scholarly journals Students and the SEM: The First Encounter

2007 ◽  
Vol 15 (3) ◽  
pp. 46-49
Author(s):  
V.M. Dusevich ◽  
J.D. Eick
Keyword(s):  
Electron Microscope ◽  
Undergraduate Students ◽  
Easy Task ◽  
Amount Of Information ◽  
Naked Eye ◽  
Long Time ◽  
Sem Imaging ◽  
The Right

The first demonstration of an SEM to students is a rewarding experience. Whether it is the beginning of a course in instrumentation or just an illustration of the abilities of an SEM for “prospective users”, whether students have engineering or biological backgrounds, both graduate and undergraduate students are thrilled to see a “real electron microscope”. We thus have an easy task of only having to choose the right specimens to fulfill their anticipation and to present the right amount of information that will be easily absorbed and remembered for a long time.Insects are the prima donnas of SEM imaging. We usually start our demonstrations with insects (Fig.1). Their multifaceted eyes, terrifying (at proper magnifications) mouths, exoskeletons, jointed limbs, and segmented bodies look so astonishingly alien under the microscope, so remarkably different from their familiar (to the naked eye) appearance, that insects unfailingly get the students thrilled and prepare them to absorb information.

A Device for Magnification Measurement

1972 ◽  
Vol 30 ◽  
pp. 622-623
Author(s):  
J.A. Eades ◽  
A. van Dun
Keyword(s):  
Electron Microscope ◽  
Small Displacement ◽  
Private Communication ◽  
Piezoelectric Crystal ◽  
Double Exposure ◽  
Standard Methods ◽  
Elegant Method ◽  
The Right ◽  
Piezo Electric

The measurement of magnification in the electron microscope is always troublesome especially when a goniometer stage is in use, since there can be wide variations from calibrated values. One elegant method (L.M.Brown, private communication) of avoiding the difficulties of standard methods would be to fit a device which displaces the specimen a small but known distance and recording the displacement by a double exposure. Such a device would obviate the need for changing the specimen and guarantee that the magnification was measured under precisely the conditions used.Such a small displacement could be produced by any suitable transducer mounted in one of the specimen translation mechanisms. In the present case a piezoelectric crystal was used. Modern synthetic piezo electric ceramics readily give reproducible displacements in the right range for quite modest voltages (for example: Joyce and Wilson, 1969).

Residual Gas Reactions in the Electron Microscope: I. Qualitative Observations on the Water Gas Reaction

1968 ◽  
Vol 26 ◽  
pp. 292-293
Author(s):  
Richard E. Hartman ◽  
Roberta S. Hartman ◽  
Peter L. Ramos
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Gas Phase ◽  
Absolute Temperature ◽  
Residual Gas ◽  
Gas Reactions ◽  
Image Position ◽  
The Right ◽  
Water Gas ◽  
Thinning Rate

The action of water and the electron beam on organic specimens in the electron microscope results in the removal of oxidizable material (primarily hydrogen and carbon) by reactions similar to the water gas reaction .which has the form:The energy required to force the reaction to the right is supplied by the interaction of the electron beam with the specimen.The mass of water striking the specimen is given by:where u = gH2O/cm2 sec, PH2O = partial pressure of water in Torr, & T = absolute temperature of the gas phase. If it is assumed that mass is removed from the specimen by a reaction approximated by (1) and that the specimen is uniformly thinned by the reaction, then the thinning rate in A/ min iswhere x = thickness of the specimen in A, t = time in minutes, & E = efficiency (the fraction of the water striking the specimen which reacts with it).

