6 research outputs found

    Strategic Leadership for Managing Diversity

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    The changing workforce in organizations worldwide, including those in Africa, makes managing diversity a critical issue that must be a part of any organizational business strategy. This qualitative case study explored the success and failure of leadership strategies in managing diversity in organizations in the West African region and the adverse effects globalization, and ethnocentrism might have in managing diversity in the workplace. This study took place in Africa, and 15 participants from this West African organization participated in interviews and surveys. The data collection yielded themes the participants in the study thought could improve leaders\u27 capabilities in managing a diverse workforce. A thematic analysis of the interviews, survey respondents\u27 data, and organizational documents identified challenges and opportunities to achieve diverse workforce organizational goals. Among these challenges is implementing policies to advance an organization\u27s diversity, equity, and inclusion efforts to address the possible failure to create a leadership strategy for managing diversity within the Western African technology industry, resulting in decreased workers’ job satisfaction, retention, organizational success, and representation of women and minorities in senior leadership positions. This research paradigm used a constructive and transformative framework to study the named organization in which diversity in the workplace has become a reality because of the global business environment. The data coding and analysis used NVivo, and the survey questionnaires were analyzed using SPSS descriptive statistical analysis capabilities

    PENGARUH PARAMETER PEMESINAN DAN KOMPOSISI MATRIKS CAMPURAN POLYESTER & VINYLESTER TERHADAP PERUBAHAN KEKERASAN YANG TERJADI PADA PERMUKAAN SILINDRIS SETELAH DIMESIN

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    Penelitian ini menunjukkan terjadinya perubahan kekerasan dari permukaan silindris komponen dari matrik campuran Polyester dan Vinylester setelah dimesin (bubut & gurdi). Perubahan ini disebabkan oleh berbagai faktor diantaranya yang diteliti adalah putaran spindel, gerak makan dan komposisi material (Polyester & Vinylester). Dalam pelaksanaan proses pemesinan dalam rangka menghasilkan komponen yang sesuai dengan yang diinginkan perubahan ini tidak diharapkan atau kalau dibolehkan perubahannya tidak begitu signifikan atau mendekati kekerasan sebelum dimesin. Dari hasil pengujian permukaan bubut yang dilakukan dengan 3 level putaran spindel, 3 level gerak makan, 3 level kedalaman potong, 3 level komposisi campuran Polyester & Vinylester dominan Polyester dan 3 level komposisi campuran Polyester & Vinylester dominan perubahan terbaik dicapai pada putaran 90 rpm (level 1) gerak makan 0,05 mm/rev. (level 1), kedalaman potong 0,4 mm (level 1), campuran 100% polyester (level 1)Dari ke 4 faktor yang berpengaruh ini faktor gerak makan memberikan kontribusi terbesar. Untuk untuk percobaan kedua pada komposisi matriks dominan polyester perubahan kekerasan terbaik didapatkan perubahan terbaik dicapai pada putaran 215 rpm (level 2) gerak makan 0,10 mm/rev. (level 2), kedalaman potong 1,2 mm (level 3), campuran 40% polyester dan vinyl ester 60%(level 1). faktor kedalaman potong yang memberikan kontribusi terbesar untuk percobaan ini.pada percobaan proses gurdi dominan polyester kekerasan terbaik dicapai pada putaran 1170 rpm (level 3) gerak makan 0,05 mm/rev. (level 1), kedalaman potong 7 mm (level 3), campuran 80%polyester 20%vinilyester (level 2)Dari ke 4 faktor yang berpengaruh faktor campuran spesimen memberikan kontribusi terbesar Untuk untuk percobaan ini sedangkan pada penggurdian dominan vinlyester kontribusi terbesar juga pada faktor campuran spesimenya,sedangkan kekerasan terbaik dicapai d pada putaran 1170 rpm (level 3) gerak makan 0,05 mm/rev. (level 1), kedalaman potong 7 mm (level 3), campuran 80%polyester 20%vinilyester (level 2)Dari ke 4 faktor yang berpengaruh faktor campuran spesimen memberikan kontribusi terbesar Untuk untuk percobaan ini dan rata-rata perubahan kekerasan yang terjadi meningkat setelah dilakukan proses pemesinan

