bluuebunny/crossref_metadata_2025_split huggingface dataset:
Novel method to visualize Preston’s coefficient distribution for chemical mechanical polishing process
Authors: Hashimoto Yohei , Furumoto Tatsuaki , Sato Takumi , Suzuki Norikazu , Yasuda Hozumi , Yamaki Satoru , Mochizuki Yoshihiro 
Published: October 2022

Abstract
Preston’s law is widely used in polishing simulations in which the distribution of Preston’s coefficients on an entire wafer surface is generally assumed to be uniform. However, it is more likely that the distribution is not uniform and depends on several factors. To clarify Preston’s coefficient distribution in chemical mechanical polishing (CMP), we propose a novel experimental technique. In the proposed method, the unique experimental approach “stop polishing,” where the wafer does not rotate, and thus the circumferential variation of the coefficient is not averaged, is applied. Oxide-CMP experiments verified the uneven Preston’s coefficient distribution depending on the distance from the pad rotation center. Furthermore, we investigated the influence of slurry supply position on Preston’s coefficient distribution, and clarified that the distribution depends on slurry flow condition. Therefore, the proposed method is expected to be a novel tool for analyzing the CMP process from the perspective of Preston’s coefficient distribution.
Multi-key Fully Homomorphic Encryption without CRS from RLWE
Authors: Luo Fucai 
Published: October 2022

<p>Fully Homomorphic Encryption (FHE) is a powerful encryption system in cloud computing that allows homomorphic computations on encrypted data without decrypting them. Multi-key fully homomorphic encryption (MFHE), as an extension to FHE, allows homomorphic computations on ciphertexts encrypted under different keys. However, most MFHE schemes require a Common Random\slash Reference String (CRS), while the few that do not are based on the Learning With Errors (LWE) problem, which means that they can only deal with single bit plaintext. Consequently, MFHE schemes based on the Ring Learning With Errors (RLWE) problem are more desirable, as they can handle polynomial plaintext. Requiring the CRS seems to weaken the semantic definition of MFHE, where all users generate their own keys independently.</p>
<p>In this paper, we study the RLWE-based MFHE in the CRS model and propose the first RLWE-based MFHE without CRS. To this end, we remove the CRS by designing a new relinearization algorithm. Like previous MFHE schemes, our RLWE-based MFHE without CRS has a simple 1-round threshold decryption, which implies a $3$-round secure MPC protocol in the plain model from the RLWE assumption.</p>
Prospective, Retrospective, and Formal Division
Authors: Bergstra Jan Aldert 
Published: October 2022

Division by zero is a controversial theme. Why is division by zero a relevant issue and how can this issue be addressed from different perspectives? Fracterm is used as an abbreviation for fractional expression. Three types of occurrence of the division symbol in a fracterm are distinguished: prospective occurrence, retrospective occurrence, and formal occurrence. Mathematics mostly features retrospective occurrences of division, computer programming gives rise to prospective occurrences, and so does automated proof checking. The use of division in an axiom system may indicate the presence of formal occurrences of division symbols.
Dependence of electrodontometry indicators on the configuration of the root canal
Authors: Petrikas A. Zh. , Chestnyh E. V. , Karpenkov A. Yu. , Larichkin I. O. , Dunaeva G. G. , Medvedev D. V. , Kulikova K. V. 
Published: October 2022