200kv superconducting cryo electron microscope

1987 ◽  
Vol 45 ◽  
pp. 642-643
Author(s):  
M. Iwatsuki ◽  
Y. Kokubo ◽  
Y. Harada ◽  
J. Lehman
Keyword(s):  
Electron Microscope ◽  
Structure Analysis ◽  
Organic Materials ◽  
Strong Interactions ◽  
Specimen Preparation ◽  
Great Effort ◽  
Electron Microscopic ◽  
Crystal Fields ◽  
Special Skill ◽  
Long Time

In recent years, the electron microscope has been significantly improved in resolution and we can obtain routinely atomic-level high resolution images without any special skill. With this improvement, the structure analysis of organic materials has become one of the interesting targets in the biological and polymer crystal fields.Up to now, X-ray structure analysis has been mainly used for such materials. With this method, however, great effort and a long time are required for specimen preparation because of the need for larger crystals. This method can analyze average crystal structure but is insufficient for interpreting it on the atomic or molecular level. The electron microscopic method for organic materials has not only the advantage of specimen preparation but also the capability of providing various information from extremely small specimen regions, using strong interactions between electrons and the substance. On the other hand, however, this strong interaction has a big disadvantage in high radiation damage.

Rancang Bangun Sistem Penerimaan Dan Mutasi Barang Pada PDAM Tirta Kerta Raharja

Sensi Journal ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 236-246
Author(s):  
Ilamsyah Ilamsyah ◽  
Yulianto Yulianto ◽  
Tri Vita Febriani
Keyword(s):  
System Analysis ◽  
Object Oriented ◽  
Analysis Method ◽  
Web Based ◽  
Visual Modeling ◽  
Long Time ◽  
The Right ◽  
And Control ◽  
Web Based System ◽  
The Web

The right and appropriate system of receiving and transferring goods is needed by the company. In the process of receiving and transferring goods from the central warehouse to the branch warehouse at PDAM Tirta Kerta Raharja, Tangerang Regency, which is currently done manually is still ineffective and inaccurate because the Head of Subdivision uses receipt documents, namely PPBP and mutation of goods, namely MPPW in the form of paper as a submission media. The Head of Subdivision enters the data of receipt and mutation of goods manually and requires a relatively long time because at the time of demand for the transfer of goods the Head of Subdivision must check the inventory of goods in the central warehouse first. Therefore, it is necessary to hold a design of information systems for the receipt and transfer of goods from the central warehouse to a web-based branch warehouse that is already database so that it is more effective, efficient and accurate. With the web-based system of receiving and transferring goods that are already datatabed, it can facilitate the Head of Subdivision in inputing data on the receipt and transfer of goods and control of stock inventory so that the Sub Head of Subdivision can do it periodically to make it more effective, efficient and accurate. The method of data collection is done by observing, interviewing and studying literature from various previous studies, while the system analysis method uses the Waterfall method which aims to solve a problem and uses design methods with visual modeling that is object oriented with UML while programming using PHP and MySQL as a database.

Circuit Tracing on Integrated Circuit Using FIB Passive Voltage Contrast Effect

2015 ◽  
Author(s):  
Alexander Sorkin ◽  
Chris Pawlowicz ◽  
Alex Krechmer ◽  
Michael W. Phaneuf
Keyword(s):  
Electron Microscope ◽  
Integrated Circuits ◽  
Integrated Circuit ◽  
Metal Layer ◽  
Database System ◽  
Conventional Procedure ◽  
Sem Imaging ◽  
Voltage Contrast ◽  
Scanning Electron ◽  
Graphic Database

Abstract Competitive circuit analysis of Integrated Circuits (ICs) is one of the most challenging types of analysis. It involves multiple complex IC die de-processing/de-layering steps while keeping precise planarity from metal layer to metal layer. Each step is followed by Scanning Electron Microscope (SEM) imaging together with mosaicking that subsequently passes through an image recognition and Graphic Database System (GDS) conversion process. This conventional procedure is quite time and resource consuming. The current paper discusses and demonstrates a new inventive methodology of circuit tracing on an IC using known FIB Passive Voltage Contrast (PVC) effects [1]. This technique provides significant savings in time and resources.

