Batubara Regency.

The population is all students of SMAN 1 Seisuka, Batubara Regency, the sample used is 30 male students, the sampling technique is purposive sampling technique. The data analysis technique used is descriptive analysis, person product moment correlation coefficient analysis (r) and multiple correlation analysis (R) at a significant level of 0.5.

The results showed that: (1) There was a significant relationship between eye-hand coordination and shooting skills in the basketball game of students at SMAN 1 Seisuka, Batubara Regency with an r value of 0.537. (2) There is a significant relationship between arm muscle strength and shooting ability in the basketball game of SMAN 1 Seisuka students, Batubara Regency with an r value of 0.611. (3) There is a significant relationship between hand eye coordination and arm muscle strength together with the shooting ability of the basketball game students of SMAN 1 Seisuka, Batubara Regency with an R value of 0.740, for the determinant coefficient value of 54.8%.

Conclusion: There is a significant relationship between hand eye coordination and arm muscle strength on shooting ability.
Lessons related to Heavy Metal Pollution through Minamata Case Narrative Study
Authors: Susdarwono Endro Tri
Published: February 2023

This study aims to provide an overview or description of learning related to heavy metal pollution through a narrative study of the Minamata case. The research method used in this study is an experimental method, this method is intended to find the relationship of certain variables to other variables under tightly controlled conditions. The characteristics contained in this study include: manipulation, control or control, and observation. The data analysis technique uses the Wilcoxon marked level method to test differences, this method is used to analyze the impact caused by a treatment or stimulus as well as to test the difference in the values ??of two populations represented by two sample groups. This study concludes that the learning method through narrative studies is proven to be able to make students more mastery of materials related to heavy metal pollution. This conclusion is based on several series of hypothesis testing that have been carried out where the alternative hypothesis states that the posttest score of students in the experimental group is greater than the posttest score of students in the control class.
Study And Recommendations Of Education Policy In The Middle Of The Covid-19 Pandemic
Authors: Simanullang Pardomuan
Published: February 2023

Education is a vehicle for the transformation of culture, values, science and technology that has become the center for the development of the nation's character, both through formal and non-formal education. Quality human resources are the main capital to achieve the welfare of the nation. Increasing intellectual, emotional and spiritual intelligence is a prerequisite for the success of Indonesian human development. Education that seeks to produce good citizens is described in nation and character building by instilling the spirit of nationalism in order to form a complete Indonesian human being. This means that education is expected to form students who have national character embodied in the moral values of their citizens, By bringing back the values contained in the many cultures and making them one of the guidelines in the growth of student character, it is believed that they can support superior human resource education. With the creation of superior human resources, superior institutions, superior regions and superior and prosperous nations will be created
Increasing Statistics Learning Outcomes For Civil Engineering Students Through Problem Based Learning (Pbl) Model
Authors: Pohan Rizky Febriani , Rambe Muhammad Rahman , Arifitriana Wirna , Siregar Nurhasana , Nasution Alvi Sahrin
Published: February 2023

Statistics is a science that is used in various fields. However, students are still not very interested in participating in the learning. This makes the motivation and learning achievement of students' statistics decreases, especially in the problem solving abilities obtained by students are low. The learning model that can overcome the weaknesses of these students is the Problem Based Learning (PBL) model. This study aims to determine the improvement of Statistics learning outcomes for Civil Engineering Study Program students through the application of Problem Based Learning (PBL) model. The method used in this study is an experimental method using a one group pretest-posttest research design. The research sample was students of the Civil Engineering Study Program, Graha Nusantara University, Padangsidimpuan, third semester , Academic Year 2021-2022, totaling 40 people. The instruments used in this study were observation sheets and tests. The data analysis technique used is comparative descriptive analysis. Based on the results of the research obtained, it can be concluded that the Problem Based Learning (PBL) model is able to increase the statistical learning outcomes of students of the Civil Engineering Study Program at Graha Nusantara University, Padangsidimpuan by 23.08% which is characterized by an increase in individual learning mastery, the highest score, the lowest score and the average score of Statistics learning outcomes. So this learning model is very suitable to be developed in Statistics courses at the University level.
Design of ECG Signals Filter Circuit Based on OTA Filtering
Authors: Liu Zixiao
Published: February 2023