Aim. To assess the dependence of electrodontometry indicators on the configuration of the root canal and to determine the value of the resultant action of the current at which patients have a response to electrodontometry.Materials and methods. The research consisted in the creation of computer models of teeth and their analysis by the finite element method in the COMSOL Multiphysics program. The removed tooth 2.2 was chosen as a prototype for 3D computer models. The tooth was dissected into fragments 2 millimeters thick, from which the geometric parameters of hard tissues and the position of the root canal were removed. Based on these data, a 3D model of the tooth was built. Based on the 2.2 tooth model, 5 models of the same tooth were constructed, simulating the stages of its root formation.Results. In all models, with an increase in the channel width in the apex area from 0.3 mm to 2.55 mm, the current density in this area decreased from 26.92 A/m2 to 0.63 A/m2. The maximum current density in the models was recorded in the narrowest part of the root canal and ranged from 26.01 A/m2 to 26.75 A/m2.Conclusions. The strength of the diagnostic current that causes a response in patients during electrodontometry depends on the configuration of the root canal, namely, on the cross–sectional area in the narrowest part of the root canal, where the maximum current density is recorded. The current density at which patients have a response to electrodontometry is 26-27 A/m2.
Prevalence of dental anomalies in children in the central region of Cameroon
Authors: Kamgang W. , Kosyreva T. F. , Tuturov N. S. , Loginopulo O. V. , Abakeliya K. , Katbeh I. 
Published: October 2022

Aim. To determine the occurrence of dentoalveolar anomalies and to determine the need for orthodontic care among the child population in the central region of Cameroon.Materials and methods. The study was conducted in 1008 children aged 3 to 15 years, including 511 girls and 497 boys. To assess the need for occlusal correction, the Index of Orthodontic Treatment Need (IOTN) was used, and the WHO international chart was filled out to assess the dental status. The use of the epidemiological index, based both on the aesthetic component of malocclusion and on objective clinical signs, made it possible to most reliably identify those in need of treatment.Results. As a result of the study, the average prevalence of dentoalveolar anomalies in children aged 3-15 years old, living in Yaounde, the capital of Cameroon, was 27.9%.Conclusion. The obtained data can be used for science-based planning of medical and preventive treatment.
KEBAYA DAN PURA : IDENTITAS GAYA HIDUP BUDAYA PEREMPUAN BALI DI TOILI
Authors: Triawati Komang 
Published: October 2022

Budaya menjadi kajian menarik dewasa ini, kebaya yang digunakan oleh perempuan bali ketika ke pura menjadi gaya hidup tersendiri di kalangan perempuan Bali di Toili. Perempuan Bali menganggap bahwa cara berpakaian dengan menggunakan kebaya ketika ke pura merupakan hal yang anggun, unik, indah, cantik, menarik bahkan menjadi identitas sendiri serta primadona bagi perempuan Bali masa kini. Budaya menjadi sebuah nilai yang dipandang sebagai pedoman dalam kehidupan masyarakat khususnya perempuan Bali di Toili. Toili sebagai sebuah Kota kecil merupakan ex transmigrasi sekarang menjadi pusat peradaban budaya bali. Peradaban yang dimaksud adalah pendapat yang memiliki nilai terhadap perkembangan kebudayaan. Wisata budaya yang di tonjolkan adalah karya manusia yaitu kebaya. Karya manusia menyeimbangkan keselarasan hidup antara manusia dan manusia, manusia dan alam, manusia dan Tuhan, ketiga hal tersebut menjadi satu kesatuan dalam budaya itu sendiri. Perempuan bali ketika datang ke Pura, dengan berkebaya perempuan bali mampu menjaga keselarasaan, keseimbangan dan gaya hidup yang khas terhadap perempuan bali itu sendiri. Hal ini terlihat dari cara pandang memahami kebaya, kebaya merupakan baju khas bali yang digunakan ke Pura. Pura adalah miniatur Rumah Tuhan, yang di sembah dengan tulus iklhas dan bhakti oleh manusia itu sendiri.
KARAKTERISTIK SPEKTRAL ELEKTROMAGNETIK SPECIES DOMINAN PADA HUTAN RAWA GAMBUT KALIMANTAN TENGAH (Electromagnetic Spectral Characteristics of Dominant Species at the Peat-Swamp Forest at Central Kalimantan)
Authors: JHT Admin 
Published: October 2022

