Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

7.845

P-Index

This Author published in this journals

All Journal Reaktor International Journal of Renewable Energy Development METANA Sawala : Jurnal Administrasi Negara Indonesian Journal of Chemistry Jurnal Organisasi Dan Manajemen Indonesia Journal of Halal Prosiding Seminar Nasional Sains dan Teknologi Terapan Conference on Innovation and Application of Science and Technology (CIASTECH) JRA: Jurnal Riset Akuntansi Jurnal Masyarakat Merdeka (JMM) Jurnal Maksipreneur: Manajemen, Koperasi, dan Entrepreneurship JIA (Jurnal Ilmiah Agribisnis) : Jurnal Agribisnis dan Ilmu Sosial Ekonomi Pertanian Dinasti International Journal of Education Management and Social Science ASEAN Journal of Chemical Engineering JUMANTIK: Jurnal Mahasiswa dan Peneliti Kesehatan Sains dan Matematika Jurnal Ilmu Pemerintahan, Administrasi Publik, dan Ilmu Komunikasi (JIPIKOM) Ilmu Pendidikan Journal of Economics and Business UBS Journal La Bisecoman Bima Abdi: Jurnal Pengabdian Masyarakat PAEDAGOGY : Jurnal Ilmu Pendidikan dan Psikologi Educoretax COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Buletin Sistem Informasi dan Teknologi Islam Jurnal Teknologi Lingkungan Lahan Basah Jurnal Ekonomika Dan Bisnis Journal of Accounting and Finance Management (JAFM) Jurnal Pengabdian Masyarakat Bhinneka Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Journal of Management and Administration Provision AHKAM : Jurnal Hukum Islam dan Humaniora Journal Research of Social Science, Economics, and Management Prosidia Widya Saintek Jurnal Pengabdian Pada Masyarakat Journal of Social Science Buletin Ilmiah Pendidikan GOTAVA Jurnal Profesi Insinyur Indonesia Multidisiplin Pengabdian Kepada Masyarakat (M-PKM) Waspada : Jurnal Wawasan Pengembangan Pendidikan International Journal of Renewable Energy Development Jurnal Teknik Indonesia Muria Jurnal Agroteknologi The Indonesian Journal of Health Science Jurnal Ilmiah Kesehatan dan Kebidanan

Silviana Silviana

Department Of Chemical Engineering, Faculty Of Engineering, Diponegoro University, Jl. Prof. Soedarto SH, Tembalang, Semarang 50275, Central Java, Indonesia

Author-ID : 380399

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 73 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

EFEK PENYIMPANAN BIODIESEL BERDASARKAN STUDI KAJIAN DEGRADASI BIODIESEL CPO Silviana Silviana; Luqman Buchori
Reaktor Volume 15 No.3 April 2015
Publisher : Dept. of Chemical Engineering, Diponegoro University