The ECG signal reflects the physiological characteristics of the heart to a certain extent and is an extremely important clinical reference for the diagnosis, treatment, and prevention of cardiovascular diseases. However, the ECG signal is affected by various noises during the acquisition process, especially the 50Hz noise from power lines which makes the diagnosis and analysis of ECG difficult. In this paper, a transconductance amplifier with strong practical applications is proposed and designed to filter out interference from ECG signals in power lines, based on the characteristics of ECG signals and the ability of differential signals to effectively resist external common-mode noise. This amplifier is able to effectively filter out 50Hz interference from power lines and features a high common-mode rejection ratio and low power consumption, in addition to using relatively few components and low production costs.
Comparison of Low Power High Speed Comparator for Flash ADC
Authors: Guan Zheng
Published: February 2023

The analog to digital converter (ADC), a bridge between digital world and analog world, plays a crucial role in the modern semiconductor industry. Among different types of ADCs, the flash ADC (also known as the direct-conversion ADC) is exceedingly fast, whose high sample rate enables many large bandwidth applications, such as optical communication, radar detection. The comparator circuit is one of the critical components of flash ADC. The characteristics, like latency, gain and power consumption, of comparators determine the overall performance of flash ADCs. This paper analyzes and compares different types of comparator architecture and suggests a high-performance design for flash ADC.
Identification of glass products based on cluster analysis and random forest model
Authors: Lu Mengqi , Xu Xin , Shao Di , Tang Rui
Published: February 2023

The main chemical composition of glass is silica (SiO2). Due to the high melting point of pure quartz sand in the raw material of glass production, flux should be added in order to reduce the melting temperature. The main chemical composition varies with the flux added. In this paper, through the grey correlation analysis can be concluded that the key factors influencing the classification to the content of lead oxide, and barium oxide, and through the random forest, hierarchical clustering, and K - Means method to classify different types of glass and the division of the class, the glass can be divided into high potassium, high potassium not weathering, lead, barium, lead, barium not weathering four categories of two classes, a total of eight classes, Through the test of classification sensitivity and reliability, it shows that the three models are reasonable and can be applied.
Composition analysis of glass products based on correlation analysis
Authors: Xu Xin , Shao Di , Lu Mengqi , Zhang Hong
Published: February 2023

The main raw material of glass is quartz sand, and the main chemical composition is silica (SiO2). Due to the high melting point of pure quartz sand, in order to reduce the melting temperature, it is necessary to add flux in refining. The main chemical composition varies with the flux added. By comparing the chemical composition statistics of high-potassium glass and lead-barium glass before and after weathering, it is found that SiO2 content of high-potassium glass increases after weathering, while lead-barium glass increases after weathering. The content of SiO2 decreased after weathering. From the mapping relationship before and after weathering, the content of each chemical component before differentiation was calculated. The correlation of chemical components between high potassium and lead and barium glasses can be seen by Pearson correlation coefficient. By grey correlation analysis, it can be seen that lead oxide and barium oxide are the main factors to distinguish the two types of glass. Lead barium contains more lead oxide and barium oxide than high potassium, and high potassium contains more potassium oxide than lead barium.
Composition analysis and identification of ancient glass objects based on Spearman correlation analysis model
Authors: Zhou Jinghang , Xu Kexin , Xiang Taoyu , Yu Yajing
Published: February 2023

With the rising fervor of Belt and Road, it has drawn attention and research to the ancient Silk Road commodity trade exchanges, of which ancient glass products are valuable physical evidence of the early commodity trade exchanges. Now the chemical composition of ancient glass is analyzed and identified, which helps to find out the key and know-how of ancient glass products refining technology. In this paper, we establish a chi-square test and Spearman correlation analysis model to quantitatively analyze the relationship between weathering and type, decoration and color to establish a weathering interval estimation model, so as to predict the chemical composition content before weathering. Logistic dichotomous classification model, BP neural network model, BP neural network model optimized by genetic algorithm and random forest classification prediction model were established respectively to predict three high potassium glasses and five lead-barium glasses out of eight compounds.
Research on glass classification and identification based on support vector machine
Authors: Zhang Jianan , Ji Jie , Lu Yubing
Published: February 2023