STRATEGI PENGEMBANGAN BUDAYA KULINER TRADISIONAL PADA BAKPIA DAN WINGKO BABAT XYZ

2021 ◽  
Vol 10 (1) ◽  
pp. 194
Author(s):  
Maria Maria
Keyword(s):  
Research Method ◽  
Matrix Analysis ◽  
Literature Study ◽  
Diversification Strategy ◽  
Marketing Process ◽  
Long Time ◽  
The Right ◽  
Culinary Culture ◽  
Depth Interviews ◽  
Research Analysis

This research examines the development of traditional culinary culture,  Bakpia and Wingko Babat XYZ with the aim of preserving the local culinary heritage located in Bantul. Bakpia and Wingko Babat XYZ  is a special traditional business place that sells traditional Yogyakarta food in the Bantul area which still uses traditional methods. This business has been around for a long time since 1997. Lack of the right strategy is the cause when local and foreign visitors do not know much information about the culinary business of Bakpia and Wingko Babat XYZ. Based on this, this study aims to identify and analyze the marketing process carried out by Bakpia and Wingko Babat XYZ, to determine the potential of traditional culinary culture and to explore strategy formulations in Bakpia and Wingko Babat XYZ. The research method in this study is a qualitative research method, by conducting direct and in-depth interviews with key persons, observation, and literature study. The qualitative method used is descriptive qualitative which will describe how the right strategy is based on the results of the analysis. The interview data were analyzed by several stages, namely the SWOT stage in the internal and external environment, the weight and ranking calculation stage, the IFE-EFE and IE matrix analysis stage, and the conclusion stage. In the research analysis, the IFE and EFE matrix values were obtained, where the IFE value was 2.774 and the EFE value was 2.842. This condition shows that Bakpia and Wingko Babat XYZ  is in the V quadrant position, which means Hold and Maintain, in this position the right strategy is market penetration and product development, and in the SWOT quadrant in quadrant II Cobination supports the Diversification strategy, this is requires making alternative strategies that can be used to increase existing strengths so that they can overcome threats.Keywords: culinary culture, SWOT, IE.AbstrakPenelitian ini meneliti tentang  budaya kuliner tradisional yaitu Bakpia dan Wingko Babat XYZ dengan tujuan untuk menjaga warisan budaya kuliner lokal yang terletak di Bantul. Bakpia dan Wingko Babat XYZ merupakan tempat usaha tradisional khusus yang menjualkan makanan tradisional khas Yogyakarta di daerah bantul yang masih menggunakan cara-cara tradisional. Usaha ini sudah lama berdiri sejak 1997. Kurangnya strategi yang tepat menjadi penyebab ketika pengunjung lokal maupun mancanegara tidak mengetahui banyak informasi mengenai usaha kuliner Bakpia dan Wingko Babat XYZ. Berdasarkan hal tersebut, penelitian ini bertujuan untuk mengidentifikasi dan menganalisa proses pemasaran yang dilakukan Bakpia dan Wingko Babat XYZ, untuk mengetahui potensi budaya kuliner tradisional dan mengeksplorasi formulasi strategi di Bakpia dan Wingko Babat XYZ. Metode  penelitian pada penelitian ini adalah metode penelitian kualitatif, dimana dengan melakukan wawancara kepada key person secara langsung dan mendalam, observasi, dan  studi pustaka. Metode kualitatif  yang  digunakan yaitu kualitatif deskriptif yang akan mendeskripsikan bagaimana strategi yang tepat berdasarkan hasil analisis. Data  wawancara dianalisis dengan beberapa tahap-tahapan yaitu tahap SWOT pada lingkungan internal dan eksternal, tahap perhitungan bobot dan peringkat, dan tahap analisis matriks IFE-EFE dan IE, serta tahap kesimpulan. Pada analisis penelitian diperoleh nilai matriks IFE dan EFE, dimana nilai IFE sebesar 2,774 dan nilai EFE sebesar 2,842. Kondisi ini menunjukkan bahwa Bakpia dan Wingko Babat XYZ  berada pada posisi kuadran V yaitu berarti Hold and Maintain, pada posisi ini  strategi yang  tepat adalah penetrasi pasar dan pengembangan produk, serta pada kuadran SWOT  pada kuadran II Cobination mendukung stategi Diversifikasi, hal ini mengharuskan membuat alternative strategi yang dapat digunakan untuk meningkatkan Kekuatan yang ada sehingga dapat mengatasi ancaman.Kata Kunci: budaya kuliner, SWOT, IE. Author:Maria : Institut Seni Indonesia Yogyakarta References: Agustim, W., & Nurhidayat, M. (2020). Analisis Matrik IE pada UMKM Berbasis Produk Pertanian Kelompok Wanita Pelaku Usaha Tanaman Hias di Desa Sidomulyo Kota Batu. Referensi: Jurnal Ilmu Manajemen dan Akuntansi, 8(1), 73-78. https://doi.org/10.33366/ref.v8i1.1760.David, Fred R. 2016, Manajemen Strategis, Edisi 15. Jakarta: Salemba Empat.Evelyn, E. (2018). Analisis Manajemen Strategi Bersaing Dengan Matriks Ie, Matriks Swot Dan Matriks Qspm Pada Pt. Xyz. Jurnal Manajemen Bisnis dan Kewirausahaan, 2(4), 99-105. http://dx.doi.org/10.24912/jmbk.v2i4.4869.Rangkuti, Freddy. (2015). Analisis SWOT : Teknik Membedah Kasus Bisnis (Cara Perhitungan Bobot, Rating dan OCAI). Jakarta: PT Gramedia Pustaka Utama.Retnawati, L. (2018). Perencanaan Strategis Si/Ti dengan Metode Analisa Swot dan BSC untuk Meningkatkan Daya Saing di Universitas XYZ. JISKA (Jurnal Informatika Sunan Kalijaga), 2(3), 135-142. https://doi.org/10.14421/jiska.2018.23-02.Sugiyono. (2016). Metode Penelitian: Kuantitatif, Kualitatif dan R&D. Bandung: Alfabeta.Tyas, S. K., & Chriswahyudi, C. (2017). Perencanaan Strategi Pemasaran dengan Pendekatan Matrik IE, SWOT dan AHP untuk Mendapatkan Alternatif Strategi Prioritas. Prosiding Semnastek. https://jurnal.umj.ac.id/index.php/semnastek/article/view/1989/1632.