BIODIESEL STORAGE EFFECT BASED ON DEGRADATION OF CPO BIODIESEL Biodiesel denotes as ester mono alkyl of long chain fatty acid such as CPO (crude palm oil) which can biologically degrade more than 98% within three (3) weeks, whereas fossil fuel degrade partially only. The objective of research was to investigate degradation of biodiesel during storage. The scope of this research covered the container design, storage condition, initial analysis of CPO biodiesel, and degradation rate during product storage by using oxidation rate of biodiesel. The results showed that there was degradation on CPO biodiesel during product storage. It can be seen from increasing of acid value and saponification number, decreasing of iodine number, increasing of total glycerol value, and decreasing of ester number in biodiesel product. Storage period prediction of biodiesel can be approached by using equation, i.e. ????=0.0012????2−0.0052????+0.0609. In this research, the maximum storage period of CPO biodiesel achieved at 27 weeks. Other result showed that well storage was achieved with closed-galvanized container.Keywords: biodiesel; CPO; degradation; storage period AbstrakBiodiesel merupakan ester mono alkil dari asam lemak rantai panjang, seperti CPO (crude palm oil) yang terdegradasi lebih dari 98% secara biologi dalam 3 minggu, sedangkan bahan bakar diesel hanya terdegradasi sebagian. Penelitian ini bertujuan untuk mengamati proses degradasi biodiesel selama masa penyimpanan. Penelitian ini meliputi rancangan tangki biodiesel, kondisi penyimpanan, analisa awal biodiesel, dan studi laju degradasi pada tahap penyimpanan produk dengan ditelaah laju oksidasi pada biodiesel.Hasil penelitian menunjukkan bahwa selama periode proses penyimpanan terjadi proses degradasi biodiesel. Hal ini terlihat dari hasil analisa yang menunjukkan bahwa terjadi kenaikan angka asam selama proses penyimpanan, kenaikan angka penyabunan, penurunan bilangan iodine, kenaikan kadar gliserol total dan penurunan kadar ester di dalam biodiesel. Prediksi periode penyimpanan biodiesel dapat didekati dengan persamaan ????=0,0012????2−0,0052????+0,0609. Dari persamaan tersebut diperoleh bahwa periode maksimal penyimpanan biodiesel adalah 27 minggu. Hasil penelitian juga menunjukkan bahwa penyimpanan biodiesel CPO yang paling baik adalah dengan menggunakan bahan galvanized dengan kondisi penyimpanan yang tertutup.

Preparation of Cassava Bagasse Starch-Based Biodegradable Film Reinforced with Chicken Feet Gelatin, Citric Acid as Crosslinker, and Glycerol as Plasticizer Silviana Silviana; Piontek Benedictus Brandon; Bella Ayu Silawanda
Indonesian Journal of Chemistry Vol 18, No 4 (2018)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.26766

Chicken feet is one of sources used to produce biodegradable films due to inexpensive and abundant source. Chicken feet contains extracted gelatin amount of 27.61 to 33%. This biofilm was prepared from cassava bagasse starch with citric acid as cross-linker and glycerol as plasticizer. Cassava bagasse contains about 40–64% of starch. This paper observes the optimum composition of cassava bagasse starch-based biofilm preparation upon Central Composite Design with variables of gelatin, glycerol, and citric acid concentration with response of tensile strength and elongation at break. This research was executed in several steps, i.e. extraction of gelatin, extraction of cassava bagasse starch, and casting. Optimum condition of this biofilm preparation can be obtained at 12.98% w of gelatin content, 0.22% w of glycerol and 0.27% w of citric acid by releasing 21.73 MPa of tensile strength and 19.73% of elongation at break. Mass loss of biofilm with lower gelatin content gave almost the same mass loss for blank biofilm (cassava bagasse starch-based without gelatin content). Increasing of gelatin content in the biofilm, increasing of the biofilm mass loss. However, the biofilm had good thermal stability by thermal gravimetric analysis with higher temperature to obtain inorganic residue than that of blank biofilm.

Comparing the Chemical Characteristics of Pectin Isolated from Various Indonesian Fruit Peels Siti Susanti; Anang Mohamad Legowo; Nurwantoro Nurwantoro; Silviana Silviana; Fahmi Arifan
Indonesian Journal of Chemistry Vol 21, No 4 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.59799

The Indonesian pectin manufacturing industry is underdeveloped, and pectin is imported to meet its increasing demand; we attempted to isolate pectins from various fruit peels, such as orange peel (OP), papaya peel (PP), mango peel (MP), watermelon peel (WP), and chayote peel (CP) and investigated their chemical characteristics (equivalent weight of the extracted pectins and their moisture, ash, methoxyl, and galacturonic acid (GA) contents). Acid extraction, purification, precipitation, and drying processes were used to process the isolated pectins. We examined their chemical properties for conformance to quality standards advised by the International Pectin Producers Association (IPPA). The moisture (except OP pectin) and ash contents (except PP pectin) of the extracted pectins were within the limit set by IPPA. However, the equivalent weight (W eq) of any of the isolated pectins did not satisfy IPPA standards. The methoxyl contents of the pectins isolated from OP, WP, and CP satisfied IPPA standards. High methoxyl pectins were isolated from PP and MP. The galacturonic acid contents of the isolated pectins were higher than the acceptable limit of the GA level. Thus, OP, PP, MP, WP, and CP are potential sources of pectin.