ABSTRACTThis paper reports the results of the spectral library from dominant trees in peat-forest in Central Kalimantan, Indonesia supported under JST-JICA Project: “Wild Fire and Carbon Management in Peat Forest in Indonesia”. Spectral libraries are commonly established as a means to archive representative signatures of natural materials. Such signatures can then be used to train feature extraction and classification algorithms applied to remote sensing data imagery. Spectral analyses were performed to the 33 dominant species in peat-forest in Central Kalimantan, Indonesia obtained during the field survey measurement (in-situ measurements) and airborne campaign by HYMAP sensor in 2011-2014. We found, each vegetation type has unique spectral signature or characteristics. The shapes of reflectance spectra can be used for identification of vegetation types combine with remote sensing data (airborne and satellite images).
Keywords: Spectral library/signature, Peat-Forest, Spectroradiometer, Vegetation and Kalimantan
PEMANFAATAN IJUK DAN LIMBAH PARTIKEL KAYU ALAU SEBAGAI BAHAN BAKU PAPAN PARTIKEL (Utilization of Palm Fibers and Wood Particle Waste of Alau as Particle Board Materials)
Authors: JHT Admin 
Published: October 2022

ABSTRACTParticle board is the multiuse materials that could be used as substitute materials of the solid wood as to review light in weight construction, furniture raw material, etc. Wood particle waste of alau is produced by saw mill or wood furniture as the waste, whereas the palm fibers is produced from non forestry plants of palm that grow well at the peat-swamp lands. This research was aimed to analyze the mixed of palm fibers and wood particle waste of alau to produce the particle board materials. Some combination of treatments were tested to produce the valuable particle board. The research results showed that the exact combination between palm fibers and wood particle waste of alau produced the valuable particle board materials with up to standars of JIS A 5908:2003 for review physical properties. The highest density of particle board and its stability dimension were attained at the moment of the composition between palm fibers and wood particle waste of alau namely 25:75 with glue content namely 40% .
Keywords: palm fibers, particle board, physical properties,waste of alau
POTENSI PEREKAT TANIN FENOL FORMALDEHIDA KULIT KAYU MANGIUM (Potency of Tannin Formaldehyde Adhesive from Acacia mangium Bark)
Authors: JHT Admin 
Published: October 2022

ABSTRACTBark waste of Acacia mangium could to produce the tannin formaldehyde adhesive that useful as material to the wood working industrial. These material are produced from timber estate of Acacia mangium that widely planted in Sumatera and Kalimantan, and also in the other place, because this species is the fast growing species and relatively easy to grow at the marginal site. Acacia mangium bark was predicted 10% of the logs. The study was aimed to determine the quantity of tannin formaldehyde from Acacia mangium bark that could be developed for the adhesive. The study showed that potency of tannins phenol formaldehyde adhesive namely 435.302,35 ton per year. This materials were able to produce the glue namely 1.691,69 million sheets of plywood approximately.
Keywords: Adhesive tannin, bark waste of Acacia mangium, glue
Biodiversitas Jamur Basidiomycetes Untuk Biobanking Di Kecamatan BanamaTingang Kabupaten Pulang Pisau Kalimantan Tengah
Authors: JHT Admin 
Published: October 2022

