<p><em>One form of physiotherapy is utilizing heat for recovery. Heat therapy can open blood vessels wider, thereby increasing blood flow and supply of oxygen and nutrients to reduce pain in joints, muscles, ligaments and injured tanks. To help health services in the field of physiotherapy the author modifies the therapeutic pillow with Arduino Uno and DS18B20 based as a temperature sensor, LCD as a temperature viewer and a timer and button that functions to choose how long it takes to do therapy. The design of therapeutic pillows is divided into two, namely hardware and software design, hardware design including power supply, a series of drivers and system scenarios. While the software design of this tool uses the Arduino and proteus applications as software. The result of the percentage error at the TP2 measurement is 0.02%. The measurement results on TP3 when the tool is off or off, then the circuit does not get a voltage while when the device is turned on or on the driver circuit gets a voltage of 1.4 Volt. After making the process of making, testing, testing tools and data collection, the author has succeeded in designing a heat therapy pillow using a temperature sensor and ARDUINO UNO based timer controller that can provide convenience when going to heat therapy because it is equipped with an automatically controlled temperature sensor and controller timer. by DS1820 temperature sensor. A therapeutic pillow based on Arduino with 10 minutes of therapy results in a </em><em>temperature of 41</em><em> °C.</em></p><div id="gtx-trans" style="position: absolute; left: 192px; top: 89.9861px;">  </div>

High economic growth makes the demand for comfortable and safe houses increase and the application of technology that is most clearly seen is technology with automatic systems. With this technology, the use of electricity in the house can be minimized and offer convenience in controlling the house. Sometimes homeowners forget to turn off the lights when they are outside the house so they have to go back and do checks that are very inefficient both in terms of time and financially such as the cost of gasoline to return to the house. Based on this, the Smart Home Prototype was created with the concept of the Internet of Things (IoT) using Raspberry Pi Web-Based, which is a system that can remotely control electronic home appliances using Raspberry Pi as a base system, which is connected to Web Applications through the internet network. The electronic equipment used in this study is in the form of 5 lamps, 1 stepper motor to control the garage, 1 servo motor to control the door lock, and 1 brushless motor that functions as a fan. Blocking and overall test results on Bedroom Lights, Living Room Lights, Kitchen Lights, Bathroom Lights, Porch Lights, Garages, Door Locks, and Fans, all work well. The testing of the distance between cities against the Prototype Smart Home was successfully carried out, where the Prototype Smart Home in the City of Demak was successfully controlled by the User who at the time of testing was in the City of Semarang, Kudus, Japan, Surabaya, and Jakarta.

Perubahan tataguna lahan yang menjadikan permukaan tanah semakin kedap menyebabkan penurunan infiltrasi air tanah dan peningkatan debit aliran permukaan. Berbagai upaya yang dilakukan dengan menggunakan sumur resapan dan biopori belum mencapai hasil yang diharapkan. Pipa resapan horisontal diharapkan menjadi salah satu solusi untuk mengatasi permasalahan tersebut. Dengan menggunakan pipa horisontal dinding berlubang panjang 2 m sampai 7 m diameter 10 cm diperoleh pengaruh variabel panjang terhadap debit resapan air di dalam tanah. Debit resapan air dengan pipa horisontal diameter 30 cm, panjang L cm, rasio lubang dinding 0.028, dan tinggi tekan air H cm pada tanah jenis clay dengan permeabilitas 7.09 x 10-6 cm/detik dinyatakan dengan persamaan Q=0.00019xL0,913 xH2.3965 . Debit banjir pada sebuah DAS dihitung dengan rumus Rasional dan kebutuhan pipa resapan horisontal dapat diperoleh dengan menggunakan grafik. Penggunaan pipa resapan horisontal dengan spesifikasi lain dan jenis tanah yang berbeda perlu dilakukan pengembangan penelitian. Hasil penelitian ini diharapkan dapat digunakan untuk memelihara konservasi air sekaligus penangan permasalahan banjirKata kunci: pipa resapan horisontal, konservasi, banjir

<p>  A syringe pump is a tool for inserting high-dose drug fluids given to patients. The accuracy and accuracy of the amount of fluid given to this device are quite high. The need for this tool in hospitals is very large, but in terms of the economy, the price of the equipment is still very expensive so it is not affordable for small hospitals. The purpose of making a syringe pump is to be able to meet the needs of the syringe pump in small hospitals so that it can save on budget expenses. Therefore a syringe pump is designed, designed using the Arduino Nano as a control system, display flow speed with 16x2 LCD, stepper motor as a syringe booster according to the regulated flow speed, and buzzer as an alarm when a blockage occurs and the syringe placement is incorrect. Flowrate parameters at a speed of 10 ml / hour, 20 ml / hour, 30 ml / hour, 40 ml / hour and 50 ml / hour.</p><p>Keywords: Syringe Pump, flowrate, stepper motor, Arduino Nano  </p>