A Review on the Recent Breakthrough Methods and Influential Parameters in the Biodiesel Synthesis and Purification S. Silviana; Didi Dwi Anggoro; H. Hadiyanto; Cantika Aulia Salsabila; Kevin Aprilio; Anisa Widia Utami; Afriza Ni'matus Sa'adah; Febio Dalanta
International Journal of Renewable Energy Development Vol 11, No 4 (2022): November 2022
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2022.43147

Biodiesel has recently received much attention as an energy source with numerous benefits such as high degradability, negligible toxicity, and minimal emissions of carbon monoxide gases as well as particulates. Therefore, this research aims to compare, review, and summarize the conventional and advanced methods of biodiesel production. Currently, some emerging processes that were developed for advanced biodiesel production include microwave-assisted synthesis, ultrasonic-assisted synthesis, supercritical transesterification, and liquid phase plasma discharge technology. The types of feedstocks, catalysts, and operating conditions as the influential parameters in biodiesel synthesis are also discussed. Moreover, in the purification process, the effectiveness of purification depends on the type of catalyst applied in the synthesis process. This research also reviewed and compared several commonly used purification methods such as wet and dry washing, ion exchange and precipitation, complexation, and membrane-based separation that have shown significant results along with the impacts of biodiesel production on environmental and economic sectors

Statistical Approaching for Superhydrophobic Coating Preparation using Silica Derived from Geothermal Solid Waste S Silviana; Adi Darmawan; Agus Subagio; Febio Dalanta
ASEAN Journal of Chemical Engineering Vol 19, No 2 (2019)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Material quality can be affected by humidity resulting in short durability. Many observations have been conducted to endure the durability of material, such as coating methods. However, recent methods are unaffordable. Therefore, this paper observes efficient and effective method to prepare superhydrophobic silica coatings derived from geothermal waste. The method was conducted by spraying. The objective of this paper is to observe optimum condition by using variables of silica concentration, TMCS (trimethylsilyl chloride) concentration, solvents and materials confirmed by contact angle of material based on statistical analysis. The study consisted of silica treatment for purification and preparation of superhydrophobic silica coatings. The study was carried out in factorial design of 81 experiments with one-time replication through Design Expert software (version 8.0.6). Based on previous research, the experiment was obtained optimum condition at 5.5 %w/v, 13 %v/v, isooctane, zinc coated for silica concentration, TMCS concentration, solvent and material, respectively, releasing contact angle by instrumentation of 180°. By ANOVA analysis, it was also complied the optimum condition of the superhydrophobic coating solution preparation achieved the same condition with experimental data releasing contact angle of 179.69°.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2022.43147

Evaluasi Perancangan Pengering Surya Hibrid untuk Produk Pertanian dan Pangan Suherman, S; Widayat, W; Silviana, Silviana
Indonesia Journal of Halal Vol 5, No 2 (2022): Indonesian Journal of Halal
Publisher : Pusat Kajian Halal Undip

