bluuebunny/crossref_metadata_2025 huggingface dataset:
واقع إدارة استمرارية الأعمال أيزو 22301 في القطاع العام لمواجهة الأزمات: المملكة العربية السعودية نموذجاً
Authors: الغامدي أسماء عبد الرحمن
Published: April 2022

يسعى هذا البحث إلى تسليط الضوء على واقع إدارة استمرارية الأعمال في القطاع العام لمواجهة الأزمات في المملكة العربية السعودية. وقد اعتمدنا لقياس الواقع معيار أيزو 22301 لاستمرارية الأعمال، فيما أسفرت النتائج على تبني بعض منظمات القطاع العام لنظام إدارة استمرارية الأعمال وفق معيار أيزو 22301. وكما قدم بحثنا الحالي العديد من التوصيات والمقترحات التي تكفل تطوير إدارة استمرارية الأعمال BCM في القطاع العام بالمملكة العربية السعودية بما يحفظ كفاءة أداء القطاع العام في مواجهة الأزمات.
Improving the performance of ultrasound transducer using simulation and modeling
Authors: Rama Abd Rabouh Mahsoun, Yasser Estanbouli Rama Abd Rabouh Mahsoun, Yasser Estanbouli
Published: April 2022

Improving medical imaging using ultrasound is important in order to get a high- resolution medical image, this research aims to achieve a physical modeling and simulation of an ultrasound transducer (UT) showing the electrical impedance of the piezoelectric material, in order to increase the transducer performance at both high and low frequencies by choosing a suitable piezoelectric material with good impedance. we adopted in this research Lead Zirconate Titanate material (PZT4), and performed modeling using mathematical equations that describe the actual physical behavior in the transducer structure and made a graphic user interface (GUI) using Matlab environment that demonstrate it, and display the electrical impedance of the piezoelectric material. As well as using Simulation by Finite Elements Methods (FEM) using On Scale environment and comparing the results in both of them. The results matched at a certain frequency, to give a clear image in the deep areas of the body. This later enables us to make modifications to the transducer structure and add backing layer and matching layer for the piezoelectric material.
Study some specifications of copolymer (PLA-PEG)
Authors: Gema Farzat Khlil, Husine Ahmed Baker, Ghazal Mohamad Tohmaz Gema Farzat Khlil, Husine Ahmed Baker, Ghazal Mohamad Tohmaz
Published: April 2022

This study about the blends of Poly Lactic Acid/ Poly Ethylene Glycol (PLA/PEG) 4000 copolymer at concentrations (9%,6%,3%,0%)) wt%) from (PEG) and (PLA) (5%) (w/w) by using casting solvent method to production films. The nonwoven nano fibrous mats were obtained by electro spinning of (PLA/PEG) solutions in chloroform, at weight ratios (70/30) (v/v), respectively. DSC is employed to measure the crystallinity difference between (PLA/PEG) blends and their nonwovens mats. the thermal properties (DSC) of (PLA/PEG) copolymer blends films and electrospun nano fiber mats such as (Tm) melting temperature, (Tg) glass transition temperature, (Tc) crystallization, Xc crystallinity rate and enthalpy . the FTIR test was done for all samples to figure the nature linking between (PLA) and (PEG),the results were that (6%) (w/w) of (PEG) was the optimized rate to apply Electrospinning method , data of DSC test defined that (Tg) and (Tm) were decreased, and that refer to occurrence physicist cross linking between the used substances (Completely miscible blend) when the electrospinning method was applied, also Xc for these nonwoven mats was decreased which has in turn an important effect on the speed of biodegradble for poly lactic acid (PLA).
Investigating the common factors in welding defects of metal connections
Authors: Islam Nazak Hamed Ragab, Tariq Ibrahim Muhammad Al- Nakhilan Islam Nazak Hamed Ragab, Tariq Ibrahim Muhammad Al- Nakhilan
Published: April 2022

There are many reasons that lead to the occurrence of defects and errors in the welding process, and many researches have talked about this and concluded for several factors, some of which are technical related to the conditions of the welding process, and some are related to the skill of the worker himself, and others are related to the factors surrounding the welding process and metallurgical changes. The common factors of aspects of the welding process, which would lead to errors in the welding process by identifying the basics of obtaining a good welding line and identifying them in points and then changing these basics and recording the difference by means of simple destructive tests and then coming up with common fixed points that are classified as the basis for not obtaining good welding lines This is in order to avoid the technician and the specialist for these reasons, and let it be a scientific subject taught to those interested in welding operations. The experiment was done on steel of the low carbon type as a result of its high welding ability. Electric arc welding was chosen for its spread in several fields. With the choice of the flat horizontal position for these tests. The study ended with the verification of three common factors that would be the main causes in the various welding operations, which are the presence of oxides and impurities in the welding metal, the lack of skill of the technical worker, and the conduct of welding operations in an atmosphere of air current.
Building Adaptive reuse determinants Case study: Al Andalus hospital in Aleppo city
Authors: Wajih Mohammed Nasrat Sammani, Saad Eldin Aladdin Zeitoun Wajih Mohammed Nasrat Sammani, Saad Eldin Aladdin Zeitoun
Published: April 2022

With the growth and expansion of cities, their requirements change, which calls to Adaptive reuse of their buildings in proportion to these changing requirements in a sustainable manner. Therefore, the aim of the research is to reach the most important axes and determinants of building adaptive reuse process that must be taken into account when thinking about the of building adaptive reuse, through which it is possible to assess the success of building adaptive reuse process Employment, by explaining the concept of building adaptive reuse in addition to reviewing the ARP model to determine the possibility of building adaptive reuse and the ADAPT STAR model to increase the possibility of adaptive reuse in the future, leading to the extraction of the seven main axes of building adaptive reuse and then conducting a questionnaire to determine the relative weights of these axes and determine the impact of each A specific of the determinants of building adaptive reuse on the adaptive reuse process as a whole and on each other, ending by applying the results of the theoretical framework to a practical case of building adaptive reuse in the city of Aleppo. The research reached to extract sub-determinants specific to each of the seven axes regulating building adaptive reuse, and the research recommended the adoption of the extracted model to determine the extent of success of building adaptive reuse and to clarify the weaknesses and strengths of that process.
Extracting Experiment Statistics, Conditions, and Topics from Scientific Papers with STEREO
Authors: Epp S. , Hoffmann M. , Lell N. , Mohr M. , Scherp A.
Published: April 2022

