A5030672397- Plant and animal studies
- Plant and Fungal Species Descriptions
- Fern and Epiphyte Biology
- Plant Diversity and Evolution
- Forest Ecology and Conservation
- Plant Growth and Agriculture Techniques
- Pacific and Southeast Asian Studies
- Ecology and Vegetation Dynamics Studies
- GABA and Rice Research
- Engineering and Technology Innovations
- Plant Parasitism and Resistance
- Biological and pharmacological studies of plants
- Energy Harvesting in Wireless Networks
- Genetic diversity and population structure
- Island Studies and Pacific Affairs
- Species Distribution and Climate Change
- Wireless Power Transfer Systems
- Food and Agricultural Sciences
- Forest ecology and management
- Power Systems Fault Detection
- Botany, Ecology, and Taxonomy Studies
- Agricultural Development and Management
- Power Transformer Diagnostics and Insulation
- Climate Change, Adaptation, Migration
- Fire Detection and Safety Systems
State University of Malang
2022-2024
National Research and Innovation Agency
2023-2024
Indonesian Institute of Sciences
2009-2021
University of Chinese Academy of Sciences
2020
Badan Penelitian dan Pengembangan Kesehatan
2020
Muhammadiyah University of Yogyakarta
2019
Center for Systems Biology
2018
University of Technology Malaysia
2009
Abstract Aim Gondwanan vicariance, boreotropical migration and long‐distance dispersal have been posited as alternative hypotheses explaining the tropical distribution patterns diversifications in many fern groups. Here, historical biogeography of Diplazium is reconstructed to evaluate impact these biogeographical processes shaping modern disjunctions. Location World‐wide with a focus on forest habitats. Methods Divergence times were estimated by analysing nucleotide sequences seven plastid...
ABSTRACT Aim The aim of this study was to investigate whether the equilibrium theory island biogeography ( ETIB ) is equally applicable at regional and local spatial scales, ‘echo pattern’, correlation between species pool diversity by which ‘trickles down’ influences across a range sampling scales. Location Twelve mountain regions on islands having different sizes, degrees isolation environmental conditions in Indonesia Philippines. Methods We sampled ferns standardized field plots within...
We investigated if an increase in species pool size leads to more pronounced turnover local communities and assessed this relates stronger competition for environmental niches or random placement of species. compared compositional pteridophytes (ferns lycophytes) at 15 sites mountain ecosystems on 13 islands southeast Asia Melanesia that mainly differed the their pool. Each site was sampled with 16 plots 20 × m 2 . Using multiple regression distance matrices, we relationship between...
Tropical forests occupy small coral atolls to the vast Amazon basin. They occur across bioregions with different geological and climatic history. Differences in area bioregional history shape species immigration, extinction diversification. How this effects local diversity is unclear. The Indonesian archipelago hosts thousands of tree whose coexistence should depend upon these factors. Using a novel dataset 215 forest plots, fifteen islands ranging from 120 785 000 km 2 , we apply Gaussian...
This paper presents a wireless system for monitoring the input and output of array in photovoltaic generation plant. The comprises sensors, data acquisition system, access point user computer that enable users to parameter wirelessly. Description function set up equipment are presented as well application program supports system.
This paper presents the design and simulation of an infrared emitter driver circuit for MILES (Multiple Integrated Laser Engagement System) application. The aims to efficiently drive a high-power IR emitter, maximizing output power while maintaining compatibility with low-power embedded systems (e.g., ESP32). Key considerations include selection appropriate diode topology (utilizing push-pull amplifier low-side MOSFET fast switching), pulse shaping techniques optimize rise fall times,...
Davallia repens and its close relatives have been identified as a species complex in this study because of the existence continuously morphological variation. To decipher evolutionary history, integrated methodologies were applied including morphology, cytology, reproductive biology molecular phylogeny. Analysis characters reveals several important discriminating characteristics, such shape stipe scales, frond indusium. Both diploid polyploid forms are present reproduce sexually by apogamy,...
The morphologically variable tree fern Alsophila hornei of the Gymnosphaera clade is taxonomically and ecologically evaluated. While there only one morphospecies present at type locality on Fiji, three species can be characterized along an elevational transect New Guinea. also low elevations throughout phlebodes newly described so far found high Vogelkop Peninsula Among its sympatric congeners, it stands out by having relatively pale brown petiole scales well-developed, highly dissected...
A new species, Bulbophyllum papuaense, was described and illustrated from Indonesia. papuaense is similar to tortuosum B. muscohaerens but differs them by having rhizome pseudobulbs covered with papillose scales, caudate ciliate petals, linear lip.