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/halal.v5i2.16801

Salah satu aspek penting dalam ketahanan pangan adalah sistem pengolahan pasca panen untuk mempertahankan masa simpan produk pertanian dan pangan. Pengeringan adalah salah satu pendekatan tertua dan paling efisien untuk tujuan tersebut. Potensi energi matahari yang sangat besar di Indonesia menjadikan teknologi pengering surya hybrid sangat potensial untuk dikembangkan. Dalam penelitian ini, perancangan dan evaluasi terhadap pengering surya hibrid untuk produk pertanian dan pangan, baik sekala lab maupun sekala industri akan dilakukan. Dalam penelitian ini produk pertanian yang digunakan sebagai bahan pengujian adalah jahe, sohun, chip mocaf, dan bawang merah. Parameter yang digunakan untuk mengukur kinerja alat pengering adalah kurva pengeringan, dan efisiensi alat pengering. Hasil penelitian menunjukkan bahwa perancangan pengering surya langsung hibrid Gas LPG, pengering surya tak langsung hibrid Gas LPG, dan pengering surya langsung hibrid Biomass, telah berhasil dan bisa mengeringkan produk pangan dan pertanian, dalam hal ini jahe, chip mocaf, dan bawang merah. Kadar air produk pangan dan pertanian yang dikeringkan telah memenuhi standar. Efisiensi alat pengering semakin menurun dengan bertambahnya waktu proses pengeringan. Abstract [Title: Design Evaluation of Hybrid Solar Dryer for Agricultural and Food Products] One important aspect of food security is the post-harvest processing system to maintain the shelf life of agricultural and food products. Drying is one of the oldest and most efficient approaches for the purpose. The enormous potential for solar energy in Indonesia makes hybrid solar dryer technology very potential to be developed. In this research, the design and evaluation of hybrid solar dryers for agricultural and food products, both on a lab scale and on an industrial scale, will be carried out. In this study the agricultural products used as test materials were ginger, vermicelli, mocaf chips, and shallots. The parameters used to measure the performance of the dryer are the drying curve and the efficiency of the dryer. The results showed that the design of LPG gas hybrid direct solar dryer, LPG gas hybrid indirect solar dryer, and Biomass hybrid direct solar dryer, has been successful and can dry food and agricultural products, in this case ginger, mocaf chips, and shallots. The moisture content of dried food and agricultural products meets the standards. The efficiency of the dryer decreases with increasing drying time.

Monitoring dan Evaluasi Kegiatan Penanaman Mangrove (Kasus: Desa Sebuntal, Kabupaten Kutai Kartanegara) Rafiâ€™i, Ahmad; Ritonga, Irwan Ramadhan; Budiarsa, Anugrah Aditya; Eryati, Ristiana; Novia, Rani; Ahmad, Ahmad; Firman, Firman; Silviana, Silviana; Main, Aminullah Aminul; Akbar, Rizali; Saputra, Dharma; Soenarih, Asih; Tobing, Binto Iskandar Hasibuan; Apriliyani, Vivi; Aprilia, Dita
Jurnal Teknologi Lingkungan Lahan Basah Vol 12, No 2 (2024): April 2024
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v12i2.75151

Damage to mangrove ecosystems in coastal areas could result in biotic and abiotic physical changes. This damage might occur due to natural factors or human activities. Among the damaged mangrove ecosystems in East Kalimantan Province is Sebuntal Village. The aim of this research is to monitor and evaluate the survival rate of mangrove seedlings in Sebuntal village, Kutai Kartanegara Regency. The research population used in this research was all mangrove seedlings (Avicennia spp) planted during community service activities on August 9th, 2023. The research method used in this study was the survey method. It was found that the survival rate in this study was only 8.2%. This research showed that individual mangroves' survival rates were unsuccessful due to inappropriate planting times, hydro-oceanographic patterns that are poorly studied, and poor seed preparation.