We address the problem of extracting reports of statistics along with information about the experiment conditions and experiment topics from scientific publications. A common writing style for statistical results are the recommendations of the American Psychology Association (APA). In practice, writing styles vary as reports are not 100\% following APA-style or parameters are not reported despite being mandatory. In addition, the statistics are not reported in isolation but in context of experiment conditions investigated and the general experiment topic. We address these challenges by proposing a flexible pipeline STEREO based on wrapper induction and unsupervised aspect detection to extract experiment statistics, conditions, and topics. Thus, in contrast to existing rule-based tools like statcheck with a pre-defined set of rules, we learn rules via induction. Hierarchical wrapper induction is applied to learn rules to extract the reported statistics. Challenge here is to apply wrapper induction on an information extraction task without having formatting landmarks as they can be exploited in HTML pages. Result of step 1 is a set of extracted statistic reports together with sentences in which the reports were found. This is used as input to step 2 of STEREO, which has two parts. We extract experiment conditions using a grammar-based wrapper. Furthermore, we identify the experiment topic using an unsupervised attention-based aspect extraction approach adapted to our problem domain. We applied our pipeline to the over 100,000 documents in the CORD-19 dataset. It required only 0.25% of the CORD-19 corpus (about 500 documents) to learn statistics extraction rules that cover 95% of the sentences in CORD-19. The statistic extraction has 100% precision on APA-conform statistics, which is identical with statcheck. In addition, STEREO can extract non-APA writing styles with 95% precision, which statcheck does not support. Extracting non-APA conform statistics is important as they make more than 99% of all $113$k extracted statistics. We could extract in 46% the correct conditions from APA-conform reports (30% for non-APA). The best model for topic extraction achieves a precision of 75% on statistics reported in APA style $73% for non-APA conform). We conclude that STEREO is a good foundation for automatic statistic extraction and future developments for scientific paper analysis. Particularly the extraction of non-APA conform reports is important and allows applications such as giving feedback to authors about what is missing and could be changed. Finally, STEREO complements existing metadata extraction tools and can be integrated in a general scientific paper analysis pipeline.
PENGEMBANGAN SENSOR GLUKOSA BERBASIS MATERIAL TIN OXIDE NANO DENGAN MENGGUNAKAN FIBER BRAGG GRATING
Authors: Rohadi Diptya Latifa Rohadi Latifa , . Asnawi
Published: April 2022

Abstrak

Diabetes melitus merupakan masalah kesehatan masyarakat yang disebabkan oleh faktor genetik maupun usia. Upaya mencegah penambahan jumlah penderita diabetes maka perlu adanya pemantauan kadar glukosa dalam tubuh. Pemantauan dilakukan dengan mengukur kadar glukosa dalam darah dengan cara penusukan jari yang menyebabkan ketidaknyamanan pada pasien. Maka dikembangkan metode pengukuran non-invasive yang sesuai dengan tujuan penelitian ini yaitu mendeskripsikan cara dan hasil pengembangan sensor glukosa berbasis material tin oxide nano dengan menggunakan fiber bragg grating (FBG). Sensor dengan menggunakan  fiber bragg grating berbasis optik material tin oxide nano memiliki kepekaan yang tinggi dan periode reaksi yang cepat sebagai sensor glukosa. Hasil penelitian menunjukkan sensitifitas yang terjadi terkait pergeseran nilai indeks bias dan nilai panjang gelombang pada larutan glukosa. Pada konsentrasi glukosa sebesar 10% terjadi pergeseran indeks bias yaitu 1,345. Pergeseran nilai panjang gelombang terjadi pada indeks bias 1,332 yaitu 1550,072.  Dengan demikian adanya pergeseran panjang gelombang terhadap indeks bias larutan glukosa dari berbagai konsentrasi glukosa ini menunjukkan bahwa pengembangan FBG berbasis material tin oxide nano dapat digunakan sebagai sensor glukosa. Sensor fiber bragg grating dengan menggunakan pelapis nanomaterial SnO2 dapat diimplementasikan dengan menggunakan saliva pasien diabetes melitus (DM).

Kata kunci: Fiber Bragg Grating, Diabetes Melitus, SnO2

Abstract

Diabetes mellitus is a public health problem caused by genetic factors and age. In efforts to prevent the increase in the number of diabetics, it is necessary to monitor glucose levels in the body. Monitoring is carried out by measuring the level of glucose in the blood by means of pricking a finger which causes discomfort to the patient. So a non-invasive measurement method was developed that is in accordance with the objectives of this study, namely to describe the methods and results of the development of a glucose sensor based on tin oxide nanomaterial using a fiber Bragg grating (FBG). The sensor using optical fiber Bragg grating of tin oxide nanomaterial has high sensitivity and a fast reaction period as a glucose sensor. The results showed that the sensitivity occurred related to the shift in the refractive index value and the wavelength value in the glucose solution. At a glucose concentration of 10%, there was a shift in the refractive index, namely 1.345. The shift in the wavelength value occurs at the refractive index of 1.332 which is 1550.072. Thus, the shift in wavelength towards the refractive index of glucose solutions from various glucose concentrations indicates that the development of FBG based on tin oxide nanomaterial can be used as a glucose sensor. The fiber Bragg grating sensor using the SnO2 nanomaterial coating can be implemented using the saliva of diabetes mellitus (DM) patients.

Keywords: Fiber Bragg Grating, Diabetes Mellitus, SnO2
PROJECT IOT ALAT KEAMANAN KENDARAAN BERBASIS APLIKASI BLYNK
Authors: Nugroho Aryoghi Cahyo , . Dzulkiflih
Published: April 2022

Abstrak

Penelitian ini bertujuan membuat alat pendeteksi posisi kendaraan dengan mendapatkan titik koordinat kendaraan pada pengoperasianya akan dibantu perangkat mikrokontroler Arduino uno R3 untuk menjalankan berbagai macam perintah seperti perintah mengirimkan koordinat lokasi melalui SIM 800l v2 dan perintah menyalakan Buzzer, Pada pengembangan penlitian kali ini perangkat tidak menggunakan Perintah SMS tetapi dengan Prinsip IOT dengan memanfaatkan teknologi GPS (Global Positioning System) dimana data Latitude Magnitude dikirimkan kepada web server aplikasi Blynk dan di visualisasikan dalam google maps sehingga posisi kendaraan dapat diketahui keberadaanya lokasi akan otomatis diperbarui dan perangkat dan akan menampilkan lokasi secara Real-Time pada aplikasi Blynk, selain itu adanya Buzzer juga dapat membantu menemukan posisi kendaraan secara lebih pasti.

 Kata Kunci: Alat Keamanan, GPS Neo 6m, Blynk, Arduino Uno, SIM 800l v2

 

Abstract

The research aimed at creating the vehicle's position detection device by getting the coordinates of the vehicle in operation will help a micro-controller arduino uno r3 to run a wide range of commands such as the order to transmit coordinates via sim 800l v2 and the command to turn on the buzzer, In this time of research the device does not use text commands but rather on the principle of iot by using GPS technology (global positioning system) where latitude data is sent to the blynk application's web server and visually scanned in Google maps so that the vehicle's position can be known to exist automatically renewed and the device and will real-time locations on the blynk application, Beyond that the buzzer would also help to find the vehicle's position more firmly.

