1,713 research outputs found
S-Restricted Compositions Revisited
No full textAn S-restricted composition of a positive integer n is an ordered partition
of n where each summand is drawn from a given subset S of positive integers.
There are various problems regarding such compositions which have received
attention in recent years. This paper is an attempt at finding a closed- form
formula for the number of S-restricted compositions of n. To do so, we reduce
the problem to finding solutions to corresponding so-called interpreters which
are linear homogeneous recurrence relations with constant coefficients. Then,
we reduce interpreters to Diophantine equations. Such equations are not in
general solvable. Thus, we restrict our attention to those S-restricted
composition problems whose interpreters have a small number of coefficients,
thereby leading to solvable Diophantine equations. The formalism developed is
then used to study the integer sequences related to some well-known cases of
the S-restricted composition problem
Az Zaban-e Modari : Raqs-e Aab Raqs-e Setareh
No full textCatalogue of an exhibition held at SASA Gallery, Adelaide, 14 September-15 October 2010."All that I do, all that I am, all that I love and all that I resist are from my mother tongue. My encounter with these notions is the reflection of a sensibility
that is hope, arising from Persian mysticism and Bahai literature, to give a tone of optimism towards universal human values where resistance, equity, love, being, beauty and truth are implemented to deal with history and explore issues pertaining to the human condition - Siamak Fallah."--SASA Gallery website
Effects of Macronutrients on the Growth, Essential Oil Production and Quality of Echinophora platyloba (DC.) in Natural Ecosystems
No full textEchinophora platyloba DC. (Apiaceae) is recognized for its important secondary metabolites and antifungal agents. To evaluate the effects of macronutrient fertilizers on the growth parameters and essential oils yield of E. platyloba, a study was conducted in 2018 at Shahrekord University, Iran. The treatments included the individual and combined application of nitrogen, phosphorus, and potassium, along with control groups. The results revealed that nitrogen application significantly influenced biomass accumulation in stems, leaves, and inflorescences, with phosphorus-treated plants showing a notable increase in leaf weight. Compared to a positive control, phosphorus increased the essential oil yield by 488%, while nitrogen enhanced biomass accumulation by 165%. The primary compounds identified included (E)-β-ocimene, (E)-sesquilavandolol, and β-pinene, with percentages ranging between 21.3–32.1%, 14.1–42.0%, and 2.0–8.8%, respectively. The levels of β-pinene, (E)-β-ocimene, γ-decalactone, and spathulenol were found to be higher in the phosphorus and potassium treatments than in nitrogen. In contrast, limonene, linalool, geraniol, and (E)-sesquilavandulol concentrations were greater in the nitrogen treatment compared with phosphorus and potassium treatments. In conclusion, phosphorus fertilization can substantially increase the essential oil yield in E. platyloba compared to other treatments, potentially enhancing production per unit area, which supports farmers’ income and helps prevent the degradation of this species in natural habitats
A novel robust optimal active control of vehicle suspension systems
No full text© IFAC.Using Lyapunov theory, Pontryagin's minimum principle, and affine quadratic stability, a novel robust optimal control strategy is developed for active suspension systems to enhance vehicle ride comfort and handling performance. The controller has a simple structure, making its suitable for real-time implementation. The required sensor configuration includes a six-axis IMU and four LVDTs. The proposed controller is suitable for on-road commercial vehicles where ride comfort over bump disturbances and handling performance are the most concerns. The effectiveness of the controller is verified through simulation results using IPG CarMaker software
Optimizing Hyssop (Hyssopus officinalis L.) Cultivation: Effects of Different Manures on Plant Growth and Essential Oil Yield
No full textUsing animal manure in organic systems can improve the quality of agricultural products, especially medicinal plants. In this study, the impact of different types and levels of animal manures on hyssop plant biomass and essential oil yield and profile was assessed. Three supply levels (Low, Medium, and High) were tested for poultry (Np), sheep (Ns), and cattle (Nc) manures. Through GC-MS and GC-FID analysis, 24 chemical constituents were identified in the hyssop essential oil, accounting for 93.7–97.8% of the total composition. The Medium-Nc and High-Np treatments had essential oil content ranging from 0.98% to 1.45%, significantly different from the control treatment at 1.17%. Essential oil yield in Low-Np, Medium-Np, and High-Np was 47.5, 53.8, and 49.2 kg ha−1, respectively, showing increases of 42.5%, 61.6%, and 47.7% compared to the control. Medium-Nc and High-Nc treatments had the most potent antioxidant properties compared to the control. Different amounts of poultry, sheep, and cattle manures led to distinct differences in essential oil compounds, categorizing the manure treatments into three groups. Medium-Np had 44% more air-dried biomass than the control, while no significant difference was found in air-dried herbal product levels among sheep and cattle manures. Taken together, farmers focusing on biomass and essential oil should opt for Medium poultry manure. The pharmaceutical industry should explore other fertilizer options based on secondary metabolite needs
DAMPAK MANAQIB TERHADAP PENINGKATAN IBADAH (Studi Kasus Pada Santriwan dan Santriwati Pondok Pesantren Bustanul Fallah, Kelurahan Palapa, Kecamatan Tanjung Karang Pusat, Kota Bandar Lampung)
No full textABSTRAK
Dzikir Manaqib merupakan salah satu wujud kegiatan keagamaan yang
dilakukan masyarakat muslim, yang pada akhirnya menjadi sebuah rutinitas
ritual pada momen-momen tertentu yang merupakan proses akulturasi antara
budaya lokal dengan Islam. Yang dimaksud dengan manaqib secara istilah
adalah membaca kisah tentang orang-orang sholeh, seperti kisah Nabi atau
Auliya’ (para kekasih Allah) dengan tujuan meneladani akhlak terpuji mereka
dan ditulis dengan menggunakan bahasa yang sangat indah dengan susunan
kalimatnya yang benar-benar indah.