ABSTRAK Pengetahuan masyarakat lokal akan pemanfaatan jamur baik sebagai jamur obat maupun jamur pangan masih belum memadai serta informasi yang berkaitan dengan pemanfaatan jamur masih dirasakan kurang sehingga potensi jamur yang seharusnya dapat mendukung peningkatan kesejahteraan hidup juga tidak dapat dirasakan oleh masyarakat. Tujuan penelitian ini adalah mengetahui keragaman jenis jamur Basidiomycota yang berpotensi sebagai jamur obat serta jamur yang dapat dikonsumsi (bahan pangan) bagi masyarakat lokal. Metode yang digunakan dalam penelitian ini adalah dengan melakukan orientasi lapangan dan penentuan lokasi penelitian kemudian membuat plot penelitian dengan ukuran plot 200 x 150 m atau 3 ha sebanyak satu 1 buah. Pada plot tersebut dibuat jalur pengamatan jamur sebanyak 8 jalur, jarak antar jalur adalah 5 m dan lebar jalur 20 m. Plot penelitian ini dibuat di masing-masing desa lokasi penelitian. Selanjutnya dilakukan eksplorasi jenis jamur, koleksi dan identifikasi jenis jamur yang terdapat di hutan alam di kedua desa serta melakukan wawancara dengan masyarakat lokal mengenai pengenalan dan pemanfatan jamur. Hasil penelitian diperoleh 7 famili dan 46 jenis jamur Badisiomycetes di hutan alam desa Bawan, jamur yang dominan adalah Ganoderma sp dari famili Ganodermataceae sedangkan di desa Ramang ditemukan 8 famili dan 36 jenis jamur Basidiomycetes dengan jamur yang mendominasi adalah jenis Trametes versicolor dari famili Polyporaceae. Berdasarkan informasi dari masyarakat lokal tidak banyak ditemukan jenis jamur pangan dan jamur yang dapat dimanfaatkan sebagai obat. Terdapat 2 jenis yang sering dikonsumsi oleh masyarakat local yaitu jamur kuping (Auricularia delicate) dan jamur tiram (Pleurotus sp.) serta jamur yang dapat digunakan sebagai obat adalah jamur Ganoderma lucidum, sementara jenis jamur lain yang ditemukan sebagian belum dapat diidentifikasi, namun sebagian lagi termasuk jamur parasit dan jamur beracun.
Kata kunci: Biodiversitas, Basidiomycetes, Biobanking
ANALISIS FINANSIAL HUTAN RAKYAT DI KECAMATAN JABIREN RAYA KABUPATEN PULANG PISAU KALIMANTAN TENGAH
Authors: JHT Admin 
Published: October 2022

ABSTRACK One of some methods to conserve the peat forest species is increasing the local peoples income. In order that the research regarding financial and economic analyzis of forest community at the peat forest is significant needed. The aim of this research was to know the benefit of forest community project that be developed at the Jabiren Raya, Pulang Pisau District, Central Kalimantan Province. The research was done using interview agree with list of questioner and literature study. Research result showed that cultivation of Dyre lowii and Hevea brasiliensis are profitable with NPV and BCR namely IDR 67.5 mill and 1.36, 31.4 mill and 1.19, and 5.5 mill and 1.04 per ha at the bank rate of 13%, 15%, and 17% respectively. Profitable of IRR namely 18% bigger than social bank rate.
Keynotes: Dyre lowii, Financial, forest community, Hevea brasiliensis
PENDUGAAN KARBON TERSIMPAN TEGAKAN AKASIA (Acasia mangium Wild.) UMUR 10 TAHUN DI HUTAN TANAMAN INDUSTRI PT KORINTIGA HUTANI, PROVINSI KALIMANTAN TENGAH
Authors: JHT Admin 
Published: October 2022

ABSTRACT Forest role as climate stabilizer may be realized due to its ability to control world climate change caused by the rising concentrations of greenhouse gases. Carbon dioxide (CO2) is one of greenhouse gas with very rapid increase in its concentration. An effort has been taken to suppress the increase in CO2 is by controlling the concentration of carbon through advancement of carbon absorption program, where organic carbon as a result of photosynthesis will be stored in the biomass of forest stands or woody trees. Acacia (Acacia mangium Wild.) is one of fast growing species and is often used as a staple crop in forest plantation (HTI). The purpose of this study is to determine the potential of carbon stock by diameter class, predict carbon stocks and aerial CO2 absorption by Acacia trees in forest plantation area of PT Korintiga Hutani, Lamandau District, Central Kalimantan Province. The study was carried out in PT Korintiga Hutani plantation forest and took Acacia stands aged years as its object. Biomass measurement of Acacia stands was done indirectly using allometric formula proposed, whereas biomass of under the plant, woody and litter necromass was allegedly using the direct method. Carbon of Acacia stands, woody necromass, undergrowth and litter were determined using the formula, where 46% of biomass is carbon content. Lastly, the amount of carbon dioxide absorbed by Acacia stands was predicted using the formula. The results show that the average carbon stock by diameter class of Acacia stands aged 10 years are 109.66 tons/ha, respectively. Carbon stocks of undergrowth, woody necromasa and litter on the location of Acacia stands aged 10 years are 1.42 tons/ha, 0.15 tons/ha and 3.00 tons/ha, respectively. Total carbon stocks on the location of Acacia stands aged 10 years are 114.23 tons/ha. In the meantime, CO2 absorbability of Acacia stands aged 10 years amounted to 402.46 tons/ha with the rate of CO2 uptake increased by 40.25 tones/ha/year, respectively.
Keywords: Acacia stands, carbon stock, forest plantation, carbon dioxide.
ANALISIS POTENSI POHON DI AREAL BEKAS TEBANGAN PT PUTRA KATINGAN PRATAMA DI KABUPATEN KATINGAN
Authors: JHT Admin 
Published: October 2022

