Public relations strategy in rebuilding Airline Company reputation following aircraft crash

The issue discussed in this study is rebuilding Lion Air's reputation tarnished by aircraft accidents. This study aims to identify public relations strategies pursued by case study of Lion Air, Indonesia, to rebuild its reputation following air accidents it has been involved. The research method employed in this study is the qualitative method using single case studies on Lion Air Company. Data is collected through observation, interviews, and a review of news articles in the media. The output of the research takes the form of corporate strategies that are aimed at rebuilding the company's reputation using stakeholder approaches, including (1) alignment of internal perceptions within the organization; (2) "communication holding,"; (3) centralization of information issuance; (4) appointment of partners as "communicators"; (5) use of humanitarian approaches. The conclusion drawn from the research is that public relations strategies through a stakeholder approach would provide a basis for Lion Air's management to exercise control over information that brings positive value. The result also shapes stakeholders' perceptions to align with the company's expectation in restoring its reputation

Characteristics of butt welding imperfections joint using co-occurrence matrix

1164-1169The goal of this paper is to study the characteristics of the butt joint imperfections with different types of joint shapes (curve, straight and tooth saw work piece) according to their class categories (good welds, excess welds, insufficient welds and no welds). The work piece is placed in a center position on the workbench. The distance between camera and workpiece is set as 300 mm during welding imperfections process and the entire work piece image is taken from the same distance to maintain the accuracy. The input feature vector is determined by feature co-occurrence matrix consisting of energy, correlation, homogeneity and contrast both no scaled and scaled by 0.5. Results show that no welds class categories exhibit higher homogeneity compared to the other class categories. This is because the homogeneity value depends on bright and dark parts of a certain size and also include some changes from dark to bright. Meanwhile, insufficient welds class categories produced larger contrast value, but good weld class categories recorded higher contrast value

Influence of even nucleon numbers and closed shells on mass and charge distribution in low energy fission

Extensive experimental and evaluated yield data are now available for the fragments in low energy nuclear fission. Using these data we re-examined the influence of even nuclear numbers and closed shells on the mass and charge distribution in low energy fission. We used WAHL's Zp model and Ap model. We also examined the effects of Z=50, N=82 and possibly N=88 shells. A new method was developed based on two Gaussian curves for the even and odd products. The EOZ and EON values calculated are based on these different methods and are seen to be consistent with each other in spite of the somewhat different definitions of the even-odd effect. The even-odd effect decreases with an increasing fissility parameter. The EON values are substantially lower than the corresponding EOZ values, probably due to the effect of washing out the neutron pairing effect by prompt neutron emission. The magnitude of the even-odd effect varies with different mass regions. The EOZ and EON values decrease as they go from asymmetric to symmetric regions in mass distributions. © 1994 Akadémiai Kiadó

Doğu Akdeniz Bölgesi’nde Organik Turunçgil Üretiminde Hastalık, Zararlı ve Yabancı Otların Mücadelesinin Yönetimi

