A Tensor-Based Formulation of Hetero-Functional Graph Theory

Recently, hetero-functional graph theory (HFGT) has developed as a means to mathematically model the structure of large-scale complex flexible engineering systems. It does so by fusing concepts from network science and model-based systems engineering (MBSE). For the former, it utilizes multiple graph-based data structures to support a matrix-based quantitative analysis. For the latter, HFGT inherits the heterogeneity of conceptual and ontological constructs found in model-based systems engineering including system form, system function, and system concept. These diverse conceptual constructs indicate multi-dimensional rather than two-dimensional relationships. This paper provides the first tensor-based treatment of hetero-functional graph theory. In particular, it addresses the “system concept” and the hetero-functional adjacency matrix from the perspective of tensors and introduces the hetero-functional incidence tensor as a new data structure. The tensor-based formulation described in this work makes a stronger tie between HFGT and its ontological foundations in MBSE. Finally, the tensor-based formulation facilitates several analytical results that provide an understanding of the relationships between HFGT and multi-layer networks.

PELESTARIAN BUDAYA BALI DALAM ARSITEKTUR TAPAK DAN RESTORAN ARUNA RESORT TEJAPRANA TEGALALANG UBUD – BALI

Revealing the conservation of Balinese culture forms in the architecture of Site and Aruna Restaurant of Tejaprana resort uses architectural phenomenological approach. The Balinese Culture’s physical-social system is expressed through sensory presence, conceptual systems through goal awareness, and the philosophy through essence awareness. The setting extends from the North-South direction, the Aruna restaurant surrounded by garden in the middle of the site and a temple in the North, preserving the principles of the Balinese Traditional Village setting. The essence of the site order is harmony with the local natural philosophy. Social activities surrounded by gardens in the middle of the site and temple in North form a harmonious-balanced human-nature-God relationship philosophy. The openness of Aruna restaurant is similar to Wantilan's architecture, but with different shape. The pool at the center of the floor and the eight columns around it symbolizes the "natural balance" of the Nawa Sanga concept. The essence of Aruna restaurant is local natural harmony philosophy and spiritual relations, forming a harmonious-balanced human-nature-God relationship philosophy. The principles of traditional village arrangements, Balinese cultural social system, concept of natural balance, bale Wantilan principle, Nawa Sanga concept, Tri Hita Karana philosophy are preserved in the site and Aruna restaurant.).Abstrak: Pengungkapan wujud-wujud Budaya Bali dalam arsitektur Tatanan Tapak dan Restoran Aruna resort Tejaprana dan pelestariannya menggunakan pendekatan fenomenologis arsitektur. Sistem fisik-sosial Budaya Bali diungkap melalui kehadiran inderawi, sistem konsep melalui kesadaran tujuan, dan filosofi melalui kesadaran esensi. Tatanan tapak memanjang arah Utara-Selatan, restoran Aruna dikelilingi taman di tengah tapak dan Pura di Utaranya, melestarikan prinsip tatanan tapak Desa Tradisional Bali, berikut sistem sosial Budaya Bali. Tatanan tapak membentuk Keseimbangan Alam konsep Catur Lokapala. Esensi tatanan tapak adalah keharmonisan-keselarasan dengan alam setempat filosofi Manik Ring Cucupu. Aktivitas sosial dikelilingi taman di tengah tapak dan ibadah di Utaranya membentuk relasi harmonis-seimbang manusia-alam-Tuhan filosofi Tri Hita Karana. Restoran Aruna bersosok terbuka, atapnya bersusun mirip arsitektur Wantilan, namun bentuknya kerucut berlantai dua. Kolam di pusat lantai dan delapan kolom sekelilingnya searah mata angin simbol ‘keseimbangan alam’ konsep Nawa Sanga, memperlihatkan sistem sosial Budaya Bali. Esensi restoran Aruna adalah keharmonisan-keselarasan alam setempat (filosofi Manik Ring Cucupu) dan relasi spiritual, sehingga membentuk relasi harmonis-seimbang manusia-alam-Tuhan (filosofi Tri Hita Karana). Prinsip tatanan desa tradisional, sistem sosial Budaya Bali, konsep keseimbangan alam, prinsip bale Wantilan, konsep Nawa Sanga, filosofi Tri Hita Karana dilestarikan pada tapak dan restoran Aruna.

A Universal Cassette-Based System for the Dissolution of Solid Targets

Cyclotron-based radionuclides production by using solid targets has become important in the last years due to the growing demand of radiometals, e.g., 68Ga, 89Zr, 43/47Sc, and 52/54Mn. This shifted the focus on solid target management, where the first fundamental step of the radiochemical processing is the target dissolution. Currently, this step is generally performed with commercial or home-made modules separated from the following purification/radiolabelling modules. The aim of this work is the realization of a flexible solid target dissolution system to be easily installed on commercial cassette-based synthesis modules. This would offer a complete target processing and radiopharmaceutical synthesis performable in a single module continuously. The presented solid target dissolution system concept relies on an open-bottomed vial positioned upon a target coin. In particular, the idea is to use the movement mechanism of a syringe pump to position the vial up and down on the target, and to exploit the heater/cooler reactor of the module as a target holder. All the steps can be remotely controlled and are incorporated in the cassette manifold together with the purification and radiolabelling steps. The performance of the device was tested by processing three different irradiated targets under different dissolution conditions.

Study of occupants’ perceptions and preferences of smart home system technology at The Eastern Green-LRT City Bekasi Apartment

The development of technology over the time is increasing rapidly in various fields including in the field of property that applies smart home system. During the Covid 19 Pandemic, residential with smart home system concept deserves to be an option because it can provide convenience for residents in activities and work by arranging electronic devices such as air conditioning, televisions, lights, access in and out of residence. One of them is The Eastern Green LRT City Bekasi Apartment which is a residence with the concept of smart home system. Apart from the purpose of knowing perception and preference of residents to smart home system in Eastern Green-LRT City Bekasi Apartment, there are certainly still weaknesses that are also a consideration for improvement so that smart home system is able to facilitate residents to improve the comfort of residents. This research uses quantitative method by collecting data through survey. The results showed there are several things that need to be useful evaluation materials to improve smart home system. It is expected that this article can provide feedback to realize a more comfortable residence based on smart home system in welcoming the era of society 5.0 and the new normal era.

HUBUNGAN SELF CONFIDENCE DENGAN KEMAMPUAN BERPIKIR KRITIS PESERTA DIDIK PADA MATERI SISTEM RESPIRASI

The material that supports the critical thinking process is the respiratory system concept, but students have difficulty answering questions about the respiratory system concept related to everyday life. This study aims to determine the correlation between self-confidence and students' critical thinking skills on the respiratory system matel. The research method used is a correlational study. The population in this research is all class XI MIPA SMA Negeri 9 Tasikmalaya. Sampling was carried out using a purposive sampling technique of 2 classes, namely XI MIPA 1 and XI MIPA 3. The data analysis technique used was a bivariate correlation regression test with 0,05. Based on the results of the study, shows that there is a correlation between self-confidence and students' critical thinking skills on the material of the respiratory system with a correlation coefficient (R) of 0,454 and a coefficient of determination (R2) of 0,207. So that the contribution of self-confidence to critical thinking skills is 20,7% and the rest is influenced by other factors not examined.