Aktivitas pembangunan proyek konstruksi bangunan gedung pada umumnya merupakan kegiatan yang sangat komplek dan sangat berbahaya. Kondisi seperti ini menunjukan karakter yang keras dan sulit dilaksanakan, sehingga dibutuhkan tenaga yang sangat kuat dari pekerja. Karena pekekerjaan didalam proyek yang sangat komplek, tidak dapat dipungkiri bahwa dalam proses pelaksanaan kegiatan konstruksi menunjukan angka kecelakaan yang terjadi cukup tinggi. Dalam penelitian ini akan dibahas mengenai faktor - faktor yang mempengaruhi keselamatan dan kesehatan kerja ( K3 ), tindakan penerapan keselamatan dan kesehatan kerja ( K3 ) dan risiko keselamatan dan kesehatan kerja ( K3 ) dengan tujuan untuk mengetahui jenis jenis risiko, faktor faktor yang mempengaruhi dan pengelolaan manajemen risiko keselamatan dan kesehatan kerja pada proyek pembangunan gedung di semarang. Analisis data yang dilakukan dengan membuat kuisioner dan penyebaran kuisioner kepada 45 responden. Responden itu sendiri terdiri dari direktur, konsultan dan kontraktor. Penelitian ini simpulkan bahwa penerapan manajemen risiko keselamatan dan kesehatan kerja sangatlah berpengaruh dalam pembangunan gedung.Kata kunci : keselamatan dan kesehatan kerja; manajemen risiko; proyek pembangunan gedung.

A class D amplifier is one in which the output transistors are operated as switches. When a transistor is off, the current through it is zero and when it is on, the voltage across it is small, ideally zero. Thus the power dissipation is very low, so it requires a smaller heat sink for the amplifier. Class D amplifier operation is based on analog principles and there is no digital encoding of the signal. Before the emergence of class D amplifiers, the standard classes were class A, class AB, class B, and class C. The classic method for generating signals driving a transistor MOSFET is to use a comparator. One input is driven by an incoming audio signal, and the other by a triangle wave or a sawtooth wave at the required switching frequency. The frequency of a triangular or sawtooth wave must be higher than the audio input. MOSFET transistors work in a complementary manner that operates as a switch. Triangle waves are usually generated by square waves fed to the integrator circuit. So the main part of processing audio signals into PWM (Pulse Width Modulation) is the integrator and comparator. In this paper, we will discuss the work of a class D amplifier system using the summing integrator method as its main part.

