Engine Misfire and Knocking Detection on Vehicle Using Closed Loop System

Air pollutant to environment is the major issue due to gas emission from industries and vehicles. The source from the vehicle are misfire condition and worse knocking condition will affect the engine. It cause by several components failure such as clogged spark plugs and high voltage cables, insufficient intake mixture, and others. A study is presented of the influence of using a microcontroller to actuate artificial engine misfire and knocking condition on a spark ignition engine. Single cylinder engine is use in the study. The paper focuses on detection of engine misfire and knocking (EMK) by actuating the artificial condition of EMK. Microcontroller is design to initiate spark plug ignition timing by several times, so the signals can be identifies for the fault detection. A switch will be controlling the artificial misfire and knocking condition. Therefore the switch for artificial EMK condition is located with the same controller. The accelerometer mounted on the engine signal and it will record during the artificial EMK condition is activated for analysis.

RANCANGAN BANGUN SISTEM KONTROL OTOMATIS PENGATUR SUHU DAN KELEMBAPAN KANDANG AYAM BROILER MENGGUNANAKAN ARDUINO

Para peternak ayam pedaging masih menggunakan cara manual dalam menjaga suhu optimal kandang. Rutinitas tersebut menyebabkan suatu masalah yaitu kelupaan peternak dalam menjaga suhu dan kelembaban pada kandang ternaknya. Maka di Buatlah Sistem otomatisasi kandang ternak ini menggunakan Arduino sebagai pengontrol keseluruhan sistem. Alat yang di gunakan pada sistem ini yaitu arduino Mega 2560, Sensor DHT11, Fan DC, lcd 16x2, Motor Driver L293D, Driver Motor DC to AC 220V, Lampu Pijar, fan, Ethernet Shield W5100,TP Link dan Modem GSM. Dengan metode literatur dan eksperimental yang memanipulasi atau mengontrol situasi alamiah dengan cara membuat kondisi buatan (artificial condition). Pembuatan kondisi ini dilakukan oleh si peneliti. Dengan demikian, penelitian eksperimen adalah penelitian yang dilakukan dengan mengadakan menipulasi terhadap objek penelitian, serta adanya kontrol yang disengaja terhadap objek penelitian tersebut. Sistem pemanas berjalan berdasarkan 1 inputan dari DHT11 yang berfungsi membaca suhu dan kelembaban pada kandang. PWM digunakan sebagai penentu tingkat intensitas cahaya dan kecepatan putaran kipas pada kandang. Hasil dari model system Kontrol Otomatis ini adalah mampu mempertahankan keseimbangan pada kondisi Suhu 31°– 34° C dan Kelembaban 50-60% , suhu tersebut sudah sesuai oleh standar suhu yang di butuhkan oleh ayam broiler pada masa Starter.

Review: Peter Sloterdijk, Der Ästhetische Imperativ – Schriften zur Kunst

Peter Sloterdijk’s Der Ästhetische Imperativ – Schriften zur Kunst is a collection of essays addressing a range of topics in the aesthetic realm, including sound, light, product design, cities and architecture, the human (artificial) condition, museums, action cinema and the art system. Via a ‘media’-anthropological, historico-philosophical approach, he critiques the ‘aesthetic imperative’ of (post-)modern design civilizations by re-evaluating the analogy between universal ethics and aesthetics after Kant. In this way, Sloterdijk argues for a more singular, intensive, socially and environmentally responsible aesthetic experience.

Genetics, molecular dissection and identification of high yielding disease resistant lines to MYMV in blackgram (Vigna mungo)

The productivity of blackgram is very low which is mainly due to losses caused by several biotic stresses. Among the biotic stresses mungbean yellow mosaic virus (MYMV) is the most serious disease on this crop with an estimated yield loss of 100% under severe conditions. In this context, study of genetics of resistance to MYMV needs major attention. In this paper, we reported genetics of the resistance to MYMV disease in blackgram using a F₂ and F₃ populations derived from a cross between the susceptible but agronomically superior parent TAU-1 and the resistant parent BDU-4. The parents, F₁, F₂, F₃ populations were evaluated for MYMV resistance against the virus in artificial condition. The population size in F₂ was three hundred. The results suggested that the MYMV resistance in blackgram is governed by a single dominant gene. Out of 610 SSR and RGA markers screened 24 were found to be polymorphic between two parents. Based on phenotyping in F₂ and F₃ generations nine high yielding disease resistant lines have been identified.

An Artificial Boundary Condition for a Class of Quasi-Newtonian Stokes Flows

An artificial boundary condition method, derived in terms of infinite Fourier series, is applied to solve a class of quasi-Newtonian Stokes flows. Based on the natural boundary reduction involving an artificial condition on the artificial boundary, the coupled variational problem and its numerical solution are obtained. The unique solvability of the continuous and discrete formulations are discussed, and the error analysis for the problem is also considered. Finally, an a posteriori error estimate for the corresponding problem is provided.