Keywords: Security Tools, GPS Neo 6m, Blynk, Arduino Uno, SIM 800l V2
SEBUAH REVIEW: SPEKTROSKOPI IMPEDANSI ELEKTROKIMIA DAN APLIKASINYA DALAM BATERAI LITHIUM-ION
Authors: Mahendra Antony , Supardi Zainul Arifin Imam
Published: April 2022

Abstrak

Dengan meningkatnya kebutuhan bahan penyimpan energi, baterai rechargeable lithium ion menjadi obyek yang banyak dipelajari. Banyak metoda yang digunakan untuk menyelidiki karakteristik elektrokimia dari baterai, salah satunya adalah Electrochemical Impedance Spectroscopy (EIS). Dengan EIS, informasi dari hubungan state of charge pada siklus tertentu baterai dengan resistansi elektrolit, resistansi film permukaan dan resistansi transfer muatan didapatkan dengan menggunakan rangkaian ekivalen yang sesuai dengan plot Nyquist. Pada artikel ini, perbandingan antara hasil karakterisasi EIS katoda LiCoO2 dan LiNi1/3Co1/3Mn1/3O2 dalam baterai lithium ion juga dipaparkan berdasarkan laporan dari penelitian yang pernah dilakukan para peneliti sebelumnya. Telah dilaporkan bahwa nilai DLi+ dari LiCoO2 lebih besar daripada LiNi1/3Co1/3Mn1/3O2, dan nilai j0 dari LiNi1/3Co1/3Mn1/3O2 lebih besar dari pada LiCoO2.

 Kata Kunci: Electrochemical Impedance Spectroscopy (EIS), Plot Nyquist, Baterai Lithium Ion, State of Charge

 

Abstract

With increasing need for energy storage materials, rechargeable lithium ion battery become an object that is much studied. There are many methods that used to investigate electrochemical characteristic of battery, one of them is Electrochemical Impedance Spectroscopy (EIS). With the EIS, informations about relation between state of charge at some certain cycle of battery with electrolyte resistance, surface film resistance, and charge transfer resistance are obtained with modeling equivalent circuit according to the Nyquist plots. In tis article, a comparison between the results of EIS characterization of cathode LiCoO2 and LiNi1/3Co1/3Mn1/3O2 in lithium ion battery is presented based on report studies that have been conducted by previous researcher. It has been reported that DLi+ value of cathode LiCoO2 is greater than DLi+ value of cathode LiNi1/3Co1/3Mn1/3O2, and j0 value of cathode LiNi1/3Co1/3Mn1/3O2 is greater than j0 value of cathode LiCoO2.  

 Keywords: Electrochemical Impedance Spectroscopy (EIS), Nyquist Plot, Lithium Ion Battery, State of Charge
SINTESIS NANOFIBER KITOSAN/PVA SEBAGAI WOUND DRESSING DENGAN METODE ELEKTROSPINNING
Authors: Istiqomah Kholli Vatul Nur , Kusumawati Diah Hari
Published: April 2022

Abstrak

Nanofiber kitosan/PVA dapat digunakan sebagai wound dressing karena memiliki sifat bioaktif dan biokompatibel. Pembuatan nanofiber dilakukan dengan menggunakan metode elektrospinning. Penelitian ini menggunakan larutan kitosan dengan konsentrasi 3% dan larutan PVA dengan konsentrasi 10%. Pencampuran larutan kitosan dengan larutan PVA mengunakan perbandingan volume:volume yaitu 1:4, 2:4 dan 3:4. Selanjutnya dilakukan proses elektrospinning dengan parameter meliputi tegangan 20 kV, jarak jarum ke kollektor 15 cm, serta laju alir 5 ml/jam. Nanofiber yang dihasilkan dari proses elektrospinning kemudian dikarakterisasi menggunakan Fourier Transform Infrared (FTIR) yang berfungsi untuk melihat gugus fungsi yang terdapat pada sampel, Scanning Electron Microscopy-Energy Dispersive X-Ray (SEM-EDX) yang berfungsi untuk melihat morfologi dan material penyusun, dan X-Ray Diffraction (XRD) berfungsi untuk mengidentifikasi fasa kristalin dalam material. Nanofiber yang dihasilkan  menunjukkan nanofiber mengandung gugus kitosan dan PVA yang dibuktikan adanya kemiripan spektrum antara nanofiber kitosan/PVA dengan senyawa kitosan dan PVA. Nanofiber kitosan/PVA 1:4 dapat digunakan sebagai wound dressing karena membentuk nanofiber lebih baik dibanding lainnya, dimana fibers yang dihasilkan homogen dengan ukuran fiber yang hampir sama yaitu 177,1 nm, rapat, dan permukaannya halus tanpa adanya beads yang dibuktikan dengan karakterisasi SEM.

 

Kata Kunci: kitosan, elektrospinning, nanofiber, wound dressing

 

Abstract

The manufacture of nanofibers was carried out using the electrospinning method. This study used a chitosan solution with a concentration of 3% and a PVA solution with a concentration of 10%. Mixing the chitosan solution with the PVA solution used a volume: volume ratio of 1:4, 2:4 and 3:4. Furthermore, the electrospinning process was carried out with parameters including a voltage of 20 kV, a needle to the collector of 15 cm, and a flow rate of 5 ml/hour. The nanofibers produced from the electrospinning process were then characterized using Fourier Transform Infrared (FTIR) which serves to see the functional groups contained in the sample, Scanning Electron Microscopy-Energy Dispersive X-Ray (SEM-EDX) which functions to see the morphology and constituent materials, and X-Ray Diffraction (XRD) serves to identify the crystalline phase in the material The spectrum of similarities between nanofiber chitosan/PVA with chitosan and PVA compounds proves that the produced nanofiber contains the chitosan and PVA group. Chitosan/PVA 1:4 nanofibers can be used as wound dressings because they form nanofibers better than others, where the resulting fibers are homogeneous with almost the same fiber size, namely 177.1 nm, tight, and smooth surface without any beads as evidenced by SEM characterization.

 

Keywords: chitosan, electrospinning, nanofiber , wound dressing
NANOPARTIKEL FE3O4/SIO2 BERBASIS BAHAN ALAM SEBAGAI MATERIAL PENGADSORPSI PEWARNA DALAM AIR
Authors: WAHYU YULIANTI ZUN , MUNASIR MUNASIR
Published: April 2022

ABSTRAK

Methylene blue merupakan senyawa organik non-biodegradable yang dapat menyebabkan pencemaran lingkungan terutama pencemaran air. Methylene blue merupakan pewarna sintetis yang memiliki gugus benzene dan sulit untuk didegradasi. Sehingga upaya yang bisa dilakukan untuk menghilangkan methylene blue dalam air yaitu menggunakan metode adsorpsi. Metode ini dilakukan dengan mensintesis Fe3O4/SiO2 sebagai absorben dengan metode in-situ, dimana Fe3O4 memiliki sifat kemagnetan yang dapat menghilangkan katalis dan limbah zat warna, sementara SiO2 memiliki sifat kompabilitas yang baik sebagai bahan pelapis magnetik. Nanokomposit Fe3O4/SiO2 sebelum diaplikasikans sebagai adsorpsi dikarakterisasi dengan uji XRD dan FTIR. Dari hasil XRD dapat deketaui pola difraksi nanokomposit Fe3O4/SiO2 bersesuaian dengan pola difraksi Fe3O4, sedangkan FTIR menunjukkan keberdaan SiO2. Pada hasil penelitian menunjukkan bahwa variasi konsentrasi larutan berpengaruh terhadap nilai kapasitas adsorpsi. Semakin besar konsentrasi larutan methylene blue maka nilai kapasitas adsorpsinya semakin besar yaitu 2,41 mg/g sedangkan nilai efisiensinya menurun yaitu 84%.