ABSTRACT Production forest management in Indonesia was developed using a pattern of forest concession since 70’s. Based on regulation of Ministry of Forestry No.11/2009, the silvicultural systems that be applied at the site were Indonesian Selective Cutting and Planting (TPTI), Selective Cutting and Strips Planting (TPTJ), Gap Cutting (Tebang Rumpang), and Clear Cutting with Artificial Regeneration (THPB). In connection with that, there are activities of timber, cruising 2-5% in the working areas of PT. Pratama Putra Katingan to obtain details about the condition of standing stock at the forest. They are conducted every 10 years. The observation results of commercial standing stock for diameter ? 20 cm namely 45.20 stems/ha and volume of 19.65 m3/ha, meanwhile the total standing stock of forest namely 72.70 stems/ha and volume of 40.75 m3/ha.
Keywords: Commercial species forest concenssion, standing stock
ANALISIS PERTUMBUHAN DAN FINANSIAL TANAMAN SUNGKAI (Peronema canescens) DI KAPUAS, KALIMANTAN TENGAH
Authors: JHT Admin 
Published: October 2022

ABSTRACT Forestry concession conduct the plantation project at the logged over areas using TPTI silvicultural system. The aim of this research was to analyze the growth and financial value of sungkai (Peronema canescens) that be planted at the logged over areas of PT Gunung Meranti at the Kapuas, Central Kalimantan Province, using TPTI silvicultural system. The research analyzed of 100 samples of sungkai and it analysed of its growth until 13 years old and estimate of financial value until 40 years old at the future with loan interest assumption 19,5% and 16%, expense increase 10%, price decrease 10% and the form factor 0,6. The living percentage of sungkai at the 13 years old namely 89,7%. Mean Annual Increment (MAI) namely 11,90 m3/ha/year, and the best financial cycle for the worker of wood company class namely 13 to 25 years.
Keywords: Analyze, financial, growth, Peronema canescens
KARAKTERISTIK DAN ANALISIS FITOKIMIA TUMBUHAN OBAT DARI DESA NATAI SEDAWAK KABUPATEN SUKAMARA KALIMANTAN TENGAH
Authors: JHT Admin 
Published: October 2022