Bu çalışma, 2003-2006 yılları arasında Hatay (Dörtyol) ve Mersin (Erdemli) illerinde yürütülmüş olup, çalışmada Mars Seedless Altıntop ve Valensiya Portakal çeşidinde zararlı, hastalık ve yabancı otlara karşı organik tarıma uygun mücadele yöntemlerinin uygulanabilirliği araştırılmıştır. Çalışmada her iki turunçgil çeşidinin bulunduğu alanlarda Organik Tarım ve Entegre Mücadele uygulamaları birlikte yürütülmüştür. Organik tarım yapılan bahçelerde organik ürün sertifikası alımına yönelik gerekli denetlemeler yaptırılarak ürün sertifikalandırılmıştır. Tüm bahçelerde bulunan zararlı ve doğal düşmanlar gözle inceleme ve darbe yöntemi ile saptanmıştır. Organik tarım bahçelerinde, ekonomik zarar eşiğini aşan zararlılara (Turunçgil Unlubiti, Turunçgil Kırmızı Örümceği, Yıldız Koşnili) karşı doğal düşman salımı, kükürt ve yazlık beyaz yağ uygulaması yapılarak mücadele edilmiştir. Hastalık etmenleri makroskopik ve mikroskobik incelemelerle belirlenmiştir. Denemenin yürütüldüğü Mars Seedless Altıntop bahçesinde Gövde Zamklanma Hastalığı [Phytopthora citropthora (Sm. et Sm) Leonian] tespit edilmiştir. Bu hastalıkla mücadele için enfekteli ağaçların gövdesinde kabuk temizliği yapılmış temizlenen yara yerlerine %2 oranında Bordo Bulamacı uygulanmıştır. Yabancı otlarla organik yetiştiricilikte mücadele amacıyla örtücü bitki uygulaması yapılmıştır. Dört örtücü bitki türü; arpa, İngiliz Çimi, Adi Fiğ, Acem Üçgülü denemeye alınmıştır. Toprağı kaplama alanı yönünden en yüksek değerler, ile yabancı ot kaplama alanı ve birim alandaki yabancı ot tür ve sayısı yönünden en düşük değerler arpa ve fiğden alınırken, yaş ve kuru ağırlık yönünden en yüksek değer yine fiğ parselinden elde edilmiştir. Bahçelerde Turunçgil Nematodu (Tylenchulus semipenetrans Cobb.) da belirlenmiş ancak populasyonları zarar eşiğinin altında bulunmuştur. Parsellerde kullanılan çiftlik gübresi ve yeşil gübre toprak ve yaprak analizleri sonuçlarına göre uygulanmıştır. Kullanılan her türlü girdiler ve yapılan işlemler Tarım Bakanlığınca yayımlanan yönetmeliğe uygun olarak kontrol ve sertifikasyon kuruluşunun da onayı ile seçilmiştir. Her yıl meyve hasat döneminde kalıntı analizleri ve pomolojik analizler yaptırılmış, bir üretim periyodu sonunda ağaç başına ortalama verim belirlenmiştir. Proje çalışmaları, ürüne “organik ürün” sertifikası veren danışman firma tarafından kontrol edilmiş ve çalışmada organik meyve elde edilmiştir

Comparison of Different Wavelength Propagations over Few-Mode Fiber based on Space Division Multiplexing in Conjunction with Electrical Equalization

Abstract—Nonlinearities in optical fibers deteriorate system performances and become a major performance-limiting issue. This article aims to investigate the compensation of nonlinear distortions in optical communication systems based on different wavelength propagations over few-mode fiber (FMF). The study adopted Space Division Multiplexing (SDM) based on decision feedback equalizer (DFE). Various transmission wavelength of the FMF system is applied to mitigate the attenuation effect on the system. In this paper, different wavelengths (780, 850 and 1550 nm) are used in SDM. Extensive simulation is performed to assess the attenuation and Bit Error Rate (BER) in each case. The results show that the wavelength of 1550 nm produces higher power and less attenuation in the transmission. Furthermore, this wavelength produces the best distance with less BER compared to 780 nm and 850 nm wavelengths. Moreover, the validations show improvement in BER and eye diagram

Comprehensive review on controller for leader-follower robotic system

985-1007This paper presents a comprehensive review of the leader-follower robotics system. The aim of this paper is to find and elaborate on the current trends in the swarm robotic system, leader-follower, and multi-agent system. Another part of this review will focus on finding the trend of controller utilized by previous researchers in the leader-follower system. The controller that is commonly applied by the researchers is mostly adaptive and non-linear controllers. The paper also explores the subject of study or system used during the research which normally employs multi-robot, multi-agent, space flying, reconfigurable system, multi-legs system or unmanned system. Another aspect of this paper concentrates on the topology employed by the researchers when they conducted simulation or experimental studies

Development of Subsea Altimeter Sensor System (SASS) Using Portable Sonar Sensor Fish Finder Alarm for Unmanned Underwater Vehicles

This paper describes the development of Subsea Altimeter Sensor System (SASS) for Unmanned Underwater Vehicles (UUV) Application using portable sonar sensor fish finder alarm system. Altimeter Sensor system is used to measure the depth of water. This altimeter sensor design valid for shallow water depth ranges maximum 100 m. This SASS will be applied to Underwater Remotely Operated Vehicles (ROV) design to verify the SASS performances. Experiments conducted to measure a depth of lab test, swimming pool test and Ayer Keroh Lake test. The experiments conducted in lab pool and swimming pool to measure and estimate the error and accuracy of SASS performances because of known the depth of water. The error of Altimeter Sensor System is 10% or ± 5 cm depth and accuracy of SASS very high about 90% for the both experiments. The results on Lake of Ayer Keroh at certain point can be acceptable. The 3D design of seabed mapping is plotted using MATLAB and Excel