 

Kata Kunci: Nanopartikel, Methylene blue, Kapasitas adsorpsi

ABSTRACT

Methylene blue is a non-biodegradable organic compound that can cause environmental pollution, especially water pollution. Methylene blue is a synthetic dye that has a benzene group and is difficult to degrade. So that efforts can be made to remove methylene blue in water using the adsorption method. This method is carried out by synthesizing Fe3O4/ SiO2 as absorbent by the in-situ method, where Fe3O4 has magnetic properties that can eliminate catalysts and dye waste, while SiO2 has good compatibility properties as a magnetic coating material. Fe3O4/SiO2 nanocomposites before being applied as adsorption were characterized by XRD and FTIR tests. From the XRD results, it can be determined that the Fe3O4/ SiO2 nanocomposite diffraction pattern corresponds to the Fe3O4 diffraction pattern, while the FTIR shows the presence of SiO2. The results showed that variations in the concentration of the solution affect the value of the adsorption capacity. The greater the concentration of the methylene blue solution, the greater the adsorption capacity value is 2.41 mg / g while the efficiency value decreases by 84%.

 

Keywords: Nanoparticle, Methylene blue, Adsorption capacity
Pengaruh Jarak Transmitter Dan Receiver Terhadap Performasi Modul HC12 Pada Prototipe LSM (Landslide Smart Mitigation)
Authors: DWI LESTARI KUSUMAWATI , MADLAZIM MADLAZIM
Published: April 2022

Abstrak

Pengiriman data melalui modul wireless dipilih pada perangkat prototipe karena lebih efisien dan cepat dalam transmisi data dengan jangkauan jarak tertentu. Selain itu, pengiriman dari transmitter ke receiver pada prototipe LSM dapat menampilkan hasil deteksi secara real time. Metode yang digunakan untuk analisis kinerja pengiriman data modul HC12 pada prototipe LSM adalah metode eksperimen. Pengujian dilakukan dengan memanipulasi jarak dari transmitter ke recaiver setiap perubahan 50m. Parameter nilai deteksi sensor soil moisture dan potensiometer slider dikontrol pada nilai tertentu. Hasil yang didapatkan pada pengujian modul wireless HC12 pada prototipe LSM adalah ketika jarak antara transmitter dan receiver ≥750m, maka receiver (papan informasi digital) tidak dapat menampilkan nilai deteksi sensor sekaligus warning system. Hal ini dikarenakan adanya redaman dan juga noise pada saat penguijian performansi modul HC12 berlangsung. Akan teteapi, modul wireless HC12 lebih tepat dijadikan sebagai perangkat pengiriman data dari transmitter ke receiver pada prototipe LSM untuk monitoring bencana tanah longsor dibandingkan perangkat modul wireless yang lainnya. Sehingga, pemantauan dapat dilakukan secara cepat, akurat, dan real time untuk dapat mengurangi kerugian material dan korban jiwa.

Kata kunci: modul wireless HC12; jarak transmisi; loss data

Abstract

Transmission of data via wireless module was chosen on prototype devices due to its efficiency and speed in transmitting data with a certain distance range. Additionally, transmitter dispatch to the receiver on a prototype of LSM can display the detection results in real time. The HC12 module on the LSM prototype is an experimental method. System evaluation was tested by manipulating the distance from the transmitter to the receiver every 50m. The parameters of the detection value of the soil moisture sensor and potentiometer slider are controlled at a certain value. The results of the HC12 wireless module evaluation on the prototype LSM are when the distance between the transmitter and the receiver ≥750m, the receiver (digital information board) cannot display the sensor detection value as well as the warning system. This is due to the attenuation and also noise during the performance measurement of the HC12 module. But the HC12 wireless module is more appropriate was used as a data transmission device from the transmitter to the receiver on the LSM prototype for monitoring landslides compared to other wireless module devices. Thus, monitoring can be done quickly, accurately, and in real time to be able to reduce material losses and casualties.

Key words: HC12 wireless module; transmission distance; data loss
Pengembangan Realtime Monitoring Berbasis Delphi 7 Sebagai Upaya Mitigasi Dini Bencana Tanah Longsor
Authors: NIKA FITRIANI PERO , MADLAZIM MADLAZIM
Published: April 2022

Abstrak

Monitoring secara realtime terhadap parameter tanah longsor merupakan suatu upaya mitigasi dini bencana tanah longsor. Teknologi sensor ketika diintegrasikan dengan teknologi interface visual menawarkan cara yang menjanjikan untuk memantau kondisi zona rawan longsor. Artikel ini menjelaskan sistem realtime monitoring dan warning system tanah longsor yang dilakukan oleh teknologi Delphi sebagai basis pengolah data. Sistem monitoring ini dibangun pada Personal Computer (PC) dengan input data dari sensor LSM menggunakan metode ADDIE. Sistem monitoring ini memberikan warning system dan pantauan perubahan parameter tanah longsor secara grafis dengan memperhitungkan faktor keamanan berdasarkan kontribusi kelembapan tanah dan pergeseran tanah pada kemiringan tertentu terhadap kerawanan longsor. Warning system ditampilkan secara spesifik ketika nilai-nilai yang dibatasi tercapai. Selain itu, sistem monitoring juga memberikan informasi mengenai waktu monitoring secara realtime dan nilai besaran parameter. Uji kelayakan sistem monitoring menunjukan bahwa sistem realtime monitoring akurat dengan akurasi 100%. Sehingga, diharapkan melalui teknologi realtime monitoring ini dapat memberikan peringatan dini tanah longsor yang cepat dan akurat sehingga mengurangi jatuhnya korban jiwa.

Kata kunci: tanah longsor, realtime, monitoring, warning system

Abstract

Realtime monitoring of landslide parameters is an early effort to mitigate landslides. Sensor technology when integrated with visual interface technology offers a promising way to monitor landslide prone zones. The paper describes a landsliding monitoring and warning system that is carried out by Delphi technology as a data processing base. This monitoring system was built on a Personal Computer (PC) with LSM sensor data input using the ADDIE method. This monitoring system provides an early warning system and monitors changes in landslide parameters graphically by taking into account the safety factor based on the constribution of soil humidity and land shifts at a certain slope to landslide vulnerability. An early warning system that are specifically displayed when restricted values are reached. In addition, the monitoring system also provides information on realtime monitoring time and parameter value. Monitoring system feasibility test shows that the realtime monitoring system is accurate with 100% accuracy. Through this realtime monitoring technology it is expected to provide a quick and accurate early warning of landslides so as to reduce the victims.