Demonstration of the relationship between MSD and online learning during the COVID-19 pandemic

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kochu Therisa Karingada ◽  
Michael Sony
Keyword(s):  
Online Learning ◽  
Undergraduate Students ◽  
Online Survey ◽  
Cross Sectional Study ◽  
The Body ◽  
Body Parts ◽  
Cross Sectional ◽  
Content Type ◽  
The Right ◽  
Almost All

PurposeThe COVID-19 pandemic lockdown has caught many educational institutions by surprise and warranted an abrupt migration from offline to online learning. This has resulted in an education change, without any time for due consideration, as regards its impact on musculoskeletal disorders (MSD) on students. The purpose of this study is to investigate MSD related to online learning during the COVID-19 pandemic lockdown.Design/methodology/approachA cross-sectional study was conducted on undergraduate students in India. In total, 261 students participated in this online survey.FindingsThe study finds that around 80% of students have reported some symptom in the head, neck and eyes since they started online learning. In total, 58% have reported MSD symptom in the right shoulder and 56% in the right hand fingers. Besides, more than 40 % of students experienced some MSD symptoms, in almost all the body parts studied, due to online learning. Correlation analysis is conducted between time spent on online learning per day and MSD symptoms.Originality/valueThis is the first study conducted on MSD and online learning during COVID-19 pandemic.