Abstrak: Sistim pracetak sudah banyak digunakan pada bangunan bertingkat banyak. Penggunaan metode pracetak dengan ukuran panel yang cukup besar menjadi tidak efisien jika diterapkan pada pekerjaan bangunan bertingkat dua sederhana. Dalam penelitian ini alternatif yang diperkenalkan dalam pembuatan pelat lantai adalah dengan menggunakan metoda semi precast berupa panel-panel yang lebih kecil agar memungkinkan untuk diangkat tanpa bantuan alat berat.Penelitian yang dilakukan mempunyai tujuan untuk mengetahui berapa besar penghematan waktu dan biaya yang digunakan dengan menggunakan pelat semi precast dibanding dengan menggunakan sistem cast in situ. Dengan harapan akan didapat suatu metode pelaksanaan dan cara perancangan yang lebih efisien serta dapat mengoptimalkan penggunaan pelat semi precast sebagai komponen bekisting sekaligus sebagai komponen elemen struktural lantai bangunan gedung dan dapat diaplikasikan pelaksanaannya pada pekerjaan swakelola oleh masyarakat.Penelitian dilakukan pada rumah di Jalan Prambanan Timur II Semarang dengan luasan tanah sebesar 247.5 m2, luas bangunan 300   m2, luas pelat lantai sebesar 129,5 m2 dan pelat tandon air sebesar 13 m2.  Dari hasil analisis total biaya pembangunan rumah tinggal dengan metode cast in situ adalah Rp 1.348.511.161,00 dan dengan metode cast in situ adalah Rp   1.286.646.693,00. Dari hasil tersebut nampak bahwa menggunakan metode semi precast selisih atau lebih murah sebesar Rp   61.864.468,00 atau sebesar 4,59 %. Dari hasil analisis kurva S pembangunan rumah tinggal tersebut dengan menggunakan metode cast in situ membutuhkan waktu 48 minggu, sedangkandengan menggunakan sistem semi precast membutuhkan waktu 42 minggu. Dari hasil tersebut nampak bahwa menggunakan metode semi precast selisih atau lebih cepat 6 minggu atau sebesar 12,5%. Hasil penelitian tersebut menunjukkan bahwa dari segi biaya dan waktu, metode pelaksanaan dan cara perancangan pelat semi precast lebih efisien daripada metode pelat cast in situ dan dapat diaplikasikan pelaksanaannya pada pekerjaan swakelola oleh masyarakat. Hasil penelitian tersebut menunjukkan bahwa dari segi biaya dan waktu, metode pelaksanaan dan cara perancangan pelat semi precast lebih efisien daripada metode pelat cast in situ dan dapat diaplikasikan pelaksanaannya pada pekerjaan swakelola oleh masyarakat.  Kata Kunci: pelat lantai, semi precast, Rancancangan Biaya Anggaran, kurva S  Abstract: The precast system has been widely used in multi-storey buildings. The use of precast methods with large enough panel sizes becomes inefficient when applied to simple two-story building work. In this study an alternative introduced in the manufacture of floor plates is to use semi-precast method of smaller panels to enable to be removed without the help of heavy equipment.The research has a purpose to find out how much time and cost savings are used by using semi-precast plate compared with using cast in situ system. With the hope of getting a method of implementation and design more efficient way and can optimize the use of semi-precast plates as components of formwork as well as components of structural elements of the building floor and can be applied to the implementation of self-managed work by the community.The study was conducted at the house on Jalan Prambanan Timur II Semarang with a land area of 247.5 m2, a building area of 300 m2, a floor plot area of 129.5 m2 and a water supply plate of 13 m2. From the analysis of total cost of residential development with method of cast in situ is Rp 1.348.511.161,00 and with method of cast in situ is Rp 1.286.646.693,00. From the result it appears that using semi precast method difference or cheaper is Rp 61.864.468,00 or 4.59%. From the residence curve S residence analysis using cast in situ method takes 48 weeks, sedangkandengan using semi precast system takes 42 weeks. From the results it appears that using semi precast method difference or faster 6 weeks or 12.5%. The results of this study indicate that in terms of cost and time, the method of execution and the design of semi-precast plates more efficient than cast in situ plate method and can be applied to the implementation of self-managed work by the community. The results of this study indicate that in terms of cost and time, the method of execution and the design of semi-precast plates more efficient than cast in situ plate method and can be applied to the implementation of self-managed work by the community.  Keywords: floor plates, semi precast, Budget Cost Design, S curve

Concrete research has been carried out, this study utilizes wood burning husk ash and fine powder of briquette charcoal as an added material from the weight of cement and sand used from Boyolali. This study aims to determine the compressive strength of concrete with materials added to wood burning husk ash and fine powder of briquette charcoal. Material variations added wood burning husk ash and briquette charcoal fine powder by 0%, 10%, 20% by weight of cement. This study used 0.5 fas and concrete testing at the age of 7 days, 14 days and 28 days. From the test results the average compressive strength of concrete at the age of 7 days with a material variation of 10% added was 15.05 MPA, and a material variation of 20% added was 13.47 MPA. Concrete at the age of 14 days with a material variation of 10% added is 15.76 MPA, and a material variation of 20% is 13.18 MPA. concrete at 28 days with a material variation of 10% added is 14.32 MPA, and a 20% added material variation is 14.32 MPA.  Keywords; wood burning husk ash, compressive strength, fine briquette charcoal powder  AbstrakPenelitian beton telah banyak dilakukan, penelitian ini memanfaatkan abu sekam pembakaran kayu dan serbuk halus arang briket sebagai bahan tambah dari berat semen dan pasir yang digunakan dari boyolali. Penelitian ini bertujuan untuk mengetahui kuat tekan beton dengan bahan tambah abu sekam pembakaran kayu dan serbuk halus arang briket. Variasi bahan tambah abu sekam pembakaran kayu dan serbuk halus arang briket sebesar 0%, 10%, 20% dari berat semen. Penelitian ini menggunakan fas 0,5 dan pengujian beton pada umur 7 hari, 14 hari dan 28 hari. Dari hasil pengujian kuat tekan rata-rata beton pada umur 7 hari dengan variasi bahan tambah 10% adalah 15,05 MPA, dan vari asi bahan tambah 20% adalah 13,47 MPA. Beton pada umur 14 hari dengan variasi bahan tambah 10% adalah 15,76 MPA, dan variasi bahan tambah 20% adalah 13,18 MPA. beton pada umur 28 hari dengan variasi bahan tambah 10% adalah 14,32 MPA, dan vari asi bahan tambah 20% adalah 14,32 MPA.  Kata kunci : abu sekam pembakaran kayu, kuat tekan, serbuk halus arang briket