ABSTRACK Patterns of community life tend to back to nature including the drugs utilization. They generally use medicinal plants (roots, stems, leaves, flowers, fruits and seeds) without knowing its active chemical compounds and partly morphologically unfamiliar also. This research was conducted to identify the characteristics of medicinal plants (general, environment, habitat and morphology of medicinal plants) through observation in the field and to know the content of active compounds (secondary metabolites) prosfective medicinal plants that be used by the community of Natai Sedawak Village by doing phytochemical testing in laboratory. Data analysis is done descriptively qualitative and quantitative in the form of tabulation and picture. The results of observation showed that the characteristics of medicinal plants in Natai Sedawak village are tree, shrub, herb (terna) and liana, with single and compound leaf composition, cylindrical trunks except tapus and Loranthus sp. They grow in swamp forest with altitude namely 17 to 25 meters above sea level and soil pH between 2.60 to 3.85. Based on the results of phytochemical analysis, medicinal plants contained secondary metabolite compounds that consisting tannin (polifenol), alkaloid, saponin, flavonoids, steroids and terpenoids that scattered in plant organs as at the roots, stems, leaves, and fruit.
Keywords : Drug growth, phytochemical analysis, Natai Sedawak Village.
ANALISIS FINANSIAL REHABILITASI AREAL EKS IUPHHK-HA PT KALANG MURNI DI PROVINSI KALIMANTAN TENGAH
Authors: JHT Admin 
Published: October 2022

ABSTRACK Production forest management in Indonesia had been developed using a pattern of forest concessions (IUPHHK) since 1970s. In the development portion has ended a period of concession for 20 years. Forest areas that are not burdened the forest concessions or other rights, then the management is partly handed back to the goverment, and some management handed over by other appliances as Timber Utilization Permit (IPK). In connection with that carried a 0,3% timber cruising activities in the work areas of PT. ? Kalang Murni to obtain details about the condition of the standing stock. According on the analysis results, the standing stock of commercial trees in the group of diameter ? 20 cm contain average number of 25.5 stems/ha and average volume of 15.69 m3/ha, and the standing stock of other timber in the group of diameter ? 20 cm contain average number of 27.3 m3/ha, and average volume of 20.57 m3/ha. With the result that the total standing stock of the tress at the secondary forest of PT. Kalang Murni contain average number of 52.8 stems/ha and and average volume of 36,26 m3 / ha. According to the financial analysis, the Indonesia Strip Cutting and Planting (TJTI) system is suitable applied at the site when the interest rate in the position of 18%, whereas the Clear Cutting and Artificial Regeneration (THPB) system is not suitable at the same of interest rate.
Keyword: Financial, forest concession, secondary forest, standing stock
EFEKTIVITAS MICROCIDE 100/100 EC TERHADAP SERANGAN JAMUR BIRU PADA KAYU KARET (Hevea brasiliensis Muell.Arg.) (Effectiveness of Microcide 100/100 EC to Restrain Blue Mushroom Attack on the Rubber Wood (Hevea brasiliensis Muell.Arg.)
Authors: JHT Admin 
Published: October 2022

ABSTRACT The objectives of this research are to know the value of adsorption and the influence of microcide using dyeing method against the intensity of blue mushroom attack on the rubber wood (Hevea brasiliensis Muell.Arg.) in the axial direction, the base (P), the middle (T) and the end (U). The expected benefit is to be an input in finding alternative use of preservative composition that is able to suppress the growth rate of blue mushroom so as to improve the quality of rubber wood usage. The results showed that the value of microcide preservative adsorption on wood has a tendency of increasing value with increasing concentration of microcide preservative and largest in the concentration of 1% Microcide preservative by 2.11 g/cm2. The calculation result of the intensity of blue mushroom attack on rubber wood at Microcide concentration of 1% is 5,53% including the classification is not meaningful, so it is effective to prevent blue fungus attack. The result of the measurement of the decrease of the rubber wood water content per week has a tendency of decreasing value from week I to week V. The decrease of the water content of timber that occurs almost uniformly for each level of Microcide concentration per week, so that in week V the water content of wood ranges from 18% - 19, 73%. The fresh water content of rubber wood used in this research ranged 61.34% - 84.67%, with the condition of the water content allows the fungal attack on rubber wood. The intensity of blue mushroom attack between week I - IV at moisture content between 69,16% - 27,50% shows optimum blue fungus growth, while under condition of fiber saturation point entering week V (18,86%) mushroom growth value is very small. Further research on the preservation of rubber wood by dipping method using Microcide EC preservative on wood resistance to other types of fungi.
Keywords: Adsorption value, attack intensity, microcide, rubber wood.