Ancient glass is very susceptible to the environment of buried environment and weathering, in the soil its internal elements and the environment a large number of exchange, so that the proportion of glass components change, in order to identify the type of glass artifacts, we established a glass classification and identification model based on support vector machine (SVM). Firstly, 67 valid sample points of known categories were classified and sorted, and the data were integrated in the order of lead-barium glass, high-potassium glass, and unknown cultural relics. Use matlab to bring the sorted data into the SVM classification model to obtain the type of unknown cultural relics. Finally, the sensitivity analysis of classification was carried out by reducing the number of known types of cultural relics and adjusting the calcium oxide (CaO) content of lead-barium glass and high-potassium glass. The results showed that the glass artifacts numbered A6 and A7 were classified as high potassium weathering. A1 is high potassium unweathered; A2 and A5 are lead-barium weathering; A3, A4 and A8 are lead barium unweathered. Finally, sensitivity analysis shows that the overall stability of the model is good.
Analysis and Prediction of Chemical Composition of Ancient Glass Relics
Authors: Wan Tao , Qi Wen , Cheng Kangqi
Published: February 2023

Glass was introduced into China long ago via the Silk Road. After the ancient glass was buried, its internal elements would change under the influence of the environment. It is of great significance for archaeological work to study the changes of these chemical components. In this paper, the chemical composition of ancient glass products is analyzed and predicted by using R-type clustering, BP neural network, multiple linear regression and other models.First, after using SPSS statistical data, Pearson chi square test was conducted to draw a conclusion that the category, decoration and color were not related to whether the surface of the cultural relics was weathered. Then, descriptive statistics are made on the data. Finally, the multiple linear regression model is used to predict the unknown type of cultural relics. The results show that after the weathering of cultural relics, the content of potassium oxide, calcium oxide, aluminum oxide and magnesium oxide decreases compared with that before weathering, while the content of iron oxide increases.The main chemical components of high potassium glass relics and lead barium glass relics are calculated by entropy method. Compared with silicon dioxide and aluminum oxide, they have less influence on other chemical components. Therefore, these two chemical components are eliminated to classify cultural relics. Then, the R-type clustering model is established to classify the cultural relics, and the high potassium weathering type is obtained: 22 cultural relics sampling points form a category, and the other cultural relics form a category.
A Statistical Method for Component Analysis and Identification of Differentiated Glass Products
Authors: Chen Tingyi
Published: February 2023

As the most widely used product in human daily life, glass was used as important material evidence for trade in ancient times. With the continuous development of my country's archaeological undertakings, the analysis and identification of the components of ancient glass products have become a research topic of practical significance. In order to predict the chemical composition content before weathering, we first analyze the relationship between surface weathering and the three variables of glass type, texture, and color from two aspects: correlation and difference. According to the discrete distribution state after quantification of qualitative data does not meet the normal distribution, Spearman correlation analysis and chi-square test model are used to draw the conclusion: relatively speaking, the degree of correlation between glass surface weathering and glass type is relatively high; glass type is closely related to the other three There are significant differences among the variables, decoration, and color. From the analysis of the influence of chemical composition, combined with relevant chemical data and verification, we can draw the following conclusions. In a certain range, the increase of CaO content is beneficial to increase the stability of the glass. From the point of view of numerical fitting solutions, we consider that the ridge regression model prediction model has higher sensitivity than other models such as Lasso regression due to the large difference in component values. Therefore, in this paper, we use the ridge regression model to fit the functional relationship between weathering and different categories of attributes and then use the prediction model obtained by ridge regression to solve the content before weathering.
Banning of Future Forward
Authors: McCargo Duncan
Published: February 2023

On 21 February 2020, Thailand’s Future Forward Party was dissolved by order of the Constitutional Court. [1] Sixteen members of the party executive – including leader Thanathorn Juangroongruangkit, secretary-general Piyabutr Saengkanokkul, and spokesperson Pannika Wanich – were banned holding political office for the next ten years.[2] Eleven of the sixteen were also party list MPs. The party’s crime? Illegally accepting two loans from Thanathorn, totalling 191 million baht. The case hinged on the Court’s interpretation of Sections 62 and 72 of the 2017 (2560) Organic Act on Political Parties.