 

Keywords: landslide, realtime, monitoring, warning system
ANALISIS PELURUHAN GEMPA BUMI SUSULAN DI AMBON TAHUN 2019 DENGAN PENDEKATAN STATISTIK MENGGUNAKAN SOFTWARE PELURUHAN V2.0
Authors: Islamiati Vivi Nur , Supardiono Supardiyono , Perdana Yusuf Hadi , Setyahagi Akbar Rian
Published: April 2022

Telah dilakukan penelitian peluruhan gempa bumi susulan di Ambon,25 September 2019 (Mw 6,6) dengan pendekatan metode statistik menggunakan software Peluruhan v2.0. Kasus ini memiliki produktivitas gempa susulan yang cukup tinggi dibandingkan dengan gempa bumi Banten dan Lombok. Penelitian ini bertujuan untuk menganalisis karakteristik peluruhan gempa susulan menggunakan metode Mogi I, Mogi II, Omori, dan Utsu serta menentukan metode statistik yang lebih mendekati data real  dari BMKG untuk mengetahui waktu peluruhan gempa susulan. Analisis peluruhan gempa susulan tersebut digunakan sebagai upaya mitigasi bencana kepada masyarakat berupa informasi prakiraan gempa susulan akan berakhir. Prosedur yang dilakukan yaitu dengan mengambil data pada laman Repogempa kemudian menganalisisnya dengan pendekatan metode statistik menggunakan software Peluruhan v2.0. Data yang diperoleh dari software kemudian dibandingkan dengan rekaman data real time berakhirnya gempa susulan milik BMKG sehingga diperoleh hasil prakiraan peluruhan gempa susulan paling reliable. Hasil yang didapatkan adalah keempat metode statistik menunjukkan hasil peluruhan gempa bumi susulan yang berbeda akibat perbedaan rentang waktu pada masing-masing persamaan metode statistik. Metode yang menghasilkan analisis waktu peluruhan gempa susulan paling mendekati rekaman data real time berakhirnya gempa susulan BMKG  adalah metode Mogi II  yang menunjukkan bahwa peluruhan gempa susulan berakhir Tanggal 20 April 2020 pada hari ke 208 pasca gempa bumi utama dengan koefisien korelasi sebesar -0,81. Tanda negatif menunjukkan bahwa korelasi antara variabel x (waktu terjadinya gempa) dan y (frekuensi gempa susulan yang terjadi) yang telah dilinierisasi adalah berbanding terbalik. Perbandingan nilai koefisien korelasi antar metode statistik tidak berpengaruh dalam penentuan kesesuaian hasil analisis waktu peluruhan gempa bumi susulan.
ANALISIS CENTROID MOMENT TENSOR (CMT) GEMPA BUMI DI SELAT SUNDA PADA 22 DESEMBER 2018 SEBELUM TSUNAMI BANTEN
Authors: Syafitri Adinda Nur , . Supardiyono
Published: April 2022

ABSTRAK

Penelitian ini dilakukan dengan tujuan untuk menganalisis penyebab gempa di wilayah Selat Sunda dan menganalisis hasil estimasi Centroid Moment tensor (CMT) dengan menggunakan metode inversi waveform tiga komponen yang di implementasikan kedalam software MTINV. Wilayah penelitian yang digunakan adalah wilayah Selat Sunda, hal ini karena wilayah Selat Sunda memiliki tingkat seismik yang tinggi. Data yang digunakan pada penelitian ini yaitu dua data sekunder pada tanggal 22 Desember 2018 dan pada tanggal 13 Februari 2019 yang memiliki magnitudo sama yaitu 5.1 SR, data penelitian diunduh pada laman WEBDC3 at BMKG. Estimasi CMT menghasilkan momen seismik (Mo), magnitudo momen (Mw), lattitude, longitude, kedalaman centroid, dan orientasi bidang sesar yang meliputi strike, dip, dan rake. Estimasi CMT juga memberikan informasi mengenai penyebab terjadinya gempa dengan mengetahui persentase DC, CLVD, dan ISO. Hasil dari kedua data tersebut masing-masing memiliki nilai DC yang lebih dominan daripada nilai CLVD, hal ini menunjukkan bahwa event gempa bumi diwilayah Selat Sunda tersebut dikarenakan oleh aktivitas tektonik.

Kata Kunci : Centroid Moment Tensor, inversi waveform tiga komponen, software MTINV

 

ABSTRACT

The purpose of this study is to analyze the causes of earthquakes in the Sunda Strait  region and analyze the results of the Centroid Moment Tensor (CMT) estimation by using the three component waveform inversion method which was implemented into MTINV software. The study area used is the Sunda Strait region, because the Sunda Strait region has a high seismic level. The data used in this study are two secondary data on  22 Desember 2018 and 13 Februari 2019 which have the same magnitude of 5.1 SR, the research data is downloaded on the WEBDC3 at BMKG website. CMT estimation produces seismic moments (Mo), moment magnitude (Mw),lattitude, longitude, centroid depth, and fault plane orientation which includes strike, dip, rake. CMT estimates also provide information about the causes of earthquakes by knowing the percentage of DC, CLVD, and ISO. The result of the two data each have a  DC value that is more dominan than the CLVD value, this shows that the earthquake event in the Sunda Strait region is caused by tectonic activity.

Keywords: Centroid Moment Tensor, three component waveform inversion, software MTINV
REVIEW : FABRIKASI MEMBRAN BERBASIS NANOFIBER DENGAN METODE ELECTROSPINNING
Authors: Putri Aprillia Nurcahya , Munasir Munasir
Published: April 2022

AbstrakElectrospinning adalah metode yang efektif dalam fabrikasi membran berbasis nanofiber. Membran nanofiber yang dihasilkan dengan menggunakan metode electrospinning lebih unggul dibandingkan dengan membran konvensional seperti inversi fasa, sintering, dan track etching. Keunggulan tersebut diantaranya memiliki sifat mekanik yang baik dan porositas tinggi (≥90%) dibandingkan membran konvensional yang hanya memiliki porositas 10—20%. Membran nanofiber dapat digunakan pada proses pengolahan air untuk mengatasi masalah krisis air. Proses filtrasi membran terdapat empat tahap diantaranya ultrafiltrasi, mikrofiltrasi, nanofiltrasi, dan reverse osmosis. Karakteristik membran nanofiber dalam aplikasi purifikasi air diantaranya mampu menghalangi garam, bakteri, dan logam berat. dari proses pengolahan air menggunakan membran nanofiber diharapkan memperoleh air dengan kontaminan seminimal mungkin.Kata Kunci: Electrospinning, Membran, NanofiberAbstractElectrospinning is an effective method to fabricate nanofiber based membrane. Nanofiber membrane was produced using the electrospinning method is superior compared to conventional membrane such as phase inversion, sintering, and track etching. The advantages include having good mechanical properties and high porosity (≥90%) compared to conventional membrane which only have 10—20% porosity. Nanofiber membrane can be used in water treatment processes to overcome the water crisis problems. There are four processes of membrane filtration including ultrafiltration, microfiltration, nanofiltration, and reverse osmosis. The characteristics of nanofiber membrane that used in water purification include being able to block salts, bacteria, and heavy metals. The results of the water treatment process using nanofiber membrane is expected to obtain water with minimum contaminants.Keywords: Electrospinning, Membrane, Nanofiber
DEPOSISI LAPISAN TIPIS POLIANIALIN DENGAN METODE ELEKTROKIMIA
Authors: Agustiarina Niken , Putri Nugrahani Primary
Published: April 2022