Gastrodia Brown (1810: 330) is a mycoheterotrophic genus of Orchidaceae that consists ca. 50 species (Tan et al. 2012, Suetsugu 2014, Huang 2015). It characterized by fleshy tuber or coralloid root system, fused sepals and petals, two mealy pollinia without caudicles. Since most have completely observation the perianth difficult, identification this often imprecise. As result re-examination floral characters, several new taxa in been reported China, Taiwan, Japan, Madagascar other countries...
Abstract Monachosorum arakii Tagawa is a plant species endemic to the western part of main island Japan. It characterized by large bulbils on rachises and close relative M. henryi Christ, which can be found in Sino-Himalayan region not present Although was reported hexaploid, we determined that it pentaploid based chromosome counts. All herbarium specimens examined, including holotype, had irregularly shaped spores, suggesting this sterile hybrid species. Analysis nuclear gapCp sequences...
Strobilanthes cernua Bl. (Acanthaceae) has been generally recognized to flower every nine years. However, no mechanism is known for its plietesial flowering, i.e., pluriannual and monocarpic flowering with a period of several (or sometimes decades) To know how this species determines the year under mountain forest in wet tropics, we cultivated seedling clonal propagates artificial growth conditions until flowering. One individual started controlled culture room seven years after germination;...
Two important parts of wireless power transfer are transmitter circuit and receiver circuit. Previous research has been completed which use CMOS H-Bridge in full wave rectifier receiver. This paper presented simple design optimization with transient analysis Fast Fourier Transform (FFT) from LT spice software. The used an integrated (IC) NE555 push-pull as oscillator LC resonant, while the circuit, CLC filter for smoothing direct current (DC) output 500 Ohm load. had resonant frequency 250...
Insulation of the transformer is one essential components. So that quality resistance in isolation to note condition, order find out condition isolation, several tests must be performed, namely polarization index, delta tangent, and break down voltage. In this study, all three were carried on Transformer 1 150 kV Bantul substation. Polarization index testing itself leakage current by comparing test results for minute with 10-minute drive test. While tangent capacitive transformer, voltage a...
Abstract Energy needs in Indonesia are increasing and have inverse impacts on the source production of energy itself. One effort that can be done to overcome this problem is use biomass sources, especially for home industries people surrounding forests. This research aims describe perceptions farmers, as potential workers, about development Calliandra calothyrsus Meisner wood demonstration plot. The Focus Group Discussion (FGD) was conducted Parungpanjang forest. Qualitative content analysis...
Kedawung is a member of the plant genus Parkia (Mimosaceae). It has important value as traditional medicine and currently been included in Indonesian list endangered medicinal species. There are two closely related species to Java: P. intermedia speciosa. long assumed be hybrid between speciosa timoriana. The leaflets linear-oblong obtuse apex mature foliage resemble speciosa, but more numerous leaflets, linear-falcate, acute its juvenile similar Thus Hopkins (1992) Petir uncertain aim this...
Perancangan untuk pemodelan dan identifikasi sistem pengaturan merupakan aspek penting dalam pengembangan kontroler motor DC guna mencapai kecepatan yang optimal. Penelitian ini bertujuan menginvestigasi metode-metode efektif serta menerapkan kontrol Proporsional-Integral-Derivative (PID) mengatur DC. Pendekatan diharapkan dapat meningkatkan performa berbagai aplikasi. Pemodelan dilakukan memahami karakteristik dinamisnya, sedangkan parameter mengestimasi parameter-parameter mempengaruhi...
Efisiensi produksi dalam industri keramik telah menjadi fokus utama beberapa tahun terakhir. Salah satu tahap krusial proses adalah pencampuran bahan glasir, yang berdampak signifikan terhadap kualitas warna dan tekstur hasil akhir keramik. Penelitian ini bertujuan untuk meningkatkan efisiensi akurasi glasir di melalui penggunaan trafo getar sebagai penggerak mekanik. Trafo digunakan menghasilkan getaran dengan frekuensi tinggi membantu mendistribusikan secara lebih merata, sehingga...
In land law, the word ‘land’ is used in a juridical sense, as an understanding that has been given official limitation by UUPA. Article 4 states sense surface of earth. Many things need to be considered sale and purchase transactions, one which obligation made by/and sign deed front Notary/PPAT so transfer becomes legal certainty While Notary regulated Law No. 30 2004, it stated public officials are authorised make authentic deeds other authorities referred this Law. The purpose activity...