PENGARUH NET INTEREST MARGIN, NON-PERFORMING LOAN DAN CAPITAL ADEQUACY RATIO TERHADAP RETURN ON ASSET BANK ASING TAHUN 2018 - 2022 Yuniarti, Rita; Sari, Diana; Rusmawan, Wedi; Nuryaman, Nuryaman; Fadjar, Achmad; Silviana, Silviana
Jurnal Riset Akuntansi Vol. 16 No. 1 (2024): Jurnal Riset Akuntansi
Publisher : Program Studi Akuntansi | Fakultas Ekonomi dan Bisnis | Universitas Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/jra.v16i1.12513

Decreasing and fluctuating ROA shows that the bank's performance is still not good, according to the OJK Research Director (2022), the banking sector's ROA start to increase but still not optimal. This study aims to empirically examine the effect of net interest margin, non-performing loans, and capital adequacy ratios on return on assets. The population in this study are foreign banks 2018-2022 with a sample of 10 banks in the good category according to the OJK. The results showed that Net Interest Margin (NIM) had a significant and positive effect on Return on Assets (ROA), Non-performing loans (NPL) had a significant and negative effect on Return on Assets (ROA), while Capital Adequacy Ratio (CAR) had no significant effect on Return on Assets (ROA). Keyword: Net Interest Margin, Non-Performing Loan, Capital Adequacy Ratio, Return on Assets

Kumkang, Sistem Konstruksi Bekisting Alumunium Formwork dengan Konsep Green Construction Priastiwi, Yulita Arni; Silviana, Silviana; Purwaningsih, Ratna
Jurnal Profesi Insinyur Indonesia Vol 1, No 6 (2023): JPII
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpii.2023.18429

Hal penting dalam proyek bangunan bertingkat yang harus diperhatikan diantaranya adalah penentuan sistem bekisting dan perancah, Pemilihan yang tepat akan berpengaruh pada keselamatan , waktu ,dan hasil konstruksi. Adanya konsep green construction yang mendorong cara membangun dengan memperhatikan aspek kelestarian lingkungan hidup mendorong adanya inovasi baru pada sistem bekisting. Kumkang alumunium formwork yang merupakan bagian dari bekisting sistem menggunakan material alumunium untuk sistem bekisting dengan bentuk panel-panel standar yang dirangkai, dianggap memenuhi persyaratan untuk green construction dengan meninggalkan metode konvensional yang menggunakan kayu. Langkah dari sistem bekisting Kumkang dimulai dengan adanya perencanaan hingga Shell Drawing yang merupakan gambar shop drawing bekisting menjadi hal yang harus diperhatikan. Shell Drawing menunjukkan letak-letak panel bekisting , jumlah tiang penyangga , sistem perkuatan, konektor, dan lain-lain. Shell drawing umumnya dibuat oleh Kumkang dengan dasar gambar yang dikirimkan oleh customer, yang sudah disetujui oleh manajemen konstruksi dan owner. Langkah berikutnya berupa penggabungan gambar struktur, arsitektur, dan mechanical-,electrical- plumbing (superimposed ) dan dilakukan pengecekan ulang sebelum panel standar mulai diproduksi secara parsial. Hasil penerapan sistem bekisting Kumkang pada proyek Rusun Pulo Jahe II Jakarta Timur mampu mempercepat pekerjaan floor to floor, memangkas waktu pengerjaan proyek, lebih aman dengan adanya fix shoring, dan lebih ramah lingkungan dibandigkan dengan metode konvensional.