Dalam artikel ini bertujuan menganalisis deposisi lapisan tipis polianilin (PANi) dalam berbagai macam substrat. Misalnya seperti substrat ITO, FTO, Stainless Steel dan QCM. Metode yang dilakukan dalam beberapa penelitian yaitu metode elektrokimia yang terdiri dari metode potensiostatik dan galvanostatik. Berdasarkan hasil analisis dari sintesis PANi, keempat jenis substrat tersebut dapat disintesis lapisan tipis PANi dengan menggunakan Voltametri Siklik (CV). Analisis CV dari lapisan tipis PANi yang diendapkan pada substrat ITO menunjukkan bahwa lapisan tipis tersebut memiliki reversibilitas pewarnaan yang sangat baik dan stabilitas tinggi dalam larutan asam. Pada substrat FTO lapisan tipis tampak relatif halus dengan porositas tinggi karena jaringan kawat nano yang berhubungan. Pada substrat Stainless Steel menunjukkan bahwa terjadi pembentukan radikal anilin pada baja. Sedangkan pada substrat QCM dengan metode potensiostatik menunjukkan bahwa semakin besar potensial yang diukur, maka ketebalan film juga semakin tipis .

Kata Kunci : Sintesis Polianilin, Substrat ITO, FTO, Stainless Steel, QCM, Voltameri Siklik, Elektrokimia, Potensiostatik dan Galvanostatik

 

Abstract

In this article aims to analyze the deposition of polyaniline thin films (PANi) in various substrates. For example like ITO, FTO, Stainless Steel and QCM substrates.The method used in several studies is electrochemical method which consists of potentiostatic and galvanostatic methods. Based on the analysis of PANi synthesis, the four types of substrates can be synthesized PANi thin layer using Cyclic Voltametry (CV). CV analysis of the PANi thin films deposited on the ITO substrate showed that the films had excellent staining reversibility and high stability in acidic solutions. On the FTO thin layer substrate appears relatively smooth with high porosity due to the network of connected nanowires. The stainless steel substrate shows that aniline radical formation occurs in steel. Meanwhile, the QCM substrate using the potentiostatic method showed that the greater the measured potential, then the film thickness is also getting thinner..

Keywords: Polyaniline Synthesis, ITO Substrate, FTO, Stainless Steel, QCM, Cyclic Voltametry, Electrochemical, Potentiostatic and Galvanostatic.
刍议节能减排视角下的大气环境监测工作
Authors: 志刚 黄
Published: April 2022

中国共产党第十九次全国代表大会上提出，要建立一个低碳环保的社会，将节能减排作为中国近几年社会发展的主要任务之一。基于此，论文先分析了大气环境监测工作的现状以及它的作用，随后从三个方面讲述了节能减排视角下大气环境监测的策略分析，以此来供相关人士交流参考。
流域生态补偿标准及生态补偿机制研究
Authors: 娟娟 朱 , 露萍 方 , 维浩 毛 , 煜 曾
Published: April 2022

在当下的社会环境中，流域生态问题已然成为国家必须重视的问题。流域生态补偿机制是中国落实环保工作的重要保障，对流域生态补偿机制进行分析探讨，精准确定流域生态补偿标准是非常有必要的，也是促进人与自然和谐相处的重要举措。
环境监测在生态环境保护中的应用分析
Authors: 敏苗 徐
Published: April 2022

在我们的生活和发展中，生态环境是维持社会基本形态非常重要的一部分，对社会的稳定性以及人类文明的传承具有非常重要的作用，所以说相关负责人员一定要重视生态环境保护问题。在未来的发展中，生态环境问题会在人类发展中起到决定性作用，通过环境监测可以帮助人们实时了解生态环境的具体情况，调节生态环境。因此，相关负责人员对于生态环境监测技术也要提高重视程度，明确在高科技背景下该如何平衡经济发展和环境保护之间的关系，利用环境监测对环境生态的保护作用，减少环境中污染物的含量。
生态环境检测和环保技术及其应用探究
Authors: 广伟 柏 , 彦军 张
Published: April 2022

随着时间的飞速流逝，人们愈发重视生态环保工作，追求绿色健康的生活目标。生态环境检测和环保技术是较为重要的保护环境方式之一，但是它的发展也存在很多弊端，这些弊端需要得到及时的解决。
议排污许可管理制度在环境管理中发挥的作用及策略
Authors: 震 张
Published: April 2022

排污许可管理制度，是一种专门针对企业排污行为的管理制度。其创立的目的就是对企业的生产环境进行管理，加强企业排污行为的限制，为中国环境污染问题的改善提供保障。论文重点针对排污许可管理制度在环境管理中发挥的作用进行了详细的分析，并提出了合理应用排污许可管理制度的策略，以供参考。
水土保持在治理生态环境中的价值及具体应用策略思考
Authors: 婷 姚 , 海波 马 , 伟 王
Published: April 2022

生态环境的安全健康是可持续发展的前提，做好生态环境治理与保护，对人们的生活生产具有重要意义。水土保持是生态环境工程中的一项重要工作，做好水土保持工作对改善生态环境，优化生态系统具有重要作用。论文运用文献法、调查法对水土保持在治理生态环境中的价值进行分析，并就水土保持应用策略展开探究，以供借鉴与参考。
综合能源服务的市场发展前景思考
Authors: 俊哲 王
Published: April 2022

现如今，随着时代的进步，中国设置能源变革的新目标，将建设综合能源服务作为重要任务，大力优化整体的现代能源经济体系，以此使能源服务在满足市场发展需求的前提下，达到优质的发展效果。对此，论文着重分析了在能源变革新时代的背景之下，综合能源服务需要在政策、技术、市场这三个方面做出的完善以及未来的发展方向。
中国苏州市危险废物污染现状研究分析
Authors: 玲 方
Published: April 2022

论文通过整理2007—2017年苏州市危险废物的年度申报登记数据，对苏州市近十年危险废物的产生情况进行了归纳，分析了苏州市危险废物的年产量变化趋势、主要类别及各类占比等方面的内容。结果表明，苏州市工业危险废物产量和产生危险废物的企业数量近十年总体均呈现明显的上升趋势。现阶段电子行业、化工行业、光伏科技以及环保能源行业是苏州市近十年生产工业危险废物的主要行业类型。
城市污水处理工程技术分析
Authors: 中传 文 , 超 王
Published: April 2022