    Adaptasi Masyarakat Siak Terhadap Perubahan Ekologinya

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    This study described adaptation options in 4 villages in the Siak sub-district, Siak Sri Indrapura district, Riau province. Since the beginning of the reformation, Siak Sri Indrapura district was established which was expanded of Bengkalis district. Simultaneously also present there are plantation forest industries, oil palm plantations, immigration and urban development. This study is a qualitative study with a social history approach. The research was conducted from July 2022 to December 2020. Data was obtained through observation, in-depth interviews and FGDs at the village and Siak sub-district levels. Data were analyzed using a taxonomic analysis approach, the results of the analysis were written descriptively. The results of this study found that the presented of the Siak Sri Indrapura district, the plantation forest industry and the plantation industry as well as migrants caused the community to be uprooted from their agrarian economic culture. To be able to survive, the community carries out a long-term adaptation process through the transfer of sources of livelihood from agriculture to urban services and seizes the remnants of the urban economy and education. This study concludes that the pressure of ecological change forces people to adapt according to the resources they have. This study strengthens Bennett's adaptation theory that the adaptability of society does not exceed the resources they have.Key Word : Adaptation, Agriculture, Urban Services, Siak Community

    Complementary Digital Watermarking Technique Based on Wavelet Transformation

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    摘 要 影像數位浮水印是利用人眼無法察覺影像細微變化的弱點,將特殊的資訊直接嵌入原數位影像中;縱使影像資料經過加解密、壓縮、非惡意的或其它攻擊性的影像處理,所嵌入的資訊依然可偵測出來 在本論文中,提出一種利用小波轉換之互補式浮水印技術做為數位影像資料的保護,在高頻與低頻部份,分別以兩種不同方式,隱藏兩個浮水印,使其在遭受攻擊時,至少有一個浮水印能存活。同時在偵測浮水印過程中不需要原始影像來輔助,因而可節省記憶體儲存空間,且在模擬測試中也證明,可減少原始影像因加入浮水印所造成之失真。 我們針對photoshop 常做之一般影像處理,來驗證加入浮水印之影像經過JPEG壓縮、模糊化、銳利化、雜訊化、圖形裁剪處理後其浮水印偵測結果,結果顯示我們的方法在遭受一般影像攻擊時,大部分都至少有一個浮水印能存活。Abstract Digital image watermark is a technique which takes advantage of the inability of human's eyes to differentiate the subtle change of images. It is a special information embedded and hidden in the original image. Even if the image data is encrypted and decrypted, compressed, unintentional or any other kind of attack, the embedded digital image watermark can still be detected. In this thesis,we propose a complementary watermark technique which uses the skill of wavelet transformation to protect image data. Two complementary watermarks are hidden in the high and low frequencies respectively in the transformed frequency domain. Using this technique , there will be at least one watermark can survive under attack .Besides, in the process of retriever the watermark, the original image isn't needed. Thus,save a lot of memory. The simulation results show that distortion of the original image caused by the insertion of watermark can be minimized. we also examine the outcome of watermark detection under JPEG compression, blurring, sharpening, noise and cutting based on the average image processing skills of Photoshop. The results show that our method can survive from most of the attack.目 錄 第一章 緒論 1 1.1 簡介 1 1.2 動機與目的 4 1.3 論文架構 5 第二章 浮水印背景及小波函數 6 2.1 背景 6 2.1.1 數位浮水印 6 2.1.2 數位浮水印技術要求 7 2.2 小波函數及相關技術 8 2.2.1 小波函數 8 2.2.2 小波函數相關技術 8 2.2.2.1 Haar 8 2.2.2.2 JND 12 2.2.2.3 Quadtree 13 2.2.2.4 Cocktail Watermarking 14 第三章 互補式影像浮水印技術 18 3.1 概述 18 3.1.1 低頻數位浮水印 19 3.1.1.1 低頻數位浮水印加入演算法 19 3.1.1.2 低頻數位浮水印偵測演算法 22 3.1.2 高頻數位浮水印 22 3.1.2.1 高頻數位浮水印加入演算法 22 3.1.2.2 高頻數位浮水印偵測演算法 24 3.1.3 高頻加低頻數位浮水印 25 3.2 系統架構 26 第四章實驗步驟與結果分析實驗結果 28 4.1 軟體測試步驟 29 4.1.1 浮水印加入軟體測試 29 4.1.2 浮水印偵測軟體測試 31 4.2 實驗結果 34 4.2.1 失真壓縮 34 4.2.2 低通濾波模糊化 37 4.2.3 圖形裁剪 38 4.2.4 銳利化 43 4.2.5 雜訊化 44 4.2.6 反交錯式 48 4.2.7 紋理化、擴散光暈 49 4.2.8 雲彩化、鋸齒化 50 4.2.9 風動效果、多面體效果 51 4.2.10 馬賽克效果、去除斑點 52 第五章 結論與未來展望 55 5.1 結論 55 5.2 未來展望 55 參考文獻 5
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