                                            ABSTRAK Jasa konstruksi adalah salah satu sektor yang memiliki resiko. Maka dari itu diambil penelitian tentang penerapan Keselamtan dan Kesehatan Kerja (K3) pada proyek Pembangunan Gedung Tahap II Kanwil Dirjen Bea dan Cukai Jawa Tengah dan D.I Yogyakarta yang berada di Jl. A. Yani No. 139 di kota Semarang dan dikerjakan oleh kontraktor KSO. PT. Satriamas Karyatama-PT. Gala Tama. Karena proyek tersebut memiliki tingkat kerawanan yang tinggi terhadap kemungkinan terjadinya kecelakaan kerja. Tujuan dari penelitian ini adalah untuk menganalisis Penerapan Keselamatan dan Kesehatan Kerja (K3 ). Pada Pekerjaan Pembangunan Gedung Tahap II Kanwil Dirjen Bea dan Cukai Jawa Tengah dan D.I. Yogyakarta. Pada penelitian ini menggunakan kuesioner sebanyak 35 responden.. Setelah menyebarkan kuesioner dan didapat data dari responden selanjutnya dihitung dengan menggunakan rumus IKR. Dari hasil penelitian yang telah dilakukan sebagian besar responden adalah pekerja dengan presentase 62.8% dan berpengalaman lebih dari lima tahun dengan usia 20-50 tahun dan sebagian besar berpendidikan SMA sederajat dengan presentase 60%. Untuk jaminan K3 yang paling besar cukup baik dan penyebab timbulnya kecelakaan kerja yang paling banyak adalah kurangnya kesadaran pekerja itu sendiri sedangkan aturan yang diterapkan cukup baik. Untuk fasilitas APD yang sering digunakan helm proyek sampai dan taat pada rambu-rambu K3. Artinya program-program penerapan K3 pada proyek sudah dilaksanakan dengan baik. Kata Kunci : keselamatan dan kesehatan kerja, konstruksi, proyek, penyebaran kuesioner, hasil penelitian.

The crossing railway line with the highway is quite a lot in several places in Indonesia, especially on the island of Java. This is a problem in itself because it considers this crossing to have a negative impact on users of land transportation. Moreover, the government does not yet have a policy relating to planning, regulation, supervision and supervision at a level crossing and is discussed with traffic accidents at the intersection of a basic plot to develop systems and procedures at level crossings.The crossing between the Semarang-Purwodadi highway and the Semarang-Surabaya / Solo railway line across the crossing lane on Ganefo still uses a level crossing. In the end, it caused a quite serious problem, namely severe congestion at the time of leaving and returning to work and even frequent traffic accidents. The existence of level crossings at this point is the focus of research by using proposals issued by the Ministry of Attention regarding railway crossings with highways can be made without a door, or can be in a plot with doors equipped, or can be made a plot, according to the research objectives. this is knowing the type of crossing that is right at the crossing of Ganefo. The results of the calculation of the Daily Average Daily Traffic of the Purwodadi-Semarang Directions traffic on the Ganefo pathway found numbers of 15928.2 pcu with the percentage of motorcycle transportation modes (motor cycle) amounting to 87.47%. Whereas the opposite direction, namely Semarang-Purwodadi, is 12784.8 pcu and the percentage of motorbikes is 78.85% of the total traffic volume. The direct observation of the train journey at the Ganefo crossing point shows the number of train trips that cross the Ganefo as many as 18 trains / day. The average length of the vehicle is at 191,429 meters during peak hours. Charting the criteria for selecting the crossing type of the Ministry of Transportation shows that the crossing point of Ganefo still depends on the position of the point where it is still permitted to use level crossings with safety doors. However, taking into account the increasing number of train trips and considerations of inconvenience and security of road users, this is at risk because depending on the position of the point required the type of crossing is not as large.