The Role of Spices with reference Novel Coronavirus Covid 19

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1655-1661
Author(s):  
Roshna Sukheoji Bhutada ◽  
Kritika Umate
Keyword(s):  
Viral Infections ◽  
The Body ◽  
Common People ◽  
Supplementary Food ◽  
Long Time ◽  
Novel Coronavirus ◽  
The Right ◽  
Common Spices ◽  
Physiological Reactions

The need of the day is a brisk lift to the resistant framework to keep it fit, battling today pandemic infections, for example, Covid — 19. One should get the right amount of nutrients from the diet, supplementation regimen to boost the immune system. These spices are always there to make tasty food as well as to protect the body from infectious diseases by building the immunity strong Ayurveda approaches to develop physiological reactions to facilitate immunity. Planning of diet is most important to boost immunity. As per many types of research to provide supplementary food which contains Zinc, Vitamin C, Vitamin D and immunity boosting food such as dealing with plenty of spices for a very long time. These spices include some rare to very common spices which we can found near us. The concern is that these viral infections are very prone to attack weak immunity and take the chance to affect the country to the globe. So the very common spices available will be always helpful to get through this Regular use of a few spices in the very simple form proves its importance as a medicine. In this article a review of spices is done which we are available near us, we are using it in our daily life and we are getting the benefit of these which a common people might not be fully aware of about role of immunity building of the body. 

X-Ray Mapping with Energy-Dispersive and Wavelength-Dispersive X-Ray Spectrometry in the Scanning Electron Microscope: a Tutorial

1999 ◽  
Vol 5 (S2) ◽  
pp. 518-519
Author(s):  
Dale E. Newbury ◽  
David S. Bright
Keyword(s):  
Image Processing ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Recording System ◽  
X Ray ◽  
On Line ◽  
Current Electron ◽  
Sem Imaging ◽  
Display Systems ◽  
Scanning Electron

X-ray mapping is one of the most popular modes for displaying information obtained with x-ray spectrometry performed in the scanning electron microscope. This popularity arises from the ready accessibility and apparent simplicity of information presented in a pictorial fashion, especially when used in conjunction with other SEM imaging modes, such as backscattered, secondary, and specimen current electron images. Further, the rise of powerful, inexpensive computer systems capable of image processing and display has given the analyst a dedicated, on-line tool with the capacity and flexibility needed for problem solving. Figure 1 shows a typical example of mapping. Although the interpretation of x-ray images obtained with a modern digital control and recording system would seem to be straightforward and relatively trivial, there are significant pitfalls and limitations that can easily fool the unwary. In Figure 1, within an individual x-ray map, the observer can reasonably judge where the concentration is lower or higher, at least for a group of contiguous pixels. Can such judgments be made among a set of maps of the same region for different elements, or even for the same element from different regions of the same specimen? With current x-ray processing and display systems, the answers are generally no. In fact, problems that can influence interpretation can arise at each stage of x-ray generation/emission, x-ray spectral collection, processing, and display.

scholarly journals Leadership Style, Ethics, and Strategy in Indonesian Navy - Case Study: Leadership of Rear Admiral Agung Prasetiawan, M.AP, (2017-Present) Commander of Kolinlamil

2017 ◽  
Vol 7 (4) ◽  
pp. 121
Author(s):  
Faurna Lusiani Pakpahan ◽  
Hady Efendy
Keyword(s):  
Leadership Style ◽  
Main Task ◽  
Organizational Goals ◽  
Important Thing ◽  
Long Time ◽  
Organization Leadership ◽  
Military Institution ◽  
The Right

In an organization, leadership in an organization exists from a long time ago to the present, and leadership is a very important thing. A leader must use the right style to lead the organization he leads. The leader must also have good ethics in leading the organization and use appropriate strategies, so that organizational goals can be achieved. The purpose of this paper is to find out how much influence of leadership style, ethics and strategy what is used by an organization leader in a military institution that is Navy at Tanjung Priok Command Military Traffic (Kolinlamil) Jakarta, to be able to achieve organizational goals under leadership of Rear Admiral Agung Prasetiawan, M.AP. Kolinlamil is the main command in coaching and operations, which in the field of guidance of Kolinlamil is directly under the head a navy staff (Kasal), while the field of operations is directly under the Commander of the Indonesian Military (TNI). Kolinlamil is a military institution whose main task is to shift military or civilian forces from one area to another based on existing rules and orders.

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