城市整体卫生环境发展是否好坏都和污水处理工作密不可分。水资源是有限的，每个城市发展进度各不相同，保护水资源为人们提供舒适的生活环境非常重要，合理处理城市污水迫在眉睫，论文主要分析城市污水处理工程。
中国海洋渔业生态环境污染现状及治理对策研究
Authors: 海建 张
Published: April 2022

中国渔业生态环境健康发展对渔业的可持续发展有重要影响。论文首先从海洋环境质量、海洋生态状况等方面对中国海洋渔业生态环境污染现状进行描述。之后，再从非生物因素、生物因素和人为因素三个方面对影响中国海洋渔业生态环境的因素进行分析。最后提出相对应的对策建议。
建筑工程管理中的成本控制策略分析
Authors: 亿敏 赵
Published: April 2022

现代社会的进步使得建筑企业获得了飞速发展，建筑工程施工的规模和数量都在不断地扩张。在建筑工程施工的过程中需要投入大量的资金，所以为了更好地保证企业自身的经济效益，建筑企业必须做好相关的成本控制工作，对施工过程的各个环节进行科学的管理，从而更好地保证施工单位的经济效益。论文通过对建筑工程施工管理的原则及存在的意义进行了详细的分析，并有针对性地提出了降低建筑工程施工成本的管理措施。
粉煤灰自密实混凝土基本工作性能试验研究
Authors: 建国 赵
Published: April 2022

论文对单掺粉煤灰自密实混凝土进行了坍落扩展度试验、T500试验、J环扩展度试验和GTM筛稳定性试验。结果表明：随着粉煤灰掺量增大，粉煤灰自密实混凝土坍落扩展度和J环扩展度呈先增后减的趋势，表明粉煤灰对自密实混凝土的流动性具有改善作用；粉煤灰掺量为20%时，粉煤灰自密实混凝土坍落扩展度和J环扩展度达到峰值587mm和571mm；T500随着粉煤灰掺量增大呈先减后增的趋势，表明粉煤灰的掺入可以提高自密实混凝土对多筋结构的适用性；SR结果表明粉煤灰的掺入可以改善自密实混凝土的抗离析性。
市政钻孔灌注桩施工的工艺重点
Authors: 志国 张
Published: April 2022

城市化进程不断加快，促使市政工程有着日益增加的建设项目。在建设市政工程的过程中，钻孔灌注桩施工工艺不仅可以将基础工程的性能有效提高，还能有效延长市政工程实际使用寿命。论文对钻孔灌注桩施工的应用价值进行分析，并进一步探讨了市政钻孔灌注桩施工的工艺重点。
水利工程施工管理的现状及对策探讨
Authors: 懋 李
Published: April 2022

在当前社会快速进步与发展过程中，能源危机也变得越发严重，在诸多能源当中，水利资源的占比非常高，尤其是在过去经济发展过程中所产生的诸多水资源污染问题，致使水资源危机也变得越发严重，所以缓解能源压力的主要内容之一，就是对于水利资源进行了充分利用。在现阶段水利工程项目施工过程中，施工管理工作要进行全面提高，需要对水利资源进行更好的利用和管理。论文中对水利工程施工管理工作现状及相关对策进行探讨。
历史文化街区保护视角下的沙市洋码头城市更新措施
Authors: 华梅 邓 , 峻 吴
Published: April 2022

在城市由增量发展转向存量发展的背景下，城市更新成为当下城市建设的主要方式。沙市洋码头作为重要的商埠，它见证了沙市3000多年的发展与变迁。论文调研了洋码头现状，分析了该历史街区在总体布局、建筑保护与更新、基地环境、道路交通等各个方面存在的问题，提出了“修旧如旧，变锈为秀”的保护理念，用修复和复建的方式对洋码头历史街区进行原真性保护。通过修复和保护老旧工业遗产建筑再现码头风貌，以期为类似的历史街区更新提供有价值的参考。
探讨交通工程标志标线的设计和施工
Authors: 向朋 李
Published: April 2022

交通工程标志标线的设计与施工是实现交通安全的前提，一个科学、严谨的交通工程标志标线的使用能够显著地减少交通事故的发生。除此之外，交通工程标志标线的应用也能够解决道路交通流量控制问题，保证道路的畅通，提高道路的使用率。论文基于交通工程标志标线的设计与施工问题做出一系列的探讨，并给予一些能够合理解决标志标线的设计与施工问题的建议。
道路防风沙设施专利技术综述
Authors: 英敏 胡 , 晓飞 隋
Published: April 2022

论文对中国和其他国家的道路防风沙设施（IPC分类号E01F7）2018年以前的专利进行了统计分析。结果表明，中国和日本是最重要的专利申请国。在技术分支上，线网型防风沙设施和孔板型防风沙设施是目前申请量最多的两大分支，其发展相比其他技术主题也更具连续性。进一步通过对不同时期的重点专利进行分析，梳理了中国和日本不同类型防风沙设施的专利技术发展路线。
高速公路沥青路面养护对策选择研究
Authors: 宁波 谢
Published: April 2022

高速公路运输已经成为中国最重要的交通运输方式之一，由于高速公路的运输量在不断增加，车辆高速行驶和超载问题导致高速公路沥青路面出现各种各样的问题，必须加强高速公路沥青路面养护，确保行车和运输安全。论文对高速公路沥青路面存在的问题进行了简单分析，探究了高速公路沥青路面养护的方案和措施，以期为高速公路沥青路面养护工作开展提供有效参考。
城轨牵引供电系统调度技术探析
Authors: 志彪 穆
Published: April 2022

随着社会经济的高速发展以及城市化建设的持续深入，社会已经进入了全新的发展阶段，这也为城市内部交通系统的发展起到了良好的促进作用，而为了有效解决城市内部所产生的交通拥堵等问题，就应当对城轨牵引供电系统的调度技术展开深入探究，通过城轨牵引供电系统调度技术的应用来避免其中产生浪费情况，保证调度技术可以有效满足供电系统的基本需求。因此，论文首先对城市轨道交通以及牵引变电站混合储能进行分析。在此基础上，提出城轨牵引供电系统调度技术的具体措施。
滇中彝族夯土木结构民居现状研究
Authors: 必辉 戴 , 丽 韩 , 静 李 , 鑫 王 , 江山 潘
Published: April 2022

木构架-夯土墙结构房屋是滇中彝族居民最常采用的建筑形式。论文在总结此类房屋建筑结构特点和民族特色的基础上，结合国家乡村振兴和乡村建设行动的时代背景，从农房抗震能力提升和传统材料研究开发等方面，阐述滇中地区彝族夯土木结构民居现状。
高寒地区公路施工技术要点分析——以中国木里县乔瓦镇 至园坝子改建工程为例
Authors: 杰 秦
Published: April 2022