Rumusan masalah dalam penelitian ini: 1) Bagaimana Proses
Pelaksanaan Manaqib Dalam Peningkatan Ibadah Para Santriwan/santriwati
Pondok Pesantren Bustanul Fallah, Kelurahan Palapa, Keceamatan Tanjung
Karang Pusat, Kota Bandar Lampung. 2) Bagaimana Dampak Manaqib
Dalam Peningkatan Ibadah Para Santriwan/santriwati Pondok Pesantren
Bustanul Fallah, Kelurahan Palapa, Kecamatan Tanjung Karang Pusat, Kota
Bandar Lampung. Dan tujuan penelitian ini adalah untuk mengetahui Proses
Pelaksanaan Manaqib Dalam Peningkatan Ibadah Para Santriwan/santriwati
Pondok Pesantren Bustanul Fallah, Kelurahan Palapa, Keceamatan Tanjung
Karang Pusat, Kota Bandar Lampung. Dan untuk Dampak Manaqib Dalam
Peningkatan Ibadah Para Santriwan/santriwati Pondok Pesantren Bustanul
Fallah.
Jenis penelitian yang digunakan penulis adalah field research (penelitian
lapangan) dan sifatnya kualitatif deskriptif. Sumber Data Penelitian data
primer dan data sekunder, dengan teknik pengumpulan data menggunakan
observasi,wawancara, dan dokumentasi. Lokasi penelitian ini di Pondok
Pesantren Bustanul Fallah terletak di Jl. Darabirra Lampung, Palapa,
Kecamatan Tanjung Karang Pusat, Kota Bandar Lampung.
Hasil Penelitian ini bahwa proses pelaksanaan manaqib dalam
meningkatkan ibadah para santriwan dan santriwati Pondok pesantren
bustanul fallah kelurahan palapa, Kecamatan Tanjungkarang Pusat, Kota
Bandarlampung yaitu: Semaan Al-quran, Shalat tasbih dan shalat hajat,
Pembacaan manaqib syekh abdul qodir al-jailani, Pemberian motivasi,
Perjalinan hubungan, Penyelenggaraan komunikasi dan Pengembangan dan
peningkatan pelaksanaan manaqib. Dan dampak manaqib dalam
meningkatkan ibadah para santriwan dan santriwati Pondok pesantren
bustanul fallah kelurahan palapa, Kecamatan Tanjungkarang Pusat, Kota
Bandarlampung bahwa manaqib membawa dampak positif bagi santriwan
dan santriwati di pondok pesantren bustanul fallah, hal ini dikarenakan
bahwa sebelum santriwan dan santriwati menempuh pendidikan di pondok
pesantren tersebut mereka cenderung bermalas-malasan dalam beribadah,
namun setelah rutih melakukan kegiatan manaqib terjadi peningkatan ibadah
santriwan dan santriwati. Hal ini dibuktikan dengan perubahan sikap sehari
hari oleh 25 santriwan dan santriwati setelah melakukan kegiatan manaqib
rutin.
Kata Kunci: Manaqib, Syekh Abdul Qodir Al-Jailani, Peningkatan Ibadah
ABSTRACT
Dhikr Manaqib is a form of religious activity carried out by the Muslim
community, which in the end becomes a ritual routine at certain moments
which is a process of acculturation between local culture and Islam. What is
meant by manaqib in terms is reading stories about pious people, such as the
story of the Prophet or Auliya '(lovers of Allah) with the aim of imitating
their commendable character and written using very beautiful language with
really beautiful sentence structures.