Co-Authors . Widayat A Halim Abdul Karim Adi Darmawan Afriyanti, Kurnia Afriza Ni'matus Sa'adah Agung Hari Wibowo Agus Subagio Ahmad Ahmad Ahmad Alvinal Azmi Akbar, Rizali Alfajar, Difa Wahyu Alfariji, Moh Anandhari, Mailinda Utami Anang M Legowo Andri Cahyo Kumoro Andy Hardianto Anggadanta, Rullyansyah Anggraini, Delvia Putri Angraini, Dwi Ayu Anisa Widia Utami Anugrah Aditya Budiarsa, Anugrah Aprilia, Dita Aprilina Purbasari Apriliyani, Vivi Arie Restu Wardhani Arief Rizki Fadhillah Aries Susanty Arif, Dwi Muhammad Arjula, Jus Armansyah Matondang, Armansyah Aulia, Dwyky Hizbul Ayu Wulandari Badrus Zaman Baskara, Andika Bella Ayu Silawanda Cahyo, Agung Dwi Candra Aditya Cantika Aulia Salsabila Dadang Hermawan Dessy Ariyanti Destia, Sella Dewi, Ririn Sari Dharma Saputra, Dharma Diana Sari Diana, Asna Didi Dwi Anggoro Edy Purwanto Eka Wulandari Elmo, Rifaldi Endah Lestari Eryati, Ristiana Fadjar, Achmad Fadjar, Ahmad Fahmi Arifan Farida Yuliani Febio Dalanta Febio Dalanta Ferry Hermawan Firdawsyi Nuzula Firman Firman Firnanda, Irma Fitri Sukmawati, Fitri Gito Sugiyanto Grace, Viona H Hadiyanto H. Hadiyanto Hakim, M Rouful Hamzah, Fazlena Hapsari, Farida Diyah Harusda, Dadhan Helga, Patricia Helmy, Arif Hidayat, Asnam I Nyoman Widiasa Ikhtisholiyah, Ikhtisholiyah Irwan Ramadhan Ritonga Ismael Saleh Istiqomah Muryaningsih Kevin Aprilio Kevin Ryo Pratama Kristy, Ellena Laeli, Sobrul Lia, Rahma Lilik Rochmah, Lilik Rochmah Limbang Kustiawan Nuswantara Lovela, Adelia Luqman Buchori M. Fendy Kussuma Hadi Sufyan Mahanani Tri Asri Main, Aminullah Aminul Marlina Marlina Mastiah Mastiah, Mastiah Melati, Emilla merliyana, Merliyana Morin, Stefania Muhamad Arifin, Muhamad Muhammad Aswar Limi Muslimin, M. Nabilla, Salsa Nadiroh, Siti Novia, Rani Nugraha, Akhbar Nurmaliza, Zilha NURUL HIDAYAH Nurwantoro Nurwantoro Nuryaman Nuryaman Ogy Gugesby, Raden Pamungkas, Prihantoro Pancaputri, Arimbi Piontek Benedictus Brandon Prakarsah, Sandy Pramesthi, Rahajeng Diah Puji Rahayu Purbo Suwandono Purnama Putra, Purnama Putri, Avira Maresa Rafiâ€™i, Ahmad Rafi’i, Ahmad Rahmah Hastuti Rahmansyah, Agie Ahadian Rahmawati, Eko Ratna Purwaningsih Rosnawaty, Rini Rusipah, Ica Rusmawan, Wedi S Suherman Sabirin, Wahyu Saepul Hayat, Usep salamah salamah Saleh, Khaerul Saputra, Halent Alditya Sari, Maria Anita Satiti, Nantiya Sa’adah, Niltis Septiani, Venny Riska Setiabudi, Herma Dina Siagian, Erol Pancamotan Siti Rahmawati Siti Susanti Soenarih, Asih Sukoco, Rizki Anggara Sulardjaka Sulardjaka Sumardi . Suprastiyo, Suprastiyo Surbakti, RA Sasqia Maharani Susanti, Wilda Maya Syafrudin Syafrudin Syifa, Viona Syuraini, Syuraini Taufik Wal Hidayat, Taufik Wal Taufik, Ikhwan Teguh Prasetyo Tivani, Ernia Tobing, Binto Iskandar Hasibuan Tricahyo, Vion Age Tumanggor, Raja Oloan Tuti Alawiyah Utama, Nabila Putri Vebrina Hania Cholily Wahyuni, Titik Wardhani, Hutami Kusuma Wiedilaksono, Ardian Wijanarko, Aji Wisuda, Nova Laili Yelta Okta Dina Yulianty, Dhea Yulita Arni Priastiwi Yuniarti, Rita

Title Search

Found 73 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 73 Documents
Search