为探究高寒地带公路施工的技术要点，将以木里县乔瓦镇至园坝子改建工程为例，重点对该工程下混凝土在高寒地带的温度控制技术进行探究。通过高寒地带混凝土配置全过程分析的方式分析混凝土施工技术要点，重点对该工程下混凝土配置工程的温度控制进行探究。希望通过对高寒地带施工混凝土的配置分析能够为相关人员或单位提供帮助。
国际工程投标报价原则和策略探讨
Authors: 元荷 朱
Published: April 2022

随着中国经济的腾飞，中国建筑市场已经不能满足中国建筑企业的进一步发展，更需要开拓和扩大海外市场，中国与其他国家市场相互结合，相互发展。作为一个有经验的、成熟的国际承包商，制定好合适的投标报价原则和策略是竞标成功的基础，如果缺乏精确的投标报价策略和原则，中标概率会非常低，即使中标，项目质量也不高。正确的投标报价策略和原则，将为整个投标工作提供指导方针。
目前对土木建筑施工的问题分析与对策
Authors: 超 刘
Published: April 2022

论文对现阶段下土木建筑施工特点进行阐述，并对当前存在的问题进行细致的分析，提出对应的解决对策，旨在更好地规范中国土木建筑工程整体施工流程，提升施工水平，保障施工质量，降低施工现场出现各类安全事故的概率。
高层建筑施工现场消防安全管理措施分析
Authors: 爽 董
Published: April 2022

在社会经济飞速发展的当下，城市化进程也随之加快，高层建筑层出不穷。与此同时，在高层建筑施工建设过程中难免会出现大量建材堆积的情况，且具有易燃特点，进而为安全事故埋下隐患。为降低火灾危害的发生概率，就必须针对高层建筑施工现场消防安全采取有效的管控举措，才能达到保障整体施工进度及确保项目质量的目的，最终建设出符合时代特征的高层建筑。
浅谈总承包项目的现状及未来发展趋势
Authors: 靖 史
Published: April 2022

工程总承包是国际工程管理领域中的全新模式之一，其能够全面负责工程的质量安全以及工期、造价等。但是与国际化工程总承包相比，论文的总承包开放性相对不足，并且服务水平有待提高。因此，需要对总承包进行全面的发展和提升。论文对总承包项目的现状以及发展趋势全面探讨。此次研究对总承包项目模式的重要性有效明确，从而为其健康发展提供基础条件。
新时期下 BIM 技术在土木工程安全管理中的应用
Authors: 一涵 张
Published: April 2022

伴随着中国现代化进程的持续推进，中国土木工程项目数量也在持续增加，持续推动着中国土木工程的发展，但却由于管理、人工、材料质量等各方面的原因，导致中国土木工程施工中发生了越来越多的安全事件，对施工人员的生命安全造成了巨大威胁。论文则主要对BIM技术做出阐述，对传统安全管理中的隐患做出分析，并以BIM技术在其中的实际应用进行探究，以期为相关学者的研究提供参考。
关于地铁轨道板精调倾斜设站研究与信息化平台管理方法
Authors: 剑平 柴
Published: April 2022

中国轨道交通不断发展，高铁调板技术也日益成熟稳定，将高铁调板技术引入地铁，极大的提高了地铁施工的进度和质量。地铁轨道板精调倾斜设站打破了传统的设站方式，也提高了轨道板精调的效率；信息化管理平台为管控施工质量和进度提供了保障，也为后期维护提供了数据基础。
Students’ Acquisition of Science Process Skills in Chemistry through Computer Simulations and Animations in Secondary Schools in Tanzania
Authors: Beichumila Flavia , Bahati Bernard , Kafanabo Eugenia
Published: April 2022

. Scientists currently advocate the use of integrated science process skills to perform scientific inquiries in the natural world. In Tanzanian schools, however, the situation leaves a lot to be desired as we consider the poor acquisition of science process skills in the country. This article is an attempt to address the impact of computer simulations and animation in the acquisition of scientific skills. We compare the impact of computer simulations and animations to conventional materials on students' acquisition of integrated science process skills in teaching and learning chemistry. We use a mixed method approach in data collection and quasi-experimental research design coupled with the qualitative data collection process, i.e. focus group discussion. The study involved a total of 320 students. The findings revealed that the treatment group scored better (pre-test, mean = 42.26; standard deviation = 12.16, post-test, mean = 65.79; SD = 13.45) after they were exposed to computer simulations and animations than their counterparts in the control groups (pre-test, mean = 41.59; SD, 12.73, post-test, mean = 48.03; SD = 11.72). Furthermore, a statistically significant difference (p = 0.000, α = 0.05) between the control and treatment groups was found using an independent sample t-test on instructional materials. Thematic analysis of data from students focus group discussion indicated that simulations drew their attention to specifics and made the subject easier to grasp than conventional materials. Therefore, the current study proposes that teachers employ computer simulations and animations to support students’ science process skills at secondary school level.
Fostering Scientific Creativity in the Classroom: The Concept of Flex-Based Learning
Authors: Haim Kurt , Aschauer Wolfgang
Published: April 2022

To sustainably shape tomorrow’s world, young people must be prepared to develop successful solution strategies for problems that are as yet unknown. Therefore, it must be a core task of schools to train students in their problem-solving skills. The natural science subjects could become established to address this challenge if scientific creativity is explicitly promoted in the classroom. Therefore, the goal of a team of researchers and teachers was to develop a support program for scientific creativity. The developed program is summarized under the term Flex-Based Learning and includes a wide range of interventions linked to the most significant aspects of scientific creativity. The interventions have been developed and investigated since 2010 within a long-term design-based research project. The empirical inquiry, both in laboratory and real classroom settings, in which a total of 104 teachers and 3,516 Austrian secondary school students (aged 10–18 years) participated, indicates that Flex-Based Learning is efficient at the student level and is considered by teachers to be practical. In addition, the research also provided deeper insights into the conditions for fostering scientific creativity and the relationship between theory and practice.
ESCOLA DE REFORMA: O NASCIMENTO DO CÁRCERE FEMININO NO BRASIL
Authors: Karpowicz Débora
Published: April 2022

O objetivo deste trabalho será apresentar o nascimento da prisão feminina no Brasil através do estudo de caso da Escola de Reforma, de modo a verificar as condicionantes que contribuíram para o surgimento desta instituição enquanto modelo prisional administrado pela congregação de freiras do Bom Pastor. Para tanto, as fontes que respaldam esta pesquisa foram múltiplas. A metodologia utilizada foi a análise documental através da pesquisa qualitativa de análise de conteúdo e discurso. O trabalho irá analisar o nascimento da prisão feminina a partir dos seus opressores morais – igreja, estado e sociedade –, que buscaram traçar um perfil de comportamento para as mulheres daquele contexto na tentativa de excluir da sociedade os comportamentos desviantes. Conclui-se que desde o nascimento da primeira prisão feminina no Brasil, estado, sociedade e igreja foram agentes que moldaram comportamentos no intuito de determinar papeis às mulheres, travestidos com a ideia de fazer o bem através da “ressocialização e preservação da moral”.