The formulation of the problem in this study: 1) How is the Process of
Implementing Manaqib in Improving Worship for Santriwan/students at the
Bustanul Fallah Islamic Boarding School, Palapa Village, Tanjung Karang
Pusat District, Bandar Lampung City. 2) What is the Impact of Manaqib in
Increasing the Worship of Santriwan/students at the Bustanul Fallah Islamic
Boarding School, Palapa Village, Tanjung Karang Pusat District, Bandar
Lampung City. And the purpose of this study was to find out the process of
implementing Manaqib in improving the worship of students at the Bustanul
Fallah Islamic Boarding School, Palapa Village, Tanjung Karang Pusat
District, Bandar Lampung City. And for the impact of Manaqib in Increasing
the Worship of the Santriwan/students of the Bustanul Fallah Islamic
Boarding School.
The type of research used by the author is field research and is
qualitatively descriptive. Sources of Data Research primary data and
secondary data, with data collection techniques using observation,
interviews, and documentation. The location of this research at the Bustanul
Fallah Islamic Boarding School is located on Jl. Darabirra Lampung,
Palapa, Central Tanjung Karang District, Bandar Lampung City.
The results of this study indicate that the process of implementing
manaqib in improving the worship of santriwan and female students at the
Bustanul Fallah Islamic Boarding School, Palapa Village, Central
Tanjungkarang District, Bandarlampung City, namely: Al-Qur'an chanting,
prayer beads and prayers, Reading of Manaqib Sheikh Abdul Qodir al�Jailani, Giving motivation, relationship, communication implementation and
development and improvement of manaqib implementation. And the impact of
manaqib in increasing the worship of santriwan and female students at the
Bustanul Fallah Islamic Boarding School, Palapa Village, Central
Tanjungkarang District, Bandarlampung City, that manaqib has a positive
impact on students and female students at the Bustanul Fallah Islamic
Boarding School, this is because before the students and the female students
studied at the Islamic Boarding School. At the pesantren they tend to be lazy
in worship, but after rutih doing manaqib activities there is an increase in the
worship of santriwan and santriwati. This is evidenced by changes in the
daily attitude of 25 students and female students after carrying out routine
manaqib activities.
Keywords: Manaqib, Sheikh Abdul Qodir Al-Jailani, Increased Worshi
Organic manures enhance biomass and improve content, chemical compounds of essential oil and antioxidant capacity of medicinal plants: A review
No full textThe current farming systems strongly depend on chemical fertilizers (CF), which are widely applied to increase crop yield worldwide. However, although CF enhance crop yield in the short term, their excessive and long-term application can have adverse effects on environmental and human health. One of the most important goals of sustainable agriculture is substituting CF with organic manures. Organic manures can be used as a low-cost and safe alternative for CF. They contain essential nutrients for crop growth, improve soil conditions and nutrient availability, increase plant growth, and ultimately enhance yield. The application of organic manures to medicinal plants (MP) is more critical than to other plants, because organic manures not only enhance the growth and productivity of MP but also modify quality of their products. In this review, the effect of different types of organic manures on the biomass, content and chemical compositions of essential oil and antioxidant activity of various MP has been investigated. The included information was gathered from scientific databases such as Science Direct, Google Scholar, PubMed, and Scopus. Many of the collected studies showed that organic manures increase biomass and improve the quality of these plants. The findings of this review indicate that broiler litter (BL) and compost (C) are highly recommended as organic manures to promote biomass. Moreover, C, sheep manure, and vermicompost (VC) are suggested as the optimal organic manures for enhancing the essential oil content. Organic manures significantly changed the aroma profile of the essential oils and in many cases, they enhanced major chemical compositions. The usage of VC raised the content of the linalool of studied MP. Most of the organic manures, especially BL, VC, farmyard manure, and poultry manure increased the antioxidant activity of these plants. Hence, the utilization of organic manures can be recommended for productivity enhancement and quality improvement of MP
A gain scheduled robust linear quadratic regulator for vehicle direct yaw moment Control
No full textDirect yaw moment controllers improve vehicle stability and handling in severe manoeuvres. In direct yaw moment control implementations based on Linear Quadratic Regulators (LQRs), the control system performance is limited by the unmodelled dynamics and parameter uncertainties. To guarantee robustness with respect to uncertainties, this paper proposes a gain scheduled Robust Linear Quadratic Regulator (RLQR), in which an extra control term is added to the feedback contribution of a conventional LQR to limit the closed-loop tracking error in a neighbourhood of the origin of its state-space, despite the uncertainties and disturbances acting on the plant. In addition, the intrinsic parameter-varying nature of the vehicle dynamics model with respect to the longitudinal vehicle velocity can compromise the closed-loop performance of fixed-gain controllers in varying driving conditions. Therefore, in this study the control gains optimally vary with velocity to adapt the closed-loop system to the variations of this parameter. The effectiveness of the proposed RLQR in improving the robustness of a classical LQR against model uncertainties and parameter variations is proven analytically, numerically and experimentally. The simulation and vehicle test results are consistent with the formal analysis proving that the RLQR reduces the ultimate bound of the error dynamics
Cultivation: Effects of Different Manures on Plant Growth and Essential Oil Production during Consecutive Harvests
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