 

[1] For the full decision, see Constitutional Court Judgement 5/2563, 21 February 2020, http://www.constitutionalcourt.or.th/occ_web/download/article/article_20200228165606.pdf

[2] For an official English summary of the judgement, see https://www.constitutionalcourt.or.th/occ_en/download/article/article_20200305112117.pdf
Open to Interpretation? Allowing the Prime Minister to Serve for More Than Eight Years
Authors: Pongsapan Munin
Published: February 2023

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An Investigation of Role of Portfolio Assessment on Students’ Achievement
Authors: Deeba Farah , Raza Muhammad Aqeel , Gillani Iram Gul , Yousaf Muhammad
Published: February 2023

Portfolio assessment has emerged as an alternative technique of assessment of students due to its noteworthy role in enhancing students’ achievement. Therefore, the present study was an attempt to develop a portfolio and further investigate the role of portfolio assessment on students’ achievement at the secondary school level students. Pupils of the ninth class were considered as the population of the research study. Two groups of ninth-class students (Control Group and Experimental Group) from a public school located in Multan were treated as a sample of the study. The targeted population consisted of 73 students. The control group students (N=42) were assessed through traditional assessment techniques, whereas the experimental group (N=31) received treatment (portfolio assessment strategy). Data were collected through the results of the first-term examination, second-term examination, third-term examination and monthly tests from September to December. All tests and results were saved in their portfolios, and later on, their achievement was assessed on the basis of recorded information in a portfolio. Test scores and self-reporting questionnaire scores were used as measures of students’ academic achievements and mean The percentage of the experimental group was 67.3%, while the control group got 52.3%. There was no significant difference between the experimental and control groups for the first term and a significant difference for the third term.
Teachers' Written Feedback Practices in Promoting Academic Writing Skills of ESL Learners
Authors: Jalalzai Nargis Noor , Looni Farida , Umer Aisha
Published: February 2023

Higher education students, need to develop strong academic writing skills to be successful. Therefore, improving one's command of the English language, and specifically, one's command of academic writing at the undergraduate level, is essential for educational excellence. The most significant difficulty, on the other hand, is related to untrained instructors and inefficient pedagogical practices as a major cause of poor academic writing skills. As a result, this study was undertaken using a qualitative technique to investigate students' perceptions about the written feedback practices their teachers employ to improve academic writing skills among them. The population of this study consisted of all the enrolled students in the universities in the province of Sindh. By using a convenient sampling technique, 30 students were recruited to collect the data from conducting interviews. The findings indicated various helpful written feedback practices teachers utilize to develop academic writing skills in university students, which include grammatical correction, constructive suggestions, highlighting errors, and providing corrections. Based on these data, it is vital for concerned authorities to organize workshops or training programs to enhance teachers' capabilities to employ various kinds of written feedback techniques to promote academic writing skills among undergraduate students.
The Role of Emotional Intelligence, Self-Confidence, and Leadership Styles among Psychologists
Authors: Khan Asad Ullah , Asma Marrij , Ahmed Jawaad , Shahzadi Fakhra
Published: February 2023

This study aims to determine how emotional intelligence, self-confidence, and leadership styles affect how well Pakistani psychologists do their jobs. In order to do this, a sample of 210 psychologists was polled about various leadership styles, including authoritarian, democratic, and laissez-faire. The Mayer-Salovey-Caruso Emotional Intelligence Test (MSCEIT), the Self-Confidence Scale (SCS), and the Leadership Styles Questionnaire (LSQ) were used to test their emotional intelligence, self-confidence, and leadership styles, respectively. Emotional intelligence and self-confidence were favourably correlated with performance, whereas authoritative leadership, democratic leadership, and laissez-faire leadership all had a favourable effect on performance. These results show that emotional intelligence, self-confidence, and how a psychologist leads significantly impact how well they do their job.